Quick coupling for fixation of mining rails

Abstract

The invention belongs to connection devices for joints of mining rails and particularly relates to a quick coupling for fixation of mining rails. The quick coupling comprises a first clamping plate, a second clamping plate and an insertion plate, and the first clamping plate and the second clamping plate are arranged on two sides of rail webs, and the insertion plate is inserted between two rail end faces. At least one of the clamping plates is provided with bolts, and the bolts are inserted into connection holes reserved in the rail webs; the insertion plate extends towards at least one side of the rail webs to form an extending portion which penetrates through the through holes in the first clamping plate and / or the second clamping plate, each extending portion is provided with insertion holes, and wedge blocks are inserted into the insertion holes and abutted against the outer sides of the first clamping plate and / or the second clamping plate to tightly press the first clamping plate and / or the second clamping plate onto the rail webs. The two clamping plates are locked by the wedges, so that adoption of bolts for solid joint is avoided, mounting and demounting efficiency is greatly improved, and equipment cost is saved; in addition, the quick coupling has the advantages of small size, light weight and convenience for constructors to take along.

Description

Technical field [0001] The invention belongs to a connecting device at a joint of a mine track, and particularly relates to a quick joint for a track fixing of a mine track. Background technique [0002] In the prior art, the rail joints are generally connected by rail cleats. The rail plywood is a strip-shaped profile. The plate body is generally provided with four mounting holes. When connecting the rails, the two rail plywoods are clamped on both sides of the rail sub-web respectively. The mounting holes on the rail plywood are respectively pre-installed on the rail. The remaining mounting holes correspond to each other, and then use bolts and nuts to compress the two plywoods at the above mounting holes. However, there are many defects in the use of road splints: First, the volume and weight of the road splints are relatively large. The length of ordinary road splints is generally more than 50cm and the weight is more than 5kg. The construction personnel carry a lot of money...

AI Technical Summary

Problems solved by technology

However, there are many defects in the use of the road splint: first, the volume and weight of the road splint are relatively large. The length of the ordinary road splint is generally more than 50cm and the weight is more than 5kg. Inconvenient; in addition, the road plywood mainly uses bolts to provide clamping force, and at least four bolts are used at a joint, which has low assembly efficiency and high cost of use. At the same time, the bolts are prone to rust under some complicated working conditions, and It is very difficult to replace the corroded bolts, and a large number of heavy tools are often required to remove them, which imposes a huge burden on the operators

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