CN207374473U

CN207374473U - A kind of dynamic vibration absorber and automobile

Info

Publication number: CN207374473U
Application number: CN201721476484.2U
Authority: CN
Inventors: 王伟; 谭昱全; 韩坤; 任增杰
Original assignee: Beijing Automotive Research Institute Co Ltd
Current assignee: Beijing Automotive Research Institute Co Ltd
Priority date: 2017-11-08
Filing date: 2017-11-08
Publication date: 2018-05-18
Anticipated expiration: 2027-11-08

Abstract

The utility model provides a kind of dynamic vibration absorber and automobile, including：Pedestal, the first elastomer block, the first mass block, the second elastomer block and the second mass block；Wherein, the pedestal is equipped at least two mounting holes, first elastomer block is arranged on the top of the pedestal, the top of first elastomer block is connected with the bottom of first mass block, the top of first mass block is connected with the bottom of second elastomer block, and the top of second elastomer block is connected with the bottom of second mass block；The top of first elastomer block and the area of the contact surface of the bottom of first mass block, equal to the area at the top of first elastomer block；The top of second elastomer block and the area of the contact surface of the bottom of second mass block, equal to the area at the top of second elastomer block.In this way, absorbing frequency band can be widened, the ability of dynamic vibration absorber attenuation vibration is improved, the vibration of steering wheel can be effectively reduced, so as to improve NVH performances.

Description

A kind of dynamic vibration absorber and automobile

Technical field

The utility model is related to automobile technical field more particularly to a kind of dynamic vibration absorbers and automobile.

Background technology

Noise, vibration and sound vibration roughness (Noise, Vibration, Harshness, abbreviation NVH) performance are to embody vapour One of an important factor for vehicle integrated quality, since steering wheel and driver contact directly, the vibration of steering wheel directly affects comfortably Property and be easy to cause driver's fatigue, and steering wheel is easy to be subject to the excitation of engine and generate vibration again, thus In the development process of auto NVH performance, the problem of vibration of steering wheel is a significant.Automobile vendor is usually taken in side The mode of dynamic vibration absorber is set come the vibration for steering wheel of decaying to Pan Chu, however, the attenuation of current dynamic vibration absorber is vibrated Inferior capabilities, it is difficult to the vibration of steering wheel is effectively reduced, so as to cause the NVH poor-performings of steering wheel.

Utility model content

The utility model embodiment is designed to provide a kind of dynamic vibration absorber and automobile, solves dynamic vibration absorber Decay the inferior capabilities of vibration, it is difficult to effectively reduce the vibration of steering wheel, be asked so as to cause the NVH poor-performings of steering wheel Topic.

In order to achieve the above object, the utility model embodiment provides a kind of dynamic vibration absorber, including：

Pedestal, the first elastomer block, the first mass block, the second elastomer block and the second mass block；

Wherein, the pedestal is equipped at least two mounting holes, and first elastomer block is arranged on the top of the pedestal, institute The top for stating the first elastomer block is connected with the bottom of first mass block, the top of first mass block and second bullet Property block bottom connection, the top of second elastomer block is connected with the bottom of second mass block；

The top of first elastomer block and the area of the contact surface of the bottom of first mass block, equal to described first The area at the top of elastomer block；

The top of second elastomer block and the area of the contact surface of the bottom of second mass block, equal to described second The area at the top of elastomer block.

Optionally, the material of first elastomer block and second elastomer block is rubber.

Optionally, the material of first elastomer block and second elastomer block is polyurethane.

Optionally, the bottom of pedestal position corresponding at least two mounting hole is equipped at least two hollows Shape component, at least two hollow tube-shapes component protrude from the bottom of the pedestal, and at least two hollow tube-shape The hollow part of component and the shape of at least two mounting hole match.

Optionally, the material of first mass block and second mass block is metal.

Optionally, the top of first elastomer block is connected with the bottom of first mass block by way of vulcanization, The top of first mass block is connected with the bottom of second elastomer block by way of vulcanization, second elastomer block Top is connected with the bottom of second mass block by way of vulcanization.

Optionally, the material of the pedestal is aluminium alloy.

Optionally, second elastomer block is internally provided with empty slot.

The utility model embodiment also provides a kind of automobile, the dynamic vibration absorber provided including utility model embodiment.

Optionally, the dynamic vibration absorber is fixed on the vapour by least two mounting hole in a manner of being spirally connected On the steering wheel of vehicle.

In the utility model embodiment, pass through the first elastomer block, the first mass block, the second elastomer block and the second mass block Cooperation, can widen absorbing frequency band, improve the ability of the attenuation vibration of dynamic vibration absorber, can effectively reduce shaking for steering wheel It is dynamic, so as to improve the NVH performances of steering wheel.

Description of the drawings

Fig. 1 is the dimensional structure diagram of the utility model dynamic vibration absorber；

Fig. 2 is another dimensional structure diagram of the utility model dynamic vibration absorber；

Fig. 3 is the dimensional structure diagram of the members of the utility model dynamic vibration absorber；

Fig. 4 is dimensional structure diagram of the utility model dynamic vibration absorber at vehicle steering.

Specific embodiment

In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing And specific embodiment is described in detail.

As shown in Figure 1, the utility model embodiment provides a kind of dynamic vibration absorber, including：

Pedestal 1, the first elastomer block 21, the first mass block 22, the second elastomer block 31 and the second mass block 32；

Wherein, the pedestal is equipped at least two mounting holes 11, and first elastomer block 21 is arranged on the top of the pedestal 1 Portion, the top of first elastomer block 21 are connected with the bottom of first mass block 22, the top of first mass block 22 It is connected with the bottom of second elastomer block 31, the bottom of the top of second elastomer block 31 and second mass block 32 connects It connects；

The top of first elastomer block 21 and the area of the contact surface of the bottom of first mass block 22, equal to described The area at the top of the first elastomer block 21；

The top of second elastomer block 31 and the area of the contact surface of the bottom of second mass block 32, equal to described The area at the top of the second elastomer block 31.

In the utility model embodiment, the pedestal 1 can be used for supporting first elastomer block 21, first mass Block 22, second elastomer block 31 and second mass block 32, and at least two mounting hole 11 and vapour can be passed through The other component connection of vehicle, with the fixed dynamic vibration absorber of installation；Such as it may be mounted on steering wheel or can also pacify It mounted in engine, exhaust pipe etc., to installation site and is not construed as limiting, generally selects at the driving source of vibration or shakes On dynamic path；At least two mounting hole 11 can include four mounting holes, can so ensure the intensity of installation position Enough, make the dynamic vibration absorber not easily to fall off or damage.

First elastomer block 21 and second elastomer block 31, may be employed the elastic material with certain rigidity, Such as the materials such as rubber and polyurethane, usually it is preferred with the larger elastic material of rigidity.First mass block 22 and described The material of two mass blocks 32 to be preferred using metal material, to this and is not construed as limiting.

The contact surface at the top of first elastomer block 21 and the bottom of first mass block 22, it can be understood as by institute State the first elastomer block 21 top be connected with the bottom of first mass block 22 after, first elastomer block 21 and described first The area of joint face between mass block 22；The area of the joint face is equal to the area at the top of first elastomer block 21, this Sample may insure to make full use of the rigidity of first elastomer block 21.The top of second elastomer block 31 and second matter The area of the contact surface of the bottom of gauge block 32, the area equal to the top of second elastomer block 31 is also same logic, right This is repeated no more.

It should be noted that the dynamic vibration absorber is worked based on resonance principle, according to resonance principle, at vibration source One dynamic vibration absorber identical with vibration source frequency is installed, the vibration of vibration source excitation can be absorbed.And dynamic vibration absorber Frequency is related to the rigidity of elastomer block and the quality of mass block, and accordingly, user can be according to the needs of oneself, by changing bullet The property rigidity of block and the quality of mass block, to adjust out the frequency identical with vibration source.In addition, existing dynamic vibration absorber is usually only There are a pair of of elastomer block and mass block, robustness is poor, comparatively, dynamic vibration absorber provided by the utility model has two pairs of bullets Property block and mass block, can improve robustness.

In this way, the utility model embodiment, passes through the first elastomer block 21, the first mass block 22, the second elastomer block 31 and The cooperation of two mass blocks 32, can widen absorbing frequency band, improve the ability of the attenuation vibration of dynamic vibration absorber, can effectively drop The vibration of low steering wheel, so as to improve the NVH performances of steering wheel.

Optionally, the material of first elastomer block and second elastomer block is rubber, in this way, the height using rubber Rigidity can improve absorbing efficiency, and the material of certain first elastomer block and second elastomer block can also be other materials Matter to this and is not construed as limiting.

Optionally, the material of first elastomer block and second elastomer block is polyurethane, in this way, ensureing absorbing On the premise of efficiency, cost can be further saved, the material of certain first elastomer block and second elastomer block may be used also Think other materials, to this and be not construed as limiting.

Optionally, as shown in Fig. 2, the bottom of the pedestal 1 is equipped with at least two mounting holes, the 11 corresponding position At least two hollow tube-shape components 12, at least two hollow tube-shapes component 12 protrude from the bottom of the pedestal 1, and institute The hollow part and the shape of at least two mounting hole 11 for stating at least two hollow tube-shape components 12 match.

Wherein, the hollow part of at least two hollow tube-shapes component 12 and at least two mounting hole 11 are same Axis；At least two hollow tube-shapes component 12 protrudes from the bottom of the pedestal, can reduce the flatness of mounting plane, from And reduce the difficulty of installation.

Optionally, the material of first mass block and second mass block is metal；In this way, the height using metal Density can make the smaller of mass block, structure compacter；Certainly, first mass block and second mass block Material can also be other materials, to this and be not construed as limiting.

Wherein, connected by way of vulcanization, can so make the durability degree higher of junction, intensity also higher, simultaneously Cost is also lower, further, it is also possible to connect by other means, to this and is not construed as limiting.

Optionally, the material of the pedestal is aluminium alloy；In this way, can make the pedestal intensity higher, plasticity is more preferable；When So, the material of the pedestal can also be other materials, such as metal, steel etc. to this and are not construed as limiting.

Optionally, as shown in figure 3, second elastomer block 31 is internally provided with empty slot 311；In this way, it can ensure In the case that the quality of two elastomer blocks 31 meets absorbing requirement, volume is reduced as far as possible, so as to further reduced cost.

The utility model embodiment also provides a kind of automobile, the dynamic vibration absorber provided including the utility model embodiment.

Optionally, as shown in figure 4, the dynamic vibration absorber is by least two mounting hole 11, in a manner of being spirally connected It is fixed on the steering wheel 4 of the automobile.

Specifically, the dynamic vibration absorber can be installed on the inside of steering wheel 4, it can so ensure dynamic vibration absorber Shock attenuation result higher and make the dynamic vibration absorber not easily to fall off or damage.

The above is the preferred embodiment of the utility model, it is noted that for the ordinary skill of the art For personnel, on the premise of principle described in the utility model is not departed from, several improvements and modifications can also be made, these improvement The scope of protection of the utility model is also should be regarded as with retouching.

Claims

1. a kind of dynamic vibration absorber, which is characterized in that including：

Wherein, the pedestal is equipped at least two mounting holes, and first elastomer block is arranged on the top of the pedestal, and described the The top of one elastomer block is connected with the bottom of first mass block, the top of first mass block and second elastomer block Bottom connection, the top of second elastomer block is connected with the bottom of second mass block；

The top of first elastomer block and the area of the contact surface of the bottom of first mass block, equal to the described first elasticity The area at the top of block；

The top of second elastomer block and the area of the contact surface of the bottom of second mass block, equal to the described second elasticity The area at the top of block.

2. dynamic vibration absorber according to claim 1, which is characterized in that first elastomer block and second elastomer block Material be rubber.

3. dynamic vibration absorber according to claim 1, which is characterized in that first elastomer block and second elastomer block Material be polyurethane.

4. dynamic vibration absorber according to any one of claim 1-3, which is characterized in that the bottom of the pedestal with it is described The corresponding position of at least two mounting holes is equipped at least two hollow tube-shape components, at least two hollow tube-shapes component protrusion In the bottom of the pedestal, and the hollow part of at least two hollow tube-shapes component and at least two mounting hole Shape match.

5. dynamic vibration absorber according to claim 4, which is characterized in that first mass block and second mass block Material be metal.

6. dynamic vibration absorber according to claim 5, which is characterized in that the top of first elastomer block and described first The bottom of mass block is connected by way of vulcanization, and the bottom of the top of first mass block and second elastomer block passes through The mode of vulcanization connects, and the top of second elastomer block is connected with the bottom of second mass block by way of vulcanization.

7. dynamic vibration absorber according to claim 6, which is characterized in that the material of the pedestal is aluminium alloy.

8. dynamic vibration absorber according to claim 7, which is characterized in that second elastomer block is internally provided with empty slot.

9. a kind of automobile, which is characterized in that including the dynamic vibration absorber any one of just like claim 1-8.

10. automobile according to claim 9, which is characterized in that the dynamic vibration absorber is installed by described at least two Hole is fixed in a manner of being spirally connected on the steering wheel of the automobile.