Mechanical transmission static gear shifting simulation method based on AMESim

Abstract

The invention relates to a gear shifting simulation method of a transmission, in particular to a mechanical transmission static gear shifting simulation method based on AMESim, and aims to solve the problems that in the design process of an existing mechanical transmission, gear shifting force of all positions in the whole gear shifting process cannot be accurately predicted, a whole gear shifting force curve cannot be accurately calculated, and the gear shifting force cannot be accurately predicted. The design period of gear shifting related parts of the transmission is long, and the cost is increased. The method comprises the steps that a mechanical transmission static gear shifting process dynamic simulation model based on AMESim is established; initial design parameters of three grooves of the mechanical transmission and objective evaluation indexes of a gear shifting force curve are obtained; inputting the initial design parameters into a dynamic simulation model for simulation; iterative simulation is continuously carried out according to the objective evaluation indexes of the gear shifting force curve, and an optimized matching scheme of the groove size and the spring parameters is obtained.

Description

technical field [0001] The invention relates to a gear shifting simulation method of a transmission, in particular to an AMESim-based static gear shifting simulation method of a mechanical transmission. Background technique [0002] A self-locking device is arranged inside the mechanical transmission, and its function is to prevent automatic gear jumping and disengagement. The self-locking device is composed of a self-locking steel ball and a self-locking spring. Generally, there are three grooves designed on the surface of the shift fork shaft or shift head. When the shift fork shaft or shift head moves to neutral or a certain working position, there must be a groove. The groove is just aligned with the self-locking steel ball, and the steel ball is embedded in the groove under the action of the spring pressure, so that the shift fork shaft or the shift head cannot come out by itself and remain in a certain shift position. During the shifting process, the design of the gro...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that in the design process of the existing mechanical transmission, the shift force of all positions in the entire shift process cannot be accurately predicted, and the entire shift force curve cannot be accurately calculated, so that the design cycle of the gear shift related parts of the transmission is shorter. In order to solve the technical problems of length and cost increase, an AMESim-based static shifting simulation method for mechanical transmissions is proposed, an accurate simulation model is established, and the existing product part structure and spring parameters are optimally designed by combining experiments and simulations. Improve

Images