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Intelligent hybrid bearing based on negative-poisson-ratio structure

A dynamic and static pressure bearing, negative Poisson's ratio technology, applied in the direction of bearings, shafts and bearings, mechanical equipment, etc., to achieve the effect of reducing bearing vibration, improving motion accuracy, and reducing dependence

Inactive Publication Date: 2017-05-31
洛阳神实轴承科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to redesign a dynamic and static pressure bearing with a negative Poisson's ratio structure in view of the above-mentioned deficiencies in the prior art, so that it has a certain self-adaptive ability, and can adjust to disturbances that occur during operation, etc. The factors that affect the motion accuracy can respond quickly and make automatic adjustments to solve the excessive requirements of high speed and high precision on the bearing clearance, and reduce the difficulties in the design, processing and testing of dynamic and static pressure bearings

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Embodiment Construction

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "top", "inner", "outer" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present inv...

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Abstract

The invention discloses an intelligent hybric bearing based on a negative-poisson-ratio structure. The intelligent hybric bearing comprises a main shaft, a bearing body and an oil inlet device. The bearing body is arranged on the main shaft in a sleeving manner. An installation hole is formed in the bearing body. The oil inlet device is installed in the installation hole. A first static pressure cavity and a second static pressure cavity which communicate with each other are formed in a bearing face of the bearing body. The oil inlet device is connected with the second static pressure cavity through an oil inlet formed in the bottom of the installation hole. The negative-poisson-ratio structure is adopted in the oil inlet device for achieving oil supply adjustment. According to the intelligent hybric bearing based on the negative-poisson-ratio structure, a specific stretching effect of the negative-poisson-ratio structure is utilized, bearing vibration and eccentricity can be effectively reduced, and therefore the movement precision is improved; and meanwhile, the dependency on bearing clearances under the high-speed work condition is lowered, and the problems that a traditional high-precision hybrid bearing is difficult to machine and likely to be blocked are solved.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of dynamic and static pressure bearing structures in the field of sliding bearings, and in particular relates to an intelligent dynamic and static pressure bearing based on a negative Poisson's ratio structure used in high-precision rotating machinery. [0003] 【Background technique】 [0004] The dynamic and static pressure bearing combines the characteristics of the dynamic pressure bearing and the static pressure bearing, and can form a high-pressure lubricating film in a relatively wide speed range. Error homogenization and vibration resistance ensure the precision and smooth operation of the spindle. The main shaft and the bearing are separated by a lubricating film, so the theoretical life is very long. Therefore, dynamic and static pressure bearings have the characteristics of high bearing capacity, high rigidity and long life, and have great application potential in high-speed and high-precis...

Claims

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Application Information

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IPC IPC(8): F16C32/06
CPCF16C32/0644F16C32/0655
Inventor 李鹏举张征凯温庆国
Owner 洛阳神实轴承科技有限公司
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