CN215214565U

CN215214565U - Dynamic vibration absorber

Info

Publication number: CN215214565U
Application number: CN202120452726.4U
Authority: CN
Inventors: 林晓存; 陈辉; 顾鹏
Original assignee: Jianxin Zhaos Group Corp
Current assignee: Jianxin Zhaos Technology Co Ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-12-17
Anticipated expiration: 2031-03-02

Abstract

The utility model discloses a dynamic vibration absorber, including bracket component, rubber spare and balancing weight, the balancing weight pass through the rubber spare and install in the bracket component, the balancing weight surface wrap up by the rubber spare, the rubber spare including keep away from the middle part of lower carriage both sides and be close to the tip of lower carriage both sides, the middle part thickness of rubber spare is less than the tip thickness of rubber spare. Optimize the structural setting of rubber spare, avoid the balancing weight striking to produce the abnormal sound.

Description

Dynamic vibration absorber

Technical Field

The utility model belongs to the technical field of automobile parts and specifically relates to a dynamic vibration absorber is related to.

Background

The NVH quality of automobiles is more and more concerned by customers, and the most prominent problem of NVH noise comprises vibration noise in a cab caused by an engine, wherein the vibration noise is generated because an engine power assembly generates excitation along with the rotation motion of a cylinder and is transmitted to the cab through a suspension and a suspension subframe. The existing noise reduction device and method on the auxiliary frame of the automobile provide an empirical determination method of an elastic damping system: the natural frequency of the shock absorber is the same as the natural frequency of the subframe, thereby determining the stiffness of the elastic damper.

The vibration absorber generally includes a weight, a rubber member and a metal bracket. The balancing weight is connected with the metal support through an elastic rubber piece. However, in the driving process of the automobile, if the counterweight block collides with the metal bracket, abnormal sound to a certain extent is generated due to the collision.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a dynamic vibration absorber is provided, optimize the structure setting of rubber spare, avoid the balancing weight striking to produce the abnormal sound.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a dynamic vibration absorber, includes bracket component, rubber spare and balancing weight, the balancing weight pass through the rubber spare and install in the bracket component, the balancing weight surface wrap up by the rubber spare, the rubber spare including keep away from the middle part of lower carriage both sides and be close to the tip of lower carriage both sides, the middle part thickness of rubber spare is less than the tip thickness of rubber spare.

Compared with the prior art, the utility model has the advantages of the utility model discloses in the use, be located the balancing weight at bracket component center if produce the collision with the bracket component. The impact parts are concentrated at two end parts of the balancing weight, and a rubber part structure with a thin middle part and thick end parts is adopted. The thicker end part collides with the bracket component, so that the shock absorption and buffering functions are good, and abnormal sound is not generated during collision. The thinner middle part is in a clearance state when the balancing weight collides with the bracket component, and does not collide with the bracket component. And rubber materials can be saved, and the material cost is reduced.

The utility model discloses further preferred scheme: the balancing weight is of a cuboid structure, and the outer surface of the balancing weight is wrapped by the rubber piece.

Specifically, the rubber spare all wraps up six sides of balancing weight, and wherein the rubber spare that is located the leading flank, trailing flank, top surface, the bottom surface of balancing weight is non-planar structure, but the trapezoidal face that the middle part is inwards sunken.

Furthermore, the bracket component comprises an upper bracket and a lower bracket, the lower bracket is of a bent plate structure, and the cross section of the lower bracket is U-shaped.

The utility model discloses set up the plate body structure that the lower carriage is the U-shaped, including can wrapping up the balancing weight. The lower support comprises a bottom surface, a left side surface and a right side surface, and the bottom surface, the left side surface and the right side surface are all planes.

The utility model discloses a balancing weight is rectangle massive structure, and the three faces of the lower carriage that corresponds with it also design into planar structure, installation balancing weight that can be better.

There is the interval between the bottom surface of balancing weight and lower carriage, and the lower carriage has further protected the below of balancing weight. The lower support realizes the protection of the lower part, the left part and the right part of the balancing weight in three directions.

Furthermore, the upper bracket is of a plate structure and is positioned above the assembling block.

The utility model discloses set up the upper bracket, can wrap up the assembly piece below it. Furthermore, the upper bracket is matched with the lower bracket to wrap the balancing weight, so that the assembly block structure is protected.

Furthermore, the front side of the upper bracket is provided with a front baffle which is positioned in front of the balancing weight, and the rear side surface of the front baffle is provided with a shock pad.

Specifically, the upper bracket is provided with two front baffles, and the two front baffles are arranged on the front side of the upper bracket in a left-right mode. The front baffle and the balancing weight are spaced, and the shock pad and the balancing weight are spaced. The front side of balancing weight has further been protected to preceding baffle.

Furthermore, the rear side of upper bracket be provided with the backplate, the backplate be located the balancing weight rear, the leading flank of backplate be provided with the shock pad.

Specifically, the upper bracket is provided with two rear baffles, and the two rear baffles are arranged on the rear side of the upper bracket in a left-right mode. The rear baffle plate and the balancing weight are spaced, and the shock pad and the balancing weight are spaced. The back baffle further protects the rear side of the counterweight.

So far, the upper bracket further protects the upper part, the rear part, the front part and the three directions of the balancing weight.

Furthermore, the two side wall surfaces of the lower support are provided with cushion pads, support legs are arranged between the two sides of the rubber piece and the cushion pads, and the rubber piece is connected with the cushion pads through the support legs.

The inner wall surface of the lower bracket is connected through the support legs, and the assembling speed is high, so that the balancing weight is located in the lower bracket and does not directly contact with the lower bracket. The utility model provides a stabilizer blade is directly vulcanized by rubber and is obtained, and stabilizer blade and rubber spare are as an organic whole promptly.

Furthermore, one side of the rubber part is provided with two support legs.

For the utility model discloses an optimal structure can enough realize good shock attenuation cushioning effect.

Furthermore, the bottom surface of the lower support is provided with a lower notch.

The utility model discloses in, the top surface and the bottom surface area of balancing weight are great, and the bottom surface of lower carriage will cover the balancing weight, and the bottom surface area of lower carriage is great so, and its structural strength satisfies the demand. Therefore, the lower notch is further formed in the surface of the lower support, the material cost is reduced, and the overall quality is reduced.

Furthermore, the top surface of the upper bracket is provided with an upper notch.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a partial schematic structural diagram of the present invention;

FIG. 4 is a schematic view of a part of the structure of the present invention;

FIG. 5 is a first cross-sectional view of the rubber member of the present invention;

fig. 6 is a second cross-sectional view of the rubber member of the present invention.

Wherein the reference numerals are specified as follows: 1. an upper bracket; 2. a lower bracket; 3. a rubber member; 3a, a middle part; 3b, end portion; 4. a balancing weight; 5. a support leg; 6. an upper connecting piece; 7. a lower connecting piece; 8. a front baffle; 9. a tailgate; 10. an upper notch; 11. a lower notch; 12. a cushion pad; 13. a shock-absorbing pad.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1 to 6: the utility model provides a dynamic vibration absorber, includes bracket component, rubber spare 3 and balancing weight 4, balancing weight 4 install in the bracket component through

rubber spare

3, 4 surfaces of balancing weight wrap up by rubber spare 3, rubber spare 3 including keep away from the middle part 3a of 2 both sides of lower carriage and be close to the tip 3b of 2 both sides of lower carriage, the middle part 3a thickness of rubber spare 3 is less than the tip 3b thickness of rubber spare 3.

The utility model discloses in the use, be located balancing weight 4 at bracket component center if produce the collision with the bracket component. The impact parts are concentrated at two end parts 3b of the balancing weight 4, and a rubber part 3 structure with a thin middle part 3a and a thick end part 3b is adopted. The thicker end part 3b collides with the bracket component, has good shock absorption and buffering effects, and does not generate abnormal sound during collision. The thinner middle part 3a is in a clearance state when the balancing weight 4 collides with the bracket component, and does not collide with the bracket component. And rubber materials can be saved, and the material cost is reduced.

The utility model discloses further preferred scheme: the bracket assembly comprises an upper bracket 1 and a lower bracket 2. The balancing weight 4 is a rectangular block structure, and the balancing weight 4 is positioned in the middle of the lower bracket 2. The structure of balancing weight 4 does the utility model discloses an optimal structure, the cooperation is joined in marriage the structure that the piece further set up lower carriage 2, and lower carriage 2 sets up in balancing weight 4 periphery.

The lower support 2 is of a bent plate body structure, and the cross section of the lower support 2 is U-shaped. The utility model discloses set up lower carriage 2 and be the plate body structure of U-shaped, can wrap up including balancing weight 4. The lower support 2 comprises a bottom surface, a left side surface and a right side surface, and the bottom surface, the left side surface and the right side surface are all planes. The utility model discloses a balancing weight 4 is rectangle massive structure, and three faces of the lower carriage 2 that corresponds so also design into planar structure, installation balancing weight 4 that can be better. There is the interval between the bottom surface of balancing weight 4 and lower carriage 2, and lower carriage 2 has further protected the below of balancing weight 4. The lower support 2 realizes the protection of the lower part, the left part and the right part of the balancing weight 4 in three directions.

The upper bracket 1 is of a plate body structure, and the upper bracket 1 is positioned above the assembling block. The utility model discloses set up upper bracket 1, can wrap up the assembly piece below it. The upper bracket 1 is matched with the lower bracket 2 to wrap the balancing weight 4, so that the assembly block structure is protected.

Further, the lower bracket 2 comprises a top surface, and the top surface is a plane. The utility model discloses a balancing weight 4 is rectangle massive structure, and the top surface of upper bracket 1 who corresponds so also designs into planar structure, installation balancing weight 4 that can be better.

The front side of the upper bracket 1 is provided with a front baffle 8, the front baffle 8 is positioned in front of the balancing weight 4, and the rear side surface of the front baffle 8 is provided with a shock pad 13. Specifically, the upper bracket 1 is provided with two front baffles 8, and the two front baffles 8 are arranged on the front side of the upper bracket 1 in a left-right mode. There is the interval between preceding baffle 8 and the balancing weight 4, shock pad 13 and balancing weight 4 between have the interval. The front side of the counterweight 4 is further protected by a front baffle 8.

The rear side of the upper support 1 is provided with a rear baffle 9, the rear baffle 9 is positioned behind the balancing weight 4, and the front side surface of the rear baffle 9 is provided with a shock pad 13. Specifically, the upper bracket 1 is provided with two rear baffles 9, and the two rear baffles 9 are arranged on the rear side of the upper bracket 1. There is the interval between backplate 9 and the balancing weight 4, shock pad 13 and balancing weight 4 between have the interval. The rear side of the counterweight 4 is further protected by a tailgate 9.

Up to this point, the upper bracket 1 further protects the upper part, the rear part, the front part and the three directions of the counterweight block 4.

The two sides of the lower support 2 and the bottom of the lower support 2 are provided with lower connecting pieces 7, and the lower connecting pieces 7 and the lower support 2 are integrally formed. The utility model discloses set up the connecting piece and be used for installing in the car the utility model discloses. And the structural strength of the connecting piece and the lower bracket 2 which are integrally formed is higher, and the structure is more stable after installation.

The both sides of upper bracket 1 and the top of upper bracket 1 all be provided with upper connecting piece 6, upper connecting piece 6 and upper bracket 1 integrated into one piece. The utility model discloses set up the connecting piece and be used for installing in the car the utility model discloses. And the structural strength of the connecting piece and the lower bracket 2 which are integrally formed is higher, and the structure is more stable after installation.

The upper connecting piece 6 is fixedly connected with the lower connecting piece 7. Specifically speaking, the utility model discloses an upper bracket 1 is provided with three upper junction spare 6, lower carriage 2 on be provided with three lower junction spare 7, upper junction spare 6 and lower junction spare 7 one-to-one to connect fixedly. Thereby forming a space in which the weight 4 can be installed. The matching block is wrapped by the upper bracket 1 and the lower bracket 2.

The bottom surface of the lower bracket 2 is provided with a lower notch 11. The utility model discloses in, the top surface and the bottom surface area of balancing weight 4 are great, and the bottom surface of lower carriage 2 will cover balancing weight 4, and the bottom surface area of lower carriage 2 is great so, and its structural strength satisfies the demand. Therefore, the lower notch 11 is further formed on the surface of the lower bracket 2, so that the material cost is reduced, and the overall quality is reduced.

The top surface of the upper bracket 1 is provided with an upper notch 10. The utility model discloses in, the top surface and the bottom surface area of balancing weight 4 are great, and the bottom surface of lower carriage 2 will cover balancing weight 4, and the bottom surface area of lower carriage 2 is great so, and its structural strength satisfies the demand. Therefore, the lower notch 11 is further formed on the surface of the lower bracket 2, so that the material cost is reduced, and the overall quality is reduced.

Balancing weight 4 be the cuboid structure, rubber spare 3 the surface parcel that will join in marriage the dress piece. Specifically, the rubber member 3 wraps six sides of the counterweight block 4, wherein the rubber member 3 located on the front side, the rear side, the top surface and the bottom surface of the counterweight block 4 is of a non-planar structure, and is a trapezoidal surface with a middle part 3a recessed inwards.

The two side wall surfaces of the lower support 2 are provided with cushion pads 12, support legs 5 are arranged between the two sides of the rubber part 3 and the cushion pads 12, and the rubber part 3 is connected with the cushion pads 12 through the support legs 5.

The inner wall surface of the lower bracket 2 is connected by the leg 5 and the fitting is quick, so that the weight block 4 is located in the lower bracket 2 and does not come into direct contact with the lower bracket 2. The utility model provides a stabilizer blade 5 is directly vulcanized by rubber and is obtained, and stabilizer blade 5 is as an organic whole with rubber spare 3 promptly.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above is to the utility model discloses going on the detailed introduction, having used specific individual example to right in this paper the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment only is used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a dynamic vibration absorber, includes bracket component, rubber spare (3) and balancing weight (4), its characterized in that balancing weight (4) install in the bracket component through rubber spare (3), balancing weight (4) surface by rubber spare (3) parcel, rubber spare (3) including keep away from middle part (3 a) of lower carriage (2) both sides and be close to tip (3 b) of lower carriage (2) both sides, middle part (3 a) thickness of rubber spare (3) is less than tip (3 b) thickness of rubber spare (3).

2. The dynamic vibration absorber according to claim 1, wherein said weight member (4) is a rectangular parallelepiped, and said rubber member (3) covers an outer surface of said weight member (4).

3. The dynamic vibration absorber according to claim 1, wherein said bracket assembly comprises an upper bracket (1) and a lower bracket (2), said lower bracket (2) is of a bent plate structure, and the cross section of said lower bracket (2) is U-shaped.

4. A dynamic vibration absorber according to claim 3 wherein said upper frame (1) is of plate construction, said upper frame (1) being located above the attachment block.

5. The dynamic vibration absorber according to claim 4, wherein said upper frame (1) is provided at a front side thereof with a front baffle (8), said front baffle (8) being located in front of said weight (4), and a rear side of said front baffle (8) is provided with a vibration damper (13).

6. The dynamic vibration absorber according to claim 4, wherein said upper frame (1) is provided at a rear side thereof with a backplate (9), said backplate (9) being located behind the counterweight (4), and a front side of said backplate (9) being provided with a vibration-damping pad (13).

7. The dynamic vibration absorber according to claim 3, wherein said lower frame (2) is provided with cushions (12) on both side walls, and said rubber member (3) is provided with legs (5) between both sides thereof and said cushions (12), said rubber member (3) being connected to said cushions (12) via said legs (5).

8. A dynamic vibration absorber according to claim 5, characterised in that said rubber element (3) is provided with two legs (5) on one side.

9. The dynamic vibration absorber according to claim 3, wherein said lower bracket (2) is provided with a lower notch (11) at a bottom surface thereof.

10. The dynamic vibration absorber according to claim 3, wherein said upper bracket (1) is provided with an upper notch (10) at its top surface.