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Gear inverse meshing model

A gear and meshing technology, which is applied in the field of gear reverse meshing model, can solve the problems of not pointing out the reverse sequence phenomenon, not deriving the transmission error in the whole process of meshing, etc.

Active Publication Date: 2017-05-10
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it does not point out the reverse order phenomenon that occurs during the off-line meshing process, nor does it deduce the transmission error in the whole process of meshing

Method used

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Embodiment Construction

[0063] The present invention will be further described below in conjunction with specific examples:

[0064] Using the number of teeth Z 1 =55 standard spur gear is used as the driving wheel, the number of teeth is Z 2 =25, base pitch error Δf pb = 0.03mm spur gear as a driven wheel. The modulus of the driving wheel and the driven wheel is m=2, and the pressure angle of the graduated circle is α=20°. The process of biting-in and biting-out is respectively analyzed in reverse order.

[0065] (1) Reverse sequence analysis of the biting process

[0066] When there is a positive base pitch deviation, gear 1 and gear 2 cannot directly enter the involute meshing section, and a figure 1 (a) segment meshing process, the A 2 The point starts to enter the involute meshing section. In the involute meshing section, the contact point gradually moves from the tooth root to the tooth top on the tooth surface of the driving gear 1, which is the normal meshing sequence. Segments belo...

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Abstract

The invention provides a gear inverse meshing model and belongs to the technical field of mechanical transmission. Due to influences of gear errors, an obvious difference exists between transmission of an actual gear pair and transmission of an ideal gear pair which is steady in transition. Through research on transmission of the gear pair with errors, the concept of gear inverse meshing is proposed and parsed and analyzed. Targeted to transmission of the gear pair with radix-node errors, a transmission error model in the inverse meshing process is deduced, and the blank of research on meshing features of the whole meshing process of the gear pair with errors including off-line meshing segments is filled up.

Description

technical field [0001] The invention relates to a gear reverse meshing model, which belongs to the technical field of mechanical transmission. Background technique [0002] Theoretical gear transmission is an ideal transmission with constant transmission ratio, smooth transition of gear teeth, contact points covering all working tooth surfaces, and constant backlash. However, due to the existence of gear errors, ideal gears do not exist in practice. At present, the kinematic analysis of gear transmission is mostly based on the ideal meshing of error-free gears. In actual gear transmission, due to the influence of manufacturing errors, installation errors, and elastic deformation after loading, it is inevitable that the gears will change. The ideal meshing motion process affects the transmission characteristics of the gear pair. [0003] Aiming at the problem of gear pair transmission characteristics, R.G.Munro et al. studied the out-of-line meshing transmission error based...

Claims

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Application Information

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IPC IPC(8): F16H1/06F16H55/08G06F17/11
CPCF16H1/06F16H55/0806G06F17/11
Inventor 石照耀李珂于渤林家春
Owner BEIJING UNIV OF TECH