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The grounding specific pressure of the running gear of the crawler transport vehicle can be adjusted by changing the grounding length of the crawler transport vehicle and the width of the crawler transport vehicle. Large crawler transport vehicle machinery. The application of the multi-track transport vehicle traveling device on large-scale mining equipment has the following advantages: 
1. The multi-track transport vehicle traveling device can not only realize various walking movements required by mining equipment such as bucket wheel excavators in work, but also can stop at any time.

2. The support area can be easily adjusted by changing the number of crawler transport vehicles and the width, length and different combinations of the crawler transport vehicles according to the change of the equipment load, so as to adapt to the grounding specific pressure requirements that the soil can bear.

3. In the field construction, the walking device of the crawler transport vehicle has good mobility, and the requirements for the flatness and compactness of the site are low, and the adjustment of the machine position is relatively convenient.

4. It can overcome the ground slope of the mining area, and can complete normal operations on steps with a small slope.

5. It can realize the diversification of working conditions. For example, the bucket wheel excavator can work while walking, or it can be fixed at a certain working position to work according to the needs.

6. It is convenient to change the working site, and the whole machine can be easily transferred from one working face to another working face.

7. It is convenient to park, and the machine can be parked at any position of the workplace only by the friction between the crawler transport vehicle and the ground.

8. The bearing capacity is huge, and the load can be statically transmitted to the ground to avoid local overloading of machine parts and the ground.

9. The walking device of the crawler transport vehicle has good adaptability to the ground and can walk on relatively uneven ground that has been simply leveled.

10. It can easily realize the stepless speed change of the multi-track transport vehicle through electro-hydraulic control, and can realize constant speed control, instant reverse walking, etc., to ensure the frequent advance and retreat of the machine during operation.

11. It can adapt to various harsh climatic conditions and workplaces, and has good passability to various soils.