High-strength vehicle stabilizer bar structure
By adding O-rings, limiting bosses, and self-lubricating structural layers to the vehicle stabilizer bar structure, the problems of dust cover tearing, abnormal noise, and poor sealing performance have been solved, thereby improving the stability and comfort of the high-strength vehicle stabilizer bar.
Patent Information
- Application Number
- CN202520112657.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing vehicle stabilizer bar structures are prone to problems such as dust cover tearing, abnormal noise, poor operation, and poor sealing performance during use, especially when tested on complex road sections.
It adopts a high-strength vehicle stabilizer bar structure, and by adding O-rings, limiting bosses and self-lubricating structural layers to the joint bearings, combined with auxiliary retaining rings and dust cover design, it ensures sealing and stability, prevents dust cover from falling off and abnormal noise, and improves operating comfort and service life.
It effectively prevents dust cover cracking and abnormal noise, improves sealing performance, enhances operating comfort and product life, and ensures the stability and reliability of bearings on complex road sections.
Smart Images
Figure CN223574151U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of high-strength vehicle stabilizer bar structure, belong to suspension system technical field. BACKGROUND
[0002] This vehicle stabilizer bar structure is the mechanism for connecting wheel and vehicle body, and it supports and damps the vehicle body, mainly transmits the force between wheel and frame, and buffers the impact force from uneven road to frame or vehicle body, attenuates the vibration caused thereby, to ensure that the car can travel smoothly.
[0003] The existing vehicle stabilizer bar structure, user often feedback product performance is not good, after a period of running-in, dust cover is prone to tearing phenomenon, in complex road section test, vehicle can feel obvious impact, operation feeling is not good, part of parts will also produce abnormal sound, affect operation observation. Dust cover mouth also has the condition of falling out, leading to external dust and sewage into the bearing inside. UTILITY MODEL CONTENTS
[0004] The utility model aims at the deficiency of prior art, provide a kind of high-strength vehicle stabilizer bar structure, can improve the use performance of product, prevent the situation that the working angle (the included angle between the inner ring and the outer ring axis) of bearing during use exceeds design capacity, solve the problems such as dust cover rupture, auxiliary check ring impact generated thereby, optimize the problem that product works and produces abnormal sound, operation is not good, optimize auxiliary check ring structure, prevent dust cover from falling out during work, affect product sealing performance.
[0005] The utility model adopts the technical scheme that:
[0006] A kind of high-strength vehicle stabilizer bar structure, including stabilizer bar body, shell connected with stabilizer bar body and joint bearing installed in shell mounting seat hole, the joint bearing includes inner ring, outer ring, dust cover and auxiliary check ring;The inner ring adopts ball pin, including spherical surface, pin shaft, and the connecting place of spherical surface and pin shaft is neck portion;Its characterized in that: it is also equipped with two O-rings, and the cross section of O-ring is oval;Two auxiliary check rings are respectively sleeved in the both ends of pin shaft of inner ring, and annular installation cavity is formed between inner ring neck portion, outer ring end face and the end face of auxiliary check ring on the same side, for installing O-ring.
[0007] In the above scheme, O-ring is added between inner ring and auxiliary check ring during assembly, after auxiliary check ring is assembled in place, O-ring is deformed, and is tightly attached with auxiliary check ring and outer ring to confirm the sealing performance of product, prevent steel-steel structure collision from affecting service life;Meanwhile, due to the interference fit of O-ring, the swing torque of product during swing is effectively improved, so that there is obvious blocking feeling during operation, and the controllability and comfort of machine are provided.
[0008] Further, the outer ring is provided with a limiting boss at the middle of the two end faces in the radial direction, so that the end face of the outer ring forms an inner limiting groove and an outer limiting groove; the neck of the inner ring is provided with a transition R angle, and the inner limiting groove, the transition R angle and the inner end face of the auxiliary retainer form an annular mounting cavity matched with the O-ring.
[0009] In the above scheme, the transition R angle is arranged at the neck (the connecting part of the spherical surface and the pin shaft) of the inner ring, so that a certain gap, i.e. an annular mounting cavity, exists between the assembled outer ring (limiting boss), inner ring and auxiliary retainer, and the O-ring is assembled in the annular mounting cavity. When the bearing is in swing operation, the O-ring is pressed tightly under force, preventing external dust and sewage from entering the bearing interior and preventing internal grease from leaking or seeping out. The O-ring makes the product have a clear blocking feeling during operation, improving the comfort of operation.
[0010] In addition, the limiting boss on the outer ring can effectively stop the swing from continuing when the product swings to the allowed limit position, ensuring that the swing angle of the product during operation meets the use requirements and preventing the dust cover from being broken due to an excessively large swing angle.
[0011] Further, the lower part of the shell mounting seat hole is provided with an outwardly protruding retainer, and the upper part is provided with an inner clamping groove; the retainer is tightly combined with the outer limiting groove at the bottom of the outer ring, and the clamping spring is installed in the inner clamping groove of the shell and tightly presses the outer limiting groove at the top of the outer ring, realizing the fixation of the joint bearing.
[0012] In the above scheme, the outer ring is in interference fit with the shell mounting seat hole, and the end face of the auxiliary retainer is pressed against the end face of the outer ring through the O-ring, so that the outer ring and the shell do not relatively displace during the rotation of the ball pin, thereby ensuring that the outer ring and the shell do not wear and improving the service life of the bearing and reducing the noise generated by the wear of the bearing. In addition, the single clamping spring and the outwardly protruding retainer are used between the shell and the outer ring, so that only one clamping spring needs to be pressed during assembly, simplifying the installation procedure.
[0013] Further, the inner spherical surface of the outer ring is provided with an assembly groove, and a self-lubricating structure layer is embedded in the assembly groove. The self-lubricating structure layer includes a steel plate and a polytetrafluoroethylene material layer, the metal outer layer (steel plate) of the self-lubricating structure layer is tightly attached to the inside of the assembly groove, and the polytetrafluoroethylene material layer is attached to the spherical surface of the inner ring.
[0014] The self-lubricating structure layer and the inner ring are in clearance fit, which helps the bearing to control swing and rotation torque and improves the stability of the machine. The self-lubricating structure layer replaces the steel-to-steel structure, and no additional grease needs to be injected subsequently, reducing the abnormal noise generated during the use of the product and improving the usability and service life of the product.
[0015] Further, the outer side of the auxiliary retaining ring is provided with a limiting step, and the corner of the limiting step is transitioned by an arc surface; the mouth of the dust cover is mounted at the limiting step of the auxiliary retaining ring, and the other end is mounted in the inner wall of the shell mounting seat hole by interference fit of the elastic steel framework, and is tightly clamped to the end face of the snap spring.
[0016] In the above scheme, the limiting step on the auxiliary retaining ring can be matched with the limiting boss on the outer ring, and when the product swings to the allowed limit position, the swing continues to be effectively stopped, the swing angle of the product during work is ensured to meet the use requirement, and the dust cover is prevented from being broken due to the too large swing angle. In addition, when the bearing is in swing work, the arc transition can prevent the dust cover from being stuck.
[0017] Further, the inner limiting groove is higher than the horizontal part of the transition R angle, and the edge of the inner limiting groove is provided with a round arc chamfer to prevent the sharp corner from damaging the O-shaped ring; the limiting boss of the outer ring has a height greater than half the thickness of the O-shaped ring, which can meet the swing requirement of the bearing and prevent the O-shaped ring from coming out.
[0018] The utility model discloses when assembling: the shell is as support seat, first, the self-lubricating structure layer is installed in the assembly groove of outer ring, and the self-lubricating structure layer is coated with grease, and the inner ring is pressed into the outer ring through extrusion component, at this time, the self-lubricating structure layer is extruded, and is tightly combined together with the assembly groove of outer ring, then, the O-shaped ring is installed in the two inner limiting grooves of outer ring, and the auxiliary retaining ring is installed on the both ends of the pin shaft of ball pin, at this time, the bearing is pressed into the shell in the interference, and is pressed into the retaining ring position of shell, and then the snap spring is pressed into the snap spring groove in the shell, and the whole bearing is fixed, the auxiliary retaining ring is interference fit with the inner ring, and the O-shaped ring is transition fit with the auxiliary retaining ring, the inner ring and the outer ring, finally, the dust cover is pressed into the specified position at both ends by using the tool, and the assembling work is completed.
[0019] The utility model discloses the beneficial effects are:
[0020] (1) the outer ring is provided with a limiting boss
[0021] After the assembly of the joint bearing is completed, the bearing is pressed as a whole, and the inner ring works and swings back and forth during the pressing process, the angle change of the inner ring is limited by the limiting boss newly added on the outer ring, the swing angle is prevented from exceeding the design requirement, and the inner ring and the outer ring frequently collide, which affects the performance of the whole product. The limiting boss newly added on the outer ring can limit the swing angle of the inner ring when the inner ring swings, and prevent the dust cover from being broken due to the too large swing angle and repeatedly pulling the dust cover.
[0022] The inner side limiting groove formed on the outer ring end face can effectively control the swing angle of the product during work, and when the product works to the limit position, the inner side limiting groove contacts the inner ring to prevent the working angle from exceeding the design requirement, avoid the dust cover from being torn due to the too large swing angle, and prevent the external dust and foreign matters from entering the internal friction pair to affect the service life.
[0023] (2) Add O-ring
[0024] When the assembled vehicle passes through a bumpy road section, the stabilizer bar swings at the connection with the remaining parts, and during the self-adjusting process of the stabilizer bar, the O-ring is fixed between the inner ring, the outer ring and the auxiliary retainer, deforms along with the self-adjusting of the stabilizer bar, and tightly fits the contact parts to ensure the stability during work and avoid the steel-to-steel collision between the outer ring, the inner ring and the auxiliary retainer, thereby improving the service life of the product. The elastic structure of the O-ring makes the stabilizer bar more stable during the self-adjusting process, and the product has obvious blocking feeling during work, thereby improving the comfort of operation.
[0025] After assembly, the O-ring deforms and tightly fits the outer ring, the inner ring and the auxiliary retainer to ensure the sealing property and prevent the external dust and sewage from entering the bearing interior.
[0026] (3) Set a self-lubricating structure layer between the outer ring and the inner ring friction pair
[0027] After the outer ring is pressed and assembled with the inner ring, the self-lubricating structure layer tightly fits the outer ring and the inner ring to ensure the sealing property, ensure that the bearing is well lubricated during the service life, prevent the steel-to-steel structure from generating large impact and abnormal sound during work, thereby improving the comfort during operation and improving the performance of the product.
[0028] (4) Add a limiting step on the auxiliary retainer
[0029] The limiting step is used for fixing the dust cover to prevent the dust cover from slipping out of the opening position during swing and prevent the external dust and sewage from entering the bearing interior to affect the performance of the product. During the swing work of the bearing, the arc surface transition of the limiting step can prevent the dust cover from being stuck and torn. BRIEF DESCRIPTION OF DRAWINGS
[0030] Figure 1 is the assembly front view of the utility model;
[0031] Figure 2 is the structure schematic view of the utility model before the dust cover is assembled;
[0032] Figure 3 is the schematic view of the utility model working to the limit position;
[0033] Figure 4 is the schematic view of the outer ring in the utility model;
[0034] Figure 5 This is a schematic diagram of the auxiliary retaining ring in this utility model;
[0035] In the diagram: Inner ring 1, Auxiliary retaining ring 2, Limiting step 2-1, Dust cover 3, Snap ring 4, Housing 5, Retaining ring 5-1, Inner groove 5-2, Self-lubricating structural layer 6, Outer ring 7, Limiting boss 7-1, Inner limiting groove 7-2, Outer limiting groove 7-3, Assembly groove 7-4, 8 O-ring. Detailed Implementation
[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0037] A high-strength vehicle stabilizer bar structure includes a stabilizer bar body, a housing 5 connected to the stabilizer bar body, and a spherical bearing mounted in a mounting hole in the housing. Figure 1 As shown, the spherical plain bearing includes an inner ring 1, an outer ring 7, a dust cover 3, an auxiliary retaining ring 2, and an O-ring 8. The inner ring adopts a ball-pin structure, including a spherical surface and a pin shaft. The connection between the spherical surface and the pin shaft is the neck. The cross-section of the O-ring is elliptical.
[0038] Two auxiliary retaining rings 2 are respectively fitted onto the two ends of the pin of the inner ring 1. The two end faces of the outer ring 7 are respectively provided with a limiting boss 7-1 in the radial middle part, so that the end face of the outer ring forms an inner limiting groove 7-2 and an outer limiting groove 7-3. The neck of the inner ring is provided with a transition R angle. The inner limiting groove, the transition R angle and the inner end face of the auxiliary retaining ring on the same side form an annular mounting cavity that matches the O-ring, which is used to install two O-rings.
[0039] The outer side of the auxiliary retaining ring 2 is provided with a limiting step 2-1, and the corner of the limiting step is transitioned with an arc surface; the opening of the dust cover is installed at the limiting step of the auxiliary retaining ring, and the other end is installed on the inner wall of the housing mounting hole through an interference fit of the elastic steel frame, and is in close contact with the end face of the snap ring.
[0040] In one embodiment of this utility model, the mounting hole of the housing 5 has a convex retaining ring 5-1 at the lower part and an inner retaining groove 5-2 at the upper part; the retaining ring is tightly fitted with the outer limiting groove at the bottom of the outer ring, and the retaining spring 4 is installed in the inner retaining groove of the housing and pressed tightly against the outer limiting groove at the top of the outer ring to fix the spherical bearing.
[0041] In one embodiment of this utility model, the inner spherical surface of the outer ring is provided with a ring of mounting grooves 7-4, and a self-lubricating structural layer 6 is embedded in the mounting grooves.
[0042] During assembly, housing 5 serves as a support base:
[0043] First, the self-lubricating structure layer 6 is installed in the assembling groove 7-4 of the outer ring 7, the self-lubricating structure layer 6 is coated with grease, and the inner ring 1 is pressed into the outer ring 7 by extrusion parts, at this time, the self-lubricating structure layer 6 is extruded and tightly combined with the outer ring assembling groove 7-4;
[0044] Then, the O-ring 8 is installed in the two inner side limiting grooves 7-2 of the outer ring 7, and the auxiliary retainer ring 2 is installed at the both ends of the pin shaft of the ball pin, at this time, the whole bearing is press-fitted into the housing 5, and is press-fitted to the retainer ring 5-1 position of the housing, then the clamping spring 4 is press-fitted into the clamping spring groove 5-2 of the housing, and the whole bearing is fixed;
[0045] The auxiliary retainer ring 2 is in interference fit with the inner ring 1, and the O-ring 8 is in transition fit with the auxiliary retainer ring 2, the inner ring 1 and the outer ring 7;
[0046] Finally, the dust cover 3 is press-fitted into the specified position at both ends by using a tool, and the assembling work is completed.
[0047] In addition to the above-mentioned embodiments, the utility model can also have other implementation manners, and any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.
Claims
1. A high-strength vehicle stabilizer bar structure, comprising a stabilizer bar body, a housing connected to the stabilizer bar body, and a spherical bearing mounted in a mounting hole in the housing, wherein the spherical bearing comprises an inner ring, an outer ring, a dust cover, and an auxiliary retaining ring; characterized in that: It also has two O-rings; two auxiliary retaining rings are respectively fitted onto the two ends of the inner ring pin, and the inner ring neck, outer ring end face and auxiliary retaining ring end face on the same side form an annular mounting cavity for installing O-rings.
2. The high-strength vehicle stabilizer bar structure according to claim 1, characterized in that, The outer ring has a limiting protrusion on each of its two end faces in the radial middle portion, so that the end face of the outer ring forms an inner limiting groove and an outer limiting groove. The neck of the inner ring is provided with a transition R angle, and the inner limiting groove, the transition R angle, and the inner end face of the auxiliary retaining ring form an annular mounting cavity that matches the O-ring.
3. The high-strength vehicle stabilizer bar structure according to claim 2, characterized in that, The housing mounting hole has a convex retaining ring at its lower part and an inner retaining groove at its upper part; the retaining ring fits tightly with the outer limiting groove at the bottom of the outer ring, and the retaining spring is installed in the inner retaining groove of the housing and pressed tightly against the outer limiting groove at the top of the outer ring to fix the spherical bearing.
4. The high-strength vehicle stabilizer bar structure according to claim 1, characterized in that, The inner spherical surface of the outer ring is provided with a mounting groove, and a self-lubricating structural layer is embedded in the mounting groove.
5. A high-strength vehicle stabilizer bar structure according to claim 3, characterized in that, The outer side of the auxiliary retaining ring is provided with a limiting step, and the corner of the limiting step is transitioned by an arc surface; the opening of the dust cover is installed at the limiting step of the auxiliary retaining ring, and the other end is installed on the inner wall of the housing mounting hole.
6. A high-strength vehicle stabilizer bar structure according to claim 1 or 3, characterized in that, The O-ring has an elliptical cross-section.
7. A high-strength vehicle stabilizer bar structure according to claim 2, characterized in that, The inner limiting groove is higher than the horizontal part of the transition R angle, and the edge of the inner limiting groove is provided with a rounded chamfer.
8. A high-strength vehicle stabilizer bar structure according to claim 7, characterized in that, The height of the limiting boss on the outer ring is greater than half the thickness of the O-ring.