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Torsional damper having straight springs

A technology of main springs and buffers, which is applied in the direction of spring/shock absorber, vibration suppression adjustment, mechanical equipment, etc., and can solve the problems of restricting springs and springs not being evenly actuated

Active Publication Date: 2017-09-26
VALEO KAPEC TORQUE CONVERTERS NANJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the spring is not actuated uniformly and in practice a hysteresis effect is observed over the entire compression stroke, especially for large angular strokes
[0004] Therefore, there are sizing and geometrical constraints that limit the stiffness of the spring

Method used

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  • Torsional damper having straight springs
  • Torsional damper having straight springs
  • Torsional damper having straight springs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] exist Figures 1 to 3 shows a torsional damper 10 that rotates about an axis of rotation 100 and includes a rotating primary member 12 , a secondary member 14 that rotates about the axis of rotation and relative to the primary member 12 , and between the primary member 12 and the secondary member 14 Circumferentially positioned springs 16, 18.

[0053] Here, the primary component 12 comprises two guide washers 20 , 22 remote from each other along the axis of rotation 100 , and the two guide washers 20 , 22 are coupled to each other by an attachment stud 24 formed on one of the washers 20 , The attachment posts 24 are arranged to penetrate into apertures 26 provided in the other gasket 22 for this purpose. In the application under consideration, the snubber 10 is intended to be integrated into a torque converter. To this end, the hub 28 of the turbine wheel of the torque converter is shrunk into one of the washers 22 . As for the other washer 20 it is intended to be f...

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PUM

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Abstract

A torsional damper (10) comprises a disc (38) rotating around an axis of rotation (100), and at least one spring (16) and at least one guide washer (20, 22) rotating around the axis of rotation (100) with respect to the disc (38). The disc (38) is provided with at least one housing window (42) delimited by the walls including an interior wall (42.2) radially rotated towards the exterior of the end walls (42.3, 42.4). The spring (16) is housed in the window (42) and comprises intermediate turns (16.3). The guide washer (20, 22) is provided with at least one direct abutment face (34.1) and at least one retrograde abutment face (34.2). The spring (16) is a straight empty helical spring. In the absence of torque, at least one of the intermediate turns (16.3) of the spring (16) bears radially against the internal wall (42.2) and the spring (16) is arched around the axis of rotation (100). In the direct end of stroke position, the spring (16) is straightened and bears against the retrograde abutment face (34.2) and against one of the end walls (42.3) of the window (42), parallel to the retrograde abutment face (34.2).

Description

technical field [0001] The invention relates to a torsional damper intended to damp fluctuations in speed and / or torque between two coaxial rotating members and which can be integrated, for example, into a double flywheel damper or a damper with a long stroke. Background technique [0002] In document FR2652399 there is described a torsional damper comprising a web rotating about an axis of rotation between two guide washers at a neutral reference angle with respect to the web about the axis of rotation Rotation of both sides of the position in the forward direction until the forward end-of-travel position and in the reverse direction until the reverse end-of-travel position, and the torsion buffer consists of a spring that works by compression between the web and the guide washer . Springs are unloaded straight helical springs working by compression along their major axis. To this end, the ends of the spring bear against the parts hinged to the web and the guide washer. ...

Claims

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Application Information

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IPC IPC(8): F16F15/123F16F15/134
CPCF16F15/1232F16F15/13415F16F15/1343
Inventor R.弗胡格M.迈厄特
Owner VALEO KAPEC TORQUE CONVERTERS NANJING CO LTD