Wear-resistant self-aligning roller bearing

Abstract

The utility model discloses a wear-resistant self-aligning roller bearing, which belongs to the technical field of self-aligning roller bearings and comprises a first outer ring, a second outer ring is mounted on one side of the first outer ring, retainers are mounted on the inner sides of the first outer ring and the second outer ring, arc-shaped guide grooves are formed in the inner sides of the first outer ring and the second outer ring, and the first outer ring and the second outer ring are arranged in the arc-shaped guide grooves. The side, facing the second outer ring, of the first outer ring is connected with an insertion block. According to the wear-resistant self-aligning roller bearing, when the roller body rolls, the balls can be driven to rotate in the rolling grooves, so that the friction force between the roller body and the retainer is reduced, a worker can inject lubricating oil into the oil guide grooves through the oil injection ports, and the lubricating oil flowing in the oil guide grooves can be shunted by the oil distribution grooves; and the lubricating oil flows into the mounting groove from the oil outlet, so that the lubricating oil is uniformly smeared on the roller body, the arc-shaped guide groove and the guide groove through the rotation of the roller body and the retainer, the friction of the roller body during rotation is reduced, and the abrasion is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of spherical roller bearings, in particular to a wear-resistant spherical roller bearing. Background Art

[0002] Spherical roller bearings are a type of bearing. Common spherical roller bearings include a coaxially arranged outer ring, an inner ring and a cage arranged therebetween. A number of rollers are arranged circumferentially in the gap between the inner ring and the outer ring. The rollers are arranged in a row on each side of the cage. The cage evenly separates the rollers in the circumferential direction, and the outer ring and the inner ring are both arranged with concave arc surfaces on the side facing the rollers.

[0003] When the spherical roller bearing is in use, the cylindrical roller will rotate and roll at high speed between the outer ring and the inner ring of the bearing. During the rolling process, the roller will have relative friction with the outer ring and the inner ring. Therefore, after long-term use, the outer ring, inner ring and roller are prone to wear, thereby affecting the normal service life of the bearing. Utility Model Content

[0004] In order to overcome the above defects, the utility model provides a wear-resistant spherical roller bearing, which solves the problem that when the roller rolls at high speed, relative friction occurs between the roller and the outer ring and the inner ring, thereby causing wear between the outer ring, the inner ring and the roller, affecting the normal service life of the bearing.

[0005] To achieve the above object, the utility model provides the following technical solutions: a wear-resistant spherical roller bearing, comprising a first outer ring, a second outer ring is installed on one side of the first outer ring, a retainer is installed on the inner sides of the first outer ring and the second outer ring, an arc guide groove is arranged on the inner sides of the first outer ring and the second outer ring, an insert block is connected to the side of the first outer ring facing the second outer ring, a slot is provided on one side of the second outer ring, and a first threaded hole is provided on the second outer ring;

[0006] The retaining frame is provided with mounting grooves on both sides, and the roller body is installed on the retaining frame through the mounting grooves. The retaining frame is provided with an oil guide groove inside, and a plurality of oil distribution grooves are provided in the retaining frame. The retaining frame is provided with an oil filling port, and a sealing plug is inserted into the oil filling port. Rolling grooves are provided on the inner walls on both sides of the mounting groove, and balls are movably installed in the rolling grooves.

[0007] As a further solution of the utility model: the insert blocks are four in total and are symmetrical about the axis of the first outer ring, and the insert blocks are inserted into the slots.

[0008] As a further solution of the utility model: the oil distribution groove passes through the inner wall of the oil guide groove, and oil outlets are opened on both sides of the inner wall of the oil distribution groove, and the oil outlets pass through both sides of the installation groove.

[0009] As a further solution of the utility model: an inner ring is installed inside the retaining frame, a guide groove is opened on the inner ring, and the roller body rolls in the arc guide groove and the guide groove.

[0010] As a further solution of the utility model: a second threaded hole is formed on the insert block, the first threaded hole and the second threaded hole have the same size and are threadedly connected with a bolt.

[0011] As a further solution of the utility model: a pull ring is connected above the sealing plug, and a sealing ring is connected to the sealing plug.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The wear-resistant spherical roller bearing is provided with a mounting groove, a roller body, a rolling groove, a ball, an oil filling port, an oil guide groove, an oil distribution groove and an oil outlet. When the roller body is installed in the mounting groove, both sides of the roller body will contact with the ball, and when the roller body rolls, it will drive the ball to rotate in the rolling groove, thereby reducing the friction between the roller body and the retaining frame. The staff can inject lubricating oil into the oil guide groove through the oil filling port, and the lubricating oil flowing in the oil guide groove will be diverted by the oil distribution groove and flow into the mounting groove from the oil outlet, so that the lubricating oil is evenly applied to the roller body, the arc guide groove and the guide groove through the rotation of the roller body and the retaining frame, thereby reducing the friction of the roller body during rotation, reducing wear, and ensuring the normal service life of the bearing.

[0014] 2. The wear-resistant spherical roller bearing is provided with an insert block, a slot, a first threaded hole, a second threaded hole, a bolt, a sealing plug and a sealing ring. By inserting the insert block into the slot, the first threaded hole and the second threaded hole can be aligned with each other, so that it is convenient for the staff to screw the bolts into the first threaded hole and the second threaded hole to fix the first outer ring and the second outer ring together. The staff only needs to loosen the bolts to disassemble the first outer ring and the second outer ring, so that it is convenient for the staff to clean and replace the roller body and the retaining frame, and it is convenient for the staff to inject lubricating oil into the retaining frame. By inserting the sealing plug into the oil filling port, the sealing plug cooperates with the sealing ring to seal the oil filling port to prevent the lubricating oil from spilling when the retaining frame rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the retaining frame, the first outer ring and the second outer ring of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the cage of the utility model;

[0018] Figure 4 for Figure 3 Schematic diagram of the enlarged structure in part A;

[0019] In the figure: 1. first outer ring; 2. second outer ring; 3. retaining frame; 4. arc guide groove; 5. plug-in block; 6. slot; 7. first threaded hole; 8. mounting groove; 9. roller body; 10. oil guide groove; 11. oil distribution groove; 12. oil filling port; 13. sealing plug; 14. rolling groove; 15. ball; 16. oil outlet; 17. inner ring; 18. guide groove; 19. second threaded hole; 20. bolt; 21. pull ring; 22. sealing ring. DETAILED DESCRIPTION

[0020] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0021] like Figure 1-4 As shown, the utility model provides a technical solution: a wear-resistant spherical roller bearing, comprising a first outer ring 1, a second outer ring 2 is installed on one side of the first outer ring 1, a retainer 3 is installed on the inner sides of the first outer ring 1 and the second outer ring 2, an arc guide groove 4 is arranged on the inner sides of the first outer ring 1 and the second outer ring 2, an inner ring 17 is installed on the inner side of the retainer 3, a guide groove 18 is opened on the inner ring 17, a roller body 9 rolls in the arc guide groove 4 and the guide groove 18, and the rolling of the roller body 9 is guided and restricted by the arc guide groove 4 and the guide groove 18 to prevent the roller body 9 from being skewed when rolling.

[0022] A plug-in block 5 is connected to the side of the first outer ring 1 facing the second outer ring 2, a slot 6 is provided on one side of the second outer ring 2, a total of four plug-in blocks 5 are symmetrical about the axis of the first outer ring 1, the plug-in block 5 is inserted into the slot 6, a first threaded hole 7 is provided on the second outer ring 2, a second threaded hole 19 is provided on the plug-in block 5, the first threaded hole 7 and the second threaded hole 19 are of the same size and are threadedly connected with a bolt 20, by plugging the plug-in block 5 into the slot 6, the staff can quickly position and install the first outer ring 1 on the second outer ring 2, and by screwing the bolt 20 into the first threaded hole 7 and the second threaded hole 19, the connection can be reinforced to prevent the connection between the first outer ring 1 and the second outer ring 2 from loosening.

[0023] Mounting grooves 8 are provided on both sides of the retaining frame 3, and roller bodies 9 are installed on the retaining frame 3 through the mounting grooves 8. Oil guide grooves 10 are provided inside the retaining frame 3, and multiple oil distribution grooves 11 are provided in the retaining frame 3. The oil distribution grooves 11 pass through the inner wall of the oil guide groove 10. Oil outlets 16 are provided on both sides of the inner wall of the oil distribution groove 11. The oil outlets 16 pass through both sides of the mounting groove 8. The lubricating oil is transported to various parts of the retaining frame 3 through the oil guide grooves 10, and the lubricating oil is applied to multiple roller bodies 9 installed on the retaining frame 3 by using the oil distribution grooves 11 and the oil outlets 16, thereby reducing the friction of the roller bodies 9 and reducing wear.

[0024] An oil filling port 12 is provided on the retaining frame 3, a sealing plug 13 is inserted into the oil filling port 12, a pull ring 21 is connected to the top of the sealing plug 13, a sealing ring 22 is connected to the sealing plug 13, rolling grooves 14 are provided on the inner walls on both sides of the mounting groove 8, and balls 15 are movably installed in the rolling grooves 14. The oil filling port 12 is sealed by the sealing ring 22 on the sealing plug 13 to prevent the lubricating oil from spilling out of the oil filling port 12, and the use of the ball 15 can reduce the contact and friction between the roller body 9 and the retaining frame 3, thereby reducing the wear of the roller body 9.

[0025] The working principle of the utility model is:

[0026] The roller body 9 is installed in the installation groove 8. At this time, both sides of the roller body 9 will contact the balls 15. When the roller body 9 rolls, it will drive the balls 15 to rotate in the rolling groove 14, thereby reducing the friction between the roller body 9 and the cage 3. The staff can inject lubricating oil into the cage 3 through the oil filling port 12, and transport the lubricating oil to various parts of the cage 3 through the oil guide groove 10. At the same time, the lubricating oil flowing in the oil guide groove 10 will be diverted by the oil distribution groove 11 and flow into the installation groove 8 from the oil outlet 16. The staff can insert the plug 5 into the slot 6 so that the first threaded hole 7 and the second threaded hole 7 are aligned. The grooved holes 19 can be aligned with each other, so that it is convenient for the staff to screw the bolts 20 into the first threaded hole 7 and the second threaded hole 19, so that the first outer ring 1 and the second outer ring 2 are fixedly connected together, and the retaining frame 3 is restricted between the arc guide groove 4 and the guide groove 18. When the roller body 9 and the retaining frame 3 rotate, the lubricating oil flowing out of the oil outlet 16 will be evenly applied to the roller body 9, the arc guide groove 4 and the guide groove 18, thereby reducing the friction of the roller body 9 during rotation, and by inserting the sealing plug 13 into the oil filling port 12, the sealing plug 13 cooperates with the sealing ring 22 to seal the oil filling port 12.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A wear-resistant spherical roller bearing, comprising a first outer ring (1), characterized in that: A second outer ring (2) is installed on one side of the first outer ring (1), a retaining frame (3) is installed on the inner sides of the first outer ring (1) and the second outer ring (2), an arc guide groove (4) is arranged on the inner sides of the first outer ring (1) and the second outer ring (2), an insert block (5) is connected to the side of the first outer ring (1) facing the second outer ring (2), a slot (6) is provided on one side of the second outer ring (2), and a first threaded hole (7) is provided on the second outer ring (2); The retaining frame (3) is provided with mounting grooves (8) on both sides, and a roller body (9) is installed on the retaining frame (3) through the mounting grooves (8). An oil guide groove (10) is provided inside the retaining frame (3), and a plurality of oil distribution grooves (11) are provided inside the retaining frame (3). An oil filling port (12) is provided on the retaining frame (3), and a sealing plug (13) is inserted into the oil filling port (12). Rolling grooves (14) are provided on the inner walls on both sides of the mounting groove (8), and balls (15) are movably installed in the rolling grooves (14).

2. A wear-resistant spherical roller bearing according to claim 1, characterized in that: There are four insert blocks (5) in total, which are symmetrical about the axis of the first outer ring (1), and the insert blocks (5) are inserted into the slots (6).

3. The wear-resistant spherical roller bearing according to claim 1, characterized in that: The oil separation groove (11) passes through the inner wall of the oil guide groove (10), and oil outlets (16) are provided on both sides of the inner wall of the oil separation groove (11), and the oil outlets (16) pass through both sides of the installation groove (8).

4. The wear-resistant spherical roller bearing according to claim 1, characterized in that: An inner ring (17) is installed inside the retaining frame (3), a guide groove (18) is provided on the inner ring (17), and the roller body (9) rolls in the arc-shaped guide groove (4) and the guide groove (18).

5. The wear-resistant spherical roller bearing according to claim 1, characterized in that: The insert block (5) is provided with a second threaded hole (19); the first threaded hole (7) and the second threaded hole (19) have the same size and are threadedly connected with a bolt (20).

6. The wear-resistant spherical roller bearing according to claim 1, characterized in that: A pull ring (21) is connected to the top of the sealing plug (13), and a sealing ring (22) is connected to the sealing plug (13).

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