Sealing type subdivision self-aligning roller bearing

Abstract

The utility model relates to the technical field of roller bearings, and discloses a sealing type subdivision self-aligning roller bearing which comprises a subdivision outer shaft seat, an inner shaft seat, a retainer, a roller, a packaging disc, a sealing end, a sealing screw groove, a connecting thread and a first sealing pressure pad. The retainer can be assembled and sleeved outside the inner shaft seat, the two groups of split outer shaft seats can be assembled and sleeved outside the roller, and when the end surfaces of the two groups of split outer shaft seats are assembled, the blocking pressing piece can be mutually pressed and sealed in the blocking groove through the second sealing pressing pad, so that the sealing effect of the end surfaces between the two groups of split outer shaft seats is improved; at the moment, sealing ends at one ends of two groups of packaging discs can be rotationally sealed with threads in the sealing screw grooves, and first sealing pressure pads at one ends of the packaging discs can be in extrusion fit with the end surface of the split outer shaft seat, so that the sealing performance and the stability of a gap between the split outer shaft seat and the inner shaft seat are improved, and the sealing effect of the roller bearing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of roller bearings, in particular to a sealed split spherical roller bearing. Background Art

[0002] For a commonly used standard designed spherical roller bearing, the outer ring is an integral outer ring. The bearing mainly bears radial loads and can also bear axial loads in any direction. It has a high radial load capacity, is suitable for working under heavy loads or vibration loads, has good self-aligning performance, and can compensate for coaxiality errors. When assembling existing split roller bearings, the upper and lower groups of split axle seats are generally fixed by fixing bolt shafts, and the end faces of the axle seats are directly butted. The inner and outer axle seat gaps are sealed and fitted by a sealing ring. As a result, as the bearing operates for a long time, the sealing ring is prone to falling off, and the bearing is prone to liquid leakage, and the sealing effect is limited. Therefore, we propose a sealed split spherical roller bearing. Summary of the Utility Model

[0003] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides a sealed split spherical roller bearing.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme. A sealed split spherical roller bearing includes a split outer axle seat, an inner axle seat, a cage, and rollers. A packaging disc is arranged on the end face of the split outer axle seat. One end of the packaging disc is provided with a sealing end. The sealing end is of an annular structure. Sealing screw grooves are opened at both ends of the split outer axle seat. Connecting threads are opened on the periphery of the sealing end. The packaging disc is provided with a first sealing gasket that wraps the inner and outer sides of the sealing end corresponding to the end face of the split outer axle seat.

[0005] Preferably, one end of the packaging disc is threadedly connected and fitted with the sealing screw groove inside one end of the split outer axle seat through the connecting thread on the periphery of the sealing end.

[0006] Furthermore, the first sealing gasket has a deformation characteristic. When the packaging disc is butt-mounted with the sealing screw groove inside the split outer axle seat through the sealing end, the first sealing gasket on one side of the packaging disc and the split outer axle seat are in a mutually fitting and pressing state.

[0007] Preferably, a barrier groove is opened at the top of one group of split outer axle seats, and a barrier pressing member is installed at the bottom of the other group of split outer axle seats. A second sealing gasket is sleeved outside the barrier pressing member. A screw hole penetrating through the inside of the other group of split outer axle seats is opened on the periphery of one group of split outer axle seats. A screw shaft for fixing the two groups of split outer axle seats is threadedly installed inside the screw hole.

[0008] Furthermore, the second sealing gasket itself has a deformation characteristic. When a set of the split outer shaft seats are installed and docked with the blocking grooves inside the other set of split outer shaft seats through the blocking pressing member, the second sealing gasket outside the blocking pressing member is in an interlocking state through the blocking groove and the blocking pressing member.

[0009] Preferably, a connecting seat is installed at one end of the encapsulation disc. A spherical groove is formed inside the connecting seat. A limiting clamping ball is movably clamped inside the spherical groove. Docking grooves are formed at both ends of the inner shaft seat.

[0010] Furthermore, when the encapsulation disc is installed and docked with the sealing screw groove inside the split outer shaft seat through the sealing end, the limiting clamping ball inside the connecting seat of the encapsulation disc is in a limiting docking state with the docking groove.

[0011] Beneficial effects

[0012] The utility model provides a sealed split spherical roller bearing, which has the following beneficial effects:

[0013] 1. For the sealed split spherical roller bearing, in this article, after the rollers are installed in the cage, the cage can be assembled and sleeved outside the inner shaft seat. The two sets of split outer shaft seats can be assembled and sleeved outside the rollers and fixed by screws. When the two sets of split outer shaft seats are assembled at the end faces, the blocking pressing member at the bottom of one set of split outer shaft seats can be mutually pressed and sealed with the blocking groove at the end face of the other set of split outer shaft seats through the second sealing gasket, increasing the end face sealing effect between the two sets of split outer shaft seats. At this time, the sealing ends at one end of the two sets of encapsulation discs can be screwed and sealed with the sealing screw grooves at both ends of the split outer shaft seats, and the first sealing gasket at one end of the encapsulation disc can be pressed and fitted with the end face of the split outer shaft seat, improving the gap sealing performance and stability between the split outer shaft seat and the inner shaft seat, so as to improve the sealing effect of the roller bearing.

[0014] 2. For the sealed split spherical roller bearing, a spherical groove is formed inside the connecting seat at one end of the encapsulation disc, and a limiting clamping ball is movably clamped inside the spherical groove. When the encapsulation disc is threadedly connected and docked with the end face of the split outer shaft seat, the limiting clamping ball on one side of the encapsulation disc can be in limiting docking with the docking groove at one end of the inner shaft seat. In this way, the limiting clamping ball can form a blocking support for both ends of the inner shaft seat, so as to improve the running stability of the inner shaft seat. Brief description of the drawings

[0015] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0016] The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of this utility model. Therefore, they do not have any substantial technical significance. Any modification of the structure, change in the ratio relationship, or adjustment of the size, without affecting the effects that this utility model can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in this utility model.

[0017] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 is this utility model Figure 1 an enlarged view of A therein;

[0019] Figure 3 is an assembly schematic diagram of the split outer shaft seat of this utility model;

[0020] Figure 4 is this utility model Figure 3 an enlarged view of B therein;

[0021] Figure 5 is a partial schematic diagram of the barrier pressing part of this utility model;

[0022] Figure 6 is this utility model Figure 1 an enlarged view of C therein.

[0023] Legend Explanation:

[0024] 1. Split outer shaft seat; 2. Inner shaft seat; 3. Cage; 4. Roller; 5. Encapsulation disc; 6. Sealed end; 7. Sealed screw groove; 8. Connecting thread; 9. First sealing gasket; 10. Barrier groove; 11. Barrier pressing part; 12. Second sealing gasket; 13. Screw shaft; 14. Screw hole; 15. Connecting seat; 16. Spherical groove; 17. Limit clamping ball; 18. Docking groove. Specific Embodiment

[0025] Next, the technical solutions in the embodiments of this utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope of protection of this utility model.

[0026] Embodiment: A sealed split self-aligning roller bearing, as Figures 1 - 6As shown in the figure, it includes a split outer shaft seat 1, an inner shaft seat 2, a cage 3, and rollers 4. An encapsulation disc 5 is provided at the end face of the split outer shaft seat 1. One end of the encapsulation disc 5 is provided with a sealing end 6. The sealing end 6 is of an annular structure. Sealing screw grooves 7 are opened at both ends of the split outer shaft seat 1. Connecting threads 8 are opened on the periphery of the sealing end 6. The encapsulation disc 5 is provided with a first sealing gasket 9 that wraps around the inner and outer sides of the sealing end 6 corresponding to the end face of the split outer shaft seat 1. A barrier groove 10 is opened at the top of one group of split outer shaft seats 1, and a barrier pressing member 11 is installed at the bottom of the other group of split outer shaft seats 1. A second sealing gasket 12 is sleeved outside the barrier pressing member 11. A screw hole 14 that penetrates through the inside of the other group of split outer shaft seats 1 is opened on the periphery of one group of split outer shaft seats 1. A screw shaft 13 for fixing the two groups of split outer shaft seats 1 is installed with internal threads in the screw hole 14. One end of the encapsulation disc 5 is provided with a connecting seat 15. A spherical groove 16 is opened inside the connecting seat 15. A limiting ball 17 is movably clamped inside the spherical groove 16. Docking grooves 18 are opened at both ends of the inner shaft seat 2.

[0027] Further, one end of the encapsulation disc 5 is threadedly connected and matched with the sealing screw groove 7 inside one end of the split outer shaft seat 1 through the connecting threads 8 on the periphery of the sealing end 6.

[0028] Further, the first sealing gasket 9 itself has a deformation characteristic. When the encapsulation disc 5 is docked and installed with the sealing screw groove 7 inside the split outer shaft seat 1 through the sealing end 6, the first sealing gasket 9 on one side of the encapsulation disc 5 is in a state of mutual fitting and extrusion with the split outer shaft seat 1.

[0029] Further, the second sealing gasket 12 itself has a deformation characteristic. When one group of split outer shaft seats 1 is installed and docked with the barrier groove 10 inside the other group of split outer shaft seats 1 through the barrier pressing member 11, the second sealing gasket 12 outside the barrier pressing member 11 is in a state of mutual engagement through the barrier groove 10 and the barrier pressing member 11.

[0030] Further, when the encapsulation disc 5 is installed and docked with the sealing screw groove 7 inside the split outer shaft seat 1 through the sealing end 6, the encapsulation disc 5 is in a limiting docking state with the docking groove 18 through the limiting ball 17 inside the connecting seat 15.

[0031] The working principle of the present utility model:

[0032] After the roller 4 is installed in the cage 3, the cage 3 can be assembled and sleeved outside the inner shaft seat 2. The two split outer shaft seats 1 can be assembled and sleeved outside the roller 4 and fixed by a screw shaft 13. When the two split outer shaft seats 1 are assembled at the end face, the barrier pressing part 11 at the bottom of one of the split outer shaft seats 1 can be pressed and sealed with the barrier groove 10 at the end face of the other split outer shaft seat 1 through the second sealing gasket 12, increasing the end face sealing effect between the two split outer shaft seats 1. At this time, the sealing end 6 at one end of the two encapsulation discs 5 can be screwed and rotated for sealing with the sealing screw grooves 7 at both ends of the split outer shaft seat 1, and the first sealing gasket 9 at one end of the encapsulation disc 5 can be pressed and fitted with the end face of the split outer shaft seat 1, improving the gap sealing performance and stability between the split outer shaft seat 1 and the inner shaft seat 2, thereby improving the sealing effect of the roller bearing. One end of the encapsulation disc 5 is provided with a spherical groove 16 inside the connecting seat 15, and a limiting ball 17 is movably clamped inside the spherical groove 16. When the encapsulation disc 5 is threadedly connected and butted with the end face of the split outer shaft seat 1, the limiting ball 17 on one side of the encapsulation disc 5 can be limited and butted with the butting groove 18 at one end of the inner shaft seat 2. In this way, the limiting ball 17 can form a blocking support for both ends of the inner shaft seat 2, thereby improving the running stability of the inner shaft seat 2.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed split spherical roller bearing, comprising a split outer shaft seat (1), an inner shaft seat (2), a cage (3), and rollers (4), characterized in that: The end face of the split outer shaft seat (1) is provided with a sealing disk (5), one end of which is provided with a sealing end (6), the sealing end (6) being an annular structure, both ends of the split outer shaft seat (1) are provided with sealing screw grooves (7), the outer periphery of the sealing end (6) is provided with a connecting thread (8), and the end face of the sealing disk (5) corresponding to the split outer shaft seat (1) is provided with a first sealing pressure pad (9) which covers the inner and outer sides of the sealing end (6).

2. A sealed split spherical roller bearing according to claim 1, characterized in that: One end of the sealing disk (5) is threadedly connected to and matched with a sealing screw groove (7) inside one end of the split outer shaft seat (1) through a connecting thread (8) on the periphery of the sealing end (6).

3. A sealed split spherical roller bearing according to claim 2, characterized in that: The first sealing pressure pad (9) itself has a deformation property. When the packaging disc (5) is butt-jointed and installed in the sealing screw groove (7) inside the split outer shaft seat (1) through the sealing end (6), the first sealing pressure pad (9) on one side of the packaging disc (5) and the split outer shaft seat (1) are in a mutually fitting and extruded state.

4. A sealed split spherical roller bearing according to claim 1, characterized in that: A blocking groove (10) is provided on the top of one group of the split external shaft seats (1), and a blocking pressure piece (11) is installed on the bottom of the other group of the split external shaft seats (1), and a second sealing pressure pad (12) is provided on the outside of the blocking pressure piece (11). A screw hole (14) that passes through the inside of the other group of split external shaft seats (1) is provided on the periphery of one group of the split external shaft seats (1), and the internal thread of the screw hole (14) is installed with a screw shaft (13) for fixing the two groups of split external shaft seats (1).

5. A sealed split spherical roller bearing according to claim 4, characterized in that: The second sealing pressure pad (12) itself has a deformation characteristic. When one group of the split outer shaft seats (1) is installed and docked with the blocking groove (10) inside the other group of the split outer shaft seats (1) through the blocking pressure piece (11), the second sealing pressure pad (12) outside the blocking pressure piece (11) is in a mutually interlocking state through the blocking groove (10) and the blocking pressure piece (11).

6. A sealed split spherical roller bearing according to claim 3, characterized in that: A connecting seat (15) is installed at one end of the packaging disc (5), a spherical groove (16) is provided inside the connecting seat (15), a limit locking ball (17) is movably engaged inside the spherical groove (16), and docking grooves (18) are provided at both ends of the inner shaft seat (2).

7. A sealed split spherical roller bearing according to claim 6, characterized in that: When the sealing disc (5) is installed and docked with the sealing screw groove (7) inside the split outer shaft seat (1) through the sealing end (6), the sealing disc (5) is in a limited docking state with the docking groove (18) through the limited clamping ball (17) inside the connecting seat (15).

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