Belt type continuously variable transmission, power unit having belt type continuously variable transmission, vehicle carrying belt type continuously variable transmission, and sheave for continuously

Belt type continuously variable transmission, power unit having belt type continuously variable transmission, vehicle carrying belt type continuously variable transmission, and sheave for continuously

  • CN 1,934,374 A
  • Filed: 03/04/2005
  • Published: 03/21/2007
  • Est. Priority Date: 03/18/2004
  • Status: Active Application
First Claim
Patent Images

1. variable v-belt drive, described variable v-belt drive comprises:

  • The primary pulley (29) of output torque,From the secondary pulley (30) of described primary pulley (29) reception torque, andThe band (31), described band (31) is wound between described primary pulley (29) and the described secondary pulley (30) in the ring-type mode, with from described primary pulley (29) to described secondary pulley (30) transmitting torque, andWherein said primary pulley (29) comprising;

    The first belt wheel body (34a),The second belt wheel body (34b), the described second belt wheel body (34b) be arranged to can along towards with direction slide relative away from the described first belt wheel body (34a), and between described second belt wheel body (34b) and the described first belt wheel body (34a), be formed with trough of belt (37), described band (31) is wound on the described trough of belt (37)A plurality of push bodies (45), described push body (45) together rotates with the described second belt wheel body (34b), and centrifugal force the moving radially that produces when rotating along described second belt wheel body (34b) corresponding to the described second belt wheel body (34b), this moving causes the described second belt wheel body (34b) to slide, changing the width of described trough of belt (37), andA plurality of retainers (66), when the described second belt wheel body (34b) arrives the minimum gear ratio position of width minimum of wherein said trough of belt (37), described retainer (66) limits moving of described push body (45) by contacting with the outer surface (47a) of described push body (45), and described retainer (66) is configured as the concentrated wear of the outer surface (47a) that quickens described push body (45).

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