Point and line engaged worm lifting mechanism

A worm and meshing technology, applied in the field of point-line meshing worm hoisting mechanism, can solve problems such as easy failure of gear teeth, achieve the effect of not easy to break teeth, broaden the scope of application, and enrich the theoretical system

Active Publication Date: 2018-10-09
JIANGSU UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem in the prior art that the teeth of the worm gear or helical gear are prone to failure when the worm gear or helical gear cooperates with the worm, the present invention provides a point-line meshing worm lifting mechanism that can improve the bending strength of the dedendum of the worm gear or helical gear

Method used

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  • Point and line engaged worm lifting mechanism
  • Point and line engaged worm lifting mechanism

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Embodiment Construction

[0020] Such as figure 1 , a point-line meshing worm lifting mechanism, including a first helical gear 1 and a second helical gear 2 meshing with each other, the center of the second helical gear 2 is fixed with a first connecting shaft, and the other end of the first connecting shaft is fixed with a first Bevel gear 3, the first bevel gear 3 is meshed with a second bevel gear 4, the second bevel gear 4 is fixed with a second connecting shaft, the other end of the second connecting shaft is fixed with a worm 5, and the worm 5 is meshed with a transmission wheel 6. The transmission wheel 6 is a worm gear or the third helical gear, the transmission wheel 6 is fixed with a third connecting shaft, the third connecting shaft is fixed with a fourth helical gear 7, and the fourth helical gear 7 is meshed with a fifth helical gear 8 , a drum 9 is fixed on the end face of the fifth helical gear 8, and the rotation axis of the drum 9 coincides with the rotation axis of the fifth helical ...

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Abstract

The invention relates to the technical field of mechanical transmission, in particular to a point and line engaged worm lifting mechanism. A worm, a worm wheel and the tooth shape of a gear have bothinvolutes and arcs, that is, one halves of the tooth heights of wheel teeth are involute convex tooth profiles, and the other halves are concave tooth profiles of transition curves; and during working, different tooth profile curves are engaged to present different engagement effects. When the tooth profiles of the transition curves are engaged with the involute tooth profiles, the point contact is represented; and when the involute tooth profiles are engaged with the involute tooth profiles, the line contact is represented. The point and line engaged worm lifting mechanism has the following characteristics: 1) the pint and line engagement of the gear is popularized to the point and line engagement of the worm and the worm wheel, so that the point and line engagement theoretical system ofthe gear is further enriched, and the worm transmission application range is widened; 2) the worm is in point and line engagement with a bevel gear, so that the machining difficulty is reduced, and the worm transmission connotation and denotation are widened; and 3) the point and line engaged worm wheel has dual advantages of an involute worm wheel and an arc worm wheel; and the strength is higher.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission, in particular to a point-line meshing worm lifting mechanism. Background technique [0002] Worm drive is widely used because of its advantages of large transmission ratio, stable transmission, small vibration and low noise. The performance and quality of worm drive will ultimately affect the quality of machine products. [0003] The failure mode of worm drive often manifests as tooth surface pitting, gluing, tooth surface wear and tooth breakage, etc. Due to material and structural reasons, the strength of the helical tooth part of the worm is always higher than that of the worm gear teeth, so the failure often occurs on the worm gear teeth. Contents of the invention [0004] In order to solve the problem in the prior art that the teeth of the worm gear or helical gear are prone to failure when they cooperate with the worm, the present invention provides a point-line meshing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/20F16H55/22F16H55/17F16H55/08B66D1/14
CPCF16H1/206F16H55/0806F16H55/0826F16H55/17F16H55/22B66D1/14
Inventor 李秀莲刘伟汪献伟王海峰俞成涛朱福先徐旭松施晓芳周金宇王江涛邱睿何庆李冬燕陈航瀚
Owner JIANGSU UNIV OF TECH
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