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Friction planetary stepless speed changer transmission mechanism

A continuously variable transmission, transmission mechanism technology, applied in friction transmission, transmission, gear transmission and other directions, can solve the problems of high production cost and complex structure

Active Publication Date: 2014-04-16
GUIPING PRODIVITY PROMOTION CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a friction planetary continuously variable transmission mechanism, which overcomes the fact that the prior art planetary gear transmission needs multiple clutches and brakes to cooperate with each other to achieve a wide range of transmission ratios, so the structure is complex and the production costly defects

Method used

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  • Friction planetary stepless speed changer transmission mechanism
  • Friction planetary stepless speed changer transmission mechanism
  • Friction planetary stepless speed changer transmission mechanism

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Embodiment Construction

[0089] The present invention will be described in further detail below according to accompanying drawing and embodiment:

[0090] Such as figure 1 and figure 2 As shown, the transmission mechanism of the friction planetary continuously variable transmission of the present invention includes a planet carrier 20, at least one planetary row 300, a center wheel set 100 and a transmission element 400, and the planetary row 300 includes an outer planetary gear 8, a planetary shaft 9, an inner planetary wheel set 200 and the rotating arm 7, the inner planetary gear set 200 includes the inner planetary gear 4, the first planetary bevel gear 3 and the second planetary bevel gear 5, and the center wheel set 100 includes the first bevel gear 2 and the second bevel gear 1; The outer planetary gear 8 meshes with the transmission element 400 and the inner planetary gear 4 respectively; the inner planetary gear set 200 is movably connected with the rotating arm 7, and the rotating arm 7 an...

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Abstract

The present invention discloses a planetary friction type continuously variable transmission (CVT) mechanism, which comprises a planet carrier, at least one planetary line, a sun gear set and a transmission unit, wherein the planetary line includes an outer planetary gear, a planet shaft, an inner planetary gear set and a rotary arm; the inner planetary gear set includes an inner planetary gear, a first planetary bevel gear and a second planetary bevel gear; the sun gear set includes a first bevel gear and a second bevel gear; the transmission unit is engaged with a transmission element in the planetary line; the inner planetary gear set is movably connected with the rotary arm; the rotary arm and the outer planetary gear are movably connected with the planet carrier through the planet shaft; the outer planetary gear is engaged with the inner planetary gear; and power is transmitted between the sun gear set and the inner planetary gear set through the engagement of conical surfaces, so that the continuous variable transmission (CVT) can be achieved. The planetary friction type CVT mechanism provided by the present invention can be applied in the field of the transmission of various vehicles, machines and the like.

Description

technical field [0001] The invention relates to the technical fields of planetary gear transmission and planetary friction transmission, in particular to a transmission mechanism of a friction planetary continuously variable transmission. Background technique [0002] In the last ten years, CVT (Continuously Variable Trans-mission) technology has made great progress, and is currently widely used in the field of low-power vehicles. There are many types of continuously variable transmissions, among which the belt drive type and the traction drive type have been applied in automobiles, and they all transmit power by friction. Due to the low transmission efficiency of fluid type and electric type, only a small amount of them are currently used in special vehicles. [0003] The belt-driven continuously variable transmission mainly relies on variable-diameter driving and driven wheels and metal belts to achieve stepless change in speed ratio. It has high transmission efficiency ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/76
CPCF16H15/52
Inventor 郭克亚
Owner GUIPING PRODIVITY PROMOTION CENT
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