Cylindrical roller self-aligning bearing for continuous casting machine

Abstract

The utility model relates to the technical field of self-aligning bearings, in particular to a cylindrical roller self-aligning bearing for a continuous casting machine, which comprises an outer shaft washer, an inner shaft washer and a covering component, the inner shaft washer is mounted on the inner wall of the outer shaft washer, a cylindrical roller is mounted on the inner wall of the inner shaft washer, the cylindrical roller is abutted against the inner wall of the outer shaft washer, and the covering component is arranged on the surface of the outer shaft washer. The covering assembly comprises a locating pin, an inserting groove is formed in the surface of the outer shaft ring, the locating pin is connected with the inner wall of the inserting groove in an inserted mode, a cover plate is fixedly connected to the surface of the locating pin, a gap ring is fixedly connected to the surface of the cover plate, and a connecting ring is fixedly connected to the surface of the cover plate. According to the self-aligning bearing, the shielding assembly and the limiting assembly are arranged, so that a gap of the self-aligning bearing can be shielded, the problem that the roller of the self-aligning bearing is exposed outside, dust in the air easily enters a roller raceway, and abrasion of the roller raceway is aggravated is solved, the dust prevention performance of the self-aligning bearing is further improved, and the service life of the self-aligning bearing is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of self-aligning bearings, in particular to a cylindrical roller self-aligning bearing for a continuous casting machine. Background Art

[0002] A self-aligning shaft refers to a bearing whose ring raceway is spherical and can adapt to the angular deviation movement between the axis lines of the inner and outer raceways. It mainly bears radial loads and can also bear a small amount of bidirectional axial loads. A continuous casting machine is a piece of equipment that completes the casting industry. When producing a continuous casting machine, self-aligning bearings are installed at key parts of the continuous casting machine to reduce friction at key parts and increase the life of the equipment.

[0003] Prior art, such as the utility model with publication number CN206904070U, discloses a self-aligning bearing with a combined outer ring. The patent adopts a combined outer ring, an inner ring, a retainer and two sets of rollers. The combined outer ring includes a first outer ring and a second outer ring axially spliced ​​to each other. The first outer ring is coaxial with the second outer ring. The inner side walls of the first outer ring and the second outer ring are both concave spherical surfaces with the same diameter. The concave spherical surfaces on the first outer ring and the second outer ring are spliced ​​to each other into a concentric large spherical surface. The large spherical surface forms an annular spherical raceway around the central axis of the combined outer ring. The first outer ring and the second outer ring are provided with corresponding axial end faces. There are a plurality of axial tenons and slots of the same number, the plurality of axial tenons on the first outer ring can be plugged into the plurality of slots on the second outer ring in a one-to-one matching manner, and the plurality of axial tenons on the second outer ring can be plugged into the plurality of slots on the first outer ring in a one-to-one matching manner, so as to solve the problem of difficulty in assembly of the self-aligning bearing due to the spherical raceway of the outer ring having small diameters at both ends and a large diameter in the middle, while the cross section of the inner ring has correspondingly small diameters at both ends and a large diameter in the middle, and the self-aligning bearing is an angular contact bearing, and the radial maximum diameter of the annular array composed of a plurality of rollers is larger than the minimum inner diameter at both ends of the inner ring.

[0004] The inventors have discovered in their daily work that in the process of using self-aligning bearings, there is a problem that after the existing self-aligning bearings such as the above-mentioned are installed, the rollers are directly exposed to the outside world. Since the production environment of the continuous casting machine is relatively complex, when the bearing rollers are exposed to the outside world, impurities such as dust in the outside air will enter the raceway through the gap, causing the bearing rollers to be disturbed by dust and wear the raceway during rotation, resulting in a reduction in the accuracy of the bearing. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that when the bearing rollers are exposed to the outside world, impurities such as dust in the outside air will enter the raceway through the gap, so that the bearing rollers will be disturbed by the dust and wear the raceway during rotation, resulting in reduced bearing accuracy. A cylindrical roller self-aligning bearing for a continuous casting machine is proposed to solve the problem.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cylindrical roller self-aligning bearing for a continuous casting machine, comprising an outer shaft ring, an inner shaft ring and a cover assembly, the inner shaft ring is installed on the inner wall of the outer shaft ring, the inner wall of the inner shaft ring is installed with a cylindrical roller, the cylindrical roller abuts against the inner wall of the outer shaft ring, the cover assembly is arranged on the surface of the outer shaft ring, the cover assembly includes a locating pin, the surface of the outer shaft ring is provided with a slot, the locating pin is made of metal, the locating pin is plugged into the inner wall of the slot, the surface of the locating pin is fixedly connected with a cover plate, the surface of the cover plate is fixedly connected with a gap ring, the surface of the cover plate is fixedly connected with a connecting ring, and the surface of the inner shaft ring is provided with a rotating groove.

[0007] Preferably, there are multiple positioning pins, which are arranged in a circular array about the cover plate. Through the cooperation between the positioning pins and the slots, the position of the cover plate can be initially restricted, thereby improving the stability of the cover plate before installation.

[0008] Preferably, the cover plate abuts against the surface of the outer shaft ring, and the cover plate abuts against the surface of the inner shaft ring. There are two cover plates, and the two cover plates are symmetrically arranged about the outer shaft ring. The cover plates can protect the area between the outer shaft ring and the inner shaft ring, thereby improving the protection effect of the bearing itself.

[0009] Preferably, the gap ring abuts against the inner circumference of the outer shaft ring, the gap ring is sleeved with the outer circumference of the inner shaft ring, and the connecting ring is slidably connected to the inner wall of the rotating groove. Through the cooperation of the gap ring and the connecting ring, the dustproof effect of the cover plate can be increased.

[0010] Preferably, a limiting component is provided on the surface of the cover plate, and the limiting component includes a bolt column, a threaded hole is provided at the junction of the cover plate and the locating pin, the bolt column is threadedly connected to the inner wall of the threaded hole, a bolt head is fixedly connected to the surface of the bolt column, a circular groove is provided on the side surface of the bolt column, the bolt column is located at the inner wall of the circular groove and is fixedly connected to a magnet column, a threaded groove is provided on the inner wall of the slot of the outer shaft ring, and the bolt column is threadedly connected to the inner wall of the threaded groove, and the position of the bolt column inserted into the locating pin can be preliminarily constrained by the magnetic force of the magnet column itself, thereby improving the stability of the bolt column during the tightening process.

[0011] Preferably, the cover plate is provided with a groove on the inner wall of the threaded hole, the bolt head is matched with the groove, and the bolt head is plugged into the inner wall of the groove. By providing a cross groove on the bolt head, an operator can use a tool to rotate the bolt head to tighten the bolt column.

[0012] Preferably, the bolt column passes through the inner wall of the threaded hole, and there are multiple bolt columns, which are arranged in a circular array about the outer shaft ring. Through the cooperation between the bolt column and the threaded groove, the position of the cover plate can be limited on the outer shaft ring.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] The utility model discloses a cover assembly and a limiting assembly are provided, after the installation of the columnar roller and the inner shaft ring is completed, the cover plate is taken, the positioning pin on the cover plate is aligned with the slot, and the cover plate is pushed. The cover plate pushes the positioning pin into the slot. When the cover plate reaches the surface of the outer shaft ring, the gap ring is inserted into the gap formed by the inner shaft ring and the outer shaft ring, and the connecting ring is inserted into the rotating groove. The bolt column is taken out, and the bolt column is inserted into the threaded hole. The magnet column is inserted into the threaded hole under the action of the bolt column, and the bolt column is adsorbed in the threaded hole by its own magnetic force. The bolt head is rotated with the help of a tool, and the bolt head drives the bolt column to rotate. The bolt column is gradually screwed into the threaded groove during the rotation process. When the bolt column is tightened, the assembly operation of the cover assembly is completed. By providing the cover assembly and the limiting assembly, the gap of the self-aligning bearing can be blocked, thereby reducing the exposure of the roller of the self-aligning bearing to the outside world, making it easy for dust in the air to enter the roller raceway, resulting in the problem of aggravated wear of the roller raceway, and further improving the dustproofness and service life of the self-aligning bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a cylindrical roller self-aligning bearing for a continuous casting machine;

[0016] Figure 2 The utility model provides a schematic diagram of the structure of a cylindrical roller self-aligning bearing for a continuous casting machine from a bottom view;

[0017] Figure 3 The utility model provides a front view structural schematic diagram of a cylindrical roller self-aligning bearing for a continuous casting machine;

[0018] Figure 4 The utility model proposes a cylindrical roller self-aligning bearing for a continuous casting machine. Figure 3 Schematic diagram of the structure at A in the middle;

[0019] Figure 5 The utility model proposes a cylindrical roller self-aligning bearing for a continuous casting machine. Figure 3 Schematic diagram of the structure at B in the middle

[0020] Figure 6 The utility model provides a partial structural schematic diagram of a cylindrical roller self-aligning bearing for a continuous casting machine;

[0021] Figure 7The utility model provides a schematic diagram of the bolt structure of a cylindrical roller self-aligning bearing for a continuous casting machine.

[0022] Legend:

[0023] 1. Outer shaft ring; 2. Inner shaft ring; 3. Cylindrical roller; 4. Cover assembly; 41. Slot; 42. Locating pin; 43. Cover plate; 44. Clearance ring; 45. Connecting ring; 46. Rotating groove; 5. Limiting assembly; 51. Threaded hole; 52. Groove; 53. Bolt column; 54. Bolt head; 55. Magnet column; 56. Threaded groove. DETAILED DESCRIPTION

[0024] See also Figure 1-5 The utility model provides a technical solution: a cylindrical roller self-aligning bearing for a continuous casting machine, comprising an outer shaft ring 1, an inner shaft ring 2 and a cover assembly 4, the inner shaft ring 2 is installed on the inner wall of the outer shaft ring 1, a cylindrical roller 3 is installed on the inner wall of the inner shaft ring 2, the cylindrical roller 3 is abutted against the inner wall of the outer shaft ring 1, the cover assembly 4 is arranged on the surface of the outer shaft ring 1, and a limiting assembly 5 is arranged on the surface of the cover plate 43.

[0025] The specific configuration and functions of the covering component 4 and the limiting component 5 are described in detail below.

[0026] In this embodiment: the covering assembly 4 includes a positioning pin 42, a slot 41 is provided on the surface of the outer shaft ring 1, the positioning pin 42 is made of metal, the positioning pin 42 is plugged into the inner wall of the slot 41, a cover plate 43 is fixedly connected to the surface of the positioning pin 42, a gap ring 44 is fixedly connected to the surface of the cover plate 43, a connecting ring 45 is fixedly connected to the surface of the cover plate 43, and a rotating groove 46 is provided on the surface of the inner shaft ring 2.

[0027] Specifically, there are multiple positioning pins 42, which are arranged in a circular array about the cover plate 43. Through the cooperation between the positioning pins 42 and the slots 41, the position of the cover plate 43 can be initially restricted, thereby improving the stability of the cover plate 43 before installation.

[0028] Specifically, the cover plate 43 abuts against the surface of the outer shaft ring 1 , and the cover plate 43 abuts against the surface of the inner shaft ring 2 . There are two cover plates 43 , and the two cover plates 43 are symmetrically arranged with respect to the outer shaft ring 1 .

[0029] In this embodiment, the cover plate 43 can protect the area between the outer shaft ring 1 and the inner shaft ring 2, thereby improving the protection effect of the bearing itself.

[0030] Specifically, the gap ring 44 abuts against the inner circumference of the outer shaft ring 1, the gap ring 44 is sleeved with the outer circumference of the inner shaft ring 2, and the connecting ring 45 is slidingly connected to the inner wall of the rotating groove 46. Through the cooperation of the gap ring 44 and the connecting ring 45, the dustproof effect of the cover plate 43 can be increased.

[0031] In this embodiment: the limiting component 5 includes a bolt column 53, a threaded hole 51 is provided at the connection between the cover plate 43 and the positioning pin 42, the bolt column 53 is threadedly connected to the inner wall of the threaded hole 51, a bolt head 54 is fixedly connected to the surface of the bolt column 53, a circular groove is provided on the side surface of the bolt column 53, a magnet column 55 is fixedly connected to the inner wall of the circular groove of the bolt column 53, a threaded groove 56 is provided on the inner wall of the outer shaft ring 1 located in the slot 41, and the bolt column 53 is threadedly connected to the inner wall of the threaded groove 56.

[0032] In this embodiment, the position of the bolt column 53 inserted into the positioning pin 42 can be initially constrained by the magnetic force of the magnet column 55 itself, thereby improving the stability of the bolt column 53 during the tightening process.

[0033] Specifically, a groove 52 is provided on the inner wall of the threaded hole 51 of the cover plate 43, and the bolt head 54 is matched with the groove 52, and the bolt head 54 is plugged into the inner wall of the groove 52. By providing a cross groove on the bolt head 54, an operator can use a tool to rotate the bolt head 54, thereby tightening the bolt column 53.

[0034] Specifically, the bolt column 53 passes through the inner wall of the threaded hole 51 . There are multiple bolt columns 53 , and the multiple bolt columns 53 are arranged in a circular array about the outer shaft ring 1 .

[0035] In this embodiment, the position of the cover plate 43 can be restricted on the outer shaft ring 1 by the cooperation between the bolt column 53 and the thread groove 56 .

[0036] Working principle: After installing the cylindrical roller 3 and the inner shaft ring 2, take the cover plate 43, align the positioning pin 42 on the cover plate 43 with the slot 41, push the cover plate 43, and the cover plate 43 pushes the positioning pin 42 to insert into the slot 41. When the cover plate 43 reaches the surface of the outer shaft ring 1, the gap ring 44 is inserted into the gap formed by the inner shaft ring 2 and the outer shaft ring 1, and the connecting ring 45 is inserted into the rotating groove 46. Take out the bolt column 53 and insert the bolt column 53 into the threaded hole 51. The magnet column 55 is inserted into the threaded hole 51 under the action of the bolt column 53, and the bolt column 55 is inserted into the threaded hole 51 by its own magnetic force. 3 is adsorbed in the threaded hole 51, and the bolt head 54 is rotated with the help of a tool. The bolt head 54 drives the bolt column 53 to rotate, and the bolt column 53 is gradually screwed into the threaded groove 56 during the rotation. When the bolt column 53 is tightened, the assembly operation of the cover component 4 is completed. By setting the cover component 4 and the limiting component 5, the gap of the self-aligning bearing can be blocked, thereby reducing the roller of the self-aligning bearing from being exposed to the outside world, making it easy for dust in the air to enter the roller raceway, resulting in the problem of aggravated wear of the roller raceway, and further improving the dust resistance and service life of the self-aligning bearing.

Claims

1. A cylindrical roller self-aligning bearing for a continuous casting machine, comprising an outer shaft ring (1), an inner shaft ring (2) and a cover assembly (4), characterized in that: The inner shaft ring (2) is mounted on the inner wall of the outer shaft ring (1); a columnar roller (3) is mounted on the inner wall of the inner shaft ring (2); the columnar roller (3) abuts against the inner wall of the outer shaft ring (1); the cover assembly (4) is arranged on the surface of the outer shaft ring (1); the cover assembly (4) comprises a positioning pin (42); a slot (41) is provided on the surface of the outer shaft ring (1); the positioning pin (42) is plugged into the inner wall of the slot (41); a cover plate (43) is fixedly connected to the surface of the positioning pin (42); a gap ring (44) is fixedly connected to the surface of the cover plate (43); a connecting ring (45) is fixedly connected to the surface of the cover plate (43); and a rotation groove (46) is provided on the surface of the inner shaft ring (2).

2. The cylindrical roller self-aligning bearing for a continuous casting machine according to claim 1, characterized in that: The number of the positioning pins (42) is multiple, and the multiple positioning pins (42) are arranged in a circular array with respect to the cover plate (43).

3. The cylindrical roller self-aligning bearing for a continuous casting machine according to claim 1, characterized in that: The cover plate (43) abuts against the surface of the outer shaft ring (1), and the cover plate (43) abuts against the surface of the inner shaft ring (2). There are two cover plates (43), and the two cover plates (43) are symmetrically arranged with respect to the outer shaft ring (1).

4. The cylindrical roller self-aligning bearing for a continuous casting machine according to claim 1, characterized in that: The gap ring (44) is in contact with the inner circumference of the outer shaft ring (1), the gap ring (44) is sleeved with the outer circumference of the inner shaft ring (2), and the connection ring (45) is slidably connected with the inner wall of the rotating groove (46).

5. The cylindrical roller self-aligning bearing for a continuous casting machine according to claim 1, characterized in that: A limiting component (5) is provided on the surface of the cover plate (43), and the limiting component (5) comprises a bolt column (53). A threaded hole (51) is provided at the connection between the cover plate (43) and the positioning pin (42), and the bolt column (53) is threadedly connected to the inner wall of the threaded hole (51). A bolt head (54) is fixedly connected to the surface of the bolt column (53), and a circular groove is provided on the side surface of the bolt column (53). A magnet column (55) is fixedly connected to the inner wall of the circular groove of the bolt column (53). A threaded groove (56) is provided on the inner wall of the outer shaft ring (1) located in the slot (41), and the bolt column (53) is threadedly connected to the inner wall of the threaded groove (56).

6. The cylindrical roller self-aligning bearing for a continuous casting machine according to claim 5, characterized in that: The cover plate (43) is provided with a groove (52) on the inner wall of the threaded hole (51), the bolt head (54) is matched with the groove (52), and the bolt head (54) is plugged into the inner wall of the groove (52).

7. The cylindrical roller self-aligning bearing for a continuous casting machine according to claim 5, characterized in that: The bolt column (53) passes through the inner wall of the threaded hole (51), there are a plurality of the bolt columns (53), and the plurality of the bolt columns (53) are arranged in a circular array about the outer shaft ring (1).

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