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Hypocycloid RV transmission device

A kind of transmission device and hypocycloid technology, which is applied in the direction of transmission device, gear transmission device, belt/chain/gear, etc., and can solve the problems of mechanism bearing capacity, large crankshaft diameter, and impact on service life, etc.

Inactive Publication Date: 2010-06-02
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing RV transmissions generally have the following disadvantages: ①Two cycloidal wheels are usually used for planetary motion. In order to meet the meshing, the number of teeth can only be an odd number, which limits the selection of the second-stage transmission ratio, and it is often difficult to meet the requirements during design In addition, the two cycloidal wheels can achieve static balance, but cannot achieve dynamic balance, affecting its dynamic performance, and it is easy to generate vibration and noise during high-speed operation; at the same time, using two cycloidal wheels to improve When the carrying capacity is increased, the weight of the reducer also increases significantly
②The pin wheel of the RV transmission device is fixed on the housing, and the pin wheel sleeve structure is adopted, which tends to cause tooth surface glueing when transmitting large power, resulting in a large loss of efficiency
③RV transmission is the output of motion and power by the crankshaft. The bearing of the rotating arm bears a large force, which affects the life. Generally, the RV transmission has a larger transmission ratio than other transmission methods, and the diameter of the crankshaft is correspondingly larger, which affects the load-carrying capacity of the entire mechanism.
④Common RV transmission output mechanism has a fan-shaped hole structure, which is difficult to process

Method used

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  • Hypocycloid RV transmission device
  • Hypocycloid RV transmission device
  • Hypocycloid RV transmission device

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Embodiment Construction

[0020] Accompanying drawing is the structural representation of the present invention, figure 2 It is a schematic diagram of the transmission principle of the present invention, as shown in the figure: the hypocycloid RV transmission device of this embodiment includes a casing 1 and a power input shaft 2 and a power output shaft 3 that are arranged coaxially and rotate with the casing 1 respectively , the housing 1 is provided with a driving gear 4 that is fixedly matched with the power input shaft 2 along the circumferential direction, and a driven gear 6 is provided meshing with the driving gear 4, and the driven gear 6 is fixedly matched with a driven gear shaft 9 along the circumferential direction. ; The housing 1 is provided with an output disk 8 that is fixedly matched with the power output shaft 3 along the circumferential direction, and a needle tooth installation disk 7 is arranged side by side with the output disk 8, and a needle tooth installation disk 7 is arrange...

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Abstract

The invention discloses a hypocycloid RV transmission device comprising a shell, a power input shaft and a power output shaft. The power input shaft and the power output shaft are coaxially arranged and are in running fit with the shell; a support disc, a driven gear, a pin tooth installation disk and an output disk are axially juxtaposed in the shell in sequence; and the shell is provided with a hypocycloid gear. The hypocycloid RV transmission device retains the advantage of the RV transmission and improves and overcomes the disadvantages of the RV transmission. A pinwheel is adopted by the hypocycloid RV transmission device to do planetary motion, and only one pin tooth installation disk provided with a lightening hole is used by the hypocycloid RV transmission device, thus the weight of the hypocycloid RV transmission device is effectively reduced. Two ends of the pinwheel are respectively arranged on the pin tooth installation disk and the output disk, thus the vibration of the hypocycloid RV transmission device is effectively decreased, and the dynamic performance of the hypocycloid RV transmission device is improved. The hypocycloid RV transmission device adopts a crankshaft and the pinwheel to output simultaneously, thus the stressing condition of a rotating arm bearing is improved, and the bearing capacity of the rotating arm bearing is enhanced. Due to the appropriate tooth choose and pinwheel diameter increase, the bearing capacity of the rotating arm bearing can be further enhanced. The invention has simple and compact structure and low manufacturing cost and is convenient to maintain.

Description

technical field [0001] The invention relates to a reduction transmission mechanism, in particular to a hypocycloid RV transmission device. Background technique [0002] The transmission methods used in the reduction transmission mainly include ordinary cylindrical gear transmission, planetary gear transmission, worm gear transmission, cycloidal pinwheel transmission, harmonic transmission and movable tooth transmission, etc. RV transmission is developed on the basis of cycloidal pinwheel transmission A kind of transmission, the RV transmission device has the advantages of large reduction ratio, small size, light weight, and precise transmission. It is mainly used for transmission equipment with low speed and high torque output, especially in the field of robots. [0003] The existing RV transmissions generally have the following disadvantages: ①Two cycloidal wheels are usually used for planetary motion. In order to meet the meshing, the number of teeth can only be an odd num...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/28F16H1/34
CPCF16H1/32F16H2001/323
Inventor 朱才朝刘明勇闫春爱张晓蓉罗召霞
Owner CHONGQING UNIV
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