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Damper device

A technology of vibration damping device and natural frequency, which is applied in the direction of transmission device, fluid transmission device, spring/shock absorber, etc., and can solve the problems of large changes in the rigidity of the double-pass shock absorber, increased weight of the torque converter, and vibration attenuation And other issues

Inactive Publication Date: 2017-12-01
AISIN AW CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

However, if the spring constant of the elastic body is adjusted to rationalize the natural frequency of the vibration paths B and C, the overall rigidity of the two-way damper will vary greatly
In addition, if the weights of the intermediate flange and the turbine combined with the intermediate flange are adjusted to rationalize the two natural frequencies, the weight of the flange, the turbine, and the weight of the entire torque converter will increase.
Therefore, in the two-way damper, it is not easy to appropriately set the natural frequency of the vibration paths B and C in order to improve the vibration damping performance. The frequency of the vibration to be damped is different. The vibration damping device described in Patent Document 1 cannot attenuate this vibration well.

Method used

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Embodiment Construction

[0025] Next, modes for implementing the present invention will be described with reference to the drawings.

[0026] figure 1 It is a schematic diagram showing the structure of the starting device 1 including the vibration damping device 10 of the present invention, figure 2 It is a sectional view showing the starting device 1 . The starting device 1 shown in the drawing is mounted on a vehicle having an engine (in this embodiment, an internal combustion engine) EG as a prime mover. The front cover 3, the pump wheel (input side fluid transmission member) 4 fixed to the front cover 3, the turbine wheel (output side fluid transmission member) 5 that can rotate coaxially with the pump wheel 4, and the vibration damping device 10 are connected and fixed on the Vibration-damping hub 7 as a power output member on the input shaft IS of an automatic transmission (AT), continuously variable transmission (CVT), dual clutch transmission (DCT), hybrid transmission, or transmission (pow...

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Abstract

Provided is a damper device (10) in which a drive member (11) comprises: a first plate member (111) having a spring contacting part (111c) that is in contact with an end portion of a first outer spring (SP11) included in a first torque transmission path; and a second plate member (112) having a spring contacting part (112c) that is in contact with an end portion of a first inner spring (SP21) included in a second torque transmission path and is more radially inside than the spring contacting part (111c). The first plate member (111) is supported in a freely rotatable manner by a first supporting part (71) of a damper hub (7), and the second plate member (112) is supported in a freely rotatable manner by a second supporting part (72) of the damper hub (7) provided and displaced from the first supporting part (71) in the axial direction of the damper device (10).

Description

technical field [0001] The invention relates to a vibration damping device having an input member and an output member. Background technique [0002] Conventionally, a two-way damper used in connection with a torque converter is known as a damper device applicable to a starting device (for example, refer to Patent Document 1). In this damping device, the vibration path from the engine and the lock-up clutch (32) to the output hub (37) is divided into two parallel vibration paths B, C, each of which has a pair of A spring and a separate intermediate flange (36, 38) disposed between the pair of springs. In addition, in order to make the natural vibration frequencies of the two vibration paths different, the turbine wheel (34) of the torque converter is combined with the middle flange (36) of the vibration path B, and the natural frequency of the middle flange (36) of the vibration path B is higher than The natural vibration frequency of the middle flange (38) of the vibratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/134F16H45/02
CPCF16F15/134F16F15/12373F16H2045/0231F16H45/02F16D3/12F16F15/12366F16H2045/0294F16F15/13484F16F15/13407
Inventor 泷川由浩长井大树轮嶋雅树坂本贵生伊藤和广
Owner AISIN AW CO LTD
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