Composite planetary actuating mechanism

A technology of actuators and composite planets, which is applied in the direction of mechanical equipment, engine components, gear transmissions, etc., can solve the problems of large volume, high cost, and difficulty in popularization and application, and achieve the effect of small volume, low price, and foreign exchange saving

Inactive Publication Date: 2004-07-28
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, electric actuators are mostly used for valve speed regulation, and its structure generally adopts multi-stage speed control boxes, and worm mechanisms (including imported products) are also useful, but most of them are large in size (many times larger than valves) and high in cost (the price is between 1 and 2). 2,000 yuan to 10,000 yuan), which is 5 to 20 times the price of the valve itself, so it is difficult to popularize and apply, and it is regarded as a major difficulty in valve automation control

Method used

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  • Composite planetary actuating mechanism
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Embodiment Construction

[0011] The present inventor is described in detail below in conjunction with accompanying drawing and embodiment.

[0012] As shown in Figures 1 and 2, the inventor mainly includes a motor 1, a sun gear 2, a planetary gear set, a shaft coupling, a bearing and an inner gear ring, and the motor 1 shaft 19 is a tubular hollow structure, and the sun gear 2 is installed on On the shaft 19 of the motor 1, a 3-5 stage speed regulating mechanism composed of a planetary gear set meshes with the sun gear 2 on the inside and meshes with the inner gear ring 5 on the outside. The bearing 6 is located in the planetary gear seat and the bearing frame 7 in the planetary gear set. Between, the last-stage planetary gear seat 4 is fixedly connected with the coupling 9, and the coupling 9 (through the key 11 or pin) is installed together with the valve stem 12 on the valve body 13; it also includes a through shaft 17, so One end of the threaded mandrel 17 (through the pin 15) is fixedly connected...

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Abstract

The present invention relates to a valve speed-regulating technique, in the concrete, it is a composite planetary actuating mechanism. It includes motor, central gear, planetary gear group, coupler, bearing and inner toothed ring. It also includes feed-through shaft, cam, control switch and relay, etc. It also provides their connection relationship and assembly structure.

Description

technical field [0001] The inventor relates to valve speed regulation technology, specifically a compound planetary actuator. Background technique [0002] At present, electric actuators are mostly used for valve speed regulation, and its structure generally adopts multi-stage speed control boxes, and worm mechanisms (including imported products) are also useful, but most of them are large in size (many times larger than valves) and high in cost (the price is between 1 and 2). 2,000 yuan to 10,000 yuan), which is 5 to 20 times the price of the valve itself, so it is difficult to popularize and apply, and it is regarded as a major difficulty in valve automation control. Contents of the invention [0003] In order to overcome the above disadvantages of large volume and high cost, the purpose of the inventor is to provide a compound planetary actuator with small volume, low cost and reliable operation. [0004] In order to achieve the above object, the inventor's technical s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/04F16K31/53
CPCF16H1/46
Inventor 常殿林吴维于涛林
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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