Traction drive continuously variable transmission

A technology of continuously variable transmission and traction transmission, applied in transmission devices, fluid transmission devices, belts/chains/gears, etc., can solve the problem of few mechanical continuously variable transmissions, achieve wide transmission range, flexible and convenient control, and simple structure compact effect

Inactive Publication Date: 2012-08-15
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Steel belt continuously variable transmissions have been widely used in low-power vehicles, but there are few mechanical continuously variable transmissions that can transmit power efficiently in high-power vehicles

Method used

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  • Traction drive continuously variable transmission
  • Traction drive continuously variable transmission
  • Traction drive continuously variable transmission

Examples

Experimental program
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Embodiment Construction

[0014] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings and examples. The following examples are only used to illustrate the technical solutions of the present invention more clearly, but not to limit the protection scope of the present invention.

[0015] Such as figure 1 , figure 2 As shown, the technical solution of the present invention is: a traction drive continuously variable transmission, including input bevel gear 1, driven helical gear 2, outer friction wheel 5, outer conical roller 6, transmission pin 7, inner friction wheel 8 , inner tapered roller 9, bearing bracket 11, bearing 12, planetary row and hydraulic system 16;

[0016] Wherein, the planet row is made up of ring gear 15, planet carrier 14 and planet row sun gear 13;

[0017] The bottom surface of the inner tapered roller 9 is provided with grooves along its axial direction, and the bottom surface of the outer tapered roll...

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Abstract

The invention belongs to the technical field of a transmission system of mechanical equipment, relates to a mechanical transmission and particularly relates to a traction drive continuously variable transmission. The traction drive continuously variable transmission comprises an input bevel gear, a driven helical gear, an outer frictional wheel, an outer conic idler wheel, a driving pin, an inner frictional wheel, an inner conic idler wheel, a bearing support, a bearing and a hydraulic system; when a hydraulic chamber is compressed, the inner conic idler wheel and the outer conic idler wheel move outwards along a middle shaft line, so that the inner frictional wheel is contacted with the conic surface of the inner conic idler wheel to drive a planetary frame to rotate, the outer frictional wheel is contacted with the conic surface of the outer conic idler wheel to drive a gear ring to rotate, and the energy of a planetary line solar wheel is output through rotation of the gear ring and the planetary frame. With the adoption of the traction drive continuously variable transmission, the functions of power transmission, stepless speed change and frictional pair normal loading force control are integrated into a whole; and the traction drive continuously variable transmission has the advantages of being simple and compact in structure, wider in transmission range, high in transmission efficiency, high in transmission power and flexible and convenient in controlling and the like.

Description

technical field [0001] The invention belongs to the technical field of mechanical equipment transmission systems, and relates to a mechanical transmission, in particular to a traction transmission continuously variable transmission. Background technique [0002] Compared with traditional stepped transmissions, continuously variable transmissions have attracted more and more attention from researchers and consumers because of their good economy and comfort. The main advantages of CVT application in automobiles are convenient operation, comfortable driving, and fuel consumption saving. At present, the main forms of mechanical CVT are steel belt CVT, chain CVT and friction traction CVT. Steel belt continuously variable transmissions have been widely used in low-power vehicles, but there are few mechanical continuously variable transmissions that can transmit power efficiently in high-power vehicles. Contents of the invention [0003] The purpose of the present invention is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H47/04
Inventor 苑士华沈楚敬胡纪滨吴维
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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