CN104641772B - Fertilizer feedway or material used for agriculture feedway - Google Patents

Abstract

A fertilizer supply device or an agricultural material supply device, in which a first connecting member and a second connecting member are connected between a single drive unit that reciprocates within a predetermined range, and an arm of a first one-way clutch and an arm of a second one-way clutch. part. By the forward motion of the drive unit, the first one-way clutch is rotationally driven in a predetermined direction, the second one-way clutch is rotationally driven in a direction opposite to the predetermined direction, and the drive shaft is rotationally driven in a predetermined direction by the first one-way clutch. By the return operation of the drive unit, the first one-way clutch is rotationally driven in a direction opposite to the predetermined direction, the second one-way clutch is rotationally driven in a predetermined direction, and the drive shaft is rotationally driven in a predetermined direction by the second one-way clutch. According to the present invention, the reciprocating motion of the drive unit can be efficiently transmitted to both the first one-way clutch and the second one-way clutch, thereby rotationally driving the drive shaft of the delivery unit.

Description

Fertilizer supply device or agricultural material supply device

technical field

The present invention relates to a fertilizer supply device or an agricultural material supply device for sending out powdery rice seeds, fertilizers and chemicals, and liquid fertilizers and chemicals (the above are equivalent to agricultural materials) to paddy fields or dry fields. Or the driving structure of the agricultural material supply device.

Background technique

As an example of an agricultural material supply device, as disclosed in Patent Document 1, for example, it is a fertilizing device that supplies powdery fertilizer to a field surface. In Patent Document 1, a riding rice transplanter is equipped with a fertilizing device.

In Patent Document 1, there is a first one-way clutch (38 in Figures 7 and 14 of Patent Document 1) and a first one-way clutch (38 in Figure 7 and Figure 14 in Patent Document 1) on the drive shaft (21 in Figure 7 and Figure 14 in Patent Document 1) that drives the delivery section, and 2 one-way clutches (42 in Fig. 14 of Patent Document 1). It has a drive unit (40 in FIG. 7 of Patent Document 1) that reciprocates up and down within a predetermined range by the transmitted power, and the drive unit is connected to the first one-way clutch.

It has a relay member separated from the first and second one-way clutches (44 in Fig. 7 and Fig. 14 of Patent Document 1), and a rod is connected between the first one-way clutch and the switching member (Patent Document 1 Fig. 7 and Fig. 14 of 45), and a rod is connected between the second one-way clutch and the switching member (patent document 1 FIG. 7 and 46 of FIG. 14).

Thus, in FIG. 7 of Patent Document 1, when the drive unit moves upward, the first one-way clutch is rotationally driven in the counterclockwise direction of the paper, and the driving shaft is driven by the first one-way clutch in the counterclockwise direction of the paper. Rotary drive.

At the same time, the operation of the first one-way clutch is transmitted to the second one-way clutch through the two levers and the conversion member, so that the second one-way clutch is rotationally driven clockwise on the drawing. In this case, as long as the second one-way clutch is idling, the drive shaft will not be rotationally driven by the second one-way clutch.

Next, when the driving part moves downward, the first one-way clutch is rotationally driven clockwise in the drawing. In this case, as long as the first one-way clutch is idling, the drive shaft will not be rotationally driven by the first one-way clutch.

At the same time, the action of the first one-way clutch is transmitted to the second one-way clutch through the two rods and the conversion member, and the second one-way clutch is rotated and driven counterclockwise on the paper, and the driving shaft is counterclockwise on the paper. It is rotationally driven by the second one-way clutch.

As described above, according to the structure of Patent Document 1, the drive shaft has the first and second one-way clutches for the reciprocating drive portion, whereby the forward motion of the drive portion is transmitted to the drive shaft through the first one-way clutch, The drive shaft is rotationally driven by the first one-way clutch, the reciprocating motion of the drive unit is transmitted to the drive shaft through the second one-way clutch, and the drive shaft is rotationally driven by the second one-way clutch.

Patent Document 1: Japanese Patent Application Laid-Open No. 2002-95312 (see FIGS. 6, 7, 13, and 14)

In the structure of Patent Document 1, the forward motion of the driving part is directly transmitted to the first one-way clutch, and as opposed to this, the reciprocating motion of the driving part passes through the first one-way clutch, the lever, the conversion member and the lever, and more The components are transmitted to the second one-way clutch.

Accordingly, the transmission system that transmits the reversing operation of the drive unit to the second one-way clutch has a disadvantageous structure in terms of transmission efficiency.

Contents of the invention

The problem to be solved by the invention

The object of the present invention is to configure the fertilizer supply device or the agricultural materials supply device so that when the reciprocating motion of the drive part is transmitted to the first and second one-way clutches to rotate the drive shaft of the delivery part, the driving The reciprocating motion of the part is efficiently transmitted to both the first and second one-way clutches.

means to solve the problem

[I]

(constitute)

The first feature of the present invention is that the fertilizer supply device is configured as follows.

It has: a storage part for storing fertilizer; a delivery part for sending out the fertilizer in the storage part; and a drive shaft for driving the delivery part,

In addition, a single drive unit is provided for reciprocating within a predetermined range around a support axis parallel to the drive shaft by being transmitted with power, and all positions on the same side with respect to the support axis are provided. The part of the driving part is connected with one end of the first connecting member and one end of the second connecting member which are close to each other,

A first one-way clutch and a second one-way clutch are provided on the drive shaft, and the arm of the first one-way clutch and the arm of the second one-way clutch are configured to face opposite to each other. The other end of the first connecting member is connected to the arm of the one-way clutch, and the other end of the second connecting member is connected to the arm of the second one-way clutch,

By the outward movement of the drive unit, the first one-way clutch is rotationally driven in a predetermined direction, the second one-way clutch is rotationally driven in a direction opposite to the predetermined direction, and the driving shaft specified direction is rotationally driven by the first one-way clutch,

By the return operation of the drive unit, the first one-way clutch is rotationally driven in a direction opposite to the predetermined direction, the second one-way clutch is rotationally driven in the predetermined direction, and the drive shaft rotationally driven by the second one-way clutch in the predetermined direction,

In the state where the second connecting member is connected to the arm of the second one-way clutch, by detaching the second connecting member from the driving part, the driving part is performed by the second connecting member. and the connection of the arm of the 2nd one-way clutch is released,

The second one-way clutch can be fixed via the second connecting member by connecting the second connecting member detached from the driving portion to the fixing portion,

The rotation angle of the first one-way clutch by the forward motion of the drive unit is set to be smaller than the rotation angle of the second one-way clutch by the return motion of the drive unit,

A third one-way clutch is provided which allows the drive shaft to rotate in the predetermined direction and which prevents the drive shaft from rotating in a direction opposite to the predetermined direction.

(Function and Effect of Invention)

According to the first feature of the present invention, there are the same (functions and effects of the invention) as those of the second, third, fourth, fifth, sixth, seventh, ninth, and tenth features of the present invention described later.

[II]

(constitute)

The second characteristic of the present invention is that the agricultural material supply device is configured as follows.

It has: a storage part for storing agricultural materials; a sending part for sending out the agricultural materials in the storage part; and a drive shaft for driving the sending part,

And, it has: a single drive part, and the single drive part reciprocates within a predetermined range by being transmitted with power, and a first one-way clutch and a second one-way clutch are provided on the drive shaft, and the drive part a first connecting member is connected between the arm of the first one-way clutch, and a second connecting member is connected between the drive unit and the arm of the second one-way clutch,

By the outward movement of the drive unit, the first one-way clutch is rotationally driven in a predetermined direction, the second one-way clutch is rotationally driven in a direction opposite to the predetermined direction, and the driving shaft specified direction is rotationally driven by the first one-way clutch,

The first one-way clutch is rotationally driven in a direction opposite to the predetermined direction by the return operation of the drive unit, the second one-way clutch is rotationally driven in the predetermined direction, and the drive shaft It is rotationally driven by the second one-way clutch in the predetermined direction.

(Function and Effect of Invention)

According to the second characteristic of the present invention, a first one-way clutch and a second one-way clutch are provided on the drive shaft that drives the delivery unit. The one-way clutch is directly connected by the first connection member, and the drive unit and the second one-way clutch are directly connected by the second connection member.

Thus, according to the second feature of the present invention, when the driving part performs an outward movement, the forward movement of the driving part is transmitted to the first one-way clutch through the first connecting member, and the driving shaft is rotated in a predetermined direction by the first one-way clutch. drive. At the same time, the forward movement of the driving part is transmitted to the second one-way clutch through the second connecting member, and the second one-way clutch is rotationally driven in the direction opposite to the prescribed direction, while the second one-way clutch is idling relative to the drive shaft. .

Conversely, when the drive unit performs a return operation, the return operation of the drive unit is transmitted to the second one-way clutch through the second connecting member, and the drive shaft is rotationally driven in a predetermined direction by the second one-way clutch. At the same time, the reciprocating action of the driving part is transmitted to the first one-way clutch through the first connecting member, and the first one-way clutch is driven to rotate in the direction opposite to the specified direction, while the first one-way clutch is rotated relative to the drive shaft. idling.

As mentioned above, according to the second characteristic of the present invention, both the forward motion and the reverse motion of the drive part are directly transmitted to the first one-way clutch and the second one-way clutch, and the two forward motion and the reverse motion of the drive part are directly transmitted to the first one-way clutch and the second one-way clutch. side is efficiently transmitted to both the first one-way clutch and the second one-way clutch.

[III]

(constitute)

The third characteristic of the present invention is that the agricultural material supply device of the second characteristic of the present invention is configured as follows.

The arm of the first one-way clutch and the arm of the second one-way clutch are configured to face opposite to each other,

A first connection member is connected between the drive unit and the arm of the first one-way clutch, and a second connection member is connected between the drive unit and the arm of the second one-way clutch.

(Function and Effect of Invention)

According to the third characteristic of the present invention, when the driving unit performs forward movement, the first connecting member and the second connecting member move approximately in the same direction; Operates in the same direction (the first link member and the second link member do not move in opposite directions to each other during the forward action (backward action) of the drive unit).

Thus, when the driving part performs a forward movement, the forward movement of the driving part is transmitted to the first one-way clutch through the first connecting member, the first one-way clutch is rotationally driven in a predetermined direction, and the driving shaft is driven in a predetermined direction by the first one-way clutch. Rotate drive to the clutch. Simultaneously, the forward motion of the drive unit is transmitted to the second one-way clutch through the second connecting member, and the second one-way clutch is rotationally driven in a direction opposite to the predetermined direction, while the second one-way clutch idles relative to the drive shaft.

On the contrary, when the driving part performs a return action, the return action of the drive part is transmitted to the second one-way clutch through the second connecting member, the second one-way clutch is rotationally driven in a specified direction, and the drive shaft is driven in a specified direction by the second one-way clutch. The one-way clutch rotates the drive. At the same time, the reciprocating action of the driving part is transmitted to the first one-way clutch through the first connecting member, and the first one-way clutch is driven to rotate in the direction opposite to the specified direction, while the first one-way clutch is idling relative to the drive shaft. .

Therefore, according to the third feature of the present invention, when the first connecting member and the second connecting member move in substantially the same direction during the outward movement (returning movement) of the driving unit, the connection between the driving unit and the first connecting member part, and the connecting part of the driving part and the second connecting part are close to each other, so that the first connecting part and the second connecting part can move in substantially the same direction during the forward movement (backward movement) of the driving part.

As described above, by making the connecting portion of the driving portion and the first connecting member and the connecting portion of the driving portion and the second connecting member close to each other, the connecting portions of the driving portion and the first and second connecting members can be made compact. .

[IV]

(constitute)

The fourth characteristic of the present invention is that the agricultural material supply device of the third characteristic of the present invention is configured as follows.

The driving part reciprocates within a specified range around the supporting shaft core,

The first connecting member and the second connecting member that are close to each other are connected to a portion of the drive unit that is on the same side with respect to the support shaft.

(Function and Effect of Invention)

When the driving part reciprocates within a predetermined range around the supporting shaft core, according to the fourth feature of the present invention, by connecting one end of the first connecting member and the One end of the second connecting member can easily obtain the structure that the first connecting member and the second connecting member move in substantially the same direction during the forward movement (backward movement) of the drive unit as described in the preceding item [III]. .

[V]

(constitute)

A fifth feature of the present invention is that the agricultural material supply device of the fourth feature of the present invention is configured as follows.

The drive shaft is set parallel to the support shaft core.

(Function and Effect of Invention)

As described in the fifth characteristic of the present invention, by setting the drive shaft and the supporting shaft center of the drive part in parallel, the predetermined direction of rotation of the drive shaft and the forward motion (return motion) of the drive part can be set in the direction In the same direction, the reciprocating motion of the driving part around the supporting shaft is smoothly transmitted to the first and second one-way clutches (drive shafts).

[VI]

(constitute)

A sixth feature of the present invention is that any one of the agricultural material supply devices of the second to fifth features of the present invention is configured as follows.

The connection between the drive unit and the arm of the second one-way clutch by the second connection member can be released.

(Function and Effect of Invention)

According to the sixth characteristic of the present invention, the following state can be obtained by releasing the connection between the drive unit and the arm of the second one-way clutch via the second connection member.

When the driving part performs a forward movement, the forward movement of the driving part is transmitted to the first one-way clutch through the first connecting member, and the driving shaft is rotationally driven by the first one-way clutch in a predetermined direction. The reciprocating action will not be transmitted to the second one-way clutch.

Thus, according to the sixth feature of the present invention, by canceling the connection between the driving part and the arm of the second one-way clutch via the second connecting member, the connection between the driving part and the arm of the first one-way clutch and the second In the state where the first link member and the second link member are connected between the arms of the one-way clutch, the rotation speed of the drive shaft can be set to 1/2.

[VII]

(constitute)

A seventh feature of the present invention is that the agricultural material supply device according to the sixth feature of the present invention is configured as follows.

By detaching the second link member from the drive unit in a state where the second link member is connected to the arm of the second one-way clutch, the drive unit is performed by the second link member. and the connection of the arm of the 2nd one-way clutch is released,

The second one-way clutch can be fixed via the second connecting member by connecting the second connecting member detached from the driving portion to the fixing portion.

(Function and Effect of Invention)

As described in the preceding item [VI], when the connection between the driving part and the arm of the second one-way clutch through the second connection member is released, according to the seventh feature of the present invention, it is configured that the second connection In a state where the member is connected to the arm of the second one-way clutch, the second connecting member is detached from the driving portion, and the second connecting member detached from the driving portion is connected to the fixing portion.

Thus, according to the seventh feature of the present invention, when the forward movement of the drive part is transmitted to the first one-way clutch via the first connecting member, and the driving shaft is rotationally driven by the first one-way clutch in a predetermined direction, the second one-way clutch The direction clutch and the second connection member are fixed, and the second one-way clutch and the second connection member are not swung along with the rotation of the drive shaft in a predetermined direction.

[VIII]

(constitute)

An eighth feature of the present invention is that the agricultural material supply device according to the sixth or seventh feature of the present invention is configured as follows.

The drive unit, the first one-way clutch and the second one-way clutch, the first connecting member and the second connecting member are provided on the right or left end of the agricultural material supply device,

The second connecting member is disposed laterally outside the agricultural material supply device relative to the first connecting member.

(Function and Effect of Invention)

The agricultural material supply device is usually mounted on a work vehicle such as a ride-on rice transplanter. When the agricultural material supply device is mounted on the work vehicle, the right and left ends of the agricultural material supply device are often located on the right and left lateral sides of the work vehicle. Therefore, compared with the front or rear side of the agricultural material supply device, the right and left end parts of the agricultural material supply device are often in a state of being opened laterally outward.

In the aforementioned state, according to the eighth feature of the present invention, since the right or left end of the agricultural material supply device has a driving part, a first one-way clutch and a second one-way clutch, a first connection member and a second connection Therefore, as described in the preceding items [VI] and [VII], the operator can easily release the driving part and the second one-way through the second connecting part from the right or left lateral outside of the agricultural material supply device. The connection of the arm of the clutch.

In this case, according to the eighth feature of the present invention, since the second connecting member is disposed laterally outside the agricultural material supply device with respect to the first connecting member, the operator is not affected by the first connecting member and can The connection between the drive unit and the arm of the second one-way clutch by the second connection member is easily released.

[IX]

(constitute)

A ninth feature of the present invention is configured as follows in any one of the agricultural material supply devices according to the sixth to eighth features of the present invention.

The rotation angle of the first one-way clutch by the forward motion of the drive unit is set to be smaller than the rotation angle of the second one-way clutch by the return motion of the drive unit.

(Function and Effect of Invention)

[IX]-1

In the state of the first one-way clutch and the state of the second one-way clutch are the same state, as described in the previous item [VI], when the first state and the second state are set, that is, between the drive part and the first The first state in which the first connecting member and the second connecting member are connected between the arm of the one-way clutch and the arm of the second one-way clutch, and the connection between the drive unit and the first connecting member of the first one-way clutch is maintained state, the second state in which the connection between the driving part and the arm of the second one-way clutch through the second connecting member is released, the rotational speed of the drive shaft in the first state and the rotational speed of the drive shaft in the second state should be In a 2:1 relationship.

If it is configured to change the rotation speed of the drive shaft in the first state and the second state to change the delivery amount of the delivery unit, the change range of the rotation speed of the drive shaft in the first state (the change range of the delivery amount) , and the changing range of the drive shaft rotation speed (the changing range of the delivery amount) in the second state should be the same.

However, in reality, the rotational speed of the drive shaft in the first state and the rotational speed of the drive shaft in the second state are not in a relationship of 2:1, but may be in a relationship of, for example, 2:1.2.

Thus, in the case where the rotation speed of the drive shaft is changed in the first state and the second state to change the delivery amount of the delivery unit, the change range of the rotation speed of the drive shaft in the first state (the change range of the delivery amount) ), and the changing range of the rotational speed of the drive shaft in the second state (the changing range of the delivery amount) sometimes deviates.

This is considered to be the reason shown in [IX]-2 and 3 below.

[IX]-2

In the second state, when the drive unit performs forward movement, the forward movement of the drive unit is transmitted to the first one-way clutch through the first connecting member, and the drive shaft is rotationally driven in a predetermined direction by the first one-way clutch. On the other hand, the forward motion of the drive unit is not transmitted to the second one-way clutch.

Thus, when the driving part starts to perform the forward movement and stops when it reaches the end of the moving range of the forward movement, it has the function that the first one-way clutch connected to the driving part through the first connecting member stops at the same time. 1. The one-way clutch allows the drive shaft to rotate first, so it is considered that the drive shaft does not stop at the same time due to inertia and then rotates slightly in the prescribed direction before stopping (hereinafter referred to as the phenomenon of overrunning of the drive shaft (Japanese: 駆动轴)のオーバーラン phenomenon)).

Therefore, for example, as shown in FIG. 22 , in the second state, the rotation angle AA1 of the drive shaft generated by the forward motion of the drive portion is not the rotation angle A3 of the first one-way clutch generated by the forward motion of the drive portion. On the other hand, it is assumed that the rotation angle AA1 is slightly larger than the rotation angle A3.

[IX]-3

With respect to the second state, in the first state, when the driving part performs an outward movement, the outward movement of the driving part is transmitted to the first one-way clutch through the first connecting member, and the driving shaft is rotated in a predetermined direction by the first one-way clutch drive. Simultaneously, the forward motion of the drive unit is transmitted to the second one-way clutch through the second connecting member, and the second one-way clutch is rotationally driven in a direction opposite to the predetermined direction, while the second one-way clutch idles relative to the drive shaft.

In this case, although the second one-way clutch is rotationally driven in the direction opposite to the specified direction, it is regarded as the first one-way clutch as described in the preceding item [IX]-2 because it acts as a resistance to the drive shaft. The resulting overrun phenomenon of the drive shaft is difficult to occur.

The same applies to the case where the drive unit performs a return operation. The return operation of the drive unit is transmitted to the second one-way clutch through the second connecting member, and the drive shaft is rotationally driven in a predetermined direction by the second one-way clutch. At the same time, the reciprocating action of the driving part is transmitted to the first one-way clutch through the first connecting member, and the first one-way clutch is driven to rotate in the direction opposite to the specified direction, but the first one-way clutch is idling relative to the drive shaft. .

In this case, although the first one-way clutch is rotationally driven in the direction opposite to the predetermined direction, it becomes a resistance to the drive shaft, so it is considered that the second one-way clutch as described in the preceding item [IX]-2 generates The overrun phenomenon of the drive shaft is difficult to occur.

Thus, for example, as shown in FIG. 22 , in the first state, it is considered that the rotation angle AA1 of the drive shaft due to the forward motion of the drive portion is the rotation angle of the first one-way clutch generated by the forward motion of the drive portion. A3, the rotation angle AA2 of the drive shaft generated by the reversing operation of the driving part is the rotation angle A4 of the second one-way clutch generated by the reversing operation of the driving part.

As mentioned above, in the second state, the overrun phenomenon of the drive shaft caused by the first one-way clutch (refer to the previous item [IX]-2) will not occur in the first state. The overrun phenomenon of the drive shaft caused by the clutch and the second one-way clutch, thus, the rotational speed of the drive shaft in the first state and the rotational speed of the drive shaft in the second state are not in a 2:1 relationship, However, it is considered to have a relationship of, for example, 2:1.2 (it is considered that when the rotation speed of the drive shaft is changed in the first state and the second state to change the sending amount of the sending part, the driving shaft in the first state The changing range of the rotation speed (the changing range of the delivery amount) and the changing range of the rotation speed of the drive shaft in the second state (the changing range of the delivery amount) deviate).

For example, as shown in FIG. 22, in the first state, it is considered that if the rotation angle A3 of the first one-way clutch generated by the forward motion of the drive part is "5", then the rotation angle A3 of the drive shaft generated by the forward motion of the drive part The rotation angle AA1 is also "5", and if the rotation angle A4 of the second one-way clutch generated by the backtracking action of the drive part is "5", the rotation angle AA2 of the drive shaft generated by the backtracking action of the drive part is also "5". Accordingly, the total of the rotation angle AA1 and the rotation angle AA2 is "10".

On the other hand, for example, as shown in FIG. 22, in the second state, it is considered that if the rotation angle A3 of the first one-way clutch generated by the forward motion of the drive part is "5", then the rotation angle A3 of the first one-way clutch generated by the forward motion of the drive part is considered to be "5". The rotation angle AA1 of the drive shaft is "6" due to the overrun phenomenon of the drive shaft.

Therefore, the rotation speed of the drive shaft in the first state (rotation angle AA1+rotation angle AA2=10) and the rotation speed of the drive shaft in the second state (rotation angle AA1=6) are not in a 2:1 relationship.

[IX]-4

For the states described in the preceding item [IX]-1, 2, and 3, in the ninth feature of the present invention, the rotation angle of the first one-way clutch generated by the forward movement of the driving part is set to be higher than that of the driving part. The rotation angle of the second one-way clutch generated by the reciprocating operation is small.

For example, as shown in FIG. 23, the rotation angle A3 of the first one-way clutch generated by the forward motion of the drive part is set to "4", and the rotation angle A3 of the second one-way clutch generated by the reverse motion of the drive part A4 is set to "6".

For example, as shown in FIG. 23, in the first state, it is considered that if the rotation angle A3 of the first one-way clutch generated by the forward motion of the drive part is "4", the rotation angle A3 of the drive shaft generated by the forward motion of the drive part The rotation angle AA1 is also "4", and if the rotation angle A4 of the second one-way clutch generated by the backtracking action of the drive part is "6", the rotation angle AA2 of the drive shaft generated by the backtracking action of the drive part is also "6". Accordingly, the total of the rotation angle AA1 and the rotation angle AA2 is "10".

On the other hand, for example, as shown in FIG. 23 , in the second state, it is considered that if the rotation angle A3 of the first one-way clutch generated by the forward motion of the drive part is "4", then the rotation angle A3 of the first one-way clutch generated by the forward motion of the drive part is considered to be "4". The rotation angle AA1 of the drive shaft is "5" due to the overrun phenomenon of the drive shaft.

Thus, the rotational speed of the drive shaft in the first state (rotation angle AA1+rotation angle AA2=10) and the rotational speed of the drive shaft in the second state (rotation angle AA1=5) can be set in a 2:1 relationship. .

If, in the case where it is configured to change the rotational speed of the drive shaft in the first state and the second state so as to change the delivery amount of the delivery unit, the range of change of the rotational speed of the drive shaft in the first state (the change of the delivery amount) can be made range) is the same as the change range of the rotation speed of the drive shaft in the second state (the change range of the delivery amount).

[X]

(constitute)

A tenth aspect of the present invention is configured as follows in any one of the agricultural material supply devices according to the second to ninth aspects of the present invention.

A third one-way clutch is provided which allows the drive shaft to rotate in the predetermined direction and which prevents the drive shaft from rotating in a direction opposite to the predetermined direction.

(Function and Effect of Invention)

[X]-1

For example, when the driving part reaches the end point of the outward movement, and then starts to perform the return movement in the opposite direction, the state in which the driving shaft is rotated in the prescribed direction by the first one-way clutch ends when the driving part reaches the end point of the outward movement, Then, when the drive part starts to perform the return operation, it is switched to a state where the drive shaft is rotationally driven by the second one-way clutch in a predetermined direction. When the drive unit starts the return operation, the first one-way clutch is rotationally driven in a direction opposite to the predetermined direction, and the first one-way clutch idles with respect to the drive shaft.

In the aforementioned state, when the driving part starts to perform the reversing operation, if the driving shaft is rotated and driven by the second one-way clutch in a predetermined direction, it will be slightly affected by the small mechanical backlash etc. inherent in the second one-way clutch. Slowly, the first one-way clutch is rotationally driven in the direction opposite to the predetermined direction, and the drive shaft sometimes rotates with the first one-way clutch, whereby the drive shaft is slightly rotationally driven in the opposite direction to the predetermined direction.

The aforementioned state is the same even when the driving part reaches the end point of the reciprocating action and then starts to carry out the outward action in the opposite direction. The direction opposite to the prescribed direction is slightly driven rotationally.

[X]-2

According to the tenth feature of the present invention, a third one-way clutch is provided separately from the first one-way clutch and the second one-way clutch, the third one-way clutch allows the drive shaft to rotate in a predetermined direction, and the third one-way clutch Prevents the drive shaft from rotating in the opposite direction from the specified direction.

Thus, as described in the previous item [X]-1, when the drive unit reaches the end point of the forward movement and then starts to perform the return movement in the opposite direction (when the drive unit reaches the end point of the return movement and then starts to perform the opposite direction In the case of the outward movement), when the drive unit starts to perform the return movement (outward movement), the drive shaft rotates with the first one-way clutch (second one-way clutch), if the drive shaft is slightly reversed from the specified direction Rotation drive, this state is blocked by the third one-way clutch.

Therefore, when the drive part is switched from the forward motion to the reverse motion, and when the drive part is switched from the reverse motion to the forward motion, the state in which the drive shaft is slightly rotated in the direction opposite to the prescribed direction can be prevented, and the drive shaft It is smoothly driven to rotate in a predetermined direction.

Description of drawings

Fig. 1 is an overall side view of the riding rice transplanter.

Fig. 2 is an overall plan view of the riding rice transplanter.

Fig. 3 is a rear view of the fertilization device.

Fig. 4 is a side view of a fertilization device and a supply amount changing device.

Fig. 5 is a longitudinal sectional side view of the fertilization device.

Fig. 6 is a front view of the supply amount changing device.

Fig. 7 is a longitudinal sectional front view of the supply amount changing device.

Fig. 8 is a longitudinal sectional front view of the vicinity of the clamp part in the cover member.

Fig. 9 is a longitudinal sectional front view of the vicinity of the boss portion of the cover member.

Fig. 10 is a plan view of a delivery unit and a supply amount changing device of the fertilization device.

Fig. 11 is a cross-sectional plan view of the supply amount changing device.

Fig. 12 is a schematic plan view showing the overall configuration of the fertilization device.

13 is a side view of the supply amount changing device (in the first state, the rotational speed of the drive shaft (the delivery amount of the delivery unit) is set to the high speed side (multi-side)).

14 is a side view of the supply amount changing device (in the first state, the rotational speed of the drive shaft (the delivery amount of the delivery unit) is set to the high speed side (multi-side)).

15 is a side view of the supply amount changing device (in the first state, the rotation speed of the drive shaft (the delivery amount of the delivery unit) is set to the low speed side (small side)).

16 is a side view of the supply amount changing device (in the first state, the rotational speed of the drive shaft (the delivery amount of the delivery unit) is set to the low speed side (small side)).

Figure 17 is a top view of the scale plate.

18 is a side view of the supply amount changing device (in the second state, the rotational speed of the drive shaft (the delivery amount of the delivery unit) is set to the high speed side (multiple sides)).

19 is a side view of a supply amount changing device according to another embodiment of the invention (in the first state, the rotation speed of the drive shaft (the delivery amount of the delivery unit) is set to the low speed side (small side)).

Fig. 20 is a schematic perspective view of a supply amount changing device according to a second alternative embodiment of the invention.

Fig. 21 is a schematic perspective view of a supply amount changing device according to a second alternative embodiment of the invention.

FIG. 22 is an explanatory diagram for explaining the state described in the preceding item [IX]-1, 2, and 3.

FIG. 23 is an explanatory diagram for explaining the state described in the preceding item [IX]-4 (the state of one embodiment of the present invention).

Symbol Description

12 storage department

13 sending part

37 drive shaft

41 1st one-way clutch

42 2nd one-way clutch

41a 1st one-way clutch arm

42a 2nd one-way clutch arm

43 3rd one-way clutch

46 drive unit

48 fixed part

51 1st connection part

52 Second connection part

A2 Specified scope

A3 Rotation angle of the 1st one-way clutch

A4 Rotation angle of the second one-way clutch

B1 specifies the direction

P2 support shaft core

Detailed ways

[1]

As shown in Figures 1 and 2, the ride-on rice transplanting mechanism has a connecting mechanism 3 that can swing up and down freely at the rear of the body supported by the right and left front wheels 1, and the right and left rear wheels 2, and is a six-row planting type. The rice seedling planting device 5 is supported up and down via the link mechanism 3, and has the hydraulic cylinder 4 which drives the link mechanism 3 up and down.

Next, the seedling planting device 5 will be described.

As shown in Figures 1 and 2, the seedling planting device 5 is composed of: three transmission boxes 6; a pair of rotary boxes 7 supported on the rear of the transmission box 6 freely for rotation and driving; A pair of planting arms 8 at the end; grounded floating body 9 and seedling-carrying platform 10, etc.

As shown in Figures 1 and 2, the power of the engine 17 is obtained from the hydrostatic continuously variable transmission (not shown), the inter-plant transmission (not shown), the planting clutch (not shown) shown) is delivered to the seedling planting device 5 by the PTO shaft 19. Thus, as the seedling-carrying platform 10 is driven to the left and right reciprocating lateral feed, the rotary box 7 is driven in rotation, and the planting arm 8 alternately takes out the seedlings from the bottom of the seedling-carrying platform 10 and plants them on the field surface.

[2]

Next, the fertilization device 11 (corresponding to a fertilizer supply device or an agricultural material supply device) will be described.

As shown in FIGS. 1 , 2 , 3 , and 5 , there is a rear step 33 slightly higher than the floor 32 in front of and below the driver's seat 31 on the rear side of the driver's seat 31 . The angular tubular support frame 20 is supported in the left-right direction of the body at the rear side of the driver's seat 31 above the rear step 33 , and the four delivery parts 13 are connected to the support frame 20 .

In this case, as shown in FIG. 5 and FIG. 10 , a connecting member 28 having an L-shaped cross section is prepared. There is a nut 28a. There are connecting parts 13d at the right and left end portions of the sending part 13, and by passing the two bolts 30 through the support frame 20 from the right and left connecting parts 13d of the sending part 13, inserting and tightening the nuts 28a of the connecting member 28, the The delivery unit 13 is connected to the support frame 20 .

As shown in Figures 1, 2, 3, and 5, a hopper 12 (equivalent to a storage portion) for storing powdery fertilizers (equivalent to agricultural materials) is connected to the top of the delivery portion 13, and a blower 14 is provided at the left end of the fertilization device 11. . The ground floating body 9 is connected with slotters 15 , and has eight slotters 15 , and six hoses 16 are connected between the delivery part 13 and the slotters 15 .

As mentioned above, the fertilization apparatus 11 is comprised from the hopper 12, the delivery part 13, the blower 14, the slotter 15, the hose 16, etc.

As shown in Figures 1 and 2, the inverted U-shaped handrails 34 are set at the right and left ends of the rear steps 33, and a front frame 35 and a rear frame 36 are connected between the right and left handrails 34, and the hopper 12 Located between the front frame 35 and the rear frame 36 .

As shown in FIGS. 5 and 12 , the blower 14 is driven by a motor 25 , and a branch portion 26 is connected to the blower 14 . The branch portion 26 has a shutter 26 a for switching operation of the blower 14 . A supply duct 27 is connected between the branch portion 26 and the front portion of the delivery unit 13 , and the suction portion 13 a of the delivery unit 13 is inserted into the supply duct 27 . A discharge part 13b and a shutter (not shown) for opening and closing the discharge part 13b are provided on the upper front part of the delivery part 13 , and a discharge duct 29 extending from the branch part 26 is connected to the discharge part 13b of the delivery part 13 .

The state shown in Figure 12 is the state in which the entrance of the discharge duct 29 is sealed by the gate 26a of the branch part 26, and is the working state in which the blowing air of the blower 14 is supplied to the supply duct 27 (the discharge part 13b of the delivery part 13 gates are pre-operated to the closed position).

In the working state, the air blown by the blower 14 is supplied to the delivery part 13 through the supply duct 27, and when the fertilizer is sent out from the hopper 12 by a predetermined amount by the delivery part 13, the fertilizer is supplied by the blower 14 through the hose 16. To the groover 15, through the groover 15, it is supplied to the field surface.

After the planting operation is completed, when the fertilizer remaining in the hopper 12 is recovered, as shown in Figure 12, the entrance of the supply pipe 27 is sealed by the gate 26a of the branch part 26, and the blowing air of the blower 14 is supplied to the discharge pipe. 29 state, the gate of the discharge part 13b of the delivery part 13 is operated to the open position to set the discharge state.

Thus, the fertilizer in the hopper 12 enters the discharge pipe 29 from the discharge port 13b of the delivery part 13, the blowing air of the blower 14 is supplied to the discharge pipe 29, and the fertilizer entering the discharge pipe 29 is transported and is discharged from the discharge port 29a of the discharge pipe 29. discharge.

[3]

Next, the transmission system for transmission to the fertilization device 11 will be described.

As shown in FIGS. 1 , 3 , and 12 , the power of the engine 17 is transmitted to the drive shaft 21 from a hydrostatic continuously variable transmission (not shown) and a fertilizing clutch (not shown) for traveling. The transmission shaft 22 is rotatably supported in the left-right direction of the rear right side of the fertilization device 11, and is connected to the left end (central end) of the transmission shaft 22 by the arm 21a connected to the rear end of the transmission shaft 21. A linkage rod 23 is connected between the arms 22a.

Thus, the rotational power of the propeller shaft 21 is converted into up and down reciprocating motion by the arm 21a of the propeller shaft 21 and the linkage rod 23, and is transmitted to the Transmission shaft 22.

As shown in FIGS. 1 , 2 , 3 , and 12 , the right end portion of the fertilization device 11 has a supply amount changing device 24 , and the right end portion of the transmission shaft 22 is connected to the supply amount changing device 24 . A drive shaft 37 with a hexagonal cross section is supported rotatably along the rear left and right directions of the delivery unit 13 , and the right end of the drive shaft 37 is connected to the supply amount changing device 24 .

As shown in Fig. 3 and Fig. 12, a sending roller (not shown) is housed in the sending part 13, and the sending roller sends out every prescribed amount of fertilizer along with the rotation, and there is an input connected to the sending roller on the right lateral side of the sending part 13. gear 13c.

The drive gear 37 a is attached to the drive shaft 37 so as to be relatively rotatable, and the drive gear 37 a meshes with the input gear 13 c of the delivery unit 13 . The shifting member 37b is installed to rotate integrally with the drive shaft 37 and slide freely. The shifting member 37b can slide freely between the transmission position engaged with the drive gear 37a and the cut-off position away from the drive gear 37a. A few clutches of the fertilization device 11 ( Japanese: a few bars クラッチ) is composed of a drive gear 37a and a shift member 37b.

As shown in FIGS. 3 , 5 , and 10 , three wires 38 for slidingly operating the shift member 37 b of the drive shaft 37 are arranged along the rear portion of the support frame 20 . The clamp member 39 is attached to the connection member 28 , and the wire 38 is held by the clamp member 39 so as to be placed and supported on the connection member 28 .

According to the above structure, as shown in FIG. 3 and FIG. 12 , the rotational power of the transmission shaft 21 is converted into an up and down reciprocating motion by the arm 21a of the transmission shaft 21 and the linkage rod 23, and the rotation power is converted into a vertical reciprocating motion as a predetermined angle A1 (refer to FIG. 13 and FIG. 14 ). ) within the range of reciprocating rotation is transmitted to the transmission shaft 22, and transmitted to the supply amount changing device 24.

In the supply amount changing device 24, the rotational speed of the drive shaft 37 is changed, the power of the drive shaft 37 is transmitted from the drive gear 37a to the input gear 13c of the delivery part 13, and the delivery roller is rotationally driven, so that the fertilizer is sent out from the delivery part 13. .

As shown in Figure 12 and Figure 13, in the supply amount changing device 24, when the transmission shaft 22 is reciprocatingly driven within the range of the specified angle A1, the reciprocating rotation of the transmission shaft 22 is transmitted to the single driving part 46, and the driving The portion 46 is driven to swing. The forward motion of the drive unit 46 is transmitted to the drive shaft 37 via the first one-way clutch 41, and the drive shaft 37 is rotationally driven in a predetermined direction B1. The return operation of the drive unit 46 is transmitted to the drive shaft 37 through the second one-way clutch 42, and the drive shaft 37 is rotationally driven in the predetermined direction B1.

In this case, by changing the posture of the driving part 46, and changing the transmission state of the reciprocating motion from the driving part 46 to the first one-way clutch 41 and the second one-way clutch 42, thereby changing the rotational speed of the drive shaft 37 (sending part 13 deliveries).

[4]

Next, the structure of the supply amount changing device 24 will be described.

As shown in Figures 4, 6, 7, and 10, there is a cover member 40 that bends the plate into a U-shaped cross-section, the cover member 40 is connected to the right end of the support frame 20, and the front part of the cover member 40 and the rear part is opened. The support member 47 is supported around the horizontal axis P1 of the inner surface of the right wall portion 40a of the cover member 40 so that the posture can be changed freely. The shaft core P2 (corresponding to the support shaft core) is supported so as to be able to swing freely.

As shown in FIGS. 4 , 10 , and 11 , a bracket 48 (corresponding to a fixed portion) is connected to the right end of the support frame 20 , and the right end of the transmission shaft 22 is rotatably supported by the bracket 48 . An arm 22 b is connected to the right end of the propeller shaft 22 , and a link rod 49 is connected between a boss portion 22 c of the arm 22 b of the propeller shaft 22 and a boss portion 46 a of the drive unit 46 .

In this case, the connecting rod 49 has a turnbuckle structure, and the length of the connecting rod 49 can be adjusted.

As shown in Fig. 6,7,11, at the right end portion of drive shaft 37, the 1st one-way clutch 41 is installed, and the 2nd one-way clutch 42 is installed on the right lateral side of the 1st one-way clutch 41, on the 2nd A third one-way clutch 43 is attached to the right lateral side of the one-way clutch 42 . The arm 43a of the 3rd one-way clutch 43 is connected with the support frame 20, and the 3rd one-way clutch 43 does not rotate.

In this case, the first one-way clutch 41, the second one-way clutch 42, and the third one-way clutch 43 have the function of allowing the drive shaft 37 to rotate in the predetermined direction B1 (refer to FIG. It rotates in the direction opposite to the predetermined direction B1.

6, 7, 11, and 13, the arm 41a of the first one-way clutch 41 extends obliquely forward and upward, and the arm 42a of the second one-way clutch 42 extends downward (corresponding to the arm of the first one-way clutch 41). 41a and the arm 42a of the second one-way clutch 42 are in opposite directions to each other).

As shown in FIGS. 6 , 7 , 11 , and 13 , between the sleeve portion 46 b of the drive unit 46 and the sleeve portion 41 b of the arm 41 a of the first one-way clutch 41 , a flat long plate-shaped first connecting member 51 is connected. . A round bar-shaped second connecting member 52 is connected between the boss portion 46c of the drive unit 46 and the boss portion 42b of the arm 42a of the second one-way clutch 42 .

In this case, as shown in FIGS. 11 and 13 , the drive shaft 37 and the horizontal axis P2 (the boss portion 47 a of the supporting member 47 ) are configured to be parallel. In the part on the same lower side of the drive part 46, the sleeve parts 46b, 46c are provided on the drive part 46 in a state facing opposite to each other and in a state close to each other in a side view (equivalent to a position at a distance of 100° with respect to the support shaft core P2). A state in which the first connecting member 51 and the second connecting member 52 that are close to each other are connected to the portion of the drive unit 46 on the same side).

[5]

Next, transmission from the transmission shaft 22 to the drive shaft 37 in the supply amount changing device 24 will be described.

As shown in Fig. 13 and Fig. 14 and the preceding item [3], when the transmission shaft 22 is reciprocatingly driven within the specified angle A1 (when the arm 22b of the transmission shaft 22 is driven to swing within the specified angle A1), the drive The portion 46 is driven to swing within a range of a predetermined angle A2 (corresponding to a predetermined range) corresponding to the predetermined angle A1. In this case, the predetermined angle A is a constant value.

The state shown in FIG. 13 is a state in which the driving part 46 is located at one end A21 of a predetermined angle A2, the first one-way clutch 41 (arm 41a) is located at one end A31 of the rotation angle A3 of reciprocating swing, and the second one-way clutch 41 (arm 41a) is located at one end A31 of the rotation angle A3 of the reciprocating swing. The clutch 42 (arm 42 a ) is located at one end A41 of the rotation angle A4 of the reciprocating swing.

As shown in FIGS. 13 to 14 , when the driving portion 46 swings from one end portion A21 of the predetermined angle A2 to the other end portion A22 (when the driving portion 46 performs a forward movement), the forward movement of the driving portion 46 passes through the first The first one-way clutch 41 (arm 41a) is connected to the member 51 and transmitted to the first one-way clutch 41 (arm 41a), and the first one-way clutch 41 (arm 41a) is rotationally driven in the predetermined direction B1 at a rotation angle A3, and reaches from one end A31 of the rotation angle A3. At the other end A32, the drive shaft 37 is rotationally driven in the predetermined direction B1 by the first one-way clutch 41 (arm 41a).

At the same time, as shown in FIGS. 13 to 14 , the outward movement of the driving portion 46 is transmitted to the second one-way clutch 42 (arm 42 a ) through the second connection member 52 , and the second one-way clutch 42 (arm 42 b ) The direction opposite to the predetermined direction B1 is rotationally driven by the rotation angle A4, and reaches the other end A42 from the one end A41 of the rotation angle A4.

In this way, the second one-way clutch 42 (arm 42 a ) is rotationally driven in the direction opposite to the predetermined direction B1 , but the second one-way clutch 42 (arm 42 a ) idles with respect to the drive shaft 37 .

As shown in FIGS. 14 to 13 , when the driving part 46 swings from the other end A22 of the predetermined angle A2 to the one end A21 (when the driving part 46 performs a reciprocating action), the reciprocating action of the driving part 46 The second one-way clutch 42 (arm 42a) is transmitted to the second one-way clutch 42 (arm 42a) through the second connecting member 52, and the second one-way clutch 42 (arm 42a) is rotationally driven in the predetermined direction B1 at a rotation angle A4, and the drive shaft 37 is rotated in the predetermined direction B1. The second one-way clutch 42 (arm 42a) is rotationally driven.

At the same time, as shown in FIGS. 14 to 13, the reciprocating action of the driving part 46 is transmitted to the first one-way clutch 41 (arm 41a) through the first connecting member 51, and the first one-way clutch 41 (arm 41a) It is driven to rotate at a rotation angle A3 in a direction opposite to the predetermined direction, and reaches the one end A31 from the other end A32 at the rotation angle A3.

Thus, the first one-way clutch 41 (arm 41 a ) is rotationally driven in a direction opposite to the predetermined direction B1 , but the first one-way clutch 41 (arm 41 a ) idles with respect to the drive shaft 37 .

As described above, both the forward movement and the return movement of the drive unit 46 are directly transmitted to the first one-way clutch 41 and the second one-way clutch 42, and both the forward movement and the return movement of the drive unit 46 can be efficiently performed. It is transmitted to both the first one-way clutch 41 and the second one-way clutch 42 .

As mentioned above, in the state where the driving part 46 is reciprocating, as shown in FIGS. During the swing (when the driving part 46 reaches the end point of the forward movement and then starts to perform the reverse direction of the reciprocating movement), when the driving part 46 starts to carry out the reciprocating movement, even if the drive shaft 37 is brought together by the first one-way clutch 41 By turning, the drive shaft 37 is slightly rotationally driven in the direction opposite to the predetermined direction B1, and this state is also prevented by the third one-way clutch 43 .

Same as above, as shown in Fig. 13 and Fig. 14, when the drive part 46 reaches one end A21 of the predetermined angle A2 and starts to swing to the other end A22 in the opposite direction (when the drive part 46 reaches the return action When the end point then starts to move forward in the opposite direction), when the driving part 46 starts to move forward, even if the drive shaft 37 is rotated together by the second one-way clutch 42, the drive shaft 37 moves in the direction opposite to the specified direction B1. The direction is rotated slightly, and this state is also prevented by the third one-way clutch 43 .

As shown in Figures 4, 6, and 8, on the inner surface of the right wall portion 40a of the cover member 40, a shaft sleeve portion 40g opening outward is connected, and a clip is installed on the outer surface of the right wall portion 40a of the cover member 40. Fastener 55. It has a crank-shaped manual handle 56 when viewed from the front, and the manual handle 56 includes: a handle portion 56a having an inverted L shape when viewed from the front; and a boss portion 56b having a hexagonal hole at the end.

As shown in Figures 4, 6, and 8, by inserting the shaft sleeve portion 56b of the manual handle 56 into the shaft sleeve portion 40g of the cover member 40, and making the clamping member 55 hold the handle portion 56a of the manual handle 56, the manual handle 56 is mounted on the cover member 40.

When the drive shaft 37 is rotationally driven while the engine 17 is stopped, the right end of the drive shaft 37 is inserted into the hexagon of the hub portion 56b of the manual handle 56 by detaching the manual handle 56 from the cover member 40. hole, so that the manual handle 56 can be mounted on the drive shaft 37, and the drive shaft 37 can be rotationally driven in the predetermined direction B1 by the manual handle 56.

[6]

Next, a structure in which the reciprocating motion from the drive unit 46 to the first one-way clutch 41 and the second one-way clutch 42 is changed by changing the posture of the drive unit 46 in the supply amount changing device 24 will be described. The rotational speed of the drive shaft 37 (the delivery amount of the delivery unit 13 ) is changed according to the transmission state of the operation.

As shown in FIGS. 9 and 13 , a sleeve portion 40 d is connected to the inner surface of the right wall portion 40 a of the cover member 40 , and an opening 40 e is formed on the left wall portion 40 b of the cover member 40 . The upper wall portion 40c is formed with a vertically long guide hole 40f.

As shown in FIG. 17 , a scale plate 58 made of synthetic resin is connected to the upper wall portion 40 c of the cover member 40 with screws 59 . A vertical guide hole 58c located at the same position as the guide hole 40f of the cover member 40 is formed on the scale plate 58, and the index portion 47c of the upper end portion of the supporting member 47 enters the guide hole 58c of the scale plate 58 (the cover member 40 in the guide hole 40f).

As shown in FIGS. 4 , 9 , and 13 , a sleeve member 44 is provided, and a horizontal support shaft 44 a and an annular spring seat 44 b are provided on the sleeve member 44 . The support shaft 44a of the sleeve member 44 is inserted into the sleeve portion 40d of the cover member 40, the anti-drop ring 45 is installed on the end of the support shaft 44a of the sleeve member 44, and the support shaft 44a of the sleeve member 44 is rotatably supported on The boss portion 40d of the cover member 40 .

In this case, as shown in FIGS. 9 and 13 , the sleeve member 44 is inserted into the cover member 40 from the opening 40 e of the cover member 40 , and the support shaft 44 a of the sleeve member 44 is inserted into the shaft of the cover member 40 . Inside the sleeve portion 40d.

As shown in FIGS. 9 and 13 , the operation shaft 50 having a threaded portion 50 a on its outer periphery is rotatably supported by the sleeve member 44 around its own horizontal axis core P3 , and the ring member provided at the rear end of the operation shaft 50 Between the spring 50b and the spring seat 44b of the hub member 44, a spring 53 in a compressed state is installed. The operating shaft 50 is lightly held by the friction between the ring member 50b of the operating shaft 50 and the spring 53 so as not to rotate freely, and the friction of the spring 53 can be overcome by the handle 54 for manual operation provided at the front end of the operating shaft 50. The force thereby performs a rotational operation on the operation shaft 50 .

As shown in FIGS. 7 and 13 , a boss portion 47 b is connected to the upper portion of the support member 47 , and the screw member 57 is rotatably supported by the boss portion 47 b. The threaded member 57 has a threaded hole with a threaded portion formed on its inner surface. The threaded portion 50 a of the operating shaft 50 is inserted into the threaded hole of the threaded member 57 .

As shown in FIGS. 13 and 15 , by rotating the operation shaft 50, the position of the threaded member 57 on the operation shaft 50 is changed along the operation shaft 50, thereby changing the posture of the supporting member 47, and by changing the posture of the drive unit 46 ( The position of the horizontal shaft core P2 of the support member 47), thereby changing the transmission state of the reciprocating motion of the drive part 46 to the first one-way clutch 41 and the second one-way clutch 42, thereby changing the rotational speed of the drive shaft 37 (the sending part 13 deliveries).

As shown in Figures 4, 6, and 13, the handle 54 includes: a disc-shaped base 54a connected to the front end of the operating shaft 50; an arm 54b extending radially outward from the base 54a; The horizontal axis core P4 is a rotatable handle portion 54c.

4, 6, and 13, by holding the handle portion 54c of the handle 54, the operation shaft 50 can be quickly rotated, and the rotation speed of the drive shaft 37 (the delivery amount of the delivery unit 13) can be greatly changed. By gripping the base portion 54a of the handle 54, the operation shaft 50 can be easily rotated slightly, and the rotation speed of the drive shaft 37 (the delivery amount of the delivery unit 13) can be easily fine-tuned.

[7]

Next, a state in which the rotation speed of the drive shaft 37 (the delivery amount of the delivery unit 13 ) is changed by the structure described in the aforementioned item [6] will be described.

The state shown in Fig. 13 and Fig. 14 is a state in which the rotational speed of the drive shaft 37 (the delivery amount of the delivery unit 13) is set to the high-speed side (multiple sides), and the horizontal axis center P2 of the support member 47 is located on the left side of the paper. , and close to the propeller shaft 22, the first one-way clutch 41 and the second one-way clutch 42.

In this case, the rotational speed of the drive shaft 37 (the delivery amount of the delivery unit 13 ) is brought to the high speed side (multiple sides) by the three elements [7]-1, 2, and 3 shown below.

[7]-1

"As shown in Fig. 13 and Fig. 14, since the driving part 46 becomes a laterally inclined posture with respect to the linkage rod 49 (the straight line connecting the point connecting the linkage rod 49 and the driving part 46 with the center of the horizontal axis P2, and the linkage The angle between the moving rods 49 is small), therefore, the predetermined angle A2 of the driving part 46 is large with respect to the predetermined angle A1 (a constant value) of the arm 22b of the propeller shaft 22.

[7]-2

"As shown in Fig. 13 and Fig. 14, since the straight line connecting the point connecting the first connecting member 51 and the driving part 46 to the horizontal axis core P2 becomes approximately perpendicular to the first connecting member 51, and the first connecting member 51 The arm 41a of the one-way clutch 41 is substantially perpendicular to the first connecting member 51, so the rotation angle A3 of the first one-way clutch 41 is large with respect to the predetermined angle A2 of the drive portion 46.

[7]-3

"As shown in Fig. 13 and Fig. 14, the straight line connecting the point where the second connecting member 52 is connected to the driving part 46 and the horizontal axis core P2 becomes approximately perpendicular to the second connecting member 52, and the second connecting member 52 The arm 42a of the one-way clutch 42 is substantially perpendicular to the second connecting member 52, so the rotation angle A4 of the second one-way clutch 42 is large with respect to the predetermined angle A2 of the driving part 46.

The state shown in FIGS. 15 and 16 is a state in which the rotational speed of the drive shaft 37 (the delivery amount of the delivery unit 13 ) is set to the low speed side (small side), and the horizontal axis center P2 of the support member 47 is located on the right side of the paper. , and away from the transmission shaft 22, the first one-way clutch 41 and the second one-way clutch 42.

In this case, the rotation speed of the drive shaft 37 (the delivery amount of the delivery unit 13 ) is brought to the low speed side (multiple sides) by the three elements [7]-4, 5, and 6 shown below.

[7]-4

"As shown in Fig. 15 and Fig. 16, since the driving part 46 is an upright posture relative to the linkage rod 49 (the straight line connecting the point connecting the linkage rod 49 and the driving part 46 with the horizontal axis core P2, and the linkage The angle between the moving rods 49 is large), therefore, the rotation angle A2 of the driving part 46 is small with respect to the predetermined angle A1 (a constant value) of the arm 22b of the transmission shaft 22.

[7]-5

"As shown in Fig. 15 and Fig. 16, since the point connecting the first connecting part 51 and the driving part 46 is connected with the horizontal axis core P2, the angle between the first connecting part 51 and the first connecting part 51 is greater than a right angle, and the first connecting part 51 The angle between the arm 41a of the one-way clutch 41 and the first connecting member 51 is larger than a right angle, so the rotation angle A3 of the first one-way clutch 41 is small with respect to the predetermined angle A2 of the driving part 46.

[7]-6

"As shown in Fig. 15 and Fig. 16, the angle between the second connecting part 52 and the straight line connecting the point where the second connecting part 52 is connected to the driving part 46 and the horizontal axis core P2 is greater than a right angle, therefore, relatively At the predetermined angle A2 of the drive portion 46, the rotation angle A4 of the second one-way clutch 42 is small."

[8]

Next, the state in which the rotational speed of the drive shaft 37 (the delivery amount of the delivery unit 13 ) is changed as a whole in a high-speed state (high state) or the rotation speed of the drive shaft 37 is generally changed in a low-speed state (small state) will be described. Speed (the delivery amount of the delivery unit 13).

As shown in FIG. 17 , the scale plate 58 has a first scale portion 58a on one lateral side of the guide hole 58c, and has a second scale portion 58b on the other lateral side of the guide hole 58c.

The minimum position C11 of the first scale portion 58 a of the scale plate 58 and the minimum position C21 of the second scale portion 58 b of the scale plate 58 are arranged at the same position. The ratio between the minimum position C11 of the first scale portion 58a of the scale plate 58 and the minimum position C21 of the second scale portion 58b of the scale plate 58 is 2: 1.

As shown in FIG. 17 , the maximum position C12 of the first scale portion 58 a of the scale plate 58 and the maximum position C22 of the second scale portion 58 b of the scale plate 58 are arranged at the same position. The ratio between the maximum position C12 of the first scale portion 58a of the scale plate 58 and the maximum position C22 of the second scale portion 58b of the scale plate 58 is 2: 1.

In the state described in the preceding item [6] and [7], the first connecting member 51 and the second connecting member 51 are connected to the driving part 46 and the arm 41a of the first one-way clutch 41 and the arm 42a of the second one-way clutch 42. The first state of the connection member 52 corresponds to the first scale portion 58 a of the scale plate 58 .

As shown in FIG. 18 , the second connecting member 52 is configured to be detachable from the driving portion 46 (corresponding to the fact that the connection between the driving portion 46 and the arm 42a of the second one-way clutch 42 by the second connecting member 52 is released. later state). As a result, the second connecting member 52 is detached from the drive unit 46 while being connected to the arm 42 a of the second one-way clutch 42 , and the end of the second connecting member 52 is connected to the opening 48 a of the bracket 48 . , and the second one-way clutch 42 is made into a fixed state by the second connecting member 52 . In this case, the second connection member 52 may be configured to be connected to and fixed to the right wall portion 40 a of the cover member 40 .

In the state shown in FIG. 18, since the first one-way clutch 41 is used but the second one-way clutch 42 is not used, the state of using the first one-way clutch 41 and the second one-way clutch 42 State (refer to preceding item [6], [7]), the rotational speed of drive shaft 37 (the sending amount of sending part 13) is 1/2.

In this state, the drive unit 46 and the first one-way clutch 41 are maintained connected by the first connecting member 51, and the connection between the drive unit 46 and the arm 42a of the second one-way clutch 42 by the second connecting member 52 is released. The second state corresponds to the second scale portion 58b of the scale plate 58 shown in FIG. 17 .

As described above, by connecting and disconnecting the second connecting member 52 to and from the drive unit 46 (by setting the first state and the second state), the rotation of the drive shaft 37 can be changed as a whole in a high-speed state (multiple state). The speed (the output of the sending part 13), or the rotation speed of the drive shaft 37 (the output of the sending part 13) can be changed in a low speed state (low state) as a whole.

In this case, as shown in FIGS. 3 , 4 , and 12 , the driving unit 46 , the first one-way clutch 41 and the second one-way clutch 42 , the first connecting member 51 and the second connecting member 52 are arranged on the right end of the fertilization device 11 . part, and the second connection member 52 is arranged on the lateral outer side of the fertilization device 11 with respect to the first connection member 51 . Accordingly, the operator can easily detach the second connection member 52 from the drive unit 46 without being affected by the first connection member 51 from the laterally outer side on the right side of the fertilization device 11 .

[9]

As stated in the previous item [8], when the second connecting member 52 is made into a structure that can be freely connected and released with the drive portion 46 (when setting the first state and the second state), the preceding item [IX] will occur. ]-1, 2, 3 states.

On the other hand, as shown in FIG. 13 , in the driving portion 46, the distance L1 between the point where the first connecting member 51 is connected to the driving portion 46 and the center of the horizontal axis P2 is set to be smaller than that between the second connecting member 52 and the driving portion. The distance L2 between the point where the portion 46 is connected and the horizontal axis core P2 is short.

Thus, the rotation angle A3 of the first one-way clutch 41 generated by the forward motion of the drive unit 46 is set to be smaller than the rotation angle A4 of the second one-way clutch 42 generated by the reverse motion of the drive portion 46 ( The length of the arm 41a of the first one-way clutch 41 and the length of the arm 42a of the second one-way clutch 42 are set to be the same).

Therefore, as described in the preceding item [IX]-4, the rotational speed of the drive shaft 37 in the first state and the rotational speed of the drive shaft 37 in the second state (the delivery amount of the delivery unit 13) can be made into 2: 1 relationship.

As shown in FIG. 17, in the scale plate 58, the minimum position C11 of the first scale portion 58a of the scale plate 58 and the minimum position C21 of the second scale portion 58b of the scale plate 58 can be arranged at the same position. In the minimum position C11 of the first scale portion 58a of 58, and the minimum position C21 of the second scale portion 58b of the scale plate 58, the ratio of the rotation speed of the drive shaft 37 (the delivery amount of the delivery unit 13) can be made into 2: 1.

As shown in FIG. 17, in the scale plate 58, the maximum position C12 of the first scale portion 58a of the scale plate 58 and the maximum position C22 of the second scale portion 58b of the scale plate 58 can be arranged at the same position. In the maximum position C12 of the first scale portion 58a of 58, and the maximum position C22 of the second scale portion 58b of the scale plate 58, the ratio of the rotational speed of the drive shaft 37 (the delivery amount of the delivery portion 13) can be made into 2: 1.

As shown in FIG. 17 , the scale plate 58 has a long hole 58d, and the scale plate 58 is connected to the upper wall portion 40c of the cover member 40 by screws 59 through the long hole 58d of the scale plate 58 . Thus, the position of the scale plate 58 can be finely adjusted along the guide hole 40f of the cover member 40 according to the type of fertilizer etc. so that the indicating portion 47c of the support member 47 coincides with the scale plate 58 .

[First other aspect of carrying out the invention]

In the preceding item [7], the state shown in FIG. 15 and FIG. 16 is a state in which the rotational speed of the drive shaft 37 (the delivery amount of the delivery unit 13 ) is set to the low speed side (small side).

In the state shown in FIG. 16, the first connecting member 51 is close to the dead point DP1 (horizontal shaft core P2, the point where the first connecting member 51 is connected to the driving part 46, and the first connecting member 51 is connected to the first one-way clutch. 41 arm 41a connected point (these three points are aligned on a straight line) state.

Similarly, in the state shown in FIG. 16, the second connecting member 52 is close to the dead point DP2 (horizontal axis core P2, the point where the second connecting member 52 is connected to the driving part 46, and the second connecting member 52 is connected to the second unit. The state in which the three points of the point connected to the arm 42a of the clutch 42 are aligned on a straight line).

For the aforementioned state, as shown in Fig. 19 (a) and (b), it is also possible to separate from the sleeve portion 46a in the drive portion 46 and at a position close to the sleeve portion 46c to which the second connecting member 52 is connected. It has a boss portion 46d.

As shown in Fig. 19(a) and (b), when the linkage rod 49 is connected to the sleeve part 46d of the driving part 46, the predetermined angle A2 of the driving part 46 shown in Fig. move. Thus, in a state where the rotational speed of the drive shaft 37 (the delivery amount of the delivery unit 13 ) is set to the low speed side (small side), the first connection member 51 and the second connection member 52 do not come close to the dead point DP1 , The status of DP2.

[Second other form of carrying out the invention]

20 and 21, instead of the structures shown in FIGS. 13 to 16, 18, and 21.

As shown in FIG. 20, the arm 41a of the 1st one-way clutch 41 and the arm 42a of the 2nd one-way clutch 42 extend to the same downward direction (or the same upper direction). The driving part 46 facing the up-down direction is configured to swing and drive around the horizontal axis P2 in the shape of a balance arm, and the first connecting member is connected between one end of the driving part 46 and the arm 41a of the first one-way clutch 41. 51 , the second connecting member 52 is connected between the other end of the driving portion 46 and the arm 42 a of the second one-way clutch 42 .

As shown in FIG. 20, in the driving part 46, the distance L1 between the point where the first connecting member 51 is connected to the driving part 46 and the center of the horizontal axis P2 is set to be larger than the distance L1 between the point where the second connecting member 52 and the driving part 46 are connected. The distance L2 between the point and the horizontal axis core P2 is short.

In the structure shown in FIG. 20, as shown in FIG. 21, the drive part 46 may be comprised so that it may swing and drive around the vertical axis P5 in an up-down direction.

[Third other form of carrying out the invention]

In the aforementioned specific embodiments, [the first other form of implementing the invention], [the second other form of implementing the invention], the point connecting the first connecting member 51 and the driving part 46 and the center of the horizontal axis P2 (longitudinal axis P2) may not be connected. The distance L1 between the axes P5) is set to be shorter than the distance L2 between the point where the second connecting member 52 is connected to the driving part 46 and the horizontal axis P2 (longitudinal axis P5), and the distances L1, L2 Set to the same length, and the length of the arm 41a of the first one-way clutch 41 is configured to be longer than the length of the arm 42a of the second one-way clutch 42, so that the first one-way clutch produced by the outward movement of the drive part 46 The rotation angle A3 of 41 is configured to be smaller than the rotation angle A4 of the second one-way clutch 42 caused by the return operation of the drive unit 46 .

Industrial applicability

The present invention is applicable not only to the article having the supply amount changing device at the right end of the fertilizing device, but also to the article having the supply amount changing device at the left end of the fertilizing device.

The present invention is applicable not only to the fertilization device that granular fertilizer is supplied to the field surface, but also can be applicable to the fertilization device that liquid fertilizer is supplied to the field surface (equivalent to fertilizer supply device or agricultural material supply device), rice seed (equivalent to agricultural material supply device) Material) to the direct seeding device (equivalent to the agricultural material supply device) supplied to the field surface, and the spraying device (equivalent to the agricultural material supply device) to supply granular or liquid chemicals to the field surface.

Claims (10)

1. a kind of fertilizer feedway, which is characterized in that

Have：Store the reservoir of fertilizer；The unloading part that the fertilizer of the reservoir is sent out；And the driving submitting The drive shaft in portion,

Also, have：Single driving portion, the single driving portion by being passed power prescribed limit around with the drive The parallel bearing shaft core of moving axis carries out reciprocating action, in the portion relative to the driving portion that the bearing shaft core is same side Point, it is connected with one end of the 1st connecting component close to each other and one end of the 2nd connecting component,

There is the 1st one-way clutch and the 2nd one-way clutch, and the arm of the 1st one-way clutch in the drive shaft It is configured to mutually towards on the contrary, being connected on the arm of the 1st one-way clutch described with the arm of the 2nd one-way clutch The other end of 1st connecting component is connected with the other end of the 2nd connecting component on the arm of the 2nd one-way clutch,

It is acted by the past road of the driving portion, the 1st one-way clutch is driven in rotation to prescribed direction, and the described 2nd is single It is driven in rotation to clutch to the direction opposite with the prescribed direction, prescribed direction described in the driving axial is by described The rotation driving of 1 one-way clutch,

It is acted by the multiple road of the driving portion, the 1st one-way clutch is revolved to the opposite direction with the prescribed direction Turn driving, the 2nd one-way clutch is driven in rotation to the prescribed direction, and prescribed direction is by institute described in the driving axial The rotation driving of the 2nd one-way clutch is stated,

In the state that the 2nd connecting component is connect with the arm of the 2nd one-way clutch, by unloading institute from the driving portion The 2nd connecting component is stated, to the arm of the driving portion and the 2nd one-way clutch that are carried out by the 2nd connecting component Connection be released from,

By making the 2nd connecting component unloaded from the driving portion be connect with fixed part, to the 2nd one-way clutch Device can be fixed via the 2nd connecting component,

The rotation angle of the 1st one-way clutch, is set to than the driving caused by the past road action of the driving portion The rotation angle of 2nd one-way clutch caused by the action of the roads Bu Fu is small,

With the 3rd one-way clutch, the 3rd one-way clutch allows prescribed direction described in the driving axial to rotate, and should The direction that 3rd one-way clutch prevents the driving axial opposite with the prescribed direction rotates.

2. a kind of material used for agriculture feedway, which is characterized in that

Have：Store the reservoir of material used for agriculture；The unloading part that the material used for agriculture of the reservoir is sent out；And it drives The drive shaft of the unloading part is moved,

Also, have：Single driving portion, the single driving portion are carried out in prescribed limit toward double action by being passed power Make, in the drive shaft have the 1st one-way clutch and the 2nd one-way clutch, the driving portion and the described 1st unidirectionally from It is connected with the 1st connecting component between the arm of clutch, is connected between the driving portion and the arm of the 2nd one-way clutch 2 connecting components,

It is acted by the past road of the driving portion, the 1st one-way clutch is driven in rotation to prescribed direction, and the described 2nd is single It is driven in rotation to clutch to the direction opposite with the prescribed direction, prescribed direction described in the driving axial is by described The rotation driving of 1 one-way clutch,

It is acted by the multiple road of the driving portion, the 1st one-way clutch is revolved to the direction opposite with the prescribed direction Turn driving, the 2nd one-way clutch is driven in rotation to the prescribed direction, and prescribed direction is by institute described in the driving axial State the rotation driving of the 2nd one-way clutch.

3. material used for agriculture feedway as claimed in claim 2, which is characterized in that the arm of the 1st one-way clutch and institute State the 2nd one-way clutch arm be configured to mutually towards on the contrary,

It is connected with the 1st connecting component between the driving portion and the arm of the 1st one-way clutch, in the driving portion and institute It states and is connected with the 2nd connecting component between the arm of the 2nd one-way clutch.

4. material used for agriculture feedway as claimed in claim 3, which is characterized in that the driving portion is being provided around bearing shaft core Range carries out reciprocating action,

In the part relative to the driving portion that the bearing shaft core is same side, it is connected with close to each other the described 1st and connects Relay part and the 2nd connecting component.

5. material used for agriculture feedway as claimed in claim 4, which is characterized in that the drive shaft is set with the bearing shaft core Determine at parallel.

6. the material used for agriculture feedway as described in any one of claim 2~5, which is characterized in that can release and pass through institute State the connection of the driving portion of the 2nd connecting component progress and the arm of the 2nd one-way clutch.

7. material used for agriculture feedway as claimed in claim 6, which is characterized in that in the 2nd connecting component and the described 2nd By unloading the 2nd connecting component from the driving portion in the state of the arm connection of one-way clutch, to pass through the described 2nd The connection of the arm of the driving portion and the 2nd one-way clutch that connecting component carries out is released from,

By making the 2nd connecting component unloaded from the driving portion be connect with fixed part, to the 2nd one-way clutch Device can be fixed via the 2nd connecting component.

8. material used for agriculture feedway as claimed in claim 6, which is characterized in that on the right side or a left side of material used for agriculture feedway End has the driving portion, the 1st one-way clutch and the 2nd one-way clutch, the 1st connecting component and described 2nd connecting component,

2nd connecting component is configured to be located at the lateral outer side of material used for agriculture feedway relative to the 1st connecting component 's.

9. material used for agriculture feedway as claimed in claim 6, which is characterized in that the driving portion toward road act produced by The 1st one-way clutch rotation angle, be set to more unidirectional than the caused by the action of the multiple road of the driving portion the described 2nd The rotation angle of clutch is small.

10. material used for agriculture feedway as claimed in claim 2, which is characterized in that there is the 3rd one-way clutch, the 3rd is single Prescribed direction described in the driving axial is allowed to rotate to clutch, and the 3rd one-way clutch prevents the driving axial The direction opposite with the prescribed direction rotates.