A Welding and Grinding Repair Device for the Tapered Roll of a Ring Rolling Machine

Abstract

The present invention discloses a welding and grinding repair device for a taper roller of a ring rolling mill, specifically relating to the technical field of machining and repair. A welding and grinding repair device for a taper roller of a ring rolling mill includes a main body frame, a welding assembly, and a grinding assembly. A taper roller is arranged inside the main body frame. A driving link that rotates synchronously with the taper roller is connected to the small-diameter end of the taper roller. The other end of the driving link extends into the interior of the main body frame and is connected to an intermittent transmission module. The intermittent transmission module is drivingly connected to a threaded driving rod. A plurality of lifting linkage rods are connected to the top of the main body frame. A smooth body is connected to the threaded driving rod and the lifting linkage rods. The middle of the smooth body is threadedly connected to the threaded driving rod. A lifting platform is connected to the smooth body. A lifting transmission module is connected between the lifting platform and the smooth body. Through the drive of the ring rolling mill and the combined action of the intermittent transmission module and the lifting transmission module, one-time welding and grinding can be achieved, making its repair more efficient.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing and repairing, in particular to a welding, grinding and repairing device for a tapered roller of a ring rolling machine. Background Art

[0002] The ring rolling machine rolls the workpiece through two tapered rollers, which are easily worn parts. Excessive wear will lead to reduced processing accuracy of the ring and uneven end faces of the ring. Therefore, the tapered rollers need to be repaired every six months. During long-term use, the cone roller is prone to wear, cracks or local damage due to its high-intensity contact with the workpiece. Since the small diameter end of the cone roller is used more frequently than the large diameter end, the wear of the small diameter end is more serious than that of the large diameter end. Therefore, the overall wear of the cone roller is irregular. Considering the irregular characteristics of the overall wear of the cone roller, when repairing the cone roller, it is necessary to perform surfacing treatment on the cone roller. The repair of the cone roller usually includes welding and grinding. When repairing the cone roller, it is usually repaired in steps, and the maintenance personnel first remove the cone roller from the equipment, install the cone roller on a lathe or other auxiliary tooling, and then repair it. After the repair is completed, it is installed back to the ring rolling machine. During the repair process, it cannot be directly completed in one go, which affects the efficiency of the repair. To this end, we propose a welding and grinding repair device for the cone roller of a ring rolling machine to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a welding, grinding and repairing device and method for the tapered roller of a ring rolling machine, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a welding, grinding and repairing device for a cone roller of a ring rolling machine, comprising a main frame, a welding assembly and a grinding assembly, wherein a transverse cone roller to be repaired is arranged inside the main frame, and a driving connecting rod which rotates synchronously with the cone roller is connected to the small diameter end of the cone roller, and the driving connecting rod can rotate coaxially with the cone roller;

[0005] The other end of the driving link is connected to the main frame, and the other end of the driving link extends into the interior of the main frame and is connected to an intermittent transmission module, the intermittent transmission module is transmission-connected to a threaded driving rod, and the threaded driving rod is connected to the top of the main frame and is above the cone roller;

[0006] The top of the main frame is connected with a plurality of lifting linkage rods that rotate synchronously and in the same direction as the threaded drive rods, the threaded drive rods and the lifting linkage rods are commonly connected with a smooth body, the middle of the smooth body is threadedly connected with the threaded drive rods, and the smooth body is slidably connected with the lifting linkage rods;

[0007] A lifting table that moves up and down relative to the smoothing body is connected to the smoothing body. A lifting transmission module is connected between the lifting table and the smoothing body. Driven by the lifting transmission module, the lifting table can achieve synchronous lifting when the lifting linkage rod rotates. That is, the lifting table can move and lift along the direction pointed by the threaded drive rod to adapt to the inclined movement of the conical surface of the conical roller.

[0008] The welding assembly and the grinding assembly are both integrated on the lifting table, and the welding assembly can be adjusted in height relative to the lifting assembly.

[0009] The grinding assembly includes a welding gun, and the welding gun has an angle adjustment function.

[0010] A speed adjustment mechanism is connected between the threaded drive rod and the lifting linkage rod. The relative speed between the threaded drive rod and the lifting linkage rod is adjusted through the speed adjustment mechanism to adapt to conical rollers of different tapers.

[0011] Preferably, the welding gun is a shielding gas welding gun, and a circular gas outlet part is arranged on the outer side of the end of the welding interface of the welding gun.

[0012] The shielding gas is an inert gas, and the inert gas is ejected from the circular gas outlet part.

[0013] Preferably, a connecting frame is fixedly connected to one side of the main body frame where the driving linkage rod is located, and a transmission chamber is opened on the connecting frame, and a linkage chamber is arranged inside the connecting frame.

[0014] The intermittent transmission module is connected in the linkage chamber, and the speed adjustment mechanism is connected in the transmission chamber.

[0015] The transmission chamber and the linkage chamber are respectively connected with a first sealing plate and a second sealing plate through bolts to seal the transmission chamber and the linkage chamber.

[0016] Preferably, the intermittent transmission module includes a first transmission disc and a second transmission disc.

[0017] The first transmission disc and the second transmission disc are both connected in the linkage chamber through shaft pins. The center of the second transmission disc is connected to the other end of the driving linkage rod. A transmission shaft is connected to the center of the first transmission disc close to the driving linkage rod. A third transmission belt is sleeved on the transmission shaft and the end of the threaded drive rod.

[0018] Conical tooth parts and stop parts are arranged at intervals on the outer side of the first transmission disc, and a toothed part that coincides with the stop part is arranged on the outer side of the second transmission disc.

[0019] The stopping part can be engaged with the ratchet part. The outer side of the bevel gear part is arc-shaped and adapted to the outer side of the second transmission disc. After the ratchet part is engaged with the stopping part and drives the first transmission disc to rotate, its bevel gear part can contact the outer side of the second transmission disc to position the first transmission disc.

[0020] Preferably, the speed regulating mechanism includes an adjusting cone, a first transmission belt, an adjusting seat, and an electric push rod;

[0021] A second transmission belt is sleeved jointly between the lifting linkage rods;

[0022] The adjusting cone is in the shape of a frustum of a cone. The lifting linkage rod is connected to the small-diameter end of the adjusting cone, the threaded drive rod is connected to the large-diameter end of the adjusting cone, and a first transmission belt is sleeved between the threaded drive rod and the adjusting cone connected to the lifting linkage rod;

[0023] A plurality of positioning guide rods having the same orientation as the threaded drive rod are fixedly connected in the transmission chamber. The adjusting seat is slidably connected to the positioning guide rods. The first transmission belt passes through the middle of the adjusting seat, and the adjusting seat is located between the adjusting cones;

[0024] An electric push rod is installed inside the linkage chamber, and the output end of the electric push rod is connected to the adjusting seat.

[0025] Preferably, the smoothing body is formed by splicing two smoothing connecting frames, and they are connected by bolts therebetween. The smoothing connecting frame is in circular sliding connection with the lifting linkage rod.

[0026] Preferably, the lifting transmission module includes a square lifting assembly and a transmission external tooth ring;

[0027] The lifting linkage rod is cross-shaped and its outer side is arc-shaped. The smoothing connecting frame contacts the outer side of the lifting linkage rod. The inner side of the transmission external tooth ring is cross-plugged with the lifting linkage rod, and the transmission external tooth ring is rotatably installed between the smoothing connecting frames;

[0028] The square lifting assembly is vertically slidably connected between the smoothing connecting frames. One side inside the square lifting assembly is engaged with the transmission external tooth ring. The bottom of the square lifting assembly is connected to the lifting platform by bolts.

[0029] Preferably, the welding assembly includes a connecting rod, a grinding wheel, a motor frame, and a motor;

[0030] The motor is installed inside the motor frame, and the output shaft of the motor extends out of the motor frame and is connected to the grinding wheel.

[0031] The connecting rod is installed on both sides of the motor frame and is provided with threads thereon.

[0032] Preferably, the lifting table is vertically slidably connected to the bottom of the lifting table. Vertical straight sliding grooves corresponding to the connecting rods are formed on both sides of the lifting table. The connecting rods extend out of the connecting rods and are threadedly connected with nuts, and the nuts are abutted against the outer side of the lifting table;

[0033] A grinding cavity is formed at the bottom of the lifting table, and the grinding wheel is located in the grinding cavity.

[0034] Preferably, the driving link rod and the taper roller are cross-plugged.

[0035] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0036] 1. For the welding and grinding repair device of the taper roller of the ring rolling mill, through the drive of the ring rolling mill, the whole device can operate. And through the cooperation of the intermittent transmission module and the lifting transmission module, the welding component and the grinding component can be adaptively moved, so that the welding and grinding of the surface of the taper roller can be completed at one time, thus making the repair of the taper roller more efficient.

[0037] 2. For the welding and grinding repair device of the taper roller of the ring rolling mill, through the push of the electric push rod, the first transmission belt is driven to move, changing the transmission ratio of the adjusting cones on the threaded drive rod and the lifting linkage rod, so that the threaded drive rod and the lifting linkage rod can rotate at different speeds, enabling it to adapt to movements at different angles, and thus being able to adapt to the repair of different taper rollers, making its versatility wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0039] Figure 1 It is a schematic structural diagram of the present invention.

[0040] Figure 2 It is a schematic structural diagram of the internal connection of the transmission chamber and the linkage chamber in the present invention.

[0041] Figure 3 It is a schematic structural diagram of the connection of the threaded drive rod in the present invention;

[0042] Figure 4 It is a schematic structural diagram of the connection of the transmission shaft in the present invention;

[0043] Figure 5 It is a schematic structural diagram of the connection of the box lifting assembly in the present invention;

[0044] Figure 6 This is a schematic structural diagram of the connection of the lifting platform in the present invention;

[0045] Figure 7 This is a schematic structural diagram of the bottom of the lifting platform in the present invention;

[0046] Figure 8 This is a schematic structural diagram of the connection of the motor frame in the present invention;

[0047] Figure 9 This is a schematic structural diagram of the connection of the driving link in the present invention;

[0048] Figure 10 This is a schematic structural diagram of location A in the present invention;

[0049] Figure 11 This is a schematic structural diagram of location B in the present invention;

[0050] Figure 12 This is a schematic structural diagram of location C in the present invention;

[0051] Figure 13 This is a schematic structural diagram of location D in the present invention;

[0052] Figure 14 This is a schematic structural diagram of location E in the present invention.

[0053] In the figure: 1, main body frame; 2, threaded drive rod; 3, lifting linkage rod; 4, smooth connection frame; 5, square lifting assembly; 6, driving link; 7, tapered roller; 8, connection frame; 9, first sealing plate; 10, second sealing plate; 11, transmission chamber; 12, linkage chamber; 13, adjusting cone; 14, first transmission belt; 15, first transmission disc; 15a, bevel gear part; 15b, stop part; 16, second transmission disc; 16a, ratchet part; 17, lifting platform; 18, second transmission belt; 19, third transmission belt; 20, transmission shaft; 21, welding gun; 21a, annular air outlet part; 22, transmission external tooth ring; 23, vertical straight chute; 24, connecting rod; 25, grinding chamber; 26, grinding wheel; 27, motor frame; 28, motor; 29, nut; 30, positioning guide rod; 31, adjusting seat; 32, electric push rod. Detailed implementation manners

[0054] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0055] As Figure 1-7 shown, the present invention provides a welding and grinding repair device for a conical roller of a ring rolling mill, which includes a main body frame 1, a welding assembly and a grinding assembly. A horizontal conical roller 7 to be repaired is arranged inside the main body frame 1. A driving link rod 6 that rotates synchronously with the conical roller 7 is connected to the small diameter end of the conical roller 7. The driving link rod 6 can rotate coaxially with the conical roller 7. By the rotation of the conical roller 7, the driving link rod 6 is driven to rotate, eliminating the need to install an external driving source and without the need to disassemble the conical roller 7 from the ring rolling mill and install it on a lathe or other auxiliary tooling, so that automatic welding and grinding can be performed on the surface of the conical roller 7, shortening the repair time;

[0056] The other end of the driving link rod 6 is connected to the main body frame 1, and an intermittent transmission module is connected inside the main body frame 1 at the other end of the driving link rod 6. By the rotation of the driving link rod 6, the driving of the intermittent transmission module can be realized. The intermittent transmission module is drivingly connected to a threaded driving rod 2. The threaded driving rod 2 is connected to the top of the main body frame 1 and is located above the conical roller 7. The intermittent transmission module can realize the intermittent rotation of the threaded driving rod 2;

[0057] A plurality of lifting linkage rods 3 that rotate synchronously and in the same direction as the threaded driving rod 2 are connected to the top of the main body frame 1. The threaded driving rod 2 can rotate intermittently together with the lifting linkage rods 3. A smooth body is commonly connected to the threaded driving rod 2 and the lifting linkage rods 3. The middle of the smooth body is threadedly connected to the threaded driving rod 2, and the smooth body is slidably connected to the lifting linkage rods 3. Under the combined action of the threaded driving rod 2 and the lifting linkage rods 3, the smooth body can move along the direction pointed by the threaded driving rod 2 in a fixed trajectory, and under the action of the rotation of the lifting linkage rods 3, the smooth body can move;

[0058] A lifting table 17 that moves up and down relative to the smooth body is connected to the smooth body. The lifting table 17 and the smooth body can move along the trajectory pointed by the threaded driving rod 2 together. A lifting transmission module is connected between the lifting table 17 and the smooth body. Driven by the lifting transmission module, the lifting table 17 can be lifted synchronously when the lifting linkage rods 3 rotate, that is, the lifting table 17 can move along the direction pointed by the threaded driving rod 2 while lifting to adapt to the inclined movement of the conical surface of the conical roller 7. By the rotation of the threaded driving rod 2, the movement of the lifting table 17 along the trajectory pointed by the threaded driving rod 2 is finally realized. By the rotation of the lifting linkage rods 3, the lifting transmission module is driven to operate, and finally the effect of lifting the lifting table 17 is realized. By changing the speed difference between the threaded driving rod 2 and the lifting linkage rods 3, the linear movement of the lifting table 17 along different inclined angles can be finally realized, achieving the effect of adapting to different conical rollers 7;

[0059] The welding assembly and the grinding assembly are both integrated on the lifting table 17, and the height of the welding assembly can be adjusted relative to the lifting assembly. By moving the lifting table 17, the welding assembly and the grinding assembly can gradually repair the tapered roller 7. That is, in one stroke, the comprehensive repair of the tapered roller 7 can be completed, making its repair more efficient. Under the action of the intermittent drive module, the welding assembly and the grinding assembly can move and then stop. At this time, the tapered roller 7 continues to rotate, enabling the welding assembly and the grinding assembly to complete the repair of one circle of the tapered roller 7. And due to the adjustable height of the welding assembly, the welding assembly and the grinding assembly can be adjusted adaptively to adapt to the repair of different tapered rollers 7;

[0060] The grinding assembly includes a welding gun 21, and the welding gun 21 has an angle adjustment function;

[0061] A speed adjustment mechanism is connected between the threaded drive rod 2 and the lifting linkage rod 3. By adjusting the relative speed between the threaded drive rod 2 and the lifting linkage rod 3 through the speed adjustment mechanism, it can adapt to tapered rollers 7 of different tapers. Through the action of the speed adjustment mechanism, the speed difference between the threaded drive rod 2 and the lifting linkage rod 3 can be adjusted, thus making its versatility better. Embodiment

[0062] As Figure 1-5 and Figure 11 and Figure 14 As shown, the welding gun 21 is a shielding gas welding gun, and a ring-shaped gas outlet portion 21a is provided on the outer side of the end of the welding port of the welding gun 21;

[0063] The shielding gas is an inert gas, and the inert gas is ejected from the ring-shaped gas outlet portion 21a. By ejecting the inert gas from the ring-shaped gas outlet portion 21a, a ring-shaped relative isolation area can be formed at the welding position, preventing impurities such as nitrogen and water vapor in the air from possibly entering the molten pool, resulting in welding defects such as pores and slag inclusions, thereby improving the density and mechanical properties of the welded joint. At the same time, during welding, the stability of the arc directly affects the welding quality. Oxygen and nitrogen in the air will interfere with the stability of the arc, causing the arc to drift or go out. It can stabilize the arc, reduce arc drift, and ensure the continuity and stability of the welding process.

[0064] Specifically, one side of the main frame 1 where the drive linkage rod 6 is located is fixedly connected with a connection frame 8, and a transmission chamber 11 is opened on the connection frame 8, and a linkage chamber 12 is provided inside the connection frame 8;

[0065] The intermittent drive module is connected inside the linkage chamber 12, and the speed adjustment mechanism is connected inside the transmission chamber 11;

[0066] The transmission chamber 11 and the linkage chamber 12 are respectively connected with a first sealing plate 9 and a second sealing plate 10 by bolts to close the transmission chamber 11 and the linkage chamber 12.

[0067] Specifically, the intermittent transmission module includes a first transmission disc 15 and a second transmission disc 16;

[0068] The first transmission disc 15 and the second transmission disc 16 are both connected in the linkage chamber 12 by pin shafts. The center of the second transmission disc 16 is connected to the other end of the driving link 6. Through the transmission of the driving link 6, the second transmission disc 16 can rotate continuously. A transmission shaft 20 is connected to the center of the first transmission disc 15 on the side close to the driving link 6. A third transmission belt 19 is sleeved on the transmission shaft 20 and the end of the threaded driving rod 2. Through the transmission of the first transmission disc 15, the transmission shaft 20 can rotate, and then through the transmission of the third transmission belt 19, the threaded driving rod 2 can rotate;

[0069] The outer side of the first transmission disc 15 is provided with a tapered tooth portion 15a and a stop portion 15b which are spaced apart from each other. The outer side of the second transmission disc 16 is provided with a toothed portion 16a that fits with the stop portion 15b, that is, the stop portion 15b and the toothed portion 16a can be engaged. Through their engagement, the second transmission disc 16 can drive the first transmission disc 15 to rotate;

[0070] The stop portion 15b can be engaged with the toothed portion 16a. The outer side of the tapered tooth portion 15a is arc-shaped and adapted to the outer side of the second transmission disc 16, that is, the arc shape on the outer side of the tapered tooth portion 15a is the same as the circle of the second transmission disc 16. After the toothed portion 16a is engaged with the stop portion 15b and drives the first transmission disc 15 to rotate, its tapered tooth portion 15a can contact the outer side of the second transmission disc 16 to position the first transmission disc 15. When the stop portion 15b and the toothed portion 16a are disengaged, the circular part of the second transmission disc 16 fits with the arc of the tapered tooth portion 15a. At this time, when the second transmission disc 16 continues to rotate, the first transmission disc 15 will remain stationary until the next engagement of the stop portion 15b and the toothed portion 16a. Embodiment

[0071] As Figure 1-5 and Figure 10 and Figure 12 shown, the speed regulating mechanism includes an adjusting cone 13, a first transmission belt 14, an adjusting seat 31, and an electric push rod 32;

[0072] A second transmission belt 18 is sleeved between the lifting linkage rods 3. Through the transmission of the second transmission belt 18, the lifting linkage rods 3 can rotate synchronously;

[0073] The adjusting cone 13 is in the shape of a frustum of a cone. The lifting linkage rod 3 is connected to the small-diameter end of the adjusting cone 13, and the threaded drive rod 2 is connected to the large-diameter end of the adjusting cone 13. A first transmission belt 14 is sleeved between the threaded drive rod 2 and the adjusting cone 13 connected to the lifting linkage rod 3. At this time, through the movement of the first transmission belt 14, the diameter of the circle where the first transmission belt 14 is sleeved on the adjusting cone 13 will change, so as to achieve the effect of changing the transmission ratio;

[0074] A plurality of positioning guide rods 30 having the same orientation as the threaded drive rod 2 are fixedly connected in the transmission chamber 11. The adjusting seat 31 is slidably connected to the positioning guide rods 30. The first transmission belt 14 passes through the middle of the adjusting seat 31, and the adjusting seat 31 is located between the adjusting cones 13. By moving the adjusting seat 31, the position of the first transmission belt 14 can be changed, thereby realizing the change of the transmission ratio of the adjusting cone 13;

[0075] An electric push rod 32 is installed inside the linkage chamber 12. The output end of the electric push rod 32 is connected to the adjusting seat 31. Driven by the electric push rod 32, the adjusting seat 31 can move. Embodiment

[0076] As Figure 1-6 and Figure 13 shown, the smooth body is formed by splicing two smooth connecting frames 4, and they are connected by bolts. The smooth connecting frame 4 is in circular sliding connection with the lifting linkage rod 3, so that the rotation of the lifting linkage rod 3 will not affect the smooth connecting frame 4.

[0077] Specifically, the lifting transmission module includes a square lifting assembly 5 and a transmission external gear ring 22;

[0078] The lifting linkage rod 3 is in a cross shape and its outer side is arc-shaped. The smooth connecting frame 4 is in contact with the outer side of the lifting linkage rod 3. The inner side of the transmission external gear ring 22 is cross-inserted with the lifting linkage rod 3, so that the rotation of the lifting linkage rod 3 can drive the transmission external gear ring 22 to rotate, and the transmission external gear ring 22 is rotatably installed between the smooth connecting frames 4. By disassembling the smooth connecting frame 4, the transmission external gear ring 22 can be disassembled;

[0079] The square lifting assembly 5 is vertically slidably connected between the smooth connecting frames 4. One side inside the square lifting assembly 5 is meshed with the transmission external gear ring 22. The bottom of the square lifting assembly 5 is connected to the lifting platform 17 by bolts. Driven by the rotation of the transmission external gear ring 22, the lifting platform 17 can move linearly. Embodiment

[0080] AsFigure 1-8 As shown, the welding assembly includes a connecting rod 24, a grinding wheel 26, a motor frame 27, and a motor 28;

[0081] The motor 28 is installed inside the motor frame 27, and the output shaft of the motor 28 extends out of the motor frame 27 and is connected to the grinding wheel 26. Driven by the output shaft of the motor 28, the grinding wheel 26 can rotate to grind the cone roller 7.

[0082] The connecting rods 24 are installed on both sides of the motor frame 27 and are provided with threads.

[0083] Specifically, the lifting platform 17 is vertically slidably connected to the bottom of the lifting platform 17, and vertical straight sliding grooves 23 corresponding to the connecting rods 24 are opened on both sides of the lifting platform 17. The connecting rods 24 extend out of the connecting rods 24 and are threadedly connected with nuts 29, and the nuts 29 abut against the outer side of the lifting platform 17. By screwing the nuts 29, the nuts 29 can abut against the lifting platform 17, thereby limiting the position of the motor frame 27 after adjustment.

[0084] A grinding chamber 25 is formed at the bottom of the lifting platform 17 , and the grinding wheel 26 is located in the grinding chamber 25 . Example

[0085] like Figure 1-5 and Figure 9 As shown, the driving link 6 and the tapered roller 7 are cross-connected, so that the driving link 6 and the tapered roller 7 can rotate in tandem by simply being connected.

[0086] In summary, for the welding and grinding repair device of the conical roller of the ring rolling machine, during use, the driving link 6 and the conical roller 7 are cross-plugged. The ring rolling machine drives the conical roller 7 to rotate, realizing the synchronous rotation of the driving link 6. Driven by the rotation of the driving link 6, the second transmission disc 16 can rotate. Under the action of the rotation of the second transmission disc 16, when its tooth part 16a meshes with the stop part 15b, the rotation of the second transmission disc 16 can drive the first transmission disc 15 to rotate. Then, when the tooth part 16a and the stop part 15b are disengaged, at this time, the conical tooth part 15a just contacts the outer side of the second transmission disc 16. At this time, the second transmission disc 16 rotates while the first transmission disc 15 does not rotate, that is, the welding gun 21 and the grinding wheel 26 are stationary. At this time, only the conical roller 7 rotates. After the conical roller 7 rotates one circle, the tooth part 16a and the stop part 15b mesh again, realizing that the welding gun 21 and the grinding wheel 26 can perform one circle of welding and grinding on the welding gun 21 and the grinding wheel 26. When the first transmission disc 15 rotates, it drives the transmission shaft 20 to rotate. Driven by the third transmission belt 19, the threaded drive rod 2 can rotate. Driven by the threaded drive rod 2, the adjusting cone 13 can rotate. At the same time, driven by the first transmission belt 14, the adjusting cones 13 on the threaded drive rod 2 and the lifting linkage rod 3 can rotate synchronously to drive the lifting linkage rod 3 to rotate. Under the action of the rotation of the threaded drive rod 2, the smooth connecting frame 4 can move in the direction pointed by the threaded drive rod 2. Driven by the rotation of the lifting linkage rod 3, the transmission external tooth ring 22 can rotate. Driven by the rotation of the transmission external tooth ring 22, the square lifting assembly 5 can rise, that is, the lifting table 17 can move in the direction of the threaded drive rod 2 and rise at the same time to adapt to the slope of the surface of the conical roller 7, so that the welding gun 21 and the grinding wheel 26 can stably weld and grind the surface of the conical roller 7, and the inert gas can be ejected from the annular air outlet part 21a. Through the isolation of the inert gas, impurities such as nitrogen and water vapor in the external air are isolated to prevent them from possibly entering the molten pool and causing welding defects such as pores and slag inclusions;

[0087] When adjusting the moving trajectories of the welding torch 21 and the grinding wheel 26, driven by the electric push rod 32, the adjusting seat 31 can move along the positioning guide rod 30 and drive the first transmission belt 14 to move, so that the first transmission belt 14 can be sleeved at different positions on the adjusting cone 13. By changing the position of the first transmission belt 14 on the adjusting cone 13, the transmission ratio of the adjusting cone 13 on the threaded drive rod 2 and the lifting linkage rod 3 is realized, so as to change the speed difference between the threaded drive rod 2 and the lifting linkage rod 3, and further change the lifting speed of the lifting table 17 and the pointing moving speed of the threaded drive rod 2, so as to realize the movement of the welding torch 21 and the grinding wheel 26 at different inclination angles. And through the movement of the motor bracket 27 relative to the lifting table 17, it is realized that the welding torch 21 and the motor bracket 27 can simultaneously adapt to the welding and grinding of different taper rollers 7, and its positioning of the motor bracket 27 can be realized by screwing the nut 29.

[0088] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding, grinding and repairing device for a tapered roller of a ring rolling machine, comprising a main frame (1), a welding assembly and a grinding assembly, characterized in that: A transverse cone roller (7) to be repaired is arranged inside the main frame (1), and a driving link (6) which rotates synchronously with the cone roller (7) is connected to the small diameter end of the cone roller (7), and the driving link (6) can rotate coaxially with the cone roller (7); The other end of the driving link (6) is connected to the main frame (1), and the other end of the driving link (6) extends into the interior of the main frame (1) and is connected to an intermittent transmission module, the intermittent transmission module is drivingly connected to a threaded driving rod (2), and the threaded driving rod (2) is connected to the top of the main frame (1) and is located above the conical roller (7); The top of the main frame (1) is connected to a plurality of lifting linkage rods (3) that rotate synchronously and in the same direction as the threaded drive rods (2); the threaded drive rods (2) and the lifting linkage rods (3) are commonly connected to a smooth body; the middle of the smooth body is threadedly connected to the threaded drive rods (2); and the smooth body is slidably connected to the lifting linkage rods (3); The smooth body is connected to a lifting platform (17) for lifting relative to the smooth body, and a lifting transmission module is connected between the lifting platform (17) and the smooth body. Under the transmission of the lifting transmission module, the lifting platform (17) can achieve synchronous lifting when the lifting linkage rod (3) rotates, that is, the lifting platform (17) can move along the direction pointed by the threaded drive rod (2) and lift and lower at the same time to adapt to the tilting movement of the conical surface of the conical roller (7); The welding assembly and the grinding assembly are both integrated on the lifting platform (17), and the height of the welding assembly can be adjusted relative to the lifting assembly; The grinding assembly comprises a welding gun (21), and the welding gun (21) has an angle adjustment function; A rotation speed regulating mechanism is connected between the threaded drive rod (2) and the lifting linkage rod (3), and the relative rotation speed between the threaded drive rod (2) and the lifting linkage rod (3) is adjusted by the rotation speed regulating mechanism to adapt to cone rollers (7) of different cone shapes.

2. The welding, grinding and repairing device for the tapered roller of a ring rolling machine according to claim 1, characterized in that: The welding gun (21) is a shielding gas welding gun, and an annular gas outlet (21a) is provided on the outer side of the end of the welding port of the welding gun (21); The protective gas is an inert gas, and the inert gas is ejected from the annular gas outlet (21a).

3. The welding, grinding and repairing device for the tapered roller of a ring rolling machine according to claim 2, characterized in that: A connecting frame (8) is fixedly connected to one side of the main frame (1) located at the driving connecting rod (6), and a transmission chamber (11) is provided on the connecting frame (8), and a linkage chamber (12) is provided inside the connecting frame (8); The intermittent transmission module is connected to the linkage chamber (12), and the speed adjustment mechanism is connected to the transmission chamber (11); The transmission chamber (11) and the linkage chamber (12) are respectively connected to a first sealing plate (9) and a second sealing plate (10) by bolts, so as to seal the transmission chamber (11) and the linkage chamber (12).

4. The welding, grinding and repairing device for the tapered roller of a ring rolling machine according to claim 3 is characterized in that: The intermittent transmission module comprises a first transmission disc (15) and a second transmission disc (16); The first transmission disc (15) and the second transmission disc (16) are both connected in the linkage chamber (12) via an axle pin; the center of the second transmission disc (16) is connected to the other end of the driving connecting rod (6); the center of the first transmission disc (15) close to the driving connecting rod (6) is connected to a transmission shaft (20); the transmission shaft (20) and the end of the threaded driving rod (2) are sleeved with a third transmission belt (19); The outer side of the first transmission disc (15) is provided with a bevel tooth portion (15a) and a stop portion (15b) which are designed to be spaced apart from each other, and the outer side of the second transmission disc (16) is provided with a meshing tooth portion (16a) which matches the stop portion (15b); The stop portion (15b) can mesh with the toothed portion (16a); the outer side of the beveled tooth portion (15a) is arc-shaped and adapted to the outer side of the second transmission disc (16); after the toothed portion (16a) meshes with the stop portion (15b) and drives the first transmission disc (15) to rotate, the beveled tooth portion (15a) can contact the outer side of the second transmission disc (16) to position the first transmission disc (15).

5. The welding, grinding and repairing device for the tapered roller of a ring rolling machine according to claim 3 is characterized in that: The speed adjustment mechanism comprises an adjustment cone (13), a first transmission belt (14), an adjustment seat (31), and an electric push rod (32); A second transmission belt (18) is sleeved between the lifting linkage rods (3); The adjusting cone (13) is in the shape of a truncated cone, the lifting linkage rod (3) is connected to the small diameter end of the adjusting cone (13), the threaded drive rod (2) is connected to the large diameter end of the adjusting cone (13), and a first transmission belt (14) is sleeved between the threaded drive rod (2) and the adjusting cone (13) connected to the lifting linkage rod (3); A plurality of positioning guide rods (30) oriented in the same direction as the threaded drive rod (2) are fixedly connected in the transmission chamber (11); the adjustment seat (31) is slidably connected to the positioning guide rods (30); the first transmission belt (14) passes through the middle of the adjustment seat (31), and the adjustment seat (31) is located between the adjustment cones (13); An electric push rod (32) is installed inside the linkage chamber (12), and an output end of the electric push rod (32) is connected to the adjustment seat (31).

6. The welding, grinding and repairing device for the tapered roller of a ring rolling machine according to claim 3, characterized in that: The smooth body is composed of two smooth connecting frames (4) which are connected by bolts, and the smooth connecting frame (4) is connected to the lifting linkage rod (3) in a circular sliding manner.

7. The welding, grinding and repairing device for the tapered roller of a ring rolling machine according to claim 6, characterized in that: The lifting transmission module comprises a frame lifting assembly (5) and a transmission outer gear ring (22); The lifting linkage rod (3) is cross-shaped and has an outer side in an arc shape, the smooth connection frame (4) is in contact with the outer side of the lifting linkage rod (3), the inner side of the transmission outer gear ring (22) is cross-plugged with the lifting linkage rod (3), and the transmission outer gear ring (22) is rotatably mounted between the smooth connection frames (4); The square frame lifting assembly (5) is vertically slidably connected between the smooth connecting frames (4), one side of the interior of the square frame lifting assembly (5) is meshed with the transmission outer gear ring (22), and the bottom of the square frame lifting assembly (5) is connected to the lifting platform (17) via bolts.

8. The welding, grinding and repairing device for the tapered roller of a ring rolling machine according to claim 3, characterized in that: The welding assembly comprises a connecting rod (24), a grinding wheel (26), a motor frame (27), and a motor (28); The motor (28) is installed inside the motor frame (27), and the output shaft of the motor (28) extends out of the motor frame (27) and is connected to the grinding wheel (26). The connecting rods (24) are mounted on both sides of the motor frame (27) and are provided with threads.

9. The welding, grinding and repairing device for the tapered roller of a ring rolling machine according to claim 8, characterized in that: The lifting platform (17) is vertically slidably connected to the bottom of the lifting platform (17), and vertical straight sliding grooves (23) corresponding to the connecting rod (24) are opened on both sides of the lifting platform (17). The connecting rod (24) extends out of the connecting rod (24) and is threadedly connected with a nut (29), and the nut (29) abuts against the outer side of the lifting platform (17); A grinding chamber (25) is provided at the bottom of the lifting platform (17), and the grinding wheel (26) is located in the grinding chamber (25).

10. The welding, grinding and repairing device for the tapered roller of a ring rolling machine according to claim 3, characterized in that: The driving connecting rod (6) and the tapered roller (7) are cross-connected.

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