JP2014018177A - Walking type axle management machine - Google Patents

Abstract

To provide a walking type tiller with a simple configuration and capable of easily switching between a leveling operation and a standing operation.
SOLUTION: A cultivating device 3 for cultivating soil, a resistance rod 4 for providing resistance to the propulsive force of the cultivating work behind the cultivating device 3, and a resistance rod 4 penetrating through a flat portion are pivotally attached to the cultivating device 3 The resistance bar 4 includes a wave-shaped portion 30a whose upper and lower ends are formed in a rear view wave shape and a trapezoidal portion 30b formed in a trapezoidal shape whose width is narrowed toward the tip. , And a pivot plate 30 that can be switched during a tilling operation with the wave-shaped portion 30a down and a vertical operation with the trapezoidal portion 30b down. By rotating the rotating plate 30, it is possible to easily switch between leveling work and setting work without taking time and effort. In addition, the structure for attaching the rotating plate 30 to the resistance rod 4 may be a simple structure and does not require any cost.

Description

  The present invention relates to a walking type axle management machine and belongs to the technical field of agricultural machinery.

  A walking type axle management machine is widely used as an agricultural machine having a configuration in which an axle is mounted on a transmission case extending downward from a body frame and a rotary tiller is attached to the axle to perform a tilling work. And in the walking type axle management machine described in the following patent document 1 and patent document 2, etc., a resistance rod is provided in order to give resistance to the propulsive force of tillage work.

  According to the configuration described in Patent Document 1, an attachment portion is provided on the resistance rod, and the setting device is detachably attached to the attachment portion. With this configuration, it is possible to easily attach, remove and replace the erecting device, and to equip an existing walking type axle management machine with the erecting device.

  Further, according to the configuration described in Patent Document 2, by attaching a ridger cultivator between the tilling rotor and the resistance rod, the upsetting operation can be performed while plowing with the resistance rod mounted.

JP 2012-10659 A JP 2011-147463 A

When working with these walking type axle management machines, it is necessary to level and level the traces made by the tilling claws of the tilling device in the field scene after tilling.
According to the axle management machine described in Patent Document 1 and Patent Document 2, by changing the mounting posture of the vertical stand (cultivator) at the time of tillage work, it can be in a non-use state so as not to disturb the tillage work, It is used for leveling (leveling work) with the top surface of the soil held down.

  In these configurations, it is possible to switch between leveling work and uprighting work, but this changeover is done by changing the posture after changing the positioner after removing it from the resistance rod of the axle management machine. Because it is necessary, it takes time and effort.

  In other words, in order to change the mounting posture of these uprights, after removing the uprights from the resistance bar by removing a fixture such as a bolt, it must be attached to the resistance bar (or a different member) again. This is a complicated configuration that requires many fixing parts, members, mounting holes, and the like, and is not economical.

Therefore, it is desirable to be able to switch between leveling during tillage and erection work with as simple a configuration as possible without cost, burden and effort.
An object of the present invention is to provide a walk-type field cultivator that can easily switch between leveling (leveling) work and uprighting work with a simple configuration.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention according to claim 1 includes a tilling device (3) for tilling the soil, a resistance rod (4) that provides resistance to the propulsion force of the tilling work behind the tilling device (3), and a plane portion. A corrugated portion (30a), which is pivotally attached to the penetrating resistance rod (4) and whose top and bottom ends are formed in a rear view wave shape in the forward direction of the tilling device (3), and the top and bottom ends are extended to the tip And a trapezoidal part (30b) formed in a trapezoidal shape that becomes narrower, and the trapezoidal shape and the trapezoidal shape when the corrugated part (30a) is turned down by rotating about the resistance rod (4) as a rotation axis This is a walking type axle management machine provided with a turnable plate (30) that can be switched during the erecting work with the part (30b) down.

  The invention according to claim 2 is characterized in that the resistance rod (4) extends in a substantially vertical direction with respect to the soil surface and is attached to the machine body side, and is mounted substantially horizontally from the lower end of the attachment portion (4a) It consists of a horizontal part (4b) that extends rearward and an action part (4c) that extends downward from the rear end of the horizontal part (4b) and acts on the soil. 2) is a walking type axle management machine according to claim 1.

  According to a third aspect of the present invention, the rotating plate (30) is formed of an elastic body, and the rear surface of the rotating plate (30) is arranged on both left and right sides of the rear surface of the rotating plate (30) in the forward direction of the tilling device (3). The walk type according to claim 1 or 2, further comprising: a receiving plate portion (32b) that protrudes rearward from the left and right ends of the rotating plate (30) and that is bent rearward. Axle management machine.

  According to a fourth aspect of the present invention, the rotating plate (30) is pivotally attached to the resistance bar (4) so as to assume a forward downward inclined posture in a side view toward the forward direction of the tilling device (3). The walking type axle management machine according to any one of claims 1 to 3.

  According to a fifth aspect of the present invention, there is provided a main body (32a) that is attached to the rear surface of the rotating plate (30) at a substantially central portion in the left-right direction of the rear surface of the rotating plate (30) and supports the rotating plate (30). ), The receiving plate part (32b) projecting left and right rearward from the main body part (32a), and a vertical depth measurement for projecting backward from the lower end part of the main body part (32a) during the upsetting operation The walk type axle management machine according to claim 3, further comprising a plate (32) comprising a grounding portion (32c).

  According to the first aspect of the present invention, the rotating plate (30) is rotated without removing the rotating plate (30) from the resistance rod (4), so that the leveling can be easily performed without taking time and effort. It is possible to switch between work (plowing work) and raising work. Further, the structure for attaching the rotating plate (30) to the resistance rod (4) may be a simple structure, and no cost is required.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the rotating plate (30) is attached by using the horizontal portion (4b) of the resistance bar (4) as the rotating shaft. It is easy to rotate the rotating plate (30) like a wheel. Therefore, it is possible to easily switch between leveling work and setting work.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the rotating plate (30) is formed of an elastic body, so that the rotating plate can be used during the uprighting work. While (30) is deformed, the soil of the farm scene after tilling can be pushed in the left-right direction to form a straw. At this time, the left and right ends of the rotating plate (30) are bent backward, but it can be prevented from further bending by hitting the receiving plate portion (32b) provided on the back surface of the rotating plate (30). Therefore, the rotating plate (30) is prevented from being bent excessively, and the uprighting work can be performed in a stable posture.

  According to the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, the rotating plate (30) is attached to the forward downward inclined posture in a side view. Therefore, the rotating plate (30) guides the soil left and right while pushing up the soil.

Even when the upright board is attached in a backward-downward-tilting posture in side view, the soil can be pushed to the left and right, but the upward movement of the soil is blocked by the board, so there is no place for the soil to go It tends to accumulate in the front.
However, in the invention described in claim 4, since the soil hitting the rotating plate (30) flows left and right while moving upward on the plate, it is easy to guide the soil to the left and right sides.

  According to the invention described in claim 5, in addition to the effect of the invention described in claim 3, the main body (32a) supporting the rotating plate (30) and the receiving plate (32b) are raised. By providing the plate (32) integrated with the depth measurement grounding portion (32c) on the back surface of the rotating plate (30), the entire structure of the rotating plate (30) is made strong, stable, Smooth erection work is possible.

1 is an overall side view of a walking type axle management machine according to an embodiment of the present invention. It is a perspective view explaining the attachment structure of the rotation board of FIG. It is a side view of the locking member of FIG.1 and FIG.2.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall side view of a walking type tiller, FIG. 2 is a perspective view illustrating the mounting structure of the rotating plate of FIG. 1, and FIG. 3 is a perspective view of FIGS. The side surface (partial cross section) figure of a locking member is shown. In addition, about the walk-type tiller of this embodiment, the front refers to the advancing direction.

  A wheel transmission case 9 as a main body has an engine base 11 on which the engine 10 is mounted on the front side, and a work implement mounting hitch 13 is detachable by inserting and removing a hitch pin (not shown) on the rear side. Has a handle frame 15 projecting toward the rear upper part, and is provided with a handle 16 at the rear end thereof. A belt 19 is hung between the input shaft 17 and the engine shaft 18 at the upper part of the wheel transmission case 9, and the transmission by the belt 19 is turned on and off by the tension pressure of the tension clutch pulley 20.

  The transmission case 9 includes a transmission device in which a chain is wound between the upper input shaft 17 and the lower drive shaft 21. The drive shaft 21 protrudes on both the left and right sides of the transmission case 9 and can travel on the road by mounting traveling wheels (not shown). However, instead of the traveling wheels, the tillage in which a number of tilling claws 1 are arranged. By attaching the shaft 23, the tillage device 3 can be configured and the soil surface can be tilled.

  Further, behind the tillage device 3, the resistance rod 4 is attached to the work implement attachment hitch 13 with the attachment pin 24. The resistance rod 4 can provide resistance to the propulsion force of the tilling work. A bumper 29 for protecting the engine 10 from obstacles is attached to the front end of the engine base 11.

  In the axle management machine of the present embodiment, a rotating plate 30 having the resistance rod 4 as a rotation axis is attached to the resistance rod 4, and the rotation plate 30 is used as a plate for setting up. . The rotating plate 30 has a top and bottom end formed into a wave shape (wave shape portion 30a) in a rear view, and a top and bottom other end formed into a trapezoidal shape (trapezoidal portion 30b) whose width is narrowed toward the tip. It is a board. The resistance bar 4 penetrates the surface of the rotating plate 30 on the wave shape portion 30a side, and the rotating plate 30 rotates about the resistance bar 4 as an axis.

  As shown in FIG. 2, a fixing plate 32 is attached to a substantially central portion in the left-right direction on the back surface of the rotating plate 30 by a fixing tool such as a pin (or a caulking tool). The resistance rod 4 is inserted into a hole 32aa provided on the shape portion 30a side).

  Further, a locking member 35 for fixing the rotating plate 30 so that the rotating plate 30 does not move during leveling work (plowing work) or uprighting work is fixed to the resistance bar 4 at the mounting position of the rotating plate 30. Yes. The lock member 35 includes a cylindrical portion 31 fixed to the outer periphery of the resistance bar 4 by welding or the like, a lock plate 37 fixed to the periphery of the cylindrical portion 31 and joined to the rotating plate 30.

  The resistance bar 4 is inserted into the hole 32aa of the fixing plate 32 until the lock plate 37 contacts the fixing plate 32, and the U-shaped protrusion (which also includes a U-shape) protrudes backward from the lock plate 37. The pin 40 is inserted into the hole 39 a of the portion 39 and the pin hole 32 ab of the fixing plate 32 via a spring 43, and the rotating plate 30 is fixed to the resistance rod 4 by a member such as a ring 41.

During the uprighting work, a trapezoidal bowl is formed by moving the trapezoidal portion 30b of the rotating plate 30 downward and proceeding in that state.
On the other hand, at the time of tillage work, it is turned upside down by turning in the left-right direction so that the corrugated portion 30a is downward. At this time, since the trapezoidal portion 30b moves upward, the trapezoidal portion 30b does not interfere with the tillage work. In this way, by using the surface of the rotating plate 30 opposite to the surface on the upright side as a flat plate, the marks made by the tilling claws 1 are smoothed in the field scene after the tilling. And leveling the ground after finishing tillage. Moreover, the surface after leveling becomes a beautiful finish by making the shape of the lower end part which contacts the soil of the rotation board 30 into a wave shape.

  Switching between the tilling work and the raising work does not require the rotating plate 30 to be removed from the resistance bar 4 and replaced, and the operator pulls the pin 40 and rotates the rotating plate 30 in the direction of arrow A (or the opposite direction). By moving it, it can be done easily without taking time and effort. Further, the structure for attaching the rotating plate 30 to the resistance rod 4 may be a simple structure, and can be easily switched by inserting and removing the pin 40, so that no cost is required.

  Further, the rotating plate 30 can be removed together with the resistance bar 4 by removing the resistance bar 4 from the work machine mounting hitch 13. Even when the work machine is replaced and other work is performed, the rotating plate 30 can be removed together with the resistance rod 4, so that there is no problem in mounting the work machine.

  The resistance bar 4 extends in a direction substantially perpendicular to the soil surface and is attached to the machine body side, a horizontal portion 4b extending substantially horizontally and rearward from the lower end portion of the attachment portion 4a, and a rear end portion of the horizontal portion 4b. And an action part 4c that extends downward and acts on the soil. The rotation plate 30 is easily rotated like a wheel when the horizontal portion 4b of the resistance bar 4 is attached as a rotation axis. Therefore, it is possible to easily switch between tilling work and raising work.

Further, since the mounting portion 4a on the upper portion of the resistance bar 4 does not have the rotating plate 30 or its mounting mechanism, the resistance bar 4 can be easily detached from the machine body.
The fixed plate 32 is attached to a substantially central portion in the left-right direction on the back surface of the rotating plate 30, supports a rotating plate 30, a receiving plate portion 32 b that protrudes left and right rearward from the main body portion 32 a, It consists of a grounding portion 32c for measuring the depth of standing upright that projects backward from the lower end of the main body 32a during the standing operation.

  By forming the rotary plate 30 with an elastic body, the rotary plate 30 can be deformed during the uprighting operation, and the soil in the farm scene after tilling can be pushed in the left and right directions to form the hook. At this time, the left and right ends of the rotating plate 30 are bent to the rear side by an elastic action (shown in FIG. 1), but it can be prevented from further bending by hitting the receiving plate portion 32b of the fixed plate 32. Can be set up. For example, the rotating plate 30 may be a rubber plate (hard rubber), and the receiving plate portion 32b and the grounding portion 32c may be plate springs.

  The operator moves forward while confirming whether the ground contact portion 32c stroking the upper surface of the groove is located at the center of the groove. By using the grounding portion 32c as a depth gauge at the time of erecting, it is possible to improve the erecting work by maintaining a stable depth.

  With this configuration, the rotating plate 30 can be prevented from being bent excessively, and the uprighting work can be performed in a stable posture. Further, since the rotating plate 30 has a longitudinal direction in the vertical direction, it is easily deformed in the case of an elastic body, but is firmly fixed and supported by the main body portion 32a. Further, if the main body 32a is also a plate having a longitudinal direction in the vertical direction and the receiving plate 32b is provided at a plurality of locations in the vertical direction, excessive bending to the rear over the upper and lower sides of the rotating plate 30 can be prevented and more stable. The uprighting work becomes possible.

Further, when the rotating plate 30 is in a forward downward inclined posture in a side view, the rotating plate 30 guides the soil left and right while pushing up the soil.
Even when the upright plate is in a downward-downward-tilting posture in side view, the soil can be pushed to the left and right, but the upward movement of the soil is blocked by the plate, and the place where the soil goes is lost and it is easy to collect forward End up.

  However, by attaching the rotating plate 30 to the resistance bar 4 so as to be in a forward and downward inclined posture, the soil hitting the rotating plate 30 flows to the left and right while moving upward on the plate. Easy to guide. The cylindrical plate 31 is formed obliquely so that the lock plate 37 of the lock member 35 is in the forward downward inclined posture, and the horizontal portion 4b of the resistance bar 4 is slightly inclined downward in the downward inclined posture. Can be in a forward and downward inclined posture. Therefore, it is possible to maintain a posture suitable for the uprighting work.

Moreover, if it is set as the structure which can attach or detach with the fixing tools, such as a volt | bolt and a nut, from the resistance rod 4, without welding the cylinder part 31 to the resistance rod 4, it can change to the attitude | position suitable for the erection work each time.
Further, the fixed plate 32 provided on the back surface of the rotating plate 30 has a structure in which the main body portion 32a, the receiving plate portion 32b, and the grounding portion 32c are integrated, so that the entire structure of the rotating plate 30 becomes strong. , Stable and smooth erection work becomes possible.

  The present invention is not limited to the walking type axle management machine according to the present embodiment, but can also be used for a walking type tiller having traveling wheels.

DESCRIPTION OF SYMBOLS 1 Tillage nail 3 Tillage device 4 Resistance rod 9 Wheel transmission case 10 Engine 11 Engine base 13 Work implement mounting hitch 15 Handle frame 16 Handle 17 Input shaft 18 Engine shaft 19 Belt 20 Tension clutch pulley 21 Drive shaft 23 Tilling shaft 24 Mounting pin 29 Bumper 30 Rotating plate 31 Cylindrical portion 32 Fixed plate 35 Lock member 37 Lock plate 39 Protruding portion 40 Pin 41 Ring 43 Spring

Claims (5)

A tilling device (3) for tilling the soil;
A resistance rod (4) that provides resistance to the propulsive force of the tilling work behind the tillage device (3);
A corrugated part (30a) which is pivotally attached to the resistance rod (4) penetrating the flat part, and whose upper and lower ends are formed in a rear view wave shape toward the advancing direction of the tilling device (3), and the upper and lower ends are the leading ends. And a trapezoidal portion (30b) formed in a trapezoidal shape with a narrower left and right width, and a plowing operation with the corrugated portion (30a) down by rotating about the resistance rod (4) as a rotation axis A walking type axle management machine provided with a turnable plate (30) that can be switched at the time of erection work with the trapezoidal portion (30b) down. The resistance rod (4) extends in a direction substantially perpendicular to the soil surface and is attached to the machine body side, and a horizontal portion (4b) extending substantially horizontally and rearward from the lower end of the attachment portion (4a). And an action part (4c) that extends downward from the rear end of the horizontal part (4b) and acts on the soil,
The walking type axle management machine according to claim 1, wherein the rotating plate (30) is pivotally attached to a horizontal portion (4b) of the resistance rod (4). The rotating plate (30) is formed of an elastic body,
When the left and right ends of the rotating plate (30) are bent rearward on the left and right sides of the rear surface of the rotating plate (30) toward the forward direction of the tillage device (3) and projecting rearward from the rear surface The walk type axle management machine according to claim 1 or 2, wherein a receiving plate portion (32b) for receiving the left and right end portions is provided on the left and right ends.   The said rotation board (30) is pivotally attached to the said resistance rod (4) so that it may become a forward downward inclination attitude | position in a side view toward the advance direction of a tilling device (3), The walking type axle management machine according to any one of claims 1 to 3.   A main body portion (32a) that is attached to the rear surface of the rotating plate (30) at a substantially central portion in the left-right direction on the rear surface of the rotating plate (30) and supports the rotating plate (30), and the main body portion (32a) ) Projecting rearward and leftward and rearward from the lower end of the main body (32a) during the erection operation, and a grounding part (32c) for measuring the erection depth that projects rearward from the lower end of the main body (32a). 4. The walking type axle management machine according to claim 3, further comprising a plate (32).

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