Bearing Pulling Device

Abstract

The invention discloses a bearing drawing device, which comprises a hydraulic oil cylinder, a drawing head fixedly connected to a hydraulic rod of the hydraulic oil cylinder, and a support seat used to support the rotating shaft of the bearing, and the support seat is fixedly connected to the hydraulic oil cylinder The cylinder body is sleeved on the outside of the drawing head. There is a gap between the drawing head and the support seat for placing the bearing. The drawing head includes a bracket for connecting with the hydraulic rod, and a rotating shaft rotatably arranged on the bracket. The mandrel and the plectrum fixedly arranged at the bottom end of the rotatable mandrel, the plectrum can protrude out of the peripheral surface of the bracket or retract within the peripheral surface of the bracket along with the rotation of the rotary mandrel. The bearing drawing device of this kind can improve the drawing efficiency and reduce the drawing difficulty when drawing the bearing, avoid frequent operation of work stations by staff, and is beneficial to the physical and mental health of the staff.

Description

Technical field [0001] The invention relates to the technical field of bearing drawing, in particular to a bearing drawing device. Background technique [0002] Large-scale wind turbine bearings are the key components of the generator. At present, the bearing is generally embedded in the inner ring of the rotating shaft by means of a thermal sleeve, and it is difficult to pull the bearing out of the inner ring of the rotating shaft when the generator is disassembled. [0003] The traditional bearing removal method uses three hydraulic jacks with auxiliary tooling. However, to pull out the bearing requires the cooperation of three people, which has certain requirements on the operation level of the operator, which may easily cause uneven bearing force, affect bearing life, and sometimes even damage the bearing, and when the bearing is unevenly stressed, the bearing is likely to jam. The extraction process is time-consuming and laborious; the bearing is placed on the inner ring of ...

AI Technical Summary

Problems solved by technology

However, pulling out the bearing requires the cooperation of three people, which has certain requirements on the operator's operating level, which will easily cause uneven force on the bearing, affect the life of the bearing, and sometimes even damage the bearing, and when the force on the bearing is uneven, the bearing is easy to get stuck The pulling out process is time-consuming and laborious; the bearing is placed on the inner ring of the rotating shaft, about 2 meters above the ground, and the operating station is on the middle flange of the rotating shaft. Workers need to go up and down frequently, which does not meet the ergonomic requirements; Pollution, poor workplace environment

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