Planetary gear multi-way drive stepless speed variator

A technology of continuously variable transmissions and planetary gears, which is applied in the direction of gear transmissions, transmissions, belts/chains/gears, etc., and can solve problems that cannot be applied to large-displacement, high-power automobiles, discontinuous transmission ratios of hydraulic automatic transmissions, and automobiles. CVT has not been popularized to achieve the effects of low production cost and equipment investment, less auxiliary and servo systems, improved speed-up performance and stable performance

Inactive Publication Date: 2007-11-14
龙宏元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Realizing continuously variable transmission is the goal that the automobile industry has been longing for. The current hydraulic automatic transmission and electronically controlled continuously variable transmission have made great progress to a certain extent, but they also have some shortcomings: 1. Hydraulic automatic transmission transmission The ratio is discontinuous, and it can only realize stepless speed change within the subsection range; the efficiency of hydraulic t

Method used

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  • Planetary gear multi-way drive stepless speed variator
  • Planetary gear multi-way drive stepless speed variator
  • Planetary gear multi-way drive stepless speed variator

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] Embodiment 1: In conjunction with Figure 1, in the input stage planetary gear mechanism, an optional planet carrier [1] is used as the main input gear of the input stage planetary gear mechanism, which is connected to torque power, and the sun gear of the input stage planetary gear mechanism is used. ] And the ring gear [8] are used as the two output gears of the input stage; in the output stage planetary gear mechanism, the optional planet carrier [4] is used as the main output gear of the output stage planetary gear mechanism to drive the rear-stage transmission mechanism and use the output stage The sun gear [5] and the ring gear [7] of the planetary gear mechanism are used as the two input gears of the output stage. The output sun gear of the input stage planetary gear mechanism [10] and the input ring gear of the output stage planetary gear mechanism [7] are used to form the input stage sun gear and output stage ring gear transmission path [2] of torque transmission fo...

Example Embodiment

[0037] Embodiment 2: With reference to Figure 2, the optional ring gear [1] in the input stage planetary gear mechanism is used as the main input gear of the input stage planetary gear mechanism, which is connected to the torque power, and the sun gear of the input stage planetary gear mechanism is used. ] And the planet carrier [3] are used as the two output gears of the input stage; in the output stage planetary gear mechanism, the optional ring gear [5] is used as the main output gear of the output stage planetary gear mechanism to drive the rear-stage transmission mechanism and use the output stage The sun gear [7] and planet carrier [6] of the planetary gear mechanism are used as the two input gears of the output stage. Use the output sun gear of the input stage planetary gear mechanism [10] and the input planet carrier of the output stage planetary gear mechanism [6] to form a high-speed and low-torque transmission path of torque transmission [9]; use the output planet carri...

Example Embodiment

[0038] Embodiment 3: With reference to Figure 3, it is based on embodiment 2 (or embodiment 1), adding a planetary gear mechanism as a driving stage before the input stage of the continuously variable transmission. Use the drive stage ring gear [17] as the input wheel to connect with the input torque, use the drive stage planet carrier [15] as the auxiliary wheel to drive the main input gear of the continuously variable transmission [1], and use the drive stage sun gear [14] ] The driving wheel is connected with the main output gear [5] via the clutch [11]. In a certain range, the speed change of the planet carrier [15] is coordinated and synchronized with the speed of the sun gear [14] after the torque is changed by the continuously variable transmission to complete the torque synthesis; when the resistance torque is small, the output gear [14] When the speed is high, the speed of the planet carrier [15] is reduced to the highest speed by the continuously variable transmission an...

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Abstract

The present invention discloses a stepless speed change device of epicyclic gear to achieve multi-channel drive, which is desinged by rotation and revolution of the epicyclic gear under different condition and control with different extent, and different distributive principle of torsion and rotate speed. It comprises two sets (or more than two)of rotating mechanism with epicyclic gear, one set is to be connection of input stage and input torsion, and the other as output stage driving back gera train .two rotating device of input stage and output stage connected through different gear ratio .which make up two drive path is low speed high torsion and hige speed low torsion, and epicyclic gear and assistant device are installed again in stepless speed change device or drive path to change gear ratio of the drive path. It is the gear teeth fixed stepless speed change device, have efficiency of the gear ratio and high-capacity driving.

Description

[0001] Field of technology: [0002] The invention relates to a continuously variable transmission, in particular to a principle of different distribution of torque and rotational speed by revolution and rotation of planetary gears to realize stepless change of torque and rotational speed transmission. technical background: [0003] Realizing continuously variable transmission is the goal that the automobile industry has been longing for. The current hydraulic automatic transmission and electronically controlled continuously variable transmission have made great progress to a certain extent, but they also have some shortcomings: 1. Hydraulic automatic transmission transmission The ratio is discontinuous, and it can only realize stepless speed change within the subsection range; the hydraulic transmission efficiency is low, and the power performance and fuel economy are not ideal. 2. Due to material reasons, the electronically controlled continuously variable transmission can o...

Claims

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Application Information

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IPC IPC(8): F16H3/44
Inventor 龙宏元
Owner 龙宏元
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