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High-rigidity RV speed reducer for industrial robot

An industrial robot, high-rigidity technology, used in manipulators, manufacturing tools, mechanical equipment, etc., to achieve the effects of low cost, improved bearing rigidity, and simple process

Inactive Publication Date: 2017-08-18
SUZHOU HUAZHEN IND RV REDUCER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The purpose of the present invention is to provide a high-rigidity RV reducer for industrial robots, which uses domestic machine tools and conventional manufacturing precision to solve the technical problem of high-rigidity boom bearings, thereby ensuring the total return difference including the hysteresis caused by elastic deformation under load. Hysteresis can not exceed 6arc min

Method used

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  • High-rigidity RV speed reducer for industrial robot
  • High-rigidity RV speed reducer for industrial robot
  • High-rigidity RV speed reducer for industrial robot

Examples

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Embodiment Construction

[0042] Such as Figure 1~3 As shown, a high-rigidity RV reducer for an industrial robot includes a cycloid and a planetary component, and the cycloid component includes left and right rigid discs 1, 24, pin gear housing 11, pins in the half-buried hole of the pin gear housing 25. The first and second cycloidal wheels 13, 14 and the uniformly distributed crankshaft 19, the uniformly distributed flange 2 on the end surface of the left rigid disc 1 passes through the corresponding The hole is connected with the right rigid disk 24 to form a rigid body. The left and right rigid disks 1, 24 are respectively supported by the first and second bearings 10, 15 in the inner holes on both sides of the pin gear housing 11. The planetary components include the sun gear 4 and the planetary gear 7, the sun gear 4 is arranged on the input shaft 22, and the input shaft 22 is supported in the center holes of the left and right rigid discs 1, 24 with the third and fourth bearings 3, 23 respectiv...

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Abstract

The invention relates to the technical field of a speed reducer for an industrial robot, in particular to a high-rigidity RV speed reducer for the industrial robot. The high-rigidity RV speed reducer comprises a left rigid disk, a right rigid disk, a pin gear housing, a pin, two cycloidal wheels, a cycloidal component and a planetary component, wherein the cycloidal component is uniformly distributed with crankshafts, and the planetary component comprises a sun wheel and a planet wheel. The high-rigidity RV speed reducer is characterized in that two shaft circlips are arranged on eccentric sections of the two sides of a crankshaft spacer, and two turning arm bearing assemblies are arranged between the circlips and the spacer; each turning arm bearing assembly comprises a ferrule, a circlip and a radial bearing; the two radial bearings are in an axial pretension structure, and the two ferrules are matched with corresponding holes of the cycloidal wheels or are melted into the holes; and the two radial bearings are deep groove ball bearings, or radial-thrust ball bearings, or single-row tapered roller bearings or single double-row taper roller bearings. The high-rigidity RV speed reducer has the beneficial effects that the turning arm bearings on the crankshafts adopt the axial pretension structure, thus the bearing rigidity is improved, and the total return difference including the return difference caused by elastic deformation of the turning arm bearings is no more than 6arc min; and the high-rigidity RV speed reducer is a domestic machine tool and adopts normal manufacturing accuracy and a simple process, and the cost is reduced by 55-70%.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of reducers for industrial robots. It adopts domestic machine tools, conventional manufacturing precision, and the total hysteresis caused by elastic deformation does not exceed 6 arc min. It is a high-rigidity RV reducer for industrial robots. [0003] 【Background technique】 [0004] The national 863 robot expert said: "The high manufacturing cost of the whole machine enterprise derived from the bottleneck of key components has become a serious constraint on the development of China's industrial robot market. In particular, high-precision robot joint reducers mainly rely on imports. At present, 75 % of the market is monopolized by Nabtesco and Harmonic Drive." [0005] Over the years, the Ministry of Science and Technology has repeatedly issued the 863 plan for RV reducers, hoping that my country's industrial robot companies will no longer import expensive Japanese RV reducers, such as the two resea...

Claims

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Application Information

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IPC IPC(8): B25J18/00F16H1/32F16H57/021F16H57/023F16H57/02
CPCF16H1/32F16H57/021F16H57/023B25J18/00F16H2057/02069F16H2001/327
Inventor 吴声震
Owner SUZHOU HUAZHEN IND RV REDUCER CO LTD
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