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Differential-ratio eccentric gear speed change mechanism

A technology of speed change mechanism and eccentric gear, which is applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of heavy weight, difficult processing, high production cost, etc., and achieve easy production and processing, improve transmission efficiency, The effect of low production cost

Inactive Publication Date: 2015-04-08
肖立峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the disadvantages of the planetary gear transmission mechanism are large volume, heavy weight, complex structure, and high production cost; the transmission efficiency of the worm gear transmission mechanism is low, it can only be used in the reduction mechanism, and it is difficult to process; the harmonic gear transmission mechanism needs to use Manufactured from special materials, processing is difficult, and production costs are extremely high; the structure of the eccentric cycloid transmission mechanism is complex, and the single-stage transmission ratio is relatively small

Method used

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  • Differential-ratio eccentric gear speed change mechanism
  • Differential-ratio eccentric gear speed change mechanism
  • Differential-ratio eccentric gear speed change mechanism

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Experimental program
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Effect test

Embodiment 1

[0037] refer to Figure 1 ~ Figure 3 , The differential ratio eccentric gear transmission mechanism of the present invention includes a body 10, a transmission shaft 20, an eccentric bearing 30, a bull gear 40, a pinion gear 50 and bearing assemblies 60A, 60B.

[0038] like figure 1 , figure 2 As shown, the body 10 includes a main housing 11 and an end cover 12, wherein the main housing 11 is a hollow disc-shaped housing with one side open, and a first bearing hole 111 is provided in its center for mounting A first bearing 23 is provided. The end cover 12 is a plate-shaped body corresponding to the shape of the main housing 11, and the center of the end cover 12 is provided with a second bearing hole 122 for installing the second bearing 24. The end cover 12 is connected to the main housing with screws. 11 pairs are connected as one.

[0039] like figure 1 As shown, a transmission shaft 20 is provided inside the machine body 10, and the transmission shaft 20 includes a f...

Embodiment 2

[0044] Its basic structure is the same as embodiment 1, as Figure 4 ~ Figure 6 As shown, the difference is that in this embodiment, the large gear 40 is a moving gear, which is fixed on the first transmission shaft 21 . The connection structure of the pinion gear 50 is the same as that of the first embodiment, and it is meshed with the bull gear 40 . The tooth number difference between the bull gear 40 and the pinion 50 and the gear ratio of the bull gear 40 constitute the transmission ratio of the speed change mechanism. The transmission ratio can be changed by the ratio of the number of teeth, so that a single-stage large-scale speed change can be realized.

[0045] like Figure 4 ~ Figure 6 There are two cylindrical grooves 121 near the edge on the end cover 12 for installing the bearing assembly 60B. The diameter of the grooves 121 is larger than the outer diameter of the fourth bearing 61 of the bearing assembly 60B. An eccentric bearing hole 51 is provided at the cen...

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Abstract

A differential-ratio eccentric gear speed change mechanism comprises a machine body, transmission shafts, an eccentric bearing, a gearwheel, a pinion and bearing components capable of achieving revolution and rotation. The transmission shafts include a first transmission shaft and a second transmission shaft which are coincident in axial center, the first transmission shaft is supported on a main casing, the second transmission shaft is supported on an end cover and the first transmission shaft, the eccentric bearing is arranged on the second transmission shaft, the gearwheel is fixed on the inner wall of the main casing, and the pinion is fixed on the outer portion of the eccentric bearing and meshes with the gearwheel. A ratio of the tooth number difference between the gearwheel and the pinion to the tooth number of the gearwheel forms a transmission ratio of the speed change mechanism. One of the bearing components is movably connected with the pinion and the first transmission shaft. When the second transmission shaft drives the eccentric bearing to rotate, the eccentric bearing drives the pinion to achieve revolution around the second transmission shaft while rotates on its axis, the same bearing component isolates revolution of the pinion, and meanwhile, rotation of the pinion is transferred to the first transmission shaft to drive the same to rotate. The process is reversible.

Description

【Technical field】 [0001] The invention relates to a speed change mechanism, in particular to a differential ratio eccentric gear speed change mechanism capable of realizing single-stage large-scale speed change. 【Background technique】 [0002] Various speed change mechanisms are widely used in the mechanical field, including speed-increasing mechanisms and deceleration mechanisms, which are used to increase and decrease the output speed of mechanical equipment. Traditional large transmission ratio mechanisms mainly include multi-stage planetary gear transmission mechanisms, harmonic gear transmission mechanisms, worm gear transmission mechanisms, eccentric cycloid transmission mechanisms, etc. have their own limitations. Among them, the disadvantages of the planetary gear transmission mechanism are large volume, heavy weight, complex structure, and high production cost; the transmission efficiency of the worm gear transmission mechanism is low, it can only be used in the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/087
CPCF16H1/10F16H57/023
Inventor 肖立峰肖宇圻
Owner 肖立峰