A Method of Calculating the Interference of Double Tapered Shrink Disc

Abstract

The invention discloses a method for calculating interference magnitude of a double-cone locking disc and belongs to the field of double-cone locking disc design. The method comprises the steps of (1) calculating pressure and the interference magnitude of matching surfaces of a shaft sleeve and a shaft by transmission torque; (2) considering the assembling clearance between the matching surfaces of the shaft sleeve and the shaft, and calculating pressure of matching surfaces of the shaft sleeve and an inner ring; (3) considering the assembling clearance between the matching surfaces of the inner ring and the shaft sleeve, and calculating pressure of matching surfaces of an outer ring and the inner ring; (4) calculating the deformation of the inner diameter of the outer ring according to the pressure of the matching surfaces of the outer ring and the inner ring; (5) calculating the deformation of the outer diameter of the inner ring according to the pressure of the matching surfaces of the outer ring and the inner ring and the pressure of the matching surfaces of the inner ring and the shaft sleeve; (6) calculating the interference magnitude of the matching surfaces of the outer ring and the inner ring according to the deformation of the inner diameter of the outer ring and the deformation of the outer diameter of the inner ring. The method has the advantages of respectively and independently considering the stress conditions and the deformation conditions of the outer ring and the inner ring, and the influences of the assembling clearances on the interference magnitude, and enabling the calculating result to be accurate and reliable.

Description

technical field [0001] The invention belongs to the design field of a double-cone locking disc, and in particular relates to a method for calculating the interference amount of a double-cone locking disc. Background technique [0002] The interference connection can transmit torque and axial force, and has the advantages of good neutrality, high bearing capacity, long life, and ability to withstand impact loads, and is widely used in industrial machinery. The double-tapered locking disc uses the interference connection to realize the function of torque transmission, and the amount of interference is the key factor affecting the performance of the interference connection. A large interference will lead to excessive stress of the parts and reduce the service life; a small interference will affect its ability to transmit torque. When calculating the interference of the double cone locking disc, the traditional checking method is to regard the outer ring as the containing part,...

AI Technical Summary

Problems solved by technology

A large interference will lead to excessive stress of the parts and reduce the service life; a small interference will affect its ability to transmit torque

When calculating the interference of the double-tapered shrink disc, the traditional checking method is to regard the outer ring as the containing part, and the inner ring, bushing and shaft as the contained parts, but the actual situation is that the inner ring, bushing and shaft The stiffness of the combined body is greater than the assumed contained part, which leads to the result obtained by the traditional calculation method is inconsistent with the actual situation, and there is a large error between the calculation result and the actual situation

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