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High-precision eccentricity-adjustable eccentric shaft

A technology of eccentric shaft and eccentric distance, which is applied in the direction of eccentric shaft, can solve the problems of poor combination accuracy of eccentric sleeve and eccentric shaft, reduce the service life of parts, and easily cause large noise, so as to achieve low noise, long service life, The effect that is not easy to impact

Inactive Publication Date: 2011-11-16
武勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-precision eccentric shaft with adjustable eccentric distance, which overcomes the poor combination precision between the eccentric sleeve and the eccentric shaft existing in the existing adjustable eccentric shaft, which is easy to produce impact during work, and is easy to cause damage. Larger noise, defects that reduce the service life of parts

Method used

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  • High-precision eccentricity-adjustable eccentric shaft
  • High-precision eccentricity-adjustable eccentric shaft

Examples

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Effect test

Embodiment Construction

[0010] Install the two keys (3) in the key grooves at both ends of the eccentric shaft respectively, and install the two eccentric sleeves (2) symmetrically from both ends of the eccentric shaft (1) in the middle of the eccentric shaft (1), and use the bolts (4) Fasten the left and right eccentric sleeves (2) together; if it is necessary to adjust the eccentric distance, loosen the bolts (4) so ​​that the left and right eccentric sleeves (2) are separated from the key (3), and the left and right eccentric sleeves ( 2) At the same time, rotate the same angle relative to the eccentric shaft. Since the size of the eccentric distance O1-O3 is related to the size of the included angles O1, O2, and O3, it can be realized only by adjusting the sizes of the included angles O1, O2, and O3.

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Abstract

The invention discloses a high-precision eccentricity-adjustable eccentric shaft, wherein a circular table concentric with an eccentric circle is manufactured in the middle of the eccentric circle of the eccentric shaft; each eccentric bushing is cut into two bilaterally symmetrical parts along a plane vertical to a self axis of the eccentric bushing; large holes and small holes which are concentric are respectively manufactured in the middle of each eccentric bushing; free sizes of the large holes and the small holes are respectively the same as the diameters of the circular table and the eccentric circle on the eccentric shaft; in a cooperative relationship, the large holes and the circular table are in tight fit; the small holes and the eccentric circle are in clearance fit; a plurality of key slots are uniformly manufactured on the middle small holes of each eccentric bushing along a circumferential direction; each eccentric bushing and the eccentric shaft are located through a key in a circumferential direction; and left and right eccentric bushings are fixed together through a bolt so as to form an integral body.

Description

technical field [0001] The invention relates to an eccentric shaft, in particular to an eccentric shaft with high precision and adjustable eccentric distance, and belongs to the technical field of general mechanical parts. Background technique [0002] The eccentric shaft is an important part of many mechanical equipment, such as engines, air compressors, punching machines, etc. In some mechanical equipment, it is sometimes necessary to use eccentric shafts with different eccentric distances according to the specific nature and requirements of the work. For this reason, The eccentric distance of the eccentric shaft needs to be adjustable. The existing eccentric shaft with adjustable eccentric distance generally installs one eccentric sleeve on the other eccentric shaft through a key and groove or spline, and selects the eccentric sleeve and the eccentric shaft in the circumferential direction. The eccentric shaft with adjustable eccentric distance, because the positioning be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C3/18
Inventor 武勇
Owner 武勇
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