Mounting bracket of dynamic vibration absorber

Abstract

The utility model provides a mounting bracket of a dynamic vibration absorber, which is used for vibration test of a vehicle, the dynamic vibration absorber comprises a mounting hole, the mounting bracket comprises a mounting seat, a first connecting piece and a second connecting piece, and the mounting seat is provided with a mounting surface which can be rigidly and detachably bonded with a to-be-tested part of the vehicle; the first connecting piece is fixedly connected with the mounting seat, and comprises a mounting rod which is matched with the mounting hole and can penetrate through the mounting hole to extend out; and the second connecting piece is detachably connected to the mounting rod and compresses and fixes the dynamic vibration absorber on the mounting bracket. According to the utility model, the technical problem that the process of replacing the dynamic vibration absorber in a real vehicle verification stage takes a long time can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, concretely relates to a mounting bracket of power vibration absorber. BACKGROUND

[0002] In order to make the parameter (such as mass, stiffness, damping, etc.) of power vibration absorber can be more accurate matching the specific vibration characteristics of vehicle, in the development process of vehicle, usually need to pass through real car verification, to ensure that the parameter optimization result of power vibration absorber can match the best damping effect.

[0003] In the prior art, in the real car verification stage, the same position needs to be detected by multiple power vibration absorbers of different frequencies, and in the installation process of each power vibration absorber, the power vibration absorber is usually directly bonded and connected to the vehicle body, when different frequency power vibration absorbers need to be verified, the original power vibration absorber needs to be removed from the vehicle body by destroying the bonding relationship, and then the new power vibration absorber is bonded to the vehicle body. Because the time spent in the process of replacing the power vibration absorber is longer by using this connection method, it will lead to the reduction of real car verification efficiency. SUMMARY

[0004] In view of the above problems existing in the prior art, the utility model provides a mounting bracket of power vibration absorber to improve the technical problem that the time spent in the process of replacing the power vibration absorber is longer in the real car verification stage.

[0005] To achieve the above object and other related purposes, the utility model provides a mounting bracket of power vibration absorber for the vibration test of vehicle, and the power vibration absorber includes a mounting hole, the mounting bracket includes: a mounting seat, a first connecting piece and a second connecting piece, the mounting seat has a mounting surface that can be hard detachably bonded with the part to be tested of vehicle;The first connecting piece is fixedly connected with the mounting seat, and the first connecting piece includes a mounting rod matched with the mounting hole and capable of extending through the mounting hole;The second connecting piece is detachably connected with the mounting rod and tightly fixes the power vibration absorber on the mounting bracket.

[0006] The beneficial effect of the arrangement is that by detachably connecting the second connecting piece to the mounting rod and tightly fixing the power absorber to the mounting rod, the arrangement can realize the dismounting of power absorbers of different frequencies on the mounting rod by dismounting the second connecting piece, and further realize the installation of power absorbers of different frequencies at the same to-be-tested position of the vehicle. Since the mounting seat does not need to be dismounted from the vehicle during the entire dismounting process, the mounting support can be installed once and used multiple times, so that the time spent in replacing the power absorber can be shortened, and thus the verification efficiency of the real vehicle verification can be improved. At the same time, compared with the connecting mode in which the power absorber is directly bonded to the vehicle, by arranging the mounting support, the pollution of the adhesive to the outer surface of the power absorber can be avoided, and thus the aesthetic appearance of the power absorber can be ensured. In addition, since the size of the mounting surface is not limited by the structure of the power absorber itself, the design of the mounting surface is more flexible, which is beneficial to ensuring the firmness and stability of the adhesive connection between the mounting support and the vehicle, and thus the stability of the connection between the power absorber and the vehicle body can be ensured.

[0007] In an embodiment of the present application, the mounting rod comprises a matching section and a threaded section connected to each other, the matching section is arranged between the mounting seat and the threaded section and is matched with the mounting hole, the height of the matching section is less than or equal to the height of the mounting hole, and the second connecting piece is threadedly connected to the threaded section.

[0008] The beneficial effect of the arrangement is that by arranging the matching section on the mounting rod, the matching precision between the mounting rod and the mounting hole can be conveniently improved, which is beneficial to reducing the radial gap between the mounting rod and the mounting hole, and thus the connection stiffness between the power absorber and the mounting support can be improved, thereby facilitating the improvement of the accuracy of the power absorber test effect. In addition, since the matching section is arranged, the machining length of the threads on the first connecting piece can be reduced, which is beneficial to improving the overall strength and stiffness of the first connecting piece. At the same time, by threadedly connecting the second connecting piece to the threaded section, the connection mode is simple in structure and low in manufacturing cost. At the same time, by adjusting the threadedly connected position of the second connecting piece relative to the mounting rod, the axial tightness of power absorbers of different heights can be realized, and thus the height size range of the applicable power absorbers is wider.

[0009] In an embodiment of the present application, the matching section comprises a plurality of mutually connected optical axis sections, the diameters of the plurality of optical axis sections decrease in turn in the direction from the mounting seat to the threaded section, one optical axis section is matched with one specification of mounting hole, and the height of the matching section is less than or equal to the height of the mounting hole of the smallest height specification.

[0010] The beneficial effects of the arrangement are that by arranging multiple optical axis segments and matching one optical axis segment with one diameter series of mounting holes, the diameter series of the power absorber that can be mounted on the mounting bracket is expanded, and the radial matching relationship between the power absorber of each diameter series and the mounting rod can be ensured, thereby ensuring the accuracy of the test results of the power absorber under multiple diameter series.

[0011] In an embodiment of the present application, the second connecting piece is a hexagonal nut or a butterfly nut.

[0012] The beneficial effects of the arrangement are that the second connecting piece is arranged as a hexagonal nut, which can facilitate the procurement of the second connecting piece and reduce the procurement cost. Meanwhile, since there are many types of nuts, different types of nuts can be selected according to the size requirements of the installation space to realize manual installation or electric installation, thereby reducing the limitation on the installation space.

[0013] In an embodiment of the present application, the mounting rod further comprises a boss segment, the boss segment extends towards the radial outside of the matching segment, and the mounting seat is connected with the matching segment through the boss segment.

[0014] The beneficial effects of the arrangement are that by arranging the boss segment, on the one hand, the end surface of the power absorber mounted on the mounting rod can be axially positioned, and the stability of the axial installation of the power absorber is improved. On the other hand, the stress concentration phenomenon at the connection position of the mounting seat and the first connecting piece can be improved, and the connection stiffness and strength between the first connecting piece and the mounting seat are improved.

[0015] In an embodiment of the present application, the length of the mounting rod is 80-110 mm, the length of the matching segment is 60-90 mm, and the diameter of the matching segment is 7-8 mm.

[0016] The beneficial effects of the arrangement are that by limiting the length of the mounting rod to 80-110 mm, the length of the mounting rod can match most conventional power absorbers, and the size of the mounting rod is not too long, which is beneficial to reduce the installation space. By limiting the length of the threaded segment to 60-90 mm, the installation position requirements of power absorbers of different height sizes can be met, and the effective length of the threaded connection between the second connecting piece and the first connecting piece can be ensured to ensure the stable and reliable connection between the second connecting piece and the first connecting piece. By limiting the diameter of the optical axis segment to 7-8 mm, the radial displacement of the power absorber on the optical axis segment during the test can be ensured, and the power absorber can be smoothly detached from the optical axis segment during the disassembly process.

[0017] In an embodiment of the utility model, the mounting seat is a conical structure, one end of the conical structure with a larger diameter forms a mounting surface, and the other end of the conical structure with a smaller diameter is connected with the mounting rod.

[0018] The beneficial effects of such an arrangement are as follows: by arranging the mounting seat as a conical structure, the support strength and support rigidity of the overall structure of the mounting seat can be improved, and a larger mounting surface area can be formed on the mounting seat, which is conducive to forming a higher bonding strength when the mounting seat is connected with the vehicle body. At the same time, the arrangement of the conical structure allows the mounting seat to form a smooth transition in the height direction, thereby reducing the stress concentration phenomenon caused by sudden changes in cross section.

[0019] In an embodiment of the utility model, the diameter of the mounting surface is 25-35 mm.

[0020] The beneficial effects of such an arrangement are as follows: by limiting the diameter of the mounting surface to 25-35 mm, this size range can meet the contact area requirements between the mounting surface and most vehicle chassis components, and can also meet the bonding strength requirements between the mounting bracket of the power absorber and the vehicle chassis components.

[0021] In an embodiment of the utility model, a clamping portion matched with the tool bit of the dismounting tool is arranged on the mounting seat, and the clamping portion includes a clamping groove or a protrusion.

[0022] The beneficial effects of such an arrangement are as follows: by arranging the clamping portion on the mounting seat, the dismounting tool can form a force point on the mounting seat, thereby reducing the probability of slippage of the dismounting tool relative to the mounting seat when the dismounting tool is under stress, and thus the force transmission effect of the dismounting tool on the mounting seat can be enhanced, and the bonding relationship of the mounting surface relative to the vehicle body can be more easily broken under the same knocking force, thereby facilitating the dismounting of the mounting bracket of the power absorber.

[0023] In an embodiment of the utility model, the mounting bracket of the power absorber is made of aluminum alloy.

[0024] The beneficial effects of such an arrangement are as follows: since aluminum alloy has the characteristics of low density, high strength, and corrosion resistance, arranging the mounting bracket of the power absorber to be made of aluminum alloy can not only improve the support rigidity of the mounting bracket of the power absorber, but also prolong the service life of the mounting bracket of the power absorber. At the same time, it is also conducive to realizing the lightweight design of the mounting bracket of the power absorber. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other embodiments can also be obtained from these drawings without creative labor.

[0026] Figure 1 The overall structure schematic diagram of the mounting bracket of the dynamic vibration absorber in an embodiment;

[0027] Figure 2 The mounting process schematic diagram of the mounting bracket of the dynamic vibration absorber and the dynamic vibration absorber in an embodiment of the present application;

[0028] Figure 3 The structure schematic diagram of the mounting bracket of the dynamic vibration absorber in an embodiment of the present application, and the dynamic vibration absorber is fixedly installed on the mounting bracket;

[0029] Figure 4 The overall structure schematic diagram of the mounting bracket of the dynamic vibration absorber in another embodiment.

[0030] Element number explanation:

[0031] 100, mounting bracket; 110, mounting seat; 111, mounting surface; 112, clamping part; 1121, clamping groove; 120, first connecting piece; 121, mounting rod; 1211, matching section; 12111, optical axis section; 1212, threaded section; 1213, boss section; 130, second connecting piece; 200, dynamic vibration absorber; 201, mounting hole. DETAILED DESCRIPTION

[0032] The embodiments of the present application will be described below through specific concrete examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present specification. The present application can also be implemented or applied through other different concrete embodiments, and each detail in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present application are for describing specific concrete embodiments, and are not intended to limit the protection scope of the present application. The test methods not specified in the following embodiments are usually performed under conventional conditions or under conditions recommended by each manufacturer.

[0033] When the embodiments give a numerical range, it should be understood that, unless the present application indicates otherwise, both ends of each numerical range and any number between the two ends can be selected. Unless otherwise defined, all technical and scientific terms used in the present application are used in the same manner as those skilled in the art of the present application and the present application, and any method, equipment and material of the prior art similar or equivalent to the method, equipment and material of the present application can be used to realize the present application.

[0034] It should be understood that the terms such as "up", "down", "left", "right", "middle" and "one" in the specification are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship is also considered as the scope of the present application without substantial change of the technical content.

[0035] In the prior art, during the real vehicle verification stage of the vehicle, the automobile engineer mainly uses the following two ways to install the power absorber on the vehicle body. The first way is to directly bond the power absorber to the body of the vehicle part. The second way is to bond a mass block at one end of the power absorber to increase the bonding contact area, and then bond the power absorber with the mass block to the body of the vehicle part after cooling.

[0036] Both of the above two installation methods have certain defects. First, the first method: 1. Since the contact area of the power absorber is relatively small, it is not easy to bond directly to the body of the vehicle part, and a relatively thick AB glue needs to be applied, otherwise it is easy to fall off, and there is a problem of inconvenient installation; 2. The use of a large amount of AB glue is easy to cause the AB glue to overflow onto the rubber part of the power absorber, affecting the appearance of the power absorber; 3. When the power absorber is installed at the position of the subframe, swing arm and other chassis parts, it needs to be held up to install the absorber until the AB glue is dry. Since the absorber is easy to shake during the drying process of the AB glue, the installation fails, and the efficiency is low and the installation is inconvenient; 4. It cannot effectively support repeated verification. Engineering verification needs to verify the scheme many times, so it needs to repeatedly install and disassemble the power absorber of different frequencies, which further increases the uncertainty of the effect of the power absorber. Furthermore, the second method: 1. The amount of AB glue used is large. Since an additional mass block is added, two coats of AB glue are needed, increasing the amount of consumables used; 2. The same problem of low installation efficiency and ineffective support for repeated verification exists. Based on this, the inventor proposes an installation bracket for a power absorber to improve the above technical problems.

[0037] Please refer to Figures 1 to 4The mounting bracket 100 provided by the utility model can realize the dismounting of the power vibration absorber 200 of different frequencies on the mounting rod 121 through the dismounting of the second connecting piece 130 after the mounting base 110 is fixed on the vehicle, and then the mounting of the power vibration absorber 200 of different frequencies at the same position to be tested of the vehicle is realized. Since the mounting base 110 does not need to be dismounted from the vehicle during the whole dismounting process, the mounting bracket 100 can be mounted once and used repeatedly, so the time spent in the process of replacing the power vibration absorber 200 can be shortened, and therefore the verification efficiency of the real vehicle verification can be improved.

[0038] Please refer to Figure 1 and Figure 2 The mounting bracket 100 of the power vibration absorber 200 is used for the vibration test of the vehicle, and the power vibration absorber 200 comprises a mounting hole 201. The mounting bracket 100 comprises a mounting base 110, a first connecting piece 120 and a second connecting piece 130. The mounting base 110 has a mounting surface 111 which is hard and detachably bonded with the part to be tested of the vehicle. The part to be tested of the vehicle can be any part on the vehicle which needs to be tested, such as a subframe, a tailgate, a roof and the like. The mounting base 110 can be a cylindrical structure, a cuboid structure or a multi-rib structure, and correspondingly, the shape and area size of the mounting surface 111 are not limited, for example, the mounting surface 111 can be a circular structure, a rectangular structure, a polygonal structure and the like, and in the actual design process, the bonding strength and hardness connection requirements of the mounting bracket 100 are taken as the criterion.

[0039] The first connecting piece 120 is fixedly connected with the mounting base 110. The first connecting piece 120 and the mounting base 110 can be fixedly connected by welding, or can be fixedly connected by being integrally casted, etc. The first connecting piece 120 comprises a mounting rod 121 which is matched with the mounting hole 201 of the vibration absorber 200 and can extend out through the mounting hole 201. The second connecting piece 130 is detachably connected with the first connecting piece 120 and tightly fixes the vibration absorber 200 on the mounting rod 121. The second connecting piece 130 can be detachably connected with the first connecting piece 120 and tightly fix the vibration absorber 200 on the mounting rod 121 in various ways. In an embodiment, the mounting rod 121 can be a screw rod structure, the vibration absorber 200 is arranged on the mounting rod 121, the second connecting piece 130 is a nut structure, the second connecting piece 130 is screwed on the mounting rod 121, thereby tightly pressing the vibration absorber 200 in the axial direction and fixing the vibration absorber 200 on the mounting rod 121. In another embodiment, the mounting rod 121 can also be a light shaft structure, the vibration absorber 200 is sleeved on the mounting rod 121, the mounting rod 121 is provided with an annular clamping groove, and the second connecting piece 130 is a shaft retaining ring which is clamped in the clamping groove to axially position and tightly press the vibration absorber 200, thereby fixing the vibration absorber 200 on the mounting rod 121.

[0040] By detachably connecting the second connecting piece 130 with the mounting rod 121 and tightly fixing the vibration absorber 200 on the mounting rod 121, the vibration absorber 200 of different frequencies can be disassembled and assembled on the mounting rod 121 by disassembling and assembling the second connecting piece 130, thereby realizing the installation of the vibration absorber 200 of different frequencies at the same position to be tested of the vehicle. Since the mounting base 110 does not need to be disassembled from the vehicle during the whole disassembly and assembly process, the mounting bracket 100 can be installed once and used multiple times, so that the time spent in replacing the vibration absorber 200 can be shortened, thereby improving the verification efficiency of the real vehicle verification. Meanwhile, compared with the connection mode in which the vibration absorber 200 is directly bonded to the vehicle, by providing the mounting bracket, the external surface of the vibration absorber 200 can be prevented from being polluted by the adhesive, thereby ensuring the aesthetic appearance of the vibration absorber 200. In addition, since the size of the mounting surface 111 is not limited by the structure of the vibration absorber 200 itself, the design of the mounting surface 111 is more flexible, which is conducive to ensuring the firmness and stability of the adhesive connection between the mounting bracket 100 and the vehicle, thereby ensuring the stability of the connection between the vibration absorber 200 and the vehicle body.

[0041] In order to improve the connection stiffness between the vibration absorber 200 and the mounting bracket 100, optionally, please refer to Figure 2And Figure 3 In an embodiment of the present application, the mounting rod 121 comprises a matching section 1211 and a threaded section 1212 connected with each other, the matching section 1211 is matched with the mounting hole 201, that is, the matching section 1211 has a matching surface matched with the inner wall of the mounting hole 201, the matching surface can be a whole cylindrical surface structure matched with the inner wall of the mounting hole 201, or can be a plurality of arc surface structures arranged around the inner wall of the mounting hole 201. The matching section 1211 is arranged between the mounting seat 110 and the threaded section 1212, that is, the two ends of the matching section 1211 are connected with the mounting seat 110 and the threaded section 1212 respectively, and the second connecting piece 130 is threadedly connected to the threaded section 1212. The second connecting piece 130 can be a conventional hexagonal nut, a butterfly nut, etc., or can be any structure with internal threads that can form a threaded connection with the first connecting piece 120. In order to ensure the pressing effect of the second connecting piece 130 on the power absorber 200, the height of the matching section 1211 is less than or equal to the height of the mounting hole 201. It should be noted that the sizes of the mounting holes 201 of power absorbers 200 of different frequencies can be the same. For the convenience of description, the power absorber 200 corresponding to the mounting hole 201 with the same diameter is defined as one diameter series. The matching section 1211 in this embodiment is suitable for a plurality of power absorbers 200 under the same diameter series, that is, the same mounting bracket 100 can correspond to a plurality of power absorbers 200 of different frequencies under the same diameter series.

[0042] By arranging the matching section 1211 on the mounting rod 121, the matching precision between the mounting rod 121 and the mounting hole 201 can be easily improved, which is beneficial to reduce the radial gap between the mounting rod 121 and the mounting hole 201, and thus the connection stiffness between the power absorber 200 and the mounting bracket 100 can be improved, thereby facilitating to improve the precision of the test effect of the power absorber 200. In addition, due to the arrangement of the matching section 1211, the machining length of the thread on the first connecting piece 120 can be reduced, which is beneficial to improve the overall strength and stiffness of the first connecting piece 120. At the same time, by threadedly connecting the second connecting piece 130 to the threaded section 1212, the connection mode is simple in structure and low in manufacturing cost. At the same time, by adjusting the threaded connection position of the second connecting piece 130 relative to the mounting rod 121, the axial pressing of the power absorber 200 of different heights can be realized, so the height size range of the power absorber 200 that can be applied is wider.

[0043] In order to improve the application range of the mounting bracket 100, optionally, refer to Figure 4In an embodiment of the present application, the matching section 1211 comprises a plurality of mutually connected optical axis sections 12111, and the diameters of the plurality of optical axis sections 12111 gradually decrease from the direction of the mounting base 110 to the threaded section 1212, one optical axis section 12111 is matched with one diameter series of mounting holes 201, the height of the matching section 1211 is less than or equal to the height of the mounting hole 201 with the smallest height, that is, the sum of the heights of the plurality of optical axis sections 12111 is less than or equal to the height of the mounting hole 201 with the smallest height, and such arrangement can ensure that the second connecting piece 130 can axially compress the power absorber 200 with each height. By arranging a plurality of optical axis sections 12111 and matching one optical axis section 12111 with one diameter series of mounting holes 201, the diameter series of the power absorber 200 that can be installed on the mounting bracket 100 can be expanded, and it can be ensured that the power absorber 200 with each diameter series can form a radial matching relationship with the mounting rod 121, thereby ensuring the accuracy of the test results of the power absorber with multiple diameter series.

[0044] Optionally, referring to Figure 2 In an embodiment of the present application, the second connecting piece 130 is a hexagonal nut. The hexagonal nut can be a common outer hexagonal nut, a flange nut cylindrical head inner hexagonal nut, etc. Since the flange nut can increase the contact area between the nut and the compressed workpiece, the compression effect is improved. Optionally, in this embodiment, the hexagonal nut is a flange nut. Since the hexagonal nut is a conventional standard part, the second connecting piece 130 is arranged as a hexagonal nut, which can facilitate the procurement of the second connecting piece 130 and has a relatively low procurement cost. At the same time, since the hexagonal nut can be installed and removed by using an electric wrench, the disassembly efficiency of the second connecting piece 130 can be improved by using an electric wrench under the condition that the installation operation space is allowed, thereby improving the disassembly efficiency between the power absorber 200 and the mounting bracket 100.

[0045] Optionally, in an embodiment of the present application, the second connecting piece 130 is a butterfly nut. The butterfly nut is also a conventional standard part, so the second connecting piece 130 is arranged as a butterfly nut, which can also facilitate the procurement of the second connecting piece 130 and has a relatively low procurement cost. At the same time, since the butterfly nut can be manually screwed, the second connecting piece 130 can be manually screwed to realize the disassembly between the second connecting piece 130 and the first connecting piece 120 under the condition that the operation space is limited and an electric wrench cannot be used, thereby facilitating the disassembly of the power absorber 200 on the mounting bracket 100 in a narrow space.

[0046] Optionally, referring to Figure 1 and Figure 3In an embodiment of the utility model, mounting rod 121 still includes boss section 1213, boss section 1213 extends towards the radial outside of cooperation section 1211, and mounting base 110 is connected with cooperation section 1211 through boss section 1213. Boss section 1213 can be cylindrical boss, cuboid boss, multi-prism boss and the like. Alternatively, in the embodiment, boss section 1213 is cylindrical boss structure arranged coaxially with cooperation section 1211. One end of boss section 1213 in height direction is connected with the side of mounting base 110 away from mounting surface 111, and the other end of boss section 1213 in height direction is connected with the end of cooperation section 1211 away from threaded section 1212. The height dimension of boss section 1213 is any value within the range of 1.5~2.0mm, for example, can be 1.5mm, 1.75mm or 2.0mm and the like. By arranging boss section 1213, on the one hand, axial positioning of the end surface of power absorber 200 mounted on mounting rod 121 can be formed, and the stability of axial installation of power absorber 200 is improved. On the other hand, stress concentration phenomenon at the connecting position of mounting base 110 and mounting rod 121 can also be improved, and the connecting rigidity and connecting strength between first connecting piece 120 and mounting base 110 are improved.

[0047] In order to improve the versatility of mounting bracket 100, alternatively, refer to Figure 1 and Figure 3 In an embodiment of the utility model, the length of mounting rod 121 is 80~110mm, for example, can be 80mm, 900mm, 100mm or 110mm and the like. The length of threaded section 1212 is 60~90mm, for example, can be 60mm, 70mm, 80mm or 90mm and the like. The diameter of cooperation section 1211 is 7~8mm, for example, can be 7mm, 7.5mm or 8mm and the like. By limiting the length of mounting rod 121 within 80~110mm, the length of mounting rod 121 can match most conventional power absorbers 200, and the length of mounting rod 121 will not be too long, which is beneficial to reduce the installation space. By limiting the length of threaded section 1212 within 60~90mm, not only the installation position requirement of power absorber 200 with different height dimensions can be met, but also the effective length of threaded connection between second connecting piece 130 and first connecting piece 120 can be ensured, so that the connection between second connecting piece 130 and first connecting piece 120 is stable and reliable. By limiting the diameter of cooperation section 1211 within 7~8mm, it can be ensured that power absorber 200 will not produce large radial displacement on cooperation section 1211 during the test process, and power absorber 200 can smoothly come off from cooperation section 1211 during the dismounting process.

[0048] Refer to Figure 1In an embodiment of the present application, the mounting seat 110 is a conical structure, the end of the conical structure with larger diameter forms a mounting surface 111, and the end of the conical structure with smaller diameter is connected with the mounting rod 121. The conical structure and the mounting rod 121 can be coaxially arranged or arranged in different axes. Preferably, in order to facilitate the positioning and machining between the mounting seat 110 and the mounting rod 121, the mounting seat 110 and the mounting rod 121 are coaxially arranged in the embodiment. The conical structure can be a solid structure or a hollow structure. Correspondingly, the mounting surface 111 can be a circular surface or a circular ring surface, etc. Alternatively, in the embodiment, the conical structure is a solid structure, and the mounting surface 111 is a circular surface. The solid structure can improve the strength and rigidity of the mounting seat 110, reduce the probability of deformation of the mounting surface 111 in the repeated disassembly and assembly process, and thus facilitate the mounting surface 111 to maintain good flatness, so as to ensure the stable and reliable bonding connection between the mounting seat 110 and the vehicle body.

[0049] In the embodiment, the mounting seat 110 is arranged as a conical structure, which can not only improve the support strength and rigidity of the overall structure of the mounting seat 110, but also form a larger mounting surface 111 area on the mounting seat 110, and thus facilitate the mounting seat 110 to form a higher bonding strength when connected with the vehicle body. At the same time, the conical structure can form a smooth transition in the height direction, so as to reduce the stress concentration phenomenon caused by the sudden change of cross section.

[0050] Although the size of the mounting surface 111 is not specifically limited under the condition of meeting the bonding connection strength between the mounting seat 110 and the vehicle body, but alternatively, please refer to Figure 1 In an embodiment of the present application, the diameter of the mounting surface 111 is any value within the range of 25-35 mm, for example, it can be 25 mm, 30 mm or 35 mm, etc. The size range can not only meet the contact area requirement between the mounting surface 111 and most vehicle chassis parts, but also meet the bonding strength requirement between the mounting bracket 100 and the vehicle chassis parts.

[0051] It should be noted that when the diameter of the mounting surface 111 is 25-35 mm, the structure of the mounting seat 110 can be a cylindrical structure, a frustum structure, etc. Specifically, in the present embodiment, the structure of the mounting seat 110 is a frustum structure. For the convenience of description, the end with a larger diameter of the frustum structure is defined as the large end of the frustum structure, and the end with a smaller diameter of the frustum structure is defined as the small end of the frustum structure. The diameter of the large end of the frustum structure is 25-35 mm, for example, which can be 25 mm, 30 mm, or 35 mm, etc. In this way, the diameter of the mounting surface 111 can be ensured to be between 25-35 mm. The diameter of the small end of the frustum structure is 8-12 mm, which can adapt to the size of most conventional mounting holes 201, and ensure the stability of the axial positioning of the dynamic vibration absorber 200.

[0052] Since the mounting bracket 100 is hard detachable bonded with the part to be tested of the vehicle, the connection strength is strong. In the dismounting process, knocking force in different directions needs to be applied to the mounting seat 110 to make the mounting surface 111 displace relative to the part to be tested of the vehicle to break the bonding relationship and realize the dismounting of the mounting bracket 100. In order to facilitate the dismounting of the mounting bracket 100, optionally, please refer to Figure 1 In an embodiment of the present application, the mounting seat 110 is provided with a clamping portion 112, which is matched with the tool bit of the dismounting tool, that is, the tool bit of the dismounting tool can be at least partially clamped with the clamping portion 112 to form clamping positioning with the mounting seat 110. The clamping portion 112 can be arranged on any outer wall of the mounting seat 110, such as the side wall of the mounting seat 110, the top wall of the mounting seat 110, etc. The clamping portion 112 can be one or multiple. Specifically, in the present embodiment, the mounting seat 110 is a frustum structure, the clamping portion 112 is arranged on the side wall of the frustum structure, and the clamping portion 112 is multiple, which are arranged around the rotation axis of the frustum structure. In this way, the operator can dismount the mounting bracket 100 in different directions.

[0053] In an embodiment, please refer to Figure 1The clamping portion 112 comprises a clamping groove 1121, which is shaped to match the shape of the bit of the dismounting tool, so that the bit of the dismounting tool can be at least partially inserted into the clamping groove 1121 to form a clamping connection. The clamping groove 1121 can be a counterbore, a long slot, or the like. Optionally, in the embodiment, the clamping groove 1121 is a rectangular slot, which has a length of 10 mm, a width of 5 mm, and a depth of 2 mm. In this way, the size of the clamping groove 1121 can match the conventional dismounting tool (such as a screwdriver, a chisel, or the like). In other embodiments, the clamping portion 112 comprises a protrusion, which can be a hexagonal protrusion, a hemispherical protrusion, a cylindrical protrusion, or the like. The bit of the dismounting tool can be an internal hexagonal sleeve structure, a cylindrical sleeve structure, or the like, and the shape of the protrusion matches the shape of the bit of the dismounting tool, so that the bit of the dismounting tool is at least partially sleeved on the protrusion to form a clamping connection. By providing the clamping portion 112 on the mounting seat 110, the dismounting tool can form a force point on the mounting seat 110, and thus the probability of the dismounting tool slipping relative to the mounting seat 110 when the dismounting tool is stressed can be reduced, so that the force transmission effect of the dismounting tool on the mounting seat 110 can be enhanced, and the adhesion of the mounting surface 111 to the vehicle body can be more easily broken under the same knocking force, thereby facilitating the dismounting of the mounting bracket 100.

[0054] In order to meet the requirements of support strength and support stiffness, the material of the mounting bracket 100 can be steel, aluminum, or other rigid materials, but preferably, referring to Figure 1 In an embodiment of the utility model, the mounting bracket 100 is made of aluminum alloy, that is, the mounting seat 110, the first connecting piece 120, and the second connecting piece 130 are all made of aluminum alloy. Specifically, the mounting seat 110 and the first connecting piece 120 can be cast into shape by aluminum alloy or processed into shape by aluminum alloy. Optionally, in the embodiment, the mounting seat 110 and the first connecting piece 120 are integrally processed by a machine tool. Since aluminum alloy has the characteristics of low density, high strength, and corrosion resistance, the mounting bracket 100 is made of aluminum alloy, which not only improves the support stiffness of the mounting bracket 100, but also prolongs the service life of the mounting bracket 100. At the same time, it is also conducive to realizing the lightweight design of the mounting bracket 100.

[0055] By detachable connecting the second connecting piece to the mounting rod and tightly fixing the power absorber on the mounting rod, the mounting bracket can be installed once and used repeatedly, so the time spent in replacing the power absorber can be shortened, and the verification efficiency of the real vehicle verification can be improved.

[0056] The above embodiment only illustrates the principle and effect of the utility model, and is not used for limiting the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A mounting bracket (100) of a dynamic vibration absorber (200) for a vibration test of a vehicle, the dynamic vibration absorber (200) comprising a mounting hole (201), characterized in that, The mounting bracket (100) comprises: a mounting base (110) having a mounting surface (111) hard detachable bonded with a part of a vehicle to be tested; a first connecting member (120) fixedly connected with the mounting base (110), the first connecting member (120) comprising a mounting rod (121) matched with the mounting hole (201) and capable of extending through the mounting hole (201); a second connecting member (130) detachably connected with the mounting rod (121) and capable of tightly fixing the power absorber (200) on the mounting rod (121).

2. The mounting bracket (100) according to claim 1, characterized in that The mounting rod (121) comprises a matching section (1211) and a threaded section (1212) connected with each other, the matching section (1211) is arranged between the mounting base (110) and the threaded section (1212) and is matched with the mounting hole (201), the height of the matching section (1211) is less than or equal to the height of the mounting hole (201), and the second connecting member (130) is threadedly connected with the threaded section (1212).

3. The mounting bracket (100) according to claim 2, characterized in that The matching section (1211) comprises a plurality of optical axis sections (12111) connected with each other, and the diameters of the optical axis sections (12111) gradually decrease from the mounting base (110) to the threaded section (1212), one optical axis section (12111) is matched with one diameter series of the mounting hole (201), and the height of the matching section (1211) is less than or equal to the height of the mounting hole (201) with the smallest height.

4. The mounting bracket (100) according to claim 2, characterized in that The second connecting member (130) is a hexagonal nut or a butterfly nut.

5. The mounting bracket (100) of claim 2, wherein, The mounting rod (121) further comprises a boss section (1213) extending towards the radial outside of the matching section (1211), and the mounting base (110) is connected with the matching section (1211) through the boss section (1213).

6. The mounting bracket (100) of claim 2, wherein The length of the mounting rod (121) is 80-110 mm, the length of the matching section (1211) is 60-90 mm, and the diameter of the matching section (1211) is 7-8 mm.

7. The mounting bracket (100) of claim 1, wherein The mounting base (110) is a frustum structure, one end of the frustum structure with a larger diameter forms the mounting surface (111), and the other end of the frustum structure with a smaller diameter is connected with the mounting rod (121).

8. The mounting bracket (100) according to claim 7, characterized in that The diameter of the mounting surface (111) is 25-35 mm.

9. The mounting bracket (100) of claim 1, wherein, The mounting base (110) is provided with a clamping part (112) matched with a tool bit of a dismounting tool, and the clamping part (112) comprises a clamping groove (1121) or a protrusion.

10. The mounting bracket (100) according to any one of claims 1 to 9, characterized in that The mounting bracket (100) of the power absorber (200) is made of aluminum alloy.

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