Suspension device for improving obstacle crossing ability of bridge type crawler walking system

Abstract

The invention discloses a suspension device for improving the obstacle crossing ability of a bridge type crawler walking system, which is symmetrically mounted on two sides of a vehicle body and comprises an elastic shock absorber, a loading wheel B, a loading wheel C and a rear bridge frame, and rotation shafts of the loading wheel B and the loading wheel C are respectively connected onto the rear bridge frame. The B loading wheel is closer to the advancing direction of the vehicle body than the C loading wheel, the rear axle frame is hinged to the rear portion of the vehicle body, the first end E of the elastic shock absorber is hinged to the vehicle body, and the second end F of the elastic shock absorber is hinged to the rear axle frame. A limiting device is installed on the elastic shock absorber, and when the vehicle body conducts vertical obstacle crossing walking, the displacement of the axis of the rotation shaft of the B loading wheel in the vertical direction is higher than the displacement of the axis of the rotation shaft of the C loading wheel in the vertical direction. The function requirements of daily supporting and buffering damping are met, and the obstacle crossing performance of the vehicle can be improved.

Description

technical field [0001] The present application relates to the field of crawler-tracked traveling equipment, and more particularly to a suspension device for improving the obstacle-surmounting ability of a bridge-type crawler-tracked traveling system. Background technique [0002] When the crawler belt running system in the existing vehicle adopts the bridge type wheel body as the road wheel of the suspension device, because the bridge frame rotation central axis is installed on the shock absorbing rocker arm, it swings freely in a seesaw type. The swing of the bridge frame and the wheel body is not restrained, so that when the vehicle climbs over the vertical obstacle, after the front of the vehicle is raised, the rear bridge type wheel body becomes the fulcrum of the whole vehicle pitch, and the rear bridge frame lowers the height of the vehicle body because both wheels are on the ground. The rear shock-absorbing rocker arm connected to it also shrinks due to the greater we...

AI Technical Summary

Problems solved by technology

The swing of the bridge frame and the wheel body is not restrained, so that when the vehicle climbs over the vertical obstacle, after the front of the vehicle is raised, the rear bridge type wheel body becomes the fulcrum of the whole vehicle pitch, and the rear bridge frame lowers the height of the vehicle body because both wheels are on the ground. The rear shock absorber arm connected to it also shrinks due to the greater weight of the car body, which further leads to an increase in the elevation angle of the vehicle climbing and weakens the vehicle's ability to overcome obstacles

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