A pre-scaling descaling device for roughing mills

Abstract

This utility model relates to the field of steel rolling equipment and discloses a pre-descaling device for a roughing mill. It includes a housing fixedly connected to the feed inlet of the roughing mill. Two conveying rollers are rotatably connected to the inner walls of the front and rear sides of the housing. Two mounting frames are installed inside the housing. A spacing adjustment mechanism is provided between the housing and the two mounting frames. A flushing and descaling mechanism is provided between the housing and the two mounting frames. An angle adjustment mechanism is provided on the mounting frames. An opening is provided on one side of the housing. This utility model has the following advantages and effects: the spacing between the high-pressure nozzle and the workpiece can be adjusted, thereby adjusting the descaling impact force of the high-pressure nozzle for better descaling of the workpiece. Furthermore, the flushing angle of the high-pressure nozzle on the flushing pipe can be adjusted to ensure that the high-pressure water flow impacts the workpiece surface at the optimal angle, further improving descaling efficiency and effect.

Description

Technical Field

[0001] This utility model relates to the field of steel rolling equipment technology, and in particular to a pre-descaling device for roughing mills. Background Technology

[0002] During the steel rolling process, iron oxide scale (scaling) forms on the surface of the steel billet after heating. If it is not removed in time, the iron oxide scale will be pressed into the surface of the rolled piece during the subsequent roughing rolling process, affecting product quality and even causing damage to the rolls. Therefore, installing a descaling device before the roughing mill is an important part of the steel rolling production line.

[0003] In related technologies, descaling devices mostly use high-pressure water nozzles with fixed angles, which are difficult to adapt to rolled pieces of different thicknesses. This results in problems such as incomplete descaling and partial omissions. At the same time, it is inconvenient to adjust the distance between the nozzle and the rolled piece, which makes it difficult to adjust the descaling height. Consequently, it is difficult to adjust the descaling impact force according to the actual steel grade required, thus reducing the descaling effect. Therefore, we propose a pre-descaling device for roughing mills to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a pre-descaling device for roughing mills to solve the problems of poor descaling adaptability and poor descaling effect in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a pre-descaling device for a roughing mill, comprising a box fixedly connected to the feed inlet of the roughing mill, two conveying rollers rotatably connected to the inner walls of the front and rear sides of the box, two mounting frames arranged inside the box, a spacing adjustment mechanism arranged between the box and the two mounting frames, a flushing and descaling mechanism arranged between the box and the two mounting frames, an angle adjustment mechanism arranged on the mounting frames, and an opening on one side of the box.

[0006] A further feature of this invention is that the spacing adjustment mechanism includes a drive motor fixedly connected to the front side of the housing, grooves are provided on the inner walls of the front and rear sides of the housing, and a bidirectional lead screw is rotatably connected to the upper and lower inner walls of the grooves. A driven bevel gear is fixedly connected to the top of the bidirectional lead screw, and a drive shaft is fixedly connected to the output shaft of the drive motor. Two active bevel gears are fixedly sleeved on the outer side of the drive shaft, and the two active bevel gears mesh with the corresponding driven bevel gears respectively. Two connecting plates are threaded on the outer sides of the two bidirectional lead screws, and the two connecting plates located on the same horizontal plane are fixedly connected to the front and rear sides of the mounting frame respectively.

[0007] By adopting the above technical solution, the drive motor is started according to the height of the rolled piece. The drive motor drives the drive shaft and the two active bevel gears to rotate synchronously. The two active bevel gears drive the two driven bevel gears and the double-acting screw to rotate synchronously. The two double-acting screws drive the four connecting plates, the two mounting brackets and the four flushing pipes to move closer or further apart, thereby adjusting the distance between the high-pressure nozzle and the rolled piece, and thus adjusting the descaling impact force of the high-pressure nozzle, so as to better descaling the rolled piece.

[0008] A further feature of this invention is that a fixed base is fixedly connected to the front side of the housing, and the drive motor is fixedly connected to the top of the fixed base.

[0009] By adopting the above technical solution, it is convenient to support and fix the drive motor, thereby improving its stability during operation.

[0010] A further feature of this invention is that the four connecting plates are slidably fitted into their respective grooves.

[0011] By adopting the above technical solution, the connecting plate and the mounting bracket can be guided, making their lifting and lowering more stable.

[0012] A further feature of this invention is that the rinsing and descaling mechanism includes a high-pressure pump fixedly connected to the top of the housing and a sealing cover fixedly connected to the rear side of the mounting frame. Two rinsing pipes are rotatably connected to the inner walls of the front and rear sides of the mounting frame, and the rear ends of the two rinsing pipes are connected to the sealing cover. A telescopic pipe is fixedly connected to the bottom of the high-pressure pump, and the telescopic pipe is connected to the two sealing covers. Multiple high-pressure nozzles are fixedly connected to the rinsing pipes. Two connecting pipes are fixedly connected to one side of the telescopic pipe, and the two connecting pipes are respectively connected to the corresponding sealing covers. A water supply pipe is fixedly connected to one side of the high-pressure pump, and a flange is fixedly fitted on the outer side of the water supply pipe.

[0013] By adopting the above technical solution, the high-pressure pump is connected to the water source. The high-pressure pump can draw high-pressure water into the telescopic pipe and two connecting pipes, and finally flow into the two sealing covers and the flushing pipe. Finally, high-pressure water jets are sprayed from multiple high-pressure nozzles to impact the upper and lower surfaces of the strip, thereby achieving the effect of high-pressure flushing and descaling.

[0014] A further feature of this invention is that the angle adjustment mechanism includes a drive gear fixedly sleeved on the outside of the flushing pipe and a cylinder fixedly connected to the front side of the mounting frame. A slider is fixedly connected to the output shaft of the cylinder, and a rack is fixedly connected to the top of the slider. The rack meshes with two drive gears, and both the slider and the rack are slidably connected to the front side of the mounting frame.

[0015] By adopting the above technical solution, the cylinder drives the slider and rack to move laterally, and the rack drives the two drive gears and the flushing pipe to rotate in both directions. This allows the flushing angle of the high-pressure nozzle on the flushing pipe to be adjusted, ensuring that the high-pressure water flow impacts the surface of the rolled piece at the optimal angle, thereby further improving the descaling efficiency and effect.

[0016] A further feature of this invention is that a guide plate is fixedly connected to the bottom inner wall of the box, and a drain pipe is fixedly connected to one side bottom of the box.

[0017] By adopting the above technical solution, it is convenient to discharge sewage.

[0018] The beneficial effects of this utility model are:

[0019] 1. Based on the height of the rolled piece, this utility model drives the drive shaft and two active bevel gears to rotate synchronously via a drive motor. The two active bevel gears drive the two driven bevel gears and the double-acting screw to rotate synchronously. The two double-acting screws drive the four connecting plates, two mounting brackets and four flushing pipes to move closer or further apart, thereby adjusting the distance between the high-pressure nozzle and the rolled piece, and thus adjusting the descaling impact force of the high-pressure nozzle, so as to better descaling the rolled piece.

[0020] 2. This utility model uses a cylinder to drive the slider and rack to move laterally. The rack drives two drive gears and the flushing pipe to rotate in both directions, thereby adjusting the flushing angle of the high-pressure nozzle on the flushing pipe to ensure that the high-pressure water flow impacts the surface of the rolled piece at the optimal angle, further improving the descaling efficiency and effect.

[0021] 3. This utility model connects a high-pressure pump to a water source. The high-pressure pump can draw high-pressure water into the telescopic pipe and two connecting pipes, and finally into the two sealing covers and the flushing pipe. Finally, high-pressure water jets are sprayed from multiple high-pressure nozzles to impact the upper and lower surfaces of the strip, thereby achieving the effect of high-pressure flushing and descaling. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a pre-descaling device for a roughing mill proposed in this utility model;

[0024] Figure 2 This is a cross-sectional view of a pre-descaling device for a roughing mill proposed in this utility model;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure of part A;

[0026] Figure 4 for Figure 2 A schematic diagram of the structure of part B.

[0027] In the diagram, 1. Roughing mill; 2. Housing; 3. Opening; 4. Drain pipe; 5. Spacing adjustment mechanism; 6. Flushing and descaling mechanism; 7. Angle adjustment mechanism; 8. Guide plate; 9. Conveying roller; 51. Fixed base; 52. Drive motor; 53. Mounting bracket; 54. Drive shaft; 55. Driving bevel gear; 56. Driven bevel gear; 57. Groove; 58. Double-acting lead screw; 59. Connecting plate; 61. High-pressure pump; 62. Telescopic pipe; 63. Connecting pipe; 64. Sealing cover; 65. Flushing pipe; 66. High-pressure nozzle; 71. Drive gear; 72. Cylinder; 73. Slider; 74. Rack. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] See Figure 1 — Figure 4 This utility model provides a pre-descaling device for a roughing mill, including a box 2 fixedly connected to the feed inlet of the roughing mill 1. Two conveying rollers 9 are rotatably connected to the inner walls of the front and rear sides of the box 2. Two mounting brackets 53 are provided inside the box 2. A spacing adjustment mechanism 5 is provided between the box 2 and the two mounting brackets 53. A flushing and descaling mechanism 6 is provided between the box 2 and the two mounting brackets 53. An angle adjustment mechanism 7 is provided on the mounting brackets 53. An opening 3 is provided on one side of the box 2.

[0030] Specifically, the spacing adjustment mechanism 5 includes a drive motor 52 fixedly connected to the front side of the housing 2. Grooves 57 are provided on the inner walls of the front and rear sides of the housing 2. Bidirectional lead screws 58 are rotatably connected to the upper and lower inner walls of the grooves 57. A driven bevel gear 56 is fixedly connected to the top of the bidirectional lead screw 58. A drive shaft 54 ​​is fixedly connected to the output shaft of the drive motor 52. Two active bevel gears 55 are fixedly sleeved on the outer side of the drive shaft 54. The two active bevel gears 55 mesh with the corresponding driven bevel gears 56 respectively. Two connecting plates 59 are threaded on the outer side of the two bidirectional lead screws 58. The two connecting plates 59 located on the same horizontal plane are fixedly connected to the front and rear sides of the mounting bracket 53 respectively.

[0031] Specifically, a fixed base 51 is fixedly connected to the front side of the housing 2, and a drive motor 52 is fixedly connected to the top of the fixed base 51.

[0032] Specifically, the four connecting plates 59 are slidably fitted into the corresponding grooves 57.

[0033] Specifically, the flushing and descaling mechanism 6 includes a high-pressure pump 61 fixedly connected to the top of the housing 2 and a sealing cover 64 fixedly connected to the rear side of the mounting bracket 53. Two flushing pipes 65 are rotatably connected to the inner walls of the front and rear sides of the mounting bracket 53. The rear ends of the two flushing pipes 65 are connected to the sealing cover 64. A telescopic pipe 62 is fixedly connected to the bottom of the high-pressure pump 61. The telescopic pipe 62 is connected to the two sealing covers 64. Multiple high-pressure nozzles 66 are fixedly connected to the flushing pipes 65.

[0034] Specifically, one side of the telescopic tube 62 is fixedly connected to two connecting tubes 63, and the two connecting tubes 63 are respectively connected to the corresponding sealing cover 64.

[0035] Specifically, a water supply pipe is fixedly connected to one side of the high-pressure pump 61, and a flange is fixedly fitted on the outside of the water supply pipe.

[0036] Specifically, the angle adjustment mechanism 7 includes a drive gear 71 fixedly sleeved on the outside of the flushing pipe 65, and a cylinder 72 fixedly connected to the front side of the mounting bracket 53. A slider 73 is fixedly connected to the output shaft of the cylinder 72, and a rack 74 is fixedly connected to the top of the slider 73. The rack 74 meshes with two drive gears 71.

[0037] Specifically, both the slider 73 and the rack 74 are slidably connected to the front side of the mounting bracket 53.

[0038] Specifically, a guide plate 8 is fixedly connected to the bottom inner wall of the box 2, and a drain pipe 4 is fixedly connected to one side bottom of the box 2.

[0039] In this invention, after the rolled piece exits the heating furnace, it enters the housing 2 through opening 3. Guided by conveying rollers 9, it enters the roughing mill 1 for roughing. Based on the height of the rolled piece, the drive motor 52 is activated. The drive motor 52 drives the drive shaft 54 ​​and two active bevel gears 55 to rotate synchronously. The two active bevel gears 55 drive the two driven bevel gears 56 and the double-acting lead screw 58 to rotate synchronously. The two double-acting lead screws 58 cause the four connecting plates 59, two mounting brackets 53, and four flushing pipes 65 to move closer or further apart, thereby adjusting the distance between the high-pressure nozzle 66 and the rolled piece, and consequently adjusting the descaling impact force of the high-pressure nozzle 66, for better descaling of the rolled piece. This is achieved through air... The cylinder 72 drives the slider 73 and rack 74 to move laterally. The rack 74 drives the two drive gears 71 and the flushing pipe 65 to rotate in both directions. This allows for adjustment of the flushing angle of the high-pressure nozzles 66 on the flushing pipe 65, ensuring that the high-pressure water flow impacts the surface of the rolled piece at the optimal angle, further improving the descaling efficiency and effect. The telescopic pipe 62 does not obstruct the movement of the mounting frame 53 and the sealing cover 64. The high-pressure pump 61 is connected to the water source and can pump high-pressure water into the telescopic pipe 62 and the two connecting pipes 63, which then flow into the two sealing covers 64 and the flushing pipe 65. Finally, high-pressure water flows are sprayed from multiple high-pressure nozzles 66 to impact the upper and lower surfaces of the rolled piece, thereby achieving the effect of high-pressure flushing and descaling.

Claims

1. A pre-scaling descaling device for a roughing mill, characterized in that, The box (2) is fixedly connected to the feed inlet of the roughing mill (1). Two conveying rollers (9) are rotatably connected to the inner walls of the front and rear sides of the box (2). Two mounting brackets (53) are provided inside the box (2). A spacing adjustment mechanism (5) is provided between the box (2) and the two mounting brackets (53). A flushing and descaling mechanism (6) is provided between the box (2) and the two mounting brackets (53). An angle adjustment mechanism (7) is provided on the mounting brackets (53). An opening (3) is provided on one side of the box (2).

2. The pre-scaling descaling device for a roughing mill according to claim 1, characterized in that: The spacing adjustment mechanism (5) includes a drive motor (52) fixedly connected to the front side of the housing (2). The inner walls of the front and rear sides of the housing (2) are provided with grooves (57). The upper and lower inner walls of the grooves (57) are rotatably connected with bidirectional lead screws (58). The top end of the bidirectional lead screws (58) is fixedly connected with driven bevel gears (56). The output shaft of the drive motor (52) is fixedly connected with a drive shaft (54). Two active bevel gears (55) are fixedly sleeved on the outer side of the drive shaft (54). The two active bevel gears (55) mesh with the corresponding driven bevel gears (56). The outer sides of the two bidirectional lead screws (58) are threaded with two connecting plates (59). The two connecting plates (59) located on the same horizontal plane are fixedly connected to the front and rear sides of the mounting bracket (53).

3. The pre-scaling descaling device for a roughing mill according to claim 2, characterized in that: The front side of the housing (2) is fixedly connected to a mounting base (51), and the drive motor (52) is fixedly connected to the top of the mounting base (51).

4. The pre-scaling descaling device for a roughing mill according to claim 2, characterized in that: The four connecting plates (59) are slidably fitted into the corresponding grooves (57).

5. A pre-scaling descaling device for a roughing mill according to claim 1, characterized in that: The flushing and descaling mechanism (6) includes a high-pressure pump (61) fixedly connected to the top of the housing (2) and a sealing cover (64) fixedly connected to the rear side of the mounting frame (53). Two flushing pipes (65) are rotatably connected to the inner walls of the front and rear sides of the mounting frame (53). The rear ends of the two flushing pipes (65) are connected to the sealing cover (64). The bottom of the high-pressure pump (61) is fixedly connected to a telescopic pipe (62). The telescopic pipe (62) is connected to the two sealing covers (64). Multiple high-pressure nozzles (66) are fixedly connected to the flushing pipes (65).

6. The pre-scaling descaling device for a roughing mill according to claim 5, characterized in that: Two connecting pipes (63) are fixedly connected to one side of the telescopic tube (62), and the two connecting pipes (63) are respectively connected to the corresponding sealing cover (64).

7. A pre-scaling descaling device for a roughing mill according to claim 5, characterized in that: A water supply pipe is fixedly connected to one side of the high-pressure pump (61), and a flange is fixedly fitted on the outside of the water supply pipe.

8. A pre-scaling descaling device for a roughing mill according to claim 5, characterized in that: The angle adjustment mechanism (7) includes a drive gear (71) fixedly sleeved on the outside of the flushing pipe (65) and a cylinder (72) fixedly connected to the front side of the mounting bracket (53). A slider (73) is fixedly connected to the output shaft of the cylinder (72), and a rack (74) is fixedly connected to the top of the slider (73). The rack (74) meshes with the two drive gears (71).

9. A pre-scaling descaling device for a roughing mill according to claim 8, characterized in that: The slider (73) and the rack (74) are both slidably connected to the front side of the mounting bracket (53).

10. A pre-scaling descaling device for a roughing mill according to claim 1, characterized in that: A guide plate (8) is fixedly connected to the bottom inner wall of the box (2), and a sewage pipe (4) is fixedly connected to one side bottom of the box (2).

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