Shaft sleeve capable of replacing speed reducer bearing
A technology of reducer and shaft sleeve, which is applied in the field of manufacturing, can solve the problems of expensive manufacturing cost and complicated heat treatment method, and achieve the effect of long service life, simple heat treatment method and low manufacturing cost
Inactive Publication Date: 2015-09-30
ANHUI BUERYUE BEARING
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- Abstract
- Description
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Problems solved by technology
[0002] 30210 tapered roller bearings are widely used in automotive reducers because of their good mechanical properties, but they have complex heat treatment methods and expensive manufacturing costs, so it is urgent to seek alternatives to this bearing
Method used
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Experimental program
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Embodiment Construction
[0005] A shaft sleeve that can replace the bearing of a reducer. The manufacturing steps are as follows: select a steel bar made of GCr18Mo as a raw material; carry out forging processing and turning processing on the raw material to obtain a rough blank of the shaft sleeve; perform heat treatment on the rough blank, including normalizing and Annealing, normalizing is heating to 900-920°C, holding for 30 minutes, and cooling in the air; annealing is heating the material to 800°C, holding for 5 hours, slowly cooling to 500°C with the furnace, and then cooling in the air; Grinding, polishing, lubricating, and packaging.
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The invention provides a shaft sleeve capable of replacing a speed reducer bearing. The shaft sleeve is manufactured through the following steps: selecting materials; turning; performing thermal treatment; and grinding. The shaft sleeve provided by the invention is capable of effectively replacing a 30210 tapered roller bearing; compared with the 30210 tapered roller bearing, the shaft sleeve is relatively excellent in mechanical property, is wear-resistant and pressure-proof and can adapt to impact stress generated by high-speed rotation and alternating load; furthermore, the selected materials have self-lubricating property, so that the shaft sleeve is long in service life, simple in thermal treatment mode and low in manufacturing cost.
Description
technical field [0001] The invention relates to the field of manufacturing technology, in particular to a shaft sleeve that can replace a reducer bearing. Background technique [0002] 30210 tapered roller bearings are widely used in automobile reducers because of their good mechanical properties, but they have complex heat treatment methods and expensive manufacturing costs, so it is urgent to find alternatives for this bearing. Contents of the invention [0003] The technical scheme adopted in the present invention is: a shaft sleeve that can replace the bearing of the reducer, and the manufacturing steps are as follows: select a steel bar whose material is GCr18Mo as the raw material; carry out forging processing and turning processing on the raw material to obtain the rough blank of the shaft sleeve; Heat treatment of the billet, including normalizing and annealing. Normalizing is heating to 900-920°C, holding for 30 minutes, and cooling in air. Annealing is heating...
Claims
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IPC IPC(8): F16C33/12F16C33/14
Inventor 李政
Owner ANHUI BUERYUE BEARING
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