Movable type broken-belt catching device with buffer device

Abstract

The invention discloses a movable type broken-belt catching device with a buffer device. The movable type broken-belt catching device comprises the buffer device and a broken-belt catching device body. The buffer device comprises a base, a connecting shaft and a spring, wherein the base is fixedly arranged on the ground through a foundation bolt, a connecting shaft hole is formed in the base, the spring is arranged on the connecting shaft, a limiting nut is arranged on one side of the spring, a stopping nut is arranged on the other side of the spring, a connecting shaft hole is formed in the stopping nut, the stopping nut and the base are welded together, the base is connected with the broken-belt catching device body through the connecting shaft, and the connecting shaft penetrates through the stopping nut and the connecting shaft hole of the base and is connected with the broken-belt catching device body through a bolt. The movable type broken-belt catching device with the buffer device is reasonable and compact in structure and particularly suitable for a lower conveying belt type conveyor, the accident that a broken belt is broken again when instant tension force of the conveying belt is too large can be effectively avoided due to mobility which is formed by the broken-belt catching device based on the buffer device, the safety running coefficient of the belt conveyor can be effectively increased, and the accident that people are hurt by the broken belt of the belt conveyor is effectively avoided.

Description

technical field [0001] The invention relates to a movable broken belt catching device with a buffer device. Background technique [0002] At present, there are many technical schemes for the catcher used for belt conveyor protection, but a considerable part of them adopts the principle of swing block type. The wedge-shaped block in these catchers is fixed on the upper part or outside of the frame. When a broken belt occurs, the block is driven to swing by some kind of power drive device, reducing the gap between the block and the driving wheel, and grasping the belt. catch. If divided according to different power sources, it can be divided into two types: friction drive type and electro-hydraulic type; the former drive roller is located under the conveyor belt, which is eccentric or ratchet backstop type, and the drive wheel rotates normally when the conveyor belt is running normally. . When the belt is broken, the friction generated by the reverse movement of the conveyo...

AI Technical Summary

Problems solved by technology

[0003] There are one or more of the following disadvantages in the catcher scheme, mainly as follows: first, the catcher and the conveyor share a frame, and its strength is low, and the frame may be deformed during the catch; second, the catch At the same time, only the edge parts on both sides of the conveyor belt are caught, and the contact area between the catch block and the conveyor belt is small, which will cause great damage to the conveyor belt; third, there are many transmission parts, and dust and materials can easily block the movement of the moving parts, reducing the catch. The reliability; fourth, because they use the conveyor belt to run in reverse to generate the catcher action, so when the conveyor belt is parked and the conveyor belt is reversed for a short distance, it is easy to cause misoperation

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