Combined slewing bearing

Abstract

The utility model discloses a combined slewing bearing, which belongs to the technical field of slewing bearings, and comprises an inner ring body and an outer ring body, the outer ring edge of the outer ring body is a meshing tooth surface, the outer surface of the outer ring body is meshed with a worm, the top and the bottom of the inner ring body are provided with cleaning and protecting structures, and the cleaning and protecting structures are arranged on the inner ring body. The top of the outer ring body is provided with an auxiliary protection structure, the cleaning protection structure comprises a cleaning ring frame, and the inner wall of the cleaning ring frame is fixedly connected with first bristles. The connecting position of the bearing inner ring and the shaft rod is protected, dust permeation is avoided, when the bearing inner ring and the shaft rod are detached, first bristles can clean dust outwards, adhesion is avoided, meanwhile, under the action of a protection plate, the first bristles can be matched with a sliding cylinder to slide on the outer surface of a fixing rod, and then the first bristles can be matched with a buffer spring for buffering.

Description

Technical Field

[0001] The utility model belongs to the technical field of slewing bearings, in particular to a combined slewing bearing. Background Art

[0002] Slewing bearings are widely used. Construction machinery is the first and most widely used application of slewing bearings. In addition to various construction machinery, the application scope of slewing bearings has been gradually expanding. Equipment platforms such as port equipment, metallurgical equipment, and drilling platforms have begun to use slewing bearings on a large scale to replace original bearings.

[0003] The slewing bearing in the prior art mainly includes a bearing outer ring, a bearing inner ring, and balls between the bearing outer ring and the bearing inner ring. When in use, the bearing outer ring and the bearing inner ring are installed, and the balls are installed with the bearing outer ring and the bearing inner ring at the same time, and then it can be used normally.

[0004] However, in actual use, dust easily accumulates at the connection between the inner ring of the bearing and the shaft and other components, which can easily cause increased wear during rotation and affect the service life of the bearing. At the same time, the connection is easily deformed by impact, which hinders subsequent disassembly and maintenance. Utility Model Content

[0005] (1) Technical problems solved

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a combined slewing bearing, which solves the problem that in actual use, dust is easily accumulated at the connection between the inner ring of the bearing and the shaft and other components, which in turn easily causes increased wear during rotation, affecting the service life of the bearing, and at the same time, the connection is easily deformed by impact, which in turn hinders subsequent disassembly and maintenance.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a combined slewing bearing, comprising an inner ring body and an outer ring body, the outer ring edge of the outer ring body being a meshing surface, the outer surface of the outer ring body being meshingly connected with a worm, the top and bottom of the inner ring body being provided with a cleaning protection structure, the top of the outer ring body being provided with an auxiliary protection structure, the cleaning protection structure comprising a cleaning ring frame, the inner wall of the cleaning ring frame being fixedly connected with a first brush bristle, the auxiliary protection structure comprising an annular filter plate, the outer surface bottom of the annular filter plate being fixedly connected with a protective circular frame.

[0009] As a further solution of the present invention: the top and bottom of the outer surface of the inner ring body are fixedly connected to the external threaded circular frame, the outer surface of the external threaded circular frame is threadedly connected to the internal threaded circular frame, and the top of the outer surface of the internal threaded circular frame is fixedly connected to the bottom of the outer surface of the cleaning ring frame.

[0010] As a further solution of the present invention: a fixing rod is fixedly connected to the outer surface of the cleaning ring frame, a sliding cylinder is slidably connected to one end of the outer surface of the fixing rod, and a protective plate is fixedly connected to one side of the outer surface of the sliding cylinder.

[0011] As a further solution of the present invention: a buffer spring is sleeved on the outer surface of the fixing rod, and two ends of the buffer spring are fixedly connected to the sliding cylinder and the cleaning ring frame respectively.

[0012] As a further solution of the present invention: a connecting ring block is fixedly connected to the inner surface of the annular filter plate, and the bottom of the outer surface of the connecting ring block is fixedly connected to the top of the outer ring body.

[0013] As a further solution of the present invention: an auxiliary ring plate is fixedly connected to the outer ring surface of the annular filter plate, an annular sliding frame is fixedly connected to the top of the auxiliary ring plate, and an auxiliary sliding rod is slidably connected to the inner wall of the annular sliding frame.

[0014] As a further solution of the present invention: an L-shaped plate is fixedly connected to the top of the outer surface of the auxiliary sliding rod, a second bristle is fixedly connected to the bottom of the outer surface of the L-shaped plate, a locking rod is inserted into the inner wall of one side of the L-shaped plate, and a locking hole is opened on one side of the auxiliary ring plate.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The combined slewing bearing is provided with a cleaning protection structure. Under the action of the cleaning ring frame, the bristles can protect the connection between the inner ring of the bearing and the shaft to prevent dust from penetrating. When the inner ring of the bearing and the shaft are disassembled, the first bristles can clean the dust outward to prevent adhesion. At the same time, under the action of the protective plate, the sliding cylinder can slide on the outer surface of the fixed rod, and then can cooperate with the buffer spring for buffering.

[0018] 2. The combined slewing bearing can assist in disassembly and assembly of the cleaning ring frame by providing an external threaded circular frame and an internal threaded circular frame, thereby providing auxiliary protection for the connection between the bearing inner ring body and the shaft rod.

[0019] 3. The combined slewing bearing is provided with an auxiliary protection structure. Under the action of the annular filter plate and the protective circular frame, the outside of the bearing outer ring body can be auxiliary protected. At the same time, the annular filter plate can be cleaned under the action of components such as the L-shaped plate and the second brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the outer ring body of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the cleaning ring frame of the utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the annular filter plate of the utility model;

[0024] In the figure: 1. Inner ring body; 2. Outer ring body; 3. Worm; 4. Cleaning and protective structure; 41. Externally threaded circular frame; 42. Internally threaded circular frame; 43. Cleaning ring frame; 44. First brush; 45. Fixed rod; 46. Sliding cylinder; 47. Protective plate; 48. Buffer spring; 5. Auxiliary protective structure; 51. Connecting ring block; 52. Annular filter plate; 53. Auxiliary ring plate; 54. Protective circular frame; 55. Annular sliding frame; 56. Auxiliary sliding rod; 57. L-shaped plate; 58. Second brush; 59. Positioning rod; 510. Positioning hole. DETAILED DESCRIPTION

[0025] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0026] like Figure 1-4 As shown, the utility model provides a technical solution: a combined slewing bearing, comprising an inner ring body 1 and an outer ring body 2, the outer ring edge of the outer ring body 2 is a meshing surface, the outer surface of the outer ring body 2 is meshingly connected with a worm 3, the worm 3 can cooperate with the outer ring body 2 for transmission, the top and bottom of the inner ring body 1 are provided with a cleaning protection structure 4, the top of the outer ring body 2 is provided with an auxiliary protection structure 5, the cleaning protection structure 4 includes a cleaning ring frame 43, the cleaning ring frame 43 can protect and clean the connection between the inner ring body 1 and the shaft rod, the inner wall of the cleaning ring frame 43 is fixedly connected with a first brush 44, the first brush 44 can clean the shaft rod when it is separated from the inner ring body 1, the auxiliary protection structure 5 includes an annular filter plate 52, the outer surface bottom of the annular filter plate 52 is fixedly connected with a protective circular frame 54, the protective circular frame 54 can cooperate with the annular filter plate 52 to protect the outer ring body 2.

[0027] Specifically, such as Figure 2-Figure 3As shown, the top and bottom of the outer surface of the inner ring body 1 are fixedly connected to an externally threaded circular frame 41, and the outer surface of the externally threaded circular frame 41 is threadedly connected to the internally threaded circular frame 42. The externally threaded circular frame 41 can cooperate with the internally threaded circular frame 42 for auxiliary fixation, so that the cleaning ring frame 43 can be disassembled and assembled, and the top of the outer surface of the internally threaded circular frame 42 is fixedly connected to the bottom of the outer surface of the cleaning ring frame 43. The outer surface of the cleaning ring frame 43 is fixedly connected to a fixing rod 45, and one end of the outer surface of the fixing rod 45 is slidably connected to a sliding cylinder 46. The sliding cylinder 46 can slide on the outer surface of the fixing rod 45, and thus can cooperate with other components to play a role. A protective plate 47 is fixedly connected to one side of the outer surface of the sliding cylinder 46. The protective plate 47 can protect the connection between the inner ring body 1 and the shaft rod. A buffer spring 48 is sleeved on the outer surface of the fixing rod 45, and the two ends of the buffer spring 48 are fixedly connected to the sliding cylinder 46 and the cleaning ring frame 43 respectively, and the buffer spring 48 can cooperate with the protective plate 47 for protection.

[0028] Specifically, such as Figure 4 As shown, the inner surface of the annular filter plate 52 is fixedly connected to a connecting ring block 51, the outer surface bottom of the connecting ring block 51 is fixedly connected to the top of the outer ring body 2, the outer ring surface of the annular filter plate 52 is fixedly connected to an auxiliary ring plate 53, the connecting ring block 51 and the auxiliary ring plate 53 can be used in conjunction with the annular filter plate 52, the top of the auxiliary ring plate 53 is fixedly connected to an annular sliding frame 55, the inner wall of the annular sliding frame 55 is slidably connected to an auxiliary sliding rod 56, and the auxiliary sliding rod 56 can slide on the inner wall of the annular sliding frame 55 , and can then cooperate with other components to play a role. The top of the outer surface of the auxiliary sliding rod 56 is fixedly connected to an L-shaped plate 57, and the bottom of the outer surface of the L-shaped plate 57 is fixedly connected to a second brush 58. The L-shaped plate 57 can drive the second brush 58 to move, and thus the annular filter plate 52 can be cleaned. A locking rod 59 is inserted into the inner wall of one side of the L-shaped plate 57, and a locking hole 510 is opened on one side of the auxiliary ring plate 53. The locking rod 59 can cooperate with the locking hole 510 to assist in fixing the L-shaped plate 57.

[0029] The working principle of this utility model is:

[0030] S1. When in use, the external threaded circular frame 41 and the internal threaded circular frame 42 are fixed, and the cleaning ring frame 43 can be disassembled and assembled. At this time, the connection between the inner ring body 1 and the shaft can be cleaned and protected under the action of the first brush 44;

[0031] S2. When subjected to external impact, the protective plate 47 can drive the sliding cylinder 46 to slide on the outer surface of the fixed rod 45, thereby driving the buffer spring 48 to deform, thereby playing a protective role;

[0032] S3. Separate the locking rod 59 from the locking hole 510 and push the L-shaped plate 57 to make the auxiliary slide rod 56 slide on the inner wall of the annular slide frame 55, thereby driving the second brush 58 to clean the outer surface of the annular filter plate 52.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0034] The above describes in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A combined slewing bearing, comprising an inner ring (1) and an outer ring (2), characterized in that: The outer ring edge of the outer ring body (2) is a toothed surface, the outer surface of the outer ring body (2) is meshedly connected with a worm (3), the top and bottom of the inner ring body (1) are provided with a cleaning protection structure (4), the top of the outer ring body (2) is provided with an auxiliary protection structure (5), the cleaning protection structure (4) includes a cleaning ring frame (43), the inner wall of the cleaning ring frame (43) is fixedly connected with a first brush (44), the auxiliary protection structure (5) includes an annular filter plate (52), the outer surface bottom of the annular filter plate (52) is fixedly connected with a protective circular frame (54).

2. The combined slewing bearing according to claim 1, characterized in that: The top and bottom of the outer surface of the inner ring body (1) are fixedly connected to an external threaded circular frame (41), the outer surface of the external threaded circular frame (41) is threadedly connected to an internal threaded circular frame (42), and the top of the outer surface of the internal threaded circular frame (42) is fixedly connected to the bottom of the outer surface of the cleaning ring frame (43).

3. The combined slewing bearing according to claim 1, characterized in that: The outer surface of the cleaning ring frame (43) is fixedly connected to a fixing rod (45), one end of the outer surface of the fixing rod (45) is slidably connected to a sliding cylinder (46), and one side of the outer surface of the sliding cylinder (46) is fixedly connected to a protective plate (47).

4. The combined slewing bearing according to claim 3, characterized in that: The outer surface of the fixed rod (45) is sleeved with a buffer spring (48), and the two ends of the buffer spring (48) are fixedly connected to the sliding cylinder (46) and the cleaning ring frame (43) respectively.

5. The combined slewing bearing according to claim 1, characterized in that: The inner surface of the annular filter plate (52) is fixedly connected to a connecting ring block (51), and the bottom of the outer surface of the connecting ring block (51) is fixedly connected to the top of the outer ring body (2).

6. The combined slewing bearing according to claim 1, characterized in that: The outer ring surface of the annular filter plate (52) is fixedly connected to an auxiliary annular plate (53), the top of the auxiliary annular plate (53) is fixedly connected to an annular sliding frame (55), and the inner wall of the annular sliding frame (55) is slidably connected to an auxiliary sliding rod (56).

7. The combined slewing bearing according to claim 6, characterized in that: The top of the outer surface of the auxiliary sliding rod (56) is fixedly connected to an L-shaped plate (57), the bottom of the outer surface of the L-shaped plate (57) is fixedly connected to a second brush bristle (58), a locking rod (59) is inserted into the inner wall of one side of the L-shaped plate (57), and a locking hole (510) is opened on one side of the auxiliary ring plate (53).

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