CN201747858U

CN201747858U - Dynamic vibration absorber with adjustable frequency

Info

Publication number: CN201747858U
Application number: CN2010202446122U
Authority: CN
Inventors: 常辉
Original assignee: SAIC Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2010-06-30
Filing date: 2010-06-30
Publication date: 2011-02-16
Anticipated expiration: 2020-06-30

Abstract

The utility model discloses a dynamic vibration absorber with the adjustable frequency, which comprises a main vibration absorption unit (1) and a support saddle (2), wherein one end of the main vibration absorption unit (1) is fixedly connected with one side of the support saddle (2) through a connecting bracket; a plurality of masses (3) are fixedly connected to the other end of the main vibration absorption unit (1); and two adjacent masses (3) are connected through a bolt (4). By adopting the technical scheme, the utility model has the advantages that the structure is simple; the natural frequency of a system is changed through changing the amount of the masses, so that the vibration amplitudes of different resonant frequencies are effectively attenuated, and the resonance noise is reduced; and the masses that are connected through the bolts are disassembled and assembled conveniently.

Description

A kind of dynamic vibration absorber of adjustable frequency

Technical field

The utility model relates to a kind of dynamic vibration absorber, more specifically says, the utility model relates to a kind of dynamic vibration absorber of adjustable frequency.

Background technique

Dynamic vibration absorber is a kind of of vibration damper, it is based on the theory of seat vibration, the vibration system of a single-degree-of-freedom is become coupled system by increasing by one " spring-quality ", so just reduced the amplitude of resonance, the noise amplitude that resonance is caused is reduced.In the car load development process; produce the resonance of different frequency through regular meeting; modal method is to solve resonance problem by increasing bump leveller at present; but in order to verify shock attenuation result effectively; just need to make the bump leveller of different frequency; like this time cycle longer, cost improves, but also influence the progress that car load is developed.

The model utility content

Problem to be solved in the utility model provides a kind of dynamic vibration absorber of adjustable frequency, its objective is to make things convenient for the adjust system natural frequency.

To achieve these goals, the technological scheme taked of the utility model is:

The dynamic vibration absorber of this adjustable frequency provided by the utility model, comprise main absorbing unit and bearing, one end of described main absorbing unit is simultaneously fixedly connected by being connected support with bearing, the other end of described main absorbing unit is fixedly connected with a plurality of mass blockes, and adjacent two mass blockes connect by bolt.

Three faces in addition of described bearing are pasted with the absorbing parts.

The material of described main absorbing unit is a rubber.

Described bearing is the die casting aluminum component.

Described mass block is an ironcasting.

Described bolt is a stud.

Adopt technique scheme, the dynamic vibration absorber of this adjustable frequency that the utility model provides, simple in structure, change system frequency by the quantity that changes mass block, the vibration amplitude of the different resonant frequencies that decays effectively, reduce resonance noise, adopt bolt dismounting easy to connect between the mass block.

Description of drawings

Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are made brief description:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A face structural representation of Fig. 1.

Be labeled as among the figure:

1, main absorbing unit, 2, bearing, 3, adjustable mass block, 4, bolt.

Embodiment

Contrast accompanying drawing below, by description to embodiment, to effect and working principle, the manufacturing process of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present utility model, technological scheme had more complete, accurate and deep understanding to help those skilled in the art.

The of the present utility model structure expressed as Fig. 1 to 2, this is a kind of dynamic vibration absorber of adjustable frequency, comprises main absorbing unit 1 and bearing 2, an end of described main absorbing unit 1 is fixedly connected by being connected support with bearing 2 one sides.

In order to solve the problem that exists at the described present known technology of this specification background technique part and to overcome its defective, realize making things convenient for the adjust system natural frequency.The technological scheme that the utility model is taked is:

Extremely shown in Figure 2 as Fig. 1, the dynamic vibration absorber of this adjustable frequency provided by the utility model, the other end of described main absorbing unit 1 is fixedly connected with a plurality of mass blockes 3, and adjacent two mass blockes 3 connect by bolt 4.

Adopt technique scheme, simple in structure, change system frequency by the quantity that changes mass block 3, the vibration amplitude of the different resonant frequencies that decays effectively reduces resonance noise, adopts bolt 4 to connect easy disassembly between the mass block 3.

To shown in Figure 2, three faces in addition of described bearing 2 are pasted with the absorbing parts as Fig. 1.

Adopt technique scheme, three faces in addition of described bearing 2 are pasted with the absorbing parts, so neatly conversion absorbing direction.

To shown in Figure 2, the material of described main absorbing unit 1 is a rubber as Fig. 1.

Described bearing 2 is die casting aluminum components.

Described mass block 3 is an ironcasting.

Adopt technique scheme, described main absorbing unit 1 is that rubber spring and the steel stamping part of deciding rigidity sulfides, and has attacked tapped hole on the described bearing 2, with connecting described main absorbing unit 1, attacked tapped hole on the described mass block 3, with the quantity that adjusts mass block.

To shown in Figure 2, described bolt 4 is stud as Fig. 1.

Adopt technique scheme, described bolt 4 is stud, can connect more mass block 3 like this.

The technical scheme that the utility model adopts compared with prior art, has obvious difference, possessed substantial characteristics, and obtained technically progress, be worth in industrial promotion and application, so, the utlity model has novelty, creativeness and practicality.

By reference to the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.

Claims

1. the dynamic vibration absorber of an adjustable frequency, comprise main absorbing unit (1) and bearing (2), one end of described main absorbing unit (1) is fixedly connected by being connected support with bearing (2) one side, it is characterized in that: the other end of described main absorbing unit (1) is fixedly connected with a plurality of mass blockes (3), and adjacent two mass blockes (3) connect by bolt (4).

2. according to the dynamic vibration absorber of the described adjustable frequency of claim 1, it is characterized in that: three faces in addition of described bearing (2) are pasted with the absorbing parts.

3. according to the dynamic vibration absorber of the described adjustable frequency of claim 1, it is characterized in that: the material of described main absorbing unit (1) is a rubber.

4. according to the dynamic vibration absorber of claim 1 or 2 described adjustable frequencies, it is characterized in that: described bearing (2) is the die casting aluminum component.

5. according to the dynamic vibration absorber of the described adjustable frequency of claim 1, it is characterized in that: described mass block (3) is an ironcasting.

6. according to the dynamic vibration absorber of the described adjustable frequency of claim 1, it is characterized in that: described bolt (4) is a stud.