JPS6320581Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a support device for a chain that drives each wheel of a multi-wheel drive vehicle used as a vehicle for rough terrain or a vehicle for traveling in orchards, etc. It is something.

(b) Prior Art Multi-wheel drive vehicles have been known as vehicles for traveling on rough terrain.

In such multi-wheel drive vehicles, power is transmitted through sprockets and chains within the cylindrical frame, except for the axle which is driven from the transmission case.

However, when the chain in the cylindrical frame stretches, it connects to the inner bottom of the cylindrical frame, causing abnormal wear on this part.

(c) Problems to be solved by the invention The purpose of the invention is to reduce the strength of the cylindrical frame by eliminating the need to provide a window in the cylindrical frame that receives the axle so that the chain support can be inserted from the side. This makes it easier to install, remove, and assemble the chain receiver without lowering the chain support.

Furthermore, the chain receiver inserted into the cylindrical frame is prevented from shifting sideways or rattling inside, thereby preventing noise and vibration.

(d) Means for solving the problem The purpose of the present invention is as described above, and the configuration for achieving the purpose will be explained below.

A multi-wheel axle bearing is supported on the cylindrical frame 1, and power is transmitted to each axle using a chain in the cylindrical frame 1 and a sprocket on each axle. Chain supports 6a, 6b, 6c that receive the lower surfaces of the central parts of the chains 10a, 10b, 10c on the cradle iron plate 3
is fixed, and one end of the pedestal iron plate 3 is attached to the cylindrical frame 1.
The bent piece 5a of the guide plate 5 provided inside the cylindrical frame 1 presses and fixes the other end to the bottom surface of the cylindrical frame 1 using the bent piece 4a of the guide plate 4 whose other end is fixed to the case lid 2 of the cylindrical frame 1. It is something.

(E) Embodiments and operations The purpose and structure of the present invention are as described above, and the structure and operation of the invention shown in the attached drawings will now be explained.

Fig. 1 is a front view of the multi-wheel drive transport vehicle, Fig. 2 is an overall side view, Fig. 3 is a side sectional view of a portion of the cylindrical frame, Fig. 4 is a plan sectional view, and Fig. 6 is a side sectional view of a portion of the cylindrical frame.
7 is a rear sectional view, FIG. 5 is an enlarged sectional view of the rear part of the cylindrical frame, FIG. 8 is an enlarged sectional view of the inserted state, and FIG. 9 is a perspective view of the case lid.

The configuration of a multi-wheel drive transport vehicle will be explained with reference to FIGS. 1 and 2. 13 is a cockpit, and 14 is an engine room. A loading platform 11 is rotatably supported at the rear thereof, and can be rotated by a hydraulic cylinder 12. Power is transmitted from the engine in the engine room 14 to the transmission case 15, and the axle 7
Power is transmitted to a. The axle 7a passes through the left and right cylindrical frames 1, 1, and has wheels 9 at both ends.
a, 9a are attached.

As shown in FIGS. 3 and 4, wheels 9a,
Axles 7a, 7b, 7 for 9b, 9c, 9d
c and 7d, all of which are supported by bearings on the cylindrical frame 1.

Sprockets 8a, 8b, 8c, 8d, 8e and 8f are fixed to the shafts 7a, 7b, 7c and 7d, respectively, and the chain 10a is attached to the sprocket 8.
Chain 10b is connected to sprocket 8 between a and 8b.
Chain 10c is connected to sprocket 8 between c and 8e.
It is suspended between d and 8f. These three chains 10a, 10b, 10c transmit the driving force of the axle 7a to the axles 7b, 7c, 7d.

When each chain 10a, 10b, 10c stretches after being used for a long time, it hangs down and comes into contact with the bottom of the cylindrical frame 1, causing noise and causing wear to the cylindrical frame 1.

In order to avoid this, chain receivers 6a, 6b, 6c made of wear-resistant material are installed on each chain 10a,
It is arranged below the center of 10b and 10c.

Conventionally, this was inserted through a side window and fixed with bolts from the bottom, but this reduced the strength of the cylindrical frame 1.

In the present invention, a pedestal iron plate 3 is provided, and this pedestal iron plate 3 is provided.
Chain supports 6a, 6b, and 6c are fixed thereon, and the back and forth movement of the pedestal iron plate 3 is restricted by a case lid 2.

In addition, it is necessary to prevent the pedestal iron plate 3 from springing up in the vertical direction.
It is inserted under the case lid 2 to restrict movement in the vertical direction, and the rear end is fixed by pressing the bent piece 3a of the pedestal iron plate 3 with the bent piece 4a of the guide plate 4 of the case lid 2.

Then, as shown in FIG. 8, the height b of the bent piece 4a of the guide plate 4 is made larger than the height a of the bent piece 3a of the pedestal iron plate 3, so that the pedestal iron plate 3 can be smoothly moved.
It is configured to be pressed under the guide plate 4.

The total length of the pedestal iron plate 3 is approximately the total length of the cylindrical frame when the case lid 2 is closed, and movement in the front and rear directions is also restricted by this.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, unlike conventional methods, there is no need to open windows or bolt holes on the side of the cylindrical frame to secure the chain holder, which reduces the manufacturing process for the cylindrical frame and prevents a decrease in strength. It is possible.

Second, a chain holder is fixed on a pedestal iron plate and inserted into a cylindrical frame, the tip is fixed with a guide plate, and when the rear end is closed, it is fixed to a guide plate fixed on the case lid. This made assembly and disassembly easier, and maintenance of the pedestal iron plate and chain holder became easier.

Thirdly, the chain support is fixed on the iron plate of the pedestal, so even if the chain drops, it will be caught by the chain support and will not hit the bottom of the cylindrical frame, preventing wear on this part and reducing noise. I was able to do that.

Fourth, the chain support is fixed on the iron plate of the pedestal, so the chain support is securely fixed and there is less movement, and the chain is stretched, reducing lateral slippage.
Furthermore, the fit between the sprocket and chain improves, which has the effect of eliminating noise and reducing wear on the chain and sprocket.

[Brief explanation of the drawing]

Fig. 1 is a front view of the multi-wheel drive transport vehicle, Fig. 2 is an overall side view, Fig. 3 is a side sectional view of a portion of the cylindrical frame, Fig. 4 is a plan sectional view, and Fig. 6 is a side sectional view of a portion of the cylindrical frame.
7 is a rear sectional view, FIG. 5 is an enlarged sectional view of the rear part of the cylindrical frame, FIG. 8 is an enlarged sectional view of the inserted state, and FIG. 9 is a perspective view of the case lid. 1...Cylindrical frame, 2...Case lid, 3...Steel plate, 6...Chain holder, 7...Axle, 9...Wheel, 1
0...Chain.

Claims (1)

[Scope of utility model registration request] A multi-wheel axle bearing is supported on the cylindrical frame 1, and power is transmitted to each axle using a chain in the cylindrical frame 1 and a sprocket on each axle. Chain supports 6a, 6b, 6c that receive the lower surfaces of the central parts of the chains 10a, 10b, 10c on the cradle iron plate 3
is fixed, and one end of the pedestal iron plate 3 is attached to the cylindrical frame 1.
The bent piece 5a of the guide plate 5 provided inside the cylindrical frame 1 presses and fixes the other end to the bottom surface of the cylindrical frame 1 using the bent piece 4a of the guide plate 4 whose other end is fixed to the case lid 2 of the cylindrical frame 1. A multi-wheel drive vehicle characterized by: