Anti-backlash transmission comprising trochoid gears and roll pins with conical teeth

A pin-rolling gear and gear transmission technology, which is applied in the field of backlash-eliminating conical-tooth pin-trochoidal gear transmission, can solve the problem of not further considering the backlash and other problems, achieve low maintenance cost, eliminate backlash, improve The effect of utilization

Inactive Publication Date: 2013-04-24
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the premise that the preload is applied to fix the gear center distance, no further consideration is given to how to eliminate the backlash caused by tooth profile meshing wear in the transmission process in a timely manner

Method used

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  • Anti-backlash transmission comprising trochoid gears and roll pins with conical teeth
  • Anti-backlash transmission comprising trochoid gears and roll pins with conical teeth
  • Anti-backlash transmission comprising trochoid gears and roll pins with conical teeth

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Embodiment Construction

[0021] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0022] Figure 4 with Figure 5 Two transmission forms of external gearing and internal gearing according to the embodiments of the present invention are shown. During the installation process, in order to achieve zero backlash in meshing, a slight preload should be ensured between the external gear B (or internal gear C) and the rolling pin gear A, and the magnitude of the preload should be recorded as the predetermined preload. Tight force. When backlash occurs due to wear during transmission, push pin gear A toward the small end of the tapered pin until the pressure between external gear B (or internal gear C) and pin gear A reaches the predetermined preload. The backlash between the external gear B (or internal gear C) and the rolling pin gear A can be eliminated, thereby compensating the transmission error and ensuring the transmission accuracy.

[00...

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PUM

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Abstract

The invention relates to an anti-backlash transmission comprising trochoid gears and roll pins with conical teeth. The transmission has two transmission modes, and a pin gear is respectively externally meshed and internally meshed with the corresponding trochoid gears to implement the two transmission modes. The pin gear is provided with a plurality of conical roll pins, and tooth gaps are eliminated by axially pushing the pin gear along the end, which is provided with a small diameter, in a transmission procedure; and the trochoid gears are conical trochoid gears, and the trochoid gears and the pins are meshed to realize zero-backlash power transmission. The pin gear or the trochoid gears is driven by a servo motor to continuously relate, and accordingly a deceleration function or an acceleration function is realized. The anti-backlash transmission is simple in structure, requirements on high-speed and high-precision transmission are met, the tooth gaps generated by abrasion during transmission can be eliminated, the meshing accuracy is guaranteed, and the utilization rate of the roll pins is increased.

Description

technical field [0001] The invention relates to a backlash-eliminating conical gear rolling pin-trochoidal gear transmission device, which can be used in high-speed, high-precision transmission systems and drive devices, and belongs to the technical field of mechanical transmission. Background technique [0002] The invention patent "power transmission device" with the application number 201080025707.8 discloses a transmission device composed of rolling pin gears and spur gears. The gear teeth of the rolling pin gear in the device are cylindrical rolling pins, and the gear teeth of the spur gear adopt a standard cycloid tooth profile. The outstanding technical features and advantages of this transmission device are reflected in: the tooth root of the spur gear has a polygonal tooth root space, and the transition connection section is rounded to solve the problem of undercutting; by applying a preload perpendicular to the axis, it can eliminate The tooth profile engages the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/06F16H1/10F16H55/17F16H57/12
Inventor 李剑锋张化波罗平马春敏范金红
Owner BEIJING UNIV OF TECH
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