A long arc surface roller bearing specially used for continuous casting machine and arc surface processing technology

Abstract

The present invention provides a long arc surface roller bearing for continuous casting machine and arc surface processing technology, which relates to the field of bearings. The bearing comprises an inner ring, an outer ring and a plurality of balls, wherein the outer rings are two in total and are symmetrically arranged, the two outer rings form a bearing outer ring, the inner sides of the two outer rings are both arranged as inner arc surfaces, the outer sides of the inner rings are arranged as outer arc surfaces, a plurality of balls are arranged between the inner arc surfaces and the outer arc surfaces, the outer rings on one side are arranged with evenly distributed matching rings, and the outer rings on the other side are arranged with evenly distributed limiting grooves, the matching rings and the limiting grooves are one-to-one corresponding and mutually plugged, the outer rings between the matching rings and the limiting grooves are penetrated with fixing holes, and the number of fixing holes on the outer rings on both sides is consistent and one-to-one corresponding. By setting the inner arc surface and the outer arc surface to be non-coaxial, when the inner ring drives the balls, the balls can effectively axially squeeze the inner arc surface of the outer ring, so that the axial force of the bearing is reduced and the wear is reduced, thereby extending the bearing life.

Description

Technical Field

[0001] The invention relates to the technical field of roller bearings, in particular to a long arc surface roller bearing specially used for a continuous casting machine and an arc surface processing technology. Background Art

[0002] The continuous casting machine is used for steel casting. One end of the continuous casting machine roller is the fixed end, and the other end is the floating end. The floating end mainly bears the radial load of the bearing, and also needs to bear the lateral load. The roller bearing is a type of bearing commonly used at the floating end of the continuous casting machine. The internal arc surface of the roller bearing is set, so that when the roller bearing is subjected to lateral load, its outer ring can float at one end of the continuous casting machine according to the force of the roller.

[0003] When the existing roller bearings of continuous casting machines are actually used, due to the lateral load and radial load, the inner side of the outer ring of the bearing needs to be set to an arc shape that does not fit the bearing roller. When the existing arc roller bearings are actually used, the axial movement wear is too large, which leads to a reduction in the service life of the roller bearings. The existing bearings are basically integrally formed. If a certain component is worn too much, the entire bearing needs to be replaced. At the same time, when the existing roller bearings are actually used, the arc surface processing equipment is complicated and the process steps are cumbersome. Therefore, based on the above, the present application proposes a long arc roller bearing and an arc surface processing process specially designed for continuous casting machines. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a long arc surface roller bearing specially used for a continuous casting machine and an arc surface processing technology, which solves the problem of excessive wear of the existing long arc surface roller bearings during lateral movement.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a long arc roller bearing specially used for continuous casting machine, comprising an inner ring, an outer ring and a plurality of balls, the outer rings having two in total and being symmetrically arranged, the two outer rings forming an outer ring of the bearing, the inner sides of the two outer rings being arranged as inner arc surfaces, the outer sides of the inner rings being arranged as outer arc surfaces, a plurality of balls being arranged between the inner arc surfaces and the outer arc surfaces, the outer rings on one side being arranged with evenly distributed matching rings, the outer rings on the other side being arranged with evenly distributed limiting grooves, the matching rings and the limiting grooves being in one-to-one correspondence and plugged into each other, The outer ring between the matching ring and the limiting groove is penetrated by fixing holes, the number of fixing holes on the outer rings on both sides is the same and corresponds to each other, fixing pins are inserted in the corresponding fixing holes of the outer rings on both sides, and both ends of the fixing pins are fixed to the two outer rings by steel nails, the inner arc surface and the outer arc surface are not coaxial, and bearing frames are arranged on both sides of the gap formed between the two outer rings and the inner ring, and the bearing frame uniformly limits multiple balls between the inner arc surface and the outer arc surface, the outer edge of the ball and the outer arc surface fit each other, and the two ends of the inner arc surface fit the outer edge of the ball.

[0006] Preferably, an arc surface processing equipment for a long arc roller bearing specially used for a continuous casting machine comprises a frame and a slide seat slidably arranged on the top of the frame, a three-jaw chuck is arranged on the side of the frame away from the slide seat, a stabilizing rod is fixedly connected to the side of the slide seat close to the three-jaw chuck, an end of the stabilizing rod away from the slide seat is fixedly connected to a second top plate, a hinged plate is hingedly connected to the outer side of the second top plate, the other end of the hinged plate is fixedly connected to the first top plate, a connecting frame is fixedly connected to the middle part of the first top plate close to the second top plate, the other end of the connecting frame is fixedly connected to a limiting sleeve, the limiting sleeve is rotatably sleeved on the connecting rod, and a grinding sheet is arranged on the outer side of the hinged plate.

[0007] Preferably, the connecting rod passes through the stabilizing rod, one end of the connecting rod away from the limiting sleeve is fixedly connected to an output end, the output end is fixedly connected to a linear motor, and the linear motor is fixedly connected to an outer wall of the slide seat.

[0008] Preferably, the stabilizing rod is rotatably connected in the slide seat, the outside of the stabilizing rod is fixedly connected with a first gear, the first gear is meshingly connected with a second gear, the second gear is fixedly connected to the driving end of the driving motor, and the driving motor is fixedly connected to the top of the slide seat.

[0009] Preferably, the three-jaw chuck clamps an outer ring on one side close to the first top plate.

[0010] Preferably, a camber surface processing process of a long camber surface roller bearing specially used for a continuous casting machine comprises the following steps:

[0011] Place the turned outer ring into the inner side of the three-jaw chuck, and the slide slides on the frame. The linear motor drives the limit sleeve to move through the output end of the connecting rod. The limit sleeve adjusts the distance between the first top plate and the second top plate through the connecting frame. The hinged plate becomes an arc and fits on the inner arc surface of the outer ring. The linear motor drives the first gear through the second gear, and the first gear drives the hinged plate to rotate. The hinged plate enables the grinding disc to polish the inner arc surface of the outer ring.

[0012] Working principle: When the continuous casting machine roller is working, the inner ring is subjected to force. When the continuous casting machine roller is heated and elongated, the inner ring is subjected to axial force. The balls on the inner ring are attached to the outer arc surface, and the balls move with the outer arc surface. The side of the balls close to the outer ring squeezes the outer ring on the other side. In this way, the inner arc surface in the outer ring is not coaxial with the outer edge of the balls, so the outer ring will be squeezed and moved axially by the balls. The outer ring is assembled. If the outer ring on one side of the bearing is worn too much, the outer ring can be disassembled and replaced by removing the fixing pins and steel nails. In this way, there is no need to replace the outer ring when the bearing is worn. The whole bearing is replaced. At the same time, when the bearing moves axially, the inner arc surface cooperates with the ball to effectively drive the outer ring, so that when the roller expansion of the continuous casting machine pushes the bearing to move axially, the inner and outer rings are prevented from excessive axial wear and tear, so that the bearing can be used well. When the bearing is processed, the distance between the first top plate and the second top plate is adjustable, so that the hinge plate can be attached to the inner arc surface of the outer ring, so as to realize precise processing of the inner arc surface of the bearing, and the inner arc surface can be better processed to ensure that after the inner arc surface cooperates with the bearing, the bearing can have good axial force movement characteristics.

[0013] The present invention provides a long arc surface roller bearing specially used for continuous casting machine and arc surface processing technology. It has the following beneficial effects:

[0014] The present invention arranges the inner arc surface and the outer arc surface to be non-coaxial, so that when the inner ring drives the ball, the ball can effectively axially squeeze the inner arc surface of the outer ring, so that the axial force of the bearing is reduced and the wear is extended.

[0015] The present invention has a detachable outer ring. When the inner arc surface is excessively worn, the outer ring can be removed and replaced, so that the bearing does not need to be replaced as a whole, thereby reducing costs and increasing the service life of the bearing. At the same time, the length of the fixing pin can be replaced to adjust the distance between the outer rings, the spacing between the inner arc surface and the ball, and the ball drives the inner arc surface at different positions, thereby extending the service life of the bearing.

[0016] The present invention makes the distance between the first top plate and the second top plate adjustable so that the hinge plate can be attached to the inner arc surface of the outer ring, thereby realizing precise processing of the inner arc surface of the bearing. The inner arc surface can be processed better, and the arc surface processing process is simple and efficient, ensuring that after the inner arc surface cooperates with the bearing, the bearing can have good axial force movement characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional view of the present invention;

[0018] Figure 2 An exploded view of the outer ring of the present invention;

[0019] Figure 3 It is a partial stereogram of the outer ring of the present invention;

[0020] Figure 4It is a plan view of the arc surface processing equipment of the long arc surface roller bearing specially used for the continuous casting machine of the present invention;

[0021] Figure 5 It is a partial schematic diagram of the hinge plate of the present invention.

[0022] Among them, 1. inner ring; 2. outer ring; 3. ball; 4. bearing frame; 5. matching ring; 6. limit groove; 7. fixing pin; 8. steel nail; 9. fixing hole; 10. three-jaw chuck; 11. grinding disc; 12. hinged plate; 13. first top plate; 14. connecting frame; 15. limit sleeve; 16. output end; 17. second top plate; 18. stabilizer bar; 19. connecting rod; 20. first gear; 21. second gear; 22. linear motor; 23. frame; 24. inner arc surface; 25. outer arc surface; 26. drive motor; 27. slide seat. DETAILED DESCRIPTION

[0023] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0024] Embodiment 1:

[0025] Reference Figure 1-3 and Figure 5As shown, the embodiment of the present invention provides a long arc surface roller bearing for continuous casting machine, including an inner ring 1, an outer ring 2 and a plurality of balls 3. There are two outer rings 2 and they are symmetrically arranged. The two outer rings 2 constitute the outer ring of the bearing. The inner sides of the two outer rings 2 are both arranged as inner arc surfaces 24, and the outer side of the inner ring 1 is arranged as an outer arc surface 25. A plurality of balls 3 are arranged between the inner arc surface 24 and the outer arc surface 25. The outer ring 2 on one side is provided with evenly distributed matching rings 5, and the outer ring 2 on the other side is provided with evenly distributed limiting grooves 6. The matching rings 5 ​​and the limiting grooves 6 are one. The limiting groove 6 and the matching ring 5 are connected one by one and plugged into each other to ensure the strength of the outer ring 2. At the same time, the distance between the outer rings 2 can be adjusted so that the inner arc surface 24 of the outer ring 2 is suitable for the drive of the two ends of the ball 3 to realize the axial movement of the bearing. The axial force can be not at different points, so that the bearing can be used for a long time with little wear. At the same time, the parts are easy to replace without affecting its strength. The outer ring 2 between the matching ring 5 and the limiting groove 6 is penetrated by fixing holes 9. The number of fixing holes 9 on the outer rings 2 on both sides is the same and corresponds one to one. The outer rings 2 on both sides are The corresponding fixing holes 9 are all inserted with fixing pins 7. Both ends of the fixing pins 7 are fixed to the two outer rings 2 by steel nails 8. The inner arc surface 24 and the outer arc surface 25 are not coaxial. When the continuous casting machine roller is working, the inner ring 1 is subjected to force. When the continuous casting machine roller is heated and elongated, the inner ring 1 is subjected to axial force. The ball 3 of the inner ring 1 fits on the outer arc surface 25, and the ball 3 moves with the outer arc surface 25. The ball 3 is close to one side of the outer ring 2 and squeezes the outer ring 2 on one side. In this way, the inner arc surface 24 in the outer ring 2 is not in contact with the outer edge of the ball 3. They are coaxial, so the outer ring 2 will be squeezed by the ball 3 to move axially. The outer ring 2 is assembled. If the outer ring 2 on one side of the bearing is worn too much, the outer ring 2 can be disassembled and replaced by removing the fixing pin 7 and the steel nail 8. In this way, the bearing does not need to be replaced as a whole when it is worn. At the same time, when the bearing moves axially, the inner arc surface 24 cooperates with the ball 3 to effectively drive the outer ring 2, so that when the roller expansion of the continuous casting machine pushes the bearing to move axially, the axial movement and wear of the inner ring 1 and the outer ring 2 are avoided, thereby achieving good use of the bearing.

[0026] Bearing frames 4 are arranged on both sides of the gap formed between the two outer rings 2 and the inner ring 1. The bearing frames 4 evenly limit the multiple balls 3 between the outer arc surface 25 and the inner arc surface 24. The balls 3 fit the outer arc surface 25 to facilitate the rotation of the inner ring 1 and drive the balls 3 to move axially. The balls 3 are tangent to the inner arc surface 24 to facilitate the axial squeezing of the outer ring 2 and facilitate the movement of the outer ring.

[0027] The outer edge of the ball 3 and the outer arc surface 25 fit together, and both ends of the inner arc surface 24 fit together with the outer edge of the ball 3, so that when the outer ring 2 is subjected to axial force, it can move axially better.

[0028] Embodiment 2:

[0029] Reference Figure 3-Figure 4As shown, an embodiment of the present invention provides an arc surface processing device for a long arc surface roller bearing specially used for a continuous casting machine, comprising a frame 23 and a slide seat 27 slidably arranged on the top of the frame 23, characterized in that: a three-jaw chuck 10 is arranged on the side of the frame 23 away from the slide seat 27, a stabilizing rod 18 is fixedly connected to the side of the slide seat 27 close to the three-jaw chuck 10, an end of the stabilizing rod 18 away from the slide seat 27 is fixedly connected to a second top plate 17, an outer side of the second top plate 17 is hinged with a hinge plate 12, the other end of the hinge plate 12 is fixedly connected to a first top plate 13, and the first top plate 13 is close to the second top plate 17. A connecting frame 14 is fixedly connected to the middle of one side of the second top plate 17, and the other end of the connecting frame 14 is fixedly connected to a limiting sleeve 15, which is rotatably sleeved on the connecting rod 19. A grinding sheet 11 is arranged on the outer side of the hinged plate 12. When the bearing is processed, the distance between the first top plate 13 and the second top plate 17 is adjustable, so that the hinged plate 12 can be attached to the inner arc surface 24 of the outer ring 2, so as to realize precise processing of the inner arc surface 24 of the bearing, and the inner arc surface 24 can be better processed to ensure that after the inner arc surface 24 cooperates with the bearing, the bearing can have good axial force movement characteristics.

[0030] The connecting rod 19 passes through the stabilizing rod 18 , and one end of the connecting rod 19 away from the limiting sleeve 15 is fixedly connected to the output end 16 , and the output end 16 is fixedly connected to the linear motor 22 , and the linear motor 22 is fixedly connected to the outer wall of the slide 27 . The linear motor 22 drives the limiting sleeve 15 through the connecting rod 19 to pull the first top plate 13 close to the second top plate 17 .

[0031] The stabilizing rod 18 is rotatably connected in the slide 27, and the outside of the stabilizing rod 18 is fixedly connected with a first gear 20, and the first gear 20 is meshingly connected with a second gear 21, and the second gear 21 is fixedly connected to the driving end of the driving motor 26, and the driving motor 26 is fixedly connected to the top of the slide 27. The driving motor 26 drives the first gear 20 to rotate through the second gear 21, so that the stabilizing rod 18 drives the second top plate 17 to drive the hinged plate 12 to rotate, and the hinged plate 12 can drive the grinding sheet 11 to grind the inner arc surface 24. The grinding sheet 11 is sandpaper or a grinding material for bearing polishing.

[0032] The three-jaw chuck 10 clamps the outer ring 2 on one side close to the first top plate 13 . The three-jaw chuck 10 stably holds the outer ring 2 so that the outer ring 2 is efficiently polished by the polishing sheet 11 .

[0033] Embodiment three:

[0034] Reference Figure 1-Figure 5 As shown, an embodiment of the present invention provides a camber surface processing process of a long camber surface roller bearing specially used for a continuous casting machine, comprising the following steps:

[0035] Put the turned outer ring 2 into the inner side of the three-jaw chuck 10, the slide 27 slides on the frame 23, the linear motor 22 drives the limit sleeve 15 to move through the output end 16 so that the connecting rod 19, the limit sleeve 15 adjusts the distance between the first top plate 13 and the second top plate 17 through the connecting frame 14, the hinged plate 12 becomes an arc and fits on the inner arc surface 24 of the outer ring 2, the linear motor 22 drives the first gear 20 through the second gear 21, the first gear 20 drives the hinged plate 12 to rotate, and the hinged plate 12 enables the grinding sheet 11 to polish the inner arc surface 24 of the outer ring 2.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A long arc surface roller bearing for a continuous casting machine, comprising an inner ring (1), an outer ring (2) and a plurality of balls (3), characterized in that: There are two outer rings (2) in total and they are symmetrically arranged. The two outer rings (2) constitute the outer ring of the bearing. The inner sides of the two outer rings (2) are both arranged as inner arc surfaces (24). The outer side of the inner ring (1) is arranged as outer arc surfaces (25). A plurality of balls (3) are arranged between the inner arc surfaces (24) and the outer arc surfaces (25). One side of the outer ring (2) is provided with evenly distributed matching rings (5). The other side of the outer ring (2) is provided with evenly distributed limiting grooves (6). The matching rings (5) and the limiting grooves (6) are in one-to-one correspondence and are plugged into each other. The outer ring (2) between the matching rings (5) and the limiting grooves (6) is penetrated by fixing holes (9). The outer rings on both sides are provided with a plurality of fixing holes (9). The number of fixing holes (9) on the outer ring (2) is the same and corresponds to each other. The corresponding fixing holes (9) of the outer rings (2) on both sides are inserted with fixing pins (7). Both ends of the fixing pins (7) fix the two outer rings (2) to each other through steel nails (8). The inner arc surface (24) and the outer arc surface (25) are not coaxial. Bearing frames (4) are arranged on both sides of the gap formed between the two outer rings (2) and the inner ring (1). The bearing frames (4) uniformly limit the plurality of balls (3) between the inner arc surface (24) and the outer arc surface (25). The outer edges of the balls (3) and the outer arc surface (25) are in contact with each other, and the two ends of the inner arc surface (24) are in contact with the outer edges of the balls (3).

2. A camber processing device for a long camber roller bearing specially used for a continuous casting machine, comprising a frame (23) and a slide seat (27) slidably arranged on the top of the frame (23), characterized in that: A three-jaw chuck (10) is arranged on a side of the frame (23) away from the slide (27); a stabilizing rod (18) is fixedly connected to a side of the slide (27) close to the three-jaw chuck (10); an end of the stabilizing rod (18) away from the slide (27) is fixedly connected to a second top plate (17); a hinged plate (12) is hingedly connected to the outer side of the second top plate (17); the other end of the hinged plate (12) is fixedly connected to the first top plate (13); a connecting frame (14) is fixedly connected to the middle part of a side of the first top plate (13) close to the second top plate (17); the other end of the connecting frame (14) is fixedly connected to a limiting sleeve (15); the limiting sleeve (15) is rotatably sleeved on the connecting rod (19); and a grinding sheet (11) is arranged on the outer side of the hinged plate (12).

3. The arc surface processing equipment for long arc surface roller bearings for continuous casting machines according to claim 2 is characterized in that: The connecting rod (19) passes through the stabilizing rod (18); one end of the connecting rod (19) away from the limiting sleeve (15) is fixedly connected to an output end (16); the output end (16) is fixedly connected to a linear motor (22); and the linear motor (22) is fixedly connected to an outer wall of the slide seat (27).

4. The arc surface processing equipment for long arc surface roller bearings for continuous casting machines according to claim 2 is characterized in that: The stabilizing rod (18) is rotatably connected in the slide seat (27); the outside of the stabilizing rod (18) is fixedly connected to a first gear (20); the first gear (20) is meshingly connected to a second gear (21); the second gear (21) is fixedly connected to a driving end of a driving motor (26); and the driving motor (26) is fixedly connected to the top of the slide seat (27).

5. The arc surface processing equipment for long arc surface roller bearings specially used for continuous casting machines according to claim 2, characterized in that: The three-jaw chuck (10) clamps the outer ring (2) on one side close to the first top plate (13).

6. A process for processing the arc surface of a long arc surface roller bearing for a continuous casting machine, wherein the long arc surface roller bearing is the long arc surface roller bearing for a continuous casting machine described in claim 1, and the equipment used in the process for processing the arc surface is the arc surface processing equipment for the long arc surface roller bearing described in claims 2-5, characterized in that: The following steps are involved: The turned outer ring (2) is placed inside the three-jaw chuck (10), the slide seat (27) slides on the frame (23), the linear motor (22) drives the connecting rod (19) to drive the limit sleeve (15) to move through the output end (16), the limit sleeve (15) adjusts the distance between the first top plate (13) and the second top plate (17) through the connecting frame (14), the hinge plate (12) becomes an arc and fits on the inner arc surface (24) of the outer ring (2), the linear motor (22) drives the first gear (20) through the second gear (21), the first gear (20) drives the hinge plate (12) to rotate, and the hinge plate (12) causes the grinding sheet (11) to polish the inner arc surface (24) of the outer ring (2).

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