Track type running mechanism and track vehicle

Abstract

The invention discloses a track type running mechanism and a track vehicle. The track type running mechanism comprises an external box body, an internal box body and a track; the internal box body isembedded in the external box body; the track is arranged on the external box body in a sleeving manner; a first supporting wheel is arranged at the bottom of the external box body; a second supportingwheel is arranged at the bottom of the internal box body; a driving structure is arranged between the external box body and the internal box body; and the driving structure is used for driving the external box body to rise relative to the internal box body during turning of the running mechanism so that the external box body drives the track under the first supporting wheel to be separated from the ground and drives the track under the second supporting wheel to be kept in contact with the ground. When the track type running mechanism and the track vehicle turn, the external box body drives the track under the first supporting wheel to be separated from the ground and drives the track under the second supporting wheel to be in contact with the ground; and therefore, the contact length andarea between the track and the ground are reduced, the turning resistance is reduced, and the lightweight turning of the track type running mechanism is realized.

Description

technical field [0001] The invention relates to the technical field of large crawler vehicles, in particular to a crawler-type traveling mechanism and a crawler vehicle. Background technique [0002] For large crawler vehicles such as crawler cranes, the weight of the whole machine is generally relatively large. In order to increase the grounding area and reduce the grounding specific pressure, the length and width of the track frame and the track are generally increased as much as possible, but the result is that, When the track frame performs single-leg steering, due to poor ground conditions or changes in the center of gravity, the turning resistance moment often exceeds the torque provided by the travel reducer, and the tracked vehicle cannot turn. [0003] In order to solve the problem that tracked vehicles cannot turn, the commonly used solution is to replace large-scale motors and travel reducers to increase their output torque, but this will cause a substantial incre...

AI Technical Summary

Problems solved by technology

[0002] For large crawler vehicles such as crawler cranes, the weight of the whole machine is generally relatively large. In order to increase the grounding area and reduce the grounding specific pressure, the length and width of the track frame and the track are generally increased as much as possible, but the result is that, When the track frame performs single-leg steering, due to poor ground conditions or changes in the center of gravity, the turning resistance moment often exceeds the torque provided by the travel reducer, and the tracked vehicle cannot turn.

[0003] In order to solve the problem that tracked vehicles cannot turn, the commonly used solution is to replace large-scale motors and travel reducers to increase their output torque, but this will cause a substantial increase in cost and waste of energy. Therefore, the existing The technical solution only solves the problem of being able to turn, but it is still not the best way to realize the easy turning of tracked vehicles

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