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Precision cycloid decelerator

A cycloid reducer, precise technology, applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., can solve the problem of increase in pin size, transmission power of reducer, torque and stiffness limitation, and increase in eccentricity And other issues

Active Publication Date: 2011-11-16
ZHEJIANG HENGFENGTAI REDUCER MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the FA transmission has improved the RV transmission by increasing the size of the arm bearing, reducing the pin tooth diameter, increasing the pin size, and increasing the eccentricity, etc., the size of the arm bearing and the pin tooth diameter are still limited. The influence of the transmission ratio and the size of the output structure limits the power, torque and stiffness transmitted by the reducer

Method used

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  • Precision cycloid decelerator
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Embodiment Construction

[0017] As shown in the figure, the present invention includes a rotating arm 1 and an eccentric sleeve 2 fixed outside the rotating arm 1. The rotating arm 1 adopts a splined rotating arm, which is connected with an external input shaft 14 through a key 15, which is convenient for processing and installation. The eccentric sleeve 2 is connected to the cycloidal wheel through the rotating arm bearing 3, and the cycloidal wheel is matched with the pin tooth pin fixed on the pin gear housing. The eccentric sleeve 2 fixed outside the rotating arm 1 is arranged in multiple misalignments, and each eccentric sleeve 2 The cycloidal wheel is divided into two groups: the reverse cycloidal wheel 4 and the forward cycloidal wheel 5. The reverse cycloidal wheel 4 and the forward cycloidal wheel 5 have different numbers of teeth and have a connection transmission hole 6. The reverse cycloidal wheel 4 and the forward direction The cycloid wheel 5 is connected by a connecting shaft 7 passing t...

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Abstract

The invention relates to a precision cycloid decelerator, comprising rotating arms and eccentric sleeves fixed outside the rotating arms. The eccentric sleeves are connected with cycloid wheels through rotating arm bearings. The cycloid wheels are matched with needle tooth pins fixed on needle tooth shells. The plurality of eccentric sleeves fixed outside the rotating arms are arranged in a staggered way. The cycloid wheels outside the eccentric sleeves are classified into a reverse cycloid wheel set and a forward cycloid wheel set. The reverse cycloid wheels and the forward cycloid wheels are different in tooth number and provided with connection transmission holes. The reverse cycloid wheels and the forward cycloid wheels are connected through a connection shaft passing through the connection transmission holes. The needle tooth shells are classified into a fixed needle tooth shell and an output needle tooth shell. The reverse cycloid wheels are matched with fixed needle tooth pins fixed on the fixed needle tooth shell. The forward cycloid wheels are matched with following needle tooth pins fixed on the output needle tooth shell. By means of the design, the precision cycloid decelerator disclosed by the invention has the advantages of high precision, high efficiency, high rigidity, high bearing capability and long service life; and the precision cycloid decelerator is particularly applicable to being used in a heavy-load industrial robot.

Description

technical field [0001] The invention relates to a precision cycloid reducer. Background technique [0002] At present, the reducers in heavy-duty industrial robots generally use the Rotate Vector (RV) reducer of Nabtesco Teijin Seiki Co., Ltd. of Japan and the high-performance harmonic reducer of Harmonic Drive of Japan. [0003] Since the transmission of the harmonic reducer realizes the speed conversion and power transmission through the radial elastic deformation of the thin-walled flexible gear, its bearing capacity and transmission stiffness are relatively low, and the flexible gear is also prone to fatigue damage due to periodic deformation. It is mainly used for precision transmission systems with medium and light loads, but it is actually not suitable for precision reduction transmissions for heavy-duty industrial robots. [0004] The RV reducer (Rotate Vector Reducer) of Teijin Seiki Co., Ltd. is composed of a first-stage planetary gear transmission and a first-sta...

Claims

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Application Information

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IPC IPC(8): F16H1/32
Inventor 孔向东叶胜康董平
Owner ZHEJIANG HENGFENGTAI REDUCER MFG
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