Induction quenching device for producing forged steel backup roll

Abstract

The present application relates to the technical field of forged steel backup roll quenching, and particularly relates to an induction quenching device for forged steel backup roll production, which comprises a base, the top side of the base is provided with a lifting plate, a rotating plate is rotationally connected to the lifting plate through a rotating shaft, a clamping assembly is arranged on the rotating plate, and a water storage tank is fixedly connected to the top of the base; the clamping assembly is combined with the self-adaptive clamp, the forged steel backup roll is first positioned and pre-clamped to ensure that the upper center and the lower center can stably clamp the forged steel backup roll, then the trapezoidal guide block is moved by combining with the lifting operation, the forged steel backup roll is secondarily and intensively clamped, the position of the clamping seat is simultaneously locked, the effect of anti-falling stable clamping during the lifting and feeding process is realized, and the quenching assembly is arranged to realize instant water spraying quenching treatment after induction heating, thereby improving the quenching efficiency and quality of the large forged steel backup roll.

Description

Technical Field

[0001] This invention relates to the field of quenching technology for forged steel support rolls, and more particularly to an induction quenching device for the production of forged steel support rolls. Background Technology

[0002] The principle of induction hardening is to place the workpiece in an inductor. When an alternating current passes through the inductor, an alternating magnetic field with the same frequency as the current is generated around the inductor. This magnetic field passes through the metal workpiece placed in the inductor coil, and an induced electromotive force is generated in the workpiece accordingly. Electromagnetic induction generates an induced current, i.e., an eddy current, with the same frequency. Relying on this current and the resistance of the workpiece itself, the surface of the workpiece is rapidly heated to the quenching temperature. Then, water is sprayed immediately to cool the workpiece, hardening the surface to obtain a very fine acicular martensite structure. The quenching treatment of large forged steel support rollers uses induction hardening.

[0003] For example, in the prior art, there is a large dual-frequency support roller quenching machine tool with the publication number CN208071757U. Although the quenching machine tool achieves dual-frequency heating of forged steel support rollers through two sets of quenching devices to achieve high quenching efficiency, after quenching, due to its simple structure, it cannot achieve autonomous replacement of forged steel support rollers. It requires additional hoisting equipment for auxiliary loading, which increases the complexity of the overall operation process. Moreover, it lacks an efficient centering mechanism, making it difficult to quickly and accurately achieve automatic centering of the support roller axis with the upper and lower centers during the loading and fixing of forged steel support rollers. As a result, when processing multiple forged steel support rollers continuously, its overall quenching efficiency is significantly restricted.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an induction quenching device for the production of forged steel support rollers, addressing the aforementioned technical deficiencies. This device utilizes a clamping assembly combined with an adaptive clamp to pre-position and pre-clamp the forged steel support roller, ensuring stable clamping of the roller by the upper and lower centers during quenching. Then, combined with a hoisting operation, the trapezoidal guide block moves, providing secondary reinforcement clamping of the forged steel support roller and simultaneously locking the position of the clamping seat, thus achieving a stable, anti-detachment clamping effect during hoisting and loading. Furthermore, the quenching assembly not only enables immediate water spray quenching after induction heating but also drives the forged steel support roller to rotate, thereby improving the quenching efficiency and quality of large forged steel support rollers.

[0006] The objective of this invention can be achieved through the following technical solution: an induction quenching device for producing forged steel support rollers, comprising a base, a lifting plate provided on one side of the top of the base, and a rotating plate rotatably connected to the lifting plate via a rotating shaft, a clamping assembly provided on the rotating plate, the clamping assembly comprising a transverse fixed seat fixedly connected to the rotating plate, and an upper center rotatably connected to the bottom center of the transverse fixed seat, T-shaped sliders symmetrically slidably connected to both sides inside the transverse fixed seat, a bidirectional lead screw threadedly connected to the T-shaped sliders rotatably connected inside the transverse fixed seat, and a clamping seat fixedly connected to the T-shaped sliders;

[0007] A water storage tank is fixedly connected to the top of the base, and a lower center is rotatably connected to the bottom of the water storage tank. A quenching assembly is provided inside the water storage tank. The quenching assembly includes an annular water baffle, and a heating coil is installed inside the annular water baffle.

[0008] Preferably, hydraulic cylinders are symmetrically fixedly installed between the lifting plate and the base, two sets of guide rods that are slidably connected to the lifting plate are fixedly connected to the base, a rotary motor for driving the corresponding rotating shaft is bolted to the lifting plate, and a clamping motor for driving the bidirectional lead screw is bolted to the transverse fixed seat.

[0009] Preferably, a trapezoidal groove is provided on the side of the clamping seat near the top center, a trapezoidal guide block is slidably connected in the trapezoidal groove, and limit pins are symmetrically fixedly connected on both sides of the trapezoidal guide block. A limit groove is provided on the inner side wall of the trapezoidal groove, which is slidably connected to the corresponding limit pin. A return spring is fixedly connected between the bottom of the trapezoidal guide block and the trapezoidal groove, and an adaptive clamp is installed on one side of the trapezoidal guide block.

[0010] Preferably, the adaptive clamp includes a mounting block, one side of which is symmetrically provided with an arc-shaped groove, and a semi-circular clamping block is slidably connected inside the arc-shaped groove. One side of the semi-circular clamping block is symmetrically provided with an arc-shaped groove, and a semi-circular clamping block is slidably connected inside the arc-shaped groove.

[0011] Preferably, a movable block is fixedly connected to one side of the mounting block, and a movable groove is provided on the trapezoidal guide block to slide and connect with the movable block. An auxiliary spring is fixedly connected between the movable block and the movable groove.

[0012] Preferably, one side of the clamping seat is provided with an installation groove that communicates with the trapezoidal groove. A push plate is rotatably connected inside the installation groove. An L-shaped slide is symmetrically fixedly connected to the side of the clamping seat away from the trapezoidal groove. A card plate is slidably connected between the L-shaped slides. A push rod that is slidably connected to the push plate is fixedly connected to the card plate. Multiple auxiliary card slots that are adapted to the card plate are equidistantly provided at the bottom of the transverse fixing seat along its length direction.

[0013] Preferably, a vertical fixing seat is fixedly connected inside the water storage tank, a lifting screw is rotatably connected inside the vertical fixing seat, a lifting motor for driving the lifting screw to rotate is bolted to the vertical fixing seat, a lifting block that is threadedly connected to the lifting screw is slidably connected inside the vertical fixing seat, and the lifting block is fixedly connected to the annular water baffle.

[0014] Preferably, the bottom end of the lifting screw extends through to the outside of the vertical fixed base and is fixedly connected to a drive sprocket, and a driven sprocket is fixedly connected to the lower center point. The drive sprocket and the driven sprocket are connected by a chain drive.

[0015] Preferably, the annular water baffle has a water outlet cavity inside its side wall, and the inner side wall of the annular water baffle has several water outlet holes that communicate with the water outlet cavity. A water pump is installed at the bottom of the water storage tank by bolts, and a water injection hose is fixedly connected between the outlet of the water pump and the water outlet cavity.

[0016] The beneficial effects of this invention are as follows:

[0017] (1) This invention achieves preliminary pre-clamping of the forged steel support roller by the relative movement of two sets of clamping seats on the transverse fixed seat, and ensures that the upper center point coincides with the axis of the forged steel support roller, so as to ensure the subsequent cooperation of the upper and lower centers and achieve stable clamping of the forged steel support roller during the quenching process; on the other hand, the trapezoidal guide block and trapezoidal groove in the clamping seat cooperate, so that when the forged steel support roller is hoisted and loaded, the trapezoidal guide block moves downward and moves towards the forged steel support roller, thereby performing secondary reinforcement clamping, further increasing the clamping force on the forged steel support roller, so that the forged steel support roller achieves stable clamping without slippage during the hoisting and loading process; and with the downward movement of the trapezoidal guide block, combined with the push plate driving the clamping plate to rise and insert into the corresponding auxiliary clamping groove, the position of the clamping seat is locked, further improving the anti-slipping effect during hoisting and loading; in addition, the adaptive clamping fixture can provide a larger clamping area for forged steel support rollers of different sizes, further improving the positioning clamping and anti-slipping clamping effect;

[0018] (2) The present invention also sets the heating coil inside the annular water baffle, which can realize the instant water spray quenching treatment after heating of the forged steel support roller by using the lifting and lowering movement of the annular water baffle, significantly improving the quenching efficiency and quality of the large forged steel support roller. In addition, by means of the rotation of the lifting screw, the lower tip carries the forged steel support roller with stable clamping to rotate, ensuring the all-round uniformity of induction heating and further improving the quenching quality. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings;

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the cooperation between the clamping component of the present invention and the forged steel support roller;

[0022] Figure 3 This is a schematic diagram showing the disassembled clamping component of the present invention;

[0023] Figure 4 This is a schematic diagram of the cooperation between the clamping seat and the trapezoidal guide block of the present invention;

[0024] Figure 5 This is a schematic diagram of the cooperation between the clamping base and the card plate of the present invention;

[0025] Figure 6 This is a schematic diagram of the adaptive fixture of the present invention;

[0026] Figure 7 This is a schematic diagram of the quenching component of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the annular water-blocking cover of the present invention.

[0028] Legend:

[0029] 1. Base; 11. Lifting plate; 12. Rotating shaft; 13. Rotating plate; 14. Hydraulic cylinder; 15. Guide rod; 16. Rotating motor; 17. Water tank; 18. Lower center;

[0030] 2. Clamping assembly; 21. Lateral fixing seat; 22. Upper center; 23. T-shaped slider; 24. Two-way lead screw; 25. Clamping seat; 26. Clamping motor; 27. Trapezoidal groove; 28. Trapezoidal guide block; 29. ​​Limit pin; 210. Limit groove; 211. Return spring; 212. Movable groove; 213. Mounting groove; 214. Push plate; 215. L-shaped slide rail; 216. Card plate; 217. Push rod; 218. Auxiliary card slot;

[0031] 3. Quenching assembly; 31. Annular water baffle; 32. Heating coil; 33. Vertical fixing base; 34. Lifting screw; 35. Lifting motor; 36. Lifting block; 37. Drive sprocket; 38. Driven sprocket; 39. Chain; 310. Water outlet chamber; 311. Water outlet hole; 312. Water pump; 313. Water injection hose;

[0032] 4. Adaptive clamp; 41. Mounting block; 42. Semicircular clamping block one; 43. Semicircular clamping block two; 44. Movable block; 45. Auxiliary spring. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figures 1-8 As shown, the problem that the forged steel support rollers cannot be replaced independently and requires additional hoisting equipment for auxiliary loading, which increases the complexity of the overall operation process, can be solved by the following solutions;

[0035] This embodiment discloses an induction quenching device for producing forged steel support rollers, comprising a base 1, a lifting plate 11 on one side of the top of the base 1, and a rotating plate 13 rotatably connected to the lifting plate 11 via a rotating shaft 12. The lifting plate 11 drives the rotating plate 13 to lift and lower the clamping assembly 2, thereby driving the clamped forged steel support roller to move up and down. In addition, the rotating shaft 12 drives the rotating plate 13 to rotate, thereby changing the horizontal position of the clamping assembly 2. This enables autonomous hoisting and loading of the forged steel support rollers without the need for additional hoisting equipment, reducing the complexity of the overall operation process and improving the overall quenching efficiency when processing multiple forged steel support rollers continuously.

[0036] A clamping assembly 2 is provided on the rotating plate 13. The clamping assembly 2 includes a transverse fixing seat 21 fixedly connected to the rotating plate 13, and an upper center point 22 is rotatably connected to the bottom center of the transverse fixing seat 21. T-shaped sliders 23 are symmetrically slidably connected to both sides inside the transverse fixing seat 21. A bidirectional lead screw 24 is rotatably connected to the T-shaped slider 23 and threadedly connected to it. A clamping seat 25 is fixedly connected to the T-shaped slider 23.

[0037] By rotating the bidirectional lead screw 24, two sets of T-shaped sliders 23 are driven to move synchronously relative to each other with corresponding clamping seats 25, thereby achieving the effect of centering and clamping the forged steel support roller. This enables the automatic centering of the forged steel support roller axis with the upper center 22 to ensure that the upper center 22 and the lower center 18 cooperate in the subsequent process, thus achieving stable clamping of the forged steel support roller during the quenching process.

[0038] A water storage tank 17 is fixedly connected to the top of the base 1 for storing quenching cooling water and collecting water sprayed out during quenching. A lower center 18 is rotatably connected to the bottom of the water storage tank 17, which cooperates with the upper center 22 and the hydraulic cylinder 14 to stably clamp the forged steel support roller during the quenching process. A quenching component 3 is provided inside the water storage tank 17. The quenching component 3 includes an annular water baffle 31, and a heating coil 32 is installed inside the annular water baffle 31. By energizing the heating coil 32 and moving the heating coil 32 outside the forged steel support roller, induction heating of the forged steel support roller is achieved.

[0039] Hydraulic cylinders 14 are symmetrically fixed between the lifting plate 11 and the base 1. Two sets of guide rods 15 that are slidably connected to the lifting plate 11 are fixedly connected to the base 1. The lifting plate 11 has a cross-shaped structure, and the two sets of hydraulic cylinders 14 and the two sets of guide rods 15 are arranged in a rectangular shape to realize the stable lifting movement of the lifting plate 11. A rotary motor 16 for driving the corresponding rotating shaft 12 to rotate is bolted to the lifting plate 11. The rotary motor 16 is used to drive the rotating shaft 12 to rotate, thereby driving the clamped and fixed forged steel support roller to transfer between the feeding area and the quenching area. A clamping motor 26 for driving the bidirectional lead screw 24 to rotate is bolted to the transverse fixed seat 21.

[0040] A trapezoidal groove 27 is provided on one side of the clamping base 25 near the upper center point 22. A trapezoidal guide block 28 is slidably connected in the trapezoidal groove 27, and limit pins 29 are symmetrically fixedly connected on both sides of the trapezoidal guide block 28. A limit groove 210 is provided on the inner side wall of the trapezoidal groove 27 and is slidably connected to the corresponding limit pin 29. A return spring 211 is fixedly connected between the bottom of the trapezoidal guide block 28 and the trapezoidal groove 27. An adaptive clamp 4 is installed on one side of the trapezoidal guide block 28. The adaptive clamp 4 is installed through the trapezoidal groove 27 and the trapezoidal guide block 28 on the clamping base 25.

[0041] The adaptive clamp 4 includes a mounting block 41. One side of the mounting block 41 is symmetrically provided with an arc-shaped groove, and a semi-circular clamping block 42 is slidably connected inside the arc-shaped groove. One side of the semi-circular clamping block 42 is symmetrically provided with an arc-shaped groove, and a semi-circular clamping block 43 is slidably connected inside the arc-shaped groove. The semi-circular clamping block and the corresponding arc-shaped groove are slidably connected to the T-shaped groove through an arc-shaped T-shaped slide rail to increase the connection effect after the semi-circular clamping block is installed. The arc-shaped T-shaped slide rail and the T-shaped groove are respectively provided with a stop block and a stop groove (not shown in the figure) to prevent the semi-circular clamping block and the arc-shaped groove from separating.

[0042] Through the sliding connection between the second semicircular clamping block 43 and the first semicircular clamping block 42, and the sliding connection between the first semicircular clamping block 42 and the mounting block 41, during the relative movement of the two sets of clamping seats 25, each second semicircular clamping block 43 can be made to contact the annular outer wall of the forged steel support roller, thereby providing a larger clamping area for forged steel support rollers of different sizes and improving the anti-detachment clamping effect.

[0043] The rotation of the semicircular clamp 42 and the semicircular clamp 43 further guides the forged steel support roller, centers it, and precisely assists the upper tip 22 in aligning with the axis of the forged steel support roller. Then, the hydraulic cylinder 14 drives the transverse fixed seat 21 to move down again. Under a large downward squeezing force, the semicircular clamp 43 and the forged steel support roller slide relative to each other, and the free end of the upper tip 22 abuts against the top of the forged steel support roller.

[0044] A vertical fixed seat 33 is fixedly connected inside the water storage tank 17. A lifting screw 34 is rotatably connected inside the vertical fixed seat 33. A lifting motor 35 for driving the lifting screw 34 to rotate is bolted to the vertical fixed seat 33. A lifting block 36 that is threadedly connected to the lifting screw 34 is slidably connected inside the vertical fixed seat 33. The lifting block 36 is fixedly connected to the annular water baffle 31. The hydraulic cylinder 14 drives the clamped and fixed forged steel support roller to move upward. Through the rotation motor 16, the rotating shaft 12 and the rotating plate 13 are used to transfer the clamped forged steel support roller to above the lower center point 18 inside the water storage tank 17.

[0045] Then, the hydraulic cylinder 14 drives the forged steel support roller to descend, so that the bottom of the forged steel support roller abuts against the lower center 18, and the upper center 22 abuts against the top of the forged steel support roller, thus fixing the forged steel support roller in the quenching area. The lifting motor 35 drives the lifting screw 34 to rotate, and the lifting screw 34, together with the lifting block 36, drives the annular water baffle 31 to rise. The heating coil 32 inside the annular water baffle 31 rises on the outside of the forged steel support roller to inductively heat the forged steel support roller. During the rising of the annular water baffle 31, the clamping motor 26, together with the bidirectional screw 24 and the T-shaped slider 23, drives the two sets of clamping seats 25 to move apart, so as to prevent the heating coil 32 from heating the clamping seats 25 and affecting the service life.

[0046] The bottom end of the lifting screw 34 extends through the outside of the vertical fixed base 33 and is fixedly connected to the drive sprocket 37. The driven sprocket 38 is fixedly connected to the lower center point 18. The drive sprocket 37 and the driven sprocket 38 are connected by a chain 39. When the lifting screw 34 rotates, it drives the drive sprocket 37 to rotate, and through the chain 39 and the driven sprocket 38, it drives the lower center point 18 to rotate, thereby driving the fixed forged steel support roller to rotate, thus achieving the effect of uniform heating.

[0047] The annular water baffle 31 has a water outlet cavity 310 inside its side wall, and several water outlet holes 311 connected to the water outlet cavity 310 are opened on the inner side wall of the annular water baffle 31. A water pump 312 is bolted to the bottom of the water storage tank 17, and a water injection hose 313 is fixedly connected between the outlet of the water pump 312 and the water outlet cavity 310. While the heating coil 32 inside the annular water baffle 31 induction heats the forged steel support roller, the water pump 312 draws cooling water from the water storage tank 17 and injects it into the water outlet cavity 310 through the water injection hose 313. Then, it is sprayed onto the heated forged steel support roller through several water outlet holes 311 for immediate water spray quenching treatment to improve the quenching quality.

[0048] Example 2: Please refer to Figures 2-6 As shown, the problem that it is difficult to ensure stable clamping of the forged steel support roller by only driving the two sets of clamping seats to move relative to each other through the bidirectional lead screw can be solved by the following solution;

[0049] In this embodiment, a trapezoidal groove 27 is provided on the side of the clamping base 25 near the upper center point 22. A trapezoidal guide block 28 is slidably connected in the trapezoidal groove 27, and limit pins 29 are symmetrically fixedly connected on both sides of the trapezoidal guide block 28. A limit groove 210 is provided on the inner side wall of the trapezoidal groove 27 and is slidably connected to the corresponding limit pin 29. By the combination of the limit pin 29 and the limit groove 210, and the sliding contact between the inclined surface of the trapezoidal guide block 28 and the trapezoidal groove 27, the trapezoidal guide block 28 and the trapezoidal groove 27 can be effectively prevented from separating.

[0050] A return spring 211 is fixedly connected between the bottom of the trapezoidal guide block 28 and the trapezoidal groove 27. The return spring 211 causes the adaptive clamp 4 to separate from the forged steel support roller and push the trapezoidal guide block 28 to rise and reset. This ensures effective anti-disengagement clamping when the forged steel support roller is clamped again. An adaptive clamp 4 is installed on one side of the trapezoidal guide block 28. After the adaptive clamp 4 is pre-clamped on the forged steel support roller by two sets of clamping seats 25, the hydraulic cylinder 14 drives the two sets of clamping seats 25 to move upward. Through the contact between the semi-circular clamp 43 and the forged steel support roller, as well as the weight of the forged steel support roller itself, the trapezoidal guide block 28 is first driven to slide downward in the corresponding trapezoidal groove 27 and compress the return spring 211.

[0051] With the help of the trapezoidal groove 27 guiding the trapezoidal guide block 28, the trapezoidal guide block 28 is moved towards the forged steel support roller with the adaptive clamp 4. As the trapezoidal guide block 28 continues to descend, the clamping force of the semi-circular clamp 43 on the forged steel support roller is gradually increased, and the clamping is strengthened for a second time, so as to drive the forged steel support roller to rise synchronously, so that the forged steel support roller can achieve stable clamping without slippage during the hoisting and loading process.

[0052] A movable block 44 is fixedly connected to one side of the mounting block 41. A movable groove 212 is provided on the trapezoidal guide block 28, which is slidably connected to the movable block 44. An auxiliary spring 45 is fixedly connected between the movable block 44 and the movable groove 212. Through the cooperation of the movable groove 212, the movable block 44 and the auxiliary spring 45, after the two sets of clamping seats 25 move relative to each other, there is a certain contact friction between the semi-circular clamping block 43 and the forged steel support roller. However, it will not cause a large interference force on the secondary downward movement of the transverse fixed seat 21. As a result, when the clamping seat 25 moves upward, there will be no relative sliding between the semi-circular clamping block 43 and the forged steel support roller.

[0053] A mounting groove 213 communicating with a trapezoidal groove 27 is provided on one side of the clamping seat 25. A push plate 214 is rotatably connected inside the mounting groove 213. An L-shaped slide rail 215 is symmetrically fixedly connected on the side of the clamping seat 25 away from the trapezoidal groove 27. A locking plate 216 is slidably connected between the L-shaped slide rails 215. A push rod 217 slidably connected to the push plate 214 is fixedly connected on the locking plate 216. A plurality of auxiliary locking grooves 218 adapted to the locking plate 216 are equidistantly provided at the bottom of the transverse fixing seat 21 along its length direction.

[0054] As the trapezoidal guide block 28 slides downward, it abuts against one side of the push plate 214, forcing the push plate 214 to deflect. This causes the other side of the push plate 214, in conjunction with the push rod 217, to drive the clamping plate 216 to move upward. The top of the clamping plate 216 is then inserted into the corresponding auxiliary slot 218, further locking the position of the clamping seat 25. This avoids the problem that it is difficult to ensure the stable clamping of the forged steel support roller and reduce the service life of the bidirectional screw 24 if the two sets of clamping seats 25 are moved relative to each other by the bidirectional screw 24 alone.

[0055] After the lower center 18 contacts the forged steel support roller, as the transverse fixed seat 21 continues to descend, and through the contact between the semi-circular clamping block 23 and the forged steel support roller, the trapezoidal guide block 28 is pushed to slide upward in the corresponding trapezoidal groove 27, thereby driving the clamping plate 216 to slide downward. After the position lock of the clamping seat 25 is released, the clamping motor 26 then drives the two sets of clamping seats 25 to move apart.

[0056] Example 3: Please refer to Figures 1-8 As shown, the present invention also proposes a method for using an induction hardening device for the production of forged steel support rolls, comprising the following steps:

[0057] Step 1: Rotating motor 16, in conjunction with rotating shaft 12 and rotating plate 13, drives clamping assembly 2 to rotate to the feeding area of ​​forged steel support roller. Hydraulic cylinder 14 drives transverse fixed seat 21 to move downward, so that two sets of clamping seats 25 are located on both sides of forged steel support roller. Clamping motor 26 drives bidirectional lead screw 24 to rotate, and in conjunction with T-shaped slider 23, forces the two sets of clamping seats 25 to move relative to each other.

[0058] Step 2: Multiple semicircular clamping blocks 2 43, through their sliding connection with semicircular clamping block 1 42 and the sliding connection between semicircular clamping block 1 42 and mounting block 41, cause each semicircular clamping block 2 43 to contact the annular outer wall of the forged steel support roller, thus completing the pre-clamping of the forged steel support roller and forcing the upper center point 22 to coincide with the axis of the forged steel support roller. Then, the hydraulic cylinder 14 drives the transverse fixed seat 21 to move down again, and the semicircular clamping blocks 2 43 and the forged steel support roller slide relative to each other, and the upper center point 22 abuts against the top of the forged steel support roller.

[0059] Step 3: The hydraulic cylinder 14 drives the transverse fixed seat 21 to move upward. During the upward movement, the semi-circular clamping block 23 and the forged steel support roller collide, and the forged steel support roller itself exerts its own weight to drive the trapezoidal guide block 28 to slide downward in the corresponding trapezoidal groove 27 and compress the return spring 211. With the help of the trapezoidal groove 27, the trapezoidal guide block 28 is guided to move towards the forged steel support roller with the adaptive clamp 4 for secondary clamping, further increasing the clamping force on the forged steel support roller, so as to drive the forged steel support roller to move upward synchronously.

[0060] Step 4: As the trapezoidal guide block 28 slides downward, it abuts against one side of the push plate 214, forcing the push plate 214 to deflect. The other side of the push plate 214, combined with the push rod 217, drives the clamping plate 216 to move upward, inserting the top of the clamping plate 216 into the corresponding auxiliary slot 218, further locking the position of the clamping seat 25.

[0061] Step 5: The hydraulic cylinder 14 drives the clamped and fixed forged steel support roller to move upward, and through the rotation motor 16, in conjunction with the rotating shaft 12 and the rotating plate 13, the clamped forged steel support roller is transferred to the upper part of the lower center 18 in the water storage tank 17. Then, the bottom of the forged steel support roller is brought into contact with the lower center 18, and the trapezoidal guide block 28 is pushed to slide upward in the corresponding trapezoidal groove 27, and the clamping plate 216 slides downward. After the position lock of the clamping seat 25 is released, the clamping motor 26, in conjunction with the bidirectional lead screw 24 and the T-shaped slider 23, drives the two sets of clamping seats 25 to move apart. The forged steel support roller is fixed by the joint cooperation of the upper center 22 and the lower center 18.

[0062] Step Six: The lifting motor 35 drives the lifting screw 34 to rotate. The lifting screw 34 not only drives the annular water baffle 31 to rise, but also, in conjunction with the drive sprocket 37, chain 39 and driven sprocket 38, drives the lower center 18 to rotate, thereby driving the forged steel support roller to rotate. During the rising process of the annular water baffle 31, the forged steel support roller is induction heated by the internal heating coil 32. At the same time, the water pump 312 draws cooling water from the water storage tank 17 and injects it into the water outlet chamber 310 through the water injection hose 313. Then, it is sprayed onto the heated forged steel support roller through several water outlet holes 311 for quenching treatment.

[0063] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An induction quenching device for the production of forged steel backup rolls, comprising a base (1), characterized in that, The top side of the base (1) is provided with a lifting plate (11), and a rotating plate (13) is rotatably connected to the lifting plate (11) through a rotating shaft (12). The rotating plate (13) is provided with a clamping assembly (2). The clamping assembly (2) comprises a transverse fixing seat (21) fixedly connected to the rotating plate (13), and a top center of the transverse fixing seat (21) is rotatably connected with an upper center (22). Two sides in the transverse fixing seat (21) are symmetrically and slidably connected with T-shaped sliding blocks (23). The transverse fixing seat (21) is rotatably connected with a bidirectional screw rod (24) which is threadedly connected with the T-shaped sliding blocks (23). The T-shaped sliding blocks (23) are fixedly connected with clamping seats (25). The top of the base (1) is fixedly connected with a water storage tank (17), and the bottom of the water storage tank (17) is rotatably connected with a lower center (18). The water storage tank (17) is provided with a quenching assembly (3). The quenching assembly (3) comprises an annular water retaining cover (31), and the inside of the annular water retaining cover (31) is provided with a heating coil (32). The clamping seat (25) is provided with a trapezoidal groove (27) on one side close to the upper center (22). The trapezoidal groove (27) is slidably connected with a trapezoidal guide block (28), and the two sides of the trapezoidal guide block (28) are fixedly connected with limit pins (29). The inner side wall of the trapezoidal groove (27) is provided with a limit groove (210) which is slidably connected with the corresponding limit pin (29). The bottom of the trapezoidal guide block (28) and the trapezoidal groove (27) are fixedly connected with a return spring (211). One side of the trapezoidal guide block (28) is provided with a self-adapting clamp (4).

2. The induction quenching device for producing a steel support roll according to claim 1, wherein The lifting plate (11) and the base (1) are symmetrically and fixedly provided with hydraulic cylinders (14). The base (1) is fixedly connected with two groups of guide rods (15) which are slidably connected with the lifting plate (11). The lifting plate (11) is bolted with rotating motors (16) for driving the corresponding rotating shafts (12) to rotate. The transverse fixing seat (21) is bolted with clamping motors (26) for driving the bidirectional screw rod (24) to rotate.

3. The induction quenching device for producing a steel support roll according to claim 1, wherein The self-adapting clamp (4) comprises a mounting block (41). One side of the mounting block (41) is provided with an arc-shaped groove one, and the inside of the arc-shaped groove one is slidably connected with a semicircular clamping block one (42). One side of the semicircular clamping block one (42) is provided with an arc-shaped groove two, and the inside of the arc-shaped groove two is slidably connected with a semicircular clamping block two (43).

4. The induction quenching apparatus for producing a steel support roll according to claim 3, characterized in that One side of the mounting block (41) is fixedly connected with a movable block (44). The trapezoidal guide block (28) is provided with a movable groove (212) which is slidably connected with the movable block (44). The movable block (44) and the movable groove (212) are fixedly connected with an auxiliary spring (45).

5. The induction quenching apparatus for producing a steel support roll according to claim 1, characterized in that, One side of the clamping seat (25) is provided with an installation groove (213) communicated with the trapezoidal groove (27), the inside of the installation groove (213) is rotatably connected with a push plate (214), the side of the clamping seat (25) away from the trapezoidal groove (27) is fixedly connected with a L-shaped slide (215) in symmetry, the L-shaped slide (215) is slidably connected with a clamping plate (216) between, and the clamping plate (216) is fixedly connected with a push rod (217) slidably connected with the push plate (214), and the bottom of the transverse fixing seat (21) is equidistantly provided with a plurality of auxiliary clamping grooves (218) adapted to the clamping plate (216) along the length direction.

6. The induction quenching apparatus for producing a steel support roll according to claim 1, characterized in that, The inside of the water storage tank (17) is fixedly connected with a vertical fixing seat (33), the inside of the vertical fixing seat (33) is rotatably connected with a lifting lead screw (34), the vertical fixing seat (33) is bolted with a lifting motor (35) for driving the lifting lead screw (34) to rotate, the inside of the vertical fixing seat (33) is slidably connected with a lifting block (36) threadedly connected with the lifting lead screw (34), and the lifting block (36) is fixedly connected with the annular water retaining cover (31).

7. The induction quenching apparatus for producing a steel support roll according to claim 6, characterized in that The bottom end of the lifting lead screw (34) penetrates to the outside of the vertical fixing seat (33) and is fixedly connected with a driving sprocket (37), the lower center (18) is fixedly connected with a driven sprocket (38), and the driving sprocket (37) and the driven sprocket (38) are drivingly connected through a chain (39).

8. The induction quenching apparatus for producing a steel support roll according to claim 7, characterized in that, The inside of the sidewall of the annular water retaining cover (31) is provided with a water outlet cavity (310), the inner sidewall of the annular water retaining cover (31) is provided with a plurality of water outlet holes (311) communicated with the water outlet cavity (310), and the bottom of the water storage tank (17) is bolted with a water suction pump (312), and the water outlet of the water suction pump (312) is fixedly connected with a water injection hose (313) between the water outlet cavity (310).

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