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Positive-pressure self-adaptive power split type continuously variable transmission of planetary ring bevel gear

A continuously variable transmission, planetary ring cone technology, applied in the direction of vehicle gearbox, belt/chain/gear, fluid pressure actuating device, etc. The effect of transfer efficiency

Inactive Publication Date: 2016-08-10
ZHONGBEI UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: currently used mechanical transmission inorganic transmissions mainly rely on friction to provide power, and the size of friction is determined by positive pressure; at present, mechanical mechanisms are used to provide constant positive pressure, and the actual operation It is difficult to provide proper positive pressure, too much positive pressure will cause unnecessary energy loss and shorten the service life of the continuously variable transmission, while too small positive pressure will increase the slip rate and make the output power insufficient

Method used

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  • Positive-pressure self-adaptive power split type continuously variable transmission of planetary ring bevel gear
  • Positive-pressure self-adaptive power split type continuously variable transmission of planetary ring bevel gear
  • Positive-pressure self-adaptive power split type continuously variable transmission of planetary ring bevel gear

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Embodiment Construction

[0031] Such as figure 1As shown, the present invention is a positive pressure self-adaptive planetary ring bevel gear power-split continuously variable transmission. When working, the input torque can be directly transmitted from the input shaft 7 or through the reduction mechanism to the input shaft 7, and most of the power is directly transmitted to the input shaft 7. Transferred to the planetary carrier 18, a small part is transferred to the active central bevel gear 5, and the active central bevel gear 5 and the input shaft 7 do not rotate relative to each other, the active central bevel gear 5 directly meshes with the planetary ring bevel pinion 29, and then, through the speed regulation The frictional force between the ring 2 and the conical surface 3 of the planet ring is transmitted to the planet ring bevel gear 32, and then meshed with the driven central bevel gear 28 to transmit power to the differential gear train. The annular body 31 on the planetary ring bevel gea...

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Abstract

The invention provides a positive pressure adaptive planetary bevel gear power split type continuously variable transmission, the structure includes a planetary bevel gear train, a differential gear train and a hydraulic system; the planetary bevel gear train structure includes: a planetary bevel gear, Speed ​​regulating ring, planetary ring conical conical surface, driving center bevel gear and driven center bevel gear; differential gear train includes: output center wheel, planet carrier, synchronous planetary gear, planetary gear, synchronous internal meshing gear, synchronous cylindrical gear, Fixed shaft gear, central inner cylindrical gear, cylindrical gear; hydraulic control system includes power output shaft, torque sensor, hydraulic cylinder, displacement sensor (pressure sensor), control system, drive circuit, motor, hydraulic pump, servo amplifier and electro-hydraulic servo valve. The present invention selects complete power split transmission, and finally synthesizes the output at the planetary gear, which effectively improves the problem of being unable to provide constant positive pressure in the prior art.

Description

technical field [0001] The invention belongs to the field of continuously variable transmissions, in particular to a positive pressure self-adapting planetary ring bevel gear type power split continuously variable transmission. Background technique [0002] CVT can be divided into: electric transmission, mechanical transmission, hydraulic transmission according to the transmission mode. Electric transmission includes three types: electromagnetic sliding type, DC motor type and AC motor type; electric transmission has a large slip rate, low efficiency, is not suitable for long-term high-load operation, and the equipment is complex, high cost, and the mechanical characteristics are constant in the deceleration section. Torque characteristics, running is not stable enough and other shortcomings. Mechanical transmission has stable speed, small slip rate, reliable operation, constant power characteristics, high transmission efficiency, simple structure, convenient maintenance, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/02F16H57/023F15B11/16F15B21/08
CPCF16H37/022F15B11/165F15B21/08F16H57/023F16H2702/02
Inventor 毛虎平张艳岗王爽顾存行董小瑞张翼绪彦芳王强刘晓红冯耀南王军马富康李建军
Owner ZHONGBEI UNIV
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