Galvanized strip steel production rolling equipment

Abstract

The utility model relates to the technical field of strip steel rolling, in particular to galvanized strip steel production rolling equipment. According to the technical scheme, the device comprises an air outlet pipe, a fixing frame, rollers and an air cooler, the rollers are symmetrically and rotationally installed in the positions, close to the upper surface and the lower surface, of the interior of the fixing frame, cooling cavities are formed in the two rollers, and the two ends of each roller are fixedly connected with a rotary joint A and a rotary joint B correspondingly; connecting pipes A are fixedly connected to the outer sides of the two rotating joints A, the tail ends of the two connecting pipes A are fixedly connected to the outer surface of an air outlet pipe, and an air inlet pipe is fixedly connected to the tail end of the air cooler output pipe. In the hot rolling process of the galvanized strip steel, the temperature of the roller is reduced, the service life of the roller is prolonged, heat of the roller is converted into hot air, production raw materials needing to be heated can be preheated, meanwhile, the hot air drying device can be used for drying the galvanized strip steel after follow-up cleaning operation, and energy consumption is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of strip steel rolling, in particular to a galvanized strip steel production and rolling equipment. Background Art

[0002] Galvanized steel strip is made of ordinary rolled steel strip through pickling, galvanizing, packaging and other processes. It has good anti-corrosion performance and is widely used. It is mainly used to make metal products that are cold processed and no longer galvanized. For example: light steel keel, fence peach-shaped column, sink, rolling door, bridge frame and other metal products.

[0003] At present, during the hot rolling process of galvanized strip steel, due to the high temperature of the strip steel during rolling, the service life of the rollers, which are in a high temperature and high pressure load environment for a long time, is greatly reduced, and it is also easy to cause the rollers to deform, affecting the rolling quality of the strip steel. For this reason, we propose a galvanized strip steel production rolling equipment. Utility Model Content

[0004] The utility model aims to provide a galvanized steel strip production rolling equipment, which has the advantages of lowering the temperature of the rollers themselves during the hot rolling of the galvanized steel strip, extending the service life of the rollers, and converting the heat of the rollers into hot air, so as to preheat the production raw materials that need to be heated, and also can be used for drying the galvanized steel strip after subsequent cleaning operations, thus saving energy consumption. It solves the problem that in the current hot rolling process of the galvanized steel strip, due to the high temperature of the steel strip during rolling, the service life of the rollers which are in a high temperature and high pressure load environment for a long time is greatly reduced, and it is also easy to cause deformation of the rollers, thereby affecting the rolling quality of the steel strip.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a galvanized strip steel production and rolling equipment, including an air outlet pipe, a fixed frame, rollers and a cold air blower, wherein rollers are symmetrically rotatably installed inside the fixed frame near the upper surface and the lower surface, and cooling chambers are provided inside the two rollers, and both ends of the two rollers are respectively fixedly connected to a rotary joint A and a rotary joint B, and the outer sides of the two rotary joints A are fixedly connected to a connecting pipe A, and the ends of the two connecting pipes A are fixedly connected to the outer surface of the air outlet pipe, the end of the cold air blower output pipe is fixedly connected to an air inlet pipe, and the outer sides of the two rotary joints B are fixedly connected to a connecting pipe B, and the ends of the two connecting pipes B are fixedly connected to the outer surface of the air inlet pipe.

[0006] Preferably, a transmission cover is fixedly installed on one side of the outer surface of the fixed frame close to the rotating joint A, a rotating motor is fixedly installed on the outside of the transmission cover, a motor gear is fixedly connected to the end of the output shaft of the rotating motor, a rotating gear is fixedly sleeved on the outer surface of the roller, the rotating gear and the motor gear are meshed, and the rotating gear and the motor gear are both located inside the transmission cover.

[0007] Preferably, a gear cover is fixedly installed on one side of the outer surface of the fixed frame close to the rotary joint B, and transmission gears are fixedly sleeved on the outer surfaces of the two rollers. The two transmission gears are meshed with each other, and the two transmission gears are both located inside the gear cover.

[0008] Preferably, a central column is provided at the middle position inside the two rolling rollers, and a plurality of heat-conducting reinforcement plates are fixedly connected to the outer surfaces of the two central columns in a circular array at equal intervals.

[0009] Preferably, a dust filter is fixedly installed at the input end of the air cooler.

[0010] Preferably, a fixing seat is fixedly mounted on the lower surface of the fixing frame, and mounting holes are arranged on the upper surface of the fixing seat near four corners.

[0011] Preferably, a U-shaped frame is fixedly installed on the front surface of the fixed frame, a plurality of conveying rollers are equidistantly installed inside the U-shaped frame for rotation, hydraulic cylinders are symmetrically fixedly installed at both sides of the outer surface of the U-shaped frame, two ends of the hydraulic cylinder output shafts are fixedly connected to springs, two ends of the springs are fixedly connected to limit plates, sliding rods are symmetrically fixedly connected at the outer sides of the two limit plates near the front surface and the rear surface, through holes are symmetrically provided at the outer sides of the U-shaped frame near the front surface and the rear surface, and the four sliding rods pass through the four through holes respectively.

[0012] Preferably, the upper surfaces of the two limit plates are both provided with dovetail slots, two dovetail plugs are movably plugged in the two dovetail slots, and wear-resistant plates are fixedly installed on the inner sides of the two dovetail plugs.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model achieves the effect of lowering the temperature of the rollers themselves during the hot rolling of galvanized steel strips and extending the service life of the rollers by arranging rollers, cooling chambers, rotary joints A, rotary joints B, air coolers and air outlet pipes, and converting the heat of the rollers into hot air, which can be used to preheat the production materials that need to be heated, and can also be used for drying the galvanized steel strips after subsequent cleaning operations, thereby saving energy consumption. The heated galvanized steel strips pass through between the two rollers, and the two rollers rotate to complete the hot rolling of the galvanized steel strips. At the same time, the air cooler allows external cold air to enter the cooling chamber inside the rollers from the rotary joint B, and the flowing cold air takes away the heat of the rollers. At the same time, the heated air is discharged from the rotary joint A and merged into the air outlet pipe, and the hot air inside the air outlet pipe can be used for preheating the production materials, and can also be used for drying the galvanized steel strips after subsequent cleaning operations.

[0015] 2. The utility model can improve the overall structural strength of the roller through the central column and the heat-conducting reinforcing plate, and at the same time increase the contact area with the cold air inside the roller, which is beneficial to the heat dissipation and cooling of the roller.

[0016] 3. The utility model achieves the effect of limiting the galvanized steel strip raw material before entering the fixed frame by arranging a U-frame, a conveying roller, a hydraulic cylinder, a spring, a limit plate, a sliding rod and a through hole, which is beneficial to the rolling effect of the roller. The galvanized steel strip raw material moves through the conveying roller inside the U-frame and enters the fixed frame for rolling. Before entering the fixed frame, the two hydraulic cylinders drive the two limit plates to move, and due to the elastic force of the spring, the two limit plates are in elastic contact with both sides of the galvanized steel strip raw material, and limit the two sides of the galvanized steel strip raw material. At the same time, in the process of moving the limit plates, the sliding rod moves synchronously and is limited by the through holes, thereby guiding the limit plates and improving the stability of the limit plates.

[0017] 4. The utility model achieves the effect of extending the service life of the limit plate and facilitating the replacement of the wear-resistant plate through the dovetail slot, dovetail plug and wear-resistant plate. The wear-resistant plate is fixed to the inner side of the limit plate through the dovetail slot and the dovetail plug, replacing the contact between the limit plate and the galvanized steel strip raw material, thereby extending the service life of the limit plate and facilitating replacement of the wear-resistant plate after it is worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 It is a partial three-dimensional schematic diagram of the roller of the utility model;

[0020] Figure 3 This is a partial three-dimensional schematic diagram of the U-shaped frame of the utility model;

[0021] Figure 4 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the partial main cross-sectional structure of the transmission cover of the utility model;

[0023] Figure 6 It is a schematic diagram of the partial main cross-sectional structure of the gear cover of the utility model.

[0024] : Illustrations: 1. Mounting hole; 2. Fixed seat; 3. Air outlet duct; 4. Connecting pipe A; 5. Rotating joint A; 6. Rotating motor; 7. Transmission cover; 8. Fixed frame; 9. Roller; 10. Rotating joint B; 11. Connecting pipe B; 12. Air inlet duct; 13. Air cooler; 14. Dust filter; 15. U-shaped frame; 16. Center column; 17. Heat conduction reinforcement plate; 18. Cooling chamber; 19. Conveying roller; 20. Through hole; 21. Sliding rod; 22. Spring; 23. Hydraulic cylinder; 24. Limiting plate; 25. Dovetail slot; 26. Wear-resistant plate; 27. Dovetail plug; 28. Gear cover; 29. ​​Motor gear; 30. Rotating gear; 31. Transmission gear. DETAILED DESCRIPTION

[0025] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Embodiment 1

[0027] like Figures 1 to 5 As shown, a galvanized strip steel production and rolling equipment proposed by the utility model includes an air outlet duct 3, a fixed frame 8, rollers 9 and a cooling fan 13. Rollers 9 are symmetrically rotatably installed near the upper surface and the lower surface inside the fixed frame 8. Cooling chambers 18 are provided inside the two rollers 9. Both ends of the two rollers 9 are respectively fixedly connected to a rotary joint A5 and a rotary joint B10. A transmission cover 7 is fixedly installed on one side of the outer surface of the fixed frame 8 near the rotary joint A5. A rotating motor 6 is fixedly installed on the outer side of the transmission cover 7. The end of the output shaft of the rotating motor 6 is fixedly connected to a motor gear 29. A rotating gear 30 is fixedly sleeved on the outer surface of the roller 9. The rotating gear 30 and the motor gear 29 are meshed, and the rotating gear 30 and the motor gear 29 are both located inside the transmission cover 7.

[0028] The rotating motor 6 drives one of the rollers 9 to rotate through the meshing motor gear 29 and the rotating gear 30. A gear cover 28 is fixedly installed on the outer surface of the fixed frame 8 near the rotating joint B10. The outer surfaces of the two rollers 9 are fixedly sleeved with transmission gears 31. The two transmission gears 31 are meshed, and the two transmission gears 31 are both located inside the gear cover 28. The two rollers 9 are driven by two meshing transmission gears 31, and the two rollers 9 rotate synchronously in opposite directions. When the galvanized strip steel raw material passes through the two rollers 9, it is rolled. The outer sides of the two rotating joints A5 are fixedly connected with connecting pipes A4, and the ends of the two connecting pipes A4 are fixedly connected to the outer surface of the air outlet pipe 3. The input end of the cold air blower 13 is fixedly installed with a dust filter 14. The external cold air passes through the dust filter 14 before entering the cold air blower 13. The dust filter 14 filters out dust and impurities, the end of the output pipe of the air cooler 13 is fixedly connected to the air inlet pipe 12, the outer sides of the two rotary joints B10 are fixedly connected to the connecting pipes B11, and the ends of the two connecting pipes B11 are fixedly connected to the outer surface of the air inlet pipe 12, and a central column 16 is provided at the middle position inside the two rollers 9. The central column 16 inside each roller 9 is located on the same axis, and the outer surfaces of the two central columns 16 are fixedly connected with a number of heat-conducting reinforcement plates 17 in a circular array at equal intervals. The central column 16 and the heat-conducting reinforcement plates 17 can improve the overall structural strength of the roller 9, and at the same time increase the contact area with the cold air inside the roller 9, which is beneficial to the heat dissipation and cooling of the roller 9. A fixed seat 2 is fixedly installed on the lower surface of the fixed frame 8, and mounting holes 1 are provided on the upper surface of the fixed seat 2 near the four corners.

[0029] When the utility model is in use, the heated galvanized steel strip raw material passes through between the two rollers 9, and the two rollers 9 rotate to complete the hot rolling of the galvanized steel strip. At the same time, the cold air fan 13 allows the external cold air to enter the cooling chamber 18 inside the roller 9 from the rotary joint B10. The flowing cold air takes away the heat of the roller 9. At the same time, the heated air is discharged from the rotary joint A5 and merged into the air outlet 3. The hot air inside the air outlet 3 can be used for preheating the production raw materials, and can also be used for drying the galvanized steel strip after subsequent cleaning operations.

[0030] Embodiment 2

[0031] like Figures 1 to 4As shown, a galvanized strip steel production and rolling equipment proposed by the utility model, compared with the first embodiment, this embodiment also includes a U-shaped frame 15 fixedly installed on the front surface of the fixed frame 8, a plurality of conveying rollers 19 are equidistantly installed and rotatably installed inside the U-shaped frame 15, hydraulic cylinders 23 are symmetrically fixedly installed at both sides of the outer surface of the U-shaped frame 15, the ends of the output shafts of the two hydraulic cylinders 23 are fixedly connected with springs 22, the ends of the two springs 22 are fixedly connected with limit plates 24, the outer sides of the two limit plates 24 are symmetrically fixedly connected with sliding rods 21 near the front and rear surfaces, the outer sides of the U-shaped frame 15 are symmetrically provided with through holes 20 near the front and rear surfaces, and the four sliding rods 21 pass through the four through holes 20 respectively, the upper surfaces of the two limit plates 24 are provided with dovetail slots 25, the two dovetail slots 25 are movably plugged with two dovetail plugs 27, and the inner sides of the two dovetail plugs 27 are fixedly installed with wear-resistant plates 26.

[0032] In this embodiment, the galvanized steel strip raw material moves through the conveying roller 19 inside the U-shaped frame 15 and enters the fixed frame 8 for rolling. Before entering the fixed frame 8, the two hydraulic cylinders 23 drive the two limit plates 24 to move, and due to the elastic force of the spring 22, the wear-resistant plates 26 fixed on the inner sides of the two limit plates 24 through the dovetail slots 25 and the dovetail plugs 27 are in elastic contact with the two sides of the galvanized steel strip raw material, and play a limiting role on both sides of the galvanized steel strip raw material. At the same time, during the movement of the limit plates 24, the sliding rod 21 moves synchronously and is restricted by the through holes 20, thereby guiding the limit plates 24, improving the stability of the limit plates 24 and the wear-resistant plates 26, and facilitating replacement after the wear-resistant plates 26 are worn.

[0033] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A galvanized steel strip production rolling equipment, comprising an air outlet pipe (3), a fixed frame (8), a roller (9) and a cooling fan (13), characterized in that: Rollers (9) are symmetrically mounted for rotation near the upper and lower surfaces of the fixed frame (8); a cooling chamber (18) is provided inside the two rollers (9); both ends of the two rollers (9) are respectively fixedly connected to a rotary joint A (5) and a rotary joint B (10); the outer sides of the two rotary joints A (5) are fixedly connected to a connecting pipe A (4); and the ends of the two connecting pipes A (4) are fixedly connected to the outer surface of the air outlet pipe (3); the end of the output pipe of the air cooler (13) is fixedly connected to the air inlet pipe (12); the outer sides of the two rotary joints B (10) are fixedly connected to a connecting pipe B (11); and the ends of the two connecting pipes B (11) are fixedly connected to the outer surface of the air inlet pipe (12).

2. A galvanized steel strip production rolling equipment according to claim 1, characterized in that: A transmission cover (7) is fixedly mounted on one side of the outer surface of the fixed frame (8) close to the rotary joint A (5); a rotating motor (6) is fixedly mounted on the outer side of the transmission cover (7); a motor gear (29) is fixedly connected to the end of the output shaft of the rotating motor (6); a rotating gear (30) is fixedly sleeved on the outer surface of the roller (9); the rotating gear (30) and the motor gear (29) are meshed with each other, and both the rotating gear (30) and the motor gear (29) are located inside the transmission cover (7).

3. The galvanized steel strip production rolling equipment according to claim 1, characterized in that: A gear cover (28) is fixedly mounted on one side of the outer surface of the fixed frame (8) close to the rotary joint B (10), and transmission gears (31) are fixedly sleeved on the outer surfaces of the two rollers (9), the two transmission gears (31) are meshed with each other, and the two transmission gears (31) are both located inside the gear cover (28).

4. The galvanized steel strip production rolling equipment according to claim 1, characterized in that: A central column (16) is provided at the middle position inside the two rollers (9), and a plurality of heat-conducting reinforcing plates (17) are fixedly connected to the outer surfaces of the two central columns (16) in a circular array at equal intervals.

5. The galvanized steel strip production rolling equipment according to claim 1, characterized in that: A dust filter (14) is fixedly mounted on the input end of the cooling fan (13).

6. The galvanized steel strip production rolling equipment according to claim 1, characterized in that: A fixing seat (2) is fixedly mounted on the lower surface of the fixing frame (8), and mounting holes (1) are arranged on the upper surface of the fixing seat (2) near four corners.

7. The galvanized steel strip production rolling equipment according to claim 1, characterized in that: A U-shaped frame (15) is fixedly mounted on the front surface of the fixed frame (8), a plurality of conveying rollers (19) are equidistantly mounted inside the U-shaped frame (15), hydraulic cylinders (23) are symmetrically fixedly mounted at positions on both sides of the outer surface of the U-shaped frame (15), the ends of the output shafts of the two hydraulic cylinders (23) are fixedly connected to springs (22), the ends of the two springs (22) are fixedly connected to limit plates (24), the outer sides of the two limit plates (24) are symmetrically fixedly connected to sliding rods (21) at positions near the front surface and the rear surface, and the outer sides of the U-shaped frame (15) are symmetrically provided with through holes (20) at positions near the front surface and the rear surface, and the four sliding rods (21) pass through the four through holes (20) respectively.

8. The galvanized steel strip production rolling equipment according to claim 7, characterized in that: The upper surfaces of the two limit plates (24) are both provided with dovetail slots (25), two dovetail plug blocks (27) are movably inserted inside the two dovetail slots (25), and wear-resistant plates (26) are fixedly installed inside the two dovetail plug blocks (27).

Images