Crawler unit

Abstract

The invention discloses a crawler unit. The crawler unit comprises a crawler, a crawler beam, a driving wheel, a fixed type supporting wheel, a floating type supporting wheel and a tensioning wheel, wherein the driving wheel is positioned at the front end of the crawler beam; the tensioning wheel is positioned at the rear end of the crawler beam; the crawler beam comprises two side beams; the fixed type supporting wheel and the floating type supporting wheel are positioned between the driving wheel and the tensioning wheel; the fixed type supporting wheel is positioned in front of the floating type supporting wheel; the fixed type supporting wheel, the floating type supporting wheel and the tensioning wheel are positioned on the same grounded plane; the distance from the center of gravity of the fixed type supporting wheel to the center of gravity of the hindmost floating type supporting wheel accounts for 40-70% of the length of the crawler, the crawler surrounds the driving wheel, the tensioning wheel, the floating type supporting wheel and the fixed type supporting wheel to form an obtuse triangle structure with an upward obtuse angle; the vertex of the obtuse angle is the fixed type supporting wheel; and the crawler beam which is arranged between the rear of the floating type supporting wheel and the front of the tensioning wheel is suspended on the grounded crawler.

Description

technical field [0001] The invention relates to a crawler belt traveling mechanism, which belongs to the technical field of machinery. Background technique [0002] The crawler type walking system is the most widely used walking system after the tire type in construction machinery. It has been widely used in various construction machinery, forming various crawler type construction machinery. Common tracked machinery includes: tractors, bulldozers, excavators, harvesters, robots, etc. At present, when the crawler walking system crosses obstacles, it is only guided by the supporting weight of the middle roller, which causes the front or rear of the vehicle to warp instantly when walking, and is prone to derailment of the track, which brings great harm to the vehicle or the operator. The impact of the impact will not only affect the efficiency of the machine, but also shorten the service life of the track and increase the cost of maintenance and use. [0003] Chinese utility ...

AI Technical Summary

Problems solved by technology

This kind of crawler walking system makes the driving wheel located at a relatively high position of the walking system, although it can avoid the driving wheel from being hit by external obstacles during walking, so that when the walking system encounters an obstacle, the swing and suspension of the tension wheel The damping effect of the shock absorbing device can improve the obstacle-surpassing ability of the whole machine, but when climbing a slope, there are small track grip, reduced traction, large climbing resistance, poor stability, and easy to cause the risk of track derailment and tipping, which cannot meet the needs of tractors. , bulldozers, excavators, robots and other crawler machinery climbing and walking requirements

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