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Belt type continuously variable transmission

A technology of continuously variable transmission and main shaft, which is applied to components with teeth, belts/chains/gears, transmissions, etc., and can solve problems such as reduced life of rolling bearings and deformation of outer rings

Active Publication Date: 2011-04-13
AISIN AW CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the stress applied to the outer ring of each bearing may be locally concentrated due to the installation position of the bolt for fixing the stopper plate. When the stress is excessively concentrated, the outer ring is deformed, and the life of the rolling bearing is reduced. question

Method used

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  • Belt type continuously variable transmission
  • Belt type continuously variable transmission
  • Belt type continuously variable transmission

Examples

Experimental program
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Embodiment Construction

[0016] Next, preferred modes for implementing the present invention will be described using examples.

[0017] figure 1 It is a configuration diagram showing a schematic configuration of a power transmission device 10 equipped with a belt type continuously variable transmission 20 according to an embodiment of the present invention. The power transmission device 10 is a device that is mounted on a vehicle and transmits power from an unillustrated engine to the axle shafts 19a, 19b of the left and right wheels. The output shaft of the engine is connected; the forward and reverse switching unit 14 is used to switch the rotation direction of the output shaft of the hydraulic torque converter 12 between the forward direction and the reverse direction; the belt type continuously variable transmission 20 (hereinafter referred to as "CVT") ”), the power on the main shaft 22 side is continuously variable and output to the counter shaft 32 side through the belt 21, and the above-menti...

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PUM

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Abstract

A rear case (11c) for encasing a belt type continuously variable transmission is provided with bolt holes in a region deviated from a shaft center plane a passing through the centers of a primary shaft (22) and a secondary shaft (32) and stopper plates (27, 37) which stop the outer races of bearings for supporting the respective shafts are tightened and fixed by means of bolts (28, 38) inserted into the bolt holes. Consequently, a region near the bolt tightening position where a restriction force acting on the outer races of bearings from the stopper plates (27, 37) increases and a region where the tension of a belt or the centrifugal force acts along the shaft center plane a are prevented from overlapping, so that a minute elastic deformation or movement can be allowed within the range of fixing tolerance of the outer case, even when the bearings receive excessive forces.

Description

technical field [0001] The present invention relates to a belt-type continuously variable transmission, and in detail, relates to a belt-type continuously variable transmission having: a primary shaft for inputting power, and a secondary shaft parallel to the main shaft The arrangement is such that the power input to the main shaft is continuously variable and transmitted via a belt; the main shaft is supported on the housing via a first rolling bearing, and the sub shaft is supported on the housing via a second rolling bearing. Background technique [0002] In the past, as such a belt-type continuously variable transmission, a proposal has been made in which a transmission is accommodated in a case (for example, refer to Patent Document 1), and the transmission has: a main shaft for inputting power from an engine; a counter shaft, The power input to the main shaft is transmitted to the counter shaft via an endless belt continuously variable speed. In this transmission, rol...

Claims

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Application Information

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IPC IPC(8): F16H57/02F16C35/077F16H9/12F16H57/023F16H57/035
CPCF16C35/067F16C2361/63F16H9/18F16H57/035F16H57/021F16H57/031
Inventor 佃和道村田阳一佐用正一羽渊良司
Owner AISIN AW CO LTD