JPH0142407Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a work machine mounting structure.

Conventionally, when attaching a working machine to a traveling vehicle such as a tractor or multi-purpose transport vehicle, a generally mountain-shaped male engaging body connected to the traveling vehicle and a roughly mountain-shaped female engaging body connected to the working machine are fitted together. However, in this mounting structure, since the male and female engagement bodies each having a substantially mountain shape are fixedly connected to the working machine and the traveling vehicle, it is difficult to perform the work when the respective engagement bodies are fitted and connected. The machine is in a fixed and immovable position relative to the traveling vehicle, and even if there is a manufacturing error in the male and female engaging bodies or if the implement is tilted from side to side, the posture of the implement will always be in the left-right direction with respect to the traveling vehicle. This has the disadvantage that it is difficult to perform work smoothly with an optimal posture depending on the conditions of the field and the structure of the work machine.

In this invention, a mounting body is horizontally suspended at the tip of the lower link of a three-point linkage mechanism connected to a running vehicle, and adjustment brackets are provided at both ends of the mounting body and a pivot body located at the center of the mounting body is adjusted. A bolt insertion hole into which a pivot bolt is to be inserted is provided, and adjustment brackets are provided on the left and right sides of the base horizontal rod of the male engaging body for connecting the work equipment to the traveling vehicle, and adjustment brackets are provided in the center of the base horizontal rod. Each of the pivot brackets is provided with an adjustment hole and a bolt insertion hole through which the pivot bolt is inserted, at a position opposite to the adjustment hole and the bolt insertion hole, and at least one of the adjustment holes is provided with a bolt insertion hole or a bolt insertion hole. By forming an arc-shaped long groove centered around the bolt insertion hole so that the mounting position of the work equipment connected to the traveling vehicle can be adjusted from side to side, the tilted position of the work equipment can be adjusted normally, and the work equipment can be smoothly installed. The present invention aims to provide a work machine mounting structure that can secure work.

The embodiment of the present invention will be explained in detail based on the drawings.
A indicates a running vehicle, and B indicates a working machine. The running vehicle A has a cabin 1 on the front right side of the upper part of the body frame a, and a prime mover casing 2 on the front left side adjacent to the cabin 1. , a tiltable cargo box 3 is provided at the rear, and the front wall 2' of the motor casing 2 is set back from the front wall of the cabin 1, and a three-point link mechanism as a lifting device is installed on the front wall 2'. At the same time, front wheels 5 are installed on both sides of the front at the bottom of the fuselage frame a.
The rear wheels 6 are arranged on both sides of the rear.
The working machine B is attached to the three-point linkage mechanism 4, and the front and rear wheels 5, 6 are driven by the prime mover inside the prime mover casing 2 to drive the machine.

In addition, the work machine B has a dust 8 connected to the reaping section 7 and a female engagement body 9 in the shape of a mountain at the rear thereof, and blows up the grass etc. cut by the reaping section 7 with dust and transports it. When attached to the three-point linkage mechanism 4, the grass can be transported from the dust 8 to the cargo box 3 and stored therein.

The mounting structure of work machine B will now be explained as follows.

That is, the three-point linkage mechanism 4 pivots the base ends of the left and right lower links 10 at lower left and right positions of the front side wall 2' of the prime mover casing 2, and horizontally suspends the mounting body 11 between the tips of the left and right lower links 10. In addition, the left and right lower links 10 are configured to be able to move up and down together with the mounting body 11 by the telescopic operation of the lifting cylinder 12 interposed between the middle part of the left lower link 10 and the upper part of the front side wall 2'. The base end of the upper link 13 is pivotally supported at the upper center of the front wall 2' of the casing 2.

Adjustment brackets 14 are provided at both ends of the mounting body 11.
At the same time, a pivot body 15 is provided vertically at the lower center of the mounting body 11, and an adjustment hole 14' and a pivot bolt 16, which will be described later, are inserted into the adjustment bracket 14 and the pivot body 15, respectively. Should bolt insertion hole 1
7 is provided, and the adjustment hole 14' is a long groove in the shape of a semi-circular arc along an arc R centered on the bolt insertion hole 17.

The front part of the three-point link mechanism 4 is fitted with the female engaging body 9 to connect the working machine B to the traveling vehicle A.
A substantially mountain-shaped male engaging body 18 is provided for connection to the male engaging body 18, and a base horizontal rod 19 is connected to the lower end base of the male engaging body 18. A pivot pin 20 is horizontally suspended from the left and right lower end bases of the male engaging body 18, and connecting brackets 21 are connected to both ends of the base horizontal rod 19, and the connecting brackets 21 are pivotally supported by the pivot pins 20. By tightening, the male engaging body 18 and the base horizontal rod 19
This is what is being connected to.

The male engaging body 18 is connected to the tip of the upper link 13 with a predetermined degree of freedom, and is attached to the base horizontal rod 19.
is connected to the mounting body 11 at the tip of the lower link 10 so as to be tiltable left and right, and the base horizontal rod 19 is connected to the mounting body 11 as follows.

That is, adjustment brackets 22 are provided on the left and right sides of the upper part of the base horizontal rod 19, and a pivot bracket 23 is provided vertically at the lower center of the base horizontal rod 19. An adjustment hole 22' and a bolt insertion hole 24 through which the pivot bolt 16 is inserted are provided in the mounting body 11 at a position opposite to the adjustment hole 14' and the bolt insertion hole 17, and the adjustment hole 22' is provided with a bolt insertion hole 24 through which the pivot bolt 16 is inserted. Hole 24
It is a semi-circular arc-shaped long groove along an arc R centered at .

The tip of the pivot bolt 16 inserted into the bolt insertion hole 24 is inserted into the bolt insertion hole 17, so that the base horizontal rod 19 can be tilted left and right about the pivot bolt 16, and the adjustment holes 14', 22 ' Attach bolt nut 25 to
The structure is such that the base horizontal rod 19 is fixed at a predetermined tilting position by tightening.

It should be noted that the present invention is not limited to the above-described embodiment, and it is not necessary to form both the adjustment holes 14' and 22' into long grooves, and it is also possible to form only one of them into a long groove and the other with a simple circular bolt hole. Enough for my needs.

The embodiment of the present invention is constructed as described above, and in order to adjust the left and right tilting posture of the work machine B, the bolt nut is loosened with the work machine B not attached, and the male engaging body 18 is attached to the base. Along with the horizontal rod 19, adjustment slots 14' and 2 are provided around the pivot bolt 16.
2', and when work equipment B is installed, the male engaging body is tilted left and right to the position where work equipment B should be in the proper posture, and the bolt nut 25 is tightened to lock the male engaging body together with the base horizontal rod 19. Combine 18
is fixed at a predetermined left and right tilting position, and then the female engaging body 9, which is connected to the working machine B, is engaged with the male engaging body 18 to mount the working machine B in a proper posture.

Also, the lifting and lowering operation of work machine B is carried out by the lifting cylinder 12.
This is performed integrally with the female engaging body 9 through the vertical movement of the lower link 10 due to the expansion and contraction movement of the lower link 10.

According to the present invention, the mounting body is horizontally suspended at the tip of the lower link of the three-point linkage mechanism connected to the traveling vehicle, and the adjustment brackets provided at both ends of the mounting body and the pivot body disposed at the center of the mounting body are Adjustment holes and bolt insertion holes into which the pivot bolts are inserted are provided, respectively, and adjustment brackets are provided on the left and right sides of the base crossbar of the male engaging body to be connected to the running vehicle, and adjustment brackets are provided in the center of the base crossbar. The pivot bracket is provided with an adjustment hole and a bolt insertion hole through which the pivot bolt is inserted, at positions facing the adjustment hole and the bolt insertion hole, respectively, and at least one of the adjustment holes is provided with a bolt insertion hole or a bolt insertion hole. The arc-shaped long groove centered on the bolt insertion hole is configured so that the work equipment connected to the traveling vehicle can be mounted in a left-right tilted position, so there is no possibility of manufacturing errors in the connecting parts between the traveling vehicle and the work equipment or the work equipment. Even if there is a left-right inclination, the inclination posture of the working machine can be adjusted normally according to the working field and the structure of the working machine, and smooth work of the working machine can be ensured.

[Brief explanation of the drawing]

FIG. 1 is an overall side view of an embodiment of the present invention. FIG. 2 is a perspective view of the main parts. Figure 3 is a front view of the main parts. Figure 4 is a side view of the main part. Figure 5 is a plan view of the main part. FIG. 6 is an explanatory diagram of a state in which the working machine is installed. A: Traveling vehicle, B: Work equipment, 4: Three-point link mechanism, 10: Lower link, 11: Mounting body, 14: Adjustment bracket, 14': Adjustment hole, 15: Pivot, 17: Bolt insertion hole , 18: Male engaging body, 1
9: Base horizontal rod, 22: Adjustment bracket, 2
2': Adjustment hole, 23: Pivot bracket, 24:
Bolt insertion hole.

Claims (1)

[Scope of utility model registration request] A mounting body 11 is horizontally suspended at the tip of the lower link 10 of the three-point linkage mechanism 4 as a lifting device connected to the traveling vehicle A, and adjustment brackets 14 are provided at both ends of the mounting body 11. A pivot body 15 is provided, and the adjustment bracket 14 and the pivot body 15 are respectively provided with an adjustment hole 14' and a bolt insertion hole 17 into which a pivot bolt is inserted. Adjustment brackets 22 are also provided on the left and right sides of the base horizontal rod 19 of the approximately mountain-shaped male engagement body 18 for connection, and a pivot bracket 23 is provided at the center of the base horizontal rod 19. and the pivot bracket 23 each have an adjustment hole 1 provided in the mounting body 11 of the traveling vehicle A.
An adjustment hole 22' and a bolt insertion hole 24 into which the pivot bolt 16 is to be inserted are provided at a position opposite to the adjustment hole 4' and the bolt insertion hole 17, and both adjustment holes 14',
At least one of the holes 22' is formed as an arc-shaped long groove centered on the bolt insertion hole 17 or the bolt insertion hole 24, so that the mounting position of the work implement B connected to the traveling vehicle A can be adjusted in horizontal and horizontal inclination. Work machine mounting structure.