Structure of novel high-precision eccentric shaft
An eccentric shaft, high-precision technology, used in the structure of high-precision eccentric shafts and the structure of new high-precision eccentric shafts, can solve the problem of poor combining accuracy between eccentric sleeves and eccentric shafts, reducing the service life of parts, and easily causing large noises, etc. problems, to achieve the effect of not easy noise, eliminating gaps, and not easy to impact
Inactive Publication Date: 2012-11-28
叶风
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Problems solved by technology
[0003] The purpose of the present invention is to provide a new type of high-precision eccentric shaft structure, which overcomes the poor combination accuracy between the eccentric sleeve and the eccentric shaft existing in the existing adjustable eccentric shaft, which is prone to impact during work and easily causes large Noise, defects that reduce the service life of parts
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[0009] The eccentric shaft mechanism has two keys 3, and the two keys 3 are respectively installed in the key grooves at both ends of the eccentric shaft. The two eccentric sleeves 2 are connected together; when the eccentric distance needs to be adjusted, the bolt 4 is loosened, so that the left and right eccentric sleeves 2 are separated from the key 3, and the left and right eccentric sleeves 2 are rotated at the same angle relative to the eccentric shaft at the same time, due to the eccentric distance The size of O1-O3 is related to the size of the included angles O1, O2, and O3, so it can be realized only by adjusting the sizes of the included angles O1, O2, and O3.
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The invention discloses a structure of a novel high-precision eccentric shaft. An eccentric shaft mechanism is provided with two keys; the two keys are respectively arranged in the key slots at the two ends of an eccentric shaft; two eccentric sleeves are symmetrically arranged in the middle of the eccentric shaft from the two ends of the eccentric shaft respectively; the left eccentric sleeve and the right eccentric sleeve are connected together by a bolt; when the eccentric distance needs to be adjusted, the bolt is loosened, so that the left eccentric sleeve and the right eccentric sleeve are separated from the keys, and the left eccentric sleeve and the right eccentric sleeve are rotated at the same angle relative to the eccentric shaft at the same time; and because the eccentric distance O1-O3 is related to the included angles O1, O2 and O3, the eccentric distance can be adjusted by only adjusting the included angles O1, O2 and O3.
Description
technical field [0001] The invention relates to a structure of a high-precision eccentric shaft, in particular to a novel structure of a high-precision eccentric shaft, belonging 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 positi...
Claims
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IPC IPC(8): F16C3/18
Inventor 叶风
Owner 叶风