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Self-coupling continuously variable transmission

A continuously variable transmission and transmission technology, applied in the direction of fluid transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of CVT starting and low-speed driving, limited transmission power, and high manufacturing cost. The effect of good fuel saving, small size and low cost

Inactive Publication Date: 2009-07-22
付广振
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a self-coupling continuously variable transmission with coaxial gear transmission as the main, hydraulic transmission as the auxiliary, without the need for a variable speed control system, to solve the problem that the existing continuously variable transmissions are all friction transmissions, and the transmission power is limited , the transmission torque is below 330N·m, and they are all equipped with a complicated speed change control system, which has a complicated structure and high manufacturing cost, and the above-mentioned continuously variable transmission has stagnation and unsmoothness when starting and driving at low speed; When starting, occasionally there will be a problem that it cannot start at low speed

Method used

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  • Self-coupling continuously variable transmission

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specific Embodiment approach 1

[0007] Specific implementation mode one: combine figure 1 Describe this embodiment, the self-coupling continuously variable transmission of this embodiment consists of a torque converter 1, an intermediate shaft 2, a differential planetary row 3, a long hollow shaft 4, a brake 5, a second one-way clutch 6, and a third one-way clutch 7. Composed of a variable speed planetary row 8 and a two-way clutch 9; the torque converter 1 is composed of a pump wheel 1a, a turbine 1b, a guide wheel 1c, a first one-way clutch 1d and a short hollow shaft 1e, and the differential planetary row 3 It is composed of differential sun gear 3a, differential planetary gear 3b, differential planetary carrier 3c and differential ring gear 3d. The differential planetary row 3 is set in the torque converter 1, and the torque converter 1 is set on the intermediate shaft 2, the variable speed planetary row 8 is composed of the front sun gear 8a, the rear sun gear 8b, the front planet carrier 8c, the rear p...

specific Embodiment approach 2

[0008] Specific implementation mode two: combination figure 1 Describe this embodiment, between the intermediate shaft 2 and the long hollow shaft 4 of this embodiment, between the long hollow shaft 4 and the short hollow shaft 1e, between the front planetary carrier 8c and the intermediate shaft 2, between the rear planetary carrier 8d and the Both the intermediate shafts 2 and the torque converter 1 and the intermediate shaft 2 are rotationally fitted. Such setting can ensure the smooth and reliable rotation of the transmission. Others are the same as in the first embodiment.

[0009] The working principle is: the self-coupled continuously variable transmission of the present invention is based on coaxial gear transmission, supplemented by hydraulic transmission, and the power is divided into two ways and transmitted to the rear planetary carrier 8d for synthesis and output. The gear transmission route is differential The inner ring gear 3d is at the same speed as the engi...

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Abstract

A self-coupling stepless speed changer relates to a stepless speed changer, aiming at solving the problems of limited transmission power, low transmission torque, complex structure, high cost and complex speed change control system of the existing stepless speed changers. In the invention, a differential planet gear set is arranged on a middle shaft, a pump wheel is fixedly connected with a differential inner gear ring, a turbo is fixedly connected with a differential planet carrier, the turbo is also fixedly connected with a long hollow shaft on the middle shaft, the pump wheel is fixedly connected with the differential inner gear ring of the differential planet gear set, the long hollow shaft is fixedly connected with a third one-way clutch which is fixedly connected with a speed changing planet gear set, a short hollow shaft is sheathed on the long hollow shaft, a first one-way clutch is fixedly connected with the short hollow shaft and a guide wheel, a second one-way clutch is fixedly arranged on the long hollow shaft in a brake, and a two-way clutch is fixedly connected with the long hollow shaft and the inner gear ring of the speed changing planet gear set. The self-coupling stepless speed changer does not need a speed change control system, has the characteristics of simple structure, low cost and unlimited transmission torque, and can be applied to the connection of driving devices and engines of automobiles and the like.

Description

technical field [0001] The invention relates to a continuously variable transmission, which belongs to the technical field of continuously variable transmission. Background technique [0002] The existing continuously variable transmission for automobiles has two forms, one is to adopt V-shaped metal belt with variable diameter metal pulley CVT; the other is to adopt roller rotary disc type CVT. Both of the above two CVTs belong to friction transmission, the transmission power is limited, and the transmission torque is below 330N·m. Both of them are equipped with complicated speed change control systems. The structure is complicated, the manufacturing cost is high, and the ability to transmit torque still needs to be further improved. And the above-mentioned continuously variable transmission has the phenomenon of stagnation and roughness when starting and running at low speed; when starting again after an emergency stop, the phenomenon of being unable to start at low speed ...

Claims

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Application Information

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IPC IPC(8): F16H47/08
Inventor 付广振付洋洋王洪波
Owner 付广振
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