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Speed reducer

A technology of reducer and planetary gear, which is applied in the direction of mechanical equipment, gear transmission, belt/chain/gear, etc., can solve the problems of low input speed, difficulty in large torque transmission, difficulty in large reduction ratio, etc., and achieve low cost , high reliability, and simple manufacturing process

Inactive Publication Date: 2016-07-13
袁廷华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cycloid gear reducer and harmonic reducer both have eccentric shaft mechanism, the input speed is low, and it is not easy to achieve high torque transmission, and the reduction ratio is not easy to increase

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0023] See figure 1 and figure 2 , a speed reducer, including a housing 1, an inner ring 2 arranged in the housing 1 and an outer ring 3 arranged on the periphery of the inner ring 2, and the outer wall of the inner ring 2 includes a first sun gear 4 and a second sun gear 5, the inner wall of the outer ring 3 contains a first ring gear 6 and a second ring gear 7, a set of first planetary gears 8 are meshed between the first sun gear 4 and the first ring gear 6, and the second A set of second planetary gears 9 is meshedly connected between the sun gear 5 and the second ring gear 7, a set of first planetary gears 8 is positioned and connected inside the first ring gear 6 through the first planetary gear cage 10, and a set of The second planetary gear 9 is positioned and connected inside the second ring gear 7 through the second planetary gear cage 11, and the second planetary gear cage 11 is fixedly connected with a transmission shaft 12; wherein, the first planetary gear cage...

Embodiment 2

[0030] See image 3 , a speed reducer, including a housing 1, an inner ring 2 disposed in the housing 1 and an outer ring 3 disposed on the periphery of the inner ring 2, the outer wall of the inner ring 2 includes a first sun gear 4 and a second The sun gear 5 includes a first ring gear 6 and a second ring gear 7 on the inner wall of the outer ring 3, and a set of first planetary gears 8 are engaged and connected between the first sun gear 4 and the first ring gear 6, A set of second planetary gears 9 is meshedly connected between the second sun gear 5 and the second ring gear 7, and a set of first planetary gears 8 is positioned and connected inside the first ring gear 6 through the first planetary gear cage 10. A set of second planetary gears 9 is positioned and connected inside the second ring gear 7 through a second planetary gear cage 11, and the second planetary gear cage 11 is fixedly connected with a transmission shaft 12; wherein, the first planetary gear cage 10 Wh...

Embodiment 3

[0033] See Figure 4 , a speed reducer, including a housing 1, an inner ring 2 disposed in the housing 1 and an outer ring 3 disposed on the periphery of the inner ring 2, the outer wall of the inner ring 2 includes a first sun gear 4 and a second The sun gear 5 includes a first ring gear 6 and a second ring gear 7 on the inner wall of the outer ring 3, and a set of first planetary gears 8 are engaged and connected between the first sun gear 4 and the first ring gear 6, A set of second planetary gears 9 is meshedly connected between the second sun gear 5 and the second ring gear 7, and a set of first planetary gears 8 is positioned and connected inside the first ring gear 6 through the first planetary gear cage 10. A set of second planetary gears 9 is positioned and connected inside the second ring gear 7 through a second planetary gear cage 11, and the second planetary gear cage 11 is fixedly connected to a transmission shaft 12; wherein, the outer ring 3 is fixedly connected...

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Abstract

The invention discloses a speed reducer which comprises an inner ring and an outer ring arranged at the periphery of the inner ring.The outer wall of the inner ring is provided with a first sun gear and a second sun gear, and the inner wall of the outer ring is provided with a first inner gear ring and a second inner gear ring; a set of first planet gears are connected between the first sun gear and the first inner gear ring in a meshed mode, a set of second planet gears are connected between the second sun gear and the second inner gear ring, the first planet gear set is positioned and connected inside the first inner gear ring through a first planet gear holder, the second planet gear set is positioned and connected inside the second inner gear ring through a second planet gear holder, and the second planet gear holder is fixedly connected with a transmission shaft.According to the speed reducer, the properties of high speed ratio speed reducing, high torque transmission, high rotation speed inputting and high precision transmission are achieved by adopting the two sets of planet gear structures with the different speed reducing ratios, and the advantages of being simple in technology, easy to manufacture, low in cost and high in reliability are achieved.

Description

technical field [0001] The invention relates to the field of mechanical speed reduction transmission, in particular to a speed reducer. Background technique [0002] At present, most of the large speed ratio reducers used in industry are cycloidal reducer and harmonic reducer. Cycloidal gear reducer and harmonic reducer both have eccentric shaft mechanism, the input speed is low, and it is not easy to achieve high torque transmission, and the reduction ratio is not easy to increase. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a speed reducer, which can realize a rotational speed output with a large speed reduction ratio by using two planetary gear sets with a small difference in speed reduction ratio. [0004] Technical scheme of the present invention is: [0005] A speed reducer, including an inner ring and an outer ring arranged on the periphery of the inner ring, the outer wall of the inner ring includes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/32
CPCF16H1/32
Inventor 袁廷华
Owner 袁廷华
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