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a dynamic shock absorber

A dynamic vibration absorber and mass block technology, applied in vibration suppression adjustment, spring/shock absorber, non-rotational vibration suppression, etc. problems, to achieve the effect of adjustable natural frequency, wide vibration damping bandwidth, and flexible use

Active Publication Date: 2020-06-16
NINGBO TUOPU GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adjustable natural frequency can meet different needs, and can realize the function of "one thing with multiple purposes". However, the vibration reduction effect of these single-stage vibration absorbers is limited, and the vibration reduction bandwidth is narrow. When the range of the ground changes, its working performance is greatly reduced and its stability is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment one: if Figure 1-Figure 7 As shown, a dynamic vibration absorber includes a first vibration-absorbing assembly and a second vibration-absorbing assembly, the first vibration-absorbing assembly includes an upper mass 1 and an elastic support 2, the upper mass 1 is detachably mounted on the elastic support 2, and the second The vibration-absorbing assembly includes a rubber block 3 and a lower mass block 4, the lower mass block 4 is located in the elastic support 2, a rubber block 3 is arranged between the elastic support 2 and the lower mass block 4, and the rubber block 3 and the lower mass block 4 are detachably connected .

Embodiment 2

[0027] Embodiment two: if Figure 1-Figure 3 As shown, a dynamic vibration absorber includes a first vibration-absorbing assembly and a second vibration-absorbing assembly, the first vibration-absorbing assembly includes an upper mass 1 and an elastic support 2, the upper mass 1 is detachably mounted on the elastic support 2, and the second The vibration-absorbing assembly includes a rubber block 3 and a lower mass block 4, the lower mass block 4 is located in the elastic support 2, a rubber block 3 is arranged between the elastic support 2 and the lower mass block 4, and the rubber block 3 and the lower mass block 4 are detachably connected .

[0028] In this specific example, as Figure 4 and Figure 6As shown, the elastic bracket 2 includes a beam part 5 for installing the upper mass block 1 and a mounting part 6 fixed at both ends of the beam part 5. The mounting part 6 is used for connecting with the system to be damped, and the beam part 5 includes an intermediate conn...

Embodiment 3

[0033] Embodiment three: other parts are identical with embodiment two, and its difference is: as Figure 7 As shown, the middle connecting plate 51 includes a left connecting plate 512 and a right connecting plate 513, wherein a first connecting arm 511 is fixedly connected with one end of the left connecting plate 512, and the other end of the left connecting plate 512 is equipped with a locking arm 5121, and the upper locking arm 5121 is provided with an upper through hole 5121a matched with the screw rod 8, and the other first connecting arm 511 is fixedly connected with one end of the right connecting plate 513, and the other end of the right connecting plate 513 is provided with a lower clamping arm 5131, and the lower clamping arm 5131 A lower through hole 5131a matched with the screw rod 8 is provided on the top. After the left connecting plate 512 and the right connecting plate 513 are butted left and right, the upper arm 5121 and the lower arm 5131 are stacked up and ...

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Abstract

The invention discloses a dynamic absorber which comprises a first vibration absorption assembly and a second vibration absorption assembly. The first vibration absorption assembly comprises an uppermass block and an elastic support. The upper mass block is detachably mounted on the elastic support. The second vibration absorption assembly comprises a rubber block and a lower mass block. The lower mass block is located in the elastic support. The rubber block is arranged between the elastic support and the lower mass block. The rubber block and the lower mass block are connected detachably. The dynamic absorber has the advantages that the first vibration absorption assembly and the second vibration absorption assembly are combined to form the two-stage series-connection dynamic absorber,and the advantages of being large in vibration reduction bandwidth, good in vibration reduction effect and good in robust performance are achieved; the upper mass block, the rubber block and the lowermass block are detachably connected, and it is guaranteed that the mass of the dynamic absorber is adjustable; the detachable connection manner of the elastic support guarantees that the rigidity ofthe dynamic absorber is adjustable, and therefore the inherent frequency is adjustable; and the dynamic absorber can be changed into a dynamic absorber adjustable in single-stage frequency according to needs, and use is more flexible.

Description

technical field [0001] The invention relates to the technical field of automobile shock absorbers, in particular to a dynamic shock absorber. Background technique [0002] Up to now, the dynamic shock absorber is an important part of the car. Usually, dynamic shock absorbers are installed on components such as frame, chassis, steering wheel, etc. that vibrate greatly or cause noise inside the car, in order to attenuate the vibration of the structure to the maximum extent, so as to meet the NVH performance of the whole vehicle. [0003] At present, the common dynamic vibration absorber is composed of a mass block and a rubber block. Its vibration reduction bandwidth is narrow, and the vibration reduction effect is not ideal. When the interference frequency changes greatly, the vibration reduction effect of the vibration absorber will be greatly reduced. In recent years, some dynamic vibration absorber structures with adjustable stiffness have emerged. The principle is to cha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/08
CPCF16F15/085
Inventor 高燕上官文斌王斌潘孝勇刘乾
Owner NINGBO TUOPU GROUP CO LTD
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