KR20170060270A - damper for a vehicle's driving shaft - Google Patents

Abstract

The present invention relates to a damper for a drive shaft of a vehicle, which is installed in a hollow region inside a drive shaft made of a hollow pipe body to perform a damping function.
The present invention is characterized in that a set of supports 20a and 20b connected by a plurality of reinforcing bars 21a and 21b, cover members 30a and 30b surrounding the support, supports 31a and 31b of the cover members 30a and 30b, And a mass body 40 fixed to the liver.
Since the damper is inserted in the hollow portion of the drive shaft, damper damages due to interference with the surroundings can be prevented, and deformation or damage of the rubber material due to external influences can be prevented. And the like.

Description

[0001] The present invention relates to a damper for a vehicle drive shaft,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper for a drive shaft of a vehicle, and more particularly, to provide a damper for a drive shaft of a vehicle, which is installed in a hollow region inside a drive shaft made of a hollow pipe member to perform a damping function.

In the drive shaft for transmitting the driving force generated by the explosive force of the engine to the wheels, twisting and bending vibration due to the explosive force of the engine are generated. When the drive shaft rotates at a high speed, the drive shaft vibrates at a specific rotational speed , The vibration generated in the drive shaft deteriorates the drive stability of the drive shaft, adversely affects the drive system, and causes vibration noise in the drive shaft, thereby decreasing the quietness.

In addition, if the frequency of the vibration generated in the drive shaft coincides with the natural frequency possessed by the drive shaft itself, the vibration is further amplified to significantly increase the vibration noise, and the increased vibration may cause resonance to damage the drive shaft, May cause serious damage to the product.

A damper for generating a vibration of a specific frequency capable of attenuating the vibration due to the driving of the drive shaft is coupled to a certain position of the drive shaft so that the vibration generated in the drive shaft is attenuated by the damper, Thereby ensuring stability and safety of the drive system and minimizing generation of vibration noise.

The conventional damper is constituted by forming a fastening portion having a through hole at both ends or at one end of a support member into which a mass is inserted. When the shaft is inserted into the through hole and the fastening portion is engaged with the fastening portion, As shown in Fig.

Since the conventional damper is installed outside the drive shaft and is exposed to the outside, damage due to interference with the surroundings may occur. In addition, due to external influences (weather, pollution, etc.) The damping function may be deteriorated and the damping property of the damper may be deteriorated. In addition, the damper installed on the drive shaft can be displaced by external influences during an external impact or for a long period of use, It is pointed out that the first-order vibration damping capability can not be exhibited when the displacement is performed.

Meanwhile, in recent years, efforts have been made to improve the energy consumption efficiency and reduce the emission of harmful gas by reducing the weight of the vehicle. In order to reduce the weight of the vehicle, hollow hollow pipes are used as drive shafts Are increasing.

The present invention has been made in order to solve the problems of the conventional external mounting type damper as described above, and it is an object of the present invention to provide a damping function which is firmly installed on the inner surface of a hollow portion of a drive shaft made of a hollow pipe And the dampers are prevented from being exposed to the outside, thereby eliminating the interference with the peripheral part, and preventing the external influence on the damper, thereby preventing damage to the damper and improving the durability. It is desirable to provide a damper for a drive shaft of a vehicle.

According to an aspect of the present invention, there is provided a support structure comprising: a pair of supports connected to each other by a plurality of reinforcing bars, A cover member made of a rubber material that surrounds the supporter and having a support base corresponding to each other inside; And a mass body provided so as to be fixed between the supports of the cover body.

The damper for a drive shaft of a vehicle according to the present invention can be simply installed in a hollow region inside a drive shaft manufactured by a hollow pipe to perform a damping function. The damper is pressed and fixed firmly on the inner peripheral surface of the hollow portion of the drive shaft The damping function can be exerted in the correct position without damper flow, and since the damper is not required to be mounted on a separate mounting member or drive shaft for damper mounting, It is very simple and easy to carry out, and does not affect the strength, durability, or inherent functions of the drive shaft at all.

In addition, since the damper is inserted into the hollow portion of the drive shaft, damper damages due to interference with the surroundings can be prevented, and deformation or damage of the rubber material due to external influences can be prevented. The present invention is an advantageous effect that the expected effect is indeed beneficial.

1 is a perspective view showing a damper for a drive shaft according to a preferred embodiment of the present invention.
2 is a front sectional view for explaining a configuration of a damper for a drive shaft according to the present invention.
3 is a plan sectional view for explaining a configuration of a damper for a drive shaft according to the present invention.
Figure 4 is a cross-sectional view of an embodiment of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that, in the drawings, the same components or parts have the same reference numerals as much as possible. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

1 shows a preferred embodiment of a damper 10 for a drive shaft according to the present invention. As shown in FIG. 1, the present invention includes a pair of supports 20a and 20b, The cover bodies 30a and 30b configured to cover the supports 20a and 20b and the mass body 40 configured to be installed between the cover bodies 30a and 30b. The implementation is as follows.

2 to 3 are sectional views for explaining the construction of a damper for a drive shaft 10 according to the present invention. As shown in FIG. 2, supports 20a and 20b in the form of a disk are supported by a plurality of reinforcing bars 21a and 21b, So that the supports 20a and 20b are arranged to correspond to each other while maintaining a certain distance by the reinforcing bars 21a and 21b.

The cover members 30a and 30b surrounding the ends of the supports 20a and 20b and the reinforcing bars 21a and 21b are made of rubber and the inner side of the cover members 30a and 30b (31a, 31b) made of rubber.

The cover members 30a and 30b are configured to have an outer diameter that can be snugly fitted to the inner surface H1 of the hollow portion H of the drive shaft S, The support members 31a and 31b are arranged in the center of the cover members 30a and 30b so as to be perpendicular to the support members 30a and 30b.

The mass 40 is made of a metal or a rubber material having a large mass, and the mass 40 is a mass 31b of the cover members 30a, 30b so as to be horizontally fixed and fixed firmly.

The damper 10 for a drive shaft is inserted into the hollow portion H of the drive shaft S and the drive shaft damper 10 is inserted into the hollow portion H of the drive shaft S, The outer diameter of the cover members 30a and 30b is pressed against the inner surface H1 of the hollow portion H and the installation of the drive shaft damper 10 is completed.

The reinforcing bars 21a and 21b connected between the supports 20a and 20b firmly fix the supports 20a and 20b so that the cover bodies 30a and 30b or the supports 31a 31b and the mass body 40 from being deformed or twisted, thereby preventing the mass body 40 from changing its natural frequency.

The mass body 40 is installed between the support rods 31a and 31b of the cover members 30a and 30b firmly pressed on the inner surface H1 of the hollow portion H of the drive shaft S to rotate the drive shaft S, And the masses 40 driven together with the drive shaft S attenuates the vibrations generated by the rotation of the drive shaft S. The mass of the mass body 40 and the dimensions of the supports 31a and 31b for fixing and supporting the mass body 40 , It is possible to apply elasticity to drive shafts of various sizes.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It will be obvious to those who have knowledge of.

10: Damper for drive shaft 20a, 20b: Support
21a, 21b: reinforcing bars 30a, 30b:
31a, 31b: Support base 40:

Claims (1)

A pair of disk-shaped supports 20a and 20b connected to each other by a plurality of reinforcing bars 21a and 21b and configured to correspond to each other while maintaining a predetermined distance;
The support shaft 20 has an outer diameter capable of interference with the inner surface H1 of the hollow portion H of the drive shaft S, 30a, 30b formed by forming the first and second cover members 31a, 31b;
And a mass (40) configured to be fixed between supports (31a, 31b) of the cover (30a, 30b).

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