Separable universal bearing
By designing a separable universal bearing, and utilizing the combination of convex and concave spherical surfaces and the setting of a separation groove, the problem of traditional universal bearings being difficult to disassemble and maintain is solved, enabling multi-angle and multi-dimensional rotation applications and making it suitable for a wider range of usage scenarios.
Patent Information
- Application Number
- CN202520449733.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Traditional universal bearings are difficult to disassemble and maintain, and cannot be used in various rotational scenarios with multiple angles and dimensions.
The design of separable universal bearings involves setting an outwardly convex spherical surface on the outside of the rolling bearing and an inwardly concave spherical surface on the inside of the universal base, along with symmetrical separation grooves on the universal base, allowing the rolling bearing to detach from the universal base at a fixed angle and direction.
It enables convenient disassembly and maintenance of bearings, supports flexible rotation in multiple dimensions and angles, and is suitable for a wider range of application scenarios.
Smart Images
Figure CN223594741U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of bearings, and particularly relates to a separable universal bearing. BACKGROUND
[0002] A bearing is generally composed of a bearing inner ring, a bearing outer ring and a rolling assembly arranged between the two, and this structure can only realize the rotation of a shaft in one-dimensional direction, that is, the self-rotation of the shaft relative to the shaft hole, and cannot realize the use scene in multiple angles and multiple dimensions, and the traditional universal bearing adopts a whole structure and is difficult to disassemble and maintain. CONTENT OF THE UTILITY MODEL
[0003] In order to solve the problem that the traditional universal bearing is difficult to disassemble and maintain in the prior art, the application provides a separable universal bearing.
[0004] The application is realized through the following technical scheme:
[0005] A separable universal bearing comprises a universal base and a rolling bearing which is separable from the universal base, the outer side of the rolling bearing is provided with an outer convex spherical surface, the inner side of the universal base is provided with an inner concave spherical surface for universal cooperation with the outer convex spherical surface, two separation grooves which are symmetrically arranged and extend inward along the axial direction of the universal base are arranged on the universal base, and the separation grooves are used for separating the rolling bearing from the universal base.
[0006] The separable universal bearing described above, the height of the separation groove is H, and gradually decreases from the outside to the inside.
[0007] The separable universal bearing described above, the separation groove extends inward to the middle part of the universal base.
[0008] The separable universal bearing described above, the maximum interval distance between the two symmetrically arranged separation grooves is S, the minimum interval distance is B, and the maximum diameter of the rolling bearing is L, wherein B<=L<S.
[0009] The separable universal bearing described above, the axial height of the rolling bearing is matched with the width of the separation groove, when the axial height of the rolling bearing is rotated to be flush with the separation groove, the rolling bearing is separated from the universal base in the direction of the separation groove, and when the axial height of the rolling bearing is rotated to be misaligned with the separation groove, the rolling bearing is kept in the universal rotation in the universal base.
[0010] The detachable universal bearing comprises a rolling bearing and a universal base, the rolling bearing comprises a bearing outer ring, a bearing inner ring, a plurality of steel balls between the bearing outer ring and the bearing inner ring, and a retainer for distributing the plurality of steel balls around the bearing outer ring at equal intervals, the inner side wall of the bearing outer ring is provided with a first track groove, and the outer side wall of the bearing inner ring is provided with a second track groove matched with the first track groove to form a rolling track for the steel balls.
[0011] The detachable universal bearing further comprises a dust cover for sealing the bearing inner ring and the bearing outer ring.
[0012] The detachable universal bearing further comprises a dust cover for sealing the bearing inner ring and the bearing outer ring.
[0013] The detachable universal bearing further comprises a dust cover for sealing the bearing inner ring and the bearing outer ring.
[0014] The detachable universal bearing further comprises a dust cover for sealing the bearing inner ring and the bearing outer ring.
[0015] Compared with the prior art, the detachable universal bearing has the following advantages:
[0016] The detachable universal bearing comprises a rolling bearing and a universal base, the rolling bearing comprises a bearing outer ring, a bearing inner ring, a plurality of steel balls between the bearing outer ring and the bearing inner ring, and a retainer for distributing the plurality of steel balls around the bearing outer ring at equal intervals, the inner side wall of the bearing outer ring is provided with a first track groove, and the outer side wall of the bearing inner ring is provided with a second track groove matched with the first track groove to form a rolling track for the steel balls. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0018] Figure 1 is a three-dimensional view of the detachable universal bearing in a universal connection state;
[0019] Figure 2 is an exploded view of Figure 1 ;
[0020] Figure 3 isFigure 1 the front view of the application;
[0021] Figure 4 the side view of the rolling bearing in the application;
[0022] Figure 5 the side view of the application; Figure 4 the sectional view at A-A in the application;
[0023] Figure 6 the side view of the application; Figure 1
[0024] Figure 7 the three-dimensional view of the application in the disengaged state;
[0025] Figure 8 the exploded view of the application; Figure 7
[0026] Figure 9 the front view of the application; Figure 7
[0027] Figure 10 the side view of the application; Figure 7
[0028] Figure 11 the front view of the gimbal base in the application;
[0029] Figure 12 the side view of the application; Figure 11
[0030] Figure 13 the three-dimensional sectional view at B-B in the application; Figure 12
[0031] the side view of the application; Figure 14 Figure 13
[0032] Figure 15 the rear view of the gimbal base in the application 2;
[0033] Figure 16 the three-dimensional sectional view at B-B in the application 2. Figure 12
DETAILED DESCRIPTION
[0034] In order to make the technical problems, technical solutions and beneficial effects of the application clearer, the application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and do not limit the application.
[0035] Please refer to Figures 1 to 16 The detachable universal bearing comprises a universal base 1 and a rolling bearing 2 detachably connected with the universal base 1, the outer side of the rolling bearing 2 is provided with an outer convex spherical surface 21, the inner side of the universal base 1 is provided with an inner concave spherical surface 11 for universal cooperation with the outer convex spherical surface 21, and two symmetrical separation grooves 12 extending inward along the axial direction of the universal base 1 are arranged on the universal base 1, and the separation grooves 12 are used for separating the rolling bearing 2 from the universal base 1.
[0036] The detachable universal bearing of the present application realizes the universal cooperation between the rolling bearing and the universal base by designing the rolling bearing and the universal base as detachable connection, and arranging the outer convex spherical surface on the outer side of the rolling bearing and the inner concave spherical surface on the inner side of the universal base, and the rolling bearing can be separated from the universal base at a fixed angle and direction by arranging two symmetrical separation grooves on the universal base. The problem that the integral structure of the traditional universal bearing is difficult to disassemble and maintain is solved, and the flexible rotation of the shaft in multiple dimensions and multiple angle directions is realized, which is suitable for more extensive use scenarios.
[0037] Further, as a preferred embodiment of the present application but not limited, the height of the separation groove 12 is H, and gradually decreases from outside to inside.
[0038] In the embodiment, while ensuring that the rolling bearing 2 can be smoothly disassembled through the separation groove 12, the overall structural strength of the universal base 1 is also effectively enhanced. Since the separation groove 12 is higher on the outside and lower on the inside, it provides a smooth transition path for the rolling bearing 2, making the disassembly process more smooth and reducing the risk of possible jamming or damage. It ensures that the rolling bearing 2 maintains a stable fitting state during universal rotation, avoiding the influence of too large or too small gap on the rotation performance of the bearing. Its working principle is that through the gradual height design of the separation groove 12, the rolling bearing 2 can be smoothly separated or installed when the width, i.e. the axial height, is flush with the separation groove 12, and when the axial height is misaligned with the separation groove 12, it is limited within the universal base 1 to realize universal rotation.
[0039] Further, as a preferred embodiment of the present application but not limited, the separation groove 12 extends inward to the middle part of the universal base 1.
[0040] In the embodiment, the depth extension ensures that the rolling bearing 2 has enough space to move during disassembly, thereby greatly simplifying the disassembly operation. Since the separation groove 12 extends to the middle part of the universal base 1, the rolling bearing 2 can more easily separate from the universal base 1 along the path of the separation groove 12, reducing the interference with other components and the potential risk of damage. Secondly, this design also enhances the stability of the universal bearing in the working state.
[0041] Further, as a preferred embodiment of the present application but not limited, the maximum interval distance between the two separation grooves 12 arranged symmetrically is S, the minimum interval distance is B, and the maximum diameter of the rolling bearing 2 is L, wherein B≤L<S.
[0042] In the present embodiment, sufficient space margin can be provided when the rolling bearing 2 is detached or installed, so that the operation process is more smooth and efficient, and the problems of jamming or loosening caused by excessive or insufficient gap are avoided; secondly, this design can ensure that the rolling bearing 2 can smoothly pass through the maximum interval distance S of the separation groove 12 when detached, and keep stable connection state through the minimum interval distance B when fitted, thereby improving the use reliability and safety of the bearing,
[0043] Further, as a preferred embodiment of the present application but not limited, the axial height of the rolling bearing 2 is adapted to the width of the separation groove 12, when the axial height of the rolling bearing 2 is rotated to be flush with the separation groove 12, the rolling bearing 2 is detached from the gimbal base 1 in the direction of the separation groove 12, and when the axial height of the rolling bearing 2 is rotated to be misaligned with the separation groove 12, the rolling bearing 2 is kept in the gimbal base 1 for gimbal rotation.
[0044] In the present embodiment, when the axial height of the rolling bearing 2 is rotated to be flush with the separation groove 12, it can easily detach from the gimbal base 1 along the path of the separation groove 12, which greatly simplifies the disassembly process and reduces maintenance time and cost. When the axial height of the rolling bearing 2 is rotated to be misaligned with the separation groove 12, it is effectively locked in the gimbal base 1, ensuring stable operation and reliable load transmission in the working state. This design cleverly utilizes the cooperation between the axial height and the width of the separation groove, and achieves stable installation and convenient disassembly of the bearing without additional locking mechanism.
[0045] Further, as a preferred embodiment of the present application but not limited, the rolling bearing 2 comprises a bearing outer ring 22, a bearing inner ring 23, a plurality of steel balls 24 located between the bearing outer ring 22 and the bearing inner ring 23, and a retainer 25 for distributing the plurality of steel balls 24 at equal intervals around the bearing outer ring, wherein the inner side wall of the bearing outer ring 22 is provided with a first track groove 221, and the outer side wall of the bearing inner ring 23 is provided with a second track groove 231 matched with the first track groove 221 to form a rolling track for the steel balls 24.
[0046] In this embodiment, due to the setting of the convex spherical surface, the wall thickness of the bearing outer ring is increased, so that the first track groove and the second track groove can be set to a larger inner diameter for placing larger size steel balls. The steel balls 24 roll between the first track groove 221 and the second track groove 231, realizing low friction rotation between the bearing inner ring 23 and the bearing outer ring 22, thereby efficiently transmitting torque and angle. The retainer 25 ensures the equidistant distribution of the steel balls 24, avoiding collision and wear between the steel balls, further improving the service life and stability of the bearing.
[0047] Further, as a preferred embodiment of the present scheme but not limited, it also includes a dust cover 26 for sealing the bearing inner ring 23 and the bearing outer ring 22.
[0048] In this embodiment, the dust cover 26 effectively prevents external dust, impurities and moisture from entering the bearing interior, thereby protecting the cleanliness and integrity of key components such as steel balls 24, track grooves and retainers 25. This sealing function reduces wear and failure caused by impurities, significantly improving the service life and reliability of the bearing. Especially in harsh working environments, such as high dust, humidity or corrosive gas.
[0049] Further, as a preferred embodiment of the present scheme but not limited, the outer surface of the dust cover 26 has a sealing coating.
[0050] In this embodiment, the sealing coating on the outer surface of the dust cover can significantly improve its sealing performance. By forming a dense barrier between the dust cover and the external environment, it effectively blocks the intrusion of sand, dust and other small particles, thereby prolonging the service life of the bearing and improving the running stability, especially in high dust or harsh working environments. Its working principle is that the sealing coating fills the possible small pores or uneven areas on the surface of the dust cover, while taking advantage of the flexibility and adhesion of the coating material to enhance the fit between the dust cover and the contact surface, reducing the gap to prevent contaminants from entering. In addition, the silicone sealing coating can be used in high temperature environments in the embodiment, not only improving the heat resistance, but also maintaining long-term elasticity, solving the problem of easy aging and cracking of traditional materials, or using fluororubber coating to enhance the chemical corrosion resistance, suitable for chemical or special gas environments, further expanding the application range of the dust cover, while the polyurethane coating is particularly suitable for high-speed rotating scenes due to its excellent wear resistance and tear resistance, effectively reducing the risk of sealing failure caused by friction.
[0051] Further, as a preferred embodiment of the present scheme but not limited, the two sides of the universal base 1 are respectively provided with a pair of mutually symmetrical separation grooves 12 extending inward along the axis direction.
[0052] In this embodiment, the separation groove 12 is arranged to enable more flexible bidirectional assembly and disassembly of the gimbal base in the axial direction. Through the inwardly extending slot design, the connecting component can be conveniently inserted or removed, thereby achieving rapid installation and disassembly and improving the maintenance efficiency of the equipment.
[0053] Further, as a preferred embodiment of the present scheme but not limited, the two pairs of separation grooves 12 on both sides of the gimbal base 1 are arranged in staggered positions.
[0054] In this embodiment 2, as shown in Figure 15 the flexibility and adjustability of the base are improved, enabling the base to better adapt to different angle installation requirements, while enhancing the stability and load capacity of the structure.
[0055] Further, as a preferred embodiment of the present scheme but not limited, the ratio of the radius length of the outer convex spherical surface 21 to the width length of the rolling bearing 2 is 9:10.
[0056] In this embodiment, this ratio ensures that the rolling bearing 2 has sufficient rotational freedom within the gimbal base 1, while maintaining the compactness and stability of the structure. The appropriate radius of the outer convex spherical surface 21 enables the rolling bearing 2 to smoothly rotate on the inner concave spherical surface 11 of the gimbal base 1 in multiple angles and dimensions, meeting the requirements of flexibility and maneuverability in complex mechanical systems.
[0057] Further, as a preferred embodiment of the present scheme but not limited, the ratio of the inner diameter, outer diameter and width of the rolling bearing 2 is 8:18:10.
[0058] In this embodiment, the inner diameter of the rolling bearing can be set to 8mm, the outer diameter can be set to 18mm, and the width can be set to 10mm, ensuring that the bearing has good structural compactness and space utilization while maintaining sufficient load capacity. The relatively small inner diameter and large outer diameter enable the bearing to withstand larger radial loads while providing sufficient contact area to disperse stress, improving the stability and durability of the bearing. The moderate width balances the rigidity and flexibility of the bearing, avoiding the risk of deformation due to too small width, and preventing unnecessary weight and space occupation due to too large width.
[0059] Further, as a preferred embodiment of the present scheme but not limited, the width of the rolling bearing 2 is greater than the width of the gimbal base 1.
[0060] In this embodiment, it can provide a larger contact area and support range when the rolling bearing 2 cooperates with the gimbal base 1, thereby enhancing the overall stability and load capacity of the bearing, especially when subjected to larger radial or axial loads, effectively dispersing stress and reducing the risk of local deformation or damage.
[0061] Further, as a preferred embodiment of the present application but not limited, the radius length of the outer convex spherical surface 21 is 9mm, and the width length of the rolling bearing 2 is 10mm.
[0062] The working principle of the present embodiment is as follows:
[0063] The separable universal bearing of the present application realizes the universal cooperation of the rolling bearing and the universal base by designing the rolling bearing and the universal base as separable connection, and setting the outer convex spherical surface on the outside of the rolling bearing and the inner concave spherical surface on the inside of the universal base. Meanwhile, the rolling bearing can be separated from the universal base at a fixed angle and direction by setting two symmetrical separation grooves on the universal base. The problem of difficult disassembly and maintenance of the traditional universal bearing integral structure is solved, and the flexible rotation of the shaft in multidimensional and multi-angle directions is also realized, which is suitable for more extensive use scenarios.
[0064] The above is the embodiment provided in combination with specific content, and it is not intended that the specific implementation of the present application is limited to these descriptions. Any similar structure or method as the present application, or any technical deduction or replacement made on the basis of the concept of the present application, should be considered as the protection scope of the present application.
Claims
1. A separable universal bearing, characterized in that, The device includes a universal base (1) and a rolling bearing (2) that is detachably connected to the universal base (1). The outer side of the rolling bearing (2) is configured as an outwardly convex spherical surface (21), and the inner side of the universal base (1) is configured as an inwardly concave spherical surface (11) for universal engagement with the outwardly convex spherical surface (21). The universal base (1) is provided with two mutually symmetrically arranged separation grooves (12) that extend inward along their axial direction. The separation grooves (12) allow the rolling bearing (2) to disengage from the universal base (1).
2. The separable universal bearing according to claim 1, characterized in that, The height of the separation tank (12) is H, and it gradually decreases from the outside to the inside.
3. A separable universal bearing according to claim 1, characterized in that, The separation groove (12) extends inward to the middle of the universal base (1).
4. A separable universal bearing according to claim 1, characterized in that, The maximum interval between the two symmetrically arranged separation grooves (12) is S, the minimum interval is B, and the maximum diameter of the rolling bearing (2) is L, where B≤L<S.
5. A separable universal bearing according to claim 1, characterized in that, The axial height of the rolling bearing (2) is adapted to the width of the separation groove (12). When the axial height of the rolling bearing (2) rotates to be flush with the separation groove (12), the rolling bearing (2) disengages from the universal base (1) in the direction of the separation groove (12). When the axial height of the rolling bearing (2) rotates to be misaligned with the separation groove (12), the rolling bearing (2) remains in the universal base (1) and rotates in all directions.
6. A separable universal bearing according to claim 1, characterized in that, The rolling bearing (2) includes an outer ring (22), an inner ring (23), a plurality of steel balls (24) located between the outer ring (22) and the inner ring (23), and a retainer (25) for distributing the plurality of steel balls (24) around the outer ring at equal intervals. The inner sidewall of the outer ring (22) is provided with a first track groove (221), and the outer sidewall of the inner ring (23) is provided with a second track groove (231) that cooperates with the first track groove (221) to form a rolling track for the steel balls (24).
7. A separable universal bearing according to claim 6, characterized in that, It also includes a dust cover (26) for sealing the inner ring (23) and the outer ring (22) of the bearing.
8. A separable universal bearing according to claim 7, characterized in that, The outer surface of the dust cover (26) has a sealing coating.
9. A separable universal bearing according to claim 1, characterized in that, The universal base (1) has a pair of symmetrically arranged separation grooves (12) on both sides, which extend inward along their axial direction.
10. A separable universal bearing according to claim 1, characterized in that, The width of the rolling bearing (2) is greater than the width of the universal base (1).