Rapid and uniform cooling device for hot rolling of seamless steel pipe

Abstract

The utility model discloses a rapid and uniform cooling device for seamless steel pipe hot rolling, and relates to the technical field of hot-rolled steel pipe cooling. The device comprises a working table, second transmission rods distributed at equal intervals are rotationally arranged on the outer wall of the working table, symmetrically-arranged rotating wheels are fixedly arranged at the positions, close to the working table, of the second transmission rods, and conveying belts used in cooperation with the rotating wheels are arranged on the outer surfaces of the two rotating wheels. Fixing seats distributed at equal intervals are fixedly arranged on the outer surface of the conveying belt, springs are fixedly arranged on the bottom surfaces in the fixing seats, pressing toothed plates are fixedly arranged at the upper ends of the springs, and third gears meshed with the pressing toothed plates are rotatably arranged on the portions, close to the two sides of the springs, of the pressing toothed plates; and a first rotating rod is fixedly arranged in the center of the side wall of the third gear in a penetrating connection mode, the first rotating rod is rotationally connected with the fixing base, and the problem that the seamless steel pipe is difficult to fix when the cooling device works is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot-rolled steel pipe cooling, in particular to a seamless steel pipe hot-rolling rapid and uniform cooling device. Background Art

[0002] With the development of the industry and the increasing demand for high-quality steel pipes, advanced cooling devices have become necessary. They play a key role in the hot-rolling process of steel pipes, can effectively control the cooling speed and uniformity, and improve the quality of steel pipes. With the continuous development of technology, the cooling devices are also constantly optimized and improved.

[0003] Most of the existing hot-rolled steel pipe cooling devices have obvious limitations. It is very difficult to fix the steel pipes during cooling, and collisions may occur during cooling, which is easy to cause deformation. In addition, the surface moisture of the cooled steel pipes generally cannot be cleaned in time. If the moisture is not processed in time, it will increase the probability of rusting of the steel pipes, affecting the appearance quality and service life. Summary of the Utility Model

[0004] In order to solve the problems that it is difficult to fix the cooling device during cooling and the surface moisture of the hot-rolled steel pipe cannot be cleaned in time after cooling; the purpose of the utility model is to provide a seamless steel pipe hot-rolling rapid and uniform cooling device.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: A seamless steel pipe hot-rolling rapid and uniform cooling device, including a workbench. A second transmission rod is rotatably arranged on the outer wall of the workbench at equally spaced intervals. A symmetrically arranged rotating wheel is fixedly arranged on the second transmission rod near the workbench. A conveyor belt cooperating with the rotating wheel is arranged on the outer surface of the two rotating wheels. Fixed seats are fixedly arranged on the outer surface of the conveyor belt at equally spaced intervals. A spring is fixedly arranged on the bottom surface inside the fixed seat. A pressing tooth plate is fixedly arranged at the upper end of the spring. Third gears meshing with the pressing tooth plate are rotatably arranged on both sides of the pressing tooth plate near the spring. A first rotating rod is fixedly arranged at the center of the side wall of the third gear and penetrates through and is connected. The first rotating rod is rotatably connected with the fixed seat. Connecting rods are fixedly arranged on both sides of the first rotating rod near the third gear. A second rotating rod is fixedly connected to the end of the connecting rod far from the third gear. A pulley is rotatably arranged at the midpoint of the second rotating rod. A water tank is fixedly arranged at one end of the workbench. A water pump is fixedly arranged on the side wall of the water tank near the workbench. The water pump is fixedly connected with a spray pipe at the end far from the water tank.

[0006] Preferably, a ramp is fixedly arranged at one end of the workbench far away from the water tank. A hydraulic cylinder is fixedly arranged at one end of the ramp far away from the workbench. A hydraulic rod is fixedly arranged at one end of the hydraulic cylinder close to the ramp. A sponge block corresponding to the hydraulic rod is fixedly arranged at one end of the ramp far away from the workbench. A placement groove is formed at one end of the ramp close to the hydraulic cylinder.

[0007] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0008] 1. When placing the seamless steel pipe on the pressing tooth plate, the downward pressure of the seamless steel pipe on the pressing tooth plate causes the pressing tooth plate to move downward. Through the rotation of the third gear, the pulley on the connecting rod is squeezed inward to fix the seamless steel pipe, reducing the operation steps to complete rapid fixation and reducing the deformation caused by collision.

[0009] 2. When the seamless steel pipe rolls to the placement groove through the ramp after cooling, the seamless steel pipe is pushed out of the sponge block through the action of the hydraulic cylinder and the hydraulic rod, thereby treating the moisture on the surface of the seamless steel pipe, reducing the probability of the seamless steel pipe rusting, improving the appearance and quality of the seamless steel pipe, and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model 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 utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0011] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0012] Figure 2 It is a schematic diagram of the structure of the present utility model Figure 1 Schematic diagram of the split structure.

[0013] Figure 3 It is a schematic diagram of the structure of the present utility model Figure 1 Enlarged schematic diagram of the split structure at A in the present utility model.

[0014] Figure 4 It is a schematic diagram of the structure of the present utility model Figure 1 Enlarged schematic diagram at B in the present utility model.

[0015] In the figure: 1, workbench; 11, drain hole; 2, water pump; 21, water tank; 22, spray pipe; 23, support leg; 24, first placement table; 3, second placement table; 31, motor; 32, first transmission rod; 33, first gear; 34, second gear; 35, second transmission rod; 36, rotating wheel; 37, conveyor belt; 38, fixed seat; 4, spring; 41, pressing tooth plate; 42, support block; 43, chute; 44, first rotating rod; 45, third gear; 46, connecting rod; 47, pulley; 48, second rotating rod; 5, ramp; 51, hydraulic cylinder; 52, hydraulic rod; 53, sponge block; 54, placement groove. Specific implementation mode

[0016] 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.

[0017] Embodiment: As Figures 1-4As shown in the figure, the utility model provides a seamless steel pipe hot rolling rapid and uniform cooling device, which includes a workbench 1. On the outer wall of the workbench 1, second transmission rods 35 are rotatably arranged at equal intervals. Near the workbench 1, the second transmission rods 35 are fixedly provided with symmetrically arranged rotating wheels 36. On the outer surfaces of the two rotating wheels 36, there is a conveyor belt 37 that cooperates with the rotating wheels 36. On the outer surface of the conveyor belt 37, fixing seats 38 are fixedly arranged at equal intervals. On the bottom surface inside the fixing seat 38, a spring 4 is fixedly arranged. At the upper end of the spring 4, a pressing tooth plate 41 is fixedly arranged. On both sides of the pressing tooth plate 41 near the spring 4, third gears 45 that mesh with the pressing tooth plate 41 are rotatably arranged. At the center of the side wall of the third gear 45, a first rotating rod 44 is fixedly arranged through connection. The first rotating rod 44 is rotatably connected to the fixing seat 38. On both sides of the first rotating rod 44 near the third gear 45, connecting rods 46 are fixedly arranged. At the end of the connecting rod 46 far from the third gear 45, there is a second rotating rod 48 fixedly connected. At the midpoint of the second rotating rod 48, a pulley 47 is rotatably arranged. At one end of the workbench 1, a water tank 21 is fixedly arranged. On the side wall of the water tank 21 near the workbench 1, a water pump 2 is fixedly arranged. At the end of the water pump 2 far from the water tank 21, a spray pipe 22 is fixedly connected. On the side wall of the workbench 1, a second placement table 3 is fixedly arranged. On the upper surface of the second placement table 3, a motor 31 is fixedly arranged. On one side of the motor 31, a first transmission rod 32 is rotatably arranged. Near the motor 31, the first transmission rod 32 is fixedly provided with symmetrically arranged first gears 33. On the outer surface of the first gears 33, second gears 34 that mesh are rotatably arranged. The second gears 34 are fixedly connected to the second transmission rods 35. On the side wall of the pressing tooth plate 41, a chute 43 is opened. Inside the chute 43, a support block 42 is arranged to slide up and down. The support block 42 is fixedly connected to the fixing seat 38. The fixing seat 38 is made of flexible material. On the side wall of the water tank 21 near the workbench 1, a first placement table 24 corresponding to the water pump 2 is fixedly arranged. On the workbench 1, drainage holes 11 are penetrated and arranged at equal intervals. At one end of the spray pipe 22 near the slope 5, a support leg 23 is penetrated and connected. During work, the hot-rolled seamless steel pipe is placed on the pressing tooth plate 41. The pressing tooth plate 41 will be pressed down by the pressure of the seamless steel pipe. The pressing tooth plate 41 moves downward. Through the rotation of the third gear 45, the pulley 47 on the connecting rod 46 is squeezed inward to fix the seamless steel pipe. At the same time, the water pump 2 on the first placement table 24 starts to work, and the spray pipe 22 supported by the support leg 23 starts to spray water. The conveyor belt 37 drives the fixing seat 38 to start rotating. The fixing seat 38 can deform according to the shape of the conveyor belt 37, thereby driving the steel pipe to move. At this time, seamless steel pipes are continuously placed, and the cooled water is discharged through the drainage holes 11.

[0018] At one end of the workbench 1 away from the water tank 21, a ramp 5 is fixedly arranged. At one end of the ramp 5 away from the workbench 1, a hydraulic cylinder 51 is fixedly arranged. At one end of the hydraulic cylinder 51 close to the ramp 5, a hydraulic rod 52 is fixedly arranged. At one end of the ramp 5 away from the workbench 1, a sponge block 53 corresponding to the hydraulic rod 52 is fixedly arranged. At one end of the ramp 5 close to the hydraulic cylinder 51, a placement groove 54 is formed. The cooled seamless steel pipe rolls down the ramp 5 and reaches the placement groove 54. At the same time, under the action of the hydraulic cylinder 51, the hydraulic rod 52 pushes the seamless steel pipe forward, enabling the seamless steel pipe to pass through the sponge block 53, thereby removing the water on the surface of the seamless steel pipe.

[0019] Working principle: During operation, the hot-rolled seamless steel pipe is placed on the pressing tooth plate 41. The pressing tooth plate 41 will be pressed down under the pressure of the seamless steel pipe. When the pressing tooth plate 41 moves downward, through the rotation of the third gear 45, the pulley 47 on the connecting rod 46 is squeezed inward to fix the seamless steel pipe. At the same time, the water pump 2 on the first placement table 24 starts to work, and several spray pipes 22 spray out cooling water, thus starting the water spraying operation on the surface of the seamless steel pipe. During this process, the motor 31 on the second placement table 3 starts and drives the conveyor belt 37 to drive the fixing seat 38 to move at a slow speed, thereby driving the seamless steel pipe to move forward slowly. Such a setting extends the contact time between the seamless steel pipe and the cooling water, enabling the seamless steel pipe to be fully cooled. At this time, continue to place the seamless steel pipe, and the used cooling water is discharged through the drain hole 11.

[0020] The cooled seamless steel pipe continuously rolls down along the ramp 5 and finally accurately falls into the placement groove 54. At the same moment, under the driving force generated by the hydraulic cylinder 51, the hydraulic rod 52 starts to perform its due pushing function, pushing the seamless steel pipe forward. During this forward movement, the seamless steel pipe directly passes through the sponge block 53, thereby achieving the purpose of effectively removing the moisture on the surface of the seamless steel pipe.

[0021] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and its equivalent technologies, the present utility model also intends to include these changes and modifications.

Claims

1. A device for rapid and uniform cooling of hot-rolled seamless steel pipes, comprising a workbench (1), characterized in that: A second transmission rod (35) is rotatably provided on the outer wall of the workbench (1) and is distributed at equal intervals. The second transmission rod (35) is fixedly provided with symmetrically arranged rotating wheels (36) near the workbench (1). The outer surfaces of the two rotating wheels (36) are provided with conveyor belts (37) used in conjunction with the rotating wheels (36). The outer surface of the conveyor belt (37) is fixedly provided with fixed seats (38) distributed at equal intervals. A spring (4) is fixedly provided on the bottom surface of the fixed seat (38). A pressing tooth plate (41) is fixedly provided on the upper end of the spring (4). The pressing tooth plate (41) is rotatably provided with a third gear (45) meshing with the pressing tooth plate (41) on both sides near the spring (4). The third gear ( A first rotating rod (44) is fixedly provided at the center of the side wall of the workbench (1), the first rotating rod (44) is rotatably connected to the fixed seat (38), connecting rods (46) are fixedly provided on both sides of the first rotating rod (44) near the third gear (45), the connecting rod (46) is provided with a second rotating rod (48) fixedly connected at one end away from the third gear (45), a pulley (47) is rotatably provided at the midpoint of the second rotating rod (48), a water tank (21) is fixedly provided at one end of the workbench (1), a water pump (2) is fixedly provided on the side wall of the water tank (21) near the workbench (1), and a spray pipe (22) is fixedly connected to the water pump (2) at one end away from the water tank (21).

2. A device for rapid and uniform cooling of hot-rolled seamless steel pipes as claimed in claim 1, characterized in that: The workbench (1) is fixedly provided with a slope (5) at one end away from the water tank (21); the slope (5) is fixedly provided with a hydraulic cylinder (51) at one end away from the workbench (1); the hydraulic cylinder (51) is fixedly provided with a hydraulic rod (52) at one end close to the slope (5); the slope (5) is fixedly provided with a sponge block (53) corresponding to the hydraulic rod (52) at one end away from the workbench (1); and the slope (5) is provided with a placement groove (54) at one end close to the hydraulic cylinder (51).

3. A device for rapid and uniform cooling of hot-rolled seamless steel pipes as claimed in claim 1, characterized in that: A second placement platform (3) is fixedly arranged on the side wall of the workbench (1); a motor (31) is fixedly arranged on the upper surface of the second placement platform (3); a first transmission rod (32) is rotatably arranged on one side of the motor (31); a symmetrically arranged first gear (33) is fixedly arranged on the first transmission rod (32) near the motor (31); a meshing second gear (34) is rotatably arranged on the outer surface of the first gear (33); and the second gear (34) is fixedly connected to the second transmission rod (35).

4. A device for rapid and uniform cooling of hot-rolled seamless steel pipes as claimed in claim 1, characterized in that: A sliding groove (43) is provided on the side wall of the pressing tooth plate (41), and a support block (42) is provided in the sliding groove (43) and is slidably connected up and down. The support block (42) is fixedly connected to the fixing seat (38).

5. The device for rapid and uniform cooling of hot-rolled seamless steel pipes according to claim 1, characterized in that: The fixing seat (38) is made of flexible material.

6. A device for rapid and uniform cooling of hot-rolled seamless steel pipes as claimed in claim 1, characterized in that: The water tank (21) is fixedly provided with a first placement platform (24) corresponding to the water pump (2) on a side wall close to the workbench (1).

7. A device for rapid and uniform cooling of hot-rolled seamless steel pipes as claimed in claim 1, characterized in that: The workbench (1) is provided with drainage holes (11) distributed at equal intervals.

8. A device for rapid and uniform cooling of hot-rolled seamless steel pipes as claimed in claim 1, characterized in that: The spray pipe (22) is connected to a support leg (23) at one end close to the slope (5).

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