CN215805724U - Economical balance torsion connecting rod - Google Patents
Economical balance torsion connecting rod Download PDFInfo
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- CN215805724U CN215805724U CN202122459855.9U CN202122459855U CN215805724U CN 215805724 U CN215805724 U CN 215805724U CN 202122459855 U CN202122459855 U CN 202122459855U CN 215805724 U CN215805724 U CN 215805724U
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Abstract
The utility model provides an economical balance torsion connecting rod which comprises a ball pin bearing, wherein the ball pin bearing comprises a ball pin, a sealing ring assembly, a ball pin seat and a shell, one end of the ball pin is a ball head, and the other end of the ball pin is a rod body; the sealing ring assembly is arranged between the shell and the rod body, and the inner spherical surface of the ball pin seat is movably arranged on the outer spherical surface of the ball head; the bottom end in the shell is provided with the assembly hole, the upper end of the assembly hole is provided with the chamfer, the ball pin seat can be conveniently and quickly pressed into the shell assembly hole, the machining precision of the shell assembly hole is reduced, and the machining cost of the shell is reduced; the inner circumferential surface of the bottom of the shell tightly presses the end surface of the flange step of the ball pin base, so that the ball pin base is tightly attached to the shell, the ball pin is prevented from being abraded due to relative displacement between the ball pin base and the shell in the rotating process, and the service life of the bearing is prolonged; the bottom end of the ball pin seat is clamped into the through hole at the bottom of the shell, so that a cover plate is not required to be additionally installed, and the structure is simplified.
Description
Technical Field
The utility model designs a balance torsion connecting rod, and particularly relates to an economical balance torsion connecting rod.
Background
The balance torsion connecting rod is a moving part arranged between the left wheel, the right wheel and the suspension of the all-terrain recreational vehicle. When the left wheel and the right wheel respectively move up and down, the balance torque connecting rod is twisted by the balance torque connecting rod, the left side and the right side of the all-terrain recreational vehicle maintain similar heights by utilizing the reaction force generated by the stress of the balance torque connecting rod, the transverse rolling degree of the recreational vehicle is reduced, and the smoothness is improved.
The existing balance torque connecting rod has high manufacturing size precision, complex structure and complex processing, thereby causing high manufacturing cost.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides the economical balance torsion connecting rod, which has the advantages of simplified structure, simple processing, quicker and easier assembly and reduced manufacturing cost.
The present invention achieves the above-described object by the following technical means.
An economical balance torsion connecting rod comprises a ball pin bearing, wherein the ball pin bearing comprises a ball pin, a sealing ring assembly, a ball pin seat and a shell, one end of the ball pin is a ball head, and the other end of the ball pin is a rod body; the sealing ring assembly is arranged between the shell and the rod body, and the inner spherical surface of the ball pin seat is movably arranged on the outer spherical surface of the ball head; the bottom end of the inside of the shell is provided with an assembly hole, the upper end of the assembly hole is provided with a chamfer, the inner circumferential surface of the bottom of the shell tightly presses the end surface of the flange step of the ball pin base, and the bottom end of the ball pin base is clamped into the through hole at the bottom of the shell.
Furthermore, the ball pin seat is formed by injection molding of polyformaldehyde, and the polyformaldehyde is added with glass fibers, polytetrafluoroethylene, white carbon black and graphite.
Furthermore, the sealing ring assembly comprises an elastic framework, a sealing ring and an elastic locking ring, the elastic framework is arranged in the lower opening of the sealing ring, the elastic locking ring is arranged in the upper opening of the sealing ring, and the elastic locking ring seals the outer circle of the neck of the ball pin bearing.
Further, a flange step is arranged at the neck.
Furthermore, the elastic framework is made of spring steel, the sealing ring is made of chloroprene rubber, and the elastic locking ring is made of a stainless steel spring.
Further, the inner peripheral surface of the bottom of the housing is formed by subjecting the housing to caulking plastic deformation by a forming die.
Furthermore, the spherical surface in the ball pin seat is provided with oil grooves which are in a cross shape or an axial parallel shape.
Furthermore, the number of the ball pin bearings is two, the two ball pin bearings are respectively fixed at two ends of the middle connecting rod, the included angle of the central shafts of the two ball pin bearings is set to be alpha, and the alpha is 0-90 degrees.
The utility model has the following beneficial effects:
(1) according to the utility model, the bottom end in the shell is provided with the assembling hole, the upper end of the assembling hole is provided with the chamfer, so that the ball pin seat can be conveniently and quickly pressed into the shell assembling hole, the assembly of the ball pin seat and the shell is quicker and easier, the processing precision of the shell assembling hole is reduced, and the processing cost of the shell is reduced; the inner circumferential surface of the bottom of the shell tightly presses the end surface of the flange step of the ball pin base, so that the ball pin base is tightly attached to the shell, the ball pin is prevented from being abraded due to relative displacement between the ball pin base and the shell in the rotating process, and the service life of the bearing is prolonged; the bottom end of the ball pin seat is clamped into the through hole at the bottom of the shell, so that a cover plate is not required to be additionally installed, and the structure is simplified.
(2) The utility model adopts the ball pin seat formed by injection molding of wear-resistant and high-strength polymer engineering plastics (polyformaldehyde, glass fiber, polytetrafluoroethylene, white carbon black and graphite), so that the ball pin seat is simple to process.
(3) According to the utility model, the ball pin seat is completely contacted with the ball head of the ball pin, so that the pressure born by the surface of the ball head is obviously reduced under the condition that the balance torque connecting rod bears the same load, the moment of the ball pin is more stable in the motion process, the transverse roll degree of a vehicle is reduced, and the smoothness is improved.
(4) The sealing ring assembly comprises an elastic framework, a sealing ring and an elastic locking ring, wherein the elastic framework is arranged in the lower opening of the sealing ring, the elastic locking ring is arranged in the upper opening of the sealing ring, the elastic locking ring seals the excircle of the neck part of the ball pin bearing, and the elastic framework of the sealing ring is in interference fit with the shell, so that the sealing ring assembly can be prevented from falling off; the neck is provided with flange step, solves the ball round pin and takes place the gliding when the extreme position is swung to the sealing washer subassembly upper shed, leads to the problem that dustproof performance descends.
Drawings
FIG. 1 is a front view of a balanced torque link according to the present invention;
FIG. 2 is a left side view of the balanced torque link of the present invention;
FIG. 3 is a schematic view of a ball pin bearing configuration according to the present invention;
FIG. 4(a) is a schematic structural view of an embodiment of the ball pin seat oil groove of the present invention;
FIG. 4(b) is a schematic structural view of an embodiment of the ball pin seat oil groove of the present invention;
FIG. 5 is a schematic view of a seal ring assembly according to the present invention;
in the figure: 100-ball pin bearings; 200-an intermediate link; 110-ball stud; 110A-bulb; 110B-a rod body; 110C-neck; 110D-a flange step; 120-a seal ring assembly; 120A-elastic skeleton; 120B-sealing ring; 120C-elastic locking ring; 130-ball pin seat; 130A-ball pin seat oil groove; 140-a housing; 140A-inner peripheral surface of the bottom of the housing; 140B-chamfer.
Detailed Description
The utility model will be further described with reference to the following figures and specific examples, but the scope of the utility model is not limited thereto.
As shown in fig. 1 and 2, the economical balance torsion connecting rod of the present invention includes two ball pin bearings 100 and an intermediate connecting rod 200, wherein the two ball pin bearings 100 are respectively located at two ends of the intermediate connecting rod 200, and two ends of the intermediate connecting rod 200 are respectively welded and fixed with a housing of the ball pin bearings 100; the included angle between the central axes of the two ball pin bearings 100 is set as alpha which is 0-90 degrees.
As shown in fig. 3, the ball pin bearing 100 includes a ball stud 110, a seal ring assembly 120, a ball pin socket 130, and a housing 140; one end of the ball stud 110 is a ball head 110A, the other end is a rod body 110B, the sealing ring assembly 120 is arranged between the shell 140 and the rod body 110B, the inner spherical surface of the ball stud seat 130 is movably arranged on the outer spherical surface of the ball head 110A, and the bottom of the ball stud seat 130 is provided with a flange step; an assembly hole is formed in the bottom end inside the shell 140 in the direction parallel to the axial line of the ball head 110A, a chamfer (or an inverted arc) 140B is arranged at the upper end of the assembly hole, the ball pin seat 130 can be conveniently and quickly pressed into the assembly hole of the shell 140, and the machining precision of the assembly hole of the shell 140 can be reduced by arranging the chamfer (or the inverted arc) 140B, so that the machining cost of the shell 140 is reduced, and the assembly is quicker and easier; the shell 140 is riveted and plastically deformed by a forming die to form a shell bottom inner circumferential surface 140A, the shell bottom inner circumferential surface 140A tightly presses the end surface of the flange step of the ball pin seat 130, the ball pin seat 130 and the shell 140 are tightly attached to each other, abrasion of the ball pin 110 caused by relative displacement between the ball pin seat 130 and the shell 140 in the rotating process is prevented, noise caused by abrasion is reduced, and the service life of the bearing is prolonged; meanwhile, the bottom end of the ball pin seat 130 is clamped into the through hole at the bottom of the shell 140, so that a cover plate does not need to be additionally installed, and the structure is simplified.
As shown in fig. 5, the seal ring assembly 120 includes an elastic backbone 120A, a seal ring 120B, and an elastic locking ring 120C; the elastic framework 120A is internally arranged at the lower opening of the sealing ring 120B, the elastic framework 120A is in interference fit with the step surface of the excircle of the shell 140, the elastic locking ring 120C is arranged in the upper opening of the sealing ring 120B to seal the excircle of the neck 110C of the ball pin bearing 100, and the neck 110C is provided with a flange step 110D which can prevent the upper opening of the sealing ring 120B from sliding downwards when the ball pin 110 swings to the limit position; the elastic framework 120A is made of spring steel, the sealing ring 120B is made of chloroprene rubber, and the elastic locking ring 120C is made of a stainless steel spring.
The sealing space formed by the sealing ring assembly 120, the ball stud 110 and the housing 140 is filled with lubricant, so that external dust and sand are prevented from entering, and the lubricant is prevented from running off.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (8)
1. The economical balance torque connecting rod is characterized by comprising a ball pin bearing (100), wherein the ball pin bearing (100) comprises a ball pin (110), a sealing ring assembly (120), a ball pin seat (130) and a shell (140), one end of the ball pin (110) is a ball head (110A), and the other end of the ball pin (110) is a rod body (110B); the sealing ring assembly (120) is arranged between the shell (140) and the rod body (110B), and the inner spherical surface of the ball pin seat (130) is movably arranged on the outer spherical surface of the ball head (110A); the bottom of the inside of the shell (140) is provided with an assembly hole, the upper end of the assembly hole is provided with a chamfer (140B), the inner peripheral surface (140A) of the bottom of the shell tightly presses the end surface of the flange step of the ball pin seat (130), and the bottom end of the ball pin seat (130) is clamped into a through hole at the bottom of the shell (140).
2. The economical balanced torsion connecting rod of claim 1, wherein the ball pin seat (130) is formed by injection molding of polyoxymethylene, and the polyoxymethylene is added with glass fiber, polytetrafluoroethylene, white carbon black and graphite.
3. The economical balanced torque link of claim 1, wherein the seal ring assembly (120) comprises an elastic frame (120A), a seal ring (120B), and an elastic locking ring (120C), wherein the elastic frame (120A) is disposed inside a lower opening of the seal ring (120B), the elastic locking ring (120C) is disposed inside an upper opening of the seal ring (120B), and the elastic locking ring (120C) seals an outer circumference of the neck portion (110C) of the ball pin bearing (100).
4. The economical balanced torque link according to claim 3, characterized in that a rib step (110D) is provided at the neck (110C).
5. The economical balanced torque link of claim 3, wherein the resilient backbone (120A) is made of spring steel, the seal ring (120B) is made of neoprene, and the resilient locking ring (120C) is made of a stainless steel spring.
6. The economical balanced torque link according to claim 1, wherein the housing bottom inner peripheral surface (140A) is formed by rivet-press plastic deformation of the housing (140) by a forming die.
7. The economical balanced torsion link of claim 1, wherein the ball pin seat (130) has oil grooves (130A) formed on an inner spherical surface thereof, and the oil grooves (130A) have a cross shape or an axially parallel shape.
8. The economical balanced torsion bar of claim 1, wherein the two ball pin bearings (100) are fixed at both ends of the intermediate bar (200), and the angle between the central axes of the two ball pin bearings (100) is set as α, and α is 0-90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122459855.9U CN215805724U (en) | 2021-10-13 | 2021-10-13 | Economical balance torsion connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122459855.9U CN215805724U (en) | 2021-10-13 | 2021-10-13 | Economical balance torsion connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215805724U true CN215805724U (en) | 2022-02-11 |
Family
ID=80170524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122459855.9U Active CN215805724U (en) | 2021-10-13 | 2021-10-13 | Economical balance torsion connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215805724U (en) |
-
2021
- 2021-10-13 CN CN202122459855.9U patent/CN215805724U/en active Active
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