Double-stage parallel-connection rigid power transmission system for auxiliary transport vehicle under low type coal mine

Abstract

The invention belongs to the field of auxiliary transport vehicles for coal mines and provides a double-stage parallel-connection rigid power transmission system for an auxiliary transport vehicle under a low type coal mine in order to solve the problem of use limitation of the transport vehicle under the low coal mine. The system comprises a drive axle main body and two groups of wheel side brakes, wherein the two groups of wheel side brakes are connected in parallel to two sides of the rear of the drive axle main body respectively through transmission mechanisms in a transmission ratio being 1; each transmission mechanism comprises two transmission cases rigidly connected through a transmission shaft, one transmission case is connected with a middle half axle of the drive axle main body, and the other transmission case is connected with the corresponding wheel side brake. According to the system, a conventional wet type drive axle is effectively separated, so that the drive axle main body moves forwards and is closer to the hinged position of the vehicle while the tire installation positions are not changed, original drive axle installation space is saved for goods loading, more loading space is saved for a rear rack, and the problem of use limitation of the transport vehicle under the low type or ultra-low type coal mine is solved.

Description

technical field [0001] The invention belongs to the field of auxiliary transport vehicles for coal mines, and in particular relates to a double-stage parallel rigid power transmission system for auxiliary transport vehicles in low coal mines. Background technique [0002] Restricted by the height of the coal mine roadway, auxiliary transport vehicles must meet the height of the roadway under the premise of meeting the power requirements to ensure passability. However, the drive axle of the current transport vehicle integrates the main body of the drive axle with the wheel brake (integrated structure). The volume is large, and it can only be placed in the middle of the transport vehicle, which will cause the bridge to protrude, hinder the lowering of the height of the hopper or the U-shaped frame, and limit the use of the transport vehicle in low-profile coal mines. In this case, most low-profile vehicles choose hydrostatic transmission to reduce the height. The principle is ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the use of transport vehicles in low-profile coal mines is limited due to the obstruction of the lowering of the height of the hopper or U-shaped frame by the protrusion of the bridge package, the present invention further provides a two-stage parallel rigid power transmission for auxiliary transport vehicles in low-profile coal mines system

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