Light vehicle suspension component
By combining rigid metal bushings and flexible sleeves between the anti-roll bar and the frame, and utilizing universal joints to achieve multi-directional movement, the problem of bushing stiffness reduction in multiple directions is solved, extending service life and improving connection flexibility and comfort.
Patent Information
- Application Number
- CN202512014958.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-02-03
AI Technical Summary
The bushings between the existing anti-roll bars and the frame cannot swing freely in multiple directions, resulting in decreased stiffness, loss of elasticity, shortened service life, and abnormal noise or weakened roll suppression effect during vehicle operation.
The first and second flexible sleeves are covered by rigid metal bushings and connected to the frame through universal joints, allowing the anti-roll bar to move relative to each other in multiple directions. The flexible sleeves made of polyurethane absorb small displacements, and the universal joints enable multi-angle rotation and power transmission.
It extends the service life of the bushing assembly, reduces wear and molecular chain breakage, optimizes the balance between roll control and comfort, avoids stress concentration and abnormal noise, and improves the flexibility and durability of the connection.
Smart Images
Figure CN121448071A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of vehicle suspension components, in particular to a light vehicle suspension component. BACKGROUND
[0002] The vehicle suspension system is a key component connecting the vehicle body and the wheels, and its core function is to buffer road impact, transmit force and improve ride comfort and handling stability. The suspension system is composed of multiple components; the anti-roll bar, also known as the transverse stabilizer, is an important auxiliary elastic element in the automobile suspension system; the anti-roll bar is usually in the shape of "U" and is composed of a U-shaped metal connecting rod, which connects the two sides of the suspension. The middle part of the rod is hinged to the frame through a sleeve, and the two ends of the rod are fixed on the left and right suspensions; the anti-roll bar is usually made of spring steel, which has high elasticity and torsional strength.
[0003] The anti-roll bar (stabilizer) is commonly connected to the frame through a bushing, which is a common engineering design. Its core function is to isolate vibration, reduce wear and allow the anti-roll bar to twist freely. However, this connection method has some shortcomings in actual use, for example; in fact, the anti-roll bar is slightly swinging in multiple directions, and the bushing cannot satisfy the anti-roll bar to freely swing in multiple directions. The core of the bushing design is to achieve stable support and controllable deformation through elastic buffering, therefore, under the influence of the anti-roll bar torsional force and frame vibration for a long time, the rubber molecular chain will gradually break, resulting in a decrease in hardness and loss of elasticity (i.e. "creep"), after the bushing becomes soft, a gap appears between the anti-roll bar and the frame, which produces an abnormal noise or reduces the roll suppression effect when cornering. In short, the bushing cannot guarantee its service life under the action of force in multiple directions, therefore, the present application designs a light vehicle suspension component. SUMMARY
[0004] The purpose of the present application is to solve the problems mentioned in the background art, and to provide a light vehicle suspension component.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a light vehicle suspension component, comprising an anti-roll bar, both ends of the anti-roll bar are connected with a bushing assembly, the bushing assembly comprises a hard metal bushing sleeved on the outer wall of the anti-roll bar, the inner and outer walls of the hard metal bushing are respectively provided with a first flexible sleeve and a second flexible sleeve, the first flexible sleeve is wrapped on the outer wall of the hard metal bushing, and the second flexible sleeve is located between the hard metal bushing and the outer wall of the anti-roll bar, and the middle part of the hard metal bushing is integrally formed with an extension rod; The outer side end of the extension rod is connected with a universal assembly, the lower end of the universal assembly is fixedly connected to the frame, and is used for connecting the anti-roll bar and the frame together with the bushing assembly, so that the anti-roll bar moves relatively in multiple directions.
[0006] As a further scheme of the present application: the first flexible sleeve and the second flexible sleeve are both polyurethane materials, and the first flexible sleeve and the second flexible sleeve are firmly combined with the hard metal bushing through a vulcanization process.
[0007] As a further scheme of the present application: the universal assembly comprises a fixing seat fixed on the frame by bolts, an connecting column fixedly connected to the upper end of the fixing seat, a spherical cup integrally formed on the outer side end of the connecting column, a ball arranged in the spherical cup, and a limiting end cover for limiting the ball in the inner cavity of the spherical cup, the limiting end cover being fixedly connected with the fixing seat by bolts. An connecting rod is integrally formed on the side of the ball close to the extension rod, and a screw rod is connected to the outer side end of the connecting rod, the screw rod being threadedly connected with the extension rod.
[0008] As a further scheme of the present application: the upper opening inner diameter of the limiting end cover is smaller than the radius of the ball, and the spherical cup, the ball and the limiting end cover are all made of high-strength steel material.
[0009] As a further scheme of the present application: the bushing assembly further comprises a plurality of steel balls between the inner cavity of the spherical cup and the outer wall of the ball.
[0010] As a further scheme of the present application: a screw hole is formed in the outer side end of the extension rod for threadedly connecting the screw rod, and a rubber pad is arranged between the connecting rod and the extension rod.
[0011] As a further scheme of the present application: the fixing seat is located below the side of the anti-roll bar, and when the universal assembly is connected and fixed with the bushing assembly, the connecting rod is arranged obliquely relative to the anti-roll bar.
[0012] Compared with the prior art, the present application has the following advantages: The universal assembly and the bushing assembly are combined to serve as a connecting piece between the anti-roll bar and the frame, the universal assembly can realize multi-angle rotation and power transmission, and can be used in occasions where relative movement between components is allowed while torque or force is transmitted, so as to allow the anti-roll bar to move relatively in multiple directions, thereby relatively reducing the wear and tear of the bushing assembly and the breakage of molecular chains in the same period, and prolonging the service life of the bushing assembly, and in addition, the material properties of the first flexible sleeve and the second flexible sleeve can be used to absorb the slight displacement between the frame and the anti-roll bar, avoid stress concentration caused by rigid connection, and optimize the balance between roll control and comfort. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 The present application is a structural schematic diagram; Figure 2Another perspective structure schematic view of the present application; Figure 3 Structure schematic view of the universal assembly and the bushing assembly of the present application; Figure 4 Structure schematic view of the present application Figure 3 Split structure schematic view of the present application; Figure 5 Section structure schematic view of the bushing assembly of the present application; Figure 6 Section structure schematic view of the universal assembly of the present application.
[0014] In the figure: 1, anti-roll bar; 2, universal assembly; 201, fixed seat; 202, connecting column; 203, ball bowl; 204, ball; 205, steel ball; 206, limiting end cover; 207, connecting rod; 208, screw rod; 3, bushing assembly; 301, hard metal bushing; 302, first flexible sleeve; 303, second flexible sleeve; 304, extension rod; 305, screw hole; 4, rubber pad. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0016] Please refer to Figures 1-6 In the embodiments of the present application, a light vehicle suspension member includes an anti-roll bar 1, and the anti-roll bar 1 is connected with a bushing assembly 3 at both ends. The bushing assembly 3 includes a hard metal bushing 301 sleeved on the outer wall of the anti-roll bar 1. The inner and outer walls of the hard metal bushing 301 are respectively provided with a first flexible sleeve 302 and a second flexible sleeve 303. The first flexible sleeve 302 is wrapped on the outer wall of the hard metal bushing 301, and the second flexible sleeve 303 is located between the outer wall of the hard metal bushing 301 and the anti-roll bar 1. The hard metal bushing 301 is integrally formed with an extension rod 304 at one side of the middle part. The outer side end of the extension rod 304 is connected with a universal assembly 2, and the lower end of the universal assembly 2 is fixedly connected to a vehicle frame. The universal assembly 2 is used to connect the anti-roll bar 1 and the vehicle frame together with the bushing assembly 3, so that the anti-roll bar 1 moves relatively in multiple directions. The first flexible sleeve 302 and the second flexible sleeve 303 are both made of polyurethane material, and the first flexible sleeve 302 and the second flexible sleeve 303 are firmly combined with the hard metal bushing 301 through a vulcanization process. The universal assembly 2 comprises a fixing seat 201 fixed on the frame by bolts, the upper end of the fixing seat 201 is fixedly connected with a connecting column 202, the outer side end of the connecting column 202 is integrally formed with a ball socket 203, the inside of the ball socket 203 is provided with a ball 204, the ball 204 is limited in the inner cavity of the ball socket 203 by a limiting end cover 206, and the limiting end cover 206 is fixedly connected with the fixing seat 201 by bolts. The side of the ball 204 close to the extension rod 304 is integrally formed with a connecting rod 207, the outer side end of the connecting rod 207 is connected with a screw rod 208, and the screw rod 208 is connected with the extension rod 304 by threads. The upper opening inner diameter of the limiting end cover 206 is smaller than the radius of the ball 204, and the ball socket 203, the ball 204 and the limiting end cover 206 are all made of high-strength steel material.
[0017] In the embodiment, due to the influence of the torsion force of the anti-roll bar and the vibration of the frame for a long time, the rubber molecular chain will gradually break, resulting in a decrease in hardness and a loss of elasticity (i.e. "creep"). After the bushing becomes soft, a gap appears between the anti-roll bar and the frame, an abnormal noise is generated during cornering, or the side tilt suppression effect is weakened. In short, the service life of the bushing cannot be guaranteed under the action of forces in multiple directions. Therefore, the universal assembly 2 and the bushing assembly 3 are combined to serve as a connecting piece between the anti-roll bar 1 and the frame. The universal assembly 2 can realize multi-angle rotation and power transmission and can be used in occasions where relative movement between components is allowed while torque or force is transmitted, so as to allow the anti-roll bar to move relatively in multiple directions. In this case, the wear of the bushing assembly 3 and the breakage of the molecular chain can be relatively reduced in the same period, thereby prolonging the service life of the bushing assembly 3. In addition, the material properties of the first flexible sleeve 302 and the second flexible sleeve 303 can be used to absorb the slight displacement between the frame and the anti-roll bar, avoid stress concentration caused by rigid connection, and optimize the balance between side tilt control and comfort.
[0018] Since the anti-roll bar needs to bear a large torsional force and impact force during vehicle driving, high requirements are put forward for the durability and reliability of the universal ball. Therefore, the universal assembly 2 and the bushing assembly 3 are combined, which can make up for the shortcomings of each other and make the most of the advantages of both, thereby optimizing the flexibility of the connection between the anti-roll bar 1 and the frame and improving the service life of the connection.
[0019] Please refer to Figures 1-6 , the bushing assembly 3 further comprises a plurality of steel balls 205 located between the inner cavity of the ball socket 203 and the outer wall of the ball 204.
[0020] In the embodiment, the flexibility of the rotation of the ball body 204 is effectively improved by arranging a plurality of steel balls 205 between the ball cup 203 and the ball body 204, the sliding friction is replaced by the rolling friction, the stable movement is maintained in the high-speed movement by the optimized design of the double-sided contact surface, and the disassembly and assembly of the universal assembly 2 are very convenient, so that the time is not wasted, and the subsequent maintenance or replacement is guaranteed.
[0021] Please refer to Figures 1-6 , the outer end of the extension rod 304 is provided with a threaded hole 305 for the threaded connection of the screw rod 208, and the rubber pad 4 is arranged between the connecting rod 207 and the extension rod 304.
[0022] In the embodiment, the screw rod 208 and the threaded hole 305 are fixed by the threaded connection, and the rubber pad 4 is additionally arranged between the extension rod 304 and the connecting rod 207. When the screw rod 208 is completely connected with the threaded hole 305, the rubber pad 4 is tightly pressed by the extension rod 304 and the connecting rod 207. The elasticity of the rubber pad 4 can absorb the vibration energy at the threaded connection, reduce the loosening or fatigue fracture caused by vibration, prolong the service life of the thread, and reduce the risk of abnormal sound compared with the rigid connection.
[0023] Please refer to Figures 1-6 , the fixed seat 201 is located below the side of the anti-roll bar 1, and when the universal assembly 2 is connected and fixed with the bushing assembly 3, the connecting rod 207 is arranged obliquely relative to the anti-roll bar 1.
[0024] In the embodiment, in order to fully exhibit the flexibility of the universal assembly 2 in multiple directions and avoid that the universal assembly 2 is subjected to a large impact force, the universal assembly 2 is arranged on the side below the anti-roll bar 1. Since the anti-roll bar 1 is subjected to more up-down swinging, if the universal assembly 2 is located directly below the anti-roll bar 1, the ball body 204 will generate a large impact force on the steel ball 205, and then the steel ball 205 will be damaged, affecting the smooth rotation in multiple directions. Therefore, when the universal assembly 2 is arranged on the side below the anti-roll bar 1, when the anti-roll bar 1 is subjected to up-down movement, the outer end of the connecting rod 207 is correspondingly subjected to up-down swinging, so that the large impact force is not generated on the steel ball 205, the steel ball 205 is effectively protected from the large stress damage, and the service life of the universal assembly 2 is prolonged.
[0025] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A light vehicle suspension member comprising an anti-roll bar (1), characterised in that, Both ends of the anti-roll bar (1) are connected with a bushing assembly (3), the bushing assembly (3) comprises a hard metal bushing (301) sleeved on the outer wall of the anti-roll bar (1), the inner and outer of the hard metal bushing (301) are respectively provided with a first flexible sleeve (302) and a second flexible sleeve (303), the first flexible sleeve (302) is covered on the outer wall of the hard metal bushing (301), and the second flexible sleeve (303) is located between the hard metal bushing (301) and the outer wall of the anti-roll bar (1), one side of the middle part of the hard metal bushing (301) is integrally formed with an extension rod (304); The outer side end of the extension rod (304) is connected with a universal assembly (2), the lower end of the universal assembly (2) is fixedly connected on the vehicle frame, and is used for connecting the anti-roll bar (1) with the vehicle frame together with the bushing assembly (3), so that the anti-roll bar (1) moves relatively in multiple directions.
2. A light vehicle suspension member according to claim 1, wherein, The first flexible sleeve (302) and the second flexible sleeve (303) are both polyurethane materials, and the first flexible sleeve (302) and the second flexible sleeve (303) are firmly combined with the hard metal bushing (301) through a vulcanization process.
3. A light vehicle suspension member as claimed in claim 2, characterised in that, The universal assembly (2) comprises a fixed seat (201), the fixed seat (201) is fixed on the vehicle frame through bolts, the upper end of the fixed seat (201) is fixedly connected with a connecting column (202), the outer side end of the connecting column (202) is integrally formed with a ball bowl (203), the inside of the ball bowl (203) is provided with a ball (204), the ball (204) is limited in the inner cavity of the ball bowl (203) through a limiting end cover (206), and the limiting end cover (206) is fixedly connected with the fixed seat (201) through bolts; The side of the ball (204) close to the extension rod (304) is integrally formed with a connecting rod (207), the outer side end of the connecting rod (207) is connected with a screw rod (208), and the screw rod (208) and the extension rod (304) are connected through threads.
4. A light vehicle suspension member according to claim 3, wherein, The upper opening inner diameter of the limiting end cover (206) is smaller than the radius of the ball (204), and the ball bowl (203), the ball (204) and the limiting end cover (206) are all made of high-strength steel material.
5. A light vehicle suspension member as claimed in claim 4, wherein, The bushing assembly (3) further comprises a plurality of steel balls (205) located between the inner cavity of the ball bowl (203) and the outer wall of the ball (204).
6. A light vehicle suspension member as claimed in claim 5, characterised in that, The outer side end of the extension rod (304) is provided with a threaded hole (305) for the threaded connection of the screw rod (208), and a rubber pad (4) is arranged between the connecting rod (207) and the extension rod (304).
7. A light vehicle suspension member as claimed in claim 6, characterised in that, The fixed seat (201) is located below and on one side of the anti-roll bar (1), when the universal assembly (2) and the bushing assembly (3) are connected and fixed, the connecting rod (207) is inclined relative to the anti-roll bar (1).