Thrust rod joint shell and thrust rod joint
Through the assembled shell design, the influence of vulcanization processing on the thrust rod sphere is avoided, the coordination between the sphere and the shell is ensured, the gap problem caused by vulcanization in the prior art is solved, and the product quality and service life are improved.
Patent Information
- Application Number
- CN202421407887.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-06-19
AI Technical Summary
During the vulcanization processing of existing thrust rod joints, the nylon spheres evaporate due to high temperatures, creating gaps, affecting product quality and shortening service life.
The assembled shell design is adopted, and the left hemisphere bowl and the right hemisphere bowl are connected by threads to fill the elastic parts. The ball is installed after the shell is processed to avoid vulcanization affecting the ball and ensure the coordination between the ball and the shell.
Improves the processing quality of the thrust rod joint and car driving stability, and extends the service life.
Smart Images
Figure CN222163214U_ABST
Abstract
Description
Technical Field
[0001] The utility model discloses a thrust rod joint shell and a thrust rod joint, and relates to the technical field of automobile accessories. Background Art
[0002] As an important part of wheel suspension, automobile axle and the connection device between automobile axle and body, automobile thrust rod joint participates in the function of automobile running mechanism. It mainly bears load transfer and steering during automobile driving, and plays a key role in vehicle handling stability, driving smoothness and safety.
[0003] In order to improve the wear resistance of the ball part on the main shaft of the thrust rod, nylon is often used in the prior art to make the ball, and the ball needs to be boiled during the processing. When the thrust rod is processed as a whole, the main shaft, ball bowl and retaining ring need to be placed in a mold together, and then rubber is poured between the ball bowl and the retaining ring to make its shell. After the pouring is completed, the rubber needs to be vulcanized to enhance the toughness of the rubber; but during the vulcanization process, the high temperature will cause the moisture in the nylon ball head to evaporate, causing the ball head to shrink as a whole, resulting in a gap, affecting the quality of the product, and when the vehicle is running, the formation of the gap will accelerate the damage of the ball head, greatly shortening the service life of the thrust rod. Summary of the invention
[0004] The utility model aims to design a thrust rod joint shell and a thrust rod joint which will not affect the thrust rod ball during the assembly process.
[0005] The thrust rod joint shell of the utility model comprises a left retaining ring and a right retaining ring respectively located at two ends thereof and a ball bowl located between the two retaining rings and having a spherical inner surface, an elastic member is filled between the ball bowl and the left retaining ring and the right retaining ring, the ball bowl is composed of a left hemispherical bowl and a right hemispherical bowl which are connected to each other and respectively have spindle holes, and the elastic member is composed of a left elastic member and a right elastic member, wherein the left elastic member is fixedly connected to the left hemispherical bowl and the left retaining ring, the right elastic member is fixedly connected to the right hemispherical bowl and the right retaining ring, and adjacent surfaces of the left elastic member and the right elastic member are connected to each other.
[0006] Furthermore, the left hemispherical bowl and the right hemispherical bowl are connected via threads.
[0007] Furthermore, the left hemispherical bowl is provided with a connecting portion with an external thread protruding from the right end surface of the left elastic member, the left end surface of the right hemispherical bowl is flush with the left end surface of the right elastic member, and the inner surface close to its end surface is provided with an internal thread screwed to the connecting portion.
[0008] Furthermore, the left elastic member and the right elastic member are connected by direct contact or by gluing.
[0009] A thrust rod joint comprises a main shaft, on the shaft body of which is fixed a sphere made of plastic material, the sphere being installed in a thrust rod joint housing as described in any one of the above, with the two ends of the shaft body respectively passing through the main shaft holes of the left hemispherical bowl and the right hemispherical bowl, and the sphere being located in the bowl.
[0010] The utility model adopts an assembled shell design, which is composed of a left half and a right half. This design can be used to process the entire thrust rod joint without placing the main shaft with the ball in the mold before the injection molding of the elastic part. Instead, the ball is placed in the shell of the thrust rod joint after the elastic part is processed. Therefore, when the elastic part on the shell is vulcanized, the ball will not be affected to cause the ball to shrink or deform, thereby ensuring the coordination between the ball and the ball of the shell, thereby ensuring the processing quality of the thrust rod joint and the stability of the car during driving. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a front view of a thrust rod joint housing embodiment of the utility model;
[0012] Figure 2 for Figure 1 Left view of
[0013] Figure 3 for Figure 2 A three-dimensional view of the center left retaining ring;
[0014] Figure 4 for Figure 2 A stereoscopic image of the left and right hemisphere bowls in the assembled state;
[0015] Figure 5 is a cross-sectional view of the first thrust rod joint;
[0016] Figure 6 is a cross-sectional view of the second thrust rod joint;
[0017] Among them: 1. left spindle hole, 2. left retaining ring, 3. right retaining ring, 4. left hemispherical bowl, 5. right hemispherical bowl, 6. left elastic part, 7. right elastic part, 8. external thread, 9. internal thread, 10. right spindle hole, 11. shaft body, 12. sphere. DETAILED DESCRIPTION
[0018] In the utility model Figure 1 The up, down, left, right, front and back directions of each embodiment are defined.
[0019] The structure of the thrust rod joint housing in this embodiment is as follows:
[0020] like Figure 1-4 As shown, the thrust rod joint housing includes a left half housing assembly and a right half housing assembly.
[0021] Among them, the left half shell assembly is composed of a left retaining ring 2, a left hemispherical bowl 4 and a left elastic member 6, and the right half shell assembly is composed of a right retaining ring 3, a right hemispherical bowl 5 and a right elastic member 7.
[0022] The circumference of the left retaining ring 2 and the right retaining ring 3 is a cylindrical surface, the end surfaces of the two that are far from each other are planes, and the surfaces adjacent to each other (i.e., the inner surfaces of the left retaining ring 2 and the right retaining ring 2) are planes or arc surfaces. The left retaining ring 2 and the right retaining ring 3 have the same shape and size, but are relatively and symmetrically arranged during installation. A ball bowl is arranged between the left retaining ring 2 and the right retaining ring 3, and the ball bowl is composed of a left hemispherical bowl 4 and a right hemispherical bowl 5. The left end of the left hemispherical bowl 4 has a left spindle hole 1, and the right end of the right hemispherical bowl 5 has a spindle hole 10.
[0023] In the left half housing assembly, a left elastic member 6 is filled between the left hemispherical bowl 4 and the left retaining ring 2. The left end surface of the left elastic member 6 is flush with the left end surfaces of the left hemispherical bowl 4 and the left retaining ring 2, and its circumference is flush with the circumference of the left retaining ring 2, together forming a cylindrical surface. The left elastic member 6 is fixedly connected to the left hemispherical bowl 4 and the left retaining ring 2 respectively. The right end surface of the left hemispherical bowl 4 has a connecting portion protruding from the right end surface of the left elastic member 6, and the connecting portion has an external thread 8.
[0024] In the right half shell assembly, a right elastic member 7 is filled between the right hemispherical bowl 5 and the right retaining ring 3. The right end surface of the right elastic member 7 is flush with the right end surfaces of the right hemispherical bowl 5 and the right retaining ring 3, and its circumference is flush with the circumference of the right retaining ring 3, together forming a cylindrical surface. The right elastic member 7 is fixedly connected to the right hemispherical bowl 5 and the right retaining ring 3 respectively. The left end surface of the right hemispherical bowl 5 is flush with the left end surface of the right elastic member 7, and the inner surface of the right hemispherical bowl 5 near its left end surface has an internal thread 9 screwed to the external thread 8 on the connecting portion of the left hemispherical bowl 4.
[0025] Except for the left spindle hole 1 and the right spindle hole 10, the inner surface formed by the right hemispherical bowl 5 and the left hemispherical bowl 4 being screwed tightly together is a spherical surface. At this time, the right end surface of the left elastic member 6 contacts the left end surface of the right elastic member 7. In order to make the left elastic member 6 and the right elastic member 7 tightly combined, an adhesive layer can also be provided between the right end surface of the left elastic member 6 and the left end surface of the right elastic member 7.
[0026] In order to make the left elastic member 6 and the right elastic member 7 effectively contact after the left hemispherical bowl 4 and the right hemispherical bowl 5 are screwed together, the right end surface of the left hemispherical bowl 4 and the left elastic member 6 is located on the left side of the vertical section NN passing through the center of the bowl, and the right end surface of the connecting portion is located on the right side of the section NN. The positions of the left end surfaces of the right hemispherical bowl 5 and the right elastic member 7 correspond to the positions of the right end surfaces of the left hemispherical bowl 4 and the left elastic member 6.
[0027] During processing, the outer surface of the ball bowl and the inner surface of the retaining ring may be roughened to enhance the firmness of the elastic member after being combined with the two.
[0028] The structure of the thrust rod joint made by using the thrust rod joint housing of the above structure is as follows:
[0029] like Figure 5 , 6 As shown, the embodiment of the thrust rod joint includes a main shaft, and the two ends of the shaft body 11 of the main shaft have mounting holes, and a ball 12 made of plastic material is fixed in the middle of the shaft body 11. The plastic material can be nylon or other well-known materials. The ball 12 is installed in the thrust rod joint housing mentioned above, and the two ends of the shaft body 11 pass through the main shaft holes of the left hemisphere bowl and the right hemisphere bowl respectively. The ball 12 is located in the ball bowl and forms a friction pair with the ball bowl.
[0030] Figure 5 and Figure 6 Two forms of the main axis are shown in:
[0031] Figure 5 The main shaft in the invention is composed of its shaft body 11 and the sphere 12 thereon. The middle part of the shaft body 11 is provided with a reinforcing plate integrated therewith, which together with the plastic material parts on both sides thereof constitute the sphere 12, and the peripheral surface of the reinforcing plate is a part of the surface of the sphere 12.
[0032] Figure 6 The main shaft in the invention is composed of its shaft body 11 and the sphere 12 thereon. The middle part of the shaft body 11 is provided with a reinforcing plate integrated therewith, the plastic material covers a part of the reinforcing plate and the shaft body 11, and the outer surface of the sphere 12 is all made of the plastic material.
[0033] During processing, the outer shell and the main shaft are processed separately. When processing the outer shell, the elastic material (such as rubber) is injected into the space between the left hemispherical bowl 4 and the left retaining ring 2 and between the right hemispherical bowl 5 and the right retaining ring 3 by using a mold, and then vulcanized to obtain the left and right halves of the outer shell. The sphere 12 is placed between the left hemispherical bowl 4 and the right hemispherical bowl 5, and the main shaft passes through the main shaft hole 10 on the left hemispherical bowl 4 and the right hemispherical bowl 5, and is screwed together with the external thread 8 on the connecting part and the internal thread 9 on the inner surface of the right hemispherical bowl 5, and the left hemispherical bowl 4 and the right hemispherical bowl 5 are tightened to complete the assembly of the thrust rod joint.
[0034] Before screwing together, adhesive may be applied to the contact surface of the left elastic member 6 and the right elastic member 7 to make the connection between the two more secure.
[0035] The utility model adopts the design of an assembled ball bowl, which is provided with a left hemisphere bowl and a right hemisphere bowl, and the two ball bowls are connected by threads; during the assembly process, vulcanization processes can be carried out separately, and after completion, the thrust rod ball is placed in the ball bowl and fixed by tightening the threads, thereby avoiding the influence of vulcanization and other processes on the thrust rod ball.
Claims
1. A thrust rod joint housing, comprising a left retaining ring and a right retaining ring respectively located at two ends thereof, and a ball bowl located between the two retaining rings and having a spherical inner surface, wherein an elastic member is filled between the ball bowl and the left retaining ring and the right retaining ring, wherein: The ball bowl is composed of a left hemispherical bowl and a right hemispherical bowl which are connected to each other and have a main shaft hole respectively, and the elastic member is composed of a left elastic member and a right elastic member, wherein the left elastic member is fixedly connected to the left hemispherical bowl and the left retaining ring, the right elastic member is fixedly connected to the right hemispherical bowl and the right retaining ring, and the adjacent surfaces of the left elastic member and the right elastic member are connected to each other.
2. The thrust rod joint housing according to claim 1, characterized in that: The left hemispherical bowl and the right hemispherical bowl are connected via threads.
3. The thrust rod joint housing according to claim 2, characterized in that: The left hemispherical bowl is provided with a connecting portion with an external thread protruding from the right end surface of the left elastic member. The left end surface of the right hemispherical bowl is flush with the left end surface of the right elastic member, and the inner surface close to its end surface is provided with an internal thread screwed to the connecting portion.
4. The thrust rod joint housing according to claim 1, 2 or 3, characterized in that: The left elastic member and the right elastic member are connected by direct contact or by gluing.
5. A thrust rod joint, comprising a main shaft, on the shaft of which a sphere made of a plastic material is fixed, characterized in that: The sphere is installed in the thrust rod joint housing as claimed in any one of claims 1 to 4, and the two ends of the shaft body pass through the main shaft holes of the left hemispherical bowl and the right hemispherical bowl respectively, and the sphere is located in the bowl.