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Design method for interference fit between engine gear and shaft

A technology of interference fit and design method, which is applied in computer-aided design, calculation, special data processing application, etc., can solve the problems of long design cycle and increased design cost, and achieve the effect of saving design cost, efficient design, and realization of design

Pending Publication Date: 2019-09-20
安徽航瑞航空动力装备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Then, through a large number of experimental verifications, the amount of interference is adjusted continuously and the basic size of the structure is modified until the requirements are met. This not only takes a long design cycle, but also greatly increases the design cost.

Method used

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  • Design method for interference fit between engine gear and shaft
  • Design method for interference fit between engine gear and shaft
  • Design method for interference fit between engine gear and shaft

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Embodiment Construction

[0030] The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.

[0031] Such as figure 1 and figure 2 As shown, the present invention provides a kind of design method of engine gear and shaft interference fit, comprises the following steps:

[0032] S1. Define the basic dimensions, material parameters, surface roughness and assembly method of gears and shafts;

[0033] S2. Calculating the minimum interference amount;

[0034] S3, calculate the maximum interference amount;

[0035] S4. Determine the selection range of the interference between the gear and the shaft;

[0036] S5. Analyze and evaluate whether the calculation results meet the expected design ...

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Abstract

The invention discloses a design method for interference fit between an engine gear and a shaft. The design method comprises the steps of S1, clearing the basic size, the material parameters, the junction surface roughness, the working temperature and the assembly mode of the gear and the shaft; S2, calculating the minimum magnitude of interference; S3, calculating the maximum magnitude of interference; S4, determining the selection range of the magnitude of interference between the gear and the shaft; S5, analyzing and evaluating whether the calculation result meets the expected design index or not; and S6, determining the magnitude of interference between the final gear and the shaft, and designing the size and the tolerance of the gear and the shaft. According to the design method for the interference fit of the engine gear and the shaft, the optimization design of the interference fit of the gear and the shaft can be simply and efficiently completed, and the design period is shortened, the design cost is saved, so that the design of the engine parts is better achieved.

Description

technical field [0001] The invention belongs to the technical field of engines, in particular, the invention relates to a design method for interference fit of engine gears and shafts. Background technique [0002] There are a large number of gears and shafts in the engine with an interference fit structure. This structure is mainly used to transmit torque. If the interference is not enough, the gears will loosen during work. However, if the interference is too large, it is easy to appear during the assembly process. Plastic deformation and fracture affect the life of parts and greatly reduce the service life of the engine. A reasonable amount of interference can increase the service life of gears and shafts, and greatly reduce product design and production costs. [0003] In the design work of the interference fit between the gear and the shaft, due to the complex working conditions of the engine, most designers determine the range of the interference between the gear and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F2111/10G06F30/17
Inventor 刘芳陶丽芳刘建华
Owner 安徽航瑞航空动力装备有限公司
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