Novel bearing puller

Abstract

The invention provides a novel bearing puller. The bearing puller comprises a puller body, stop iron, a jack and two screws; an avoiding groove is formed in the puller body; a motor shaft is sleeved with the avoiding groove; the puller body adopts the integrally-formed structure in the axially symmetric shape; two screw holes are axially symmetrically formed in the puller body; the jack is arranged on the stop iron; and one end of each screw is connected with the stop iron, and the other end is connected with one screw hole of the puller body. During dismounting operation, the novel bearing puller is assembled, the end surface of the puller abuts against the end surface of a to-be-disassembled part, an ejection shaft of the jack abuts against the motor shaft, the jack is driven, and the puller pulls the to-be-disassembled part out of the motor shaft. The puller is solid and firm in structure, uniform in stress and relatively high in structural strength, parts on large electromechanicalequipment can be dismounted easily, the contact surface of the motor shaft can be kept smooth, the shaft surface is not damaged, and the service life can be prolonged effectively.

Description

technical field [0001] The invention belongs to the technical field of assembly and disassembly equipment, in particular to a novel bearing puller. Background technique [0002] As an essential tool for dismantling bearings, end covers and fans in electromechanical equipment, bearing pullers are widely used in the process of equipment maintenance. The types of pullers can be roughly divided into claw type and chuck type pullers. It is suitable for removing different types of bearings and end covers, etc. Chuck type pullers are generally used for large equipment. [0003] Due to the high power of the high-voltage motor, the volume is relatively large, and the torque is very large. When the motor shaft transmits torque, it relies on keys and friction to achieve it. The matching clearance between the shaft and the counter wheel (coupling) is required to be very small, and some of them are still interference fits. After running for a long time, corrosion and other impurities ...

AI Technical Summary

Problems solved by technology

After running for a long time, corrosion and other impurities will enter the gap between the counter wheel, fan and rotating shaft, resulting in great disassembly resistance. The finished puller that can be purchased on the market will be deformed and scrapped due to excessive force during disassembly, making it unusable. No proven tools are available

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