Large bearing heating device for mining machinery

Abstract

A large bearing heating device for mining machinery comprises a base and a heating pot. A groove is formed in the base, an electric heating plate is arranged in the groove, the heating pot is arrangedon the electric heating plate, the outer bottom of the heating pot is attached to the upper surface of the electric heating plate, and a temperature sensor is arranged on the side wall of the heatingpot; the portions, on the left side and the right side of the heating pot, of the base are each vertically provided with an electric cylinder, the top end of a telescopic rod of each electric cylinder is connected with a Z-shaped plate, the top ends of the telescopic rods of the electric cylinders are connected with the lower end faces of horizontal plates at the upper ends of the Z-shaped plates, supporting plates are detachably placed on horizontal plates at the lower ends of the two Z-shaped plates, one side of the base is provided with a hand push frame, and the bottom of the base is provided with universal wheels with brake functions. The large bearing heating device can be used for large bearings for mining machinery, can be conveniently transported to an operation site of mining machinery, and can heat the large bearings for mining machinery on the operation site.

Description

technical field [0001] The invention relates to the field of bearing heating devices, in particular to a large-scale bearing heating device for mining machinery. Background technique [0002] The fit between the bearing and its mounting shaft is generally an interference fit, with an interference of 0.01-0.1 mm. There are two methods for assembling the bearing and the shaft. One is to use a copper rod to knock the bearing on the shaft. This method will not only cause certain damage to the bearing, but also produce copper scraps or copper particles when the copper rod hits the bearing. These copper scraps or copper particles will enter the bearing and affect the normal use of the bearing. This method is generally not used in operation; the second is to heat the bearing first, and use the principle of heat expansion and contraction to make the bearing expand, and the expanded bearing can be installed on the shaft very conveniently, quickly and without damage. [0003] Bearing...

AI Technical Summary

Problems solved by technology

However, for large bearings used in mining machinery, large electromagnetic induction bearing heaters can be used for heating, but large electromagnetic induction bearing heaters are expensive and costly, while oil baths The cost of the heating device is very low; and when mining machinery replaces large bearings due to repair and maintenance, it is generally necessary to heat and install large bearings on the job site. Large electromagnetic induction bearing heaters are difficult or even impossible to transport to the job site. In this case, it is inevitable to use oil bath heating method to heat large bearings

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