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Backlash-adjustable worm helical gear transmission

An adjustable, helical gear technology, applied in the direction of gear transmission, transmission, belt/chain/gear, etc., can solve the problems of reducing the accuracy and life of the transmission system, increasing the backlash, etc., and achieves low vibration and noise, processing and manufacturing The effect of low cost and easy finishing

Active Publication Date: 2020-12-08
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the increase in backlash caused by the wear of the tooth surface of the transmission pair will also reduce the accuracy and life of the transmission system

Method used

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  • Backlash-adjustable worm helical gear transmission
  • Backlash-adjustable worm helical gear transmission
  • Backlash-adjustable worm helical gear transmission

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0044] like figure 1 As shown, it is an adjustable backlash worm helical gear transmission according to an embodiment of the present invention, including a double-sided special-shaped involute worm 1 and a variable-tooth-thick involute gear 2. In order to better define and describe the backlash, it can be The relative position and structure of the adjustable worm helical gear transmission, this embodiment establishes a space frame, and the initial positions of the double-sided special-shaped involute worm 1 and the variable-tooth-thickness involute gear 2 are respectively the space fixed frame σ m...

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Abstract

The backlash-adjustable worm helical gear transmission comprises a double-side special-shaped involute worm and a variable-tooth-thickness involute gear, the normal modules of the tooth faces on the two sides of the double-side special-shaped worm and the variable-tooth-thickness involute gear are equal, the end face modules of the tooth faces on the two sides of the double-side special-shaped worm and the variable-tooth-thickness involute gear are unequal, and the tooth faces on the two sides of the double-side special-shaped worm are involute helical faces of which the lead angles are unequal and the leads are equal, the helical angles of the tooth surfaces on the two sides of the variable-tooth-thickness involute gear are unequal and are positive values, so that the gradually-changed tooth thickness is generated, the design of the lead angles of the double-side special-shaped worm is met, and the modeling and meshing analysis method for backlash-adjustable worm helical gear transmission is provided. According to the invention, the characteristics of large transmission ratio, good self-locking performance, low error sensitivity and low cost of a worm helical gear are inherited, the real-time adjustment of the backlash between teeth and the compensation of the abrasion loss can be carried out, and the technical scheme is suitable for various precision light-load equipment.

Description

technical field [0001] The invention belongs to the field of mechanical transmission, in particular to a worm helical gear transmission with adjustable backlash. Background technique [0002] Worm helical gear transmission is a kind of mechanical transmission composed of worm and helical gear pair, which is used to transmit the movement and power between spatially interleaved axes, and the shaft angle is usually 90°. It is characterized by large transmission ratio, compact structure, stable transmission, convenient processing and low manufacturing cost. It has gradually become a mainstream transmission form that replaces worm gear transmission under low load conditions. [0003] The backlash of a worm helical gear pair refers to the gap between the non-working tooth surfaces of a pair of worm and helical gear meshing. The existence of backlash is mainly to prevent the transmission pair from being stuck due to errors and thermal deformation, and to reserve space for the lubr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F30/20F16H1/16F16H55/22
CPCG06F30/17G06F30/20F16H1/16F16H55/22Y02T90/00
Inventor 叶欣馨陈永洪陈兵奎罗文军陆彬彬
Owner CHONGQING UNIV
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