Height adjusting device and method of crawler-type chassis

Abstract

The invention relates to the field of transportation machines, and aims to provide a height adjusting device and method of a crawler-type chassis. The device comprises two sets of driving wheels and driven wheels, an outer driving rod is arranged on a wheel shaft of each driving wheel, an inner driving rod is arranged on a wheel shaft of each driven wheel, and the ends of the outer driving rods and the ends of the inner driving rods are fixedly provided with gears and connected through transmission gears; the ends of piston rods on the two sides of a hydraulic cylinder are meshed with the gears at the ends of the outer driving rods through racks, so that the included angles between the outer driving rods and the inner driving rods are changed. On the premise that the chassis is good in complex terrain trafficability, the principle that the hydraulic cylinder, the racks and gear sets rotate reversely is used, the hydraulic cylinder controls rotation and locking states of the four driving rods, the production cost is effectively reduced, and the structural design is simplified. The whole mechanism occupies small space of the chassis, the structure is compact, and multiple functions of height adjusting, shock absorbing, crawler-type chassis tensioning, chassis state locking and the like are achieved.

Description

technical field [0001] The invention relates to a height adjustment device and method of a crawler chassis, belonging to the field of transportation machinery. Background technique [0002] Crawler chassis is widely used in construction machinery, agricultural machinery and transmission machinery because of its low ground pressure. Due to the relatively heavy structure of the tracked chassis, in order to pursue stability in the design, the height center of gravity of the chassis is designed to be low, and the general type of chassis will be limited by the platform on which the chassis is mounted. For agricultural machinery and transmission machinery, due to the complex terrain of farmland and storage yards, the poor height adjustment of the chassis affects its passability. [0003] Under the current technical conditions, due to the non-foldability of the crawler chassis, no height-adjustable chassis machinery has yet appeared. The commonly used method is that each type of m...

AI Technical Summary

Problems solved by technology

Due to the relatively heavy structure of the crawler chassis, in order to pursue stability in the design, the height center of gravity of the chassis is designed to be low, and the general type of chassis will be limited by the platform on which the chassis is mounted.

For agricultural machinery and transmission machinery, due to the complex terrain of farmland and storage yards, the poor height adjustment of the chassis affects its passability

[0003] Under the current technical conditions, due to the non-foldability of the crawler chassis, no height-adjustable chassis machinery has yet appeared. The commonly used method is that each type of mechanical equipment corresponds to a type of crawler chassis, which leads to the crawler chassis. less commonality, which will increase the production cost of the tracked chassis

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