JPH0599798A - Traveling experiment truck of endless belt - Google Patents

Abstract

PURPOSE:To obtain traveling experiment data of an endless belt device on a traveling experiment truck and a highly accurate vibration data where a development efficiency is improved drastically without any need for performing a road-surface traveling experiment of a loaded vehicle. CONSTITUTION:At the time of traveling experiment of an endless belt device, a this device is placed on a viscous and elastic belt 2 and then this belt 2 is circulated and moved by a drive device, while a traveling experiment of the endless belt device simulated by enabling the endless belt device to travel in an opposite direction from a traveling direction of this viscous and elastic belt 2. At this time, the weight of the endless belt device is transmitted to a traveling truck 1 through a roller 2c1 and a rail 1g and is supported by the traveling truck 1. Also, a bolt 6b of a stretcher unit 6 is rotated, a bearing 6a is traveled in the forward and backward directions, the tension of the viscous and elastic belt 2 is adjusted, and then the bolt 6b is fixed by a rotation lock 6c after adjustment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a running test bench for an endless track device such as a hydraulic shovel or a heavy load carrying machine.

[0002]

2. Description of the Related Art Conventionally, when running an infinite track device,
Run the actual vehicle on the ground or on the surface of the concrete road,
I am trying to obtain driving experiment data.

[0003]

Conventionally, as described above, since an actual vehicle is run on the ground or on a continuous road surface to carry out a running test of an endless track device, many running test data are obtained. It takes time to reduce the development efficiency of the infinite track device. In addition, when an actual vehicle is run on the ground and a running test is performed, the running state changes depending on the soil type, hardness, water content, and the like. For example, when focusing on running vibration, the state of the ground changes depending on the measurement date and the measurement time. Therefore, there is a problem that it is difficult to obtain highly accurate vibration data.

Further, when an actual vehicle is run on a concrete road surface and a running test is conducted, unlike the case of running on the ground, the crawler belt does not sink, so that there is a problem that vibration data generated by sinking cannot be obtained. there were. The present invention is proposed in view of the above-mentioned problems, and the object thereof is to obtain running test data of an infinite track device on a running test bench, and it is not necessary to perform a road running test of an actual vehicle. Development efficiency can be significantly improved. Another point is to provide a running test stand for an infinite track device that can obtain highly accurate vibration data.

[0005]

In order to achieve the above-mentioned object, the running laboratory table of the endless track apparatus of the present invention has a viscoelastic band formed by attaching a supporting rod and a viscoelastic piece to a conveyor with an attachment. , A rail that supports the weight of an infinite track device placed on the viscoelastic band, a sprocket that circulates the viscoelastic band, and a stretcher unit that adjusts the tension of the viscoelastic band are used as a traveling platform. It is installed.

[0006]

The running test stand of the infinite track device of the present invention is constructed as described above. During the running test of the infinite track device, the infinite track device is placed on the viscoelastic band, and then the viscoelastic band is driven by the driving device. The infinite track device is run in the opposite direction with respect to the moving direction of the viscoelastic band, and a running test of the infinite track device is simulated. It is transmitted to the traveling table via the rollers and rails of the belt and is supported by the traveling table. Further, the bolt of the stretcher unit is rotated to move the bearing in the front-rear direction to adjust the tension of the viscoelastic band, and after the adjustment, the bolt is fixed by turning.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The running test bench of the endless track apparatus of the present invention will be described below with reference to an embodiment shown in FIGS. 1 to 3. 1 in FIGS. 1 and 2 is a running bench, and this running bench 1 is a lower plate. 1a and upper plate 1b
And side plates 1c, 1c for supporting both left and right sides of the same plate 1b.
When the space formed between the reinforcing ribs 1d of the side plates 1c, the bearing 1e attached to the front end portion 1c ₁ of the respective side plates 1c, the front end portion 1c ₁ of the respective side plates 1c vertical plate 1a, and 1b The part 1f and the upper plate 1b are laid in parallel in the front-rear direction 3
It is composed of a strip rail 1g.

Reference numeral 2 in FIG. 3 is a viscoelastic band.
Is a large number of viscoelastic pieces 2a, a large number of support rods 2b attached to each viscoelastic piece 2a, a three-row (or two-row) attachment conveyor 2c that connects the respective support rods 2b, and the same. It is composed of the roller 2c _{1 of the} conveyor 2c with an attachment. 2d is a collar, 2e is a washer, 6a is a bolt for fixing each viscoelastic piece 2a and each support rod 2b through the collar 2d and the washer 2e,
6b is a bolt for fixing the conveyor 2c with an attachment and each support rod 2b.

In FIG. 2, 3c is a drive shaft, 3a and 3a are drive sprockets fixed to both ends of the drive shaft 3c, and 3b is an intermediate portion of the drive shaft 3c, and the conveyor 2 with an attachment is provided.
3 mounted to correspond to c (or two) in the drive sprocket of the both end portions of the drive shaft 3c is rotatably supported by a bearing 1e attached to the front end portion 1c ₁ of the respective side plates 1c.

In FIG. 2, 4b is a driven shaft and 4a is a driven shaft 4b.
3 (or 2) driven sprockets attached to the intermediate portion of the corresponding to the conveyor with attachment 2c, 6
Is a stretcher unit attached to the rear end portion 1c ₂ of each side plate 1c. The stretcher unit 6 includes a bearing 6a, a bolt 6b for moving the bearing 6a in the front-rear direction, and a bolt 6b. The driven shaft 4b is rotatably supported by the bearings 6a of the left and right stretcher units 6 at both ends thereof.

Next, the operation of the running test bench of the endless track device shown in FIGS. 1 to 3 will be specifically described. During the running test of the endless track device, the endless track device is placed on the viscoelastic band 2, and then the drive device (not shown) rotates the drive sprocket 3a, the drive shaft 3c, and each drive sprocket 3b to move each of them. The viscoelastic band 2 including the viscoelastic piece 2a, each support rod 2b, and the conveyor with an attachment 2c is circularly moved, while the infinite track device is run in the opposite direction with respect to the viscoelastic band 2 to run the infinite track device. Simulate an experiment.

At this time, the weight of the endless track device is transmitted to the traveling base 1 via the roller 2c ₁ of the viscoelastic belt 2 and the rail 1g, and is supported by the traveling base 1. Further, the bolt 6b of the stretcher unit 6 is rotated, the bearing 6a is moved in the front-rear direction, the tension of the viscoelastic band 2 is adjusted, and after the adjustment, the bolt 6b is fixed by the rotation stopper 6c.

[0013]

As described above, in the running test stand of the infinite crawler belt device of the present invention, during the running test of the infinite crawler belt device, the infinite crawler belt device is placed on the viscoelastic belt, and then the viscoelastic belt is circulated by the driving device. On the other hand, the infinite track device is run in the opposite direction to the moving direction of this viscoelastic band, and the running test of the infinite track device is simulated. Therefore, the development efficiency can be greatly improved without the need to carry out the road test of the actual vehicle.

During the above-mentioned running experiment, the weight of the endless track device is transmitted to the running table via the rollers and rails of the viscoelastic band and supported by the running table. In addition, the tension of the viscoelastic band is adjusted by rotating the bolts of the stretcher unit and moving the bearing in the front-rear direction. Vibration data can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a running test stand of an infinite track device of the present invention.

FIG. 2 is an exploded perspective view of the running test bench.

FIG. 3 is a vertical cross-sectional front view showing details of a viscoelastic band of the running test bench.

[Explanation of symbols]

1 traveling platform 1g rail 2 viscoelastic band 2a viscoelastic piece 2b support rod 2c conveyor with attachment 2c ₁ roller 3b drive sprocket 4a driven sprocket 6 stretcher unit

Claims (1)

[Claims] 1. A rail for supporting a weight of an endless track device placed on a viscoelastic band by attaching a support rod and a viscoelastic piece to a conveyor with an attachment, and the viscoelastic band. An infinite track device running test bench, in which a sprocket that circulates and moves and a stretcher unit that adjusts the tension of the same viscoelastic band are attached to the running platform.