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Planet gear reducer

A planetary gear reduction and planetary gear technology, which is applied in the field of planetary gear reducers, can solve the problems of high precision requirements, reduced precision, and reduced operation precision of the reducer, and achieves the effect of improving the transmission precision and solving the reduced precision.

Active Publication Date: 2013-01-16
ZHEJIANG SANKAI MECHANICAL & ELECTRICAL
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  • Abstract
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Problems solved by technology

However, there are still some problems in this method of improving the precision of the reducer: first, the precision requirements of the parts are high, the processing is very difficult, and the processing cost is also high; the second is that even if the processed high-precision parts are assembled into a high-precision machine, but these high-precision parts will wear out after long-term use, which will still reduce the accuracy, resulting in a reduction in the operating accuracy of the entire reducer

Method used

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Embodiment Construction

[0016] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0017] Such as figure 1 , 2 , 3 and 4, the planetary gear reducer includes an output planetary carrier 10, an inner ring gear 8 sleeved outside the output planetary carrier 10, a sun gear A1 and a sun gear B3 as input ends, and three sets of planetary gear structures, Each set of planetary gear structure includes the planetary gear shaft 9 installed on the planetary carrier as the output end and the planetary gear A6 and the planetary gear B7 fixedly sleeved on the planetary gear shaft 9, and the planetary gear A6 and the planetary gear B7 are respectively externally meshed on the The above-mentioned sun gear A1 and sun gear B3 and the above-mentioned ring gear 8 are internally meshed. The sun gear A1 and the sun gear B3 ...

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Abstract

The invention provides a planet gear reducer, belongs to the technical field of machinery, and solves the problem that transmission precision of the existing planet gear reducer is reduced due to abrasion of the planet gear reducer after long-term operation. The planet gear reducer comprises an output planet carrier, an inner gear ring, a sun gear A, a sun gear B and a plurality sets of planet gear structures. Each set of planet gear structure comprises a planet gear shaft, a planet gear A and a planet gear B. The sun gear A and the sun gear B are provided with a spline A and a spline B respectively. Both the spline A and the spline B are provided with a plurality of connecting ends. A gap is reserved between each two adjacent connecting ends. Each connecting end is provided with a helical surface with a helical angle alpha. The sun gear A is provided with a first inner hole. A pressure spring is mounted in the first inner hole. The planet gear reducer is capable of compensating abrasion so as to improve transmission precision.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a planetary gear reducer. Background technique [0002] With the continuous development and progress of science and technology and the popularization of CNC machine tools, the requirements for the precision of reducers are also getting higher and higher. At present, to improve the precision of the reducer, it is generally to process high-precision parts first and then install these high-precision parts to form a high-precision reducer, which is divided into "ultra-precision arm gap, precision arm gap, and standard arm gap". However, there are still some problems in this method of improving the precision of the reducer: first, the precision requirements of the parts are high, the processing is very difficult, and the processing cost is also high; the second is that even if the processed high-precision parts are assembled into a high-precision machine, but the high-precision parts ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/32F16H57/08F16H57/023F16H57/12
Inventor 江建斌江建敏关放柳
Owner ZHEJIANG SANKAI MECHANICAL & ELECTRICAL
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