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What are the types and performance requirements of rubber crawlers

update:09-01-2021
abstract:

The rubber track is an endless belt made of Rubber Trac […]

The rubber track is an endless belt made of Rubber Tracks and metal or fiber materials. It has the characteristics of low ground pressure, high traction, low vibration, low noise, good wetland passability, no damage to the road surface, fast driving speed, and low quality. Part of the replacement tires and steel tracks are used in the walking parts of agricultural machinery, construction machinery and transportation vehicles. The rubber crawler expands the application range of crawler and wheeled walking machinery, and overcomes the constraints of various unfavorable terrains on mechanical operations. The development of rubber crawlers in my country began in the late 1980s, and mass production has been formed, with more than 20 manufacturers. In the 1990s, the quality of rubber tracks in my country was very small compared to foreign products, and it also had a certain price advantage. This article introduces the varieties, basic performance requirements, product design and production technology of rubber tracks.

According to the driving mode, the rubber track can be divided into gear type, wheel hole type and rubber tooth drive (no core gold) type. The gear-toothed rubber track is provided with a drive hole, and the drive teeth on the drive wheel are inserted into the drive hole to move the track. The wheel-hole type rubber track is provided with metal transmission teeth, which are inserted into the holes on the pulleys to engage and drive. The rubber-tooth-driven rubber crawler adopts rubber bumps instead of metal transmission parts. The inner surface of the crawler is in contact with the surface of the driving wheel for friction transmission.

According to the purpose, the rubber track can be divided into agricultural machinery rubber track, construction machinery rubber track, transportation vehicle rubber track, snow removal vehicle rubber track and military vehicle rubber track.

The basic performance requirements of the rubber track are traction, non-disengagement, shock resistance and durability. The traction of a rubber track is related to its tensile strength, shear strength, bandwidth, lateral rigidity, pitch and block height, and is also affected by road conditions and loads. Rubber crawlers with straight and side elongated spacing patterns have better traction performance.