Slewing support bearing with roller path capable of being quickly detached

Abstract

The utility model relates to the technical field of slewing bearings, in particular to a slewing bearing with a quickly detachable raceway, which comprises an outer ring component, an inner ring component, a plurality of raceway backing rings, two connecting seats and two limiting grooves. A second outer ring is arranged on the top face of the first outer ring, the inner ring assembly is arranged in the outer ring assembly and comprises a first inner ring, and a second inner ring is arranged on the top face of the first inner ring. According to the utility model, the plurality of raceway backing rings are arranged between the outer ring assembly and the inner ring assembly, when the raceway backing rings are worn, the outer ring I and the outer ring II can be detached, or the inner ring I and the inner ring II can be detached, at the moment, the raceway backing rings can be taken out from the outer ring assembly and the inner ring assembly, and the raceway backing rings can be replaced; the whole slewing bearing does not need to be replaced, so that the maintenance and replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of slewing bearings, in particular to a slewing bearing with a raceway capable of being quickly disassembled. Background Art

[0002] A slewing bearing is a large bearing capable of withstanding combined loads. It is composed of inner and outer rings, rolling elements, and the like. It can simultaneously withstand large axial and radial loads and is widely used in engineering machinery such as earthmoving machinery and excavators. Existing slewing bearings are subject to heavy loads and complex operating conditions, and as a result, their raceways are susceptible to wear after a period of use. The raceways of the outer and inner rings of the slewing bearings are integrally formed, requiring the entire slewing bearing to be replaced when the raceways are worn. This results in relatively high maintenance and replacement costs, which is detrimental to cost savings. Utility Model Content

[0003] The purpose of the utility model is to provide a slewing bearing with a raceway that can be quickly disassembled, so as to solve the problems raised in the above background technology.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A slewing bearing with a quickly detachable raceway comprises an outer ring assembly, an inner ring assembly, a plurality of raceway washers, two connecting seats, and two limiting grooves;

[0006] The outer ring assembly can play the role of supporting the main body, and the outer ring assembly includes an outer ring 1, and the top surface of the outer ring 1 is provided with an outer ring 2;

[0007] The inner ring assembly is arranged inside the outer ring assembly, and the inner ring assembly includes an inner ring 1, and an inner ring 2 is arranged on the top surface of the inner ring 1;

[0008] A plurality of raceway washers are arranged between the outer ring assembly and the inner ring assembly;

[0009] The two connecting seats are fixedly connected to the top surfaces of the outer ring 1 and the inner ring 1 respectively, and the outer ring surface and the inner ring surface of the connecting seat are fixedly connected to a plurality of spiral rods 1;

[0010] The two limiting grooves are respectively arranged on the bottom surfaces of the outer ring 2 and the inner ring 2, and the two inner side surfaces of the limiting grooves are fixedly connected with a plurality of screw rods 2 abutting against adjacent screw rods 1.

[0011] Furthermore, a bottom surface of the outer ring is provided with a plurality of thread grooves, and a bottom surface of the inner ring is provided with a plurality of fixing holes.

[0012] Furthermore, the cross sections of the connecting seat and the limiting groove are both trapezoidal.

[0013] Furthermore, a plurality of grooves are provided on the inner side surfaces of the outer ring 1 and the outer ring 2, and on the side surfaces of the inner ring 1 and the inner ring 2 corresponding to the raceway gaskets.

[0014] Furthermore, a plurality of latching holes are provided on the outer ring 1, the inner ring 1, the outer ring 2, the inner ring 2 and the bottom surface of the connecting seat.

[0015] Preferably, the two side surfaces of the outer ring and the two top surfaces of the inner ring are both provided with screw-on grooves.

[0016] Furthermore, the outer ring assembly is equipped with a screw rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. Several raceway gaskets are arranged between the outer ring assembly and the inner ring assembly, and rolling bodies are arranged inside the raceway gaskets. When in use, the raceway is composed of several raceway gaskets. When the raceway gaskets are worn, the outer ring two can be rotated relative to the outer ring one to separate the spiral rod one from the spiral rod two, or the inner ring two can be rotated relative to the inner ring one to separate the connecting seat on the inner ring one from the inner ring two. In this way, the outer ring one and the outer ring two can be separated, or the inner ring one and the inner ring two can be separated. At this time, the raceway gaskets can be taken out from the outer ring assembly and the inner ring assembly, and the raceway gaskets can be replaced. When only the outer ring assembly or the inner ring assembly is damaged, only the damaged assembly can be replaced, and there is no need to replace the entire slewing bearing, which is beneficial to reducing maintenance and replacement costs.

[0019] 2. By making the screw rod 1 contact the adjacent screw rod 2, rotating the connecting seat a quarter of a turn can disengage the screw rod 1 from the corresponding screw rod 2, thereby directly disengaging the connecting seat from the corresponding limit groove, which is conducive to the rapid separation between the outer ring 1 and the outer ring 2, and the inner ring 1 and the inner ring 2, and facilitates the rapid removal of the raceway gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a slewing bearing with a quickly detachable raceway in the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the outer ring assembly in the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the outer ring in the present utility model;

[0023] Figure 4 This is a schematic diagram of the connecting seat structure in the utility model;

[0024] Figure 5 It is a schematic diagram of the outer ring-bottom structure in the utility model.

[0025] In the figure: 1. Outer ring assembly; 11. Outer ring 1; 12. Outer ring 2; 13. Threaded groove; 2. Inner ring assembly; 21. Inner ring 1; 22. Inner ring 2; 23. Fixing hole; 3. Raceway gasket; 4. Connecting seat; 41. Screw rod 1; 5. Limiting groove; 51. Screw rod 2; 6. Groove; 7. Positioning hole; 8. Screw groove; 9. Screw rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-4 In an embodiment of the present invention, a slewing bearing with a quickly detachable raceway includes an outer ring assembly 1, an inner ring assembly 2, a plurality of raceway washers 3, two connecting seats 4, and two limiting grooves 5;

[0028] The outer ring assembly 1 can play the role of supporting the main body. The outer ring assembly 1 includes an outer ring 11, and an outer ring 2 12 is provided on the top surface of the outer ring 11. The inner ring assembly 2 is arranged inside the outer ring assembly 1. The inner ring assembly 2 includes an inner ring 21, and an inner ring 2 22 is provided on the top surface of the inner ring 21. A plurality of raceway gaskets 3 are arranged between the outer ring assembly 1 and the inner ring assembly 2. Two raceway gaskets 3 are provided in each of the outer ring 11, the outer ring 2 12, the inner ring 1 21, and the inner ring 2 22. A raceway is formed by the plurality of raceway gaskets 3, and rolling elements are arranged inside the plurality of raceway gaskets 3.

[0029] The two connecting seats 4 are respectively fixedly connected to the top surfaces of the outer ring 11 and the inner ring 1, 21. The outer ring surface and the inner ring surface of the connecting seat 4 are fixedly connected with a number of spiral rods 1 41. The two limiting grooves 5 are respectively opened on the bottom surfaces of the outer ring 2 12 and the inner ring 2 22. The two inner side surfaces of the limiting grooves 5 are fixedly connected with a number of spiral rods 2 51 that abut against adjacent spiral rods 1 41. The spiral rods 2 51 can abut against the adjacent spiral rods 1 41, so that the connecting seat 4 is restricted in the limiting groove 5 through the spiral rods 2 51, connecting the outer ring 11 with the outer ring 2 12, and the inner ring 1 21 with the inner ring 2 22. The cross-sections of the connecting seat 4 and the limiting grooves 5 are both trapezoidal.

[0030] Specifically, when the raceway washer 3 is worn, the outer ring 2 12 or the inner ring 2 22 can be rotated to separate the screw rod 1 41 from the screw rod 2 51, and the connecting seat 4 from the limiting groove 5, so that the outer ring 11 and the outer ring 2 12 can be separated, or the inner ring 1 21 and the inner ring 2 22 can be separated. At this time, the raceway washer 3 can be taken out from the outer ring assembly 1 and the inner ring assembly 2, and the raceway washer 3 can be replaced without replacing the entire slewing bearing, which is beneficial to reducing maintenance and replacement costs. In addition, when only the outer ring assembly 1 or the inner ring assembly 2 is damaged, only the damaged assembly can be replaced, which is beneficial to reducing maintenance costs. Moreover, when replacing, there is no need to take out the rolling elements, which is beneficial to rapid maintenance of the slewing bearing.

[0031] The screw rod 1 41 is in contact with the adjacent screw rod 2 51, and the cross-sections of the connecting seat 4 and the limiting groove 5 are both trapezoidal. After the connecting seat 4 is rotated a quarter of a turn to disengage the screw rod 1 41 from the adjacent screw rod 2 51, the top screw rod 1 41 can be directly staggered with the bottom screw rod 2 51. At this time, the connecting seat 4 can be disengaged from the corresponding limiting groove 5, and the connecting seat 4 and the limiting groove 5 are connected to each other through multiple groups of screw rods 1 41 and screw rods 2 51, which is beneficial to the stable connection between the outer ring 11 and the outer ring 2 12, and the inner ring 1 21 and the inner ring 2 22. When disassembling, only a quarter of a turn is required, which is beneficial to the rapid disassembly between the outer ring 11 and the outer ring 2 12, and the inner ring 1 21 and the inner ring 2 22, and facilitates the rapid removal of the raceway gasket 3.

[0032] During installation, first, the outer ring 11 and the inner ring 1 21 can be sleeved together, and then the rolling body can be placed inside the raceway gasket 3. Then, the outer ring 2 12 can be connected to the outer ring 11, and the inner ring 2 22 can be connected to the inner ring 1 21, and the rolling body can be covered by the outer ring 2 12 and the inner ring 2 22.

[0033] Example 1

[0034] like Figure 2-4 As shown, in this embodiment, a plurality of latching holes 7 are formed on the bottom surfaces of the outer ring 11 , the inner ring 1 21 , the outer ring 2 12 , the inner ring 2 22 and the connecting seat 4 .

[0035] During specific implementation, the outer ring 11, the outer ring 2, 12 and the positioning holes 7 on the adjacent connecting seats 4 are aligned with each other, while the inner ring 1, the inner ring 2, 22 and the positioning holes 7 on the adjacent connecting seats 4 are aligned with each other. In this way, after the outer ring 11 and the outer ring 2, 12 are screwed together through the connecting seat 4, and the inner ring 1, 21 and the inner ring 2, 22 are screwed together, a pin can be passed through the interior of the positioning hole 7 to limit the mutual rotation of the outer ring 11 and the outer ring 2, 12, and to limit the mutual rotation of the inner ring 1, 21 and the inner ring 2, 22, to avoid the outer ring 11 and the outer ring 2, 12, and the inner ring 1, 21 and the inner ring 2, 22 from separating. It is also possible to optionally provide a thread on the inner wall of the positioning hole 7, and screw the screw into the interior of the positioning hole 7 to position the outer ring 11 and the outer ring 2, 12, and the inner ring 1, 21 and the inner ring 2, 22.

[0036] like Figure 5 As shown, in this embodiment, the bottom surface of the outer ring 11 begins to have a plurality of thread grooves 13, and the bottom surface of the inner ring 21 is provided with a plurality of fixing holes 23;

[0037] A plurality of grooves 6 are formed on the inner side surfaces of the outer ring 11 and the outer ring 2 12 and the side surfaces of the inner ring 1 21 and the inner ring 2 22 corresponding to the raceway gasket 3 . The grooves 6 correspond to the edges of the raceway gasket 3 .

[0038] During specific implementation, a gap can be formed on the edge of the raceway gasket 3 through the groove 6, which makes it easy to push the raceway gasket 3 out of the outer ring 11, the outer ring 2 12, the inner ring 1 21 and the inner ring 2 22. The outer ring 11 can be connected to the corresponding device by screwing into the threaded groove 13, and the inner ring 1 21 can be connected to the corresponding device by passing the bolt through the fixing hole 23.

[0039] A fixing ring can be optionally provided on the outer ring surface of the outer ring 11, with a plurality of circular holes provided on the fixing ring. In this case, the outer ring 11 can be connected to the device by bolts.

[0040] Example 2

[0041] Based on the first embodiment, Figure 1 As shown, in this embodiment, both the side surface of the second outer ring 12 and the top surface of the second inner ring 22 are provided with screwing grooves 8, and the outer ring assembly 1 is equipped with a screwing rod 9.

[0042] During specific implementation, the end of the screwing rod 9 can be screwed into the inside of the screwing groove 8. At this time, the outer ring 2 12 or the inner ring 2 22 can be pulled to rotate by the screwing rod 9, so that the outer ring 2 12 rotates relative to the outer ring 1 11, or the inner ring 2 22 rotates relative to the inner ring 1 21, and the outer ring 2 12 or the inner ring 2 22 can be removed.

[0043] It will be apparent 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 characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0044] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A slewing bearing with a quickly disassembled raceway, characterized in that: include: The outer ring assembly (1) can play a role in supporting the main body. The outer ring assembly (1) includes an outer ring 1 (11). The top surface of the outer ring 1 (11) is provided with an outer ring 2 (12); An inner ring assembly (2) is arranged inside the outer ring assembly (1), the inner ring assembly (2) comprises an inner ring 1 (21), and an inner ring 2 (22) is arranged on the top surface of the inner ring 1 (21); A plurality of raceway gaskets (3) are arranged between the outer ring assembly (1) and the inner ring assembly (2); Two connecting seats (4) are fixedly connected to the top surfaces of the outer ring (11) and the inner ring (21), respectively, and the outer ring surface and the inner ring surface of the connecting seat (4) are both fixedly connected to a plurality of spiral rods (41); Two limiting grooves (5) are respectively provided on the bottom surfaces of the outer ring 2 (12) and the inner ring 2 (22), and the two inner side surfaces of the limiting grooves (5) are fixedly connected with a plurality of screw rods 2 (51) abutting against adjacent screw rods 1 (41).

2. The slewing bearing with a quickly detachable raceway according to claim 1, characterized in that: The bottom surface of the outer ring (11) is provided with a plurality of thread grooves (13), and the bottom surface of the inner ring (21) is provided with a plurality of fixing holes (23).

3. The slewing bearing with a quickly detachable raceway according to claim 1, characterized in that: The cross sections of the connecting seat (4) and the limiting groove (5) are both trapezoidal.

4. The slewing bearing with a quickly detachable raceway according to claim 1, characterized in that: A plurality of grooves (6) are provided on the inner side surfaces of the outer ring 1 (11) and the outer ring 2 (12), and on the side surfaces of the inner ring 1 (21) and the inner ring 2 (22) corresponding to the raceway gaskets (3).

5. The slewing bearing with a quickly detachable raceway according to claim 1, characterized in that: The outer ring 1 (11), the inner ring 1 (21), the outer ring 2 (12), the inner ring 2 (22) and the bottom surface of the connecting seat (4) are all provided with a plurality of positioning holes (7).

6. The slewing bearing with a quickly detachable raceway according to claim 1, characterized in that: The side surface of the second outer ring (12) and the top surface of the second inner ring (22) are both provided with screw-on grooves (8).

7. The slewing bearing with a quickly detachable raceway according to claim 6, characterized in that: The outer ring assembly (1) is equipped with a screw rod (9).

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