Bearing Removal Tool
A technology for disassembling tools and bearings, applied in the direction of manufacturing tools, hand-held tools, etc., can solve the problems of different thermal expansion, inability to disassemble, and inability to heat the inner ring of the bearing, and achieve the effect of simple operation and reasonable structure
Active Publication Date: 2015-10-28
HARBIN DONGAN ENGINE GRP
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, during disassembly, since the inner ring of the bearing cannot be heated separately, and due to structural limitations and the difference in thermal expansion between the bearing and the shaft, it is not possible to disassemble by heating the bearing
Method used
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[0009] As shown in the figure, the bearing removal tool includes a screw 1, a pull ring 2, a split inner sleeve 4, an outer ring 5, and a mandrel 6. The mandrel 6 is matched with the hole at the end of the shaft 7, and the mandrel 6 is The set step is stuck on the end of the shaft 7, the pull ring 2 is cylindrical and arranged on the outside of the mandrel 6, the bottom of the pull ring 2 is provided with threads and cooperates with the screw 1, and the screw 1 extends into the pull ring 2 is placed on the mandrel 6, and the outer circle of the pull ring 2 is provided with a ring-shaped step, which is divided into two semi-circular rings, and the two ends are respectively provided with inward steps, and the step at one end is stuck on the pull ring 2. On the step, the step at the other end is stuck on the inner ring of the bearing 8 to be disassembled, and the outer ring 5 is arranged on the outside of the half inner sleeve 4 .
[0010] One end of the screw is provided with a ...
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The invention relates to a bearing removal tool comprising a screw, a pull ring, a split inner sleeve, an outer ring, and a mandrel. The mandrel fits a hole in the end of a shaft. The pull ring in a tubular shape is disposed outside the mandrel. The screw is disposed at the bottom of the pull ring, extends into the pull ring and abuts to the mandrel. The outer periphery of the pull ring is provided with a circular step. Two ends of the split inner sleeve are provided with inward steps respectively. The step at one end is clamped to the step of the pull ring, and the step at the other end is clamped to an inner ring of a bearing to be removed. The outer ring is disposed outside the split inner sleeve. The bearing removal tool is reasonable in structure and simple to operate; the bearing can be removed without heating the inner ring of the bearing; the split inner sleeve is clamped to the inner ring of the bearing, the spindle and a pressing sleeve are disposed between the screw and the shaft, and accordingly the bearing and other parts can be protected from damage during the process of removal.
Description
technical field [0001] The invention relates to a bearing removal tool. Background technique [0002] Bearings are an indispensable part of mechanical transmission. During the installation process, the precision between the shafts that are required to be matched with them is high. Generally, it is an interference fit, so as not to cause movement during the working process, which will affect the reliability of the operation, especially In the field of aviation, higher precision is required for its installation, such as the bearing on the tail drive shaft of a helicopter. In order to meet the requirements of use, during installation, the method of heating the inner ring of the bearing is generally used to enlarge the inner diameter, and then the bearing is assembled to the shaft by a press. However, during disassembly, since the inner ring of the bearing cannot be heated separately, and due to structural limitations and the difference in thermal expansion between the bearing ...
Claims
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IPC IPC(8): B25B27/073
Inventor 李远佟勇吕长生宋兴武李宏冯磊周丽芳徐秀波齐晓辉于伟
Owner HARBIN DONGAN ENGINE GRP