Silicon Steel Continuous Annealing Unit Furnace Roll Replacement Device and Replacement Method

Abstract

The present invention discloses a furnace roll replacement device for a silicon steel continuous annealing unit, which includes a lower base, a bearing seat, a guide wheel arranged on the bearing seat and used for supporting the carbon sleeve roll, a fixture movably arranged on the bearing seat and used for clamping the carbon sleeve roll, and an adjusting mechanism arranged on the lower base and used for adjusting the height of the bearing seat. A plurality of guide wheels are provided and all the guide wheels are arranged along the length direction of the carbon sleeve roll. The furnace roll replacement device for the silicon steel continuous annealing unit of the present invention can achieve rapid and convenient replacement of the carbon sleeve roll, improve the replacement efficiency of the carbon sleeve roll, and has less manual intervention. Almost all opportunities for people to touch the carbon sleeve roll are eliminated, completely eliminating the possible harm caused by the high-temperature carbon sleeve roll and avoiding damage to the carbon sleeve roll during the replacement process. The present invention also discloses a method for replacing the furnace roll of a silicon steel continuous annealing unit.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical equipment auxiliary tools. Specifically, the present invention relates to a furnace roll replacement device and a replacement method for a silicon steel continuous annealing unit. Background Art

[0002] On a horizontal continuous annealing unit for producing silicon steel, the furnace rolls in the annealing furnace generally use carbon sleeve rolls. In high-temperature conditions, carbon sleeve oxidation and nodulation is an unavoidable industry problem, which will cause batch pitting defects on the strip surface and seriously affect the finished product quality. The current solution is to use existing technologies to identify the specific nodulated carbon sleeve furnace rolls, and then replace the nodulated carbon sleeve rolls at high temperature. Since the surface temperature of the carbon sleeve is as high as above 500 - 600 degrees Celsius, manual replacement is very unsafe and inefficient. During the replacement process, it is easy to cause damage such as collision fragmentation and scratching to the new carbon sleeve. What is needed is a safe, effective, fast and convenient special replacement tool. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a furnace roll replacement device for a silicon steel continuous annealing unit, aiming to improve the replacement efficiency of carbon sleeve rolls.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows: A furnace roll replacement device for a silicon steel continuous annealing unit includes a lower base, a bearing seat, guide wheels provided on the bearing seat and used to support the carbon sleeve roll, a clamp movably provided on the bearing seat and used to clamp the carbon sleeve roll, and an adjusting mechanism provided on the lower base and used to adjust the height of the bearing seat. A plurality of guide wheels are provided and all the guide wheels are arranged along the length direction of the carbon sleeve roll.

[0005] The bearing seat includes an upper cross beam connected to the adjusting mechanism, a guide rail provided on the upper cross beam and used to guide the clamp, and a guide wheel shaft provided on the upper cross beam. The guide wheels are provided on the guide wheel shaft. Rollers are provided on the clamp and the rollers are arranged on the guide rail. The axis of the guide wheel shaft is perpendicular to the length direction of the guide rail.

[0006] The guide wheel shaft is located below the guide rail.

[0007] The adjusting mechanism includes a screw sleeve provided on the lower base, a screw rod provided in the screw sleeve and threadedly connected to the screw sleeve, and a hand wheel connected to the screw rod. The screw rod is connected to the bearing seat.

[0008] Two adjusting mechanisms are provided, and the two adjusting mechanisms are on the same straight line parallel to the length direction of the bearing seat.

[0009] The present invention also provides a method for replacing the furnace rolls of a silicon steel continuous annealing unit, which uses the above-mentioned device for replacing the furnace rolls of a silicon steel continuous annealing unit and includes the following steps:

[0010] S1. Pull out one end of the old carbon sleeve roll from the annealing furnace;

[0011] S2. Move the device for replacing the furnace rolls of a silicon steel continuous annealing unit to a designated position, and connect the device for replacing the furnace rolls of a silicon steel continuous annealing unit to the annealing furnace to fix the device;

[0012] S3. Adjust the height of the bearing seat through the adjusting mechanism so that the center of the fixture is aligned with the center of the old carbon sleeve roll;

[0013] S4. The fixture clamps the old carbon sleeve roll;

[0014] S5. Use a sleeve to push the old carbon sleeve roll out of the annealing furnace, and the old carbon sleeve roll pushes the fixture to move synchronously on the bearing seat;

[0015] S6. Place the new carbon sleeve roll on the guide wheel, and then the fixture clamps one end of the new carbon sleeve roll;

[0016] S7. Push the fixture to move, and the fixture pushes the new carbon sleeve roll into the annealing furnace;

[0017] S8. After the new carbon sleeve roll extends into the annealing furnace by a set length, put the sleeve on the other end of the new carbon sleeve roll, and the sleeve provides auxiliary support and guidance for the new carbon sleeve roll until the new carbon sleeve roll is completely in place.

[0018] The device for replacing the furnace rolls of a silicon steel continuous annealing unit of the present invention can achieve rapid and convenient replacement of the carbon sleeve roll, improve the replacement efficiency of the carbon sleeve roll, with less manual intervention, almost eliminating all opportunities for people to touch the carbon sleeve roll, completely eliminating the possible harm caused by the high-temperature carbon sleeve roll and avoiding damage to the carbon sleeve roll during the replacement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] This specification includes the following drawings, and the shown contents are respectively:

[0020] Figure 1 is a schematic structural diagram of the device for replacing the furnace rolls of a silicon steel continuous annealing unit of the present invention;

[0021] Figure 2 is a schematic diagram of the extraction state of the old carbon sleeve roll;

[0022] Figure 3 is a schematic diagram of the installation state of the new carbon sleeve roll;

[0023] The labels in the figure are: 1. Guide rail; 2. Roller; 3. Upper cross beam; 4. Lower base; 5. Carbon sleeve roll; 6. Jacket; 7. Support shaft; 8. Guide wheel shaft; 9. Guide wheel; 10. Lead screw; 11. Hand wheel; 12. Caster; 13. Set screw; 14. Bolt; 15. Counterweight; 16. Annealing furnace; 17. Nut sleeve; 18. Sleeve. Detailed implementation manner

[0024] The following is a more detailed description of the specific implementation manner of the present invention by referring to the accompanying drawings and describing the embodiments, aiming to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitate its implementation.

[0025] As Figures 1 to 3 shown, the present invention provides a roll replacement device for a silicon steel continuous annealing unit, including a lower base 4, a bearing seat, a guide wheel 9 arranged on the bearing seat and used for supporting the carbon sleeve roll, a fixture movably arranged on the bearing seat and used for clamping the carbon sleeve roll, and an adjusting mechanism arranged on the lower base 4 and used for adjusting the height of the bearing seat. A plurality of guide wheels 9 are provided and all the guide wheels 9 are arranged along the length direction of the carbon sleeve roll.

[0026] Specifically, as Figures 1 to 3 shown, four casters 12 are arranged at the bottom of the lower base 4. The four casters 12 are distributed in a rectangle, and the four casters 12 support the lower base 4 and enable the entire replacement device to move on the ground. The bearing seat includes an upper cross beam 3 connected to the adjusting mechanism, a guide rail 1 arranged on the upper cross beam 3 and used for guiding the fixture, and a guide wheel shaft 8 arranged on the upper cross beam 3. The guide wheel 9 is arranged on the guide wheel shaft 8. Rollers 2 are arranged on the fixture, and the rollers 2 are arranged on the guide rail 1. The axis of the guide wheel shaft 8 is perpendicular to the length direction of the guide rail 1. The upper cross beam 3 is located above the lower base 4, the upper cross beam 3 is horizontally arranged, the upper cross beam 3 has a certain length and the length direction of the upper cross beam 3 is parallel to the first direction. The first direction is the horizontal direction. The upper cross beam 3 is a structure with a U-shaped cross section. The guide rail 1, the fixture and the guide wheel 9 are arranged in the inner cavity of the upper cross beam 3. Openings are arranged on the top surface and both ends in the length direction of the upper cross beam 3. Two parallel guide rails 1 are arranged, and the length direction of the guide rails 1 is parallel to the first direction. The two guide rails 1 are on the same straight line parallel to the second direction. The second direction is the horizontal direction and the second direction is perpendicular to the first direction. The axis of the guide wheel shaft 8 is parallel to the second direction. The guide wheel shaft 8 provides a supporting effect on the guide wheel 9. Each guide wheel 9 is respectively installed on a guide wheel shaft 8 through a bearing. The guide wheel shaft 8 is located below the guide rail 1. All the guide wheels 9 are equidistantly distributed along the first direction. All the guide wheels 9 cooperate to support the carbon sleeve roll and keep the carbon sleeve roll in a state parallel to the first direction, improving the stability when the carbon sleeve roll moves.

[0027] As Figures 1 to 3 shown, the adjusting mechanism includes a screw sleeve 17 disposed on the lower base 4, a lead screw 10 disposed in the screw sleeve 17 and threadedly connected to the screw sleeve 17, and a hand wheel 11 connected to the lead screw 10. The lead screw 10 is connected to the bearing seat. The screw sleeve 17 is vertically disposed, below the upper cross beam 3. The screw sleeve 17 is fixedly installed on the lower base 4. The lead screw 10 is inserted into the central hole of the screw sleeve 17. The outer surface of the lead screw 10 is provided with an external thread, and the central hole of the screw sleeve 17 is a threaded hole. The lower end of the lead screw 10 is fixedly connected to the hand wheel 11, and the upper end of the lead screw 10 is connected to the upper cross beam 3. The upper end of the lead screw 10 is located at the middle position in the width direction of the upper cross beam 3. The width direction of the upper cross beam 3 is parallel to the second direction. When it is necessary to adjust the height of the bearing seat, rotate the hand wheel 11. The hand wheel 11 drives the lead screw 10 to rotate synchronously, and the lead screw 10 moves in the vertical direction. The lead screw 10 drives the bearing seat to rise and fall, thereby realizing the adjustment of the height position of the bearing seat.

[0028] As Figures 1 to 3 shown, in this embodiment, two adjusting mechanisms are provided. The two adjusting mechanisms are on the same straight line parallel to the length direction of the bearing seat to realize the adjustment of the front and rear heights of the bearing seat and the overall up and down movement.

[0029] As Figures 1 to 3 shown, preferably, a counterweight 15 is disposed in the lower base 4 to increase the weight of the lower part of the replacement device, prevent the center of gravity of the device from being unstable and tilting when loaded, and improve the stability of the replacement device.

[0030] As Figures 1 to 3 shown, preferably, the fixture mainly includes a collet 6 and a setscrew 13 threadedly connected to the collet 6. The collet 6 has an internal threaded hole for the setscrew 13 to insert. The setscrew 13 has an external thread. The collet 6 is a circular tubular member with both ends open and hollow inside. The central hole of the collet 6 is a circular hole. The collet 6 is fixedly connected to two parallel support shafts 7. The two support shafts 7 are arranged in sequence along the length direction of the collet 6. The axis of the collet 6 is parallel to the length direction of the upper cross beam 3. Both ends of the support shaft 7 are respectively connected to two rollers 2. The rollers 2 roll along the guide rail 1. The collet 6 is located at the middle position between the two guide rails 1. The fixture is used to clamp the end of the old carbon sleeve roller outside the annealing furnace. After the end of the carbon sleeve roller is inserted into the central hole of the collet 6, then the setscrew 13 is screwed into the internal threaded hole on the collet 6. The setscrew 13 applies a radial pressing force to the end of the carbon sleeve roller. The setscrew 13 can fasten the end of the carbon sleeve roller on the collet 6, connecting the fixture and the carbon sleeve roller into one body.

[0031] As Figures 1 to 3As shown in the figure, the present invention also provides a method for replacing the furnace rolls of a silicon steel continuous annealing unit. Using the furnace roll replacement device of the above structure for the silicon steel continuous annealing unit, the method includes the following steps:

[0032] S1. Pull out one end of the old carbon sleeve roll from the annealing furnace;

[0033] S2. Move the furnace roll replacement device of the silicon steel continuous annealing unit to the designated position, and connect the furnace roll replacement device of the silicon steel continuous annealing unit to the annealing furnace to fix the furnace roll replacement device of the silicon steel continuous annealing unit;

[0034] S3. Adjust the height of the bearing seat through the adjusting mechanism so that the center of the fixture is aligned with the center of the old carbon sleeve roll;

[0035] S4. The fixture clamps the old carbon sleeve roll;

[0036] S5. Use the sleeve 18 to push the old carbon sleeve roll out of the annealing furnace, and the old carbon sleeve roll pushes the fixture to move synchronously on the bearing seat;

[0037] S6. Place the new carbon sleeve roll on the guide wheel 9, and then the fixture clamps one end of the new carbon sleeve roll;

[0038] S7. Push the fixture to move, and the fixture pushes the new carbon sleeve roll into the annealing furnace;

[0039] S8. After the new carbon sleeve roll extends into the annealing furnace by a set length, put the sleeve 18 on the other end of the new carbon sleeve roll, and the sleeve 18 provides auxiliary support and guidance for the new carbon sleeve roll until the new carbon sleeve roll is completely in place.

[0040] In the above step S1, after the carbon sleeve roll in the annealing furnace is damaged and needs to be replaced, one end of the old carbon sleeve roll needs to be pulled out from the annealing furnace so that the fixture can clamp the old carbon sleeve roll.

[0041] In the above step S2, move the furnace roll replacement device of the silicon steel continuous annealing unit to one side of the annealing furnace, and then use bolts to fix one end of the upper cross beam 3 on the annealing furnace to fix the furnace roll replacement device of the silicon steel continuous annealing unit and ensure the stability of the replacement device. Connecting the furnace roll replacement device of the silicon steel continuous annealing unit and the annealing furnace with bolts is convenient for disassembly and assembly.

[0042] In the above step S3, rotate the handwheel 11 to adjust the height of the bearing seat. The bearing seat drives the fixture to lift and lower synchronously, and finally align the center of the clamping sleeve 6 with the center of the old carbon sleeve roll. At this time, the center of the clamping sleeve 6 and the center of the old carbon sleeve roll are on the same horizontal line parallel to the first direction.

[0043] In the above-mentioned step S4, the end of the old carbon sleeve roll located outside the annealing furnace is clamped by a fixture, and the end of the carbon sleeve roll is fastened to the jacket 6 with a setscrew 13, so that the fixture and the old carbon sleeve roll are connected into one body. The setscrew 13 is threadedly connected to the jacket 6. The jacket 6 has an internal threaded hole for the setscrew 13 to insert. After the setscrew 13 is screwed into the internal threaded hole on the jacket 6, the end of the setscrew 13 contacts the end outside the annealing furnace, and the setscrew 13 applies a radial pressing force to the end of the old carbon sleeve roll, so that the end of the old carbon sleeve roll is fixed inside the jacket 6.

[0044] In the above-mentioned step S5, the sleeve 18 used has a certain length, and a round hole for the carbon sleeve roll to insert is provided at the center of the sleeve 18. One end of the old carbon sleeve roll is clamped by a fixture, and the sleeve 18 is manually sleeved on the other end of the old carbon sleeve roll. Then, the sleeve 18 is used to push the old carbon sleeve roll, and the old carbon sleeve roll pushes the fixture to move synchronously on the bearing seat. The fixture moves towards a position away from the annealing furnace, and finally the old carbon sleeve roll is pushed out of the annealing furnace. After the old carbon sleeve roll is pushed out, the old carbon sleeve roll is disassembled from the fixture. The setscrew 13 is loosened, and then the old carbon sleeve roll is pulled out from the jacket 6 to complete the disassembly of the old carbon sleeve roll.

[0045] In the above-mentioned step S6, the new carbon sleeve roll is placed on the furnace roll replacement device of the silicon steel continuous annealing unit, and the guide wheel 9 provides support for the new carbon sleeve roll, so that the new carbon sleeve roll is in a state parallel to the first direction. Then, one end of the new carbon sleeve roll is clamped by the fixture.

[0046] In the above-mentioned step S7, the fixture is pushed towards a position close to the annealing furnace, and the fixture drives the new carbon sleeve roll to move synchronously. The new carbon sleeve roll is gradually pushed into the annealing furnace by the fixture.

[0047] In the above-mentioned step S8, after the new carbon sleeve roll extends into the annealing furnace by a certain length, the sleeve 18 is manually sleeved on the other end of the new carbon sleeve roll. The sleeve 18 provides auxiliary support and guidance for the new carbon sleeve roll, and the fixture continues to be pushed to move. The fixture continues to push the new carbon sleeve roll into the annealing furnace until the new carbon sleeve roll is completely in place. Since the new carbon sleeve roll has a certain length, the use of the sleeve ensures the stable movement of the new carbon sleeve roll during the installation process and avoids damage to the new carbon sleeve roll.

[0048] The present invention has been described exemplarily in combination with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned manner. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present invention; or without improvement, the above-mentioned concept and technical solution of the present invention are directly applied to other occasions, they are all within the protection scope of the present invention.

Claims

1. The roll changing device for the silicon steel continuous annealing unit is characterized in that It includes a lower base, a bearing seat, guide wheels arranged on the bearing seat and used to support the carbon sleeve roller, a fixture movably arranged on the bearing seat and used to clamp the carbon sleeve roller, and an adjusting mechanism arranged on the lower base and used to adjust the height of the bearing seat. A plurality of guide wheels are provided and all the guide wheels are arranged along the length direction of the carbon sleeve roller; The bearing seat includes an upper cross beam connected to the adjusting mechanism, guide rails arranged on the upper cross beam and used to guide the fixture, and guide wheel shafts arranged on the upper cross beam. The guide wheels are arranged on the guide wheel shafts. Rollers are arranged on the fixture and the rollers are arranged on the guide rails. The axis of the guide wheel shaft is perpendicular to the length direction of the guide rail; The upper cross beam is located above the lower base. The upper cross beam is horizontally arranged. The upper cross beam has a certain length and the length direction of the upper cross beam is parallel to the first direction. The first direction is the horizontal direction. The upper cross beam is a structure with a U-shaped cross section. The guide rails, the fixture and the guide wheels are arranged in the inner cavity of the upper cross beam. Openings are provided on the top surface and both ends in the length direction of the upper cross beam; The fixture includes a jacket and a setscrew threadedly connected to the jacket. The jacket has an internal threaded hole for the setscrew to insert. The setscrew has an external thread. The jacket is a circular tubular member with openings at both ends and a hollow interior. The central hole of the jacket is a circular hole. The jacket is fixedly connected to two parallel support shafts. The two support shafts are arranged in sequence along the length direction of the jacket. The axis of the jacket is parallel to the length direction of the upper cross beam. Both ends of the support shaft are respectively connected to two rollers. The rollers roll along the guide rails. The jacket is located at the middle position between the two guide rails; The fixture is used to clamp the end of the old carbon sleeve roller outside the annealing furnace. After the end of the carbon sleeve roller is inserted into the central hole of the jacket, the setscrew is screwed into the internal threaded hole on the jacket. The setscrew applies a radial pressing force to the end of the carbon sleeve roller. The setscrew fastens the end of the carbon sleeve roller to the jacket, connecting the fixture and the carbon sleeve roller into one body.

2. The roll replacement device for the silicon steel continuous annealing unit according to claim 1, characterized in that, The guide wheel shaft is located below the guide rail.

3. The roll replacement device for the silicon steel continuous annealing unit according to claim 1, characterized in that, The adjusting mechanism includes a screw sleeve arranged on the lower base, a lead screw arranged in the screw sleeve and threadedly connected to the screw sleeve, and a hand wheel connected to the lead screw. The lead screw is connected to the bearing seat.

4. The silicon steel continuous annealing unit furnace roll replacement device according to claim 3, characterized in that, Two adjusting mechanisms are provided and the two adjusting mechanisms are on the same straight line parallel to the length direction of the bearing seat.

5. Method for replacing furnace rolls of silicon steel continuous annealing unit, characterized in that, Adopt the furnace roll replacement device for silicon steel continuous annealing unit according to any one of claims 1 to 4, and include the steps: S1. Pull out one end of the old carbon sleeve roller from the annealing furnace; S2. Move the furnace roll replacement device for silicon steel continuous annealing unit to the designated position, and connect the furnace roll replacement device for silicon steel continuous annealing unit to the annealing furnace to fix the furnace roll replacement device for silicon steel continuous annealing unit; S3. Adjust the height of the bearing seat through the adjusting mechanism to align the center of the fixture with the center of the old carbon sleeve roller; S4. The fixture clamps the old carbon sleeve roller; S5. Use a casing to push the old carbon sleeve roller out of the annealing furnace, and the old carbon sleeve roller pushes the fixture to move synchronously on the bearing seat; S6. Place the new carbon sleeve roller on the guide wheels, and then clamp one end of the new carbon sleeve roller with the fixture; S7. Push the fixture to move, and the fixture pushes the new carbon sleeve roller into the annealing furnace; S8. After the new carbon sleeve roller extends into the annealing furnace to the set length, sleeving the sleeve on the other end of the new carbon sleeve roller, and providing auxiliary support and guidance to the new carbon sleeve roller by the sleeve until the new carbon sleeve roller is completely in place.

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