Hot-dip galvanized steel strip sink roll
By installing cleaning and replacement devices on the hot-dip galvanized steel strip submerged roll, the problem of steel strip surface quality caused by impurity adsorption on the submerged roll surface is solved, achieving efficient cleaning and convenient replacement of the submerged roll, and ensuring the control of billet temperature and shape.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI SHENLONG METAL PRODUCTS CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-15
AI Technical Summary
When pressing the steel strip, the temperature of the steel strip is high while the surface temperature of the submerged roller is low. This causes impurities to be adsorbed on the surface of the submerged roller, forming uneven pits and affecting the surface quality of the steel strip.
A hot-dip galvanized steel strip submerged roller was designed, equipped with a cleaning device and a replacement device. The cleaning device includes a collar, an L-shaped rod, a scraper, bolts, a collection frame, and a spring, and uses the scraper to clean impurities. The replacement device enables convenient replacement of the submerged roller through a protrusion, a groove, a semi-circular ring, and screws.
Effectively cleans impurities from the surface of the submerged roll, avoids unevenness on the steel strip surface, ensures temperature and shape control of the billet, enables convenient replacement of the submerged roll, and prevents equipment damage.
Smart Images
Figure CN224243181U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot-dip galvanized steel strip submerged rollers, and more particularly to hot-dip galvanized steel strip submerged rollers. Background Technology
[0002] Submerged rolls are a type of equipment commonly used in steel smelting processes, primarily for controlling the temperature and shape of steel billets. Their working principle involves removing the steel billet from the furnace and feeding it into the submerged rolls via a series of rollers and conveyors. High-pressure water is injected into the submerged rolls, rapidly cooling the surface of the billet and thus controlling its temperature and shape.
[0003] The inventors discovered during routine use of the submerged roller that when pressing steel strips, the temperature of the steel strip is high while the surface temperature of the submerged roller is low. As a result, during pressing, some impurities are adsorbed on the surface of the submerged roller, which leads to uneven pits on the pressed surface, thus causing problems. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a hot-dip galvanized steel strip submerged roller.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hot-dip galvanized steel strip submerged roller, including a shaft, a submerged roller disposed on the surface of the shaft, the surface of the submerged roller being hot-dip galvanized, a coolant disposed inside the submerged roller, a cleaning device disposed on the surface of the shaft, a replacement device disposed on the surface of the shaft, the cleaning device including a collar sleeved on the surface of the shaft, an L-shaped rod disposed on the side of the collar, a scraper disposed on the side of the L-shaped rod, and the scraper being in close contact with the surface of the submerged roller.
[0006] The aforementioned components achieve the following effects: under the action of the scraper, impurities adhering to the surface of the submerged roll are cleaned, preventing unevenness and pits from appearing on the surface of the steel strip during pressing. After the steel billet is removed from the furnace, it is fed into the submerged roll through a series of rollers and conveyors. High-pressure water is injected into the submerged roll, rapidly cooling the surface of the steel billet, thereby controlling its temperature and shape.
[0007] Preferably, the L-shaped rod has a groove on its side, a scraper is inserted into the groove, and a bolt is threaded onto the side of the L-shaped rod, with the bolt inserted into the scraper.
[0008] The effect achieved by the above components is that, under the action of the bolts, the scraper can be fixed inside the groove, so that the scraper can be replaced, thereby avoiding the phenomenon that the surface of the submerged roller cannot be cleaned after the scraper is damaged.
[0009] Preferably, a collection frame is provided on the side of the L-shaped rod, and a locking rod is inserted into the side of the L-shaped rod, with one end of the locking rod inserted into the interior of the collection frame.
[0010] The effect achieved by the above components is that, under the action of the clamping rod, the collection frame can be fixed to the side of the L-shaped rod, thereby achieving the function of the steel strip collection frame and thus achieving the phenomenon of collecting and cleaning impurities.
[0011] Preferably, a spring is fitted onto the surface of the lever, and the two ends of the spring are fixedly connected to one end of the lever on the side of the L-shaped rod.
[0012] The effect achieved by the above components is as follows: Under the action of the spring, the locking rod is inserted into the collection frame in a self-locking manner. When it is necessary to clean the surface of the submerged roller, the collar is placed on the surface of the shaft, the scraper is inserted into the groove, and the bolt is screwed into the scraper to fix the scraper to the side of the L-shaped rod, thereby cleaning the impurities on the surface of the submerged roller. The locking rod is pulled outward, and the collection frame is placed on the side of the L-shaped rod. Under the action of the spring, the locking rod is inserted into the collection frame in a self-locking manner, thereby collecting the cleaned impurities and achieving the cleaning effect.
[0013] Preferably, the replacement device includes a protrusion fixedly connected to the surface of the shaft, and the inner wall of the submerged roller is provided with a groove.
[0014] The effect achieved by the above components is that, under the action of the protrusions and the grooves, the submerged rollers can be replaced, thereby replacing submerged rollers with uneven surfaces.
[0015] Preferably, a baffle is fixedly connected to the side of the shaft, and a rubber pad is fixedly connected to the side of the baffle.
[0016] The above components achieve the following effects: the baffle prevents the submerged roller from shifting during replacement, and the rubber pads prevent the submerged roller from directly impacting the side of the baffle, thus avoiding damage and deformation of the baffle.
[0017] Preferably, the surface of the shaft is provided with a semi-circular ring, the side of the semi-circular ring can be slotted, the side of the other semi-circular ring is fixedly connected to a locking block, and a screw is inserted into the surface of the semi-circular ring and the screw is inserted into the interior of the locking block.
[0018] The effect achieved by the above components is that, under the action of the screws, the semi-circular rings can be locked together to form a circular plate to limit the submerged roller.
[0019] Preferably, the surface of the shaft is provided with an annular groove, and a semi-circular ring is engaged inside the annular groove.
[0020] The aforementioned components achieve the following effects: Under the action of the annular groove, the steel belt can be placed in certain positions of the semicircular ring, preventing the submerged roller from shifting. When the submerged roller needs to be replaced, the screws are unscrewed, the semicircular ring is disassembled, the submerged roller is moved towards one end of the shaft, and then removed. A new submerged roller is fitted onto the surface of the shaft, and the protrusion is inserted into the sliding groove to prevent slippage during rotation. When the submerged roller is in contact with one side of the baffle, the rubber pad prevents the submerged roller from directly impacting the side of the baffle, avoiding damage or deformation. The semicircular ring is then secured inside the annular groove, the locking block is inserted into the locking groove, and the screws are screwed into the locking block, thus fixing the semicircular ring to the surface of the shaft and the submerged roller to the surface of the shaft, thereby achieving the purpose of replacing the submerged roller.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] In this invention, by setting up a cleaning device, when it is necessary to clean the surface of the submerged roller, a collar is placed on the surface of the shaft, a scraper is inserted into the groove, and a bolt is screwed into the scraper to fix it to the side of the L-shaped rod, thereby cleaning the impurities on the surface of the submerged roller. The clamping rod is pulled outward, and the collection frame is placed on the side of the L-shaped rod. Under the action of the spring, the clamping rod is inserted into the collection frame in a self-locking manner, thereby achieving the function of collecting the cleaned impurities and thus achieving the cleaning effect. This solves the problem that when the submerged roller presses the steel strip, the large temperature difference makes it easy for impurities on the surface of the steel strip to be adsorbed on the surface of the submerged roller. Attached Figure Description
[0023] Figure 1 A three-dimensional structural diagram of the hot-dip galvanized steel strip submerged roller is provided for this utility model;
[0024] Figure 2 A schematic diagram of a cleaning device for a hot-dip galvanized steel strip submerged roller is provided for this utility model.
[0025] Figure 3 A schematic diagram of the replacement device for the submerged roller of hot-dip galvanized steel strip proposed in this utility model;
[0026] Figure 4 This is a partial schematic diagram of the replacement device for the submerged roller of hot-dip galvanized steel strip proposed in this utility model.
[0027] Legend: 1. Shaft; 2. Cleaning device; 21. Collar; 22. Scraper; 23. Groove; 24. Bolt; 25. Collection frame; 26. Locking rod; 27. Spring; 3. Replacement device; 31. Baffle; 32. Rubber pad; 33. Protrusion; 34. Slide groove; 35. Ring groove; 36. Semicircular ring; 37. Screw; 38. Locking groove; 4. Submerged roller. Detailed Implementation
[0028] Example 1, as Figure 1-4 As shown, the hot-dip galvanized steel strip submerged roll 4 includes a shaft 1, with the submerged roll 4 mounted on the surface of the shaft 1. The surface of the submerged roll 4 is hot-dip galvanized, and the interior of the submerged roll 4 is filled with coolant. A cleaning device 2 and a replacement device 3 are mounted on the surface of the shaft 1. After the steel billet is taken out of the furnace, it is fed into the submerged roll 4 through a series of rollers and conduits. High-pressure water is injected into the submerged roll 4 to rapidly cool the surface of the steel billet, thereby controlling the temperature and shape of the steel billet.
[0029] Reference Figure 2The cleaning device 2 includes a collar 21 sleeved on the surface of the shaft 1. An L-shaped rod is provided on the side of the collar 21, and a scraper 22 is provided on the side of the L-shaped rod. The scraper 22 is in close contact with the surface of the submerged roller 4. Under the action of the scraper 22, the impurities adhering to the surface of the submerged roller 4 can be cleaned, avoiding the phenomenon of uneven pits on the surface of the steel strip when pressing the steel strip. After the steel billet is taken out from the furnace, it is fed into the submerged roller 4 through a series of rollers and rollers. High-pressure water is injected into the submerged roller 4 to rapidly cool the surface of the steel billet, thereby controlling the temperature and shape of the billet. A groove 23 is provided on the side of the L-shaped rod, and a scraper 22 is inserted inside the groove 23. Bolts 24 are threaded onto the side of the L-shaped rod and inserted into the scraper 22. The bolts 24 fix the scraper 22 inside the groove 23, allowing for easy replacement of the scraper 22 and preventing damage to the scraper 22 from hindering cleaning of the submerged roller 4 surface. A collection frame 25 is provided on the side of the L-shaped rod, and a clamping rod 26 is inserted into the side of the L-shaped rod. One end of the clamping rod 26 is inserted into the collection frame 25, fixing the collection frame 25 to the side of the L-shaped rod, thus achieving the function of a steel strip collection frame 25 to collect and clean impurities. The phenomenon is that a spring 27 is fitted on the surface of the clamping rod 26. The two ends of the spring 27 are fixedly connected to one end of the clamping rod 26 on the side of the L-shaped rod. Under the action of the spring 27, the clamping rod 26 is inserted into the collection frame 25 in a self-locking state. When it is necessary to clean the surface of the submerged roller 4, the collar 21 is fitted on the surface of the shaft 1, the scraper 22 is inserted into the groove 23, and the bolt 24 is screwed into the scraper 22, thereby fixing the scraper 22 to the side of the L-shaped rod, and thus cleaning the impurities on the surface of the submerged roller 4. The clamping rod 26 is pulled outward, and the collection frame 25 is placed on the side of the L-shaped rod. Under the action of the spring 27, the clamping rod 26 is inserted into the collection frame 25 in a self-locking state, thereby achieving the function of collecting the cleaned impurities and achieving the cleaning function.
[0030] Reference Figure 3-4The replacement device 3 includes a protrusion 33 fixedly connected to the surface of the shaft 1. A groove 34 is formed on the inner wall of the submerged roller 4. The protrusion 33 and the groove 34 allow the submerged roller 4 to be replaced, thus replacing submerged rollers with uneven surfaces. A baffle 31 is fixedly connected to the side of the shaft 1, and a rubber pad 32 is fixedly connected to the side of the baffle 31. The baffle 31 prevents displacement during the replacement of the submerged roller 4, and the rubber pad 32... This design prevents the submerged roller 4 from directly impacting the side of the baffle 31, thus avoiding damage and deformation of the baffle 31. A semi-circular ring 36 is provided on the surface of the shaft 1. The side of the semi-circular ring 36 can be fitted with a groove 38, and a locking block is fixedly connected to the side of the other semi-circular ring 36. Screws 37 are inserted into the surface of the semi-circular ring 36 and into the locking block. Under the action of the screws 37, the semi-circular rings 36 can be locked together to form a circular plate that limits the submerged roller 4. An annular groove 35 is formed on the surface of the shaft 1. A semi-circular ring 36 is fitted inside the annular groove 35. Under the action of the annular groove 35, the semi-circular ring 36 can hold the steel strip in certain positions, preventing the submerged roller 4 from shifting. When the submerged roller 4 needs to be replaced, the screw 37 is unscrewed, the semi-circular ring 36 is disassembled, the submerged roller 4 is moved towards one end of the shaft 1, and then the submerged roller 4 is removed. The new submerged roller 4 is then fitted onto the surface of the shaft 1, and the protrusion 33 is inserted into the sliding groove 34, thus preventing the submerged roller 4 from shifting during rotation. To prevent slippage, when the submerged roller 4 is in contact with one side of the baffle 31, the rubber pad 32 prevents the submerged roller 4 from directly impacting the side of the baffle 31, thus avoiding damage and deformation of the baffle 31. The semi-circular ring 36 is inserted into the ring groove 35, the locking block is inserted into the locking groove 38, and the screw 37 is screwed into the locking block, thereby fixing the semi-circular ring 36 to the surface of the shaft 1, and thus fixing the submerged roller 4 to the surface of the shaft 1, thereby achieving the purpose of replacing the submerged roller 4.
[0031] Working principle: When the hot-dip galvanized steel strip submerged roller 4 is needed, the steel billet is taken out of the furnace and fed into the submerged roller 4 through a series of rollers and rollers. High-pressure water is injected into the submerged roller 4 to rapidly cool the surface of the steel billet, thereby controlling the temperature and shape of the steel billet. When it is necessary to clean the surface of the submerged roller 4, the collar 21 is fitted onto the surface of the shaft 1, the scraper 22 is inserted into the groove 23, and the bolt 24 is screwed into the scraper 22, thereby fixing the scraper 22 to the side of the L-shaped rod, thus cleaning the impurities on the surface of the submerged roller 4. The clamping rod 26 is pulled outward, and the collection frame 25 is placed on the side of the L-shaped rod. Under the action of the spring 27, the clamping rod 26 is self-locking and inserted into the collection frame 25, thereby collecting the cleaned impurities and achieving the cleaning effect. When it is necessary to replace the submerged roller 4, the screw 37 is unscrewed, and the... The semicircular ring 36 is disassembled, and the submerged roller 4 is moved towards one end of the shaft 1. The submerged roller 4 is then removed, and a new submerged roller 4 is fitted onto the surface of the shaft 1. The protrusion 33 is inserted into the slide groove 34 to prevent the submerged roller 4 from slipping when rotating. When the submerged roller 4 is in contact with one side of the baffle 31, the rubber pad 32 prevents the submerged roller 4 from directly impacting the side of the baffle 31, thus avoiding damage and deformation of the baffle 31. The semicircular ring 36 is then secured inside the ring groove 35, and the locking block is inserted into the locking groove 38. The screw 37 is then screwed into the locking block to fix the semicircular ring 36 onto the surface of the shaft 1, thereby fixing the submerged roller 4 onto the surface of the shaft 1, thus achieving the purpose of replacing the submerged roller 4.
Claims
1. A hot-dip galvanized steel strip submerged roller, comprising a shaft (1), a submerged roller (4) disposed on the surface of the shaft (1), the surface of the submerged roller (4) being hot-dip galvanized, characterized in that: The submerged roller (4) is provided with coolant inside. The surface of the shaft (1) is provided with a cleaning device (2) and a replacement device (3). The cleaning device (2) includes a collar (21) sleeved on the surface of the shaft (1). An L-shaped rod is provided on the side of the collar (21), and a scraper (22) is provided on the side of the L-shaped rod. The scraper (22) is in close contact with the surface of the submerged roller (4).
2. The hot-dip galvanized steel strip submerged roller according to claim 1, characterized in that: The L-shaped rod has a groove (23) on its side, and a scraper (22) is inserted inside the groove (23). The L-shaped rod is threaded with a bolt (24), which is inserted into the scraper (22).
3. The hot-dip galvanized steel strip submerged roller according to claim 2, characterized in that: A collection frame (25) is provided on the side of the L-shaped rod, and a locking rod (26) is inserted into the side of the L-shaped rod. One end of the locking rod (26) is inserted into the inside of the collection frame (25).
4. The hot-dip galvanized steel strip submerged roller according to claim 3, characterized in that: A spring (27) is fitted on the surface of the lever (26), and the two ends of the spring (27) are fixedly connected to one end of the lever (26) on the side of the L-shaped rod.
5. The hot-dip galvanized steel strip submerged roller according to claim 4, characterized in that: The replacement device (3) includes a protrusion (33) fixedly connected to the surface of the shaft (1), and the inner wall of the submerged roller (4) is provided with a groove (34).
6. The hot-dip galvanized steel strip submerged roller according to claim 5, characterized in that: A baffle (31) is fixedly connected to the side of the shaft (1), and a rubber pad (32) is fixedly connected to the side of the baffle (31).
7. The hot-dip galvanized steel strip submerged roller according to claim 6, characterized in that: The surface of the shaft (1) is provided with a semi-circular ring (36), the side of the semi-circular ring (36) can be slotted (38), the side of the other semi-circular ring (36) is fixedly connected with a block, and a screw (37) is inserted into the surface of the semi-circular ring (36), the screw (37) is inserted into the interior of the block.
8. The hot-dip galvanized steel strip submerged roller according to claim 7, characterized in that: The surface of the shaft (1) is provided with an annular groove (35), and a semi-circular ring (36) is fitted inside the annular groove (35).