Curve conjugation based symmetrical cambered surface conjugate curve gears and engagement pair thereof

A conjugate curve, meshing pair technology, applied in belt/chain/gear, components with teeth, hoisting device, etc., can solve the problem of difficult to meet the requirements of arc gear transmission, low bending strength of tooth root, axial force, etc.

Active Publication Date: 2013-01-02
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the distance and position between the meshing points of circular arc gears have a certain impact on the transmission stability and carrying capacity. There are shortcomings such as sensitivity to the center distance, axial forc

Method used

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  • Curve conjugation based symmetrical cambered surface conjugate curve gears and engagement pair thereof
  • Curve conjugation based symmetrical cambered surface conjugate curve gears and engagement pair thereof
  • Curve conjugation based symmetrical cambered surface conjugate curve gears and engagement pair thereof

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Embodiment Construction

[0047] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0048] Such as figure 1 As shown, it is a schematic diagram of the tooth profile surface of the symmetric arc surface conjugate curve gear based on the curve conjugate of the present invention; figure 2 It is a schematic diagram of the physical structure of the gear in this embodiment.

[0049] This embodiment is based on a curve-conjugated symmetric arc-surface conjugate curve gear. The tooth profile curve 1 of the gear is a circular arc, and the curve equation of the contact curve 2 formed by meshing points on the tooth profile curve 1 is:

[0050] x = X ( θ ) y = ...

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Abstract

The invention discloses curve conjugation based symmetrical cambered surface conjugate curve gears and an engagement pair thereof. The engagement pair comprises a gear I and a gear II, wherein the gear I and the gear II are engaged with each other in a point contact mode, and a contact curve gamma 1 which is composed of engagement points on a tooth profile cambered surface of the gear I and a contact curve gamma 2 which is composed of engagement points on a tooth profile cambered surface of the gear II are conjugate curves. According to the engagement pair of the curve conjugation based symmetrical cambered surface conjugate curve gears, the contact curve gamma 1 of the gear I and the contact curve gamma 2 of the gear II which form the engagement pair are conjugate curves, and engagement points between the gear I and the gear II move along contact curves; the engagement pair has the advantages of point contact engagement, tooth profiles of point contact have the high contact strength, the contact transmission process is close to pure rolling along the axial direction, and the transmission efficiency is high; and the selection and the determination of the small tooth number and the large modulus can be achieved on the conditions of the same transmission ratio and the same center-to-center distance, the transmission requirements of high speed, heavy load, high power and high efficiency can be met, and the engagement pair has broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of gear transmission, and in particular relates to a symmetric arc surface conjugate curve gear and its meshing pair based on curve conjugation. Background technique [0002] Gears are typical key basic parts in the equipment manufacturing industry and are widely used in production practice. In mechanical transmission, the conjugate mesh pair often determines the performance of gear transmission. The current gear meshing pairs mainly have two meshing gear transmission forms: line contact and point contact: generally speaking, in the case of line contact, the sliding rate between the tooth surfaces of the meshing pair is large, the tooth surface is severely worn, and it is easy to generate heat and power consumption. Reduce transmission efficiency; and the main feature of point contact gears is that their sliding ratio can be greatly reduced due to their approximate pure rolling meshing. Involute gears and a...

Claims

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Application Information

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IPC IPC(8): F16H55/08F16H55/17
Inventor 陈兵奎梁栋陈毅华成丽梁宏利康传章
Owner CHONGQING UNIV
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