Variable-frequency dynamic damper for vehicle

Abstract

The utility model relates to a variable-frequency dynamic shock absorber for a vehicle, which comprises a bracket, a variable-frequency dynamic shock absorber, a variable-frequency dynamic shock absorber, a variable-frequency dynamic shock absorber and a variable-frequency dynamic shock absorber, the main frequency conversion assembly is arranged in the bracket; one end of the first auxiliary frequency conversion assembly is detachably connected to the first side wall of the support, the other end of the first auxiliary frequency conversion assembly is connected to the main frequency conversion assembly, and the first auxiliary frequency conversion assembly has a first preset elastic deformation quantity; one end of the second auxiliary frequency conversion assembly is detachably connected to the second side wall, the other end of the second auxiliary frequency conversion assembly is connected to the main frequency conversion assembly, and the second auxiliary frequency conversion assembly has a second preset elastic deformation quantity. According to the utility model, frequency adjustment in a large range can be realized by replacing the main frequency conversion assemblies with different masses, and frequency adjustment in a small range can be accurately realized by adjusting the elastic deformation quantity of the first auxiliary frequency conversion assembly and the second auxiliary frequency conversion assembly, so that the cost and time of frequency adjustment are reduced.

Description

Technical Field

[0001] The utility model relates to the field of shock absorbers, and particularly to a variable-frequency dynamic shock absorber for vehicles. Background Art

[0002] Shock absorbers are important components in vehicles and are usually installed on components with large vibrations or those causing interior noise in the vehicle frame, chassis, steering wheel, etc. to offset the vibrations of these components, thereby meeting the NVH performance of the whole vehicle. Specifically, if the frequencies of the shock absorber and the component on which the shock absorber is installed (such as the steering wheel) are the same, the vibration energy of the component on which the shock absorber is installed will be transferred to the shock absorber. That is, by installing a shock absorber with the same frequency as the component, the absorption of the vibration energy of these components can be achieved.

[0003] Currently, the mass of mass-produced shock absorbers is fixed, so they have a fixed frequency, which results in a long time required to produce samples with different frequencies and requires a large amount of manpower and cost during NVH tuning.

[0004] Therefore, there is a need for further improvement in existing shock absorbers.

[0005] The information disclosed in the background part of the present utility model is only intended to increase the understanding of the overall background of the present utility model and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide a variable-frequency dynamic shock absorber for vehicles, which can improve versatility by replacing the main variable-frequency component, the first sub-variable-frequency component, and the second sub-variable-frequency component with different masses, so as to reduce the production time of shock absorbers with multiple frequencies in the development of the whole vehicle. In addition, during the application stage of the whole vehicle, a variable-frequency dynamic shock absorber for vehicles can be used to solve the problems of different frequencies at different positions.

[0007] The present utility model provides a variable-frequency dynamic shock absorber for vehicles, comprising: a bracket having opposite first and second side walls of the bracket; a main variable-frequency component disposed within the bracket; and a first sub-variable-frequency component, one end of which is detachably connected to the first side wall of the bracket and the other end of which is connected to the main variable-frequency component, the first sub-variable-frequency component having a first predetermined elastic deformation amount; a second sub-variable-frequency component, one end of which is detachably connected to the second side wall of the bracket and the other end of which is connected to the main variable-frequency component, the second sub-variable-frequency component having a second predetermined elastic deformation amount.

[0008] Preferably, the first side wall of the bracket has two first mounting holes, and first fastening bolts are installed in the first mounting holes; the first sub-frequency conversion assembly includes: a first U-shaped spring and a first fastening nut; the first U-shaped spring has opposite first side wall of the U-shaped spring and second side wall of the U-shaped spring. The first side wall of the U-shaped spring of the first U-shaped spring is welded to the main frequency conversion assembly. The second side wall of the U-shaped spring of the first U-shaped spring has a first opening, and a second mounting hole is provided at a position near the first opening on the second side wall of the U-shaped spring of the first U-shaped spring; the first fastening nut is fixed at the second mounting hole of the first U-shaped spring, and the first fastening bolt can be screwed into the first fastening nut to connect the first U-shaped spring to the first side wall of the bracket.

[0009] Preferably, the first side wall of the bracket has a first mounting hole, and a first fastening nut is welded in the first mounting hole; the main frequency conversion assembly has a first side wall of the main frequency conversion assembly facing the first side wall of the bracket, and the first side wall of the main frequency conversion assembly has a threaded hole; the first sub-frequency conversion assembly includes: a first fastening bolt, a first adjusting bolt and a first helical spring; the first end of the first helical spring is fixedly connected to the first end of the first fastening bolt, and the second end of the first helical spring is fixedly connected to the first end of the first adjusting bolt; the second end of the first adjusting bolt is screwed into the first fastening nut on the first side wall of the bracket to connect the first sub-frequency conversion assembly to the first side wall of the bracket; the second end of the first fastening bolt is screwed into the threaded hole on the first side wall of the main frequency conversion assembly of the main frequency conversion assembly to connect the first sub-frequency conversion assembly to the main frequency conversion assembly.

[0010] Preferably, the first side wall of the bracket has a first mounting hole, and a first fastening nut is welded in the first mounting hole; the main frequency conversion assembly has a first side wall of the main frequency conversion assembly facing the first side wall of the bracket, the first side wall of the main frequency conversion assembly has a first boss, and the end face of the first boss has a receiving hole; the first sub-frequency conversion assembly includes: a first adjusting bolt and a first helical spring; the first end of the first helical spring is inserted into the receiving hole of the first boss and fixedly connected to the first boss, and the second end of the first helical spring is fixedly connected to the first end of the first adjusting bolt; the second end of the first adjusting bolt is screwed into the first fastening nut on the first side wall of the bracket to connect the first sub-frequency conversion assembly to the first side wall of the bracket.

[0011] Preferably, the first side wall of the bracket has a first mounting hole, and a first fastening nut is welded in the first mounting hole; the main frequency conversion component has a first side wall of the main frequency conversion component facing the first side wall of the bracket, and the first side wall of the main frequency conversion component has a first boss; the first sub-frequency conversion component includes: a first adjusting bolt and a first spiral spring; the first end of the first adjusting bolt has a first extension part and a first stop part extending outward along the radial direction, and the diameter of the first extension part is smaller than the diameter of the first stop part; the first end of the first spiral spring is sleeved on the first boss and fixedly connected to the first boss, the second end of the first spiral spring is sleeved on the first extension part of the first end of the first adjusting bolt and abuts against the first stop part, and is fixedly connected to the first stop part; the second end of the first adjusting bolt is screwed into the first fastening nut on the first side wall of the bracket to connect the first sub-frequency conversion component to the first side wall of the bracket.

[0012] Preferably, the first side wall of the bracket has a first mounting hole, and a first fastening nut is welded in the first mounting hole; the main frequency conversion component has a first side wall of the main frequency conversion component facing the first side wall of the bracket, and the first side wall of the main frequency conversion component has a first boss; the first sub-frequency conversion component includes: a first adjusting bolt and a first rubber cylinder; the first end of the first adjusting bolt has a first extension part and a first stop part extending outward along the radial direction, and the diameter of the first extension part is smaller than the diameter of the first stop part; the interior of the first rubber cylinder is hollow, and the outer peripheral wall of the first rubber cylinder has an arc-shaped groove to increase the elasticity of the first rubber cylinder, so that the first rubber cylinder has a first predetermined elastic deformation amount, the first end of the first rubber cylinder is sleeved on the first boss and fixedly connected to the first boss, the second end of the first rubber cylinder is sleeved on the first extension part of the first end of the first adjusting bolt and abuts against the first stop part, and is fixedly connected to the first stop part; the second end of the first adjusting bolt is screwed into the first fastening nut on the first side wall of the bracket to connect the first sub-frequency conversion component to the first side wall of the bracket.

[0013] Preferably, the second side wall of the bracket has two third mounting holes, and second fastening bolts are installed in the third mounting holes; the second sub-frequency conversion component includes: a second U-shaped spring and a second fastening nut; the second U-shaped spring has a U-shaped spring first side wall and a U-shaped spring second side wall opposite to each other, the U-shaped spring first side wall of the second U-shaped spring is welded to the main frequency conversion component, and the U-shaped spring second side wall of the second U-shaped spring has a second opening, and a fourth mounting hole is provided at a position of the U-shaped spring second side wall of the second U-shaped spring close to the second opening; the second fastening nut is fixed at the fourth mounting hole of the second U-shaped spring, and the second fastening bolt can be screwed into the second fastening nut to connect the second U-shaped spring to the second side wall of the bracket.

[0014] Preferably, the second sidewall of the bracket has a third mounting hole, and a second fastening nut is welded in the third mounting hole; the main frequency conversion component has a second sidewall of the main frequency conversion component facing the second sidewall of the bracket, and the second sidewall of the main frequency conversion component has a threaded hole; the second sub-frequency conversion component includes: a second fastening bolt, a second adjustment bolt, and a second helical spring; the first end of the second helical spring is fixedly connected to the first end of the second fastening bolt, and the second end of the second helical spring is fixedly connected to the first end of the second adjustment bolt; the second end of the second adjustment bolt is screwed into the second fastening nut on the second sidewall of the bracket to connect the second sub-frequency conversion component to the second sidewall of the bracket; the second end of the second fastening bolt is screwed into the threaded hole on the second sidewall of the main frequency conversion component of the main frequency conversion component to connect the second sub-frequency conversion component to the main frequency conversion component.

[0015] Preferably, the second sidewall of the bracket has a third mounting hole, and a second fastening nut is welded in the third mounting hole; the main frequency conversion component has a second sidewall of the main frequency conversion component facing the second sidewall of the bracket, the second sidewall of the main frequency conversion component has a second boss, and the end face of the second boss has a receiving hole; the second sub-frequency conversion component includes: a second adjustment bolt and a second helical spring; the first end of the second helical spring is inserted into the receiving hole of the second boss and fixedly connected to the second boss, and the second end of the second helical spring is fixedly connected to the first end of the second adjustment bolt; the second end of the second adjustment bolt is screwed into the second fastening nut on the second sidewall of the bracket to connect the second sub-frequency conversion component to the second sidewall of the bracket.

[0016] Preferably, the second sidewall of the bracket has a third mounting hole, and a second fastening nut is welded in the third mounting hole; the main frequency conversion component has a second sidewall of the main frequency conversion component facing the second sidewall of the bracket, and the second sidewall of the main frequency conversion component has a second boss; the first sub-frequency conversion component includes: a second adjustment bolt and a second helical spring; the first end of the second adjustment bolt has a second extension portion and a second stop portion extending radially outward, and the diameter of the second extension portion is smaller than the diameter of the second stop portion; the first end of the second helical spring is sleeved on the second boss and fixedly connected to the second boss, the second end of the second helical spring is sleeved on the second extension portion of the first end of the second adjustment bolt and abuts against the second stop portion, and is fixedly connected to the second stop portion; the second end of the second adjustment bolt is screwed into the second fastening nut on the second sidewall of the bracket to connect the second sub-frequency conversion component to the second sidewall of the bracket.

[0017] Preferably, the second side wall of the bracket has a third mounting hole, and a second fastening nut is welded in the third mounting hole; the main frequency conversion assembly has a second side wall of the main frequency conversion assembly facing the second side wall of the bracket, and the second side wall of the main frequency conversion assembly has a second boss; the second auxiliary frequency conversion assembly includes: a second adjusting bolt and a second rubber cylinder; the first end of the second adjusting bolt has a second expansion portion and a second stop portion extending radially outward, and the diameter of the second expansion portion is smaller than the diameter of the second stop portion; the interior of the second rubber cylinder is hollow, and the outer peripheral wall of the second rubber cylinder has an arc-shaped groove to increase the elasticity of the second rubber cylinder, so that the second rubber cylinder has a second predetermined elastic deformation amount, the first end of the second rubber cylinder is sleeved on the second boss and fixedly connected to the second boss, the second end of the second rubber cylinder is sleeved on the second expansion portion of the first end of the second adjusting bolt and abuts against the second stop portion, and is fixedly connected to the second stop portion; the second end of the second adjusting bolt is screwed into the second fastening nut on the second side wall of the bracket to connect the second auxiliary frequency conversion assembly to the second side wall of the bracket.

[0018] For the variable-frequency dynamic shock absorber for vehicles of the present invention, by replacing the main frequency conversion assemblies with different masses, a large range of frequency adjustment can be achieved. By adjusting the elastic deformation amounts of the first auxiliary frequency conversion assembly and the second auxiliary frequency conversion assembly, a small range of frequency adjustment can be accurately achieved, thereby reducing the cost and time of frequency adjustment. The implementation scheme of the present invention can improve the versatility by replacing the main frequency conversion assemblies, the first auxiliary frequency conversion assembly and the second auxiliary frequency conversion assembly with different masses, so as to reduce the production time of shock absorbers with multiple frequencies in the whole vehicle development. In addition, at the stage of the whole vehicle application, a variable-frequency dynamic shock absorber for vehicles can be used to solve the problems of different frequencies at different positions.

[0019] The device of the present invention has other characteristics and advantages, which will be obvious from the accompanying drawings incorporated herein and the subsequent implementation schemes, or will be described in detail in the accompanying drawings incorporated herein and the subsequent implementation schemes. These accompanying drawings and implementation schemes are jointly used to explain the specific principles of the present invention. Brief Description of the Drawings

[0020] Figure 1 FIG. is a schematic structural diagram of a variable-frequency dynamic shock absorber for vehicles according to an implementation scheme of the present invention;

[0021] Figure 2 is Figure 1 a sectional view of;

[0022] Figure 3 FIG. is a schematic structural diagram of the bracket;

[0023] Figure 4 is Figure 1Schematic diagram of the installation of the first sub-frequency conversion component and the main frequency conversion component;

[0024] Figure 5 Another schematic diagram of the variable-frequency dynamic shock absorber for vehicles according to the embodiment of the present invention;

[0025] Figure 6 Another schematic diagram of the variable-frequency dynamic shock absorber for vehicles according to the embodiment of the present invention;

[0026] Figure 7 Another schematic diagram of the variable-frequency dynamic shock absorber for vehicles according to the embodiment of the present invention;

[0027] Figure 8 Another schematic diagram of the variable-frequency dynamic shock absorber for vehicles according to the embodiment of the present invention.

[0028] Explanation of reference numerals:

[0029] 100, bracket; 101, first side wall of the bracket; 102, second side wall of the bracket; 103, first mounting plate; 104, second mounting plate; 105, mounting hole; 106, first limiting plate; 107, second limiting plate; 108, fastening bolt; 109, mounting hole; 110, fastening nut; 111, mounting hole;

[0030] 200, main frequency conversion component; 201, first side wall of the main frequency conversion component; 202, second side wall of the main frequency conversion component; 203, threaded hole; 204, boss; 205, boss; 206, boss; 207, boss;

[0031] 300, first sub-frequency conversion component; 310, U-shaped spring; 311, first side wall of the U-shaped spring; 312, second side wall of the U-shaped spring; 313, opening; 314, mounting hole; 320, fastening nut;

[0032] 400, second sub-frequency conversion component; 401, fastening bolt; 402, adjusting bolt; 403, helical spring; 404, rubber cylinder; 405, arc-shaped groove; 406, stop portion; 407, extension portion.

[0033] It should be understood that the drawings are not necessarily drawn to scale, but rather present simplified representations of various features to illustrate the basic principles of the present invention. The specific design features disclosed in the present invention (including, for example, specific dimensions, directions, positions, and shapes) will be determined in part by the specific application and use environment.

[0034] In these figures, throughout the multiple figures of the drawings, the same reference numerals represent the same or equivalent parts of the present invention. Detailed implementation manners

[0035] Reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. Although the present invention will be described in conjunction with exemplary embodiments, it should be understood that the present specification is not intended to limit the present invention to these exemplary embodiments. On the contrary, the present invention is intended to cover not only these exemplary embodiments, but also various alternative forms, modifications, equivalent forms and other embodiments that may be included within the spirit of the present invention and the scope defined by the appended claims.

[0036] The following Figures 1 to 8 describes a variable-frequency dynamic shock absorber for a vehicle according to an embodiment of the present invention.

[0037] The variable-frequency dynamic shock absorber for a vehicle according to an embodiment of the present invention includes: a bracket 100, a main variable-frequency component 200, a first sub-variable-frequency component 300, and a second sub-variable-frequency component 400.

[0038] As Figure 2 shown, the bracket 100 has opposite first bracket sidewall 101 and second bracket sidewall 102, and the first bracket sidewall 101 and the second bracket sidewall 102 are spaced apart in the length direction of the bracket 100 (i.e., Figure 2 the extending direction of L1 in

[0039] The main variable-frequency component 200 is disposed within the bracket 100.

[0040] One end of the first sub-variable-frequency component 300 is detachably connected to the first bracket sidewall 101, the other end of the first sub-variable-frequency component 300 is connected to the main variable-frequency component 200, and the first sub-variable-frequency component 300 has a first predetermined elastic deformation amount.

[0041] One end of the second sub-variable-frequency component 400 is detachably connected to the second bracket sidewall 102, the other end of the second sub-variable-frequency component 400 is connected to the main variable-frequency component 200, and the second sub-variable-frequency component 400 has a second predetermined elastic deformation amount.

[0042] The implementation scheme of the utility model can achieve a larger range of frequency adjustment by replacing the main frequency conversion component 200 of different masses, and can accurately achieve a smaller range of frequency adjustment by adjusting the elastic deformation of the first sub-frequency conversion component 300 and the second sub-frequency conversion component 400, thereby reducing the cost and time of frequency adjustment. The variable frequency dynamic damper for vehicles of the utility model can absorb the vibration in the length direction of the bracket 100 through the first sub-frequency conversion component 300 and the second sub-frequency conversion component 400. The implementation scheme of the utility model can improve the versatility by replacing the main frequency conversion component 200, the first sub-frequency conversion component 300 and the second sub-frequency conversion component 400 of different masses, so as to reduce the production time of multiple frequency dampers in the development of the whole vehicle. In addition, a variable frequency dynamic damper for vehicles can be used to solve the problem of different frequencies in different positions in the whole vehicle application stage.

[0043] In an exemplary embodiment, the bracket 100 can install the entire variable frequency dynamic shock absorber for a vehicle on a predetermined part of the vehicle (ie, a component that vibrates greatly or causes noise inside the vehicle). Figure 3 As shown, the bracket 100 has a first mounting plate 103 and a second mounting plate 104, wherein the first mounting plate 103 is connected to the bracket first side wall 101, and the second mounting plate 104 is connected to the bracket second side wall 102. The first mounting plate 103 and the second mounting plate 104 both have mounting holes 105, through which bolts can be passed to connect the bracket 100 to a predetermined part of the vehicle.

[0044] In an exemplary embodiment, Figure 3 As shown, the bracket 100 further has a first limiting plate 106 and a second limiting plate 107 opposite to each other. The first limiting plate 106 and the second limiting plate 107 are arranged in a width direction of the bracket 100 (ie, Figure 2 The first limiting plate 106 and the second limiting plate 107 can prevent the main frequency conversion component 200 from deviating in the width direction of the bracket 100 due to shaking.

[0045] In an exemplary embodiment, the main frequency conversion assembly 200 includes a mass block, which is substantially in the shape of a rectangular parallelepiped (see Figure 1 ). A wide range of frequency adjustment can be achieved by replacing mass blocks of different masses.

[0046] The forms of the first sub-frequency conversion component 300 and the second sub-frequency conversion component 400 can be the same (i.e., the first predetermined elastic deformation amount is equal to the second predetermined elastic deformation amount), or different (i.e., the first predetermined elastic deformation amount is not equal to the second predetermined elastic deformation amount). Their forms are introduced below in conjunction with the accompanying drawings.

[0047] Example 1

[0048] As Figure 3 shown, the first side wall 101 of the bracket 100 has two mounting holes 111, and fastening bolts 108 are installed in the mounting holes 111. The second side wall 102 of the bracket 100 has a mounting hole 109, and a fastening nut 110 is welded in the mounting hole 109.

[0049] As Figure 4 shown, the main frequency conversion component 200 has an opposite first side wall 201 and a second side wall 202 of the main frequency conversion component. The first side wall 201 and the second side wall 202 of the main frequency conversion component are spaced apart in the length direction of the bracket 100. The first side wall 201 of the main frequency conversion component faces the first side wall 101 of the bracket, and the second side wall 202 of the main frequency conversion component faces the second side wall 102 of the bracket and has a threaded hole 203.

[0050] As Figure 4 shown, the first sub-frequency conversion component 300 includes: a U-shaped spring 310 and a fastening nut 320. The U-shaped spring 310 has an opposite first side wall 311 and a second side wall 312 of the U-shaped spring. The first side wall 311 of the U-shaped spring 310 is welded to the first side wall 201 of the main frequency conversion component 200, and the second side wall 312 of the U-shaped spring 310 has an opening 313. A mounting hole 314 is provided at a position of the second side wall 312 of the U-shaped spring 310 near the opening 313. The fastening nut 320 is fixed at the mounting hole 314 of the U-shaped spring 310. Specifically, the fastening nut 320 is welded to the U-shaped spring 310. Two fastening nuts 320 are provided.

[0051] The fastening bolt 108 on the first side wall 101 of the bracket 100 can be screwed into the fastening nut 320 to connect the U-shaped spring 310 to the first side wall 101 of the bracket 100. The U-shaped spring 310 installed between the main frequency conversion component 200 and the first side wall 101 of the bracket 100 has a first predetermined elastic deformation amount.

[0052] As Figure 2 shown, the second sub-frequency conversion component 400 includes: a fastening bolt 401, an adjustment bolt 402, and a helical spring 403. The first end of the helical spring 403 is fixedly connected to the first end of the fastening bolt 401, and the second end of the helical spring 403 is fixedly connected to the first end of the adjustment bolt 402.

[0053] The second end of the adjusting bolt 402 is screwed into the fastening nut 110 on the second side wall 102 of the bracket 100 of the bracket to connect the second pair of frequency conversion components 400 to the second side wall 102 of the bracket 100 of the bracket. Moreover, the second end of the fastening bolt 401 is screwed into the threaded hole 203 on the second side wall 202 of the main frequency conversion component 200 of the main frequency conversion component to be connected to the main frequency conversion component 200. The helical spring 403 installed between the main frequency conversion component 200 and the second side wall 102 of the bracket 100 of the bracket has a second predetermined elastic deformation amount.

[0054] In Embodiment 1, the first pair of frequency conversion components 300 is in the form of a U-shaped spring 310, and the second pair of frequency conversion components 400 is in the form of a helical spring 403. Therefore, the first pair of frequency conversion components 300 and the second pair of frequency conversion components 400 have different elastic deformation amounts.

[0055] When vibrating in the length direction of the bracket 100, the vibration in the length direction of the bracket 100 can generate elastic deformation to absorb the energy of the vibration, thereby achieving vibration damping.

[0056] The first pair of frequency conversion components 300 and the second pair of frequency conversion components 400 can also both be in the form of a helical spring 403. The following three embodiments, namely Embodiment 2, Embodiment 3, and Embodiment 4, are given to introduce the installation method of the helical spring 403.

[0057] Embodiment 2

[0058] The first pair of frequency conversion components 300 and the second pair of frequency conversion components 400 can also both be in the form of a helical spring 403. When selecting the helical spring 403, the method of Figure 2 can be referred to, that is, the helical spring 403 is screwed into the threaded hole 203 of the main frequency conversion component 200 through the fastening bolt 401.

[0059] As Figure 5 shown, specifically, both the first side wall 101 and the second side wall 102 of the bracket 100 of the bracket have mounting holes 109, and fastening nuts 110 are welded in the mounting holes 109.

[0060] The main frequency conversion component 200 has opposite first side wall 201 and second side wall 202 of the main frequency conversion component. The first side wall 201 and the second side wall 202 of the main frequency conversion component are spaced apart in the length direction of the bracket 100 and both have threaded holes 203.

[0061] Both the first pair of frequency conversion components 300 and the second pair of frequency conversion components 400 include: a fastening bolt 401, an adjusting bolt 402, and a helical spring 403. The first end of the helical spring 403 is fixedly connected to the first end of the fastening bolt 401, and the second end of the helical spring 403 is fixedly connected to the first end of the adjusting bolt 402.

[0062] The second end of the adjusting bolt 402 of the first sub-frequency conversion component 300 is screwed into the fastening nut 110 on the first side wall 101 of the bracket 100 to connect the first sub-frequency conversion component 300 to the first side wall 101 of the bracket 100. Moreover, the second end of the fastening bolt 401 of the first sub-frequency conversion component 300 is screwed into the threaded hole 203 on the first side wall 201 of the main frequency conversion component 200 to connect to the main frequency conversion component 200. The helical spring 403 installed between the main frequency conversion component 200 and the first side wall 101 of the bracket 100 has a first predetermined elastic deformation amount.

[0063] The second end of the adjusting bolt 402 of the second sub-frequency conversion component 400 is screwed into the fastening nut 110 on the second side wall 102 of the bracket 100 to connect the second sub-frequency conversion component 400 to the second side wall 102 of the bracket 100. Moreover, the second end of the fastening bolt 401 of the second sub-frequency conversion component 400 is screwed into the threaded hole 203 on the second side wall 202 of the main frequency conversion component 200 to connect to the main frequency conversion component 200. The helical spring 403 installed between the main frequency conversion component 200 and the second side wall 102 of the bracket 100 has a second predetermined elastic deformation amount.

[0064] Embodiment 3

[0065] As Figure 6 shown, the difference between Embodiment 3 and Embodiment 2 is that the first side wall 201 of the main frequency conversion component 200 in Embodiment 3 has a boss 204, the second side wall 202 of the main frequency conversion component 200 has a boss 205, and the end faces of the boss 204 and the boss 205 both have receiving holes. The first end of the helical spring 403 of the first sub-frequency conversion component 300 is inserted into the receiving hole of the boss 204 and fixedly connected to the boss 204, and the first end of the helical spring 403 of the second sub-frequency conversion component 400 is inserted into the receiving hole of the boss 205 and fixedly connected to the boss 205.

[0066] Embodiment 4

[0067] As Figure 7 shown, the difference between Embodiment 4 and Embodiment 3 is that the first side wall 201 of the main frequency conversion component 200 in Embodiment 4 has a boss 206, and the second side wall 202 of the main frequency conversion component 200 has a boss 207. The first end of the helical spring 403 of the first sub-frequency conversion component 300 is sleeved on the boss 206 and fixedly connected to the boss 206, and the first end of the helical spring 403 of the second sub-frequency conversion component 400 is sleeved on the boss 206 and fixedly connected to the boss 207.

[0068] In Figure 7Among them, the first end of the adjusting bolt 402 has an extension part 407 and a stop part 406 that extend outward along the radial direction. The diameter of the extension part 407 is smaller than that of the stop part 406. The second end of the helical spring 403 is sleeved on the extension part 407 and abuts against the stop part 406, and is fixedly connected to the stop part 406.

[0069] Embodiment 5

[0070] As Figure 8 shown, the first side wall 101 and the second side wall 102 of the bracket 100 have mounting holes 109, and fastening nuts 110 are welded in the mounting holes 109.

[0071] The first side wall 201 of the main frequency conversion component 200 has a boss 206 as shown, for example, Figure 7 in Figure 7 shown. The second side wall 202 of the main frequency conversion component 200 has a boss 207 as shown, for example, Figure 8 in

[0072] The first sub-frequency conversion component 300 and the second sub-frequency conversion component 400 include: an adjusting bolt 402 and a rubber cylinder 404.

[0073] The first end of the adjusting bolt 402 has an extension part 407 and a stop part 406 as shown, for example, Figure 7 in Figure 8 shown. The extension part 407 and the stop part 406 extend outward along the radial direction. The diameter of the extension part 407 is smaller than that of the stop part 406. The extension part 407 cannot be seen in

[0074] because it is blocked by the rubber cylinder 404. The interior of the rubber cylinder 404 is hollow. The outer peripheral wall of the rubber cylinder 404 has an arc-shaped groove 405 to increase the elasticity of the rubber cylinder 404, so that the rubber cylinder 404 located between the main frequency conversion component 200 and the first side wall 101 of the bracket 100 has a first predetermined elastic deformation amount, and the rubber cylinder 404 located between the main frequency conversion component 200 and the second side wall 102 of the bracket 100 has a second predetermined elastic deformation amount. The first end of the rubber cylinder 404 of the first sub-frequency conversion component 300 is sleeved on the boss 206 and is fixedly connected to the boss 206. The second end of the rubber cylinder 404 of the first sub-frequency conversion component 300 is sleeved on the extension part 407 of the first end of the adjusting bolt 402 and abuts against the stop part 406, and is fixedly connected to the stop part 406. The first end of the rubber cylinder 404 of the second sub-frequency conversion component 400 is sleeved on the boss 207. The second end of the rubber cylinder 404 of the first sub-frequency conversion component 300 is sleeved on the extension part 407 of the first end of the adjusting bolt 402 and abuts against the stop part 406, and is fixedly connected to the stop part 406.

[0075] That is, in Embodiment 5, both the first sub-frequency conversion component 300 and the second sub-frequency conversion component 400 are in the form of a rubber cylinder 404.

[0076] Embodiment 6

[0077] In Embodiment 6, both the first sub-frequency conversion component 300 and the second sub-frequency conversion component 400 are in the form of a U-shaped spring 310.

[0078] So far, three forms of the second sub-frequency conversion component 400 and the first sub-frequency conversion component 300 have been introduced, namely: U-shaped spring 310, helical spring 403, and rubber cylinder 404. The forms of the second sub-frequency conversion component 400 and the first sub-frequency conversion component 300 can be the same, for example, any one of the above four forms can be selected. The second sub-frequency conversion component 400 and the first sub-frequency conversion component 300 can also be in different forms, for example, any two of the above four forms can be selected.

[0079] For the convenience of explanation and to precisely define the appended claims, the terms "upper", "lower", "inner", "outer", "above", "below", "upper", "lower", "upward", "downward", "front", "rear", "behind", "inner side", "outer side", "inward", "outward", "inside", "outside", "internal", "external", "forward", "backward" are used to describe the features of the exemplary specific embodiments with reference to the positions of these features shown in the drawings.

[0080] The foregoing description of the specific exemplary embodiments of the present invention has been presented for purposes of illustration and description. The foregoing description is not intended to be exhaustive nor to limit the present invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described in order to explain the particular principles of the present invention and its practical application so that others skilled in the art may implement and utilize the various exemplary embodiments of the present invention and their various alternative forms and modifications. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A variable-frequency dynamic shock absorber for a vehicle, characterized in that, Comprising: A bracket having opposite first and second side walls of the bracket; A main frequency conversion component disposed within the bracket; And A first sub-frequency conversion component, one end of which is detachably connected to the first side wall of the bracket, and the other end of which is connected to the main frequency conversion component, the first sub-frequency conversion component having a first predetermined elastic deformation amount; A second sub-frequency conversion component, one end of which is detachably connected to the second side wall of the bracket, and the other end of which is connected to the main frequency conversion component, the second sub-frequency conversion component having a second predetermined elastic deformation amount.

2. The variable-frequency dynamic shock absorber for a vehicle according to claim 1, wherein, The first side wall of the bracket has two first mounting holes, and first fastening bolts are installed in the first mounting holes; The first sub-frequency conversion component includes: a first U-shaped spring and a first fastening nut; The first U-shaped spring has opposite first and second side walls of the U-shaped spring. The first side wall of the U-shaped spring of the first U-shaped spring is welded to the main frequency conversion component. The second side wall of the U-shaped spring of the first U-shaped spring has a first opening, and a second mounting hole is provided at a position of the second side wall of the U-shaped spring of the first U-shaped spring near the first opening; The first fastening nut is fixed at the second mounting hole of the first U-shaped spring, and the first fastening bolt can be screwed into the first fastening nut to connect the first U-shaped spring to the first side wall of the bracket.

3. The variable-frequency dynamic shock absorber for a vehicle according to claim 1, characterized in that, The first side wall of the bracket has a first mounting hole, and a first fastening nut is welded in the first mounting hole; The main frequency conversion component has a first side wall of the main frequency conversion component facing the first side wall of the bracket, and the first side wall of the main frequency conversion component has a threaded hole; The first sub-frequency conversion component includes: a first fastening bolt, a first adjustment bolt and a first helical spring; The first end of the first helical spring is fixedly connected to the first end of the first fastening bolt, and the second end of the first helical spring is fixedly connected to the first end of the first adjustment bolt; The second end of the first adjustment bolt is screwed into the first fastening nut on the first side wall of the bracket to connect the first sub-frequency conversion component to the first side wall of the bracket; The second end of the first fastening bolt is screwed into the threaded hole on the first side wall of the main frequency conversion component of the main frequency conversion component to connect the first sub-frequency conversion component to the main frequency conversion component.

4. The variable-frequency dynamic shock absorber for a vehicle according to claim 1, characterized in that, The first side wall of the bracket has a first mounting hole, and a first fastening nut is welded in the first mounting hole; The main frequency conversion component has a first side wall of the main frequency conversion component facing the first side wall of the bracket. The first side wall of the main frequency conversion component has a first boss, and a receiving hole is provided on the end face of the first boss; The first sub-frequency conversion component includes: a first adjustment bolt and a first helical spring; The first end of the first helical spring is inserted into the receiving hole of the first boss and fixedly connected to the first boss, and the second end of the first helical spring is fixedly connected to the first end of the first adjustment bolt; The second end of the first adjustment bolt is screwed into the first fastening nut on the first side wall of the bracket to connect the first sub-frequency conversion component to the first side wall of the bracket.

5. The variable-frequency dynamic shock absorber for a vehicle according to claim 1, wherein The first side wall of the bracket has a first mounting hole, and a first fastening nut is welded in the first mounting hole; The main frequency conversion component has a first side wall of the main frequency conversion component facing the first side wall of the bracket. The first side wall of the main frequency conversion component has a first boss; The first sub-frequency conversion component includes: a first adjustment bolt and a first helical spring; The first end of the first adjusting bolt has a first extension portion and a first stop portion that extend outward along the radial direction. The diameter of the first extension portion is smaller than the diameter of the first stop portion. The first end of the first helical spring is sleeved on the first boss and fixedly connected to the first boss. The second end of the first helical spring is sleeved on the first extension portion of the first end of the first adjusting bolt and abuts against the first stop portion, and is fixedly connected to the first stop portion. The second end of the first adjusting bolt is screwed into the first fastening nut on the first side wall of the bracket to connect the first sub-frequency conversion component to the first side wall of the bracket.

6. The variable-frequency dynamic shock absorber for a vehicle according to claim 1, characterized in that, The first side wall of the bracket has a first mounting hole, and a first fastening nut is welded in the first mounting hole. The main frequency conversion component has a first side wall of the main frequency conversion component facing the first side wall of the bracket, and the first side wall of the main frequency conversion component has a first boss. The first sub-frequency conversion component includes: a first adjusting bolt and a first rubber cylinder. The first end of the first adjusting bolt has a first extension portion and a first stop portion that extend outward along the radial direction. The diameter of the first extension portion is smaller than the diameter of the first stop portion. The interior of the first rubber cylinder is hollow, and the outer peripheral wall of the first rubber cylinder has an arc-shaped groove to increase the elasticity of the first rubber cylinder, so that the first rubber cylinder has a first predetermined elastic deformation amount. The first end of the first rubber cylinder is sleeved on the first boss and fixedly connected to the first boss. The second end of the first rubber cylinder is sleeved on the first extension portion of the first end of the first adjusting bolt and abuts against the first stop portion, and is fixedly connected to the first stop portion. The second end of the first adjusting bolt is screwed into the first fastening nut on the first side wall of the bracket to connect the first sub-frequency conversion component to the first side wall of the bracket.

7. The variable-frequency dynamic shock absorber for a vehicle according to any one of claims 2-6, characterized in that, The second side wall of the bracket has two third mounting holes, and second fastening bolts are installed in the third mounting holes. The second sub-frequency conversion component includes: a second U-shaped spring and a second fastening nut. The second U-shaped spring has opposite first side wall of the U-shaped spring and second side wall of the U-shaped spring. The first side wall of the U-shaped spring of the second U-shaped spring is welded to the main frequency conversion component, and the second side wall of the U-shaped spring of the second U-shaped spring has a second opening. A fourth mounting hole is provided at a position of the second side wall of the U-shaped spring of the second U-shaped spring near the second opening. The second fastening nut is fixed at the fourth mounting hole of the second U-shaped spring, and the second fastening bolt can be screwed into the second fastening nut to connect the second U-shaped spring to the second side wall of the bracket.

8. The variable-frequency dynamic shock absorber for a vehicle according to any one of claims 2-6, characterized in that, The second side wall of the bracket has a third mounting hole, and a second fastening nut is welded in the third mounting hole. The main frequency conversion component has a second side wall of the main frequency conversion component facing the second side wall of the bracket, and the second side wall of the main frequency conversion component has a threaded hole. The second sub-frequency conversion component includes: a second fastening bolt, a second adjusting bolt and a second helical spring. The first end of the second helical spring is fixedly connected to the first end of the second fastening bolt, and the second end of the second helical spring is fixedly connected to the first end of the second adjusting bolt. The second end of the second adjusting bolt is screwed into the second fastening nut on the second side wall of the bracket to connect the second sub-frequency conversion component to the second side wall of the bracket. The second end of the second fastening bolt is screwed into the threaded hole on the second side wall of the main frequency conversion component of the main frequency conversion component, so as to connect the second sub-frequency conversion component to the main frequency conversion component.

9. The variable-frequency dynamic shock absorber for a vehicle according to any one of claims 2-6, characterized in that The second side wall of the bracket has a third mounting hole, and a second fastening nut is welded in the third mounting hole; The main frequency conversion component has a second side wall of the main frequency conversion component facing the second side wall of the bracket. The second side wall of the main frequency conversion component has a second boss, and the end face of the second boss has a receiving hole; The second sub-frequency conversion component includes: a second adjustment bolt and a second helical spring; The first end of the second helical spring is inserted into the receiving hole of the second boss and fixedly connected to the second boss. The second end of the second helical spring is fixedly connected to the first end of the second adjustment bolt; The second end of the second adjustment bolt is screwed into the second fastening nut on the second side wall of the bracket, so as to connect the second sub-frequency conversion component to the second side wall of the bracket.

10. The variable-frequency dynamic shock absorber for a vehicle according to any one of claims 2-6, characterized in that, The second side wall of the bracket has a third mounting hole, and a second fastening nut is welded in the third mounting hole; The main frequency conversion component has a second side wall of the main frequency conversion component facing the second side wall of the bracket. The second side wall of the main frequency conversion component has a second boss; The first sub-frequency conversion component includes: a second adjustment bolt and a second helical spring; The first end of the second adjustment bolt has a second extension part and a second stop part extending outward along the radial direction. The diameter of the second extension part is smaller than the diameter of the second stop part; The first end of the second helical spring is sleeved on the second boss and fixedly connected to the second boss. The second end of the second helical spring is sleeved on the second extension part of the first end of the second adjustment bolt and abuts against the second stop part, and is fixedly connected to the second stop part; The second end of the second adjustment bolt is screwed into the second fastening nut on the second side wall of the bracket, so as to connect the second sub-frequency conversion component to the second side wall of the bracket.

11. The variable-frequency dynamic shock absorber for a vehicle according to any one of claims 2-6, characterized in that, The second side wall of the bracket has a third mounting hole, and a second fastening nut is welded in the third mounting hole; The main frequency conversion component has a second side wall of the main frequency conversion component facing the second side wall of the bracket. The second side wall of the main frequency conversion component has a second boss; The second sub-frequency conversion component includes: a second adjustment bolt and a second rubber cylinder; The first end of the second adjustment bolt has a second extension part and a second stop part extending outward along the radial direction. The diameter of the second extension part is smaller than the diameter of the second stop part; The interior of the second rubber cylinder is hollow, and the outer peripheral wall of the second rubber cylinder has an arc-shaped groove to increase the elasticity of the second rubber cylinder, so that the second rubber cylinder has a second predetermined elastic deformation amount. The first end of the second rubber cylinder is sleeved on the second boss and fixedly connected to the second boss. The second end of the second rubber cylinder is sleeved on the second extension part of the first end of the second adjustment bolt and abuts against the second stop part, and is fixedly connected to the second stop part; The second end of the second adjustment bolt is screwed into the second fastening nut on the second side wall of the bracket, so as to connect the second sub-frequency conversion component to the second side wall of the bracket.

Images