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RV speed reducer with crossed roller bearings

A cross-roller bearing and reducer technology, which is applied to transmission parts, gear transmissions, belts/chains/gears, etc., can solve the problems of increased production costs, increased parts, and increased difficulty, and achieves reduced production costs, The effect of reduced assembly difficulty and convenient operation

Inactive Publication Date: 2016-10-12
GUANGZHOU HAOZHI ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual processing and assembly, the preload of the angular contact ball bearings on the planet carrier needs to be guaranteed within a certain range, and the corresponding angular contact ball bearings need to be adjusted according to the size of the selected angular contact ball bearings during operation. Gaskets, so the difficulty of assembly becomes greater, and at the same time, the increase in production costs due to the increase in parts

Method used

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  • RV speed reducer with crossed roller bearings
  • RV speed reducer with crossed roller bearings
  • RV speed reducer with crossed roller bearings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] refer to Figure 1-Figure 4 , this embodiment provides an RV reducer with crossed roller bearings, including a planetary carrier assembly, a pinion housing 2, an input shaft 3, a planetary wheel 4, a crankshaft 5, and a cycloidal wheel 6;

[0031] The planet carrier assembly includes an output disc 11 and a supporting flange 12, and the output disc 11 and the supporting flange 12 are connected by screws; At the end opening, a ferrule assembly 7 is provided between the output disc 11 and the pinion housing 2, and a ferrule assembly 7 is provided between the support flange 12 and the pinion housing 2; The ring assembly 7 includes a cage 71 and a bearing outer ring 72 .

[0032] Two left crankshaft installation holes 111 and one left input shaft installation hole 112 are opened on the output disk 11 in the axial direction; two right crankshaft installation holes 121 and one right crankshaft installation hole 121 are opened on the support flange 12 axially. The right inpu...

Embodiment 2

[0045] The feature of this embodiment is that the other end of each crankshaft is installed in the right crankshaft mounting hole of the support flange through a cross roller bearing. Others are the same as in Example 1.

Embodiment 3

[0047] The feature of this embodiment is: one end of each crankshaft is installed in the left crankshaft mounting hole of the output disc through a tapered roller bearing or an angular contact ball bearing. Others are the same as in Example 1.

[0048] Other examples:

[0049] In the present invention, the supporting manner of the planet carrier and the crankshaft is not limited to the combination of crossed roller bearings and angular contact ball bearings, but can also be a combination of crossed roller bearings and tapered roller bearings. At the same time, the cross roller bearing is not only limited to realize the support of the support flange and the crank shaft, but also can be used to realize the support of the output disk and the crank shaft. The positioning of the outer ring of the bearing is not only limited to the circlip for the hole, but other positioning methods for the outer ring of the bearing can also be used.

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Abstract

The invention discloses an RV speed reducer with crossed roller bearings. The RV speed reducer comprises a planet carrier assembly, a pin gear housing, an input shaft, planet gears, crankshafts and cycloidal gears. The planet carrier assembly comprises an output disc and a supporting flange. A plurality of gear pins are installed on the inner side wall of the pin gear housing. A first gear is arranged at one end of the input shaft. The two planet gears are externally meshed with the first gear. One end of each crankshaft is installed in a left crankshaft installation hole through an angular contact ball bearing or a conical roller bearing, and the other end of each crankshaft is installed in a right crankshaft installation hole through the corresponding crossed roller bearing. Each crankshaft is provided with two eccentric parts. A through hole of each cycloidal gear is connected with the corresponding eccentric part through a needle bearing. Each cycloidal gear is internally meshed with the corresponding gear pin. The RV speed reducer has the advantages of being good in transmission performance and convenient to machine, disassemble and assemble; meanwhile, the assembly difficulty is lowered, the production cost is reduced, and the rigidity of the speed reducer is improved through the crossed roller bearings.

Description

technical field [0001] The present invention relates to an RV reducer, in particular to an RV reducer with crossed roller bearings. Background technique [0002] RV transmission is a new type of transmission, developed on the basis of the traditional cycloidal pinwheel, not only overcomes the shortcomings of the general cycloidal pinwheel, but also because of its small size, light weight, large transmission ratio range, long life The characteristics of long length, good precision retention and stable transmission have increasingly attracted widespread attention at home and abroad. Compared with the harmonic reducer commonly used in robots, it has higher fatigue strength, better rigidity, and more stable hysteresis accuracy. Therefore, RV reducers are mostly used in high-precision robot transmissions in many countries in the world. [0003] For general RV reducers, there are crankshafts, output discs and planetary carriers composed of supporting flanges, input shafts, planet...

Claims

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Application Information

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IPC IPC(8): F16H1/32F16H57/021
CPCF16H1/32F16H57/021
Inventor 雷群黄林汤秀清
Owner GUANGZHOU HAOZHI ELECTROMECHANICAL
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