Large horizontal cycloid reducer

Abstract

The invention relates to the technical field of cycloid speed reduction. A large-size horizontal type cycloid speed reducer comprises a machine body, a cycloid wheel component, an input shaft and a W output mechanism, and is characterized in that each cycloid wheel is formed by assembling a cast iron disk and a bearing steel wheel rim; an anti-abrasion ring is matched in a pin hole of the cast iron disk in a sliding manner; the W output mechanism comprises an output shaft, a pin and a uniform loading disk; supporting bearings of the W output mechanism are arranged on two sides; a circular ring uniform loading plate is arranged between two cycloid wheels; an eccentric bearing comprises two single-row tapered roller bearings which are back to back and an inner ring eccentric sleeve; a semi-buried hole needle tooth shell is arranged in an inner hole in the input end of the machine body; two, three, four or five groups of cycloid wheel components are provided, and 8 to 20 pieces of cycloid wheels are correspondingly provided; and the bearing capacity is 2 to 5 times of the rated bearing capacity. The large-size horizontal type cycloid speed reducer has the advantages that (1) the bearing capacity is high, so that large-size and ultra-large-size gear boxes with i of 20 to 1,000 and T2 of 1,000 to 5,000 kNm can be manufactured; (2) the weight is reduced by 55 to 65 percent; and (3) during running, the inertia force and the theoretical moment are completely balanced, and the noise is low.

Description

【Technical field】 [0001] The invention relates to the technical field of cycloidal deceleration, and relates to a large horizontal cycloidal decelerator. 【Background technique】 [0002] The inventor pointed out the following problems in the "New Horizontal Dynamic Balance Needle-free Cycloid Reducer" (201110089053.1) in the Japanese Sumitomo 6000 type and the domestic X-type cycloid structure: (A) the needle gear housing is connected with a long screw The structure on the end surface of the body makes the body bulky: (B) adopts the traditional "needle pin structure with needle sleeve and two fulcrums", so the bearing capacity is low, and the maximum speed ratio is only 87; (C) adopts the traditional cantilever W output shaft structure , so the bearing capacity is low and the axial dimension is long. [0003] The advantages of the cycloidal transmission ratio of involute and less tooth difference transmission are (see "Mechanical Design Manual" Chengdaxian Volume 4.16-125): ...

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Problems solved by technology

[0002] The inventor pointed out the following problems in the "New Horizontal Dynamic Balance Needle-free Cycloid Reducer" (201110089053.1) in the Japanese Sumitomo 6000 type and the domestic X-type cycloid structure: (A) the needle gear housing is connected with a long screw The structure on the end surface of the body makes the body bulky: (B) adopts the traditional "needle pin structure with needle sleeve and two fulcrums", so the bearing capacity is low, and the maximum speed ratio is only 87; (C) adopts the traditional cantilever W output shaft structure , so the bearing capacity is low and the axial dimension is long

But it is impossible to use an integrally hardened cycloidal wheel, because it is impossible to manufacture such a large inner hole grinder

[0010] (2) It is difficult to manufacture large and super-large gearboxes with only 4 cycloidal wheels: when the number is increased from 4 to 8 or 12, the torque will be as high as 1200 or 1800kNm. But this can only be achieved by using a cage-shaped W output mechanism do;

[0011] (3) Vibration of large gearboxes: The most important factor for vibration is that the eccentric bearings of the input shaft in the prior art all use cylindrical roller bearings with eccentric sleeves inside, so the radial clearance is relatively large

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