Bushing assembly and commissioning device

Through the design of the bushing assembly, the combination of outer pipe, inner pipe and structural components is used to adjust the stiffness and curve by inserting inserts, the problems of low efficiency and high cost of bushing debugging in the prior art are solved, and efficient and low-cost debugging effect is achieved.

CN223076026UActive Publication Date: 2025-07-08XIAOMI EV TECH CO LTD
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Patent Information

Application Number
CN202422379429.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-27
Publication Date
2025-07-08
Estimated Expiration
2034-09-27

AI Technical Summary

Technical Problem

In the prior art, bushing debugging has problems such as low debugging efficiency, high working strength and high cost.

Method used

A bushing assembly is adopted, which consists of an outer tube, an inner tube and a structural component, which is elastic and has multiple slots, and the stiffness and curve are adjusted by inserting different inserts, simplifying the debugging process.

Benefits of technology

It improves debugging efficiency, reduces working intensity and cost, meets a variety of rigidity and curve debugging needs, and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bushing assembly and debugging device, the bushing assembly comprises an outer pipe, an inner pipe and a structural component, the inner pipe is assembled in the outer pipe, an annular space is formed between the outer pipe and the inner pipe, the structural component is arranged in the annular space and is connected with the outer pipe and the inner pipe, and the outer pipe is connected with the inner pipe. At least part of the structural components are elastic, the structural components are provided with a plurality of inserting grooves, and the inserting grooves are used for inserting inserts for adjusting the performance of the bush assembly. The bushing assembly is high in debugging efficiency of rigidity, curves and the like, low in working intensity, simple to operate and low in debugging cost.
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Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular, to a bushing assembly and a debugging device. Background Art

[0002] At present, in order to ensure the overall vehicle performance of an automobile, it is necessary to repeatedly debug the stiffness, curve, etc. of the bushing through a special debugging tool before the automobile is produced. However, in the prior art, there are problems such as low debugging efficiency, high working intensity, and high cost for the debugging of the bushing. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related art to a certain extent.

[0004] To this end, an embodiment of the utility model provides a bushing assembly, which has high debugging efficiency, low working intensity, simple operation, and low debugging cost for the debugging of stiffness, curve, etc.

[0005] An embodiment of the utility model further provides a debugging device including the above bushing assembly.

[0006] The bushing assembly of the embodiment of the utility model includes:

[0007] An outer tube and an inner tube, the inner tube is assembled in the outer tube, and an annular space is formed between the outer tube and the inner tube;

[0008] A structural component, the structural component is disposed in the annular space and is connected to both the outer tube and the inner tube. At least part of the structural component has elasticity, and the structural component is provided with a plurality of slots for inserting inserts for adjusting the performance of the bushing assembly.

[0009] In some embodiments, the structural component has end faces oppositely arranged in the axial direction of the bushing assembly, and the notch of each slot is disposed on the end face.

[0010] In some embodiments, the depth direction of the slot is consistent with the axial direction of the bushing assembly.

[0011] In some embodiments, slots are provided on both end faces of the structural component.

[0012] In some embodiments, the structural component or the structural component assembled with the insert is centrosymmetric about the axis of the bushing assembly.

[0013] In some embodiments, at least part of the slots are arranged at circumferential intervals along the structural member to form a slot group, and the slot group is provided with one or at least two, and at least two of the slot groups are arranged at intervals in the radial direction of the structural member.

[0014] In some embodiments, the structural member includes:

[0015] A plug-in member, the plug-in member is tubular and is arranged in the annular space, and the plug-in member is located between two adjacent slot groups in the radial direction of the structural member;

[0016] A connecting member, the connecting member has elasticity, the connecting member is provided between the inner tube and the plug-in member and between the plug-in member and the outer tube, the connecting member connects the inner tube, the plug-in member, and the outer tube, and a plurality of the slots are arranged on the connecting member.

[0017] In some embodiments, the connecting member has multiple types, and the hardnesses of the multiple types of connecting members are different, and the bushing assembly matches one of the types of connecting members.

[0018] In some embodiments, the connecting member is divided into a first section, a second section, and a third section in the axial direction of the bushing assembly, the second section is located between the first section and the third section, and a plurality of the slots are arranged on the first section and the third section.

[0019] In some embodiments, the connecting member includes:

[0020] A first tube, the first tube is sleeved on the outer peripheral side of the inner tube and is connected to the inner tube;

[0021] A second tube, the second tube is sleeved on the outer peripheral side of the first tube, and the plug-in member is embedded in the second tube;

[0022] A third tube, the third tube is sleeved on the outer peripheral side of the second tube and is connected to the outer tube;

[0023] A first connecting portion and a second connecting portion, the first connecting portion is connected between the first tube and the second tube, the second connecting portion is connected between the second tube and the third tube, and a plurality of the slots are arranged on at least one of the first connecting portion and the second connecting portion.

[0024] In some embodiments, including the insert, at least part of the slots are assembled with the insert.

[0025] The debugging device of the embodiment of the present invention includes the bushing assembly as described in any of the above embodiments.

[0026] In some embodiments, it includes:

[0027] A frame and a fastener, wherein the frame is provided with an assembly groove, and the fastener passes through the assembly groove;

[0028] A control arm, which is arranged in the assembly groove and sleeved on the outer peripheral side of the fastener, and the bushing assembly is assembled between the fastener and the control arm.

[0029] Advantageous effects: The bushing assembly and the debugging device of the embodiment of the present utility model have high debugging efficiency, low working intensity, simple operation and low debugging cost for stiffness, curve, etc. Description of the Drawings

[0030] Figure 1 is the overall structural schematic diagram of the bushing assembly of the embodiment of the present utility model.

[0031] Figure 2 is the exploded schematic diagram of the bushing assembly of the embodiment of the present utility model.

[0032] Figure 3 is the three-dimensional schematic diagram of the connecting piece of the embodiment of the present utility model.

[0033] Figure 4 is the schematic diagram of the end face of the connecting piece of the embodiment of the present utility model.

[0034] Figure 5 is Figure 4 the cross-sectional schematic diagram at A-A in

[0035] Figure 6 is the schematic diagram of the bushing assembly of the embodiment of the present utility model exploding the insert.

[0036] Figure 7 is Figure 6 the longitudinal cross-sectional schematic diagram in

[0037] Figure 8 is the schematic diagram of the bushing assembly of another embodiment of the present utility model.

[0038] Figure 9 is the schematic diagram of the bushing assembly of yet another embodiment of the present utility model.

[0039] Figure 10 is the schematic diagram of the bushing assembly of still another embodiment of the present utility model.

[0040] Figure 11 is the schematic diagram of the bushing assembly of another embodiment of the present utility model.

[0041] Figure 12 is the longitudinal cross-sectional schematic diagram of the debugging device of the embodiment of the present utility model.

[0042] Reference Signs:

[0043] 100 - bushing assembly;

[0044] 1 - outer tube;

[0045] 2 - inner tube;

[0046] 3 - structural component; 31 - slot; 311 - first slot; 312 - second slot; 32 - plug-in component; 33 - connecting component; 330 - end face; 331 - first tube; 332 - second tube; 333 - third tube; 334 - first connecting portion; 335 - second connecting portion; 336 - slot group; 337 - first section; 338 - second section; 339 - third section;

[0047] 4 - insert; 41 - first piece; 42 - second piece;

[0048] 200 - vehicle frame; 300 - fastener; 400 - control arm. Detailed Description of the Embodiment

[0049] The embodiments of the present invention will be described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0050] The present invention is made based on the inventor's discovery and recognition of the following facts and problems:

[0051] In the prior art, the bushing debugging for the overall vehicle performance debugging mainly adopts the following two methods:

[0052] The first method: The bushing only adopts one structure, and rubbers with different hardnesses are used in the bushing, so as to debug bushings with different stiffnesses. Then, different bushings need to be press-fitted into different control arms, and the overall vehicle performance evaluation of multiple rubber bushings is realized through multiple disassembly and assembly of the suspension control arm.

[0053] The first disadvantage of this method is that it is necessary to disassemble and assemble the suspension multiple times, with a large debugging workload and a long debugging cycle. The second disadvantage is that it is impossible to quickly debug the inflection point and limit of the bushing curve. If it is necessary to debug the inflection point and limit of the bushing curve, it is necessary to re-open the mold, and the part trial production cycle is long, with high costs and a large workload. The third disadvantage is that the rubber debugging hardness range is approximately ±10 SHA, so the stiffness debugging range is relatively limited, and the maximum debugged stiffness is about 1.4 times.

[0054] The second method: The bushing adopts multiple structures, and each structure uses rubbers with different hardnesses, so that bushings with different stiffnesses can be adjusted. Although this method can meet the various stiffness, curve inflection point and limit requirements of performance engineers, it involves high costs, large workloads for engineers, and still requires multiple disassembly of the suspension control arm, resulting in low debugging efficiency. In addition, many suppliers have low support for this debugging solution, and the work is not easy to carry out.

[0055] Based on the above problems, an embodiment of the present utility model proposes a bushing assembly.

[0056] As Figure 1 shown, the bushing assembly 100 of the embodiment of the present utility model includes an outer tube 1, an inner tube 2 and a structural member 3.

[0057] The inner tube 2 is assembled inside the outer tube 1, and an annular space is formed between the outer tube 1 and the inner tube 2. As Figure 2 shown, both the inner tube 2 and the outer tube 1 can be circular tubes, and the wall thickness of the inner tube 2 is greater than the wall thickness of the outer tube 1. During assembly, the inner tube 2 can be directly inserted into the outer tube 1, and the inner tube 2 and the outer tube 1 are generally coaxially arranged, and the spaced space between the inner tube 2 and the outer tube 1 is the above-mentioned annular space.

[0058] The structural member 3 is disposed in the annular space and is connected to both the outer tube 1 and the inner tube 2. At least part of the structural member 3 has elasticity, and the structural member 3 is provided with a plurality of slots 31 for inserting inserts 4 for adjusting the performance of the bushing assembly 100.

[0059] For example, as Figure 1 shown, the structural member 3 can also be generally circular tube-shaped, and the structural member 3 can be assembled in the above-mentioned annular space. The structural member 3 as a whole can be made of materials such as rubber. During processing, the structural member 3 can be adhesively fixed to the outer peripheral wall of the inner tube 2 and the inner peripheral wall of the outer tube 1 by vulcanization respectively, so as to realize the connection and fixation of the loose parts of the bushing assembly 100 and achieve integration.

[0060] As Figure 1 shown, the structural member 3 can be provided with a plurality of slots 31, and the slots 31 can be integrally formed by injection molding. The notch of each slot 31 can be exposed between the inner tube 2 and the outer tube 1. During use, a corresponding insert 4 can be inserted into each slot 31, and the stiffness, performance curve, etc. of the bushing assembly 100 can be adjusted by different numbers and types of assembled inserts 4, and the material of the insert 4 can be plastic, metal, etc.

[0061] In the bushing assembly 100 according to the embodiment of the present utility model, a plurality of slots 31 are provided on the structural member 3, and inserts 4 can be inserted into the slots 31. By assembling different numbers and different types of inserts 4, the overall stiffness, performance curve, etc. of the bushing assembly 100 can be adjusted to meet the use requirements during debugging in the design process.

[0062] Secondly, compared with the process of repeatedly disassembling and installing the bushing assembly 100 in the prior art, the bushing assembly 100 according to the embodiment of the present utility model does not need to be disassembled after assembly. Only by inserting the corresponding insert 4 into the corresponding slot 31 can the use requirements for debugging be met, thereby improving the overall debugging efficiency, simplifying the operation process, and reducing the labor intensity.

[0063] In addition, since there is no need to set multiple structural models, etc., the overall R & D and design costs are also reduced.

[0064] In some embodiments, the structural member 3 has end faces 330 oppositely arranged in the axial direction of the bushing assembly 100, and the notch of each slot 31 is provided on the end face 330.

[0065] For example, as Figure 2 shown, the axial direction of the bushing assembly 100 can be the left - right direction, the end face 330 can be the left end face 330 or the right end face 330 of the structural member 3, and a plurality of slots 31 can be provided on both the left and right sides of the structural member 3. Among them, the notch of the left - hand slot 31 can face left, and the notch of the right - hand slot 31 can face right. Thus, it is convenient for the notches of each slot 31 to be exposed, and further convenient for the insert 4 to be inserted and assembled into the corresponding slot 31.

[0066] In some embodiments, the depth direction of the slot 31 is consistent with the axial direction of the bushing assembly 100, that is, the slot 31 can extend along the Figure 2 axial direction therein. Thus, the insert 4 can be completely inserted into the slot 31 along the axial direction, improving the convenience of assembly, avoiding the problem of inconvenient insertion when the depth direction of the slot 31 forms an angle with the axial direction, and also facilitating the processing and forming of the slot 31.

[0067] In some embodiments, slots 31 are provided on both end faces 330 of the structural member 3. Specifically, as Figure 2 shown, a plurality of slots 31 can be provided on both end faces 330 of the structural member 3 oppositely arranged in the axial direction, thereby ensuring the overall symmetry of the structural member 3, and further meeting the use requirements of synchronous pressure bearing and deformation on both sides during use.

[0068] In some embodiments, the structural member 3 or the structural member 3 equipped with the insert 4 is centrosymmetric about the axis of the bushing assembly 100. Specifically, during actual use, no insert 4 may be assembled in each slot 31 within the structural member 3. At this time, the overall formed by the inner cylinder, the structural member 3, and the outer tube is a centrosymmetric structure. This ensures the balance and consistency of various forces, performances, etc.

[0069] In some other embodiments, some or all of the slots 31 within the structural member 3 may be respectively assembled with inserts 4. At this time, the overall formed by the inner cylinder, the structural member 3, the outer tube, and the multiple inserts 4 is still a centrosymmetric structure.

[0070] In some embodiments, at least some of the slots 31 are arranged at intervals along the circumferential direction of the structural member 3 to form a slot group 336. One or at least two slot groups 336 are provided, and at least two slot groups 336 are arranged at intervals in the radial direction of the structural member 3.

[0071] For example, as Figure 3 shown, slot groups 336 may be provided at both axial ends of the structural member 3, and two slot groups 336 may be provided at each end. The two slot groups 336 at the same end may be concentrically arranged, and each slot group 336 may include multiple slots 31 arranged at equal intervals in the circumferential direction of the structural member 3. For example, each slot group 336 may include four slots 31. For the convenience of description, hereinafter, the multiple slots 31 of the inner slot group 336 will be referred to as the first slots 311, and the multiple slots 31 of the outer slot group 336 will be referred to as the second slots 312. As Figure 4 shown, the four first slots 311 and the four second slots 312 may be arranged at equal intervals along the circumferential direction of the structural member 3.

[0072] In some other embodiments, each slot group 336 may include two, three, five, six or other numbers of slots 31.

[0073] Thereby, the need for adjusting the position of the insert 4 in the radial and circumferential directions of the structural member 3 is satisfied, and the need for adjusting the number of the inserts 4 is also satisfied.

[0074] In some embodiments, as Figure 2 shown, the structural member 3 includes a plug-in member 32 and a connecting member 33. The plug-in member 32 is tubular and is disposed within the annular space, and the plug-in member 32 is located between two slot groups 336 adjacent in the radial direction of the structural member 3.

[0075] For example, the material of the connector 32 can be metal and can be in the structure of a round tube. The two slot groups 336 located at the same end of the structural member 3 can be separated by the connector 32, thereby playing a role in radially separating the slot groups 336. Secondly, the setting of the connector can also play a role in enhancing the overall structural strength of the structural member 3.

[0076] The connector 33 has elasticity. The connectors 33 are provided between the inner tube 2 and the connector 32, and between the connector 32 and the outer tube 1. The connectors 33 connect the inner tube 2, the connector 32, and the outer tube 1. A plurality of slots 31 are all provided on the connector 33. Specifically, the material of the connector 33 can be rubber or the like, and the connector 33 can be processed and formed by means of die casting.

[0077] Specifically, during processing, the inner tube 2 and the outer tube 1 can be first placed in the corresponding die, and then the connector 32 can be inserted into the above-mentioned annular space, and the connector 32 can be arranged at intervals with both the inner tube 2 and the outer tube 1. After the inner tube 2, the outer tube 1, and the connector 32 are placed, liquid rubber can be poured into the die. After the liquid rubber is cured, the connector 33 can be formed, and the connector 33 can simultaneously connect and fix the inner tube 2, the outer tube 1, and the connector 32, thereby realizing the integration of the bushing assembly 100.

[0078] In some embodiments, the connector 33 has multiple types, and the hardnesses of the multiple types of connectors 33 are different. The bushing assembly 100 matches one of the types of connectors 33. Specifically, the hardness of common rubber is generally between 50 SHA and 70 SHA. The hardness of the rubber can be classified by every 3 SHA, so that generally six different hardnesses or stiffnesses of the connectors 33 can be adjusted. Then, by respectively matching different types of connectors 33 with different numbers and types of inserts 4, the use requirements for adjusting the stiffness and curve of at least more than thirty types of bushing assemblies 100 can be met.

[0079] In some embodiments, as Figure 5 shown, the connector 33 is divided into a first section 337, a second section 338, and a third section 339 in the axial direction of the bushing assembly 100. The second section 338 is located between the first section 337 and the third section 339. A plurality of slots 31 are provided on the first section 337 and the third section 339. Specifically, the second section 338 can be a solid structure and can extend circumferentially along the connector 33 to form a closed loop. A plurality of slots 31 can be provided on both the first section 337 and the third section 339. Among them, the plurality of slots 31 on the first section 337 can be arranged at equal intervals along the circumferential direction of the connector 33, and the plurality of slots 31 on the second section 338 can be arranged at equal intervals along the circumferential direction of the connector 33.

[0080] Thus, on the one hand, it can endow the middle part of the bushing assembly 100 with good elastic buffering performance. On the other hand, since the first section 337 and the third section 339 are located outside the second section 338, it is convenient to insert and assemble the insert 4 into the connecting piece 33.

[0081] In some embodiments, as Figure 3 and Figure 4 shown, the connecting piece 33 includes a first pipe 331, a second pipe 332, a third pipe 333, a first connecting portion 334 and a second connecting portion 335.

[0082] The first pipe 331 is sleeved on the outer peripheral side of the inner pipe 2 and is connected to the inner pipe 2. For example, as Figure 5 shown, the first pipe 331 can be circular tubular. During processing, the first pipe 331 can be arranged on the outer peripheral side of the inner pipe 2 and be in close fit with the outer peripheral wall of the inner pipe 2, thereby ensuring the connection strength between the connecting piece 33 and the inner pipe 2.

[0083] The second pipe 332 is sleeved on the outer peripheral side of the first pipe 331, and the plug-in member 32 is embedded in the second pipe 332. For example, as Figure 5 shown, the second pipe 332 can also be circular tubular. The second pipe 332 can be sleeved on the outer peripheral side of the first pipe 331 and can be arranged at an interval from the first pipe 331. The second pipe 332 can be a hollow structure, and the connector can be completely embedded in the pipe wall of the second pipe 332, thereby avoiding the situation of the connector being exposed, improving the integrity and consistency of the appearance of the entire structural component 3, and also being beneficial to improving the overall structural strength.

[0084] The third pipe 333 is sleeved on the outer peripheral side of the second pipe 332 and is connected to the outer pipe 1. For example, as Figure 5 shown, the third pipe 333 can also be circular tubular. The third pipe 333 can be sleeved on the outer peripheral side of the second pipe 332 and can be arranged at an interval from the second pipe 332. The outer peripheral side of the third pipe 333 can be in close fit with the inner peripheral wall of the outer pipe 1, thereby ensuring the connection strength between the connecting piece 33 and the outer pipe 1.

[0085] The first connecting portion 334 is connected between the first pipe 331 and the second pipe 332, the second connecting portion 335 is connected between the second pipe 332 and the third pipe 333, and a plurality of slots 31 are provided in at least one of the first connecting portion 334 and the second connecting portion 335.

[0086] Specifically, as Figure 5 shown, both the first connecting portion 334 and the second connecting portion 335 can be generally circular tubular. The first connecting portion 334 can be integrally formed between the first pipe 331 and the second pipe 332 by injection molding, and the second connecting portion 335 can also be integrally formed between the second pipe 332 and the third pipe 333 by injection molding.

[0087] As Figure 5 shown, a plurality of first grooves 311 may be provided at both axial ends of the first connecting portion 334, and the plurality of first grooves 311 are arranged at equal intervals along the circumferential direction of the first connecting portion 334. A plurality of second grooves 312 may be provided at both axial ends of the second connecting portion 335, and the plurality of second grooves 312 are arranged at equal intervals along the circumferential direction of the second connecting portion 335, thereby meeting the use requirements of the assembly insert 4.

[0088] In some embodiments, the bushing assembly 100 includes an insert 4, and at least a part of the socket 31 is assembled with the insert 4.

[0089] For example, as Figure 6 and Figure 7 shown, two concentrically arranged socket groups 336 may be provided at both ends of the bushing assembly 100. Each socket group 336 may include four sockets 31 arranged at equal intervals along the circumferential direction of the bushing assembly 100. That is, the inner socket group 336 includes four first grooves 311, and the outer socket group 336 includes four second grooves 312. For the convenience of description, hereinafter, a plurality of inserts 4 located at one end of the bushing assembly 100 are referred to as the first pieces 41, and a plurality of inserts 4 located at the other end of the bushing assembly 100 are referred to as the second pieces 42.

[0090] A total of 16 inserts 4 may be provided. Among them, 8 are the first pieces 41. The 8 first pieces 41 may be respectively provided at one end of the bushing assembly 100 and respectively inserted and assembled into the corresponding four first grooves 311 and four second grooves 312. The remaining 8 are the second pieces 42. The 8 second pieces 42 may be respectively provided at the other end of the bushing assembly 100 and respectively inserted and assembled into the corresponding four first grooves 311 and four second grooves 312.

[0091] Compared with the case where the bushing assembly 100 does not provide the insert 4, the bushing assembly 100 of this embodiment can increase the stiffness in two radial directions of the bushing assembly 100 and shorten the curve limit, and the overall stiffness can be increased to twice that of the bushing assembly 100 without the insert 4.

[0092] In some embodiments, as Figure 8 shown, inserts 4 may be only installed in each of the second grooves 312 at both ends of the bushing assembly 100, that is, no inserts 4 may be assembled in each of the first grooves 311, so that the effect of increasing the stiffness in two radial directions of the bushing assembly 100 and shortening the curve limit can also be achieved.

[0093] In other embodiments, as Figure 9As shown, inserts 4 can be assembled only in the respective first grooves 311 at both ends of the bushing assembly 100, that is, no inserts 4 need to be assembled in the respective second grooves 312. Thus, the stiffness in two radial directions of the bushing assembly 100 can be increased and the curve limit can be shortened. However, it is different from the performance in the above Figure 8 in terms of performance.

[0094] In some embodiments, as Figure 10 shown, inserts 4 can be inserted and assembled only in two of the four first grooves 311 at each end of the bushing assembly 100, and no inserts 4 need to be assembled in the remaining two first grooves 311 at the same end and the remaining four second grooves 312. Thus, the stiffness in one radial direction of the bushing assembly 100 can be increased and the curve limit can be shortened.

[0095] In other embodiments, as Figure 11 shown, inserts 4 can be inserted and assembled only in two of the four second grooves 312 at each end of the bushing assembly 100, and no inserts 4 need to be assembled in the remaining two second grooves 312 at the same end and the remaining four first grooves 311. Thus, the stiffness in one radial direction of the bushing assembly 100 can also be increased and the curve limit can be shortened. However, it is different from the performance in the above Figure 10 in terms of performance.

[0096] The debugging device of the embodiment of the present invention will be described below.

[0097] The debugging device of the embodiment of the present invention includes a bushing assembly 100, and the bushing assembly can be the bushing assembly 100 described in any of the above embodiments.

[0098] In some embodiments, as Figure 12 shown, the bushing assembly 100 includes a vehicle frame 200, a fastener 300, and a control arm 400. The vehicle frame 200 is provided with an assembly groove, and the fastener 300 passes through the assembly groove. For example, as Figure 12 shown, the vehicle frame 200 can include two plate bodies arranged oppositely in the left-right direction, and the assembly groove can be formed in the two plate bodies.

[0099] The fastener 300 can include a bolt and a nut. The bolt can pass through the two plate bodies at the same time, and a part of the bolt is located in the assembly groove, and the nut can be threadedly assembled at the end of the bolt. The control arm 400 is arranged in the assembly groove and sleeved on the outer peripheral side of the fastener 300, and the bushing assembly 100 is assembled between the fastener 300 and the control arm 400.

[0100] During debugging, the fastener 300 can be loosened, so that the slot 31 on the bushing assembly 100 can be exposed. Then, the insert 4 can be inserted into the corresponding slot 31. Finally, the fastener 300 can be tightened again.

[0101] The debugging device of the embodiment of the present utility model has the following beneficial effects:

[0102] a. The structure of the bushing assembly is unique, and only one set of molds is required during the debugging process, reducing the process cost.

[0103] b. Compared with only adjusting the hardness of the rubber, etc., by selecting different numbers and types of inserts, the debugging stiffness range can be increased to twice, improving the debugging range.

[0104] c. There are various ways of combination, and up to thirty debugging bushing stiffness and curve schemes can be debugged, fully meeting the use requirements of debugging.

[0105] d. By adding inserts or changing the type of inserts in two radial directions of the bushing assembly, the stiffness, curve limit, and inflection point in the two radial directions can be debugged respectively, further improving the flexibility of debugging.

[0106] e. Since only inserting the insert into the corresponding slot can realize the change of the bushing assembly, the whole bushing assembly does not need to be repeatedly disassembled and installed, that is, the bushing does not need to be press-fitted during the debugging process, without the need for bushing press-fitting equipment and tooling, the debugging input cost is relatively low, the replacement of the bushing during debugging is relatively simpler, and the efficiency is relatively higher.

[0107] f. The suspension does not need to be disassembled during the debugging process, the debugging workload is relatively small, and the debugging efficiency is relatively high.

[0108] g. The demand for debugging personnel is relatively reduced.

[0109] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present utility model.

Claims

1. A bushing assembly, characterized in that, Comprising: An outer tube and an inner tube, the inner tube being assembled within the outer tube, and an annular space being formed between the outer tube and the inner tube; A structural component, the structural component being disposed within the annular space and connected to both the outer tube and the inner tube, at least a portion of the structural component being elastic, and the structural component being provided with a plurality of slots for inserting inserts for adjusting the performance of the bushing assembly.

2. The bushing assembly according to claim 1, wherein The structural component has end faces arranged opposite to each other in the axial direction of the bushing assembly, and the notch of each slot is disposed on the end face.

3. The bushing assembly according to claim 2, wherein The depth direction of the slot is consistent with the axial direction of the bushing assembly.

4. The bushing assembly according to claim 2, wherein The slots are provided on both of the two end faces of the structural component.

5. The bushing assembly according to claim 1, characterized in that, The structural component or the structural component assembled with the insert is centrosymmetric about the axis of the bushing assembly.

6. The bushing assembly according to claim 1, wherein At least a portion of the slots are arranged at intervals along the circumferential direction of the structural component to form a slot group, one or at least two slot groups are provided, and at least two slot groups are arranged at intervals in the radial direction of the structural component.

7. The bushing assembly according to claim 6, characterized in that, The structural component includes: A plug-in component, the plug-in component being tubular and disposed within the annular space, and the plug-in component being located between two adjacent slot groups in the radial direction of the structural component; A connecting component, the connecting component being elastic, the connecting component being provided between the inner tube and the plug-in component and between the plug-in component and the outer tube, the connecting component connecting the inner tube, the plug-in component, and the outer tube, and a plurality of slots being provided on the connecting component.

8. The bushing assembly according to claim 7, wherein, The connecting component has a plurality of types, and the hardnesses of the plurality of types of connecting components are different, and the bushing assembly matches one of the types of connecting components.

9. The bushing assembly according to claim 7, wherein, The connecting component is divided into a first section, a second section, and a third section in the axial direction of the bushing assembly, the second section being located between the first section and the third section, and a plurality of slots being provided on the first section and the third section.

10. The bushing assembly according to claim 7, wherein The connecting component includes: A first tube, the first tube being sleeved on the outer peripheral side of the inner tube and connected to the inner tube; A second tube, the second tube being sleeved on the outer peripheral side of the first tube, and the plug-in component being embedded within the second tube; A third tube, the third tube being sleeved on the outer peripheral side of the second tube and connected to the outer tube; A first connecting portion and a second connecting portion, the first connecting portion being connected between the first tube and the second tube, the second connecting portion being connected between the second tube and the third tube, and a plurality of slots being provided on at least one of the first connecting portion and the second connecting portion.

11. The bushing assembly according to any one of claims 1-10, characterized in that, Including the insert, at least a portion of the slots are assembled with the insert.

12. A debugging device, characterized in that, Including the bushing assembly according to any one of claims 1-11 above.

13. The debugging device according to claim 12, wherein, Comprising: A vehicle frame and a fastener, the vehicle frame being provided with an assembly groove, and the fastener passing through the assembly groove; A control arm, the control arm being disposed within the assembly groove and sleeved on the outer peripheral side of the fastener, and the bushing assembly being assembled between the fastener and the control arm.