CN218644709U

CN218644709U - Dynamic vibration absorber for automobile tail gate

Info

Publication number: CN218644709U
Application number: CN202222256296.6U
Authority: CN
Inventors: 沈霄峰; 黄年兵; 张文杰; 林雨佳
Original assignee: Jianxin Zhaos Technology Co Ltd
Current assignee: Jianxin Zhaos Technology Co Ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-03-17
Anticipated expiration: 2032-08-24

Abstract

The application discloses car tail-gate dynamic vibration absorber, including quality piece, support and bush, the quality piece become cylindrical structure, quality piece axis direction ascending both ends all be provided with a bush, bush and quality piece pass through the fix with screw, the support on be provided with the mounting hole, the mounting hole periphery part imbed in the bush. Improve the vulcanization efficiency and reduce the cost.

Description

Dynamic vibration absorber for automobile tail gate

Technical Field

The application relates to automobile parts, in particular to an automobile tail gate dynamic vibration absorber.

Background

When the automobile runs on a road bank or a bumpy road, excitation force generated by the road surface is transmitted to the automobile body through the tire and the suspension system, and the automobile body plate is excited to vibrate to generate a roaring sound. Such a booming sound adversely affects the driving feeling of the automobile. In order to eliminate such a booming sound, it is necessary to reduce vibration generated due to road surface excitation.

Vibration isolators or dynamic vibration absorbers are commonly used to reduce vibration. When the exciting force frequency is lower, the common vibration isolator has poor effect, and the vibration reduction effect of the dynamic vibration absorber is more obvious. A dynamic vibration absorber is an apparatus that absorbs vibration energy of an object using a resonance system to reduce vibration of the object. The basic principle of a dynamic vibration absorber is to attach a mass-spring resonance system to a vibrating object, and the reaction force generated by the additional mass-spring resonance system at the time of resonance can reduce the vibration of the vibrating object. The system consisting of the vibrating body and the mass-spring resonance system together can be regarded as consisting of a spring-damped main system (i.e. the vibrating body) and an additional spring system (mass-spring resonance system). The additional spring system produces a vibration 180 out of phase with the spring-damped primary system, thereby canceling out the vibration at a frequency of the spring-damped primary system.

Chinese patent application "a dynamic vibration absorber and a method for adjusting vibration frequency thereof", discloses (announces) no: CN113531043A; disclosed is a method for manufacturing a semiconductor device, which comprises: the dynamic vibration absorber comprises a mounting bracket, a mass block and a rubber plug, wherein the rubber plug is used for connecting the mass block to the mounting bracket, the mass block comprises a basic mass block and at least one additional mass block, and the additional mass block is attached to the basic mass block in a magnetic attraction mode. The method for adjusting the vibration frequency of the dynamic vibration absorber comprises the steps of increasing or decreasing the number of additional mass blocks adsorbed on the basic mass block and/or changing the hardness of the rubber plug. The invention uses the rubber plug as the elastic and damping element of the dynamic vibration absorber, and can flexibly adjust the vibration frequency and the damping of the dynamic vibration absorber by increasing and decreasing the number of the additional mass blocks absorbed on the basic mass block and/or changing the hardness of the used rubber plug, has wide application range, omits the cycle of redesigning and manufacturing, saves the manufacturing cost and improves the efficiency of solving the problem.

In the prior art, a rubber part is generally adopted to connect the mounting bracket and the mass block, but the connection between the mass block and the rubber part is generally vulcanized, and the mass block and the rubber part are vulcanized together, so that the vulcanization cost is high. Moreover, in the prior art, in order to ensure the reliability of the connection between the mass block and the rubber piece, the mass block and the rubber piece need to be further coated by silica gel, so that the silica gel has a high cost.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application will be solved provides an automobile tail-gate dynamic vibration absorber, improves vulcanization efficiency, reduce cost.

The technical scheme adopted by the application is as follows: the dynamic vibration absorber for the tail gate of the automobile comprises a mass block, a support and a bushing, wherein the mass block is of a cylindrical structure, the bushing is arranged at each of two ends of the mass block in the axial direction, the bushing and the mass block are fixed through screws, a mounting hole is formed in the support, and the peripheral part of the mounting hole is embedded into the bushing.

Compared with the prior art, the utility model has the advantages of, it is fixed with bush and quality piece through the screw, compare in prior art rubber spare and quality piece adoption vulcanization molding, the scheme of this application can improve vulcanization efficiency, reduces and vulcanizes manufacturing cost. A mounting hole is provided in the bracket, and the outer peripheral portion of the mounting hole is fitted into the bush by passing the bush through the mounting hole. The connection structure is capable of limiting radial and axial movement between the bushing and the carrier. The technical scheme of this application has effectively improved vulcanization efficiency, reduce cost.

In some embodiments of the present application, the bushing includes a frame and a rubber component, the frame is a bowl-shaped structure, and the rubber component and the frame are integrally formed by vulcanization. In this application, because of the rubber spare no longer vulcanizes together with the matter and is connected, adopt the rubber spare alone to go to constitute the bush, its structural strength, produce can not enough to some extent. Consequently, connect the structure between quality piece and the support in this application for the bush, the bush has the skeleton to support whole rubber spare for whole structural performance is more stable.

In some embodiments of the present application, the rubber member includes an outer sleeve lining an inner wall surface of the frame, and an inner sleeve located in the outer sleeve, and the outer sleeve and the inner sleeve are coaxially arranged.

Specifically, the outer sleeve is matched with the framework in structure, and the outer sleeve is of a bowl-shaped structure. The inner sleeve is of a round tubular structure as a whole.

The bottom surface of the framework is provided with a first through hole for a screw rod of a screw to pass through, the rubber piece is provided with a second through hole for a nail head of the screw to pass through, and the first through hole, the second through hole and the inner sleeve are coaxially arranged. During assembly, the screw penetrates through the rubber piece and the framework and extends into the mass block. The framework and the mass block are fixed by the screws.

In some embodiments of the present application, the frame is made of aluminum. Is the preferred structure for this application.

In the scheme of the application, a silica gel material is not needed to wrap the connecting rubber piece and the mass piece, so that the cost of the connecting rubber piece and the mass piece is effectively reduced. And the framework structure is adopted to support the rubber piece, so that the vulcanization efficiency can be improved, and the vulcanization cost is reduced. Therefore, although the framework structure is added to improve the performance of the whole product, the actual cost is not higher than that of the original structure.

In some embodiments of the present application, the top surface of the rubber member is an end surface far away from the mass block, and the top surface of the rubber member is provided with two protrusions. The two bulges are symmetrically arranged. Through two bellied settings, this application has good shock attenuation cushioning effect in practical application in the axial.

In some embodiments of the present application, the periphery of the mounting hole is provided with a plurality of notches, and the notches are arranged along the radial direction of the mounting hole. Preferably, the periphery of the mounting hole is provided with four notches which are uniformly distributed on the periphery of the mounting hole, and the notches are of U-shaped structures. The notch is add to this application for the support of mounting hole place has certain elastic deformation ability. The deformed rubber piece can pass through the rubber piece during assembly.

In some embodiments of the present application, the bracket portion located at the periphery of the mounting hole is bent to form a limiting member.

Specifically, the limiting part is of an arc-shaped sheet structure. Two locating parts are symmetrically arranged on the periphery of the mounting hole. The limiting piece is positioned between the two notches.

Specifically, the limiting member and the bracket are in smooth transition.

In some embodiments of the application, the outer wall of inner skleeve be provided with round annular groove, the mounting hole periphery be located the annular groove, the locating part be located the annular groove.

Specifically, the periphery of the mounting hole is in contact connection with one side wall surface of the annular groove, and the limiting part is in contact connection with the other side wall of the annular groove. This application has restricted the radial displacement after support and bush assembly through locating part, mounting hole periphery. And the support and the limiting piece are abutted against the inner cylinder piece, and the damping and buffering effect is good in the axial direction.

In some embodiments of the present application, the bracket includes two mounting seats connected to the bushing, and a connecting bar connecting the two mounting seats. Specifically, the connecting strip on be provided with the bead, improve the structural strength of connecting strip.

The mounting hole is arranged on the mounting seat, the longitudinal section of the mounting seat is L-shaped, and the mounting seat is connected with the automobile frame.

The above embodiments may be combined arbitrarily, in accordance with common general knowledge in the art.

Drawings

The present application 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 illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the present application. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on the concept of a composition or construction of the object being described and may include exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a side view of the present application;

FIG. 3 is a cross-sectional view of section AA in FIG. 2;

FIG. 4 is a cross-sectional view of section BB of FIG. 2;

FIG. 5 is a schematic view of a bushing portion;

fig. 6 is a structural schematic diagram of a stent portion.

Wherein the reference numerals are specified as follows: 1. a support; 11. a mounting base; 12. a connecting strip; 2. a mass block; 3. a bushing; 31. a framework; 32. an inner sleeve; 33. an outer sleeve; 4. a first through hole; 5. a second through hole; 6. a protrusion; 7. a notch; 8. a stopper; 9. an annular groove; 10. and (4) screws.

Detailed Description

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

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

An automobile tail gate dynamic vibration absorber is shown in figures 1 to 6: including quality piece 2, support 1 and bush 3, quality piece 2 become cylindrical structure, 2 axial direction ascending both ends of quality piece all be provided with a bush 3, bush 3 and quality piece 2 fixed through screw 10, fixed with bush 3 and quality piece 2 through screw 10, compare in prior art rubber spare and quality piece 2 adoption vulcanization molding, the scheme of this application can improve vulcanization efficiency, reduces vulcanization manufacturing cost.

The bracket 1 is provided with a mounting hole, and the peripheral part of the mounting hole is embedded into the bushing 3. A mounting hole is provided in the bracket 1, and the outer peripheral portion of the mounting hole is fitted into the bush 3 by passing the bush 3 through the mounting hole. The connection structure is capable of limiting radial, axial movement between the liner 3 and the carrier 1. The technical scheme of this application has effectively improved vulcanization efficiency, reduce cost.

Bushing 3 include skeleton 31 and rubber spare, skeleton 31 be bowl structure, rubber spare and the integrative vulcanization of skeleton 31 shaping. In this application, because of the rubber spare no longer vulcanize together with the matter and be connected, adopt the rubber spare alone to go to constitute bush 3, there is not enough in its structural strength, product property ability. Therefore, the structure of connecting between quality piece 2 and support 1 in this application is bush 3, and bush 3 has skeleton 31 to support whole rubber spare for whole structural performance is more stable.

The rubber part comprises an outer sleeve 33 lined on the inner wall surface of the framework 31 and an inner sleeve 32 positioned in the outer sleeve, and the outer sleeve 33 and the inner sleeve 32 are coaxially arranged. Specifically, the outer sleeve 33 is adapted to the structure of the framework 31, and the outer sleeve 33 is in a bowl-shaped structure. The inner sleeve 32 is formed as a tubular structure.

The bottom surface of the framework 31 is provided with a first through hole 4 for a screw rod of the screw 10 to pass through, the rubber part is provided with a second through hole 5 for a nail head of the screw 10 to pass through, and the first through hole 4, the second through hole 5 and the inner sleeve 32 are coaxially arranged. During assembly, the screw 10 extends through the rubber member, the frame 31, and into the mass 2. The screw 10 fixes the skeleton 31 and the mass 2. The framework 31 is made of aluminum. Is the preferred structure for this application.

In the scheme of the application, a silica gel material is not needed to wrap the connecting rubber part and the mass part, so that the cost of the part is effectively reduced. And adopt skeleton 31 structure to go to support rubber spare, can improve vulcanization efficiency, reduce vulcanization cost. Therefore, although the structure of the framework 31 is added to improve the performance of the whole product, the actual cost is not higher than that of the original structure.

The top surface of rubber spare for keeping away from the terminal surface of quality piece 2, the top surface of rubber spare is provided with two archs 6. The two protrusions 6 are symmetrically arranged. Through the setting of two archs 6, this application has good shock attenuation cushioning effect in practical application in the axial.

The periphery of the mounting hole is provided with a plurality of notches 7, and the notches 7 are arranged along the radial direction of the mounting hole. Preferably, the periphery of the mounting hole is provided with four notches 7, the four notches 7 are uniformly distributed on the periphery of the mounting hole, and the notches 7 are of a U-shaped structure. Notch 7 is add to this application for the support 1 of mounting hole place has certain elastic deformation ability. The deformed rubber piece can pass through the rubber piece during assembly.

The part of the bracket 1 positioned on the periphery of the mounting hole is bent to form a limiting piece 8. Specifically, the limiting member 8 is an arc-shaped sheet structure. Two locating parts 8 are symmetrically arranged on the periphery of the mounting hole. The limiting piece 8 is positioned between the two notches 7. Specifically, the limiting member 8 and the bracket 1 are in smooth transition.

The outer wall of inner sleeve 32 be provided with round annular groove 9, the mounting hole periphery be located annular notch 7, locating part 8 be located annular groove 9. Specifically, the periphery of the mounting hole is in contact connection with one side wall surface of the annular groove 9, and the limiting member 8 is in contact connection with the other side wall surface of the annular groove 9. This application has restricted the radial displacement after support 1 and the assembly of bush 3 through locating part 8, mounting hole periphery. And support 1, locating part 8 all lean on inner tube spare, and it also has good shock attenuation buffering effect in the axial.

The bracket 1 comprises two mounting seats 11 connected with the bushing 3 and a connecting strip 12 connecting the two mounting seats 11. Specifically, the connecting strips 12 are provided with convex ribs, so that the structural strength of the connecting strips 12 is improved.

The mounting hole is arranged on the mounting seat 11, the longitudinal section of the mounting seat 11 is L-shaped, and the mounting seat 11 is connected with an automobile frame.

The present application has been described in detail above, and specific examples thereof are used herein to explain the principles and implementations of the present application, which are presented solely to aid in understanding the present application and its core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present application, the present application can also make several improvements and modifications, and those improvements and modifications also fall into the protection scope of the claims of the present application.

Claims

1. The utility model provides an automobile tail-gate dynamic vibration absorber, its characterized in that includes quality piece (2), support (1) and bush (3), quality piece (2) become cylindrical structure, quality piece (2) ascending both ends of axis all be provided with a bush (3), bush (3) and quality piece (2) pass through screw (10) fixed, support (1) on be provided with the mounting hole, mounting hole periphery part embedding bush (3) in.

2. The dynamic vibration absorber for a vehicle tailgate according to claim 1, wherein said bushing (3) comprises a frame (31) and a rubber member, said frame (31) is of a bowl-shaped structure, and said rubber member is integrally vulcanized with said frame (31).

3. The dynamic vibration absorber for a vehicle tailgate according to claim 2, characterized in that said rubber member comprises an outer sleeve (33) lining an inner wall surface of said frame (31), an inner sleeve (32) disposed in said outer sleeve, said outer sleeve (33) being disposed coaxially with said inner sleeve (32).

4. The dynamic vibration absorber for vehicle tailgate according to claim 3, characterized in that said outer sleeve (33) is adapted to the structure of said frame (31), said outer sleeve (33) being bowl-shaped; the inner sleeve (32) is integrally of a round tubular structure.

5. The dynamic vibration absorber for the tailgate of a vehicle as claimed in claim 2, wherein said frame (31) has a first through hole (4) formed in a bottom surface thereof for passing a shank of a screw (10), said rubber member has a second through hole (5) formed therein for passing a head of the screw (10), and said first through hole (4), said second through hole (5) and said inner sleeve (32) are coaxially disposed.

6. The dynamic vibration absorber for a vehicle tailgate according to claim 2, characterized in that the top surface of the rubber member is an end surface remote from the mass (2), the top surface of the rubber member being provided with two protrusions (6).

7. The dynamic vibration absorber for the tail gate of an automobile according to claim 1, wherein a plurality of notches (7) are formed on the periphery of the mounting hole, and the notches (7) are arranged along the radial direction of the mounting hole.

8. The dynamic vibration absorber for a vehicle tail-gate according to claim 7, wherein said mounting hole is provided with four notches (7) at its periphery, said four notches (7) are evenly distributed at the periphery of said mounting hole, and said notches (7) have a U-shaped configuration.

9. The dynamic vibration absorber for the tailgate of a vehicle as claimed in claim 3, characterized in that the bracket (1) at the periphery of the mounting hole is partially bent to form a stopper (8); the limiting piece (8) is of an arc-shaped sheet structure; two limit pieces (8) are symmetrically arranged on the periphery of the mounting hole; the limiting piece (8) is positioned between the two notches (7).

10. The dynamic vibration absorber for the rear door of a vehicle as claimed in claim 9, wherein the outer wall surface of said inner sleeve (32) is provided with a ring-shaped groove (9), the periphery of said mounting hole is located in the ring-shaped notch (7), said stopper (8) is located in the ring-shaped groove (9); the periphery of the mounting hole is in contact connection with one side wall surface of the annular groove (9), and the limiting piece (8) is in contact connection with the other side wall surface of the annular groove (9).