Sliding Bearings Capable of Generating Distributed Thermal Wedge Dynamic Lubrication
A sliding bearing, distributed technology, applied in the direction of sliding contact bearings, rotating bearings, engine lubrication, etc., can solve the problems of fast wear, large frictional resistance, etc., to improve the bearing capacity and service life, and increase the scope of application , Enhance the effect of dynamic pressure lubrication bearing capacity
Inactive Publication Date: 2015-12-02
ZHEJIANG UNIV
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- Application Information
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Problems solved by technology
[0010] In order to solve the problems of large frictional resistance and fast wear in the background technology, the purpose of the present invention is to provide a sliding bearing capable of generating distributed thermal wedge-shaped dynamic pressure lubrication
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0032] Such as figure 1 Shown is a schematic diagram of the structure of a distributed thermal wedge-shaped dynamic pressure lubricated radial sliding bearing in operation. Distributed thermal wedge dynamic pressure lubricated radial sliding bearing, including radial sliding bearing bearing base 1, multiple radial sliding bearing circular pillars 2 of the same size and radial sliding bearing bushing 3; radial sliding bearing bearing base 1 and the bearing bush 3 of the radial sliding bearing are connected by a plurality of circular pillars 2, and the plurality of circular pillars 2 are circumferentially distributed on the outer surface of the bearing bush 3, that is, the axes of the plurality of radial sliding bearing circular pillars 2 pass through the radial The centers of the bearing bushes 3 of the sliding bearing are distributed at equal central a...
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The invention discloses a sliding bearing capable of generating distributive heat wedge-shaped hydrodynamic lubrication. The sliding bearing comprises a bearing pedestal, a plurality of circular supporting pillars and a bearing bush; for a radial sliding bearing, the bearing pedestal and the bearing bush are connected through the plurality of circular supporting pillars, and the plurality of circular supporting pillars are circumferentially distributed on the outer surface of the bearing bush; and for a thrust sliding bearing, uniformly-distributed round holes are formed in the bearing pedestal and are internally provided with the circular supporting pillars, and the bearing bush is fixed on the surfaces of the bearing pedestal and the circular supporting pillars. The circular supporting pillars generate heat expansion under the action of friction heat generated in the working process of the bearing to extrude the bearing bush to ensure that bulges are generated on the surface of the bearing bush and are formed into a plurality of wedge-shaped convergent gaps together with the surface of a bearing neck, so that the hydrodynamic lubrication effect is enhanced, the bearing capacity of the bearing is improved, and the service life of the bearing is prolonged; the uniformly-distributed bulges are formed in the surface of the bearing bush when the circular supporting pillars expand because of heat; and through the wedge-shaped convergent gaps, the left and right lubrication can be realized, and the application range of the bearing can be widened.
Description
technical field [0001] The invention relates to a dynamic pressure lubricated sliding bearing, in particular to a sliding bearing capable of generating distributed thermal wedge dynamic pressure lubrication. Background technique [0002] Under the condition of hydrodynamic lubrication, the surface of the journal and the surface of the bearing bush are separated by lubricating oil, so that there is no direct contact, which can greatly reduce the friction and wear between the two surfaces. One of the conditions for hydrodynamic lubrication of sliding bearings is that the surface of the journal and the surface of the bearing bush need to form a wedge-shaped convergence gap. The Reynolds equation for sliding bearing lubrication is shown in formula (1). In the existing general sliding bearings, only one or a few wedge-shaped convergence gaps can be formed between the journal and the bearing bush, the dynamic lubrication effect is limited, the bearing frictional resistance is lar...
Claims
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IPC IPC(8): F16C17/00F16C33/10F16N1/00
Inventor 彭龙龙许迪初汪久根
Owner ZHEJIANG UNIV