Middle trough connecting device

Abstract

A middle trough connecting device belongs to the technical field of mining conveying equipment, a clamping part for clamping dumbbell pins is arranged on a middle trough, the clamping part comprises a main body dumbbell pin and a fastener, the main body dumbbell pin is clamped at the clamping part of the middle trough, and the fastener is mounted at one end of the main body dumbbell pin and is clamped at the clamping part of the middle trough. The fastener is used for fastening the main body dumbbell pin and preventing the main body dumbbell pin from rotating at the clamping part of the middle trough; the fastener comprises a clamping block and a spring pin, the clamping block is clamped to the clamping part of the middle trough and connected with the main body dumbbell pin, and the spring pin is arranged on the clamping block and connected with the main body dumbbell pin at the same time, so that the clamping block is prevented from falling off from the main body dumbbell pin; and the clamping block is provided with a first protrusion, a second protrusion and a third protrusion, the first protrusion, the second protrusion and the third protrusion jointly surround the spring pin in the center, and the materials and the spring pin are prevented from colliding and extruding each other. The problem of connection failure between the middle troughs is solved.

Description

technical field [0001] The invention belongs to the technical field of mine conveying equipment, and in particular relates to a connecting device for a middle groove. Background technique [0002] The scraper conveyor is one of the key equipment in the mechanized coal mining face of the coal mine. The middle trough is the main component of the scraper conveyor for material carrying. The middle trough is widely connected with dumbbell pins, and the dumbbell Compared with the bolt connection, there is a large gap between the screw and the through hole in the bolt connection, and it is easy to misalign when the middle groove is connected with the middle groove. The dumbbell pin is a kind of pin shaft and belongs to the standardized fastener. It can be statically fixed and connected, and it can also move relative to the fastened parts. It works reliably and is easy to disassemble. [0003] However, during the coal mining process of the traditional dumbbell pins in the working f...

AI Technical Summary

Problems solved by technology

[0004] In view of this, in view of the above deficiencies, the present application provides a middle tank connecting device, which prevents the middle tank connecting device from falling off from the middle tank, and solves the problem of connection failure between the middle tank and the middle tank

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