Expansion fixing apparatus for accurate processing mining vehicle wheel pair

Abstract

The invention discloses an expansion fixing apparatus for an accurate processing mining vehicle wheel pairs and relates to the field of mining vehicle wheel pair processing. By the use of the expansion fixing apparatus for the accurate processing mining vehicle wheel pair, problems of difficulty in maintaining coaxial degree of inner holes on two sides of the mining vehicle wheel pair and low efficiency can be solved. The expansion fixing apparatus for the accurate processing mining vehicle wheel pair comprises an expansion head, an expansion sleeve, a lead screw, a fixing cushion plate and an expansion nut, wherein the middle part of the top surface of the expansion head and the lead screw are vertically welded together; the expansion sleeve is formed by an expansion sleeve and a fixing block; the expansion sleeve and the fixing block are integrally cast; and a lead screw hole, through which the lead screw can pass is formed in the middle of the fixing block. The expansion fixing apparatus for the accurate processing mining vehicle wheel pair is simply structured with convenient operation, guarantees processing accuracy and greatly improves production efficiency.

Description

technical field [0001] The invention relates to a mining wheel set processing device, in particular to an expansion device for precisely processing a mining wheel set. Background technique [0002] The mine wheel set is an important component of the narrow gauge transport mine car up and down the mine. It is not only the bearing mechanism of the mine car, but also the running mechanism. Generally, when processing the wheels of a mining wheel set, the rim or tread of the wheel is fixed by the fixture on the lathe, and then the inner hole on one side is turned first, and the wheel is turned after the inner hole on the tread side or the inner hole on the rim side is processed. The front and back direction of the wheel and re-fix the tread or rim of the wheel before turning the inner hole on the other side. This is mainly because the ring-shaped protrusion must be retained between the inner hole on the tread side of the wheel and the inner hole on the rim side. , so the inner h...

AI Technical Summary

Problems solved by technology

However, a single wheel is integrally cast, and because of various reasons when casting the wheel, the rim or tread of the integrally cast wheel cannot fully guarantee a certain accuracy, that is, there is a certain deformation in the rim and tread of the wheel, that is, unprocessed The rim and tread of the wheel are respectively used as the datum plane for the processing of the inner holes on both sides and the coaxiality of the inner holes on both sides cannot be guaranteed. The sequential turning of the hole and the inner hole on the rim side cannot guarantee the product accuracy required for the inner hole on the tread side of the wheel and the inner hole on the rim side after turning. Therefore, the existing lathes are fixed on the outer side of the wheel twice. And the equipment for turning the inner hole on the tread side and the inner hole on the rim side of the wheel cannot guarantee the high precision required by the mine wheel.

At the same time, the processing operator needs to spend a lot of time debugging when processing the inner hole on the other side, which not only reduces the production efficiency of the mine wheel set to a large extent, but also makes it difficult to ensure the accuracy of the product in the manual debugging method

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