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A Flexible Coupling Applicable to Precision Air-floating Turntable

A technology of flexible couplings and air-floating turntables, which is applied in the direction of elastic couplings, couplings, mechanical equipment, etc., and can solve the problems of inability to use precisely controlled transmission angles, poor resistance to additional forces and moments, and rigidity Small problems, to achieve good market prospects, low production costs, long service life

Active Publication Date: 2021-09-03
XIAN TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The misalignment of the input shaft and output shaft will lead to the reduction of bearing accuracy, and even affect the normal operation of the gas static pressure bearing;
[0004] Additional forces and moments often have serious consequences. Compared with rolling bearings, aerostatic bearings have lower stiffness and poorer ability to resist additional forces and moments
[0005] The ideal coupling connecting the gas static pressure turntable and the motor should satisfy the infinitely large torsional stiffness and the infinitely small stiffness in the direction of other degrees of freedom, such as the patent CN102042346A applied by Wuxi Second Bearing Co., Ltd., the patent CN204025414U applied by Shaanxi Institute of Technology and The patent CN102359507A applied by Jinan Xinluquan Electronics Co., Ltd. respectively uses flexible cloth, flexible cables and steel sheets as flexible parts, and the stiffness in the direction of torsional freedom and other degrees of freedom is small. Although omnidirectional compensation can be achieved, it cannot meet The goal of synchronous transmission cannot be used in some occasions that require precise control of the transmission angle

Method used

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  • A Flexible Coupling Applicable to Precision Air-floating Turntable
  • A Flexible Coupling Applicable to Precision Air-floating Turntable
  • A Flexible Coupling Applicable to Precision Air-floating Turntable

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Experimental program
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Effect test

Embodiment 1

[0035] Such as image 3 As shown, a flexible coupling that can be applied to a precision air bearing turntable mainly includes: reed 1, connecting plate 2, pressure plate 3, reed splint 4, lower clamping shaft ferrule 5, bolt 6 , Upper clamping shaft ferrule 7, upper splint 8 and lower splint 9.

[0036] This embodiment increases the upper splint 8 and the lower splint 9 on the original basis, and the upper splint 8 and the lower splint 9 are respectively connected with the reed 1 by bolts, which greatly strengthens the tear resistance of the reed and can transmit more big moment. It is another structure of the present invention.

Embodiment 2

[0038] Such as Figure 4 As shown, a flexible coupling that can be applied to a precision air-floating turntable mainly includes: a reed splint 4, a bolt 6, a connecting plate 2, an upper clamping shaft ferrule 7 and a lower clamping shaft clamp Set of 5.

[0039] In this embodiment, the square plate part and the connecting plate of the upper and lower clamping shaft ferrules are respectively designed as a double hinge structure (flexible hinge), and the double hinge structure is as follows Figure 5 As shown, the hinge part is equivalent to the reed 1 in the first embodiment, and the connecting part of the two hinges is equivalent to the upper splint 8 and the lower splint 9 in the first embodiment. The structure can be realized in the form of machining on one part.

[0040] Due to the low stiffness of the air-floating turntable, the ability to resist additional forces and moments is poor, so the interference between the input shaft and the output shaft will reduce its accu...

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PUM

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Abstract

The invention relates to the technical field of shaft couplings, in particular to a flexible shaft coupling applicable to precision air-floating turntables. It can compensate in all directions and realize synchronous transmission at the same time. The flexible coupling of the present invention is a parallel reed structure, including reeds, connecting plates, pressure plates, reed splints, bolts and clamping shaft ferrules, the clamping ferrules have connecting plates, and the connecting plates Both ends are milled with a platform and threaded holes. After being pressed by a pressure plate, one end of the reed is connected with a bolt. The other end of the reed is connected with a connecting plate with a threaded hole after being pressed by a pressure plate. The other end of the connecting plate is Connect one end of the other reed in the same way, and the other end of the reed is respectively clamped with a pressure plate and connected to the reed splint by bolts. The connection methods of other reeds are the same. Two platforms are milled out on the left and right sides of the reed splint and are evenly provided with threaded holes.

Description

technical field [0001] The invention relates to the technical field of shaft couplings, in particular to a flexible shaft coupling applicable to precision air-floating turntables. Background technique [0002] Coupling is a device that connects two shafts or shafts and rotating parts, and rotates together during the process of transmitting motion and power, and does not disengage under normal conditions. During the operation of the machine, the misalignment of the input shaft and output shaft will generate additional force and moment on the rotor and bearing system; [0003] The misalignment of the input shaft and output shaft will lead to the reduction of bearing accuracy, and even affect the normal operation of the gas static pressure bearing; [0004] Additional force and moment often bring serious consequences. Compared with rolling bearings, aerostatic bearings have lower stiffness and poorer ability to resist additional force and moment. [0005] The ideal coupling c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D3/56
CPCF16D3/56
Inventor 王洪喜刘敏王亚晓梁文宏王冠伟田慧慧贾建军
Owner XIAN TECH UNIV