Bearing inner ring detaching device

Abstract

The invention discloses a bearing inner ring detaching device, which comprises a locking block, a screw supporting disc, a connecting bolt, an ejection screw and a rocking handle, wherein the locking block is provided with a sleeve hole which is matched with the outer diameter of a bearing inner ring to be sleeved, connecting bolt holes axially penetrating through the two end faces and locking bolt holes radially penetrating through the side face are uniformly formed along the circumferential direction of the sleeve hole, locking bolts are arranged in the locking bolt holes for locking the bearing inner ring, the center of the screw supporting disc is provided with a central threaded hole allowing the ejection screw to be screwed, avoiding bolt holes corresponding to the connecting bolt holes and axially penetrating through the two end faces are uniformly formed along the circumferential direction of the central threaded hole, the connecting bolt penetrate through the avoiding bolt holes to be screwed to the connecting bolt holes, the ejection screw is screwed to the central threaded hole, and the rocking handle is arranged at the rear end of the ejection screw. The bearing inner ring detaching device is simple and reasonable in structure, fast in detachment and convenient to operate, and bearings and shafts can be prevented from being damaged.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a device for dismounting an inner ring of a bearing. Background technique [0002] When disassembling the bearing, the outer ring of the bearing is easy to fall off from the inner ring of the bearing. At this time, because the inner ring of the bearing is closely matched with the shaft, it is generally difficult to take out the inner ring. The commonly used methods for disassembling the inner ring of the bearing are: 1. Direct knocking. Align the inner end face of the bearing with a hammer and steel drill, and beat it hard from the inside to the outside. This method is simple and easy to implement, but it is easy to damage the shaft, reduce the smoothness of the shaft surface, and even scrap the shaft directly. 2. Heating. The bearing and the shaft are closely matched. According to the principle of thermal expansion and contraction, the inner side of the bearing is heated and preheated a...

AI Technical Summary

Problems solved by technology

However, in general, the outer ring of the bearing falls off, and the inner ring is still tightly fitted to the shaft. It is difficult for the hydraulic puller to hold the flange of the inner ring at one time, and the space is small, which is inconvenient for personnel to operate.

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