JP3028923B2 - Running wheel mounting device for tilling rotor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to mounting a tilling rotor on a rotating shaft projecting to the left and right sides from the lower end of a transmission case of a walking type cultivator, and attaching / detaching a traveling wheel to the outside of the tilling rotor. The present invention relates to a device for attaching a traveling wheel to a tilling rotor as described above.

[0002]

2. Description of the Related Art Conventionally, a walking type cultivator in which a tilling rotor having a tilling claw attached to the outer periphery of a tilling claw mounting body is attached to and detached from a rotating shaft projecting to the left and right sides from a lower end portion of a transmission case has been known. Are known. Various working machines are designed to be attached to and detached from the rotating shaft.For example, when traveling wheels are mounted on the rotating shaft when the cultivator is running on the road, other working machines must be removed one by one. I was

[0003]

In the above-mentioned conventional cultivator, when the tilling machine travels on the road by attaching the traveling wheels to the rotating shaft, it is necessary to remove another working machine without fail. That is, it is not possible to run the cultivator on the road while the work machine is attached to the rotating shaft, and therefore, the operation of attaching and detaching the working machine and the traveling wheel to and from the rotating shaft is troublesome, which requires a lot of time. There was a problem. The present invention has been made to solve the above problems.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, a rotary shaft 2 protrudes from the lower end of a transmission case 1 on both right and left sides, and the rotary shaft 2 has a side hexagonal tilling. Tilling boiler with a tillage claw 6 attached to the outer periphery of the claw mounting body 3
In the walking type cultivator equipped with the rotator 7, the cultivator claw mounting body 3 having the hexagonal side surface is provided with the cultivator claw 6 on the outer rotation center opposite to the side attached to the rotating shaft 2. The insertion hole 9 for inserting the support rod 16 protruding laterally from the center of rotation of the traveling wheel 13 having a diameter larger than the rotation radius of the traveling wheel 13 is provided, and the support rod 16 is inserted into the insertion hole 9. On the side of the traveling wheel 13, a locking rod 17 projecting substantially in parallel with the support rod 16 toward the outer peripheral position of the tilling claw mounting body 3.
The locking rod 17 is inserted into the insertion hole 20a of the locking piece 20 provided at the outer peripheral end of the tilling claw mounting body 3, and the retaining pin is inserted into the pin hole 17a provided in the locking rod 17. It is characterized in that the locking rod 17 is prevented from falling out of the locking piece 20 by inserting the insertion piece 21.

[0005]

According to the above construction, the apparatus for mounting a traveling wheel on a tilling rotor according to the present invention has the tilling rotor 7 mounted on the rotating shaft 2 projecting from the lower end of the transmission case 1 on both right and left sides.
With the support rod 16 projecting laterally from the center of rotation of the traveling wheel 13 inserted into the insertion hole 9 formed in the tilling rotor 7, the supporting rod 16 is substantially inserted into the side of the traveling wheel 13. It has a locking rod 17 projecting in parallel to the outer peripheral position of the tilling claw mounting body 3, and the locking rod 17 is inserted through a locking piece 20 provided on the outer peripheral end of the tilling claw mounting body 3. The cultivator can be mounted on the tilling rotor 3 simply by inserting the retaining pin 21 into the pin hole 17a provided on the locking rod 17 by inserting it into the hole 20a and locking the locking rod 17 with respect to the locking piece 20. The vehicle can be driven on the road with the vehicle attached. Further, the running wheel 13 can be removed from the tilling rotor 7 simply by pulling out the retaining pin 21 from the pin hole 17a, and the tilling operation can be performed immediately.

[0006]

Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. In FIG.
Reference numeral 1 denotes a transmission case of a walking type power cultivator. Rotation shafts 2 and 2 protrude from the lower end of the transmission case 1 on both left and right sides. The rotating shafts 2 and 2 have a hexagonal cross section, are provided with a locking pin insertion hole 2a, and are adapted to be mounted with various working machines. On the outer periphery of the body 3, tilling rotors 7, 7 constituted by attaching a large number of tillage claws 6 via a large number of claw attaching portions 4 and bolts / nuts 5 are detachably mounted.

As shown in FIG. 2, the tilling claw mounting body 3 is a cylinder having a long horizontal length and a hexagonal side surface. Side plates are provided inside the left and right ends of the cylinder. An insertion hole (shaft tube) is provided between the side plates 8 and 8 at the rotation center of the tilling claw mounting body portion 3 for inserting the rotation shaft 2 therebetween.
9 is fixed. In addition, on the outer peripheral surface of the tilling claw mounting body 3, an inclined portion 3 gently inclined such that the front side is low and the rear side is high with respect to the rotation direction (the direction of the arrow in FIG. 2).
a and the step portions 3b are alternately formed in the circumferential direction. The claw mounting portions 4 are evenly distributed in the length direction and the circumferential direction of the tilling claw mounting body 3 and are fixedly provided on the inclined portion 3a with the step portion 3b facing forward.

[0008] Further, with the rotary shaft 2 being fitted into the fitting hole 9 at the stepped portion 3b of the cultivating claw mounting body 3, a fitting insertion hole is formed from one side of the outer peripheral surface of the cultivating claw mounting body 3. 9 through which the lock pin 10 that passes through the lock pin insertion hole 9a of the rotary shaft 2 and the lock pin insertion hole 2a of the rotary shaft 2 and reaches the other side of the outer peripheral surface of the tilling claw mounting body 3 is inserted and supported. 11, 11a are fixedly provided. A pin hole 11b is formed in the locking pin insertion portion 11 in a direction orthogonal to the direction in which the locking pin 10 is inserted, and the pin hole 11b and the pin hole 10a formed in the locking pin 10 are prevented from falling out. By inserting the pin 12, the locking pin 1
0 is prevented from falling off.

The traveling wheel 13 according to the present invention can be attached to and detached from the outer end of the tilling rotor 7 when traveling on the road with the tilling rotor 7 mounted on the rotating shaft 2. Has become. As shown in FIG. 3, the traveling wheel 13 has a hollow mounting shaft tube 15 having a hexagonal cross section projecting from the center of the boss portion 14 in the horizontal direction. A pin hole 15a is formed in the mounting barrel 15 so that the support rod 1 is inserted into the fitting hole 9 inside the mounting barrel 15.
6. Locking rod support cylinder 1 with key-shaped locking rod 17 mounted on the outside
The support rod 16 and the locking rod support cylinder 18 are attached to the mounting shaft cylinder 15 by inserting the locking pin 19 with the fitting 8 inserted. Further, a pin hole 17a is formed in the locking rod 17.

On the other hand, a locking piece 20 having a locking rod insertion hole 20a is fixedly provided at a position facing the locking rod 17 at the outer end of the tilling claw mounting body 3 of the tilling rotor 7. ing. A pin hole 17 a is formed at the tip of the locking rod 17, and the support rod 16 and the locking rod support cylinder 1
8, the support rod 16 is inserted into the insertion hole 9, the locking rod 17 is inserted into the locking rod insertion hole 20a, and the retaining pin 21 is inserted through the pin hole 17a.
The running wheel 13 is prevented from falling out of the tilling claw mounting body 3 of the tilling rotor 7. Note that the diameter of the traveling wheel 13 is larger than the turning radius of the tilling claw 6 attached to the tilling claw attachment body 3 by the difference S.

Next, the operation of the apparatus for mounting a traveling wheel to a tilling rotor according to the present invention having the above-described structure will be described.

When the tilling rotor 7 is mounted on the rotating shaft 2 of the transmission case 1 of the power cultivator, the fitting hole 9 of the cultivating claw mounting body 3 is fitted into the rotating shaft 2 and the locking pin 10 is engaged. Inserted from the locking pin insertion portion 11, the locking pin insertion hole 9 of the fitting insertion hole 9 is inserted.
a through the lock pin insertion hole 2a of the rotating shaft 2 and the lock pin insertion portion 11a. Then, a pin hole 10a formed in the locking pin 10 is made to pass through the pin hole 11b of the locking pin insertion portion 11 so that the retaining pin 12
Is inserted, the locking pin 10 is prevented from coming off. Therefore, the tilling rotor 7 can be easily and accurately attached to the rotating shaft 2.

When removing the tilling rotor 7 from the rotating shaft 2, the retaining pin 12 is connected to the pin hole 1 of the locking pin insertion portion 11.
1b, and the locking pin 10 is inserted into the locking pin insertion portion 11,
The tillage rotor 7 can be easily removed simply by pulling out the tiller 11a.

The tilling rotor 7 rotates in the forward direction of the machine body (in the direction of the arrow in the drawing), and performs tilling work with the cultivating claws 6, 6,... As the machine body advances. The claw mounting portion 4 is uniformly distributed in the length direction and the circumferential direction of the cultivating claw mounting body 3 on the inclined portion 3a with the stepped portion 3b of the cultivating claw mounting body 3 as a front side, and is fixed. Stable tilling work is performed by reducing tilling resistance,
Further, wear of the claw mounting portion 4 and the bolt / nut 5 is reduced. In the tilling claw mounting body 3, the soil cultivated by the tilling claws 6, 6,... Is leveled while pressing and crushing the soil by the inclined portion 3a.

In the case where the cultivator is run on the road with the cultivating rotor 7 mounted on the rotating shaft 2, the cultivating rotator may be used.
The traveling wheel 13 is attached to the outer end of the table 7. At that time, with the support rod 16 and the locking rod support cylinder 18 attached to the mounting shaft cylinder 15 of the traveling wheel 13, the support rod 16 is fitted into the fitting hole 9, and the locking rod 17 is engaged with the locking piece. 20 is inserted through the locking rod insertion hole 20a, and the retaining pin 21 is inserted into the pin hole 17a.
, The traveling wheels 13 are turned by the tilling rotor 7.
Of the tilling claw mounting body 3 of the worm. In this state, since the diameter of the traveling wheel 13 is larger than the turning radius of the tilling claw 6 attached to the tilling claw attachment body 3 by the difference S, the tilling claw 6 does not contact the road surface on the road. It can run stably. Also, the tilling rotor 7
When removing the traveling wheel 13 from the
You just need to extract

[0016]

According to the device for mounting a traveling wheel on a tilling rotor according to the present invention, the cultivating rotor 7 is formed on the outer rotation center of the tilling rotor 7 while the cultivating rotor 7 is mounted on the rotating shaft 2. Utilizing the insertion hole 9, a support rod 16 protruding laterally from the center of rotation of the traveling wheel 13 is inserted into the insertion hole 9, and the side of the traveling wheel 13 is parallel to the support rod 16. The locking piece 17 provided on the outer periphery of the tilling claw mounting body 3 is provided with a locking rod 17 projecting from
In this configuration, the traveling wheel 13 can be easily attached to the cultivating rotor 7 and the cultivating rotor 7 can be connected to the rotating shaft 2 by being inserted into the insertion hole 20a of the cultivating rotor 7 to prevent the tilling rotor 7 from coming off. The tiller can be run on the road while being mounted on the road. Also, just pull out the retaining pin 21,
The traveling wheel 13 can be easily removed from the tilling rotor 7, and the tilling work can be performed by the tilling rotor 7 as it is. In this case, the retaining structure of the traveling wheel 13 attached to the tilling rotor 7 is such that the locking piece 2 is attached to the outer periphery of the body 3 at the outer peripheral position of the cultivating claw attaching body 3 having a hexagonal shape in side view.
0, and a pin hole 17a is provided in the locking rod 17 to be inserted therethrough, and the retaining pin 21 is inserted into and removed from the pin hole 17a at the outer peripheral position of the body 3, so that the retaining pin 21 is inserted. The operation and detachment operation can be performed extremely easily, and the mounting and dismounting of the traveling wheel 13 with respect to the tilling rotor 7 can be performed easily and quickly.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view in which traveling wheels are mounted on a tilling rotor according to the present invention.

FIG. 2 is an enlarged sectional view taken along the line AA of FIG.

FIG. 3 is a side view of a state where traveling wheels are mounted on a tilling rotor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transmission case 2 Rotating shaft 2a Locking pin insertion hole 3 Tilling claw mounting body 3a Inclined part 3b Step 4 Claw mounting part 5 Bolt / nut 6 Tilling claw 7 Tilling rotor 8 Side plate 9 Rotation shaft insertion hole (shaft cylinder) 9a locking pin insertion hole 10, 19 locking pin 10a pin hole 11, 11a locking pin insertion portion 11b pin hole 12, 21 retaining pin 13 running wheel 14 boss 15 mounting shaft cylinder 15a pin hole 16 support rod 17 Locking rod 17a Pin hole 18 Locking rod support cylinder 20 Locking piece 20a Locking rod insertion hole S Difference between turning radius of tilling claw and diameter of running wheel

Claims (1)

(57) [Claims] 1. A rotating shaft (2) protrudes from the lower end of the transmission case (1) on both left and right sides.
Tilling b cultivator fitted with nails (6) on the outer circumference of the tilling claws mounting body portion has a prismatic (3) - In the data (7) of the walk-formed by mounting the tilling machine, tilling claws fitted with the above aspect hexagonal the body portion (3), times
The outer rotating center of the side opposite to the side attached to the rotating shaft (2),
The tilling claws (6) running wheels having a diameter greater than the rotation radius (13) of the rotation center portion fitted to interpolate fitting a support rod projecting laterally (16) from insertion hole (9) provided in said fitted With the support rod (16) fitted in the hole (9),
On the side of the traveling wheel (13), the supporting rod (16) is almost
Projects parallel to the outer circumference of the tilling claw mounting body (3)
And a locking rod (17) for tilling.
Locking piece (20) provided on the outer peripheral end of the nail mounting body (3 )
Into the insertion hole (20a ) and provided on the locking rod (17).
Insert the retaining pin (21) into the pin hole (17a)
Do not lock the locking rod (17) against the locking piece (20).
Running wheel mounting device to data - tilling b, characterized in that that.