Separable universal bearing

Abstract

The invention belongs to the technical field of bearings, and particularly relates to a separable universal bearing. Comprising a universal base and a rolling bearing detachably connected with the universal base, the outer side of the rolling bearing is provided with an outwards-protruding spherical surface, the inner side of the universal base is provided with an inwards-concave spherical surface allowing the outwards-protruding spherical surface to be in universal fit, and the universal base is provided with two separating grooves which are symmetrically formed and extend inwards in the axis direction of the universal base; and the separation groove is used for separating the rolling bearing from the universal base. The outer convex spherical surface is arranged on the outer side of the rolling bearing, the inner concave spherical surface is arranged on the inner side of the universal base, universal matching of the rolling bearing and the universal base is achieved, and meanwhile the two symmetrical separation grooves are formed in the universal base, so that the rolling bearing can be separated from the universal base at a fixed angle and direction. The problem that an integral structure of a traditional universal bearing is difficult to disassemble and maintain is solved, flexible rotation of the shaft in multi-dimensional and multi-angle directions is achieved, and the universal bearing is suitable for wider application scenes.

Description

[Technical field] The present application belongs to the technical field of bearings, and in particular relates to a separable universal bearing. [Background technology] Bearings are usually composed of an inner ring, an outer ring and a rolling assembly arranged between the two. This structure can only realize the rotation of the shaft in one dimension, that is, the shaft rotates relative to the shaft hole, and cannot realize multi-angle and multi-dimensional usage scenarios. Traditional universal bearings adopt an integral structure, which is difficult to disassemble and maintain. [Summary of the invention] In order to solve the problem in the prior art that traditional universal bearings are difficult to disassemble and maintain, the present application provides a detachable universal bearing.

[0004] This application is implemented through the following technical solutions: A detachable universal bearing comprises a universal base and a rolling bearing detachably connected to the universal base, wherein the outer side of the rolling bearing is arranged as an outer convex spherical surface, and the inner side of the universal base is arranged as an inner concave spherical surface for universal fit of the outer convex spherical surface, and the universal base is provided with two separation grooves which are symmetrically arranged and extend inwardly along its axial direction, and the separation grooves are used for the rolling bearing to be separated from the universal base.

[0005] In the separable universal bearing as described above, the height of the separation groove is H, and gradually decreases from the outside to the inside.

[0006] In the separable universal bearing as described above, the separation groove extends inwardly to the middle of the universal base.

[0007] In the separable universal bearing as described above, the maximum spacing distance between the two separation grooves symmetrically arranged with each other is S, the minimum spacing distance is B, and the maximum diameter of the rolling bearing is L, wherein B≤L<S.

[0008] In a separable universal bearing as 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 separates from the universal base in the direction of the separation groove. When the axial height of the rolling bearing is rotated to be misaligned with the separation groove, the rolling bearing remains in the universal base for universal rotation.

[0009] A separable universal bearing as described above, the rolling bearing includes a bearing outer ring, a bearing inner ring, a plurality of steel balls located 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 that cooperates with the first track groove to form a rolling track for the steel balls.

[0010] The separable universal bearing as described above further includes a dust cover for sealing the bearing inner ring and the bearing outer ring.

[0011] In the separable universal bearing as described above, the outer surface of the dust cover has a sealing coating.

[0012] In the separable universal bearing as described above, a pair of separation grooves are respectively provided on both sides of the universal base, which are symmetrically arranged with each other and extend inwardly along the axial direction thereof.

[0013] In the separable universal bearing as described above, the width of the rolling bearing is greater than the width of the universal base.

[0014] Compared with the prior art, this application has the following advantages: The present application discloses a detachable universal bearing, which realizes the universal fit of the rolling bearing and the universal base by designing the rolling bearing and the universal base to be detachably connected, and setting an outer convex spherical surface on the outer side of the rolling bearing and an inner concave spherical surface on the inner side of the universal base. At the same time, by setting two symmetrical separation grooves on the universal base, the rolling bearing can be separated from the universal base at a fixed angle and direction. 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 angles is realized, which is suitable for a wider range of usage scenarios.

Brief Description of the Drawings

[0016] Figure 1 is a three-dimensional stereogram of an embodiment of the present application in a universally connected state; Figure 2 yes Figure 1 Exploded view of; Figure 3 yes Figure 1 The main view; Figure 4is a side view of a rolling bearing in an embodiment of the present application; Figure 5 yes Figure 4 Cross-sectional view at AA in the middle; Figure 6 yes Figure 1 Side view of Figure 7 is a three-dimensional stereogram in a disengaged state in an embodiment of the present application; Figure 8 yes Figure 7 Exploded view of; Fig. 9 yes Figure 7 The main view; Fig.10 yes Figure 7 Side view of Fig.11 is a front view of the universal base in the embodiment of the present application; Fig.12 yes Fig.11 Side view of Fig.13 yes Fig.12 Three-dimensional cross-section at the middle BB; Fig.14 yes Fig.13 Side view of Fig.15 is a rear view of the universal base in Example 2 of the present application; Fig.16 This is Example 2 of the present application Fig.12 Three-dimensional cross-section diagram at BB in the middle. [Specific implementation method] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0018] See also Figures 1 to 16 A detachable universal bearing comprises a universal base 1, and a rolling bearing 2 detachably connected to the universal base 1, the outer side of the rolling bearing 2 is arranged as an outer convex spherical surface 21, the inner side of the universal base 1 is arranged as an inner concave spherical surface 11 for universal fit of the outer convex spherical surface 21, the universal base 1 is provided with two separation grooves 12 which are symmetrically arranged and extend inwardly along the axial direction thereof, and the separation grooves 12 are provided for the rolling bearing 2 to be separated from the universal base 1.

[0019] The present application discloses a detachable universal bearing, which realizes the universal fit of the rolling bearing and the universal base by designing the rolling bearing and the universal base to be detachably connected, and setting an outer convex spherical surface on the outer side of the rolling bearing and an inner concave spherical surface on the inner side of the universal base. At the same time, by setting two symmetrical separation grooves on the universal base, the rolling bearing can be separated from the universal base at a fixed angle and direction. 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 angles is realized, which is suitable for a wider range of usage scenarios.

[0020] Furthermore, as a preferred implementation of the present solution but not a limitation, the height of the separation groove 12 is H, and gradually decreases from the outside to the inside.

[0021] In this 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 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 smoother and reducing the risk of possible jamming or damage. Ensure that the rolling bearing 2 maintains a stable fit during universal rotation to avoid affecting the bearing's rotation performance due to excessive or too small clearance. Its working principle is that through the gradual height design of the separation groove 12, the rolling bearing 2 can be smoothly detached or installed when the width, that is, the axial height, is flush with the separation groove 12, and when the axial height is misaligned with the separation groove 12, it is restricted in the universal base 1 to achieve universal rotation.

[0022] Further, as a preferred implementation of the present solution but not a limitation, the separation groove 12 extends inwardly to the middle of the universal base 1 .

[0023] In this embodiment, the depth extension ensures that the rolling bearing 2 has enough space to move during the disassembly process, thereby greatly simplifying the disassembly operation. Since the separation groove 12 extends all the way to the middle of the universal base 1, the rolling bearing 2 can more easily detach from the universal base 1 along the path of the separation groove 12, reducing interference with other components and potential damage risks. Secondly, this design also enhances the stability of the universal bearing in the working state.

[0024] Furthermore, as a preferred implementation of the present solution but not a limitation, the maximum spacing distance between the two separation grooves 12 symmetrically arranged with each other is S, the minimum spacing distance is B, and the maximum diameter of the rolling bearing 2 is L, wherein B≤L<S.

[0025] In this embodiment, sufficient space margin can be provided when the rolling bearing 2 is disengaged or installed, making the operation process smoother and more efficient, while avoiding the problem of stagnation or loosening caused by too large or too small a gap; secondly, this design can ensure that the rolling bearing 2 can smoothly pass the maximum spacing distance S of the separation groove 12 when disengaged, and maintain a stable connection state through the limitation of the minimum spacing distance B in the mating state, thereby improving the reliability and safety of the bearing. Furthermore, as a preferred implementation mode of the present invention but not a limitation, 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 separated from the universal base 1 in the direction of the separation groove 12. When the axial height of the rolling bearing 2 is rotated to be misaligned with the separation groove 12, the rolling bearing 2 remains in the universal base 1 for universal rotation.

[0026] In this embodiment, when the axial height of the rolling bearing 2 is rotated to be flush with the separation groove 12, it can be easily separated from the universal base 1 along the path of the separation groove 12. This feature 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 universal base 1, ensuring stable operation and reliable load transfer in the working state. This design cleverly utilizes the matching relationship between the axial height and the width of the separation groove, and can achieve stable installation and convenient disassembly of the bearing without an additional locking mechanism.

[0027] Furthermore, as a preferred embodiment of the present invention but not a limitation, the rolling bearing 2 includes 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 around the bearing outer ring at equal intervals, the inner wall of the bearing outer ring 22 is provided with a first track groove 221, and the outer wall of the bearing 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.

[0028] In this embodiment, due to the setting of the convex spherical surface, the wall thickness of the outer ring of the bearing is increased, so that the first track groove and the second track groove can be set to a larger inner diameter for placing a larger size of steel ball, and the steel ball 24 rolls 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, avoids collision and wear between the steel balls, and further improves the service life and stability of the bearing.

[0029] Furthermore, as a preferred implementation manner of the present solution but not limiting, a dust cover 26 for sealing the bearing inner ring 23 and the bearing outer ring 22 is also included.

[0030] In this embodiment, the dust cover 26 effectively prevents external dust, impurities and moisture from entering the bearing, thereby protecting the cleanliness and integrity of key components such as the steel ball 24, the track groove and the retainer 25. This sealing effect reduces wear and failure caused by the intrusion of impurities, and significantly improves the service life and reliability of the bearing, especially in harsh working environments, such as those with high dust, moisture or corrosive gases.

[0031] Further, as a preferred implementation of the present solution but not limiting, the outer surface of the dust cover 26 has a sealing coating.

[0032] In this embodiment, a sealing coating is provided on the outer surface of the dust cover, which can significantly improve its sealing performance. By forming a dense barrier between the dust cover and the external environment, the invasion of sand, dust and other tiny particles can be effectively blocked, thereby extending the service life of the bearing and improving the operating stability, especially in high dust or harsh working environments. The effect is more prominent; its working principle is that the sealing coating fills the tiny pores or uneven areas that may exist on the surface of the dust cover, and at the same time utilizes the flexibility and adhesion of the coating material to enhance the fit between the dust cover and the contact surface, and reduce the gap to prevent pollutants from entering; in addition, in the embodiment, a silicone sealing coating can be used to cope with high temperature environments, which not only improves heat resistance, but also maintains long-term elasticity, solving the problem of easy aging and cracking of traditional materials, or a fluororubber coating can be used to enhance chemical corrosion resistance, which is suitable for chemical or special gas environments, further broadening the application range of the dust cover, and the polyurethane coating is particularly suitable for high-speed rotation scenarios due to its excellent wear resistance and tear resistance, effectively reducing the risk of sealing failure caused by friction.

[0033] Further, as a preferred implementation of the present solution but not a limitation, a pair of separation grooves 12 are respectively provided on both sides of the universal base 1 , which are symmetrically arranged and extend inwardly along the axial direction thereof.

[0034] In this embodiment, the separation slot 12 enables the universal base to realize more flexible two-way assembly and two-way disassembly operations in the axial direction. The inwardly extending notch design allows for easy insertion or removal of connecting components, thereby achieving rapid installation and disassembly and improving equipment maintenance efficiency.

[0035] Further, as a preferred implementation manner of the present solution but not a limitation, the two pairs of separation grooves 12 on both sides of the universal base 1 are arranged in a staggered manner with respect to each other.

[0036] In this embodiment 2, Fig.15As shown, the flexibility and adjustability of the base are improved, so that the base can better adapt to installation requirements at different angles, while enhancing the stability and bearing capacity of the structure.

[0037] Furthermore, as a preferred implementation of the present solution but not a limitation, 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.

[0038] In this embodiment, this ratio ensures that the rolling bearing 2 has sufficient rotational freedom in the universal base 1, while maintaining the compactness and stability of the structure. The appropriate radius of the convex spherical surface 21 enables the rolling bearing 2 to smoothly rotate at multiple angles and dimensions on the concave spherical surface 11 of the universal base 1, meeting the requirements for flexibility and maneuverability in complex mechanical systems.

[0039] Furthermore, as a preferred implementation of the present solution but not a limitation, the ratio of the inner diameter, outer diameter and width of the rolling bearing 2 is 8:18:10.

[0040] In this embodiment, the inner diameter of the rolling bearing can be set to 8 mm, the outer diameter can be set to 18 mm, and the width can be set to 10 mm, ensuring that the bearing has good structural compactness and space utilization while maintaining sufficient load-bearing capacity. The relatively small inner diameter and large outer diameter enable the bearing to withstand a large radial load, while providing sufficient contact area to disperse stress, thereby improving the stability and durability of the bearing. The moderate width setting balances the rigidity and flexibility of the bearing, avoiding both the risk of deformation caused by too small a width and the unnecessary weight and space occupation caused by too large a width.

[0041] Furthermore, as a preferred implementation of the present solution but not a limitation, the width of the rolling bearing 2 is greater than the width of the universal base 1 .

[0042] In this embodiment, a larger contact area and support range can be provided when the rolling bearing 2 cooperates with the universal base 1, thereby enhancing the overall stability and load-bearing capacity of the bearing, especially when subjected to large radial or axial loads, effectively dispersing stress and reducing the risk of local deformation or damage.

[0043] Further, as a preferred implementation of the present solution but not a limitation, the radius length of the outer convex spherical surface 21 is 9 mm, and the width length of the rolling bearing 2 is 10 mm.

[0044] The working principle of this embodiment is as follows: The present application discloses a detachable universal bearing, which realizes the universal fit of the rolling bearing and the universal base by designing the rolling bearing and the universal base to be detachably connected, and setting an outer convex spherical surface on the outer side of the rolling bearing and an inner concave spherical surface on the inner side of the universal base. At the same time, by setting two symmetrical separation grooves on the universal base, the rolling bearing can be separated from the universal base at a fixed angle and direction. 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 angles is realized, which is suitable for a wider range of usage scenarios.

[0045] The above are implementation methods provided in combination with specific contents, and it is not intended that the specific implementation of this application is limited to these descriptions. Any method structure similar to the present application, or a number of technical deductions or replacements based on the concept of the present application, should be considered as the protection scope of this application.

Claims

1. A separable universal bearing, characterized in that: The invention comprises a universal base (1), and a rolling bearing (2) detachably connected to the universal base (1), wherein the outer side of the rolling bearing (2) is arranged as an outer convex spherical surface (21), and the inner side of the universal base (1) is arranged as an inner concave spherical surface (11) for universally matching the outer convex spherical surface (21), and the universal base (1) is provided with two separation grooves (12) which are symmetrically arranged and extend inwardly along the axial direction thereof, and the separation grooves (12) are used for the rolling bearing (2) to be separated from the universal base (1).

2. A separable universal bearing according to claim 1, characterized in that: The separation groove (12) has a height H, which gradually decreases from the outside to the inside.

3. The separable universal bearing according to claim 1, characterized in that: The separation groove (12) extends inwardly to the middle of the universal base (1).

4. The separable universal bearing according to claim 1, characterized in that: The maximum spacing distance between the two separation grooves (12) that are symmetrically arranged is S, the minimum spacing distance is B, and the maximum diameter of the rolling bearing (2) is L, wherein B≤L<S.

5. The separable universal bearing according to claim 1, characterized in that: The axial height of the rolling bearing (2) is matched 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 separated from the universal base (1) in the direction of the separation groove (12); 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 universal base (1) for universal rotation.

6. The separable universal bearing according to claim 1, characterized in that: 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) around the bearing outer ring at equal intervals, the inner side wall of the bearing outer ring (22) being provided with a first track groove (221), and the outer side wall of the bearing inner ring (23) being provided with a second track groove (231) cooperating 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 bearing inner ring (23) and the bearing outer ring (22).

8. The separable universal bearing according to claim 7, characterized in that: The outer surface of the dust cover (26) has a sealing coating.

9. The separable universal bearing according to claim 1, characterized in that: A pair of separation grooves (12) are respectively provided on both sides of the universal base (1), which are symmetrically arranged with each other and extend inwardly along the axis direction thereof.

10. The 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).

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