Unlock instant, AI-driven research and patent intelligence for your innovation.

Vibration damping mechanism for rotating shaft

一种振动衰减、旋转轴的技术，应用在旋转振动抑制、振动抑制调整、机械设备等方向，能够解决径向的尺寸变大、不适安装驱动轴等问题

Inactive Publication Date: 2012-05-23
TOYOTA JIDOSHA KK
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the vibration damping mechanism of the vibration damping disk system has a large radial dimension, so it is easy to be restricted in the layout, and it is not suitable for mounting on the intermediate shaft of the drive shaft.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vibration damping mechanism for rotating shaft
  • Vibration damping mechanism for rotating shaft
  • Vibration damping mechanism for rotating shaft

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0045] exist Figure 1 ~ Figure 3 , Figure 4A and Figure 4B shows the vibration damping mechanism of the rotating shaft according to the first embodiment of the present invention. In this embodiment, among the left and right FF drive shafts of the vehicle, the intermediate shaft formed as a relatively long one-side drive shaft is used as a rotation shaft, and the vibration damping mechanism of the present invention is attached to the rotation shaft.

[0046] like figure 1 As shown, the drive shaft 10 has: an intermediate shaft 11; figure 1 The middle is the right end side, refer to Figure 4A ) tripod type (TJ type) constant velocity universal joint 12; and the other end side of the intermediate shaft 11 ( figure 1 Middle left end side, refer to Figure 4B ) BJ (bir field) type constant velocity joint 13. The TJ-type constant velocity joint 12 is connected to a differential mechanism (not shown) of the FF transmission as a drive-side rotating shaft, and the BJ-type co...

no. 2 Embodiment approach

[0075] Figure 5A and Figure 5B A vibration damping mechanism for a rotating shaft according to a second embodiment of the present invention is shown. This embodiment differs from the first embodiment in that the damping member is configured to be divisible into two roughly semi-cylindrical bodies, although the intermediate shaft of the drive shaft is used as the rotating shaft similarly to the above-mentioned first embodiment.

[0076] That is, if Figure 5A and Figure 5B As shown, in the present embodiment, an approximately tubular or approximately cylindrical attenuation member 40 made of the same material as the intermediate shaft 11 , such as steel, is attached to the intermediate shaft portion 11 c of the intermediate shaft 11 .

[0077] The attenuation member 40 has a fixing portion 41 fixed to the intermediate shaft 11 in a state of, for example, an interference fit, and a frictional contact portion 42 that is in frictional contact with the intermediate shaft 11 i...

no. 3 Embodiment approach

[0085] Figure 6A and Figure 6B A vibration damping mechanism for a rotating shaft according to a third embodiment of the present invention is shown. In this embodiment, the intermediate shaft of the drive shaft is used as the rotating shaft similarly to the above-mentioned first embodiment, and the damping member having a split structure is used like the above-mentioned first embodiment, but the damping member is formed of an extruded member. This is different from the first and second embodiments.

[0086] That is, if Figure 6A and Figure 6B As shown, in the present embodiment, a substantially tubular or cylindrical damping member 60 obtained by extruding a steel plate, for example, is attached to the intermediate shaft portion 11c of the intermediate shaft 11 .

[0087] The attenuation member 60 has a fixed portion 61 fixed to one end of the intermediate shaft 11 in a state of, for example, an interference fit, and a frictional contact portion 62 on the other end sid...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A vibration damping mechanism for a rotating shaft, capable of being laid out with reduced restriction and capable of exhibiting damping performance by a frictional contact section without variation in a stable manner for a long period. A vibration damping mechanism for a rotating shaft is provided with the shaft (11) for outputting, from an output-side end section (11b), torque inputted into an input-side end section (11a), and also with a damping member (20) having a fixed section (21) fixed to the shaft (11) and also having a frictional contact section (22) making frictional contact with the rotating shaft (11). The vibration damping mechanism is provided also with a fastening band (25) for pressing the frictional contact section (22) to the shaft (11) so that the frictional contact section (22) is in contact with the rotating shaft (11) at a predetermined contact pressure.

Description

technical field [0001] The present invention relates to a vibration damping mechanism for a rotary shaft, and particularly to a vibration damping mechanism for a rotary shaft that damps vibration by a frictional contact portion. Background technique [0002] Conventionally, a dynamic damper having a bending vibration damping function has been often mounted on the intermediate shaft of a vehicle drive shaft as a countermeasure against gear noise and booming noise. However, the intermediate shaft of the drive shaft is generally just a steel rod and has no damping function. Therefore, the so-called rattling noise caused by the torsional vibration of the drive system is caused by the acceleration and deceleration of the middle and high gears. The torsional resonance of the drive system causes problems such as rattle-like rattling and jerkiness caused by the collision of idler gear sets in the transmission. [0003] On the other hand, as an attenuation mechanism for torsional vi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/139
CPCF16F15/1492F16F15/10
Inventor 萩野保幸
Owner TOYOTA JIDOSHA KK