Damping device of a mechanical tensioning system for a traction mechanism drive

A technology of shock absorption device and traction mechanism, which is applied in transmission devices, mechanical equipment, belts/chains/gears, etc., can solve problems such as high cost and increased wear, and achieve the effects of long service life, simple wear and reliable operation.

Inactive Publication Date: 2010-03-31
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this has the disadvantage of a costly construction of the spring-loaded structure or of the slider with the mentioned arcs
In extreme cases, this can lead to increased wear with a concomitant adverse effect on torque (i.e. on belt tension) and on the friction available to the tensioning system

Method used

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  • Damping device of a mechanical tensioning system for a traction mechanism drive
  • Damping device of a mechanical tensioning system for a traction mechanism drive
  • Damping device of a mechanical tensioning system for a traction mechanism drive

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Embodiment Construction

[0028] therefore, figure 1 An automatic tensioning system 1 of a traction drive drive is shown, for example for driving auxiliary assemblies on an internal combustion engine of a motor vehicle. The operating principle of such a belt tensioner is known to the skilled person. The basic structure of the tensioning system 1 basically corresponds to the applicant's patent application mentioned at the outset. Therefore, only the components essential to the invention are described in detail below.

[0029] The tensioning system 1 has a tensioning arm 2 , at one end of which a tensioning wheel (not shown) is rotatably mounted for elastic support on a traction means (for example a belt). By means of the other end, the tension arm 2 can be rotatably supported on the housing part 3 ( figure 1 , figure 2 ). For this purpose, the tensioning arm 2 has a disk hub 16 with a disk hub journal 17 protruding in the direction of the housing part 3 , which passes through the housing part 3 vi...

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PUM

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Abstract

The invention relates to a damping device of a mechanical tensioning system (1, 1') for a traction mechanism drive, for example of a motor vehicle, for damping pivoting movements of a tensioning arm (2) which is supported at one end via a tensioning roller on a traction mechanism and which is rotatably mounted at the other end on a positionally fixed housing part (3), having an annular friction element (8, 8'), the periphery of which is formed as a friction lining (9, 9') which, to generate a friction torque, interacts with a friction surface (15) of the housing part (3) which surrounds the friction element (8, 8'), wherein a torsional spring (11, 11') which connects the housing part (3) and the tensioning arm (2) in terms of rotational force, which is embodied as a coil spring and by means of which the tensioning arm (2) can be acted on with a torsional moment so as to generate a continuous preload of the traction mechanism is supported on the friction element (8, 8') and exerts a radially outwardly acting force on the friction lining (9, 9'). In order that the damping device has a high level of operational reliability and load capacity and a long service life and is neverthelessof structurally simple and cost-effective design, surface contact means (14, 24) which act on the friction lining (9, 9') are provided for the transmission of the radial force between the torsional spring (11, 11') and the friction lining (9, 9').

Description

technical field [0001] The invention relates to a damping device for a mechanical tensioning system of a traction mechanism drive, such as a motor vehicle, for damping the pivoting movement of a tensioning arm, one end of which is passed through The tensioning wheel is supported on the traction mechanism and the other end is rotatably supported on the fixed housing part. The damping device has an annular friction part whose circumference is configured as a friction lining. In order to generate the friction torque, the friction The lining cooperates with the friction surface of the housing part surrounding the friction part, wherein a torsion spring, designed as a helical spring, which torsionally connects the housing part and the tensioning arm, is supported in the friction part and exerts an outwardly acting radial force on the friction part. On the liner, the tensioning arm can be subjected to a torsion moment via the torsion spring, in order to generate a continuous pretens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/12
CPCF16H7/1218F16H2007/081F16H7/1281
Inventor 约翰·辛格尔
Owner SCHAEFFLER TECH AG & CO KG
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