A hydraulic automatic extension device for mining explosion-proof material troughs

Abstract

This utility model relates to the field of auxiliary transportation equipment technology in mines, and in particular to a hydraulic automatic extension device for a mine explosion-proof material vehicle trough. The device includes a runway, a connecting frame, an extension bracket, and an actuator. The runway is welded and fixed to the bottom of the trough end and is symmetrically arranged longitudinally. The connecting frame is slidably installed between the runways. The extension bracket is arranged at the end of the trough and fixedly connected to the connecting frame. The actuator is installed at the bottom of the trough end and is used to control the extension and retraction of the extension bracket. This utility model controls the automatic extension of the extension bracket through the actuator, providing stable and reliable additional support for the 1.7-meter-long pipe originally suspended outside the trough. This greatly improves the longitudinal stability when traveling in narrow tunnels, avoiding the risk of bumps and tilting caused by the rearward shift of the center of gravity. The extension bracket directly transfers the load of the suspended pipe portion to the robust runway and the main structure of the vehicle body, avoiding the concentration of force on a localized area at the end of the trough.

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