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RV speed reducer based on CTC (Centralized Traffic Control) circular arc and single circular arc few tooth difference planetary transmission

A technology of planetary and reducer with less tooth difference, applied in the direction of gear transmission, transmission, transmission parts, etc., can solve the problem that cannot meet the requirements of severe working conditions of aerospace servo mechanism, the coefficient of gear tooth coincidence is small, and the difficulty of miniaturization is increased. Large and other problems, to avoid the possibility of interference, the contact area of ​​the gear teeth is large, and the structure is compact.

Inactive Publication Date: 2015-04-29
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the deceleration part of the cycloidal pinwheel needs special machine tools for grinding, its processing performance is poor; second, the deceleration part of the cycloidal pinwheel with the same power occupies a large space, making it more difficult to miniaturize; 3. The first-stage spur gear deceleration part adopts involute tooth shape, the gear tooth coincidence coefficient is small, the bearing capacity is low, and the phenomenon of uneven load is obvious
Existing RV reducers cannot meet the harsh working conditions of aerospace servo mechanisms

Method used

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  • RV speed reducer based on CTC (Centralized Traffic Control) circular arc and single circular arc few tooth difference planetary transmission
  • RV speed reducer based on CTC (Centralized Traffic Control) circular arc and single circular arc few tooth difference planetary transmission
  • RV speed reducer based on CTC (Centralized Traffic Control) circular arc and single circular arc few tooth difference planetary transmission

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0020] Such as figure 1 , figure 2 and image 3 As shown, the present invention provides an RV reducer based on CTC arc and single arc planetary transmission with small tooth difference, including a fixed seat 1, an input flange 2, an eccentric shaft 3, a bearing baffle 4, and a planetary gear 5. Gear shaft 6, first input pin 7, external gear 8, output flange 9, second input pin 10, spring washer 11, bearing retaining ring 12, needle bearing 13, eccentric shaft support bearing 14, flange support bearing 15, hexagon socket head cap screw 16.

[0021] Such as figure 2 As shown, the eccentric shafts 3 are two shafts distributed up and down. Two external gears 8 are sheathed on the two eccentric shafts 3 . The phase angles of the two external gears 8 differ by 180°. Each external gear 8 is sleeved on the boss of the eccentric shaft 3 . A n...

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Abstract

The invention belongs to a speed reducer, and particularly discloses an RV speed reducer based on CTC (Centralized Traffic Control) circular arc and single circular arc few tooth difference planetary transmission. The speed reducer comprises a fixing seat, input end flanges, eccentric shafts, planetary wheels, a gear shaft, outer gears and output end flanges, wherein the middle parts of the eccentric shafts are sleeved with the outer gears; the outer gears are arranged on the fixing seat in a sleeving way; one end of each eccentric shaft is sleeved with one planetary wheel; the input end flanges are arranged between the eccentric shafts and the planetary wheels; the planetary wheels are meshed with the gear shaft arranged in the input end flanges through gears; the output end flanges are arranged between the other ends of the eccentric shafts and the fixing seat. The speed reducer has the advantages of compact structure, simple machining process, high transmission accuracy, high carrying capability, large torsion rigidity and stable transmission, and can meet the severe working condition requirements of aerospace servo mechanisms.

Description

technical field [0001] The invention belongs to a reducer, in particular to an RV reducer based on CTC arc and single arc planetary transmission with few tooth differences. Background technique [0002] The existing RV reducer is a closed planetary transmission mechanism with a cycloidal wheel, which has the advantages of large transmission ratio range, large load capacity, high transmission efficiency and high torsional rigidity. It is mainly a two-stage planetary transmission mechanism composed of the first-stage involute planetary deceleration part and the second-stage cycloidal pinwheel deceleration part. Because the deceleration part of the cycloidal pinwheel needs special machine tools for grinding, its processing performance is poor; second, the deceleration part of the cycloidal pinwheel with the same power occupies a large space, making it more difficult to miniaturize; 3. The first-stage spur gear deceleration part adopts involute tooth shape, the gear tooth coinc...

Claims

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Application Information

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IPC IPC(8): F16H1/32
CPCF16H1/32F16H57/023F16H2057/02073F16H2057/02086F16H2057/02091
Inventor 侍威崔佩娟亢金涛赵国平林晨
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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