Three-jaw bearing puller

Abstract

The invention discloses a three-jaw bearing puller. The bearing puller comprises a screw with an external thread, a disc, three jaws and an obstacle eliminating device; a through hole with an internal thread is formed in the center of the disc; the disc is in threaded connection with the screw through the through hole; the screw is rotated to enable the disc to move linearly on the screw; the three jaws constitute a pull group capable of being opened and closed; the obstacle eliminating device is a cylinder with two open ends; the opening in one end of the cylinder is identical with the through hole in the disc in size and thread arrangement and is in threaded connection with the thread at the lower end of the screw; in the working state, the cylinder is located among the disc and jaw tips to move synchronously linearly; soft sheets are inserted in the inner wall of the other end opening of the cylinder; and a shaft of the to-be-detached bearing can be sleeved with the cylinder. According to the bearing puller, positioning is facilitated, the synchronousness of buckling of the bearing by the three jaws is improved, hands are not hurt easily, and substances such as grease, oil residues, rust and the like on the shaft can be removed, so that the bearing can be pulled out smoothly.

Description

technical field [0001] The invention relates to the field of bearing dismounting, and more specifically, the invention relates to a bearing tensioner. Background technique [0002] When disassembling bearings and spline hubs of transmissions and other assemblies, the special bearing tensioner is used to solve the problem of no special dismounting tools when dismounting bearings. In the current prior art, when using the traditional three-jaw bearing tensioner to remove the bearing and spline hub of the transmission, the staff needs to press the claws of the bearing tensioner with their hands, which is not convenient for positioning, and is easy to cause hand injury. In addition, during the use and disassembly of equipment such as transmissions that require bearings, grease, oil residue, rust spots and other substances that hinder the pull-out of the bearings are often left on the shafts, so it is easy to cause the bearings to lock up or be clogged and difficult to disassemble...

AI Technical Summary

Problems solved by technology

In the current existing technology, when using the traditional three-jaw bearing tensioner to disassemble the bearing and spline hub of the transmission, the staff needs to press the claws of the bearing tensioner with their hands, which is not convenient for positioning and is easy to cause hand injury

In addition, during the use and disassembly of equipment such as transmissions that require bearings, grease, oil residue, rust spots and other substances that hinder the pull-out of the bearings are often left on the shafts, so it is easy to cause the bearings to lock up or be clogged and difficult to disassemble. Pulling may cause the outer ring of the bearing to be worn and damaged, and there will be a waste of manpower and material resources and potential safety hazards.

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