Friction wheel-type continuously variable transmission

A continuously variable transmission, friction wheel technology, applied in the direction of friction transmission, transmission, transmission control, etc., can solve problems such as the slippage of the continuously variable transmission, and achieve the effect of improving compactness and high reliability

Inactive Publication Date: 2011-11-16
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the output torque is 0 or extremely small when going downhill or when being towed, no axial force is generated during the first rolling, etc., and the traction oil has the viscosity characteristics of a liquid, and there is slippage of the continuously variable transmission. possibility of

Method used

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  • Friction wheel-type continuously variable transmission
  • Friction wheel-type continuously variable transmission
  • Friction wheel-type continuously variable transmission

Examples

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Embodiment Construction

[0057] Such as figure 1 As shown, the continuously variable transmission U mounted on a vehicle such as an automobile is composed of a starting device 31 such as a torque converter with a lock-up clutch or a multi-disc wet clutch, a forward / reverse switching device 32, and a conical cone according to the present invention. The friction ring type continuously variable transmission device 1 and the differential device 33 are configured by assembling the above-mentioned devices into the case 5 .

[0058] The power generated by the engine 30 is transmitted to the primary shaft (input shaft) 4 of the conical friction ring type continuously variable transmission device 1 via the starting device 31 and the forward and reverse switching device 32 arranged on the downstream side of the power transmission path of the starting device 31, The conical friction ring type continuously variable transmission device 1 performs a continuously variable speed change and outputs to a secondary sha...

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Abstract

Disclosed is a friction wheel-type continuously variable transmission having a pressing device which can obtain the required axial force even with an extremely low torque with the first roll or the like when there is no load, such as when being towed. The pressing device (12) has: a first stage, which is based on the precompression of a spring (13); a second stage, which is based on a first torque cam (15), whereby torque is transmitted entirely through said first torque cam; and a third stage, which is based on a second torque cam (20), whereby torque is transmitted entirely through said second torque cam. The first stage has a constant axial force, the second stage is comprised of a relatively large slope (alpha), and the third stage is comprised of a small slope (beta).

Description

technical field [0001] The present invention relates to a friction wheel type continuously variable transmission. Between the input side friction wheel and the output side friction wheel, the friction member is brought into contact with the input side friction wheel and the output side friction wheel through oil, and the input side friction wheel is changed by changing the contact position. The rotation between the shaft and the output shaft is continuously variable, and preferably involves a conical friction ring type continuously variable transmission device. Conical friction wheels (cones) are respectively arranged on two shafts arranged in parallel, and can move in the axial direction through The ring arranged in a manner transmits rotation between these two shafts. Specifically, it relates to a friction wheel type continuously variable transmission equipped with a pressing device that applies an axial force to a friction wheel such as a cone, Thereby traction is obtained ...

Claims

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Application Information

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IPC IPC(8): F16H15/22
CPCF16H61/6649F16H15/42
Inventor神谷美纱纪高桥昭次山下贡
OwnerAISIN AW CO LTD