Deep groove ball bearing with sealing ring convenient to disassemble and assemble

Abstract

The deep groove ball bearing comprises a square base and an outer cylindrical shell integrally formed at the top end of the square base, a bearing assembly is installed in the outer cylindrical shell, an upper sealing ring is installed at the position of an opening in the top end of the outer cylindrical shell, a lower annular channel is fixed to the bottom end of the upper sealing ring, and the lower annular channel is fixed to the bottom end of the lower annular channel. An elastic anti-thrust structure is arranged in the lower annular channel, and a limiting groove connected with the movable end of the elastic anti-thrust structure is formed in the inner wall of the outer columnar shell. Through the design of the elastic thrust structure, the limiting groove, the right-angle sliding knob and other components, the quick assembly and disassembly functions are achieved, maintenance personnel can replace the sealing ring only through simple steps without complex tools, and operation convenience and efficiency are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of deep groove ball bearings, in particular to a deep groove ball bearing with a sealing ring that is convenient to disassemble and assemble. Background Art

[0002] Deep groove ball bearing is a common rolling bearing, which is used to support the shaft in the rotating mechanical device and reduce friction. Its structure includes inner ring, outer ring, steel ball and retainer. The inner ring and outer ring are two annular parts of the bearing respectively. The gap between them is slightly larger than the diameter of the steel ball, so that the steel ball can roll freely between the inner and outer rings. The steel ball, as a rolling element, is responsible for sharing the load borne by the bearing and reducing rolling friction. The function of the retainer is to distribute the steel balls around the inner ring of the bearing at equal distances, maintain their position and prevent them from colliding with each other.

[0003] For example, a deep groove ball bearing with convenient replacement of sealing rings disclosed in the authorization announcement number CN217462923U includes a deep groove ball bearing outer ring, an adjusting and positioning sealing device is arranged inside the deep groove ball bearing outer ring, the adjusting and positioning sealing device includes a sealing gear ring arranged on the inner wall of the deep groove ball bearing outer ring, a fixing ring is installed in the inner sleeve of the sealing gear ring, a deep groove ball bearing inner ring is installed in the inner wall of the fixing ring, a retaining spring is threadedly connected to the right end of the top of the deep groove ball bearing outer ring, a breaking block is fixedly connected to the bottom of the retaining spring, etc., and a better The effect of replacing the sealing ring is achieved, but in this technical solution, the retaining spring is located in the bearing, and the staff needs to use tools such as calipers to deform the retaining spring before replacing the sealing ring. The retaining spring may be affected by excessive or uneven external force during deformation, causing its deformation to exceed the design requirements or produce cracks, thereby affecting its normal service life and performance. Moreover, since the retaining spring is located inside the bearing, the staff needs to be careful when replacing the sealing ring to avoid damage to the bearing or other components. In addition, due to limited operating space, it will also affect the staff's field of vision and operating accuracy, resulting in errors or incompleteness during the replacement process. Utility Model Content

[0004] The utility model aims to provide a deep groove ball bearing with a sealing ring that is convenient for disassembly and assembly, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a deep groove ball bearing with a sealing ring that is easy to disassemble and assemble, comprising a square base and an outer cylindrical shell integrally formed at the top of the square base, a bearing assembly is installed inside the outer cylindrical shell, an upper sealing ring is installed at the top opening position of the outer cylindrical shell, and a lower ring is fixed to the bottom end of the upper sealing ring, an elastic thrust structure is arranged inside the lower ring, a limiting groove that is interconnected with the movable end of the elastic thrust structure is arranged on the inner wall of the outer cylindrical shell, hollow grooves are arranged on both sides of the top of the upper sealing ring, and a right-angle sliding button for driving the movable end of the elastic thrust structure to move toward the central axis direction of the outer cylindrical shell is slidably installed inside the hollow groove.

[0006] Preferably, the bearing assembly includes an outer ring fixed on the inner wall of the outer cylindrical shell, and a bottom ring fixed on the bottom of the square base, the top of the bottom ring is equipped with an inner ring through a rotary support structure, the outer peripheral surface of the inner ring is fixed with an outer retaining frame, and a plurality of rollers are installed in the cavity space between the outer retaining frame and the outer ring.

[0007] Preferably, the rotary support structure includes a support ring fixed to the bottom end of the inner ring, and an annular sink groove arranged at the top end of the bottom ring, and the support ring and the annular sink groove are rotatably connected.

[0008] Preferably, a dust ring is fixed to one side of the bottom end of the lower ring channel.

[0009] Preferably, internal threaded holes are provided at the corners of the top of the square base.

[0010] Preferably, the elastic thrust structure includes a cavity arranged on one side of the lower ring channel, and a rectangular seat fixed inside the cavity, a conical stop head is elastically mounted on the outer wall of the rectangular seat on one side close to the limit groove, and a pin is fixed at the top end of the conical stop head which is plugged into the limit groove.

[0011] Preferably, a sliding column is fixed to one end of the conical stopper away from the pin, one end of the sliding column extends to the inside of the rectangular seat, and a coil spring is sleeved on the outer circumference of the sliding column.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the deep groove ball bearing with convenient disassembly and assembly of the sealing ring is provided with an elastic thrust structure and an upper sealing ring and other structures that cooperate with each other, and there is no need to use structures such as retaining springs and calipers, so that the operation of replacing the sealing ring is simpler and faster, and the design of components such as the elastic thrust structure, the limit groove, and the right-angle slide button realizes the quick installation and quick removal functions. Maintenance personnel do not need complicated tools, and can complete the replacement of the sealing ring with simple steps, which greatly improves the convenience and efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0017] Figure 5 Schematic diagram of the three-dimensional structure of the upper sealing ring of the utility model

[0018] In the figure: 1. square base; 2. outer cylindrical shell; 201. limit groove; 3. outer ring; 4. bottom ring; 401. annular sink groove; 5. inner ring; 501. support ring; 6. outer retaining frame; 7. roller; 8. upper sealing ring; 801. hollow groove; 9. lower annular channel; 901. cavity; 10. elastic thrust structure; 1001. rectangular seat; 1002. sliding column; 1003. conical stop head; 1004. pin; 1005. spiral spring; 11. dust ring; 12. right-angle sliding button. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 The utility model provides an embodiment: a deep groove ball bearing with a seal ring that is easy to disassemble and assemble, comprising a square base 1 and an outer cylindrical shell 2 integrally formed at the top of the square base 1, wherein the corners of the top of the square base 1 are all provided with internal threaded holes;

[0021] A bearing assembly is installed inside the outer cylindrical shell 2, an upper sealing ring 8 is installed at the top opening position of the outer cylindrical shell 2, and a lower ring 9 is fixed at the bottom end of the upper sealing ring 8, an elastic thrust structure 10 is arranged inside the lower ring 9, and a limiting groove 201 which is interconnected with the movable end of the elastic thrust structure 10 is arranged on the inner wall of the outer cylindrical shell 2, hollow grooves 801 are arranged on both sides of the top of the upper sealing ring 8, and a right-angle sliding button 12 for driving the movable end of the elastic thrust structure 10 to move toward the central axis direction of the outer cylindrical shell 2 is slidably installed inside the hollow groove 801, the lower ring 9 divides the upper and lower parts of the sealing system inside the bearing, and forms a connection between the upper sealing ring 8 and the outer cylindrical shell 2, the elastic characteristics of the elastic thrust structure 10 enable the upper sealing ring 8 to be quickly disassembled and installed when replacement or maintenance is required, and the elastic thrust structure 10 can apply appropriate force to the outer cylindrical shell 2 during the replacement of the upper sealing ring 8 to ensure the stable connection of the outer cylindrical shell 2;

[0022] The bearing assembly includes an outer ring 3 fixed on the inner wall of the outer cylindrical shell 2, and a bottom ring 4 fixed on the bottom of the square base 1. The top of the bottom ring 4 is equipped with an inner ring 5 through a slewing support structure. An outer retainer 6 is fixed on the outer circumference of the inner ring 5. A plurality of rollers 7 are installed in the cavity space between the outer retainer 6 and the outer ring 3. The outer retainer 6 distributes the rollers 7 around the inner side of the rollers 7 at equal intervals to maintain their positions and prevent them from colliding with each other.

[0023] The rotary support structure includes a support ring 501 fixed at the bottom end of the inner ring 5, and an annular sink groove 401 arranged at the top end of the bottom ring 4. The support ring 501 and the annular sink groove 401 are rotatably connected. When the shaft drives the inner ring 5 to rotate, the support ring 501 and the annular sink groove 401 improve the rotation stability of the inner ring 5.

[0024] A dust ring 11 is fixed to one side of the bottom end of the lower ring 9. The dust ring 11 and the lower ring 9 form an effective sealing environment above the outer ring 3 and the roller 7, preventing dust, dirt and other foreign impurities from entering the bearing and preventing the roller 7 from being contaminated.

[0025] The elastic thrust structure 10 includes a cavity 901 arranged on one side of the lower ring 9, and a rectangular seat 1001 fixed inside the cavity 901. A conical stopper 1003 is elastically mounted on the outer wall of the rectangular seat 1001 near the limiting groove 201. A pin 1004 that is mutually plugged with the limiting groove 201 is fixed to the top of the conical stopper 1003. A sliding column 1002 is fixed to one end of the conical stopper 1003 away from the pin 1004. One end of the sliding column 1002 extends to the inside of the rectangular seat 1001. A spiral spring 1005 is sleeved on the outer circumference of the sliding column 1002.

[0026] The staff manually presses the right-angle slide button 12 to make the right-angle slide button 12 slide in the extension direction of the hollow groove 801, and the right-angle slide button 12 drives the conical stop head 1003 and the slide column 1002 to slide. At this time, the slide column 1002 and the rectangular seat 1001 slide relative to each other, and the coil spring 1005 is squeezed and deformed by the conical stop head 1003 until the pin 1004 withdraws to the outside of the limit groove 201. At this time, the pin 1004 is no longer connected to the lower annular channel 9 and the outer cylindrical shell 2, and the upper sealing ring 8 and the outer cylindrical shell 2 can be separated, thereby simplifying the process of replacing the sealing ring and reducing the difficulty of maintenance and operational risks.

[0027] When the embodiment of the present application is in use, first, the external shaft body is inserted into the inner ring 5 of the bearing. When the shaft body rotates, the roller 7 rolls between the outer retaining frame 6 and the outer ring 3, thereby reducing the rolling friction and making the rotation smoother. When the staff needs to disassemble or replace the upper sealing ring 8, the staff manually presses the two right-angle sliding buttons 12, so that the two right-angle sliding buttons 12 slide toward the vertical center axis of the bearing. Then, the right-angle sliding buttons 12 drive the elastic thrust structure 10 to deform until the movable end of the elastic thrust structure 10 withdraws to the outside of the limit groove 201, and the upper sealing ring 8 and the outer column are released. The connection between the outer cylindrical shells 2 is then lifted up, and the lower annular channel 9 and the upper sealing ring 8 are withdrawn to the outside of the outer cylindrical shell 2, and then the disassembly of the upper sealing ring 8 is completed. Finally, the new upper sealing ring 8 can be installed according to the reverse steps. In this process, there is no need to use structures such as retaining springs and calipers, which makes the operation of replacing the sealing ring easier and faster. The design of components such as the elastic thrust structure 10, the limit groove 201, and the right-angle slide button 12 realizes the quick installation and quick removal functions. The maintenance personnel do not need complicated tools, and only need simple steps to complete the replacement of the sealing ring, which greatly improves the convenience and efficiency of the operation.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A deep groove ball bearing with a sealing ring that is easy to disassemble and assemble, characterized in that: The invention comprises a square base (1) and an outer cylindrical shell (2) integrally formed at the top of the square base (1); a bearing assembly is installed inside the outer cylindrical shell (2); an upper sealing ring (8) is installed at the top opening of the outer cylindrical shell (2); a lower ring (9) is fixed at the bottom end of the upper sealing ring (8); an elastic thrust structure (10) is arranged inside the lower ring (9); a limiting groove (201) interconnected with the movable end of the elastic thrust structure (10) is arranged on the inner wall of the outer cylindrical shell (2); hollow grooves (801) are arranged on both sides of the top of the upper sealing ring (8); a right-angle sliding button (12) is slidably installed inside the hollow groove (801) for driving the movable end of the elastic thrust structure (10) to move toward the central axis of the outer cylindrical shell (2).

2. A deep groove ball bearing with a seal ring that is easy to disassemble and assemble according to claim 1, characterized in that: The bearing assembly comprises an outer ring (3) fixed on the inner wall of an outer cylindrical shell (2), and a bottom ring (4) fixed on the bottom of a square base (1); an inner ring (5) is installed on the top of the bottom ring (4) through a rotary support structure; an outer retainer (6) is fixed on the outer peripheral surface of the inner ring (5); and a plurality of rollers (7) are installed in the cavity space between the outer retainer (6) and the outer ring (3).

3. A deep groove ball bearing with a seal ring that is easy to disassemble and assemble according to claim 2, characterized in that: The rotary support structure comprises a support ring (501) fixed at the bottom end of the inner ring (5), and an annular sink groove (401) arranged at the top end of the bottom ring (4), and the support ring (501) and the annular sink groove (401) are rotatably connected.

4. A deep groove ball bearing with a seal ring that is easy to disassemble and assemble according to claim 1, characterized in that: A dust ring (11) is fixed on one side of the bottom end of the lower ring channel (9).

5. A deep groove ball bearing with a seal ring that is easy to disassemble and assemble according to claim 1, characterized in that: Internal thread holes are provided at the corners of the top of the square base (1).

6. A deep groove ball bearing with a seal ring that is easy to disassemble and assemble according to claim 1, characterized in that: The elastic thrust structure (10) comprises a cavity (901) arranged on one side inside the lower annular channel (9), and a rectangular seat (1001) fixed inside the cavity (901); a conical stopper (1003) is elastically mounted on an outer wall of the rectangular seat (1001) on one side close to the limiting groove (201); a pin (1004) which is plugged into the limiting groove (201) is fixed at the top end of the conical stopper (1003).

7. A deep groove ball bearing with a seal ring that is easy to disassemble and assemble according to claim 6, characterized in that: A sliding column (1002) is fixed to one end of the conical stopper (1003) away from the pin (1004), one end of the sliding column (1002) extends to the inside of the rectangular seat (1001), and a coil spring (1005) is sleeved on the outer peripheral surface of the sliding column (1002).

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