Centrifugal force controlled planet gear stepless transmission

A technology of continuously variable transmissions and planetary gears, applied to gear transmissions, belts/chains/gears, components with teeth, etc., which can solve the problems of high maintenance and repair costs, small metal belt carrying capacity, discontinuous transmission ratio, etc. low maintenance cost, high rotation efficiency and simple overall structure

Inactive Publication Date: 2012-08-01
安徽英杰精工机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the automatic transmission technology that is used more in automobiles is the automatic transmission technology that combines the hydraulic torque converter and the planetary gear system, but it has obvious disadvantages: complex structure, discontinuous transmission ratio, complex control system, and power loss. Large, low efficiency, high maintenance and repair costs
Another continuously variable transmission (CVT), which uses a metal transmission belt and changes the matching diameter of the driving and driven wheels to achieve speed change and power transmission, but the weakness of CVT is that the metal belt has a small carrying capacity, limited transmission power, high cost and short life , its control system is quite complex, resulting in an increase in auxiliary costs, currently only for low-emission vehicles

Method used

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  • Centrifugal force controlled planet gear stepless transmission
  • Centrifugal force controlled planet gear stepless transmission
  • Centrifugal force controlled planet gear stepless transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 2 , Figure 4 to Figure 6 , among the figure, the centrifugal force control planetary gear continuously variable transmission of the present invention comprises casing 1, the transmission unit and overrunning clutch 9 that are installed on the casing 1, and transmission unit comprises input shaft 2, output shaft 3, large planetary gear 5, asteroid Gear 12, sun gear 4, ring gear barrel 8 and planetary gear carrier 7, the transmission unit has at least one stage, a common intermediate shaft 11 is installed in the casing 1, the input shaft 2 and output shaft 3 of each transmission unit They are all set on the outer surface of the intermediate shaft 11, the input shaft 2 and the output shaft 3 are separated from each other, the central gear 4 is fixed on the outer surface of the input shaft 2, and two pairs of large planetary gears 5 are on the two mutually perpendicular sides of the central gear 4. The diameters are arranged along the same circle, and the two ...

Embodiment 2

[0030] see figure 1, in the figure, the meaning of the same numbered part of this embodiment is the same as that of Embodiment 1 and will not be repeated. The difference is that the transmission unit is single-stage, and the input shaft 2 and the sun gear 4 are connected by splines.

Embodiment 3

[0032] see image 3 , in the figure, the meanings of the same numbers in this embodiment and Embodiment 1 are the same and will not be repeated. The difference is that the transmission unit is three-stage, and the output shaft 3 of the first-stage transmission unit is also the second-stage transmission The input shaft 2 of the unit is splined to the sun gear 4 of the second-stage transmission unit, and the output shaft 3 of the second-stage transmission unit, which is also the input shaft 2 of the third-stage transmission unit, is connected to the third-stage transmission unit. Spline connection between the sun gear 4 of the first stage transmission unit, spline connection between the input shaft 2 of the first stage transmission unit and the sun gear 4 of the first stage transmission unit.

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Abstract

The invention relates to a mechanical transmission, in particular to a planet gear stepless transmission which is used in a transmission system and utilizes centrifugal force to control speed variation and adjust torque. The stepless transmission comprises a housing, at least one stage of transmission unit and overrunning clutches, wherein each transmission unit comprises an input shaft, an output shaft, a large planet gear, a small planet gear, a central gear, a gear ring cylinder, a planet wheel carrier, an eccentric wheel and an eccentric wheel rack; a common intermediate shaft is mounted in the housing; the input shafts and the output shafts of all the stages of the transmission units are sleeved on the intermediate shaft, and are separated from each other; the central gear is fixed on the outer surface of the input shaft; the large planet gear is meshed with the central gear, and is also meshed with corresponding teeth of the gear ring cylinder; the small planet gear is meshed with the central gear; and the overrunning clutches are mounted between each two stages of the transmission units as well as between the gear ring cylinder of the final stage transmission unit and the housing. The planet gear stepless transmission has the advantages that the structure is simple; the manufacturing cost is low; the transmission ratio and the continuous carrying capacity are large; the transmission efficiency is high; the torque can be adjusted automatically according to the variation of loads during the work process; and stepless speed change is realized during operation.

Description

technical field [0001] The invention relates to a mechanical transmission type transmission, in particular to a planetary gear stepless transmission used in a transmission system to control speed change and adjust torque by utilizing centrifugal force. Background technique [0002] At present, the automatic transmission technology that is used more in automobiles is the automatic transmission technology that combines the hydraulic torque converter and the planetary gear system, but it has obvious disadvantages: complex structure, discontinuous transmission ratio, complex control system, and power loss. Large, low efficiency, high maintenance and repair costs. Another continuously variable transmission (CVT), which uses a metal transmission belt and changes the matching diameter of the driving and driven wheels to achieve speed change and power transmission, but the weakness of CVT is that the metal belt has a small carrying capacity, limited transmission power, high cost and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/76F16H55/17
Inventor 王俊生
Owner 安徽英杰精工机械股份有限公司
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