A kind of non-spin stepless transmission and its speed regulating device

Abstract

The invention discloses a non-spinning continuously variable transmission and a speed regulation device thereof, and aims at providing a continuously variable transmission capable of avoiding spinning efficiency loss within a certain range of variable-speed ratio. The non-spinning continuously variable transmission comprises an input shaft, an input shaft axial pressurizing device, an input cone disc, rollers, an output cone disc, an output shaft axial pressurizing device and an output shaft; the input cone disc and the output cone disc are respectively in contact with the rollers in a compression manner, and power is transmitted by means of traction; each of generatrices of the surface of revolution of the input cone disc and the surface of revolution of the output cone disc is a logarithmic curve; the rollers are arranged on a trunnion; by limiting the displacement of trunnion sliders, fixed points of the rollers only can move along the radial direction of the cone disc; center rings are respectively processed at two ends of the trunnion according to the distance position requirement; through the changes of the positions of central sliders, positions of the trunnion and the rollers and a swinging angle are adjusted, and therefore the goal of simple speed regulation is achieved; meanwhile, the input cone disc and the output cone disc respectively need to move along the own axis of rotation during speed regulation.

Description

technical field [0001] The invention relates to a transmission device in the mechanical field, specifically a traction type continuously variable transmission. Background technique [0002] Traction-type full toroidal CVT and traction-type semi-toroidal CVT have been partially loaded and put into the market, as Chinese patent publication numbers CN 101479503B, CN 100460715C, CN 1116536C, CN102725561B and CN 101156006A all disclose this Types of continuously variable transmissions. The main components of this type of transmission are: input shaft, axial loading device, input cone, drive roller, output cone, and output shaft. Performance to transmit motion and power, this design improves the friction conditions between the contact surfaces, increases the carrying capacity, and is suitable for medium and large displacement cars. [0003] These two kinds of continuously variable transmissions: traction full toroidal continuously variable transmission and traction semi toroidal...

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of this continuously variable transmission unit is that in the process of speed regulation, in addition to the rollers needing to swing at a certain angle, the positions of the rollers, input cones and output cones all need to be adjusted, which makes the control complicated.

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