Series of simple planetary gear reducer
A planetary gear reduction and planetary gear technology, which is applied in the field of simple planetary gear reducer series, can solve the problems of the large-scale reducer and the limit of the output torque, so as to reduce the total number of parts, increase the output torque, and reduce the cost of parts. reduced effect
Active Publication Date: 2014-06-25
SUMITOMO HEAVY IND LTD
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Problems solved by technology
Therefore, in the simple planetary gear reducer series, when you want to share parts such as internal gears between reducers with different reduction ratios, the output torque is limited.
In addition, if the diameter of the planetary pin is increased to ensure the output torque, the size of the reducer itself will increase.
Method used
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Embodiment Construction
[0034] Hereinafter, an example of embodiment of the present invention will be described in detail with reference to the drawings.
[0035] As shown in the background art, the series of simple planetary gear reducers involved in the present invention are composed of simple planetary gear reducers with different reduction ratios.
[0036] In the first embodiment of the present invention, using figure 1 , figure 2 An example of the first gear series in the simple planetary gear reducer series will be described. In the simple planetary gear speed reducer 100 (200) of the first pair series, in the radial direction of the wheel carrier body 124 (224), the outer side of the supporting position of the planetary pin 120 (220) is equipped with a support body 124 ( 224) bearings (main bearings) 134, 138 (234, 238), the inner rings of the bearings 134, 138 (234, 238) are integrally formed with the wheel frame body 124 (224), and are integrally formed in the housing 142 (242) An intern...
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The present invention provides a series of simple planetary gear reducer. Size maximization of the reducers which form the series is not required while the components such as an internal gear are not required, and the output torque is increased. The series of the simple planetary gear reducer (100) with different reduction ratios is provided with the following components: an inner gear (122) which is internally engaged with a planetary gear (116), a planetary pin (120) which rotatably supports the planetary gear, and a gear carrier (124) which supports the planetary pin and is synchronous with an orbital component of the planetary gear, wherein a first auxiliary series is provided. The first auxiliary series is provided with bearings (134,138) which support the gear carrier outside the planetary gear in a radius direction of the gear carrier. The inner rings of the bearings (134,138) are formed integrally with the gear carrier. A housing (142) which is provided with the inner gear is shared. Furthermore the supporting positions of a sun gear (114), the planetary gear and the planetary pin in the wheel carrier are varied according to the reduction ratio.
Description
technical field [0001] This application claims priority based on Japanese Patent Application No. 2009-203783 filed on September 3, 2009. All the content of the application is used in this specification by reference. [0002] The invention relates to a series of simple planetary gear reducers. Background technique [0003] A series of simple planetary gear reducers that have different reduction ratios and include a sun gear, a planet gear that meshes with the sun gear, an internal gear that meshes with the planet gear, a planet pin that rotatably supports the planet gear, and a planet pin that supports the planet The carrier body is synchronized with the revolution components of the planetary gears. For example, in the patent document 1 of this series of reducers, the internal gear is used as a common part in the series. [0004] Patent Document 1: Japanese Unexamined Patent Publication No. 2007-64365 [0005] However, when the internal gear integrally formed in the housin...
Claims
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IPC IPC(8): F16H1/28
CPCF16H57/033F16H1/28
Inventor 石塚正幸
Owner SUMITOMO HEAVY IND LTD