Vibration reducer for automobile noise reduction

A shock absorber and noise reduction technology, applied in the direction of shock absorbers, springs/shock absorbers, shock absorbers, etc., can solve the problems affecting the quiet effect of cars, reduce comfort, and loud noise, and achieve noise reduction, prevent The effect of unstable movement and improved noise reduction

Inactive Publication Date: 2018-09-21
WEST ANHUI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in the prior art, the shock absorber is not arranged in the cylinder body, so the piston rod in the shock absorber is in constant motion when the car is running, which produces relatively large noise, which affects the quiet effect of the car and makes the car more comfortable. greatly reduced sex

Method used

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  • Vibration reducer for automobile noise reduction
  • Vibration reducer for automobile noise reduction
  • Vibration reducer for automobile noise reduction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] see Figure 1~4 , a shock absorber for automobile noise reduction, comprising a cylinder body 1 and a stabilizing plate 2, the cylinder body 1 is a cylindrical structure with an open top, a stabilizing plate 2 is provided in the middle of the inner cavity of the cylinder body 1, and the stabilizing plate 2 is The middle part of the board 2 is provided with a number of lifting holes 3 in a circular array. The lifting holes 3 are provided with a lifting sleeve 4, and the lifting sleeve 4 is provided with a lifting rod 5. There is a slide between the lifting sleeve 4 and the lifting rod 5. connected, the outer circular surface of the lifting rod 5 is in a circular array and is provided with a number of oil grooves 51 matched with the lifting sleeve 4, and the bottom ends of all the lifting rods 5 are fixedly connected to the lower pressing plate 6, and the bottom end of the lower pressing plate 6 Fixedly connected to the second telescopic rod 7, the other end of the first ...

Embodiment 2

[0027] This embodiment is a further elaboration on the basis of Embodiment 1. The stable plate 2 includes a base plate 21, an upper sound-insulating layer 23, an upper protective layer 24, a lower sound-insulating layer 25, and a lower protective layer 26. There is a sound-absorbing cover 22 matched with the lifting hole 3. The sound-absorbing cover 22 is set on the outside of the lifting hole 3. The sound-absorbing cover 22 is made of suction sponge. The top of the base plate 21 is provided with an upper sound-insulating layer 23. The bottom of the substrate 21 is provided with a lower sound-insulating layer 25, the upper sound-insulating layer 23 and the lower sound-insulating layer 25 are all made of sound-insulating panels, the top of the upper sound-insulating layer 23 is provided with an upper protective layer 24, and the lower The bottom of the sound-insulating layer 25 is provided with a lower protective layer 26. By setting the sound-absorbing sleeve 22, the upper soun...

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Abstract

The invention discloses a vibration reducer for automobile noise reduction. The vibration reducer comprises a cylinder body and a stabilizing plate, wherein the stabilizing plate is arranged in the middle part of an inner cavity of the cylinder body; the middle part of the stabilizing plate is provided with a plurality of ascending and descending holes in a round array form; an ascending and descending sleeve is arranged in each ascending and descending hole; an ascending and descending rod is arranged in the ascending and descending sleeve; the bottom ends of all of the ascending and descending rods are fixedly connected with a lower press plate; the bottom end of the lower press plate is fixedly connected with a second telescopic rod; the other end of the first telescopic rod is fixedlyconnected to the bottom wall of the inner cavity of the cylinder body; a first spring is sleeved on the outer circle surface of the first telescopic rod; the top ends of all of the ascending and descending rods are jointly and fixedly connected with an upper press plate; a second telescopic rod is arranged in the middle part of the bottom end surface of the upper press plate; a second spring is sleeved on the outer circle surface of the second telescopic rod. Through the first spring and the second spring, the collision between the telescopic rod and the cylinder body is avoided, so that the generation of noise is avoided from sources; the stabilizing plate is matched with the slide sleeve, the vertical upward and downward movement done by the ascending and descending rod can be effectively ensured; the noise generated by instable movement of the ascending and descending rod can be effectively prevented.

Description

technical field [0001] The invention relates to the technical field of automobile shock absorption, in particular to a shock absorber for automobile noise reduction. Background technique [0002] Automobile shock absorbers, in order to quickly attenuate the vibration of the frame and the body and improve the ride comfort and comfort of the automobile, the automobile suspension system is generally equipped with shock absorbers, and the two-way acting cylinder type shock absorber is widely used in automobiles. vibrator. The shock absorber is a vulnerable part during the use of the car. The performance of the shock absorber will directly affect the driving stability of the car and the life of other parts. Therefore, the shock absorber should always be in good working condition. [0003] In order to improve the comfort of the vehicle, shock absorbers are used in the chassis of automobiles for shock absorption and buffering, and most of the shock absorbers used in automobile sus...

Claims

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Application Information

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IPC IPC(8): F16F9/32
CPCF16F9/32F16F9/3207F16F9/3235F16F2222/12
Inventor 吴从兵方杰程军辉卢承领陈晓飞张刚
Owner WEST ANHUI UNIV
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