JPS6254441B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plow work machine, and more particularly to a plow work machine that allows easy attachment of the plow work machine to a tractor.

A plow machine is used by being attached to a tractor and used to reverse plowing to expand and soften the soil, improve water retention and water permeability, and rejuvenate the soil's strength.

To attach a plow machine to a tractor, the hitch mechanism of the tractor is used, and in actual hitting work, the lower link of the tractor is kept at an appropriate height and attached to the front of the plow machine. Normally, a person other than the tractor driver signals the tractor to go and stop while passing a pin through a pin hole in the lower link and crossshaft to connect them to each other. Therefore, in addition to the tractor driver, another worker is required to attach the work equipment.

Therefore, the present invention has been developed to allow a single person, the minimum number of personnel, to easily attach a plow work machine to a tractor.For this purpose, together with the cross shaft that a plow work machine must have, a front frame that supports this, Furthermore, the front strut is configured as a removable mounting frame independent of the structure of the plow working machine, and this mounting frame can be freely attached and removed from the plow working machine. It is something.

Furthermore, the present invention prevents the posture of the crossshaft from being inadvertently disturbed when the mounting frame is attached to or detached from the main body of the plow work machine having the bottom.
The bottom coulter is characterized by being constructed so that it is not affected by cross shaft attachment and detachment.

Hereinafter, details of the present invention will be explained with reference to the accompanying drawings. First, in the figure, reference numeral 10 indicates a plow working machine main body constituting the plow working machine. , furthermore, the main frame 11
It is composed of a rear strut 13 extending obliquely upward from the rear end to the front end. Further, at the front end of the main frame, cross-shaft attachment mechanisms 14 for attaching or detaching cross-shafts are provided at appropriate intervals in the width direction.

Further, reference numeral 20 indicates a mounting frame, and a front strut 22 is provided upright on a front frame 21. At the top of the front strut 22, a top link of the tractor and an end of the rear strut 13 are attached. A supporting mounting seat 22a is formed. A cross shaft 23 is attached to the lower side of the front frame 21 in parallel with the front frame 21, and mounting seats 24 called lugs for attaching the lower link of the tractor are provided at both ends of the cross shaft 23. The mounting seats 24 have different phases on a circle centered on the cross shaft 23 so that the plowing width can be adjusted when the plow machine is used for trenching work. In addition, the cross shaft 23 has
An arm 23a that rotates the cross shaft 23 for adjusting the plowing width is fixed, and a female thread 23b is formed at the end of the arm 23a, and a male thread formed at one end of the crank handle 25 is attached to the female thread 23b. The crank handle 25 is supported by the front frame 21 in a state where only rotation is permitted. The other end of the crank handle 25 is the handle part 2
It's becoming 5b.

The cross shaft attachment mechanism 14 first attaches to the cross frame 1 forming the front end of the main frame 11.
A pair of support plates 141 are provided at appropriate intervals on the support plates 141 for accommodating and supporting the cross shafts 23 protruding along the lower vertical surface.
It has a concave groove 142 which is opened at the lower end, and the width of the lower end is widened for guiding.
Furthermore, in order to prevent the cross shaft 23 that has fallen into the groove 142 from escaping, the support plate 141 is provided with a fall prevention plate 143 whose end is rotatably attached. A locking step 143a is formed on the upper claw piece to prevent rotation from stopping at the stopper 14.
3b. In addition, the fall prevention plate 143
A locking pawl 145 is pivotally supported on the support plate 141 to hold the drop-off prevention plate 143 in a substantially horizontal state so that the cross shaft 23 is held in the accommodation groove 144. The pawl 145 is constantly working in the direction of locking action by a tension spring 146.
By rotating the release handle 147 provided on the locking claw 145 around the pivot point, the falling-off prevention plate 14 can be removed.
3 and the locking pawl 145 can be disengaged from each other. Two cross-shaft attachment mechanisms 14 having such a configuration are formed except for the central portion of the cross frame 11a, and a pair of cross-shaft attachment mechanisms 14 is provided between the cross-shaft attachment mechanisms 14 to restrict the attachment position of the cross-shaft 23 to prevent lateral movement. Installation position regulation mechanism 15 to prevent
There is a regulating plate 151 that constitutes this mechanism 15.
A plurality of recessed grooves 152 are provided at a predetermined pitch in the recessed grooves 152, and a projection piece 153 fixed to the cross shaft 23 is inserted into the recessed grooves 152.

Furthermore, near the lower end of the mounting frame 20, a coulter support arm 27 for mounting a first bottom coulter 26 protrudes toward the tractor, and the mounting frame 20 is equipped with a first bottom coulter. While holding the plow machine body 1
The structure is such that it is possible to perform attachment/detachment work for 0.

Next, the mounting state of the plow work machine according to the present invention on a tractor will be explained. Tractor T has
First, only the mounting frame 20 is mounted using three-point links, in other words, a top link and a lower link. The mounting frame 20 is connected to the plow work machine main body 10 to constitute a plow work machine, and the cross shaft 23 is inserted into the groove 142 of the support plate 141 and inserted into the accommodation groove 144 of the falling prevention plate 143. to invade. In this state, insert the cross shaft 23 deeply into the groove 142 (using the lifting force of the tractor) and remove the fall prevention plate 14.
The locking step portion 143a of No. 3 is locked with the locking claw 145. With this operation, the groove 142 and the housing groove 144 are
In other words, the cross shaft 23 is supported by the cross shaft attachment mechanism 14 in the space formed by the overlapping of the cross shafts 23 and 23.

Further, the rear strut 13 is fixed to the mounting seat 22a of the front strut 22 forming the mounting frame 20, and the plow work machine is mounted on the tractor T.

Further, the tilling width is adjusted by rotating the handle portion 24b of the crank handle 24, and by rotating the arm 23a protruding from the cross shaft 23, the position of the mounting seat 24 of the lower link at both ends of the cross shaft 23 is adjusted. Adjust.

The position of the plow working machine in the width direction with respect to the tractor T is determined at an arbitrary position by the device position regulating mechanism 15.

When connecting the mounting frame 20 mounted on a tractor to the main body of the plow work machine, this is done by running the tractor in reverse, but since the front end of the support plate 141 is slightly folded inward to form a guide 141a, the front This facilitates the frame 21 being guided between the parts supporting the crossshaft 23.

Further, since the mounting frame 20 mounted on the tractor T can maintain a constant posture regardless of the position of the center of gravity, there is no need to control the posture when connecting it to the plow work machine body. More specifically, if the tractor T is equipped with a crossshaft and is connected to a plow machine without a crossshaft, the crossshaft must be When lifted, it sometimes rotated and could not be connected to the tractor, but this situation has been prevented.

In the above explanation, the cross shaft 23 is provided with mounting seats 24 that are out of phase with each other at both ends. It may be installed in an inclined state with respect to the cross frame.

Furthermore, the first coulter 26 is attached to the frame 2.
The one that is not attached to the tractor side is shown from 0, but
If the main frame 11 has a sufficient length, it may be attached to the front side of the first bottom and rearward of the mounting frame 20.

As is clear from the above explanation, according to the plow work of the present invention, the cross shaft does not rotate even when the cross shaft is lifted when the plow work machine main body is mounted on the tractor, making the mounting work extremely easy. There are effects that can be easily achieved.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the present invention, in which Fig. 1 is an exploded side view, Fig. 2 is a front view of the same, Fig. 3 is a perspective view of the cross shaft mounting mechanism, and Fig. 4 shows the front end of the support plate. FIG. 10...Plow work machine body, 11...Main frame, 12...Bottom, 13...Rear strut, 14...Cross shaft attachment mechanism, 15...
Mounting position regulating mechanism, 141...Support plate, 142...
... Concave groove, 143 ... Fall prevention plate, 143b ... Stopper, 144 ... Accommodation groove, 145 ... Locking claw, 146 ... Tension spring, 147 ... Release handle, 20 ... Mounting frame, 21 ...Front frame, 22...Front strut, 23...
...Cross shaft, 24...Mounting seat, 25...Crank handle, 26...Coulter.

Claims (1)

[Claims] 1. A plow work machine main body having a bottom, and a mounting frame attached to the front end of the plow work machine main body and restrained by a three-point link of a tractor, wherein the plow work machine main body has a cross frame at the front end. the mounting frame has cross-shaft mounting mechanisms at appropriate intervals along the width direction of the mounting frame;
The tractor has a nearly horizontal front frame, a front strut attached to the front frame and fixing a top link and a rear strut, and a cross shaft attached to the lower part of the front frame along this. A plow work machine characterized by being configured such that it can be attached to a plow work machine main body with a mounting frame attached.