Eccentric cycloid type speed reducing mechanism
A reduction mechanism, cycloid technology, applied in mechanical equipment, gear transmission, belts/chains/gears, etc., can solve the problems of overlapping interference, increased difficulty in manufacturing cycloid wheels and their gear teeth, etc. degree of effect
Inactive Publication Date: 2013-06-05
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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Problems solved by technology
[0003] However, in order to achieve a higher degree of meshing coincidence and obtain a stable output, the above-mentioned cycloidal wheel usually forms closely arranged gear teeth on its outer peripheral surface. When the size is limited, the gear teeth need to be made small, and the distance between the gear teeth in the circumferential direction is also reduced, and even overlapping interference will occur at the root of the tooth, thus increasing the difficulty of manufacturing the cycloidal wheel and its gear teeth
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[0011] The eccentric cycloid type deceleration mechanism of the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0012] figure 1 Shown is an eccentric cycloid type deceleration mechanism 100 according to an embodiment of the present invention, which can be used as a decelerator for a robot, a decelerator for travel or rotation of a construction machine, etc.
[0013] See also figure 2 , The eccentric cycloid type deceleration mechanism 100 includes a housing 20, a bracket assembly 30 disposed in the housing 20, two cycloids 40 and three crankshaft assemblies 50.
[0014] The housing 20 has a substantially cylindrical shape, and internal teeth 21 are formed on the inner circumferential surface. The gear teeth of the inner tooth portion 21 may be a pin gear or a pin gear, which includes a first inner gear 212 and two second inner gears 213 and 214 symmetrically arranged on both sides of the first inner gear 212. ...
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The invention discloses an eccentric cycloid type speed reducing mechanism, which comprises a shell, at least one cycloidal gear and at least one crank shaft, wherein an internal tooth part is formed on the inner peripheral surface of the shell; the cycloidal gear is accommodated in the shell; an external tooth part meshed with the internal tooth part is formed on the outer peripheral surface of the cycloidal gear; the tooth number of the external tooth part is slightly smaller than that of the internal tooth part; each crank shaft is provided with at least one eccentric part; and each cycloidal gear is rotatablely arranged on one eccentric part and performs eccentric rotation along with the rotation of the crank shaft. The external tooth part comprises a plurality of external tooth discswhich are arranged side by side in the axial direction; the external tooth discs arranged adjacently are mutually offset in the circumferential direction; and the internal tooth part comprises a plurality of internal tooth rings which are correspondingly meshed with the external tooth discs. The eccentric cycloid type speed reducing mechanism has the advantage of high meshing overlap ratio and isconvenient to manufacture.
Description
Technical field [0001] The invention relates to a deceleration mechanism, in particular to an eccentric cycloid type deceleration mechanism. Background technique [0002] An eccentric cycloid type speed reduction mechanism generally includes an internal gear formed in an outer casing, a crankshaft with an eccentric portion arranged in the outer casing, and a cycloid with external teeth sleeved on the eccentric portion. The cycloid is linked with the eccentric part of the crankshaft and revolves while meshing with the internal gear to decelerate the input rotation to obtain the output rotation. The above-mentioned eccentric cycloid deceleration mechanism has a large number of transmission meshing teeth and a significant error average effect. It has the advantages of large transmission ratio, compact structure, large carrying capacity and high transmission efficiency. It is widely used in industrial fields such as precision machinery, robots, metallurgy, and mining. Applications. ...
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IPC IPC(8): F16H1/20
Inventor 张国庆徐晓明
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD