Gas floating turntable structure
A technology of air-floating turntable and air-floating bearing, which is applied in the direction of machine/bracket, bearing, shaft, etc., which can solve the problems of increased rotation accuracy deviation of the turntable, difficulty in meeting the requirements of large bearing capacity, and reduced bearing capacity of the bearing platform. , to achieve the effect of improving precision, strong rigidity and increasing bearing capacity
Active Publication Date: 2014-09-17
天津中精微仪器设备有限公司
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Problems solved by technology
[0003] However, based on the above-mentioned turntable structure, due to the small contact area between the bearing inner ring and the bearing platform, the bearing capacity of the bearing platform is reduced, and it is difficult to meet the requirements of large bearing capacity; in addition, because the drive motor and one end of the bearing inner ring Connection, such a connection will increase the accuracy deviation of the turntable rotation
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[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it by referring to the description.
[0024] like figure 1 As shown, the air-floating turntable structure of the present invention includes a base 1 with mounting screw holes 5 and a stator (not shown) for driving a motor 2; It is fixed on the base 1 to support the outer ring 6 of the air bearing; the outer ring 6 of the air bearing is fixed on the base 1 and supported by a fixed object 3; the inner ring 7 of the air bearing is sleeved on the air bearing In the outer ring 6, the rotor (not shown) of the driving motor 2 corresponding to the stator is provided, the rotor is fixedly connected with the inner ring of the air bearing, and the inner ring 7 of the air bearing is connected with the inner ring of the air bearing The cavity space between the outer rings 6 is filled with an air film.
[0025] In the air bear...
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The invention discloses a gas floating turntable structure. The gas floating turntable structure comprises a base, a gas floating bearing inner ring and a gas floating bearing outer ring, wherein the gas floating bearing outer ring is fixed to the base; the base is provided with a stator of a driving motor; the gas floating bearing inner ring is sleeved in the gas floating bearing outer ring; air films are fully filled in a cavity space between the gas floating bearing inner ring and the gas floating bearing outer ring; and the gas floating bearing inner ring is provided with a driving motor rotor corresponding to the stator. In the gas floating turntable structure, a bearing platform is the top surface of the gas floating bearing inner ring, so that the bearing area of the bearing platform is increased, the bearing force is increased, and the rigidity is the highest. In addition, the air films are fully filled in the cavity space between the gas floating bearing inner ring and the gas floating bearing outer ring, and the air films have certain rigidity and can provide certain anti-tilting moment to support and limit the gas floating bearing inner ring, so that the rotation accuracy of gas floating turntables is improved.
Description
technical field [0001] The invention relates to a turntable structure, in particular to an air-floating turntable structure. Background technique [0002] Most of the turntable structures in the prior art are coaxial bearing inner rings and bearing outer rings arranged on the base, wherein the bearing outer ring mainly plays a supporting role, and one end of the bearing inner ring is connected to the drive motor, and the other end Then connect to the hosting platform. [0003] However, based on the above-mentioned turntable structure, due to the small contact area between the bearing inner ring and the bearing platform, the bearing capacity of the bearing platform is reduced, making it difficult to meet the requirements of large bearing capacity; in addition, because the drive motor and one end of the bearing inner ring Connection, such a connection will increase the accuracy deviation of the turntable rotation. Contents of the invention [0004] Aiming at the drawbacks ...
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IPC IPC(8): F16M11/06F16M11/18F16M11/42F16C32/06
CPCF16C32/0614F16C2322/39
Inventor 张瑞杰
Owner 天津中精微仪器设备有限公司