Monolithic stopper rod with head reinforcing structure
By applying an anti-oxidation coating and ceramic fibers to the stopper head and combining them with reinforcement components, the problems of wear and cracking at the stopper head were solved, and the high temperature resistance, corrosion resistance and stability of the stopper were improved.
Patent Information
- Application Number
- CN202520570665.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-28
AI Technical Summary
The existing integral stopper rod head is prone to wear and cracking in high-temperature molten steel, which affects continuous casting efficiency and the purity of molten steel.
An anti-oxidation coating and internal ceramic fibers are applied to the head of the stopper rod, combined with reinforcing components such as a retaining ring, insert rod, and telescopic spring to achieve reinforcement and stable connection of the head.
It extends the service life of the stopper head, improves the stability and accuracy of molten steel flow regulation, enhances thermal shock resistance and erosion resistance, and improves overall strength and impact resistance of the connection.
Smart Images

Figure CN223916657U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of stopper rod technology, and in particular relates to an integral stopper rod with a head reinforcement structure. Background Technology
[0002] The integral stopper rod is a key component in the continuous casting process, used to control the flow rate and volume of molten steel. The integral stopper rod adjusts the flow rate of molten steel by moving up and down to ensure the stability of the billet quality. Its performance directly affects the continuous casting efficiency and the purity of molten steel. It must have characteristics such as high temperature resistance, corrosion resistance and thermal shock resistance. It is an indispensable core component in the continuous casting process.
[0003] During continuous casting, the stopper rod head is in direct contact with high-temperature molten steel and is subjected to thermal shock and erosion over a long period of time, which may cause the head to wear and crack easily. Therefore, we provide integral stopper rods with head reinforcement structures. Utility Model Content
[0004] The purpose of this invention is to provide an integral stopper rod with a head reinforcement structure. By setting an anti-oxidation coating on the surface of the punch and setting ceramic fibers inside it, the problem of easy wear and cracking of the head of the existing stopper rod is solved.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is an integral stopper rod with a head reinforcement structure, including a stopper rod one, a stopper rod two at the bottom of the stopper rod one, a splicing component inside the stopper rod two, and a reinforcement component on the outer surface of the stopper rod two;
[0007] The reinforcement component includes a fixing ring, the inner wall of which is fixedly connected to the outer surface of the stopper rod, a fixing block three fixedly connected to the inner wall of the fixing ring, a telescopic spring three fixedly connected to the inner wall of the fixing block three, an insert rod slidably connected to the inner wall of the fixing block three, a sliding block fixedly connected to the outer surface of the insert rod, a reinforcement shell slidably connected to the inner wall of the fixing ring, a slot four opened inside the reinforcement shell, a positioning groove opened inside the fixing ring, a positioning block fixedly connected to the top of the reinforcement shell, a punch fixedly connected to the bottom of the reinforcement shell, an anti-oxidation coating provided on the outer surface of the punch, and ceramic fibers fixedly connected inside the punch.
[0008] Furthermore, the outer surface of the sliding block is slidably connected to the inner wall of the fixed ring, the outer wall of the telescopic spring three is fixedly connected to the sliding block at the end away from the fixed block three, the inner wall of the slot four is engaged with the outer surface of the insertion rod, and the outer surface of the positioning block is slidably connected to the inner wall of the positioning groove.
[0009] Furthermore, the splicing assembly includes an insert block, the top of which is fixedly connected to the bottom of the stopper rod. There are two insert blocks in total, and the stopper rod has a slot inside.
[0010] Furthermore, the first stopper rod has a groove 2 inside, the top of the second stopper rod is fixedly connected to a first stopper block, the top of the second stopper rod is fixedly connected to a second stopper block, and the outer surface of the second stopper block engages with the inner wall of the groove 2.
[0011] Furthermore, the inner wall of the slot one is engaged with the outer surface of the block one, the plug rod two have slots inside, the inner wall of the slot is slidably connected to the outer surface of the plug, and a telescopic spring one is fixedly connected to the inner wall of the plug.
[0012] Furthermore, a fixing block is fixedly connected to the top of the telescopic spring, a fixing shaft is fixedly connected inside the insert block, and a locking block is fixedly connected to the outer surface of the fixing shaft.
[0013] Furthermore, the insert block has a slot three inside, the slot three engages with the outer surface of the insert block three, the outer wall of the insert block three is fixedly connected with a pressure block, and the inner wall of the insert block is fixedly connected with a telescopic spring two.
[0014] Furthermore, a fixing block is fixedly connected to the top of the telescopic spring two, a rotating shaft is rotatably connected to the inner wall of the stopper rod two, and a pressing block is fixedly connected to the outer wall of the rotating shaft.
[0015] This utility model has the following beneficial effects:
[0016] This invention utilizes an anti-oxidation coating. When installing the reinforcement component, the insertion rod is pulled first, causing the sliding block to move outwards towards the second stopper rod. Then, multiple positioning blocks on the top of the reinforcement shell are aligned with multiple positioning slots and inserted. The insertion rod is then released, allowing it to be inserted into the fourth slot, thus completing the fixation. During operation, the assembled stopper rods one and two are used to regulate the molten steel flow. The anti-oxidation coating on the punch surface effectively prevents high-temperature oxidation and corrosion, extending the punch's service life and ensuring the stability and accuracy of molten steel flow regulation. Furthermore, the ceramic fibers within the anti-oxidation coating further enhance the punch's high-temperature resistance, thermal shock resistance, and corrosion resistance, improving its overall strength.
[0017] This invention, by setting a locking block three, allows for the assembly of stopper rod one and stopper rod two. First, the two side inserts at the bottom of stopper rod one are aligned with the slots inside stopper rod two. Then, locking blocks one and two are inserted into slots one and two, respectively. The side inserts then press against the top of locking block three, causing it to rotate on the fixed shaft surface and compress the tension spring two. When slots three and locking block three are on the same horizontal plane, the tension spring two extends and resets the pressure block, thus resetting locking block three and securing it inside slot three. At this point, stopper rod one and stopper rod two are assembled, resulting in a stable structure, easy operation, enhanced impact resistance and durability, and improved maintenance efficiency.
[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the fixing ring structure of this utility model;
[0022] Figure 3 This is a cross-sectional exploded view of the reinforced shell of this utility model;
[0023] Figure 4 This is a schematic diagram of the three-structure telescopic spring of this utility model;
[0024] Figure 5 This is a schematic diagram of the exploded structure of the stopper rod of this utility model;
[0025] Figure 6 This is a cross-sectional view of the card block of this utility model;
[0026] Figure 7 This is a schematic diagram of the two-section structure of the stopper rod of this utility model;
[0027] Figure 8 This is a schematic diagram of the extrusion block structure of this utility model.
[0028] The attached diagram lists the components represented by each number as follows:
[0029] 1. Stopper rod one; 2. Splicing assembly; 201. Slot one; 202. Slot two; 203. Insert block; 204. Slot one; 205. Slot two; 206. Rotating shaft; 207. Slot; 208. Telescopic spring one; 209. Slot three; 210. Fixing block one; 211. Fixing shaft; 212. Telescopic spring two; 213. Slot three; 214. Fixing block two; 215. Pressure block; 216. Extrusion block; 3. Reinforcing assembly; 301. Fixing ring; 302. Insert rod; 303. Reinforcing shell; 304. Anti-oxidation coating; 305. Punch; 306. Ceramic fiber; 307. Positioning block; 308. Positioning groove; 309. Slot four; 310. Fixing block three; 311. Telescopic spring three; 312. Sliding block; 4. Stopper rod two. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see Figure 1-8 As shown, the present invention is an integral stopper rod with a head reinforcement structure, including a stopper rod 1, a stopper rod 2 4 at the bottom of the stopper rod 1, a splicing component 2 inside the stopper rod 2 4, and a reinforcement component 3 on the outer surface of the stopper rod 2 4.
[0032] The reinforcing component 3 includes a fixing ring 301, the inner wall of which is fixedly connected to the outer surface of the second stopper 4. A fixing block 310 is fixedly connected to the inner wall of the fixing ring 301, and a telescopic spring 311 is fixedly connected to the inner wall of the fixing block 310. The telescopic spring 311 can apply a compressive force to the insertion rod 302, so that the insertion rod 302 is firmly inserted into the slot 4 309, thereby quickly and stably fixing it. The insertion rod 302 is slidably connected to the inner wall of the fixing block 310. The insertion rod 302 can be positioned by the reinforcing shell 303. When block 307 is inserted into the positioning groove 308, the insertion rod 302 is driven by the telescopic spring 311 and inserted into the slot 309, thus completing the quick fixation and greatly improving the efficiency of disassembly and assembly. A sliding block 312 is fixedly connected to the outer surface of the insertion rod 302, and a reinforcing shell 303 is slidably connected to the inner wall of the fixing ring 301. The reinforcing shell 303 has a slot 309 inside, and the fixing ring 301 has a positioning groove 308 inside. A positioning block 307 is fixedly connected to the top of the reinforcing shell 303. By inserting the positioning block 307 into the positioning groove 309... Inside the 8, the three slots 309 and multiple inserts 302 are aligned on the same horizontal plane, enabling rapid positioning. A punch 305 is fixedly connected to the bottom of the reinforced shell 303. The outer surface of the punch 305 is coated with an anti-oxidation coating 304, which prevents high-temperature oxidation and extends its service life. Ceramic fibers 306 are fixedly connected inside the punch 305, making it more resistant to high temperatures, thermal shock, and corrosion, thus significantly extending its service life. This reduces replacement frequency, improves continuous casting efficiency, improves billet quality, and reduces production costs. The outer surface of the sliding block 312 is slidably connected to the inner wall of the fixed ring 301. The outer wall of the telescopic spring 311 is fixedly connected to the sliding block 312 at the end away from the fixed block 310. The inner wall of the slot 4 309 is engaged with the outer surface of the insert rod 302. The outer surface of the positioning block 307 is slidably connected to the inner wall of the positioning groove 308. The splicing component 2 includes an insert block 203. The top of the insert block 203 is fixedly connected to the bottom of the stopper rod 1. The stopper rod 1 has a slot 201 inside.
[0033] The stopper rod 1 has a slot 202 inside. By inserting the first locking block 204 and the second locking block 205 of the stopper rod 24 into the slots 201 and 202 inside the stopper rod 1, initial fixation can be achieved, thereby greatly improving the splicing efficiency. The top of the stopper rod 24 is fixedly connected to the first locking block 204 and the second locking block 205. The outer surface of the second locking block 205 engages with the inner wall of the slot 202. When the insert block 203 at the bottom of the stopper rod 1 is inserted into the slot 207 inside the stopper rod 24, the insert block 203 will press the fixing block 210 and compress the telescopic spring 208. At the same time, the insert block 203 will press the locking block 213 to rotate on the surface of the fixing shaft 211. Subsequently, when the slot 209 inside the insert block 203 engages with the locking block 210... When 13 is on the same horizontal plane, the second telescopic spring 212 will drive the pressure block 215 to rebound, and the pressure block 215 will drive the third locking block 213 to lock inside the third locking groove 209, thereby completing the further reinforcement and splicing of the first stopper rod 1 and the second stopper rod 4, thus ensuring a stable connection and enhancing the impact resistance and durability of the overall structure. The inner wall of the first locking groove 201 is engaged with the outer surface of the first locking block 204. The second stopper rod 4 has a slot 207 inside, and there are two slots 207. The inner wall of the slot 207 is slidably connected to the outer surface of the insertion block 203. The inner wall of the insertion block 203 is fixedly connected to the first telescopic spring 208. The top of the first telescopic spring 208 is fixedly connected to the first fixing block 210. The insertion block 203 is fixedly connected to the fixing shaft 211. The outer surface of the fixing shaft 211 is fixedly connected to the third locking block 213.
[0034] The insert block 203 has a slot 209 inside, which engages with the outer surface of the block 213. A pressure block 215 is fixedly connected to the outer wall of the block 213, and a telescopic spring 212 is fixedly connected to the inner wall of the insert block 203. The telescopic spring 212 is compressed by the block 213 when the insert block 203 presses against the block 213. When the block 213 and the slot 209 are on the same horizontal plane, the telescopic spring 212 will cause the block 213 to rebound and fix the insert block 203. A fixing block 214 is fixedly connected to the top of the telescopic spring 212. The inner wall of the stopper rod 24 is rotatably connected to a rotating shaft 206, and the outer wall of the rotating shaft 206 is fixedly connected to a pressing block 216. By rotating the rotating shaft 206 clockwise, the pressing block 216 can be driven to press the pressure block 215. At this time, the pressure block 215 will press down the telescopic spring 212, thereby driving the locking block 213 to disengage from the slot 209, thus completing the quick disassembly, thereby bringing higher flexibility, maintainability and economy.
[0035] One specific application of this embodiment is:
[0036] When it is necessary to splice stopper rod 1 and stopper rod 2 4, first align the two side inserts 203 at the bottom of stopper rod 1 with the slots 207 inside stopper rod 2 4. Then insert locking blocks 1 204 and 2 205 into slots 1 201 and 2 202. As locking blocks 1 204 and 2 205 gradually penetrate deeper, the side inserts 203 will then insert into the slots 207 on both sides. At this time, the inserts 203 will press against the top of locking block 3 213. Locking block 3 213 will then rotate on the surface of the fixed shaft 211, causing the pressure block 215 to compress the telescopic spring 212. Subsequently, the inserts 203 will compress the telescopic spring 1 208. When slot 3 209 and locking block 3 213 are at the same level... When the spring is in contact with the object, the second telescopic spring 212 will extend and drive the pressure block 215 to reset, thereby driving the third locking block 213 to reset and lock into the slot 209. At this time, the first stopper 1 and the second stopper 4 are assembled. When the first stopper 1 and the second stopper 4 need to be disassembled, simply rotate the rotating shaft 206 clockwise. The rotating shaft 206 will then drive the pressing block 216 to rotate, causing the pressing block 216 to press the pressure block 215. At this time, the pressure block 215 will compress the second telescopic spring 212 and drive the third locking block 213 to disengage from the slot 209, thereby completing the disassembly. This makes the splicing structure stable, easy to operate, enhances the impact resistance and durability of the connection, and improves maintenance efficiency.
[0037] When it is necessary to install the reinforcement component 3, first pull the insertion rod 302. Then, the insertion rod 302 will drive the sliding block 312 to move outward towards the stopper rod 4. Subsequently, the sliding block 312 will compress the telescopic spring 311. Then, the multiple positioning blocks 307 on the top of the reinforcement shell 303 will be aligned with the multiple positioning slots 308 and inserted. At this time, the slot 309 on the surface of the reinforcement shell 303 will be at the same level as the multiple insertion rods 302. Then, release the insertion rod 302. At this time, the telescopic spring 311 will drive the sliding block 312 to reset, thereby driving the insertion rod 302 to insert into the slot 309. Inside 09, the connection is secured. During operation, the assembled stopper rods 1 and 4 move up and down to adjust the molten steel flow. The anti-oxidation coating 304 on the surface of the punch 305 effectively prevents high-temperature oxidation and corrosion, extending the service life of the punch 305 and ensuring the stability and accuracy of molten steel flow adjustment. At the same time, the ceramic fiber 306 inside the anti-oxidation coating 304 further enhances the high-temperature resistance, thermal shock resistance, and corrosion resistance of the punch 305, improving its overall strength. The convenient and stable installation also makes replacement or disassembly easier.
[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An integral stopper rod with a head-reinforced structure, comprising a stopper rod one (1), characterized in that: The bottom of the first stopper (1) is provided with a second stopper (4), the inside of the second stopper (4) is provided with a splicing component (2), and the outer surface of the second stopper (4) is provided with a reinforcing component (3). The reinforcing component (3) includes a fixing ring (301), the inner wall of which is fixedly connected to the outer surface of the stopper rod (4), a fixing block (310) fixedly connected to the inner wall of the fixing ring (301), a telescopic spring (311) fixedly connected to the inner wall of the fixing block (310), an insert rod (302) slidably connected to the inner wall of the fixing block (310), and a sliding block (312) fixedly connected to the outer surface of the insert rod (302). A reinforcing shell (303) is slidably connected to the inner wall. The reinforcing shell (303) has a slot four (309) inside. The fixing ring (301) has a positioning groove (308) inside. A positioning block (307) is fixedly connected to the top of the reinforcing shell (303). A punch (305) is fixedly connected to the bottom of the reinforcing shell (303). An anti-oxidation coating (304) is provided on the outer surface of the punch (305). Ceramic fiber (306) is fixedly connected inside the punch (305).
2. The integral stopper rod with a head-reinforced structure according to claim 1, characterized in that, The outer surface of the sliding block (312) is slidably connected to the inner wall of the fixed ring (301). The outer wall of the telescopic spring three (311) is fixedly connected to the sliding block (312) at one end away from the fixed block three (310). The inner wall of the slot four (309) is engaged with the outer surface of the insert rod (302). The outer surface of the positioning block (307) is slidably connected to the inner wall of the positioning groove (308).
3. The integral stopper rod with a head-reinforced structure according to claim 1, characterized in that, The splicing component (2) includes a plug (203), the top of which is fixedly connected to the bottom of the stopper rod (1), and the stopper rod (1) has a slot (201) inside.
4. The integral stopper rod with a head-reinforced structure according to claim 3, characterized in that, The stopper rod (1) has a slot (202) inside. The top of the stopper rod (4) is fixedly connected to a block (204). The top of the stopper rod (4) is fixedly connected to a block (205). The outer surface of the block (205) is engaged with the inner wall of the slot (202).
5. The integral stopper rod with a head-reinforced structure according to claim 4, characterized in that, The inner wall of the slot 1 (201) is engaged with the outer surface of the block 1 (204). The plug 2 (4) has a slot (207) inside. There are two slots (207). The inner wall of the slot (207) is slidably connected to the outer surface of the plug (203). The inner wall of the plug (203) is fixedly connected with a telescopic spring 1 (208).
6. The integral stopper rod with a head-reinforced structure according to claim 5, characterized in that, The top of the telescopic spring (208) is fixedly connected to a fixing block (210), the inside of the insert (203) is fixedly connected to a fixing shaft (211), and the outer surface of the fixing shaft (211) is fixedly connected to a locking block (213).
7. The integral stopper rod with a head-reinforced structure according to claim 6, characterized in that, The insert (203) has a slot three (209) inside, the slot three (209) is engaged with the outer surface of the slot three (213), the outer wall of the slot three (213) is fixedly connected with a pressure block (215), and the inner wall of the insert (203) is fixedly connected with a telescopic spring two (212).
8. The integral stopper rod with a head-reinforced structure according to claim 7, characterized in that, The top of the second telescopic spring (212) is fixedly connected to the second fixing block (214), the inner wall of the second stopper (4) is rotatably connected to the rotating shaft (206), and the outer wall of the rotating shaft (206) is fixedly connected to the squeezing block (216).