Stepless speed change device of circularly arranged cone pulleys

A technology of continuously variable speed changer and bevel wheel, which is applied in the direction of transmission device, friction transmission device, belt/chain/gear, etc., can solve the problems of non-transmission, complex structure, high processing precision requirements, etc., and achieve reliable performance, simple structure, low cost effect
CN101550995AInactive Publication Date: 2009-10-07罗斯德尔汽车工程技术(北京)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
罗斯德尔汽车工程技术(北京)有限公司
Publication Date
2009-10-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a stepless speed change device of circularly arranged cone pulleys, comprising a driven shaft and a driving shaft arranged around the driven shaft. The driven shaft is provided with a columnar friction pulley capable of axially moving, which is connected with a position control device; each driving shaft is provided with a conical friction pulley of which the inner conical face contacts with the columnar face of the columnar friction pulley in parallel to form a friction driving face. The stepless speed change device drives through the friction driving face between the conical friction pulley and the columnar friction pulley and can drive relatively high torque in a use rotation speed range. When position of the columnar friction pulley is in stepless change, drive ratio between the conical friction pulley and the columnar friction pulley will be also in corresponding stepless change so as to realize stepless speed change. The stepless speed change device has advantages of simple and compact structure, reliable property, low cost and so on.
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Description

technical field

[0001] The invention relates to a continuously variable transmission device. Background technique

[0002] The known CVT transmission is usually divided into two types: traction transmission and friction transmission. The traction transmission transmits power through the molecular force of the liquid medium between the contact surfaces; the friction transmission transmits power through the friction force of the contact surfaces. The typical application of the traction drive continuously variable transmission is the traction ring type continuously variable transmission. Its advantage is that multiple sets of traction rings can be arranged in series, the transmitted torque is large, and the efficiency is high. High, low transfer speed. The typical application of the friction CVT is the metal V-belt CVT. By axially adjusting the width of the V-belt groove, the radius of the actual contact surface between the driving wheel and the driven wheel V-belt is controll...

Claims

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