JP3762045B2 - Method of fixing soil adhesion prevention plate for rotary work machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides an earth adhesion preventive plate provided on the inner surfaces of the side cover portions on both the left and right sides of the shield cover, which prevents dirt from entering the back side and facilitates attachment / replacement of dirt on a rotary work machine. The present invention relates to a prevention plate fixing method.
[0002]
[Prior art]
Conventionally, the rear part of the tractor is mounted so as to be movable up and down via a three-point link hitch mechanism, and the upper part of the work rotor extending in the horizontal direction is covered with a shield cover. There is known a rotary working machine provided with a soil adhesion preventing plate made of synthetic resin for preventing soil cultivated by a work rotor from adhering.
[0003]
[Problems to be solved by the invention]
The above-mentioned conventional soil adhesion preventing plate has been fixed to the side cover part by bolts and nuts at the upper part and the lower part, respectively. For this reason, the soil cultivated by the work rotor enters the back side of the soil adhesion prevention plate especially from the top, and the soil adhesion prevention plate bulges to the work rotor side, resulting in increased friction. , Durability becomes worse. Further, when attaching or replacing the soil adhesion prevention plate, it is necessary to insert all bolts and nuts and tighten or remove them. Further, when the bolts and nuts protrude from the surface of the soil adhesion preventing plate to the working rotor side, there is a problem that a hook or the like is caught here and needs to be removed.
[0004]
The present invention prevents dirt from entering the back side of the soil adhesion preventing plate provided on the inner surfaces of the side cover portions on both the left and right sides of the shield cover, and can be easily mounted and replaced on the side cover portion. It is an object of the present invention to provide a soil adhesion preventing plate fixing method for a rotary working machine which prevents a hook or the like from being caught.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention
A. Liftably mounted via a three-point link hitch mechanism at the rear of the tractor, the upper working rotor 12 extending in the horizontal direction is covered by the shield cover 20, the left and right side plates of the shield cover 20 on the right and left sides of the shield cover 20 A rotary working machine provided with a synthetic resin soil adhesion prevention plate 27 for preventing the soil cultivated by the work rotor 12 from adhering to the inner surface of the side cover portion 26 connected via the locking plate 28 which also serves as a stopper. In 1,
The entire upper edge of the soil adhesion prevention plate 27 as pinching with the side cover portion 26 by the locking plate 28 engage, partially at the bottom of該土adhesion prevention plate 27, the side cover portion 26, a plurality of bolts are fixed by using Sarah bolts 29 having no protrusions on the surface side.
[0006]
B. A step portion 28a substantially equal to the thickness of the soil adhesion preventing plate 27 is formed at the lower end edge of the locking plate 28, and the upper edge portion of the soil adhesion preventing plate 27 is sandwiched and locked by the step portion 28a. It is characterized by that.
[0007]
[Action]
By the above means, the soil adhesion preventing plate fixing method of the rotary work machine of the present invention,
(1). The entire upper edge of the soil adhesion prevention plate is locked by being sandwiched between the side cover portions by the locking plates provided on the left and right sides of the shield cover, and the lower portion of the soil adhesion prevention plate is partially and side-mounted. By fixing a plurality of locations with the Sarabolt having no protrusions on the surface side with respect to the cover portion, the soil cultivated by the work rotor does not enter the back side of the soil adhesion preventing plate by the locking plate. Moreover, a hook etc. are not caught on a locking plate or a Sarah bolt.
[0008]
(2). At the lower edge of the locking plate, a step is formed that is almost equal to the thickness of the soil adhesion prevention plate. Attachment and removal of the anti-adhesion plate is simple and easy.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings.
1 and 2, reference numeral 1 denotes a tilling rotary having a long length in the left-right direction and having a tilling function. A front mast 2 and a lower link connecting portion 3 connected to a well-known three-point link hitch mechanism including a top link and a lower link of a tractor (not shown) are provided at a front portion of the rotary rotary 1. It is attached to the rear part of the tractor so that it can be raised and lowered. Further, power is transmitted from the PTO shaft of the tractor to the input shaft 4a protruding forward from the transmission gear box 4 provided at the front left and right center of the tillage rotary 1 via a universal joint, a transmission shaft, and the like.
[0010]
A transmission frame 6 that also serves as a main body frame and includes a transmission shaft 5 and a hollow support frame 7 extend horizontally in the left and right sides from the gear box 4. A chain transmission case 8 is suspended from the side end portion of the transmission frame 6, and a side frame 9 is suspended from the side end portion of the support frame 7 so as to face the chain transmission case 8. A rotary shaft 10 is mounted between the lower end portion of the chain transmission case 8 and the lower end portion of the side frame 9. A number of tilling claws 11 are attached to the circumference of the rotary shaft 10 to constitute a tilling rotor 12. The power transmitted to the input shaft 4a is gear-shifted in the gear box 4, and the transmission shaft 5 is rotated to rotationally drive the rotary shaft 10 via the chain transmission case 8, so that the tilling rotor 12 is moved in a predetermined direction. Rotate to cultivate.
[0011]
A pair of left and right gauge wheels 13 for adjusting the tilling depth of the tilling rotor 12 are provided on the front side of the tilling rotor 12. The gauge wheel 13 includes a wheel arm 13a that pivotally supports the gauge wheel 13 at a lower end portion of a wheel bracket 15 that is fixed so as to protrude forward from the main body frame 14, and a wheel arm 13a that is pivotally supported at the lower end portion. The core wire is inserted so as to be the same as the axial center line of the wheel arm insertion portion 15a, and pin holes 15b (two) formed in the wheel arm insertion portion 15a and a large number of pin holes 13b formed in the wheel arm 13a One is matched, and the locking pin 16 is inserted there, and the gauge wheel 13 is adjusted up and down to be fixed.
[0012]
An upper and lower operation grip 17 is provided at the upper end of the wheel arm 13a, and spring seats 18 are fixed to the lower end portion of the fixture 17a of the vertical operation grip 17 and the upper end portion of the wheel arm insertion portion 15a, respectively. A coil spring 19 as a balancer is interposed between the spring seats 18 and 18 to urge the wheel arm 13a upward.
[0013]
The upper side of the tiller rotor 12 is covered with a shield cover 20, and side covers 21 are provided at both left and right ends of the shield cover 20. A front end portion of an apron 23 is pivotally supported at the rear end portion of the shield cover 20 via a pivotal support portion 22, and side covers 23 a are also provided on both left and right side portions of the apron 23. A compression rod 24 is provided between the upper surface of the apron 23 and the main body frame, and a lock pin 25 is provided on the compression rod 24 so that the apron 23 can be locked in a state in which the apron 23 is flipped up.
[0014]
As shown in FIGS. 3 and 4, the inner surface of the side cover portion 26 (the chain transmission case 8 and the side frame) connected to the left and right sides of the shield cover 20 via the locking plates 28 that also serve as the left and right side plates of the shield cover 20. 9 is provided with a synthetic resin soil adhesion preventing plate 27 for preventing soil cultivated by the work rotor 12 from adhering. The soil adhesion preventing plate 27 is locked so that the entire upper end (edge) portion is sandwiched with respect to the side cover portion 26 by a locking member 28 that also serves as the left and right side plates of the shield cover 20. Are partially fixed to the side cover part 26 with three bolts 29 having no protrusions on the surface side.
[0015]
A step portion 28a substantially equal to the thickness of the soil adhesion preventing plate 27 is formed at the lower end edge of the locking plate 28, and the upper edge portion of the soil adhesion preventing plate 27 is sandwiched and locked by the step portion 28a. is doing.
[0016]
【The invention's effect】
As described above, according to the soil adhesion preventing plate fixing method for a rotary working machine of the present invention, the following effects can be obtained.
[0017]
(1). The entire upper edge portion of the soil adhesion preventing plate 27 is locked so as to be sandwiched between the side cover portions 26 by the locking plates 28 provided on the left and right sides of the shield cover 20, and the lower portion of the soil adhesion preventing plate 27 is fixed. Partially, the soil is cultivated by the work rotor 12 by the soil adhesion preventing plate 27 and the chain transmission case 8 or the side because the plurality of bolts are fixed to the side cover portion 26 by the Sarah bolts 29 having no protrusions on the surface side. Adhering to the inner surface of the part frame 9 is prevented, and soil is prevented from entering the back side of the soil adhesion preventing plate 27 by the locking plate 28. Further, the hook or the like is not caught on the locking plate 28 or the Sarah bolt 29.
[0018]
(2). A step portion 28a substantially equal to the thickness of the soil adhesion preventing plate 27 is formed at the lower end edge of the locking plate 28, and the upper edge portion of the soil adhesion preventing plate 27 is sandwiched and locked by the step portion 28a. It is possible to easily and easily attach and remove the soil adhesion preventing plate 27 to the cover portion 26.
[Brief description of the drawings]
FIG. 1 is a side view of an entire tillage rotary equipped with the present invention.
FIG. 2 is a plan sectional view of the main part.
FIG. 3 is a side view of a main part of the present invention.
FIG. 4 is a partial sectional view of the same.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tillage rotary 2 Top mast 3 Lower link connection part 4 Transmission gear box 4a Input shaft 5 Transmission shaft 6 Transmission frame 7 Support frame 8 Chain transmission case 9 Side frame 10 Rotary shaft 11 Claw 11
12 Tillage Rotor 13 Gauge Wheel 13a Wheel Arm 13b Pin Hole 14 Body Frame 15 Wheel Bracket 15a Wheel Arm Insertion Portion 15b Pin Hole 16 Locking Pin 17 Up / Down Operation Grip 17a Mounting Tool 18 Spring Seat 19 Coil Spring 20 Shield Cover 21 Side Part cover 22 pivot part 23 apron 23a side cover 24 compression 25 lock pin 26 side cover part 27 soil adhesion preventing plate 28 locking plate 28a step 29 sara bolt

Claims (2)

The rear of the tractor via a three-point link hitch mechanism is vertically movable mounted above the working rotor (12) extending in the horizontal direction is covered by a shield cover (20), the shield on the right and left sides of the shield cover (20) A composition for preventing soil cultivated by the work rotor (12) from adhering to the inner surface of the side cover part (26) connected via the locking plate (28) which also serves as the left and right side plates of the cover (20). In the rotary work machine (1) provided with the resin soil adhesion prevention plate (27),
Engaged as pinching the soil adhesion prevention plate the whole upper edge (27) relative to the side cover (26) by the locking plate (28), the lower portion of該土adhesion prevention plate (27) A method for fixing a soil adhesion preventing plate of a rotary working machine, wherein a plurality of parts are fixed to a side cover part (26) by a plurality of flat bolts (29) having no protrusion on the surface side.   A step portion (28a) substantially equal to the thickness of the soil adhesion preventing plate (27) is formed at the lower end edge of the locking plate (28), and the upper edge of the soil adhesion preventing plate (27) is formed by this step portion (28a). 2. The method for fixing and preventing soil adhesion of a rotary working machine according to claim 1, wherein the parts are sandwiched and locked.

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