A special strip holder full of roller bearings for continuous casting machine and its processing technology and equipment

Abstract

The application provides a full-roller bearing of a special strip holder of a continuous casting machine and a machining process and equipment, and relates to the field of special bearings of continuous casting machines. The full-roller bearing of the special strip holder of the continuous casting machine comprises a bearing inner ring and a bearing outer ring, the bearing outer ring is composed of two annular rings and the two annular rings are mutually staggered and matched at the joint and riveted by a plurality of rivets, a bearing retainer is arranged between the bearing inner ring and the bearing outer ring, bearing rollers are arranged on both sides of the bearing retainer, the bearing rollers are all rollingly arranged between the bearing inner ring and the bearing outer ring, a V-shaped outwardly opening elastic holder is arranged on the outer periphery of the bearing retainer, and a raceway assembly is axially arranged on one side of the bearing outer ring close to the bearing inner ring. The bearing retainer is provided with the elastic holder, so that the bearing rollers are always close to the bearing outer ring, the accelerated wear is avoided, the raceway body is replaced and ground at the same time, the bearing can continue to be used, and the maintenance and replacement cost is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of full-roller bearing and processing technology of strip retainer special for continuous casting machine, in particular to a full-roller bearing and processing technology and equipment of strip retainer special for continuous casting machine. BACKGROUND

[0002] The continuous casting bearing is a core component of the continuous casting machine equipment, and the bearing special for the continuous casting machine is in an extreme working condition environment of high temperature and high load for a long time, and the performance directly affects the running efficiency of the continuous casting production line. The demand for the full-roller bearing of the press roller of the drawing and straightening part of the continuous casting machine is more.

[0003] The load of the continuous casting machine is large in normal times, and after long-term use of the bearing, the rolling groove is worn to cause the gap of the rolling groove to increase. At this time, if the bearing roller is not limited by the bearing retainer, the roller will be out of the retainer, and when the bearing starts to run, the vibration will occur due to the gap, and the inner rolling groove of the bearing will also be damaged. At the same time, the rolling ball will also be deformed due to the sudden impact of the retainer, which shortens the service life of the bearing. At this time, if the bearing roller is limited by the retainer, the bearing ring will suddenly rotate, and because of the gap, the bearing ring will rotate the roller to accelerate the collision with the outer ring of the bearing, which will accelerate the wear of the outer ring of the bearing.

[0004] The continuous casting roller of the drawing part is under high load for a long time, and the continuous casting roller will expand under the condition of high load and heat. At the same time, the radial load of the continuous casting roller causes it to slightly bend. When the bent continuous casting roller rotates, one side of the two ends will be under high load stress, so that the full-roller is under radial load and the axial stress is mainly concentrated on one side of the bearing close to the continuous casting roller. Therefore, the wear degree of one side of the bearing at the two ends is more serious than that of the other side during operation. However, during wear, the wear of one side of the outer ring of the bearing is more serious because of direct pressure. The serious wear of one side of the bearing affects the production efficiency of the continuous casting machine and even the product efficiency. The full-roller bearing of the continuous casting machine is expensive, and the production is affected after the bearing is worn, so it needs to be replaced, which has high cost. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a full-roller bearing and processing technology and equipment of strip retainer special for continuous casting machine, which solves the problems of bearing wear and high replacement cost of the bearing.

[0006] In order to achieve the above object, the present application is implemented by the following technical scheme: a processing equipment for a full-roller bearing of a special strip holder of a continuous casting machine, the full-roller bearing of the special strip holder of the continuous casting machine comprises a bearing inner ring and a bearing outer ring, the bearing outer ring is composed of two annular rings and the two annular rings are mutually staggered and matched at the joint and riveted by a plurality of rivets, a bearing retainer is arranged between the bearing inner ring and the bearing outer ring, bearing rollers are arranged on both sides of the bearing retainer, the bearing rollers are all rollingly arranged between the bearing inner ring and the bearing outer ring, a V-shaped outward opening elastic frame is arranged on the outer periphery of the bearing retainer, a raceway assembly is axially arranged on one side of the bearing outer ring close to the bearing inner ring, two oil injection holes are radially arranged on the bearing outer ring, the raceway assembly is composed of two circular raceway bodies, the two raceway bodies are symmetrically arranged inside the bearing outer ring, the joint of the two raceway bodies is arranged in a staggered manner, mounting portions are arranged on the outer sides of the two raceway bodies and embedded in the bearing outer ring, the mounting portions are fixed on the bearing outer ring by evenly distributed screws on the outer sides of the mounting portions, the screws and the rivets are alternately distributed, and the processing equipment for the full-roller bearing of the special strip holder of the continuous casting machine comprises:

[0007] A base, a positioning and clamping mechanism for fixing the bearing outer ring is arranged in the middle of the upper surface of the base, a transverse driving mechanism is installed on the top of the base, a longitudinal driving mechanism is installed on the top of the transverse driving mechanism, and a raceway repairing mechanism for repairing the raceway body inside the bearing outer ring is installed on the upper part of the longitudinal driving mechanism;

[0008] The raceway repairing mechanism comprises a limiting arm, a limiting pin shaft and a repairing arm arranged coaxially, one end of the limiting arm and the limiting pin shaft are fixed to each other, the end of the limiting pin shaft away from the limiting arm is slidably inserted into one end of the repairing arm, a support is perpendicularly fixed to the outer side of the end of the limiting arm close to the repairing arm, a limiting ball is rotatably connected to the end of the support, a mounting bracket is perpendicularly fixed to the outer side of the end of the repairing arm close to the limiting arm, the mounting bracket is in the same height as the support, the mounting bracket is used for mounting abrasive for polishing the inner side of the raceway body, and the end of the repairing arm away from the limiting pin shaft is connected to the driving end of a second motor through a belt pulley.

[0009] The trajectories of the abrasive on the mounting bracket and the limiting ball rotating on the outer side are circles with the same coaxial center and radius, when the repairing arm polishes the newly installed raceway body through the abrasive on the mounting bracket, the limiting arm slides on the inner edge of the un-replaced raceway body in the bearing outer ring through the support and the limiting ball, and at this time, the inner edge of the newly installed raceway body is the same as the inner edge of the un-damaged raceway body.

[0010] Preferably, the transverse driving mechanism comprises slide rails symmetrically arranged on the top of the base and mounting seats vertically arranged on both ends of the slide rails, the inner sides of both ends of the slide rails are slidably provided with sliding blocks, the sliding blocks on both ends are respectively arranged on the bottom of the mounting seats, and the upper portion of the mounting seat is a U-shaped opening upward.

[0011] Preferably, the inner sides of the slide rails are rotatably connected with double-headed screws, the two ends of each double-headed screw are respectively threadedly connected with the sliding blocks on both sides of the slide rails, the threads on the two ends of the double-headed screw are opposite in rotation direction, one end of each double-headed screw is fixedly connected with a first motor, and the first motor is arranged on the end of the slide rail.

[0012] Preferably, the longitudinal driving mechanism comprises two lifting platforms, the two sides of each lifting platform are provided with sliding grooves for limiting sliding with the mounting seats, the inner top sides of each lifting platform are symmetrically provided with a group of threaded sleeves, the lower portions of each group of threaded sleeves are threadedly connected with threaded rods, the lower portions of each group of threaded rods are fixedly connected with third motors, the third motors are correspondingly arranged on the mounting seats on the bottom of the lifting platform, the ends away from the limiting arms and the repairing arms of the lifting platforms are rotatably arranged on the lifting platforms, and the second motor is arranged on the outer wall of one side of the lifting platform.

[0013] Preferably, the positioning and clamping mechanism comprises a clamping seat, the clamping seat is arranged on the top of the base, the clamping seat is arranged between the two lifting platforms, the top of the clamping seat is provided with a fixed groove, the two sides of the clamping seat are symmetrically and movably provided with clamping jaws matched with the fixed groove, the bottom of the clamping seat is provided with a limiting sleeve, the limiting sleeve is slidably provided with a limiting shaft, the bottom end of the limiting shaft is provided with a spring, the spring is arranged in the limiting sleeve, the top end of the limiting shaft is fixedly connected with a clamping plate, the four corners of the clamping plate are provided with linkage blocks, the lower portions of the clamping jaws extend to the inner sides of the linkage blocks at both ends of the clamping plate, and the lower portions of the two sides of the clamping jaws are provided with limiting columns for limiting the linkage blocks.

[0014] Preferably, a rotating shaft is rotatably arranged in the clamping seat, an eccentric wheel for extruding the clamping plate is arranged on the middle portion of the rotating shaft, one end of the rotating shaft penetrates through the clamping seat and is fixedly connected with a worm wheel, the worm wheel is meshingly connected with a worm, the worm is arranged on the outer wall of the clamping seat through a bearing seat, and the end portion of the worm is provided with a hand wheel.

[0015] Preferably, a processing technology of a continuous casting machine special belt holder full roller bearing comprises the following steps:

[0016] Step one, bearing disassembly and assembly:

[0017] After the strip retainer full roller bearing of the continuous casting roll at both ends of the breakout straightening section of the continuous casting machine equipment is disassembled, the rivet is removed, the two rings of the bearing outer ring are separated, the severely worn raceway body is disassembled from the bearing outer ring, a new raceway body is installed on the bearing outer ring by screwing and connecting with the installation part, then the two rings are staggered and engaged and riveted into an integrated bearing outer ring of the repaired raceway;

[0018] Step two, bearing outer ring of the repaired raceway is fixed:

[0019] The bearing outer ring of the repaired raceway in step one is placed on the positioning and clamping mechanism. When clamping, the bearing outer ring of the repaired raceway is placed in the fixed groove. The worm is driven by the hand wheel to drive the worm gear to rotate the shaft, the shaft drives the eccentric wheel to rotate to extrude the clamping plate to move downward, and the clamping plate on both sides of the linkage block drives the clamping jaw to fix the bearing outer ring of the repaired raceway downward through the limiting column.

[0020] Step three, raceway repair:

[0021] The abrasive is installed on the installation frame of the raceway repair mechanism, then the transverse driving mechanism and the longitudinal driving mechanism work cooperatively to make the raceway repair mechanism grind the newly installed raceway body inside the bearing outer ring. When grinding, the second motor drives the repair arm through the belt pulley, the repair arm and the limiting arm rotate synchronously, the repair arm and the limiting arm are cooperated on the same axis through the limiting pin shaft, the installation frame and the support are on the same side and parallel, and the trajectory of the abrasive on the installation frame and the limiting ball outside rotating is a circle with the same coaxial and radius center. When the repair arm grinds the newly installed raceway body through the abrasive on the installation frame, the limiting arm slides through the support and the limiting ball inside the inner edge of the un-replaced raceway body in the bearing outer ring. At this time, the inner edge of the newly installed raceway body is the same as the inner edge of the undamaged raceway body. Then, the fine grinding end is installed on the installation frame, and the raceway repair mechanism is repeated to realize the finishing of the raceway body. Then, the bearing inner ring, bearing roller and bearing retainer are assembled into the continuous casting machine special strip retainer full roller bearing to continue the assembly and use at both ends of the continuous casting roll of the continuous casting machine.

[0022] Preferably, when the transverse driving mechanism works, the first motor moves the sliding block in the sliding rail in the same direction or opposite direction through the double-headed screw rod to realize the movement of the limiting arm and the repair arm close to or away from each other.

[0023] When the longitudinal driving mechanism works, the third motor moves the threaded sleeve up and down through the threaded rod to realize the up and down sliding of the lifting platform on the mounting seat through the sliding groove, and realizes the up and down movement of the limiting arm and the repair arm.

[0024] The transverse driving mechanism and the longitudinal driving mechanism make the spherical point farthest from the support of the limiting ball always tangent to the inner edge of the undamaged raceway body.

[0025] The application provides a full roller bearing of a special strip retainer of a continuous casting machine, a processing technology and equipment.

[0026] When the full roller bearing of the special strip retainer of the continuous casting machine is used, the elastic frame extrudes the bearing retainer on both sides, the bearing retainer limits the bearing rollers, the bearing rollers are always tightly attached to the bearing inner ring outward, when the bearing inner ring is worn, the bearing rollers are still tightly attached to the bearing ring, when the bearing rotates, no rotating gap appears, the bearing rollers and the bearing ring are prevented from colliding for a short time to accelerate wear, and the service life of the bearing is prolonged.

[0027] The bearing is disassembled, then is driven by a transverse driving mechanism and a longitudinal driving mechanism, the positioning and clamping mechanism and the raceway repairing mechanism are cooperated, the inner edge of the raceway body is repaired, the abrasive is installed on the mounting frame of the raceway repairing mechanism during the repairing, then the transverse driving mechanism and the longitudinal driving mechanism are cooperated to work, so that the raceway repairing mechanism polishes the newly-installed raceway body on the inner side of the bearing outer ring, the second motor drives the repairing arm through the belt pulley during the polishing, the repairing arm and the limiting arm rotate synchronously, the limiting arm slides at the inner edge of the un-replaced raceway body in the bearing outer ring through the support and the limiting ball, at the moment, the inner edge of the newly-installed raceway body is the same as that of the un-damaged raceway body, then the bearing inner ring, the bearing roller and the bearing retainer are assembled into the full roller bearing of the special strip retainer of the continuous casting machine, and the full roller bearing is continuously assembled and used at both ends of the continuous casting roller of the continuous casting machine, the setting can ensure that the raceway body damaged by wear can be replaced when the bearing for the continuous casting roller is damaged, then the raceway body is repaired, the newly-replaced raceway body can immediately adapt to the existing bearing roller, the whole bearing does not need to be replaced, the raceway body is directly used after the repairing, the maintenance cost is low, the undamaged components of the bearing are continuously used, the cost is low, and the operation cost of the continuous casting machine is saved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a radial section view of the full roller bearing of the special strip retainer of the continuous casting machine of the application;

[0029] Figure 2 It is a partial cross-sectional view of the full roller bearing of the special strip retainer of the continuous casting machine of the application;

[0030] Figure 3 It is a schematic view of the assembly stress direction of the full roller bearing of the special strip retainer of the continuous casting machine and the continuous casting roller of the continuous casting machine of the application;

[0031] Figure 4 It is a radial section view of the side of the bearing outer ring of the full roller bearing of the special strip retainer of the continuous casting machine of the application that is accelerated to wear;

[0032] Figure 5 It is a radial section view of the bearing outer ring of the full roller bearing of the special strip retainer of the continuous casting machine of the application after the raceway body is replaced.

[0033] Figure 6 A perspective view of a processing apparatus for a full-roller bearing of a strip holder for a continuous casting machine according to the present invention;

[0034] Figure 7 An internal structure view of a transverse driving mechanism of the processing apparatus for the full-roller bearing of the strip holder for the continuous casting machine according to the present invention;

[0035] Figure 8 An internal structure view of a lifting table of the processing apparatus for the full-roller bearing of the strip holder for the continuous casting machine according to the present invention;

[0036] Figure 9 An enlarged view of the middle A; Figure 8

[0037] Figure 10 A perspective view of a raceway repairing mechanism of the processing apparatus for the full-roller bearing of the strip holder for the continuous casting machine according to the present invention;

[0038] Figure 11 A perspective view of a positioning and clamping mechanism of the processing apparatus for the full-roller bearing of the strip holder for the continuous casting machine according to the present invention; Figure 1

[0039] Figure 12 A perspective view of a positioning and clamping mechanism of the processing apparatus for the full-roller bearing of the strip holder for the continuous casting machine according to the present invention; Figure 2

[0040] Figure 13 An internal structure view of a clamping member seat of the processing apparatus for the full-roller bearing of the strip holder for the continuous casting machine according to the present invention;

[0041] Figure 14 An installation structure view of a clamping jaw and a clamping plate of the processing apparatus for the full-roller bearing of the strip holder for the continuous casting machine according to the present invention.

[0042] ​​​Wherein, 1, bearing inner ring; 2, bearing outer ring; 201, rivet; 3, bearing retainer; 4, bearing roller; 5, screw; 6, mounting portion; 7, raceway body; 8, elastic frame; 9, oil injection hole; 10, base; 11, first motor; 12, slide rail; 13, sliding block; 14, mounting seat; 15, lifting platform; 16, pulley; 17, second motor; 18, clamping jaw; 19, positioning and clamping mechanism; 20, transverse driving mechanism; 21, longitudinal driving mechanism; 22, double-end screw; 23, sliding chute; 24, threaded sleeve; 25, threaded rod; 26, third motor; 27, raceway repair mechanism; 28, support; 29, limiting ball; 30, limiting pin shaft; 31, mounting frame; 32, limiting arm; 33, limiting column; 34, repair arm; 35, worm gear; 36, clamping piece seat; 37, rotating shaft; 38, eccentric wheel; 39, limiting sleeve; 40, spring; 41, limiting shaft; 42, clamping plate; 43, worm; 44, hand wheel; 45, fixed slot. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0044] Embodiment one:

[0045] With reference to Figures 1-2 , 4, 5, the present application provides a special strip retainer full roller bearing for continuous casting machine, comprising:

[0046] The bearing inner ring 1 and the bearing outer ring 2, the bearing outer ring 2 is composed of two annular rings and the two annular rings are mutually staggered and matched at the joint and riveted by a plurality of rivets 201, the mutual staggered engagement insertion can ensure the strength of the bearing outer ring 2, the rivets 201 rivet the two annular rings into the bearing outer ring 2, and the bearing outer ring has good strength, the bearing inner ring 1 and the bearing outer ring 2 are provided with the bearing retainer 3, both sides of the bearing retainer 3 are provided with the bearing roller 4, the bearing roller 4 can be rotatably connected with the bearing retainer 3 and will not fall off, the bearing roller 4 is rotatably arranged between the bearing inner ring 1 and the bearing outer ring 2, the bearing retainer 3 is provided with the V-shaped outward opening elastic frame 8 at the outer periphery, the elastic frame 8 extrudes the bearing retainer 3 outward all the time, the bearing retainer 3 makes the bearing roller always contact the bearing ring, avoids the impact to cause accelerated wear, the bearing outer ring 2 is axially provided with a raceway assembly on the side close to the bearing inner ring 1, and two oil injection holes 9 are radially arranged on the bearing outer ring 2. The raceway assembly is composed of two circular raceway bodies 7, the two raceway bodies 7 are symmetrically arranged on the inner side of the bearing outer ring 2, and the joint of the two raceway bodies 7 is arranged in a staggered manner. The staggered matching realizes high-strength pressure bearing of the bearing and will not be damaged, the combined raceway body 7 realizes quick replacement, and the whole bearing does not need to be replaced because of local damage, the installation part 6 is embedded in the bearing outer ring 2 on the outer side of the two raceway bodies 7, the installation part 6 is fixed on the bearing outer ring 2 through the evenly distributed screws 5 on the outer side, the screws 5 and the installation part 6 are mutually fixed, the raceway body 7 is fixed on the bearing outer ring 2, the screws 5 and the rivets 201 are alternately distributed, convenient for installation, the elastic frame 8 extrudes the bearing retainers 3 on both sides, the bearing roller 4 is limited by the bearing retainer, and the bearing roller 4 can always tightly contact the bearing inner ring 1 outward, when the bearing inner ring 1 is worn, the bearing roller 4 is still tightly attached to the bearing ring, and when the bearing rotates, no rotating gap occurs, avoiding the bearing roller 4 and the bearing ring from colliding and accelerating wear in a short time, and prolonging the service life of the bearing.

[0047] Embodiment two:

[0048] Referring to Figures 1-14 The embodiment of the application provides a processing equipment for a full-roller bearing of a strip retainer special for a continuous casting machine, the full-roller bearing of the strip retainer special for the continuous casting machine is the bearing described above, and the full-roller bearing of the strip retainer special for the continuous casting machine comprises:

[0049] The base 10 is provided with a positioning and clamping mechanism 19 for fixing the bearing outer ring 2 on the upper surface of the middle part of the base 10, the transverse driving mechanism 20 is installed on the top of the base 10, the longitudinal driving mechanism 21 is installed on the top of the transverse driving mechanism 20, the raceway repairing mechanism 27 for repairing the raceway body 7 on the inner side of the bearing outer ring 2 is installed on the upper part of the longitudinal driving mechanism 21, the transverse driving mechanism 20 and the longitudinal driving mechanism 21 are matched with each other, the first motor 11 and the third motor 26 are controlled by the single-chip microcomputer programming, so that the matching is better, and the repairing arm 34 is driven to move in a circle along the circumference of the bearing outer ring 2 by the installation frame 31;

[0050] The raceway repairing mechanism 27 comprises a limiting arm 32, a limiting pin shaft 30 and a repairing arm 34 arranged coaxially, one end of the limiting arm 32 is fixed with the limiting pin shaft 30 to rotate synchronously and approach and move away synchronously, the other end of the limiting pin shaft 30 is inserted into one end of the repairing arm 34, a support 28 is vertically fixed outside the end of the limiting arm 32 close to the repairing arm 34, the end of the support 28 is rotatably connected with a limiting ball 29, the limiting ball 29 is used to limit the grinding material on the mounting frame 31, so that the grinding material can repair the raceway body 7 to be undamaged when grinding the inner ring of the bearing, the mounting frame 31 is vertically fixed outside the end of the repairing arm 34 close to the limiting arm 32, the mounting frame 31 is in the same height with the support 28, the mounting frame 31 is used to install the grinding material for grinding the inner side of the raceway body 7, the other end of the repairing arm 34 is connected with the driving end of the second motor 17 through the belt pulley 16, the grinding material is installed with the bearing finishing polishing end on the mounting frame 31 after grinding the raceway body 7, so that the raceway body 7 is finished and grinded, and can be rolled by the bearing roller 4 for a long time.

[0051] The transverse driving mechanism 20 comprises the slide rails 12 symmetrically arranged on the top of the base 10 and the mounting seats 14 vertically arranged on the two ends of the slide rails 12, the slide blocks 13 are slidably arranged inside the two ends of the slide rails 12, the slide blocks 13 inside the two ends are respectively installed on the bottom of the mounting seats 14, the upper part of the mounting seat 14 is a U-shaped opening upward, which is convenient for cooperating with the lifting platform 15 to lift and limit, the double-head screws 22 are rotatably connected inside the slide rails 12, the two ends of each double-head screw 22 are respectively threadedly connected with the slide blocks 13 on the two sides inside the slide rails 12, the thread directions of the two ends of the double-head screw 22 are opposite, one end of each double-head screw 22 is fixed with the first motor 11, the first motor 11 is installed on the end of the slide rail 12, the first motor 11 drives the slide blocks 13 to slide in the slide rails 12 through the double-head screws 22, the slide blocks 13 drive the corresponding mounting seats 14 to approach and move away from each other, so that the repairing arm 34 and the limiting arm 32 approach and move away from each other.

[0052] The longitudinal driving mechanism 21 comprises two lifting platforms 15, the slide grooves 23 for limiting sliding with the mounting seats 14 are arranged on the two sides of each lifting platform 15, a group of threaded sleeves 24 are symmetrically arranged on the inner top of each lifting platform 15, the threaded rods 25 are threadedly connected with the lower part of each group of threaded sleeves 24, the third motors 26 are fixed with the lower part of each group of threaded rods 25, the third motors 26 are correspondingly installed on the mounting seats 14 on the bottom of the lifting platform 15, the ends of the limiting arm 32 and the repairing arm 34 away from each other are rotatably arranged on the lifting platform 15, the second motor 17 is installed on the outer wall of one side of the lifting platform 15, the third motor 26 drives the threaded sleeves 24 through the threaded rods 25 to drive the lifting platform 15 to ascend and descend, so that the driving is realized.

[0053] The positioning and clamping mechanism 19 includes a clamping seat 36, which is located on the top of the base 10 and between the two lifting platforms 15. A fixing groove 45 is provided on the top of the clamping seat 36. Clamping jaws 18, which cooperate with the fixing groove 45 to fix the outer ring 2 of the bearing, are symmetrically and movably arranged on both sides of the clamping seat 36. A limit sleeve 39 is provided at the bottom of the clamping seat 36, and a limit shaft 41 is slidably arranged inside the limit sleeve 39. A spring 40 is provided at the bottom end of the limit shaft 41 and is located inside the limit sleeve 39. A locking plate 42 is fixed at the top of the limit shaft 41, and linkage blocks are provided at each of the four corners of the locking plate 42. A rotating shaft 37 rotates within the clamping seat 36, and an eccentric wheel for pressing the locking plate 42 is provided in the middle of the rotating shaft 37. 38. One end of the rotating shaft 37 passes through the clamping seat 36 and is fixedly connected to a worm gear 35. The worm gear 35 is meshed with a worm 43. The worm 43 is installed on the outer wall of the clamping seat 36 through a bearing seat. A handwheel 44 is installed at the end of the worm 43. The lower part of the gripper 18 extends to the inner side of the linkage blocks at both ends of the locking plate 42. The lower parts of both sides of the gripper 18 are provided with limiting posts 33 for limiting the linkage blocks. When the outer ring 2 of the bearing is released, the worm 43 drives the worm gear 35 to rotate the rotating shaft 37 through the handwheel 44, so that the eccentric wheel 38 is disengaged from the locking plate 42. The locking plate 42 can be lifted by the spring 40 so that the limiting shaft 41 moves upward in the limiting sleeve 39, so that the locking plate 42 releases the gripper 18 through the limiting posts 33 and releases the outer ring 2 of the bearing.

[0054] Example 3:

[0055] Reference Figures 1-14 As shown in the figure, this embodiment of the invention provides a machining process for a full roll bearing with a retainer specifically for continuous casting machines. The full roll bearing with a retainer specifically for continuous casting machines is the bearing described above, and the machining process for this bearing uses the equipment described above, including the following steps:

[0056] like Figure 3 and Figure 4 As can be seen from the background section, when the bearing outer ring 2 is subjected to force on one side, the heavy-load area of ​​the bearing outer ring 2 will experience significant pressure. Therefore, compared to other parts of the bearing, this area will experience accelerated wear. Thus, the design incorporates two raceway bodies 7, with the contact point of the raceway bodies 7 located in the middle of the bearing cage 3. This area is not affected by the rolling motion of the bearing rollers 4, thus preventing gaps from causing problems. Figure 5 As can be seen, after replacing raceway 7, there is a height difference between the new raceway and the unremoved raceway 7. This height difference will cause the bearing roller 4 to tilt, resulting in uneven bearing force. Therefore, the new raceway 7 is ground to have the same inner edge as the undamaged raceway 7. In this way, only a part of the bearing needs to be replaced, and the bearing can continue to be used. This achieves the goal of not replacing the bearing body and most of the parts, and greatly reduces the later maintenance cost of the bearing.

[0057] In the actual use of the bearing, the thickness of the raceway body 7 can be directly machined according to the wear degree of the raceway body 7 in the bearing, and the undamaged raceway body 7 can be directly matched, so that the use cost of the bearing is further reduced, and the maintenance cost is lower.

[0058] Step one, bearing disassembly

[0059] After the strip retainer full roller bearing at both ends of the continuous casting roll of the drawing and straightening part of the continuous casting machine equipment is disassembled, the rivet 201 is removed, the two annular rings of the bearing outer ring 2 are separated, the raceway body 7 on the side with serious wear is disassembled from the bearing outer ring 2, a new raceway body 7 is connected and installed on the bearing outer ring 2 by the screw 5 and the mounting part 6, and then the two annular rings are staggered and engaged and riveted into an integrated bearing outer ring 2 with the raceway to be repaired;

[0060] Step two, fixing the bearing outer ring with the raceway to be repaired

[0061] The bearing outer ring 2 with the raceway to be repaired in step one is placed on the positioning and clamping mechanism 19. When clamping, the bearing outer ring 2 with the raceway to be repaired is placed in the fixed groove 45. The worm 43 is rotated by the hand wheel 44 to drive the worm gear 35 to rotate the rotating shaft 37, the rotating shaft 37 drives the eccentric wheel 38 to rotate to extrude the clamping plate 42 to move downward, the linkage blocks on both sides of the clamping plate 42 drive the clamping jaws 18 to fix the bearing outer ring 2 with the raceway to be repaired downward through the limiting column 33.

[0062] Step three, raceway repair

[0063] The abrasive is installed on the mounting frame 31 of the raceway repairing mechanism 27, and then the transverse driving mechanism 20 and the longitudinal driving mechanism 21 work in cooperation. When the transverse driving mechanism 20 works, the first motor 11 drives the slider 13 in the slide rail 12 to move in the same direction or in the opposite direction through the double-headed screw rod 22, so as to realize the movement of the limiting arm 32 and the repairing arm 34 in the same direction or in the opposite direction. When the longitudinal driving mechanism 21 works, the third motor 26 drives the threaded sleeve 24 to move up and down through the threaded rod 25, so as to realize the up-and-down movement of the lifting platform 15 on the mounting base 14 through the sliding groove 23, and realize the up-and-down movement of the limiting arm 32 and the repairing arm 34. The transverse driving mechanism 20 and the longitudinal driving mechanism 21 make the farthest point of the limiting ball 29 from the spherical surface of the support 28 always tangent to the inner edge of the undamaged raceway body 7, so as to realize the grinding of the newly installed raceway body 7 on the inner side of the bearing outer ring 2 by the raceway repairing mechanism 27. When grinding, the second motor 17 drives the repairing arm 34 through the belt pulley 16, and the repairing arm 34 and the limiting arm 32 rotate synchronously. The repairing arm 34 and the limiting arm 32 are cooperated on the same axis through the limiting pin shaft 30. The mounting frame 31 and the support 28 are on the same side and parallel, and the trajectories of the abrasive on the mounting frame 31 and the outer side of the limiting ball 29 are on the coaxial and same-radius circles. When the repairing arm 34 grinds the newly installed raceway body 7 through the abrasive on the mounting frame 31, the limiting arm 32 slides on the inner edge of the raceway body 7 which is not replaced in the bearing outer ring 2 through the support 28 and the limiting ball 29. At this time, the inner edge of the newly installed raceway body 7 is the same as the inner edge of the undamaged raceway body 7. Then, the fine grinding end is installed on the mounting frame 31, and the raceway repairing mechanism 27 is repeated to realize the fine grinding of the raceway body 7. Then, the bearing inner ring 1, the bearing roller 4 and the bearing retainer 3 are assembled into the full-roller bearing with the special belt retainer of the continuous casting machine, and the full-roller bearing is continued to be assembled and used at the two ends of the continuous casting roller of the continuous casting machine.

[0064] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A processing equipment for a full roll bearing with a retainer for a continuous casting machine, the full roll bearing with a retainer for a continuous casting machine includes an inner ring (1) and an outer ring (2), the outer ring (2) is composed of two rings and the two rings are interlocked and riveted together by multiple rivets (201), a bearing cage (3) is provided between the inner ring (1) and the outer ring (2), bearing rollers (4) are provided on both sides of the bearing cage (3), the bearing rollers (4) are rolled between the inner ring (1) and the outer ring (2), and a V-shaped outward-opening elastic frame ( ) is provided on the outer periphery of the bearing cage (3). 8) A raceway assembly is axially arranged on the side of the bearing outer ring (2) near the bearing inner ring (1). Two oil injection holes (9) are radially arranged on the bearing outer ring (2). The raceway assembly consists of two circular raceway bodies (7). The two raceway bodies (7) are symmetrically arranged on the inner side of the bearing outer ring (2). The two raceway bodies (7) are staggered at the joint. The outer sides of the two raceway bodies (7) are provided with mounting parts (6) that fit into the bearing outer ring (2). The outer sides of the mounting parts (6) are fixed to the bearing outer ring (2) by evenly distributed screws (5). The screws (5) and rivets (201) are alternately distributed. The characteristic is that: The machining equipment for the special full roll bearing with retainer for continuous casting machines includes: The base (10) has a positioning clamping mechanism (19) for fixing the outer ring (2) of the bearing provided in the middle of the upper surface of the base (10), a transverse drive mechanism (20) is installed on the top of the base (10), a longitudinal drive mechanism (21) is installed on the top of the transverse drive mechanism (20), and a raceway repair mechanism (27) for repairing the inner raceway body (7) of the outer ring (2) of the bearing is installed on the upper part of the longitudinal drive mechanism (21). The raceway repair mechanism (27) includes a limiting arm (32), a limiting pin (30), and a repair arm (34) arranged coaxially. One end of the limiting arm (32) and the limiting pin (30) are fixed to each other. The end of the limiting pin (30) away from the limiting arm (32) is slidably inserted into one end of the repair arm (34). A bracket (28) is vertically fixed on the outer side of the end of the limiting arm (32) near the repair arm (34). The end of the bracket (28) is rotatably connected to a limiting ball (29). A mounting frame (31) is vertically fixed on the outer side of the end of the repair arm (34) near the limiting arm (32). The mounting frame (31) and the bracket (28) are at the same height. The mounting frame (31) is used to install abrasive for grinding the inner side of the raceway body (7). The end of the repair arm (34) away from the limiting pin (30) is connected to the drive end of the second motor (17) through a pulley (16). The trajectory of the abrasive on the mounting bracket (31) and the outer side of the limiting ball (29) is a circle with the center on the same axis and the same radius. When the repair arm (34) grinds the newly installed raceway body (7) with the abrasive on the mounting bracket (31), the limiting arm (32) slides on the inner edge of the unreplaced raceway body (7) in the outer ring (2) of the bearing through the bracket (28) and the limiting ball (29). At this time, the inner edge of the newly installed raceway body (7) is the same as the inner edge of the undamaged raceway body (7).

2. The processing equipment for a full roll bearing with retainer specifically for a continuous casting machine according to claim 1, characterized in that: The transverse drive mechanism (20) includes a slide rail (12) symmetrically arranged on the top of the base (10) and mounting seats (14) symmetrically perpendicular to both ends of the slide rail (12). Slider (13) slides on the inner side of both ends of the slide rail (12). The slider (13) on the inner side of both ends is mounted on the bottom of the mounting seat (14). The upper part of the mounting seat (14) is a U-shape with an upward opening.

3. The processing equipment for a full roll bearing with retainer specifically for a continuous casting machine according to claim 2, characterized in that: The slide rail (12) is rotatably connected to a double-headed screw (22). The two ends of each double-headed screw (22) are threadedly connected to the sliders (13) on both sides of the slide rail (12). The threads at the two ends of the double-headed screw (22) are opposite in direction. A first motor (11) is fixed to one end of each double-headed screw (22). The first motor (11) is installed at the end of the slide rail (12).

4. The processing equipment for a full roll bearing with retainer specifically for a continuous casting machine according to claim 3, characterized in that: The longitudinal drive mechanism (21) includes two lifting platforms (15). Each lifting platform (15) has a sliding groove (23) on both sides for limiting and sliding with the mounting base (14). Each lifting platform (15) has a set of threaded sleeves (24) symmetrically arranged on both sides of the inner top. Each set of threaded sleeves (24) has a threaded rod (25) threadedly connected to the lower part of each set of threaded sleeves (24). Each set of threaded rods (25) has a third motor (26) fixed to the lower part of each set of threaded rods (25). The third motor (26) is installed on the mounting base (14) at the bottom of the lifting platform (15). The ends of the limiting arm (32) and the repair arm (34) that are far apart rotate on the lifting platform (15). The second motor (17) is installed on the outer wall of one side of the lifting platform (15).

5. The processing equipment for a full roll bearing with retainer specifically for a continuous casting machine according to claim 4, characterized in that: The positioning and clamping mechanism (19) includes a clamping seat (36), which is located on the top of the base (10) and between the two lifting platforms (15). A fixing groove (45) is provided on the top of the clamping seat (36). Both sides of the clamping seat (36) are symmetrically and movably equipped with clamping claws (18) that cooperate with the fixing groove (45) to fix the outer ring (2) of the bearing. A limit sleeve (39) is provided at the bottom of the clamping seat (36). A limiting shaft (41) is slidably provided inside the limiting sleeve (39). A spring (40) is provided at the bottom end of the limiting shaft (41). The spring (40) is provided inside the limiting sleeve (39). A locking plate (42) is fixed at the top end of the limiting shaft (41). A linkage block is provided at each of the four corners of the locking plate (42). The lower part of the gripper (18) extends to the inner side of the linkage block at both ends of the locking plate (42). A limiting post (33) for limiting the linkage block is provided at the lower part of both sides of the gripper (18).

6. The processing equipment for a continuous casting machine-specific full roll bearing with retainer according to claim 5, characterized in that: The clamping seat (36) has a rotating shaft (37) inside. The shaft (37) has an eccentric wheel (38) in the middle for pressing the clamping plate (42). One end of the shaft (37) passes through the clamping seat (36) and is fixedly connected to a worm gear (35). The worm gear (35) is meshed with a worm (43). The worm (43) is installed on the outer wall of the clamping seat (36) through a bearing seat. A handwheel (44) is installed at the end of the worm (43).

7. A machining process for a full roll bearing with a retainer specifically for continuous casting machines, wherein the machining process for the full roll bearing with a retainer specifically for continuous casting machines uses the machining equipment described in claim 6, characterized in that: Includes the following steps: Step 1: Bearing disassembly and assembly: After removing the full roller bearings with retainers from both ends of the continuous casting rolls of the straightening section of the continuous casting machine, remove the rivets (201) to separate the two rings of the outer ring (2) of the bearing. Remove the raceway body (7) on the severely worn side from the outer ring (2) of the bearing. Connect the new raceway body (7) to the outer ring (2) of the bearing with screws (5) and mounting part (6). Then, interlock the two rings and rivet them together with rivets (201) to form the outer ring (2) of the bearing with the raceway to be repaired. Step 2: Fixing the outer ring of the bearing whose raceway needs repair: Place the outer ring (2) of the bearing raceway to be repaired in step one on the positioning clamping mechanism (19). When clamping, place the outer ring (2) of the bearing raceway to be repaired in the fixed groove (45). Rotate the worm gear (43) through the handwheel (44) to drive the worm wheel (35) to drive the rotating shaft (37) to rotate. The rotating shaft (37) drives the eccentric wheel (38) to rotate, thereby squeezing the clamping plate (42) to move downward. The linkage blocks on both sides of the clamping plate (42) drive the clamping claw (18) to fix the outer ring (2) of the bearing raceway to be repaired downward through the limiting column (33). Step 3: Raceway Repair Abrasive is installed on the mounting bracket (31) of the raceway repair mechanism (27). Then, the transverse drive mechanism (20) and the longitudinal drive mechanism (21) work together to make the raceway repair mechanism (27) grind the newly installed raceway body (7) on the inner side of the bearing outer ring (2). During grinding, the second motor (17) drives the repair arm (34) through the pulley (16). The repair arm (34) and the limiting arm (32) rotate synchronously. The repair arm (34) and the limiting arm (32) are connected on the same axis through the limiting pin (30). The mounting bracket (31) and the bracket (28) are on the same side and parallel. The rotation trajectory of the abrasive on the mounting bracket (31) and the outer side of the limiting ball (29) is a circle with its center on the same axis. On a circle of the same radius, when the repair arm (34) grinds the newly installed raceway body (7) with the abrasive on the mounting frame (31), the limiting arm (32) slides on the inner edge of the unreplaced raceway body (7) in the outer ring (2) of the bearing through the bracket (28) and the limiting ball (29). At this time, the inner edge of the newly installed raceway body (7) is the same as the inner edge of the undamaged raceway body (7). Then, the fine grinding end is installed on the mounting frame (31), and the raceway repair mechanism (27) is repeated to achieve the fine machining of the raceway body (7). Then, the bearing inner ring (1), bearing roller (4) and bearing cage (3) are assembled into a full roller bearing with a retainer for continuous casting machine and continue to be assembled and used at both ends of the continuous casting roll of the continuous casting machine.

8. The processing technology of a full roll bearing with retainer for continuous casting machines according to claim 7, characterized in that: When the transverse drive mechanism (20) is working, the first motor (11) causes the slider (13) in the slide rail (12) to move in the same direction or in opposite directions through the double-headed screw (22), so that the limiting arm (32) and the repair arm (34) can move close to or away from each other; When the longitudinal drive mechanism (21) is working, the third motor (26) moves the threaded sleeve (24) up and down through the threaded rod (25) to realize that the lifting platform (15) slides up and down on the mounting base (14) through the slide groove (23), thereby realizing the up and down movement of the limiting arm (32) and the repair arm (34); The lateral drive mechanism (20) and the longitudinal drive mechanism (21) ensure that the spherical point of the limiting ball (29) furthest from the bracket (28) is always tangent to the inner edge of the undamaged raceway body (7).

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