CN220764014U - Stabilizer bar link assembly and vehicle suspension - Google Patents

Abstract

The present application belongs to the field of vehicle technology, and solves the problem that the torsional stiffness of the stabilizer bar in the existing vehicle suspension cannot be adjusted with the change of working conditions. A stabilizer bar connecting rod assembly and vehicle suspension are provided, wherein the stabilizer bar connecting rod assembly includes a damping master cylinder, a cylinder head, a connecting rod, a valve body and a first limiting structure, wherein the cylinder head is encapsulated in the cylinder chamber of the damping master cylinder and seals the open end of the cylinder chamber; the connecting rod is slidably connected to the damping master cylinder, the valve body is fixed to the first connecting end of the connecting rod accommodated in the cylinder chamber, and slides against the inner wall of the cylinder chamber; the first limiting structure is fixed to the connecting rod and is located between the valve body and the cylinder head. The beneficial effects of the present application are: the damping size and the length of the stabilizer bar connecting rod assembly are variable, and the adjustable stiffness of the equivalent stabilizer bar system is realized to meet the performance requirements of the vehicle under complex road conditions; the first limiting structure limits the extension limit of the connecting rod, which can prevent the valve body from rigidly abutting against the cylinder head, thereby improving the reliability and service life of the assembly.

Description

Stabilizer bar connecting rod assembly and vehicle suspension

Technical Field

The application relates to the technical field of vehicles, in particular to a stabilizer bar connecting rod assembly and a vehicle suspension.

Background

The stabilizer bar is an auxiliary elastic element in the automobile suspension, also called a stabilizer bar, and mainly has the effects of preventing the automobile body from rolling and keeping the balance of the automobile body. The torsional rigidity of the stabilizer bar affects the stability and comfort of the vehicle operation, and is one of the main adjusting components in the chassis adjusting category.

In the actual use process of the vehicle, the torsion rigidity of the stabilizer bar in the initial stage is expected to be smaller, the torsion rigidity of the stabilizer bar in the second half can be quickly improved, and the stabilizer bar has larger torsion energy storage capacity, so that the stability and the comfortableness of the vehicle under the working conditions of complex road surfaces, particularly hollow road surfaces and the like, are met. However, in the prior art, the torsional rigidity of the stabilizer bar is basically a constant value, and the roll rigidity curve is nearly linear and cannot be adjusted independently along with the change of the working condition of the vehicle, so that the control stability and the comfort of the vehicle under the complex road condition are restricted.

Accordingly, improvements in stabilizer bar structures and suspension systems of existing vehicles are needed to address the above-described issues.

Disclosure of Invention

In order to solve the technical problem, the application provides a stabilizer link assembly and a vehicle suspension, wherein the stabilizer link assembly is a connecting medium of a cantilever structure of a stabilizer and the vehicle suspension, and the damping size of the stabilizer link assembly can be changed along with the expansion and contraction change of a connecting rod compared with a damping master cylinder, so that the function of adjusting the rigidity of an equivalent stabilizer link system is realized, and the performance requirement under the condition of a complex road surface of a vehicle is met.

To solve the above technical problem, in one aspect of the present application, there is provided a stabilizer bar and connecting rod assembly, which includes a damping master cylinder, a cylinder cover, a connecting rod, a valve body, and a first limiting structure, wherein the damping master cylinder has a cylinder chamber for storing damping fluid, the cylinder chamber having an open end and a closed end which are disposed opposite to each other; the cylinder cover is encapsulated in the cylinder chamber and seals the opening end; the connecting rod is connected with the damping master cylinder in a sliding manner, and comprises a first connecting end accommodated in the cylinder chamber and a second connecting end extending out of the cylinder chamber; the valve body is fixedly arranged at the first connecting end and is in sliding propping with the inner wall of the cylinder chamber; the first limiting structure is fixedly arranged on the connecting rod and is positioned between the valve body and the cylinder cover.

In some embodiments, the stabilizer link assembly further includes a second limiting structure, where the second limiting structure is fixedly disposed on the link and is located between the cylinder cover and the second connection end; the distance between the second limiting structure and the end face of the first connecting end is smaller than the cavity depth of the cylinder chamber.

In some embodiments, the first and second spacing structures are identical in construction and each include a soft buffer portion; the first limiting structure and the second limiting structure are installed on the connecting rod at intervals, and the soft buffering portions are all arranged towards the cylinder cover.

In some embodiments, the first limit structure has an outer diameter that is less than an outer diameter of the valve body; or the first limiting structure is in sliding abutment with the inner wall of the cylinder chamber, and the damping liquid flow passage is arranged on the first limiting structure.

In some embodiments, the first limiting structure comprises a hard base portion, a soft buffer portion and an excessive groove, wherein the hard base portion is fixedly connected to the connecting rod; the soft buffer part is fixedly connected to the hard base part and can displace and deform compared with the connecting rod; the transition groove and the soft buffer part are of an integrated structure, and the transition groove is positioned between the hard base part and the soft buffer part and is used for providing transition space for displacement and deformation for the soft buffer part.

In some embodiments, the stabilizer link assembly further includes an oil seal sealingly disposed between the open end of the cylinder chamber, the cylinder head, and the link for preventing escape of the damping fluid from the cylinder chamber.

In some embodiments, the stabilizer link assembly further includes a ball stud assembly fixedly connected to the second connecting end and the closed end, respectively.

In some embodiments, each of the ball stud assemblies includes a ball seat with a ball cavity thereon, a dust cap, and a ball stud; the ball seat is fixedly connected with the second connecting end and the closed end respectively; the dust cover is sleeved with the ball seat and covers the ball cavity; the ball stud comprises a ball head portion and a pin portion connected with the ball head portion, wherein the ball head portion is accommodated in the ball head cavity to form a spherical kinematic pair, and the pin portion penetrates through the ball head cavity and extends to extend out of the dust cover.

In some embodiments, the closed end extends away from the cylinder chamber and has a connecting rod portion, the axes of the connecting rod portion, the cylinder chamber and the connecting rod are coincident, and the ball pin assembly is fixedly connected to the second connecting end and the connecting rod portion, respectively.

In order to solve the above problems, the present application provides a vehicle suspension, which includes a stabilizer bar and a cantilever structure, and the stabilizer bar connecting rod assembly, wherein the stabilizer bar connecting rod assembly is movably connected to the stabilizer bar and the cantilever structure.

The beneficial effects of this application are:

the application provides a stabilizer bar connecting rod assembly, including damping master cylinder, cylinder cap, connecting rod and the valve body that have the jar room. The cylinder chamber is internally provided with damping liquid, the cylinder cover is encapsulated at the opening end of the cylinder chamber, and the connecting rod is connected with the damping master cylinder in a sliding way. The first connecting end of the connecting rod is fixedly connected with a valve body, and the valve body is positioned in the cylinder chamber and slides against the inner wall of the cylinder chamber. In the actual use process of the vehicle, the connecting rod can stretch out and draw back in comparison with the damping master cylinder, the flow of damping liquid in the cylinder chamber is limited through the valve body in the process, the damping size of the stabilizer bar connecting rod assembly is changed, the length of the stabilizer bar connecting rod assembly is correspondingly changed, the function of adjusting the rigidity of the equivalent stabilizer bar system is realized, and the performance requirement under the complex road surface working condition of the vehicle is met.

In addition, the first limiting structure is fixedly arranged at the first connecting end of the connecting rod of the stabilizer rod connecting rod assembly, wherein the first limiting structure is positioned between the valve body and the cylinder cover, and the extending limit of the connecting rod can be limited through the first limiting structure in the actual use process, so that the connecting rod is prevented from being axially separated from the damping master cylinder, and the extending limiting effect of the connecting rod is achieved; simultaneously, this first limit structure also can prevent that the connecting rod from stretching out in-process valve body and directly rigidly support the cylinder cap, has played the effect of protection valve body, has improved the reliability in use and the life of this application stabilizer bar connecting rod assembly.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort to a person of ordinary skill in the art, in which:

FIG. 1 is a schematic view of the overall construction of the stabilizer bar linkage assembly of the present application;

FIG. 2 is a schematic cross-sectional view of the overall structure of the connecting rod of the present application in a fully extended state;

FIG. 3 is an enlarged schematic view of the partial structure of FIG. 2;

FIG. 4 is a schematic cross-sectional view of the overall structure of the stabilizer bar of the present application in a collapsed to extreme condition;

FIG. 5 is an enlarged schematic view of the partial structure of FIG. 4;

FIG. 6 is a schematic view of the overall structure of the limit structure of the present application;

FIG. 7 is a schematic view of the ball stud assembly of the present application with the ball mount attached to the damping master cylinder;

FIG. 8 is a schematic view of a dust cap structure of a ball stud assembly of the present application;

FIG. 9 is a schematic view of a ball stud structure of the ball stud assembly of the present application;

FIG. 10 is a schematic structural view of the stabilizer bar linkage assembly of the present application attached to a vehicle suspension;

wherein: 1. a damping master cylinder, 11, a cylinder chamber, 12, an open end, 13, a closed end, 14, a connecting rod portion, 2, a cylinder head, 3, a connecting rod, 31, a first connecting end, 32, a second connecting end, 4, a valve body, 5, a limiting structure, 501, a hard base portion, 502, an excess groove, 503, a soft cushioning portion, 504, a connecting rod via hole, 51, a first limiting structure, 52, a second limiting structure, 6, an oil seal, 7, a ball pin assembly, 71, a ball seat, 711, a ball cavity, 712, a clamping groove, 72, a dust cover, 721, a protective cavity, 722, a clamp opening, 723, a pin via hole, 73, a ball pin, 731, a ball head, 732, a pin portion, 8, a front spool, 9, and a stabilizer bar.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Referring to fig. 1 to 3, the present application provides a stabilizer link assembly including a damper master cylinder 1, a cylinder head 2, a link 3, a valve body 4, and a stopper structure 5, wherein the damper master cylinder 1 is a cylindrical structure having a cylinder chamber 11 for storing a damping fluid (not shown), the cylinder chamber 11 having an open end 12 and a closed end 13 disposed opposite to each other. The cylinder head 2 has an end cap structure, is sealed to the cylinder chamber 11 of the master cylinder 1, and seals the open end 12 of the cylinder chamber 11. The connecting rod 3 has a long rod-like structure and is slidably connected to the master cylinder 1 coaxially, and the connecting rod 3 includes a first connection end 31 accommodated in the cylinder chamber 11 and a second connection end 32 protruding to be exposed to the cylinder chamber 11. In cooperation, a cylinder cover center hole (not numbered) for movably extending the connecting rod 3 is arranged in the middle of the cylinder cover 2. The valve body 4 is fixedly arranged at the first connecting end 31 of the connecting rod 3 and slides against the inner wall of the cylinder chamber 11.

Specifically, a valve (not shown) for flowing the damping fluid in the cylinder chamber 11 is arranged on the valve body 4, when the connecting rod 3 slowly stretches and contracts in comparison with the damping master cylinder 1, the first connecting end 31 of the connecting rod slowly pushes the damping fluid in the cylinder chamber 11 through the valve body 4, in the process, the damping fluid can smoothly flow through the valve of the valve body 4, and the damping of the stabilizer rod and connecting rod assembly is smaller; when the connecting rod 3 is in rapid telescopic movement compared with the damping master cylinder 1, the first connecting end 31 of the connecting rod rapidly pushes damping liquid in the cylinder chamber 11 through the valve body 4, and in the process, the valve is activated to block the damping liquid from flowing through, so that the damping of the stabilizing rod connecting rod assembly is increased.

The limit structure 5 of the stabilizer bar connecting rod assembly is used for limiting the limit of the extension and contraction of the connecting rod 3 compared with the damping main cylinder 1, and specifically comprises a first limit structure 51 used for limiting the limit of the extension length of the connecting rod 3 compared with the damping main cylinder 1, wherein the first limit structure 51 is fixedly arranged on the connecting rod 3 and is located between the valve body 4 and the cylinder cover 2. When the connecting rod 3 is extended to the first limit structure 51 to abut against the cylinder cover 2 compared with the damping master cylinder 1, the connecting rod 3 cannot extend continuously, and the effect of limiting the extending limit of the connecting rod 3 is achieved. Meanwhile, as the first limit structure 51 of the damping connecting rod 3 is positioned between the valve body 4 and the cylinder cover 2, when the connecting rod 3 stretches out to the stretching out limit position, the first limit structure 51 props against the cylinder cover 2 before the valve body 4, thereby avoiding the valve body 4 fault caused by the direct hard propping against of the valve body 4 against the cylinder cover 2, and improving the use reliability and the service life of the valve body 4.

The stabilizer bar and connecting rod assembly is an intermediate medium for connecting a stabilizer bar with a cantilever structure of a suspension system, the damping size of the stabilizer bar and connecting rod assembly is changed according to the change of the extending and contracting movement speed of a connecting rod 3 relative to a damping main cylinder 1, the slower the extending and contracting speed of the connecting rod 3 is, the smaller the generated damping is, the smaller the rigidity of the equivalent stabilizer bar system is, and the stabilizer bar assembly is suitable for the working condition of a flat road surface of a vehicle; the faster the connecting rod 3 stretches out and draws back, the greater the damping that produces, the rigidity of equivalent stabilizer bar system becomes great, adapts to vehicle pothole road surface operating mode. Moreover, the length of the stabilizer bar connecting rod assembly is changed in the telescopic process of the damping master cylinder 1 by the connecting rod 3, so that the self-adaptive adjusting function of the equivalent stabilizer bar torsional rigidity of the vehicle suspension can be realized through the stabilizer bar connecting rod assembly, the performance requirements of the vehicle under different road conditions can be met, and the stability and the comfort of vehicle control can be improved.

Referring to fig. 4 to 5, in one embodiment of the stabilizer link assembly of the present application, the limiting structure 5 further includes a second limiting structure 52, and the second limiting structure 52 is fixedly connected to the link 3 and located between the cylinder cover 2 and the second connecting end 32. Wherein, the distance between the second limiting structure 52 and the end surface of the first connecting end 31 is smaller than the cavity depth of the cylinder chamber 11. Therefore, in the shrinkage process of the connecting rod 3 compared with the damping master cylinder 1, the second limiting structure 52 can be propped against the cylinder cover 2 before the end face of the first connecting end 31 is propped against the bottom of the cavity of the cylinder chamber 11, so that the second connecting end 32 of the connecting rod 3 is prevented from directly and rigidly propping against the bottom of the cavity of the damping master cylinder 1, the effect that the limiting connecting rod 3 is compared with the shrinkage limit of the damping master cylinder 1 is achieved, the cylinder chamber 11 of the damping master cylinder 1 is protected, the abrasion of the damping master cylinder 1 can be reduced, and the service life of the damping master cylinder 1 is prolonged.

Referring to fig. 3, 5 and 6, as a preferred embodiment of the stabilizer link assembly of the present application, the first and second stopper structures 51 and 52 have the same structure and each include a soft buffer portion 503. The first limiting structure 51 and the second limiting structure 52 are installed on the connecting rod 3 at intervals, and the soft buffer parts 503 are all arranged towards the cylinder cover 2.

The soft buffer part 503 is made of non-rigid material, has certain elasticity, and can displace and deform compared with the connecting rod 3, thereby achieving the functions of buffering and damping. The soft buffer parts 503 on the first limit structure 51 and the second limit structure 52 are both arranged towards the cylinder cover 2, and when the connecting rod 3 is extended to the extension displacement limit compared with the damping main cylinder 1, the soft buffer parts 503 of the first limit structure 51 elastically prop against the inner wall of the cylinder cover 2; when the connecting rod 3 is contracted to the contraction displacement limit thereof as compared with the master cylinder 1, the soft buffer portion 503 of the second limiting structure 52 abuts against the outer wall of the cylinder head 2.

The cylinder cap 2 not only plays the effect of spacing connecting rod 3 axial connection damping master cylinder 1, and it is the sealed end cover of jar room 11, plays the effect of shutoff damping fluid, and this application first limit structure 51 and second limit structure 52 all support cylinder cap 2 through soft buffer 503, have played the effect of buffering, protection cylinder cap 2, have avoided limit structure 5 direct hard support cylinder cap 2 to the harm that causes it, have improved the reliability of the open end 12 fixed connection of cylinder cap 2 and jar room 11, have improved the life of this application stabilizer bar connecting rod assembly.

More specifically, referring to fig. 6, in one embodiment of the stabilizer link assembly of the present application, the first and second stop structures 51 and 52 each further include a rigid base portion 501 and an excess groove 502. The hard base 501 is fixedly connected to the link 3, preferably made of metal, and is connected to the link 3 by welding. The soft buffer portion 503 is preferably made of rubber, and one end is fixedly connected to the hard base portion 501 by a heat fixing manner, and the main body portion of the soft buffer portion 503 after fixing can be displaced and deformed compared with the connecting rod 3. The transition groove 502 and the soft buffer portion 503 are made of the same material, and are integrally formed, and the transition groove 502 is located between the hard base portion 501 and the soft buffer portion 503, so as to provide an excessive space for displacement and deformation of the soft buffer portion 503. Therefore, when the connecting rod 3 is extended to the extension limit position compared with the damping master cylinder 1, the soft buffer portion 503 of the first limiting structure 51 abuts against the inner wall of the cylinder cover 2, and is displaced and deformed to a certain extent within the space tolerance range corresponding to the transition groove 502, so as to play a role in buffering and damping. When the connecting rod 3 is contracted to the contraction limit position compared with the damping master cylinder 1, the soft buffer part 503 of the second limiting structure 52 abuts against the outer wall of the cylinder cover 2, and displacement and deformation to a certain extent occur within the space tolerance range corresponding to the transition groove 502, so that the effects of buffering and damping are achieved.

Specifically, the hard base portion 501, the transition groove 502 and the soft buffer portion 503 of the limiting structure 5 are arranged to be of a cylindrical structure connected coaxially, the connecting rod through holes 504 used for sleeving the connecting rods 3 are penetratingly arranged at the axes of the hard base portion 501, the transition groove 502 and the soft buffer portion 503, and during actual assembly, the limiting structure 5 is sleeved on the corresponding position of the connecting rods 3 through the connecting rod through holes 504, and then the hard base portion 501 of the limiting structure 5 is welded and fixed with the connecting rods 3 in a welded and fixed mode.

It should be understood that, in other embodiments, only any one of the second limiting structure 52 and the first limiting structure 51 of the limiting structure 5 may be provided with the soft buffer portion 503.

Referring to fig. 4, in one embodiment of the stabilizer link assembly of the present application, the valve body 4 is slidably abutted against the inner wall of the cylinder chamber 11, and the outer diameter of the first limiting structure 51 is smaller than the outer diameter of the valve body 4, so that a certain gap is reserved between the first limiting structure 51 and the inner wall of the cylinder chamber 11, and the first limiting structure 51 is prevented from completely preventing the damping fluid in the cylinder chamber 11 from flowing on two sides of the axial direction of the valve body 4, so that the normal operation of the stabilizer link assembly of the present application is ensured.

Of course, in other embodiments, the outer diameter of the first limiting structure 51 may be designed to match the outer diameter of the valve body 4, so that the first limiting structure 51 can also slide against the inner wall of the cylinder chamber 11, where a damping fluid channel (not shown) for damping fluid flowing through the valve body 4 is required to be provided on the first limiting structure 51, which axially penetrates the body thereof. In contrast, when the outer diameter of the first limiting structure 51 is smaller than the outer diameter of the valve body 4, a gap between the outer wall of the first limiting structure 51 and the inner wall of the cylinder chamber 11 corresponds to a damping fluid flow path.

This limit structure 5 passes through stereoplasm base portion 501 and connecting rod 3 fixed connection, supports cylinder cap 2 through soft buffer portion 503 elasticity, provides the excessive space of displacement and deformation for soft buffer portion 503 through excessive groove 502, can effectively protect cylinder cap 2, has guaranteed the reliability that cylinder cap 2 and jar room 11 open end 12 are connected, has improved the reliability of this application stabilizer bar connecting rod assembly operation, has improved its life.

Referring to fig. 2 to 5, in one embodiment of the stabilizer link assembly of the present application, the stabilizer link assembly further includes an oil seal 6, and the oil seal 6 is sealingly disposed between the open end 12 of the cylinder chamber 11, the inner wall of the cylinder cover 2 and the link 3, and in actual use, damping fluid in the damping master cylinder 1 is prevented from overflowing from the open end 12 of the cylinder chamber 11 by the oil seal 6, so that the sealing effect is good, and stable operation of the stabilizer link assembly is ensured.

Referring to fig. 1 and 7-9, the stabilizer link assembly of the present application further includes two ball stud assemblies 7 for connecting the cantilever structure of the vehicle. Wherein, two ball pin assemblies 7 are respectively fixedly connected to the second connecting end 32 of the connecting rod 3 and the closed end 13 of the damping master cylinder 1.

Specifically, each ball pin assembly 7 includes a ball seat 71, a dust cover 72, and a ball pin 73, wherein the ball seat 71 is fixedly connected to the second connecting end 32 of the connecting rod 3 or the closed end 13 of the damping master cylinder 1, and a ball cavity 711 is provided on the ball seat 71. The dust cover 72 is sleeved on the ball seat 71 and covers the ball cavity 711. The ball stud 73 includes a ball head 731 and a pin 732 connected to the ball head 731, wherein the ball head 731 is matingly received in the ball head cavity 711 of the ball head seat 71 to form a spherical kinematic pair, and the pin 732 passes through the ball head cavity 711 and extends to protrude from the dust cover 72.

Specifically, a clamping groove 712 is circumferentially provided around the opening periphery of the ball head cavity 711 of the ball head seat 71.

Specifically, the dust cover 72 has a protection cavity 721, two ends of the dust cover 72 are correspondingly provided with a collar 722 and a pin via 723 communicated with the protection cavity 721, and the collar 722 of the dust cover 72 is correspondingly sleeved with the collar slot 712, and is preferably locked and fixed by a collar (not shown); the pin through hole 723 of the dust cap 72 is correspondingly communicated with the ball head cavity 711, and when the ball head 731 of the ball pin 73 is correspondingly assembled to the ball head cavity 711 of the ball head seat 71, the pin portion 732 of the ball pin 73 protrudes out of the dust cap 72 through the pin through hole 723.

Specifically, the ball head seat 71 on the connecting rod 3 has a ball head cavity 711 opposite to the ball head cavity 711 of the ball head seat 71 on the damping master cylinder 1, so that the pin portions 732 of the two ball pins 73 at two ends of the assembled stabilizer link assembly face opposite directions, and the maximum swing angle of the stabilizer link assembly after being connected to the stabilizer and the cantilever structure of the suspension system is ensured.

Referring to fig. 7, in one embodiment of the stabilizer link assembly of the present application, the closed end 13 further extends with a connecting rod portion 14 in a direction away from the cylinder chamber 11, and axes of the connecting rod portion 14, the cylinder chamber 11, and the link 3 overlap, and the ball pin assembly 7 is fixedly connected to the second connecting end 32 and the connecting rod portion 14, respectively.

Referring to fig. 10, the present application also provides a vehicle suspension comprising a stabilizer bar 9, a cantilever structure and a stabilizer bar linkage assembly, wherein the stabilizer bar linkage assembly is as described above, and the stabilizer bar linkage assembly is movably connected to the stabilizer bar 9 and the cantilever structure.

Specifically, the stabilizer link assembly may be connected to the stabilizer bar 9 and the suspension arm structure of the suspension system through ball pin assemblies 7 at two ends, and in a specific embodiment, referring to fig. 10, the suspension arm structure includes a front strut 8, and the ball pin assemblies 7 are movably connected to the stabilizer bar 9 and the front strut 8, respectively. It should be noted that, in the present embodiment, the front strut 8 connected to the cantilever structure is only described as an example, and in other embodiments, one end of the stabilizer link assembly may be connected to other components of the cantilever structure.

In the actual use process, under the effect of the spherical kinematic pair of the ball pin assembly 7, the two ends of the stabilizer link assembly can swing in multiple directions compared with the transverse stabilizer bar 9 and the front sliding column 8, so that the torsion change of the transverse stabilizer bar 9 and the angle change of a cantilever structure of a suspension system under different self-adaptive working conditions of the stabilizer link assembly are ensured, the connection reliability of the stabilizer link assembly, the transverse stabilizer bar 9 and the front sliding column 8 is ensured, and the control stability and the comfort of a vehicle under different working conditions are further improved.

The stabilizer bar connecting rod assembly that this application provided is connected between the cantilever structure of stabilizer bar and vehicle suspension, utilizes the changeable characteristic of damping of stabilizer bar connecting rod assembly, has realized the self-adaptation regulatory function of the equivalent stabilizer bar torsional rigidity of vehicle suspension, can satisfy the performance demand under the different road conditions of vehicle, can promote the stability and the travelling comfort that the vehicle was controlled.

The foregoing is only the embodiments of the present application, and therefore, the scope of protection of the present application is not limited by the embodiments, and all equivalent structures or equivalent processes using the descriptions and the contents of the present application or other related technical fields are included in the patent protection scope of the present application directly or indirectly.

Claims (10)

1. A stabilizer link assembly, comprising:

a damping master cylinder (1), the damping master cylinder (1) having a cylinder chamber (11) for storing a damping fluid, the cylinder chamber (11) having an open end (12) and a closed end (13) disposed opposite each other;

a cylinder head (2), the cylinder head (2) being enclosed in the cylinder chamber (11) and sealing the open end (12);

the connecting rod (3), the connecting rod (3) is connected to the damping master cylinder (1) in a sliding manner, and the connecting rod (3) comprises a first connecting end (31) which is accommodated in the cylinder chamber (11) and a second connecting end (32) which extends out and is exposed out of the cylinder chamber (11);

the valve body (4) is fixedly arranged at the first connecting end (31) and is in sliding abutting contact with the inner wall of the cylinder chamber (11);

the first limiting structure (51) is fixedly arranged on the connecting rod (3) and is positioned between the valve body (4) and the cylinder cover (2).

2. The stabilizer bar connecting rod assembly according to claim 1, further comprising a second limiting structure (52), wherein the second limiting structure (52) is fixedly arranged on the connecting rod (3) and is positioned between the cylinder cover (2) and the second connecting end (32); wherein,

the distance between the second limiting structure (52) and the end face of the first connecting end (31) is smaller than the cavity depth of the cylinder chamber (11).

3. The stabilizer link assembly according to claim 2, characterized in that the first limit structure (51) and the second limit structure (52) are identical in construction, each comprising a soft buffer portion (503); wherein,

the first limiting structure (51) and the second limiting structure (52) are installed on the connecting rod (3) at intervals, and the soft buffering parts (503) are all arranged towards the cylinder cover (2).

4. The stabilizer bar linkage assembly according to claim 1, characterized in that the outer diameter of the first limit structure (51) is smaller than the outer diameter of the valve body (4); or alternatively

The first limiting structure (51) is in sliding abutment with the inner wall of the cylinder chamber (11), and a damping liquid flow passage is arranged on the first limiting structure (51).

5. The stabilizer bar linkage assembly according to claim 1, characterized in that the first limit structure (51) comprises:

a hard base portion (501), wherein the hard base portion (501) is fixedly connected to the connecting rod (3);

a soft buffer part (503), wherein the soft buffer part (503) is fixedly connected to the hard base part (501), and the soft buffer part (503) can displace and deform compared with the connecting rod (3);

and an excessive groove (502), wherein the excessive groove (502) and the soft buffer part (503) are in an integral structure, and the excessive groove (502) is positioned between the hard base part (501) and the soft buffer part (503) and is used for providing an excessive space for displacement and deformation for the soft buffer part (503).

6. The stabilizer bar linkage assembly according to claim 1, further comprising an oil seal (6), said oil seal (6) being sealingly arranged between the open end (12) of the cylinder chamber (11), the cylinder head (2) and the linkage (3) for preventing the damping fluid from escaping from the cylinder chamber (11).

7. The stabilizer bar linkage assembly according to claim 1, further comprising:

the ball pin assembly (7), the ball pin assembly (7) is fixedly connected with the second connecting end (32) and the closed end (13) respectively.

8. The stabilizer bar linkage assembly according to claim 7, characterized in that each ball stud assembly (7) comprises:

a ball head seat (71), wherein a ball head cavity (711) is arranged on the ball head seat (71); the ball seat (71) is fixedly connected with the second connecting end (32) and the closed end (13) respectively;

a dust cover (72), wherein the dust cover (72) is sleeved with the ball seat (71) and covers the ball cavity (711);

a ball stud (73), the ball stud (73) comprising a ball portion (731) and a pin portion (732) connecting the ball portion (731), wherein

The ball head portion (731) is accommodated in the ball head cavity (711) to constitute a spherical kinematic pair, and the pin portion (732) passes through the ball head cavity (711) and extends to protrude from the dust cover (72).

9. The stabilizer bar connecting rod assembly according to claim 8, characterized in that the closed end (13) extends to a direction away from the cylinder chamber (11) and is provided with a connecting rod portion (14), the axes of the connecting rod portion (14), the cylinder chamber (11) and the connecting rod (3) are coincident, and the ball pin assembly (7) is fixedly connected to the second connecting end (32) and the connecting rod portion (14) respectively.

10. A vehicle suspension comprising a transverse stabilizer bar (9) and a cantilever structure, and a stabilizer bar linkage assembly according to any one of claims 1-9, said stabilizer bar linkage assembly being movably connected to said transverse stabilizer bar (9) and cantilever structure.