Cross universal joint with long service life
By using protective structure and shock absorbers in the cross universal joint, the problem of parts being easily damaged during external impact and vibration of traditional cross universal joints is solved, extending service life, improving durability and stability, and reducing vibration and noise.
Patent Information
- Application Number
- CN202422347511.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-25
AI Technical Summary
When the traditional cross joints are impacted or vibrated externally, internal parts are easily damaged, resulting in a shortened system life and lack of shock absorption and isolation functions, which affects the comfort of the working environment and the stability of the equipment.
The protective structure is adopted, including a support layer, a buffer layer and a wear-resistant layer, combined with rubber pads, placement grooves and multiple shock absorbers, and the balls are arranged in an annular arrangement inside the cage to form a good movement space and effectively isolate and protect the rotating structure.
It extends the service life of the cross universal joint, reduces damage to the bearing frame and other parts by external shocks and vibrations, improves the durability and stability of the system, reduces vibration and noise of the rotating structure during operation, and improves the comfort of the working environment.
Smart Images
Figure CN222963205U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of universal joints, in particular to a cross universal joint with a long service life. Background Art
[0002] A cross universal joint is a mechanical device used to transmit rotational power. It usually consists of several intersecting shafts and can transmit torque in multiple directions. In many industrial and automotive applications, the cross universal joint is used to connect drive shafts, enabling them to transmit power at various angles and directions while allowing a certain degree of axial displacement and angular offset.
[0003] Since the internal parts of traditional cross universal joints are prone to damage when subjected to external impacts or vibrations, resulting in a shortened system life, they may not effectively reduce the vibrations and noises generated during rotation, lack shock absorption and isolation functions, and affect the comfort of the working environment and the stability of the equipment. Therefore, those skilled in the art have provided a cross universal joint with a long service life to solve the problems raised in the above background art. Content of the Utility Model
[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a cross universal joint with a long service life is proposed. By adopting a protective structure, including a support layer, a buffer layer and a wear-resistant layer, such a design can not only provide support and fixation, but also reduce the damage of external impacts and vibrations to the bearing housing and other parts, while improving the durability and stability of the system. Through rubber pads, placement grooves and multiple shock absorbers, the rubber pads can absorb and disperse the impacts and vibrations generated during rotation, reduce the interaction between the rotating structure and the external environment, protect the rotating structure and surrounding equipment, and the shock absorbers can absorb and dissipate the impact energy, reduce the vibrations and noises generated when the rotating structure is operating, and improve the comfort of the working environment. Through the cage, balls and cavities, the balls are arranged in a ring inside the cage. This design provides a good movement space, effectively isolates and protects the rotating structure, maintains its cleanliness and stability, and improves the smoothness and efficiency of rotation.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A cross universal joint with a long service life, including a cross universal joint body. Sealing rings are provided on the upper end face, lower end face and both side walls of the cross universal joint body. One end of each of the four sealing rings is provided with a bearing housing. Protective structures are provided on the outer side walls of the four bearing housings. The centers of one side walls of the four bearing housings are provided with rubber rings. One end of each of the four rubber rings is provided with a protective shell. Rotating structures are provided inside the four protective shells. Buffer and shock-absorbing structures are provided at one ends of the four rotating structures.
[0006] Through the above technical solution, a protective structure is adopted, including a support layer, a buffer layer and a wear-resistant layer. Such a design can not only provide support and fixation functions, but also reduce the damage to the bearing housing and other parts caused by external impacts and vibrations. At the same time, the durability and stability of the system are improved. Through the rubber pad, the placement groove and multiple shock absorbers, the rubber pad can absorb and disperse the impacts and vibrations generated during rotation, reduce the interaction between the rotating structure and the external environment, protect the rotating structure and the surrounding equipment. The shock absorbers can absorb and dissipate the impact energy, reduce the vibrations and noises generated when the rotating structure is operating, and improve the comfort of the working environment. Through the cage, the balls and the cavity, the balls are arranged in a circular pattern inside the cage. This design provides a good movement space, effectively isolates and protects the rotating structure, keeps it clean and stable, and improves the smoothness and efficiency of rotation.
[0007] Further, the protective structure includes a support layer, a buffer layer and a wear-resistant layer. The support layer is sleeved on the outer wall of the bearing housing. The buffer layer is sleeved on the outer wall of the support layer. The wear-resistant layer is sleeved on the outer wall of the buffer layer.
[0008] Through the above technical solution, the support layer plays a role in support and fixation, can stably support the structures of other layers, and maintain the stability and reliability of the overall structure. The buffer layer has a buffering effect, can absorb external impacts and vibrations, reduce the damage to the bearing housing and other parts, and thus extends the service life of the entire system. The wear-resistant layer has the characteristic of wear resistance, can effectively reduce friction and wear, protect the bearing housing and other parts, and improve the durability and stability of the system.
[0009] Further, the rotating structure includes a cage, a plurality of balls and a cavity. The cavity is arranged inside the protective shell. The cage is arranged inside the cavity. A plurality of the balls are arranged in a circular pattern inside the cage.
[0010] Through the above technical solution, the cavity can provide a good movement space for the cage and the balls, and play a role in isolation and protection. It can prevent external dust, water vapor and other substances from invading, keep the rotating structure clean and stable. The cage plays a role in fixing and supporting the balls. It can ensure that the balls maintain a stable position and spacing during operation, thus ensuring the smooth operation of the entire rotating structure. The balls, as the key components of the rotating structure, can bear and transmit forces, and reduce friction during rotation. This arrangement can improve the smoothness and efficiency of rotation.
[0011] Further, the buffer and shock absorption structure includes a rubber pad, a placement groove and a plurality of shock absorbers. The rubber pad is arranged at one end of the rotating structure. The placement groove is arranged inside the rubber pad. A plurality of the shock absorbers are arranged in a rectangular pattern inside the placement groove.
[0012] Through the above technical solution, the rubber pad, as a buffer material, can absorb and disperse the impact and vibration generated during rotation. It can reduce the interaction between the rotating structure and the external environment, protect the rotating structure and surrounding equipment. The placement groove is used to fix and support multiple shock absorbers. Through the setting of the placement groove, the shock absorbers can be stably installed inside the rubber pad and effectively play the shock absorption role. The shock absorbers are key components of the buffer shock absorption structure. The shock absorbers can absorb and dissipate the impact energy, reduce the vibration and noise generated during the operation of the rotating structure, protect the equipment and improve the comfort of the working environment.
[0013] Further, a plurality of the balls are rotatably connected inside the cage;
[0014] Through the above technical solution, the balls can effectively support and share the weight of the rotating structure, reduce the friction and resistance during rotation. This structure makes the rotation more stable, reduces the energy loss and equipment wear, thereby extending the service life of the equipment and improving the operation efficiency.
[0015] Further, the materials of the four sealing rings are all silica gel;
[0016] Through the above technical solution, it has excellent sealing performance and high temperature resistance, can effectively prevent the leakage of lubricating oil or liquid, and prevent external impurities from entering the bearing system. This helps to protect the bearings and lubricating oil, reduce the frequency of maintenance and replacement, and improve the reliability and stability of the equipment.
[0017] Further, the materials of the four bearing brackets are all stainless steel;
[0018] Through the above technical solution, stainless steel has excellent corrosion resistance and mechanical strength, and can maintain stable performance in various harsh environments. This material selection ensures that the bearing bracket is not easy to rust and deform during long-term use, thus maintaining the accurate positioning and good operation of the bearing, which further enhances the durability and reliability of the equipment.
[0019] The utility model has the following beneficial effects:
[0020] 1. In the utility model, the cross universal joint with a long service life adopts a protection structure, including a support layer, a buffer layer and a wear-resistant layer. Such a design can not only provide support and fixation functions, but also reduce the damage of external impact and vibration to the bearing bracket and other parts, and at the same time improve the durability and stability of the system.
[0021] 2. In the present utility model, through the rubber pad, the placement groove and multiple shock absorbers, the rubber pad can absorb and disperse the impact and vibration generated during the rotation process, reduce the interaction between the rotating structure and the external environment, protect the rotating structure and the surrounding equipment, and the shock absorbers can absorb and dissipate the impact energy, reduce the vibration and noise generated when the rotating structure is operating, and improve the comfort of the working environment.
[0022] 3. In the present utility model, through the cage, the balls and the cavity, the balls are arranged in a circular pattern inside the cage. This design provides a good movement space, effectively isolates and protects the rotating structure at the same time, maintains its cleanliness and stability, and improves the smoothness and efficiency of rotation. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is a three-dimensional view of a cross universal joint with a long service life proposed by the present utility model;
[0024] Figure 2 is a front cross-sectional view of a cross universal joint with a long service life proposed by the present utility model;
[0025] Figure 3 is Figure 2 an enlarged schematic view of part A in
[0026] Figure 4 is Figure 2 an enlarged schematic view of part B in
[0027] Legend Explanation:
[0028] 1. Cross universal joint body; 2. Bearing housing; 3. Protective structure; 301. Support layer; 302. Buffer layer; 303. Wear-resistant layer; 4. Sealing ring; 5. Rubber ring; 6. Buffer and shock absorption structure; 601. Rubber pad; 602. Placement groove; 603. Shock absorber; 7. Rotating structure; 701. Cage; 702. Balls; 703. Cavity; 8. Protective shell. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0030] Refer to Figures 1-4, An embodiment provided by the present utility model: A cross universal joint with a long service life, comprising a cross universal joint body 1. Sealing rings 4 are provided on the upper end face, lower end face and both side walls of the cross universal joint body 1, which can effectively prevent the leakage of lubricating oil or liquid and prevent external impurities from entering the inside of the cross universal joint. One end of each of the four sealing rings 4 is provided with a bearing bracket 2, and protective structures 3 are provided on the outer side walls of the four bearing brackets 2, which can effectively protect the bearing brackets 2 and prevent external collisions and damages, thereby prolonging the service life of the bearings. At the center of one side wall of each of the four bearing brackets 2, rubber rings 5 are provided, which provide buffering and shock-absorbing effects, reduce vibrations and impacts during rotation, and protect the rotating structure 7 and other key components. One end of each of the four rubber rings 5 is provided with a protective shell 8, which provides good support and positioning, ensuring the stability and reliability of the rotating structure 7. Rotating structures 7 are provided inside each of the four protective shells 8, and buffer and shock-absorbing structures 6 are provided at one end of each of the four rotating structures 7, improving the durability and stability of the cross universal joint and reducing component wear and damage caused by vibrations and impacts.
[0031] The materials of the four sealing rings 4 are all silica gel, which has excellent sealing performance and high temperature resistance. It can effectively prevent the leakage of lubricating oil or liquid and prevent external impurities from entering the bearing system, which helps to protect the bearings and lubricating oil, reduce the frequency of maintenance and replacement, and improve the reliability and stability of the equipment. The materials of the four bearing brackets 2 are all stainless steel. Stainless steel has excellent corrosion resistance and mechanical strength and can maintain stable performance in various harsh environments. This material selection ensures that the bearing brackets 2 are not prone to rust and deformation during long-term use, thus maintaining the accurate positioning and good operation of the bearings, which further enhances the durability and reliability of the equipment.
[0032] The protective structure 3 includes a support layer 301, a buffer layer 302 and a wear-resistant layer 303. The support layer 301 is sleeved on the outer side wall of the bearing bracket 2, the buffer layer 302 is sleeved on the outer side wall of the support layer 301, and the wear-resistant layer 303 is sleeved on the outer side wall of the buffer layer 302. The support layer 301 plays a role of support and fixation, can stably support the structures of other layers, and maintain the stability and reliability of the overall structure. The buffer layer 302 has a buffering effect, can absorb external impacts and vibrations, reduce damage to the bearing bracket 2 and other parts, thereby prolonging the service life of the entire system. The wear-resistant layer 303 has the characteristic of wear resistance, can effectively reduce friction and wear, protect the bearing bracket 2 and other parts, and improve the durability and stability of the system.
[0033] The rotating structure 7 includes a cage 701, a plurality of balls 702, and a cavity 703. The cavity 703 is arranged inside the protective shell 8. The cage 701 is arranged inside the cavity 703. The plurality of balls 702 are arranged in a ring inside the cage 701. The cavity 703 can provide a good movement space for the cage 701 and the balls 702, and play a role of isolation and protection. It can prevent external substances such as dust and water vapor from invading, keep the rotating structure 7 clean and stable. The cage 701 plays a role of fixing and supporting the balls 702. It can ensure that the balls 702 maintain stable positions and spacings during operation, thus ensuring the smooth operation of the entire rotating structure 7. The balls 702, as the key components of the rotating structure 7, can bear and transmit forces, and reduce friction during rotation. This arrangement can improve the smoothness and efficiency of rotation. The plurality of balls 702 are rotatably connected inside the cage 701. The balls 702 can effectively support and share the weight of the rotating structure 7, reduce the friction and resistance during rotation. This structure makes the rotation more stable, reduces energy loss and equipment wear, thereby prolonging the service life of the equipment and improving the operation efficiency.
[0034] The buffer and shock absorption structure 6 includes a rubber pad 601, a placement groove 602, and a plurality of shock absorbers 603. The rubber pad 601 is arranged at one end of the rotating structure 7. The placement groove 602 is arranged inside the rubber pad 601. The plurality of shock absorbers 603 are arranged in a rectangle inside the placement groove 602. The rubber pad 601, as a buffer material, can absorb and disperse the impact and vibration generated during rotation. It can reduce the interaction between the rotating structure 7 and the external environment, protect the rotating structure 7 and surrounding equipment. The placement groove 602 is used to fix and support the plurality of shock absorbers 603. Through the setting of the placement groove 602, the shock absorbers 603 can be stably installed inside the rubber pad 601 and effectively play the shock absorption role. The shock absorbers 603 are the key components of the buffer and shock absorption structure 6. The shock absorbers 603 can absorb and dissipate the impact energy, reduce the vibration and noise generated when the rotating structure 7 is operating, protect the equipment and improve the comfort of the working environment.
[0035] Working principle: The support layer 301 plays a role of support and fixation, can stably support the structures of other layers, and maintain the stability and reliability of the overall structure. The buffer layer 302 has a buffering effect, can absorb external impacts and vibrations, reduce the damage to the bearing housing 2 and other parts, thereby prolonging the service life of the entire system. The wear-resistant layer 303 has the characteristic of wear resistance, can effectively reduce friction and wear, protect the bearing housing 2 and other parts, and improve the durability and stability of the system. The cavity 703 can provide a good movement space for the cage 701 and the balls 702, and play a role of isolation and protection. It can prevent external substances such as dust and water vapor from invading, keep the rotating structure 7 clean and stable.
[0036] The cage 701 plays a role in fixing and supporting the balls 702. It can ensure that the balls 702 maintain a stable position and spacing during operation, thus ensuring the smooth operation of the entire rotating structure 7. The balls 702, as the key components of the rotating structure 7, can withstand and transmit forces and reduce friction during rotation. This arrangement can improve the smoothness and efficiency of rotation. The rubber pad 601, as a buffer material, can absorb and disperse the impacts and vibrations generated during rotation. It can reduce the interaction between the rotating structure 7 and the external environment, protect the rotating structure 7 and the surrounding equipment. The placement groove 602 is used to fix and support multiple shock absorbers 603. Through the setting of the placement groove 602, the shock absorbers 603 can be stably installed inside the rubber pad 601 and effectively play the shock-absorbing role. The shock absorbers 603 are the key components of the buffer shock-absorbing structure 6. The shock absorbers 603 can absorb and dissipate the impact energy, reduce the vibrations and noises generated by the rotating structure 7 during operation, protect the equipment and improve the comfort of the working environment.
[0037] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A cross universal joint with a long service life, comprising a cross universal joint body (1), characterized in that: The upper end surface, the lower end surface and the two side walls of the cross universal joint body (1) are all provided with sealing rings (4); one end of each of the four sealing rings (4) is provided with a bearing frame (2); the outer side walls of each of the four bearing frames (2) are all provided with a protective structure (3); a rubber ring (5) is provided at the center of one side wall of each of the four bearing frames (2); one end of each of the four rubber rings (5) is provided with a protective shell (8); a rotating structure (7) is provided inside each of the four protective shells (8); and one end of each of the four rotating structures (7) is provided with a buffering and shock absorbing structure (6).
2. A cross universal joint with a long service life according to claim 1, characterized in that: The protective structure (3) comprises a supporting layer (301), a buffer layer (302) and a wear-resistant layer (303); the supporting layer (301) is sleeved on the outer wall of the bearing frame (2); the buffer layer (302) is sleeved on the outer wall of the supporting layer (301); and the wear-resistant layer (303) is sleeved on the outer wall of the buffer layer (302).
3. A cross universal joint with a long service life according to claim 1, characterized in that: The rotating structure (7) comprises a retaining frame (701), a plurality of balls (702) and a cavity (703); the cavity (703) is arranged inside the protective shell (8); the retaining frame (701) is arranged inside the cavity (703); and the plurality of balls (702) are arranged inside the retaining frame (701) in a ring-shaped arrangement.
4. A cross universal joint with a long service life according to claim 1, characterized in that: The buffer shock absorbing structure (6) comprises a rubber pad (601), a placement groove (602) and a plurality of shock absorbers (603); the rubber pad (601) is arranged at one end of the rotating structure (7); the placement groove (602) is arranged inside the rubber pad (601); and the plurality of shock absorbers (603) are arranged in a rectangular shape inside the placement groove (602).
5. A cross universal joint with a long service life according to claim 3, characterized in that: The plurality of balls (702) are rotatably connected inside the retaining frame (701).
6. A cross universal joint with a long service life according to claim 1, characterized in that: The four sealing rings (4) are all made of silicone.
7. A cross universal joint with a long service life according to claim 1, characterized in that: The four bearing frames (2) are all made of stainless steel.