JPS6411242B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for tractor work in which various work machines for land preparation, harvesting, growth management, transportation, etc. can be connected to the rear of the tractor in a reliable and stable manner while enduring the reaction of the work. The construction of the machine mounting device will be described in detail as follows with reference to the accompanying drawings showing one embodiment.

Various working machines 2 for land preparation, harvesting, cultivation management, transportation, etc. are connected to the rear of the tractor 1, and the running rotation of the running wheels 3a is controlled by the running wheel parts 3 on both the left and right sides of the tractor 1. A reinforcing rod 4 is provided so as to protrude rearward in a state where it does not get in the way and remains stationary even when the traveling wheels 3a travel and rotate.
and all the links 5, 6, 7 or some of the rings 5, 6 of the three-point link type coupling mechanism a attached to the rear of the tractor 1 to connect the various types of work equipment 2 directly or to the work equipment mounting frame. This feature is characterized in that it is configured to be indirectly connected via 8.

In this embodiment, a cage-shaped connecting frame 9 is attached and fixed to the outer surface of the wheel 3b of the traveling wheel 3a of the traveling wheel section 3 with fixing bolts 10, and a pivot 11 is attached to the connecting frame 9 at a position concentric with the axle of the traveling wheel 3a. is horizontally protruding, and a bearing 12 (pillow unit) is attached to this pivot 11.
The bearing 12 is connected and fixed to the front end of the reinforcing rod 4 with a connecting bolt 13, and the running wheel 3
A reinforcing rod 4 is provided to protrude rearward in a state that does not interfere with the traveling rotation of the vehicle a and remains stationary even when traveling and rotating.

In addition, this embodiment illustrates an indirect connection in which the work equipment 2 is connected via the work equipment mounting rod 8, and in this embodiment, the left and right lower links 5 of the three-point link type connection mechanism a are connected to the left and right lower links 5. Although the above-mentioned suspension links 6 are used, it is also possible to use a single central upper link 7.

If we talk about the three-point link type coupling mechanism a here, this three-point link type coupling mechanism a is attached to most tractors 1, and consists of left and right lower links 5, a hydraulic arm 14 that swings up and down by hydraulic pressure, and an upper link. 7 and a hanging link 6 that connects the hydraulic arm 14 and the lower link 5, and is attached to various working machines 2.

In this way, the rear part of the reinforcing rod 4 is fixed to both sides of the work equipment mounting frame 8 connected to the left and right lower links 5 and the suspension link 6 of the three-point link type connection mechanism a by the connecting fixing bolts 15, and the work equipment The mounting frame 8 is connected stably, and the working machine 2 is mounted on the working machine mounting frame 8.

Conventionally, various types of work equipment have been attached and connected only by the three-point link type coupling mechanism, but
In this case, there is no problem at all as long as the weight of the work equipment is small or it is small and lightweight and does not protrude beyond the width of the tractor. The weight of the machine is extremely heavy, the reaction force is large, and if the machine is large and protrudes beyond the width of the tractor, it may be difficult to support it stably with just the three-point linkage mechanism described above. This trend is becoming more and more common, and will continue to become more so, and there is a strong demand for tractors that can be stably attached to even large and heavy working machines.

The present invention has focused on such a problem, and as described above, from both the left and right sides of the tractor 1, it is possible to move the tractor 1 toward the rear without interfering with the traveling rotation of the traveling wheels 3a, and in a state where the traveling wheels 3a remain stationary even when the traveling wheels 3a rotate. Reinforcement rod 4
This reinforcing rod 4 and all links 5, 6, 7 or some links 5, 6 of the three-point link type coupling mechanism a attached to the rear of the tractor 1 can be used to connect the various working machines 2 mentioned above. Since the work equipment 2 is configured to be connected directly or indirectly through the work equipment mounting frame 8, the work equipment 2 is also supported by the left and right reinforcing rods 4, and these reinforcing rods 4 are Since it protrudes from the wheel part 3, the load and reaction force at the center of the working machine 2 are supported by the three-point link type coupling mechanism a, and the load and reaction force at both sides are supported by the reinforcing rod 4. This means that each person will share the total load and total reaction force, and thus the work equipment 2 will be supported stably, and furthermore, early damage to the three-point linkage type connection mechanism a will be prevented. Furthermore, even if the work machine 2 is deviated to one side and protrudes, it can be supported reliably, and work vibration of the work machine 2 can also be prevented. It is extremely effective.

Furthermore, since the structure is simple, just attaching the reinforcing rod 4, it can be implemented easily and at low cost, making it even more effective.

As described above, according to the present invention, various working machines for land leveling, harvesting, growth management, transportation, etc. can be connected to the rear of a tractor reliably and stably while enduring the reaction of the work. This provides a tractor work equipment mounting device that has the following effects.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall side view, FIG. 2 is a central sectional view, and FIG.
The figure is a plan view. DESCRIPTION OF SYMBOLS 1... Tractor, 2... Working machine, 3... Running wheel part, 3a... Running wheel, 4... Reinforcement rod, 5,
6, 7... Link, 8... Work equipment mounting frame, a...
Three-point linkage mechanism.

Claims (1)

[Claims] 1. Various types of working equipment for land leveling, harvesting, cultivation management, transportation, etc. are connected to the rear of the tractor, and the running wheels on both the left and right sides of the tractor are connected in a manner that does not interfere with the running rotation of the running wheels. In addition, a reinforcing rod is provided that protrudes rearward so that the traveling wheels remain stationary even when the traveling wheels rotate, and this reinforcing rod and all or part of the links of the three-point link type coupling mechanism attached to the rear of the tractor are installed. A work equipment mounting device for a tractor, characterized in that it is configured to connect the various types of work equipment described above directly or indirectly via a work equipment mounting frame.