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Torsional vibration reducing device

A torsional vibration, rotating body technology, applied in the direction of rotational vibration suppression, vibration suppression adjustment, spring/shock absorber, etc., can solve problems such as inconvenience, deterioration of damping performance, increase in axial length, etc.

Inactive Publication Date: 2016-06-22
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the damping performance may deteriorate
Also, since the connecting member is arranged along the side surface of the mass body, the axial length of the torsional vibration reducing device may increase corresponding to the thickness of the connecting member
Inconvenience may similarly be caused in the invention described in JP2013-148211A

Method used

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Examples

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Embodiment Construction

[0024] image 3 is a sectional view showing a part of one example of the torsional vibration reducing device according to the first embodiment. The torsional vibration reducing device includes a rotating body 1 attached to a shock absorbing object. The rotating body 1 is a disc-shaped member. The circumferentially long guide hole 2 is formed at a position radially offset from the rotation center of the rotary body 1 . The guide hole 2 is formed to penetrate the rotating body 1 in the plate thickness direction. The guide holes 2 are positioned with predetermined intervals in the circumferential direction of the rotating body 1 . As an example, eight guide holes are provided. The guide hole 2 has a shape formed by bending an oval or an ellipse.

[0025] A rolling body 3 reciprocating by inertial force when torque transmitted to the rotary body 1 fluctuates is inserted into each of the guide holes 2 . The rolling body 3 is pressed against the inner surface of the guide hole...

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PUM

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Abstract

A torsional vibration reducing device is provided. The torsional vibration reducing device includes a rotating body, a plurality of rolling bodies, and a connection member. The connection member connects the plurality of rolling bodies, and at least two contact portions are positioned on an inner surface of each of the plurality of accommodating portions, a portion of an outer peripheral surface of each of the plurality of rolling bodies being positioned in each of the plurality of accommodating portions, and the outer peripheral surface of each of the plurality of rolling bodies being configured to come into point contact with the contact portions in the circumferential direction of the rotating body.

Description

technical field [0001] The invention relates to a device for reducing torsional vibration through reciprocating motion of rolling elements. Background technique [0002] An example of this type of device is described in Japanese Patent Application Laid-Open No. 2014-47805. The arrangement includes a plate member attached to the crankshaft of the engine. An accommodating portion formed as a ring-shaped recess is formed in the plate member. A plurality of mass bodies that reciprocate by fluctuations of the transmitted torque are arranged in the housing. The mass bodies are connected by connecting members arranged along opposite side surfaces of the mass bodies. [0003] Also, Japanese Patent Application Laid-Open No. 2013-148211 describes a torsional vibration reducing device including an inertial mass body composed of a first pendulum member and a second pendulum member. Connecting members are disposed on opposite side surfaces of each of the pendulum members. The connec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/14
CPCF16F15/145
Inventor 宫原悠天野浩之铃木裕二塚野聪弘松本守弘本多敦
Owner TOYOTA JIDOSHA KK
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