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Method of checking design size of wind power locking disc

A technology for designing dimensions and locking discs, applied in computer-aided design, calculation, electrical digital data processing, etc., can solve problems such as not considering the influence of bending moment

Active Publication Date: 2017-11-28
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current design check method for shrink discs does not consider the bending moment effect

Method used

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  • Method of checking design size of wind power locking disc
  • Method of checking design size of wind power locking disc
  • Method of checking design size of wind power locking disc

Examples

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Embodiment Construction

[0070] An implementation example of the present invention is to use a certain type of wind power locking disc, and the parameters of the locking disc are: the inner diameter of the main shaft d 0 75mm, outer diameter d 1 520mm, shaft sleeve outer diameter d 2 is 640mm, and the average diameter of the long cone surface of the inner ring is d 3l is 660.96mm, and the outer diameter of the outer ring is d 4 It is 1020mm. Design maximum fit clearance R between main shaft and bushing 1max is 0.136mm, the maximum fit clearance R between the sleeve and the inner ring is designed 2max is 0.240mm. The contact length L between the shaft sleeve and the inner ring is 245mm, and the inclination angle β of the conical surface of the inner ring is 2.8°. The modulus of elasticity of the spindle E 1 is 205Gpa, the elastic modulus E of the bushing 2 is 176Gpa, the elastic modulus E of the inner ring and the jacket 3 ,E 4 Both are 210GPa. Bolt tightening torque M 0 is 1660KN·m, the nu...

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Abstract

The invention discloses a method of checking design size of a wind power locking disc, and belongs to the technical field of wind generator design and manufacture. The method is characterized by: calculating pressure of each contact surface and torque, which a main shaft and a shaft sleeve can transmit, after locking of the locking disc through a selected bolt number and given bolt tightening moment, carrying out comparison with designed transmitted maximum torque, and calculating a torque safety coefficient; then calculating composite stress of each component under a condition of the maximum torque and maximum bending moment, carrying out comparison with yield strength of each component material, and calculating a safety coefficient of each component; and finally, calculating tightening moment, which is required by bolts, according to the maximum torque and the maximum bending moment, carrying out comparison with the given tightening moment, and calculating a safety coefficient of the bolts. The method has the advantages that: whether the shaft sleeve and the main shaft can transmit the maximum torque and bear the maximum bending moment after locking of the wind power locking disc and whether plastic damage occurs on each component material can be verified; and the rationality of the design size of the locking disc is effectively verified, manufacture risks are reduced, and a rate of finished products is increased.

Description

technical field [0001] The invention belongs to the technical field of wind power generation equipment design and manufacture, and specifically relates to a method for checking the design size of a wind power locking disc. Background technique [0002] Continued population growth, declining fossil energy stocks, and intensified environmental pollution have led to strong policy support for clean energy. In recent years, the world's wind power development center has shifted from Europe and America to Asia, led by China and India. Among them, China, as the main region for the development of wind power in the world, has achieved explosive rapid growth in recent years with the support of relevant policies. The "Thirteenth Five-Year Plan for Wind Power Development" issued by the National Energy Administration vigorously advocates the development of the wind power industry, and it is estimated that the installed capacity will reach more than 200 million kilowatts in 2020. [0003...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17G06F2119/06
Inventor 王建梅宁可白泽兵杨健
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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