CN212796441U - Dynamic vibration absorber, torsion beam assembly and vehicle - Google Patents
Dynamic vibration absorber, torsion beam assembly and vehicle Download PDFInfo
- Publication number
- CN212796441U CN212796441U CN202021517670.8U CN202021517670U CN212796441U CN 212796441 U CN212796441 U CN 212796441U CN 202021517670 U CN202021517670 U CN 202021517670U CN 212796441 U CN212796441 U CN 212796441U
- Authority
- CN
- China
- Prior art keywords
- torsion beam
- beam body
- elastic
- vibration absorber
- dynamic vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The utility model provides a dynamic vibration absorber, torsion beam assembly and vehicle. This dynamic vibration absorber sets up the middle part at the torsion beam body, the dynamic vibration absorber includes: the two elastic pieces are arranged at intervals, are arranged in the torsion beam body and are connected with the inner wall of the torsion beam body; and the balancing weight is connected between the two elastic pieces and is positioned in the torsion beam body, and a gap is formed between the balancing weight and the inner wall of the torsion beam body so as to inhibit the vibration of the torsion beam body through the vibration of the balancing weight when the vibration frequency of the balancing weight is equal to or close to the vibration frequency of the torsion beam body. The utility model discloses the scheme can avoid the hard contact of balancing weight and torsion beam assembly to reduce the road noise problem that torsion beam bending vibration arouses from the source, and, the fatigue of trompil position when having avoided the welding seam fatigue or bolt installation, balanced the contradiction between NVH demand and the durable attribute.
Description
Technical Field
The utility model relates to an automotive suspension system designs and makes technical field, especially relates to a dynamic vibration absorber, torsion beam assembly and vehicle.
Background
The torsion beam is widely applied to the automobile industry as an effective means for reducing the weight of the whole automobile, improving the energy consumption of the whole automobile and controlling the cost of the whole automobile. However, with the improvement of living standard of people, the requirement for nvh (noise Vibration and harshness) of the whole vehicle is higher and higher, and the Vibration near the torsion beam mode directly affects the road noise level of the whole vehicle.
In the prior art, a torsion beam assembly is mostly in an open single-sheet stamping structure or a closed mould pressing type, and the torsion beam needs to absorb excitation of a road surface through torsion of the torsion beam, so that an X-direction bending mode and a Z-direction bending mode of the torsion beam are generally not high, and a peak value is brought to road noise in NVH of a whole vehicle. Therefore, it is required to develop a dynamic vibration absorber capable of being mounted on the torsion beam.
For example, there are prior art dynamic vibration absorbers mounted on the trailing arm of the torsion beam. However, if mounted on the trailing arm of the torsion beam, it needs to be present in pairs, which doubles the price. For another example, a torsion beam dynamic vibration absorber mounting platform exists in the prior art, but in the actual road test process, it is found that the local endurance fatigue of the welding seam or the bolt mounting hole of the mounting bracket cannot meet the project design requirements because the torsion beam bears the torsional alternating load in the operation process.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a dynamic vibration absorber among the prior art will be solved to an aim at with high costs and the welding seam or the local durable fatigue of bolt mounting hole of installing support can't reach the technical problem of project design requirement.
The utility model discloses a further on the basis of satisfying the basic function of the performance of shaking, reduce the bump leveller quality, make the vibration amplitude of torsion beam body accord with the target requirement.
The utility model discloses a still further purpose reduces design cost, improves the commonality.
Particularly, the utility model provides a dynamic vibration absorber sets up the middle part at the torsion beam body, dynamic vibration absorber includes:
the two elastic pieces are arranged at intervals, are arranged in the torsion beam body and are connected with the inner wall of the torsion beam body;
and the balancing weight is connected between the two elastic pieces and is positioned in the torsion beam body, and a gap is formed between the balancing weight and the inner wall of the torsion beam body so as to inhibit the vibration of the torsion beam body through the vibration of the balancing weight when the vibration frequency of the balancing weight is equal to or close to the vibration frequency of the torsion beam body.
Optionally, the weight block is connected with the elastic members through a connecting member, the connecting member is configured to be elongated, and the length of the connecting member is set to be greater than the distance between the two elastic members.
Optionally, the length of the connecting member is set to be less than or equal to the distance between the outer edges of the two elastic members.
Optionally, the connecting member is inserted into the inside of the weight block, and two ends of the connecting member respectively extend out of the weight block along opposite directions and are respectively connected with the two elastic members.
Optionally, the dynamic vibration absorber further comprises:
and the two elastic external members are respectively arranged in the two elastic pieces, and the two elastic external members are respectively sleeved at two ends of the connecting piece.
Optionally, an outer surface of the weight block is coated with an elastic layer.
Particularly, the utility model also provides a torsion beam assembly, including the torsion beam body and as aforementioned dynamic vibration absorber.
In particular, the utility model also provides a vehicle, includes such as aforementioned torsion beam assembly.
According to the utility model discloses a scheme is through setting up the elastic component in balancing weight both sides, and makes the elastic component connect on the inner wall of the mid portion of torsion beam assembly, from this the balancing weight can not with the mid portion direct contact of torsion beam assembly, can avoid the hard contact of balancing weight and torsion beam assembly to reduce the road noise problem that torsion beam bending vibration arouses from the source. And the elastic part is solidified on the torsion beam assembly through a vulcanization process, so that the conventional welding or bolt installation mode is broken, the fatigue of a welding seam or the fatigue of a hole opening position during bolt installation is avoided, the contradiction between the NVH requirement and the durability attribute is balanced, and various requirements of a project are met. In addition, only need in the mid portion of torsion beam assembly install one this dynamic vibration absorber can, need not to install two or more, compare the scheme that needs two dynamic vibration absorbers of installation among the prior art, the cost is lower.
And, because this balancing weight is connected through connecting piece and elastic component, consequently, when changing the torsion beam assembly or on different motorcycle types, when the balancing weight of different masses is required, only need to change this balancing weight can, and need not redesign dynamic vibration absorber's structure to reduce design cost, realized the commonality.
The dynamic vibration absorber is installed at the middle position of the power beam assembly, and the weight required by the dynamic vibration absorber is the lightest. Therefore, on the basis of meeting the basic function of vibration absorption performance, the mass of the vibration absorption block is reduced, and the vibration amplitude of the torsion beam body meets the target requirement.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 shows a schematic block diagram of a torsion beam assembly according to an embodiment of the present invention;
fig. 2 shows a schematic block diagram of a dynamic vibration absorber according to an embodiment of the present invention;
in the figure: 1-torsion beam assembly, 2-torsion beam body, 3-dynamic vibration absorber, 31-elastic element, 311-first elastic element, 312-second elastic element, 313-first mounting hole, 314-second mounting hole, 315-inner edge, 316-outer edge, 32-counterweight, 321-through hole, 33-connecting element, 34-elastic sleeve element, 341-first elastic sleeve element and 342-second elastic sleeve element.
Detailed Description
Fig. 1 shows a schematic structural view of a torsion beam assembly according to an embodiment of the present invention. As shown in fig. 1, a portion of the intermediate portion of the torsion beam body 2 is cut away to expose the dynamic vibration absorber 3. The torsion beam assembly 1 includes a torsion beam body 2 and a dynamic vibration absorber 3, the torsion beam body 2 having a middle portion, the dynamic vibration absorber 3 being located inside the middle portion of the torsion beam body 2.
Fig. 2 shows a schematic block diagram of the dynamic vibration absorber 3 according to an embodiment of the present invention. As shown in fig. 2, the dynamic-vibration absorber 3 includes two elastic members 31, a weight 32, and a connecting member 33. Two elastic members 31 are arranged at intervals, and each of the two elastic members 31 is connected to an inner wall of a middle portion of the torsion beam body 2 of the vehicle. The weight 32 is connected between the two elastic members 31, and the weight 32 is disposed inside the middle portion of the torsion beam assembly 1 and has a gap with the inner wall of the middle portion, so as to prevent the weight 32 from colliding with the inner wall of the torsion beam assembly 1. Wherein the weight 32 is selected to allow suppression of vibration of the torsion beam assembly 1 by its own vibration when its vibration frequency is equal to or close to the vibration frequency of the torsion beam assembly 1. Here, the fact that the vibration frequency of the weight 32 is close to the vibration frequency of the torsion beam assembly 1 means that the frequencies thereof are in a range substantially equal to each other. The elastic member 31 may be, for example, a rubber member. The elastic member 31 may be cured on the inner wall of the intermediate portion of the torsion beam assembly 1 through a vulcanization process. The weight 32 may be a metal block, for example. The mass of the counterweight 32 is typically 10-20% of the modal mass.
According to the utility model discloses a scheme is through setting up elastic component 31 in balancing weight 32 both sides, and makes elastic component 31 connect on the inner wall of torsion beam assembly 1's mid portion, from this balancing weight 32 can not with torsion beam assembly 1's mid portion direct contact, can avoid balancing weight 32 and torsion beam assembly 1's hard contact to reduce the road noise problem that torsion beam bending vibration arouses from the source. And, the elastic part 31 is solidified on the torsion beam assembly 1 through a vulcanization process, so that the conventional welding or bolt installation mode is broken, the fatigue of a welding seam or the fatigue of a hole opening position during bolt installation is avoided, the contradiction between the NVH requirement and the durability attribute is balanced, and various requirements of a project are met. In addition, only one dynamic vibration absorber 3 needs to be installed in the middle of the torsion beam assembly 1, and two or more dynamic vibration absorbers need not to be installed, so that the cost is lower compared with the prior art in which two dynamic vibration absorbers 3 need to be installed.
This balancing weight 32 passes through connecting piece 33 and is connected with elastic component 31, from this, is changing torsion beam assembly 1 or on different motorcycle types, when the balancing weight 32 of different masses is required, only need to change this balancing weight 32 can, and need not the structure of redesign dynamic vibration absorber 3 to reduce design cost, realized the commonality.
By installing the dynamic-vibration absorber 3 at the center of the power beam assembly, the weight required for the dynamic-vibration absorber 3 is the lightest. Therefore, on the basis of meeting the basic function of vibration absorption performance, the mass of the vibration absorption block is reduced, and the vibration amplitude of the torsion beam body 2 meets the target requirement.
Wherein, when the two elastic members 31 are connected with the inner wall of the middle portion of the torsion beam assembly 1, the edge area of each elastic member 31 is in contact with the inner wall of the middle portion having a circular cross section. In one embodiment, the connection member 33 is configured in a long bar shape and has a length set to be greater than a distance between the inner edges 315 of the two elastic members 31. In another embodiment, the length of the connecting member 33 is not only greater than the distance between the inner edges 315 of the two elastic members 31, but also less than or equal to the distance between the outer edges 316 of the two elastic members 31. Preferably, the length of the connection member 33 is equal to the distance between the outer edges 316 of the two elastic members 31, that is, the connection member 33 may extend from the outer edge 316 of one elastic member 31 to the outer edge 316 of the other elastic member 31. Here, the inner edge 315 of the elastic member 31 refers to an inner end surface of the elastic member 31, and a distance between the inner edges 315 of the two elastic members 31 refers to a perpendicular distance between the inner end surfaces of the two elastic members 31.
In the embodiment shown in fig. 2, the two elastic members 31 are a first elastic member 311 and a second elastic member 312, respectively, a first mounting hole 313 is formed at a central position of the first elastic member 311, and a second mounting hole 314 is formed at a central position of the second elastic member 312. The first mounting hole 313 and the second mounting hole 314 are both through holes, but in other embodiments, the first mounting hole 313 and the second mounting hole 314 may be blind holes. A through hole 321 is formed in the center of the weight 32. The coupling member 33 passes through the first mounting hole 313, the through hole 321, and the second mounting hole 314 in this order, or passes through the second mounting hole 314, the through hole 321, and the first mounting hole 313 in this order, thereby coupling the weight 32 between the two elastic members 31. The diameters of the first mounting hole 313 and the second mounting hole 314 are substantially equal, and the diameters of the first mounting hole 313 and the second mounting hole 314 are larger than the diameter of the through hole 321.
As shown in fig. 2, the dynamic vibration absorber 3 further includes two elastic sleeves 34, the two elastic sleeves 34 are respectively installed in the two elastic members 31, and the two elastic sleeves 34 are respectively sleeved on two ends of the connecting member 33. The two elastic sleeves 34 are respectively a first elastic sleeve 341 and a second elastic sleeve 342, the first elastic sleeve 341 is installed in the first installation hole 313 and is sleeved on one end of the connecting element 33, and the second elastic sleeve 342 is installed in the second installation hole 314 and is sleeved on the other end of the connecting element 33. In this embodiment, the first and second elastic sleeves 341 and 342 are cylindrical in shape and have a diameter substantially equal to the diameter of the first and second mounting holes 313 and 314, so that the weight 32 and the elastic sleeve 34 are compressed by the connecting member 33 to form an integral mass. The elastic sleeve 34 is, for example, tubular in shape, and the material thereof is, for example, rubber. Through setting up this elastic sleeve 34 to tightly press balancing weight 32 in elastic component 31, and make connecting piece 33 be difficult to rock in balancing weight 32, thereby avoid producing the abnormal sound because rocking of connecting piece 33.
In one embodiment, the outer surface of the weight 32 is covered with an elastic layer, which may be a rubber layer, for example, and the elastic layer covers the entire outer surface of the weight 32, so as to prevent the weight 32 from touching the inner wall of the torsion beam assembly 1 during the shaking process, which may occur, and thus generate abnormal sound.
In particular, the utility model also provides a vehicle, this vehicle includes aforementioned torsion beam assembly.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (8)
1. A dynamic vibration absorber is arranged in the middle of a torsion beam body and is characterized by comprising:
the two elastic pieces are arranged at intervals, are arranged in the torsion beam body and are connected with the inner wall of the torsion beam body;
and the balancing weight is connected between the two elastic pieces and is positioned in the torsion beam body, and a gap is formed between the balancing weight and the inner wall of the torsion beam body so as to inhibit the vibration of the torsion beam body through the vibration of the balancing weight when the vibration frequency of the balancing weight is equal to or close to the vibration frequency of the torsion beam body.
2. The dynamic vibration absorber according to claim 1 wherein said weight is connected to said elastic members by a connecting member, said connecting member being elongated and having a length set to be greater than the distance between said two elastic members.
3. The dynamic vibration absorber of claim 2 wherein the length of the connecting member is set to be less than or equal to the distance between the outer edges of the two elastic members.
4. The dynamic vibration absorber according to claim 3, wherein said connecting member is inserted into said weight member, and both ends of said connecting member extend out of said weight member in opposite directions and are connected to said two elastic members, respectively.
5. The dynamic vibration absorber of claim 4 further comprising:
and the two elastic external members are respectively arranged in the two elastic pieces, and the two elastic external members are respectively sleeved at two ends of the connecting piece.
6. The dynamic vibration absorber of any of claims 1-5 wherein an outer surface of said weight is coated with an elastic layer.
7. A torsion beam assembly comprising a torsion beam body and the dynamic vibration absorber according to any one of claims 1 to 6.
8. A vehicle comprising the torsion beam assembly of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021517670.8U CN212796441U (en) | 2020-07-28 | 2020-07-28 | Dynamic vibration absorber, torsion beam assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021517670.8U CN212796441U (en) | 2020-07-28 | 2020-07-28 | Dynamic vibration absorber, torsion beam assembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212796441U true CN212796441U (en) | 2021-03-26 |
Family
ID=75104865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021517670.8U Active CN212796441U (en) | 2020-07-28 | 2020-07-28 | Dynamic vibration absorber, torsion beam assembly and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212796441U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113386516A (en) * | 2021-07-14 | 2021-09-14 | 东风汽车集团股份有限公司 | Torsion beam for electric vehicle |
-
2020
- 2020-07-28 CN CN202021517670.8U patent/CN212796441U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113386516A (en) * | 2021-07-14 | 2021-09-14 | 东风汽车集团股份有限公司 | Torsion beam for electric vehicle |
| CN113386516B (en) * | 2021-07-14 | 2022-04-08 | 东风汽车集团股份有限公司 | Torsion beam for electric vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109501565A (en) | Suspending apparatus for driving motor and the electric vehicle including it | |
| CN212796441U (en) | Dynamic vibration absorber, torsion beam assembly and vehicle | |
| CN205381134U (en) | Engine mounting structure and car | |
| CN209191629U (en) | Rear shock absorber mounting structure and vehicle body and vehicle | |
| GB2534240A (en) | Bushing, in particular for a vehicle | |
| CN107891737B (en) | Suspension system and car | |
| KR20140127952A (en) | Insulator of suspension | |
| CN202251640U (en) | Novel air suspension | |
| KR102238046B1 (en) | Danymic damper assembly | |
| US20240010043A1 (en) | Suspension system for vehicle air conditioner compressor, and vehicle | |
| CN205185776U (en) | Car torsion beam rear axle | |
| CN113396071B (en) | Single suspension module | |
| CN210859634U (en) | Anti-torsion damping washer and anti-torsion damping washer assembly | |
| JP4543318B2 (en) | Dynamic damper | |
| JP3846688B2 (en) | Anti-vibration support device | |
| CN207291647U (en) | A kind of novel damping suspension | |
| CN209767299U (en) | Auxiliary support of suspension support and motor damping mechanism | |
| US10576813B2 (en) | Mounting bracket for a vehicle component and method of forming | |
| CN205273604U (en) | Turn to a steering system of oilcan assembly and car | |
| CN110701228A (en) | Anti-torsion damping washer and anti-torsion damping washer assembly | |
| CN220517963U (en) | Suspension connecting bracket, electric drive axle connecting structure, electric drive assembly and vehicle | |
| CN220168103U (en) | Damping device of automobile compressor and vehicle | |
| CN221113407U (en) | Torsion beam suspension and automobile | |
| WO2024070176A1 (en) | Damper rod mount | |
| KR20150068525A (en) | Hybrid Insulator Manufacturing Method and Suspension System therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |