A shaft support structure and its manufacturing method
A supporting structure and manufacturing method technology, applied in the field of machinery, can solve problems such as fatigue failure and shortened service life, and achieve the effects of prolonging service life, reducing heat, and increasing fatigue resistance
Inactive Publication Date: 2017-03-01
SUZHOU BONRAY MEASURE & CONTROL EQUIP
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Problems solved by technology
[0003] In order to reduce the friction coefficient, people usually use the method to make the inner ring as smooth as possible. However, because the inner ring is smooth, the lubricating oil cannot be well stored on the contact surface between the shaft and the inner ring, resulting in inner ring friction. Generates heat, which can easily lead to fatigue failure and shorten its service life
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[0022] The present invention provides a shaft support structure and its manufacturing method. In order to enable those skilled in the art to understand the solution of the present invention more clearly, and to make the above-mentioned purpose, features and beneficial effects of the present invention more clear and understandable, Attached below Figure 1-3 The present invention will be further described in detail with specific embodiments.
[0023] A support structure for a shaft, including an inner ring 1, the inner surface of the inner ring 1 is distributed with a first series of micro-holes 2 with a diameter of 3-20 μm, and the depth of the first series of micro-holes 2 is 0.1-5 μm; A series of micro holes 2 are connected.
[0024] In this embodiment, the inner diameter of the inner ring 1 is 10 mm. The inner diameter of the inner ring 1 can also be 1mm, 3mm, 5mm, 6mm, 15mm or 20mm according to needs.
[0025] In this embodiment, the distribution area of the first ser...
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Abstract
The invention discloses a shaft supporting structure. The shaft supporting structure comprises a inner ring, wherein first series miniature holes with the pore diameters of 3-20 microns are distributed on the inner surface of the inner ring; the depths of the first series miniature holes are 0.1-5 microns; and the adjacent first series miniature holes are mutually communicated. The first series miniature holes can accommodate lubricating oil and communicating passages between the first series miniature holes can also accommodate the lubricating oil, so that the lubricating oil can well exist on contact surfaces of a shaft and the inner ring of the shaft supporting structure; due to existence of the lubricating oil, the frictional coefficient between the shaft and the shaft supporting structure is relatively small and heat generation is reduced; and the fatigue resistance of the shaft supporting structure is improved, so that the service life of the shaft supporting structure is prolonged. The invention further provides a manufacturing method of the shaft supporting structure.
Description
technical field [0001] The invention relates to the field of mechanical technology, in particular to a shaft support structure and a manufacturing method thereof. Background technique [0002] The supporting structure of the shaft is a component that fixes and reduces the friction coefficient of the load during the mechanical transmission process; its inner ring rotates at a high speed relative to the shaft it supports, and friction is one of the main reasons for its failure. [0003] In order to reduce the friction coefficient, people usually use the method to make the inner ring as smooth as possible. However, due to the smooth inner ring, the lubricating oil cannot be well retained on the contact surface between the shaft and the inner ring, resulting in inner ring friction. Heat is generated, which can easily lead to fatigue failure and shorten its service life. Contents of the invention [0004] The purpose of the present invention is to provide a shaft support struc...
Claims
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IPC IPC(8): F16C33/10F16C33/14C23F4/00
Inventor 戎海明
Owner SUZHOU BONRAY MEASURE & CONTROL EQUIP