Head reinforced integral stopper

Abstract

The utility model discloses a head reinforcing type integral stopper, including the stick body, the bottom fixedly connected with the connecting portion of stick body, the one end fixedly connected with the stick head of connecting portion away from stick body, the top of stick body is equipped with the thread installation groove, the inside of stick body is equipped with the gas pipe, is equipped with the connecting port and the exhaust hole on stick body, the gas pipe is linked together with the connecting port, the connecting port and exhaust hole are linked together, the same material of stick body, connecting portion and stick head is from outside to inside and is equipped with outer layer, middle layer and inner layer in proper order. The utility model discloses the layered material quality design of outer layer, middle layer, inner layer, and adds the reinforcing framework between outer layer and middle layer, strengthens the interlayer connection intensity, avoids the interlayer peeling, the cracking problem of existing structure because of thermal expansion and cold shrink or mechanical stress, promotes the anti -deformation ability of overall structure, reduces the security hidden danger such as metal liquid leakage.

Description

Technical Field

[0001] This utility model relates to the field of integral stopper technology, and in particular to a head-reinforced integral stopper. Background Technology

[0002] In industries such as metallurgy and casting, integral stopper rods are key functional components for controlling the flow state of high-temperature molten metal (such as molten steel and molten iron), and are widely used in production processes such as continuous casting and casting.

[0003] Existing stopper rods mostly use a single material or a simple layered structure, lacking effective reinforcement and connection design between layers. Under repeated thermal expansion and contraction and mechanical stress, they are prone to problems such as interlayer peeling and cracking, resulting in a decrease in the overall structural stability and even causing safety hazards such as molten metal leakage. To solve the above problems, this application proposes a head-reinforced integral stopper rod. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a head-reinforced integral stopper rod. It adopts a layered material design with an outer layer, a middle layer, and an inner layer, and adds a reinforcing skeleton between the outer and middle layers to strengthen the interlayer connection strength. This avoids the problems of interlayer peeling and cracking caused by thermal expansion and contraction or mechanical stress in existing structures, improves the overall structure's resistance to deformation, and reduces safety hazards such as molten metal leakage.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A head-reinforced integral stopper rod includes a rod body, a connecting part fixedly connected to the bottom of the rod body, a rod head fixedly connected to the end of the connecting part away from the rod body, a threaded mounting groove opened at the top of the rod body, an air supply pipe opened inside the rod body, a connection port and an exhaust hole opened on the rod body, the air supply pipe is connected to the connection port, and the connection port and the exhaust hole are connected to each other. The rod body, the connecting part and the rod head are made of the same material and are arranged as an outer layer, a middle layer and an inner layer from the outside to the inside.

[0006] Preferably, a plurality of convex balls are fixedly connected to the bottom of the rod head, and the plurality of convex balls are distributed at equal intervals.

[0007] Preferably, the inner wall of the threaded mounting groove is provided with an internal thread, and the threaded mounting groove is connected to the gas transmission pipe.

[0008] Preferably, the diameter of the vent hole gradually decreases from the outside of the rod to the inside of the rod.

[0009] Preferably, the outer layer is made of Al2O3-ZrO2-SiC composite ceramic, the middle layer is made of Al2O3-MgO composite ceramic, and the inner layer is made of Al2O3.

[0010] Preferably, a reinforcing skeleton is provided between the outer layer and the middle layer, and the two ends of the reinforcing skeleton are respectively connected to the outer layer and the middle layer.

[0011] Compared with the prior art, the advantages of this utility model are as follows: 1. The head with a convex ball design enhances the compatibility with the working surface and the uniformity of force distribution. At the same time, combined with the high wear resistance and erosion resistance of the outer composite ceramic material, it effectively solves the problems of easy wear, deformation and breakage of the existing stopper rod head, extends service life, reduces downtime replacement frequency, reduces production costs and ensures production continuity.

[0012] 2. The design adopts a layered material structure with outer, middle and inner layers, and an additional reinforcing skeleton between the outer and middle layers. This strengthens the interlayer connection and avoids the problems of interlayer peeling and cracking caused by thermal expansion and contraction or mechanical stress in existing structures. It also improves the overall structural resistance to deformation and reduces safety hazards such as molten metal leakage.

[0013] 3. The gas supply pipe, connection port and exhaust port form a continuous gas path. The diameter of the exhaust port gradually changes from the outside to the inside, which can accurately adjust the gas discharge speed and pressure. This solves the problems of poor gas flow, large pressure loss and low exhaust efficiency in the existing gas path, ensures the stability of gas regulation, reduces quality defects such as molten metal splashing and inclusions, and improves the quality of castings.

[0014] In summary, the layered material design of the outer, middle and inner layers, with an added reinforcing skeleton between the outer and middle layers, strengthens the interlayer connection strength, avoids the problems of interlayer peeling and cracking caused by thermal expansion and contraction or mechanical stress in existing structures, improves the overall structural resistance to deformation, and reduces safety hazards such as molten metal leakage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first structure of a head-reinforced integral stopper rod proposed in this utility model; Figure 2 This is a schematic diagram of the second structure of a head-reinforced integral stopper rod proposed in this utility model; Figure 3 This is a cross-sectional schematic diagram of a head-reinforced integral stopper rod proposed in this utility model; Figure 4 This is a cross-sectional view of a head-reinforced integral stopper rod proposed in this utility model.

[0016] In the diagram: 1. Rod body, 2. Connecting part, 3. Rod head, 4. Protruding ball, 5. Threaded mounting groove, 6. Gas supply pipe, 7. Connecting port, 8. Exhaust hole, 9. Outer layer, 10. Middle layer, 11. Inner layer, 12. Reinforcing skeleton. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figures 1-4 A head-reinforced integral stopper rod includes a rod body 1, which serves as the main structure of the integral stopper rod and provides an installation base and support for other components. A connecting part 2 is fixedly connected to the bottom of the rod body 1. The connecting part 2 is used to connect the rod body 1 and the rod head 3, so that the two form a stable integral structure. The end of the connecting part 2 away from the rod body 1 is fixedly connected to the rod head 3. The rod head 3 serves as the working part of the stopper rod and directly contacts the area to be acted upon. Multiple convex balls 4 are fixedly connected to the bottom of the rod head 3. The multiple convex balls 4 can enhance the interaction effect between the rod head 3 and the contact surface. The force is uniformly distributed by equal spacing. The multiple convex balls 4 are evenly distributed.

[0019] The top of the rod body 1 is provided with a threaded mounting groove 5. The threaded mounting groove 5 connects the stopper rod to the external driving component through the internal thread, which facilitates installation and fixation. The inner wall of the threaded mounting groove 5 is provided with internal threads. A gas supply pipe 6 is provided inside the rod body 1. The gas supply pipe 6 is used to transport gas. Its connection with the threaded mounting groove 5 allows external gas to enter the interior of the stopper rod through this pipe. The threaded mounting groove 5 is connected to the gas supply pipe 6. A connection port 7 and an exhaust hole 8 are provided on the rod body 1. The connection port 7 acts as a transfer port, guiding the gas in the gas supply pipe 6 to the exhaust hole 8. The gas supply pipe 6 is connected to the connection port 7. The connection port 7 is connected to the exhaust hole 8. The exhaust hole 8 is used to discharge the internal gas to the outside. Its diameter can be changed to adjust the flow rate and pressure of the discharged gas. The diameter of the exhaust hole 8 gradually decreases from the outside to the inside of the rod body 1.

[0020] The rod body 1, connecting part 2, and rod head 3 are made of the same material and are arranged from the outside to the inside as outer layer 9, middle layer 10, and inner layer 11. The outer layer 9, middle layer 10, and inner layer 11 work together to form the overall structure of the rod body 1, connecting part 2, and rod head 3, and jointly bear the structural strength and working performance requirements. The outer layer 9 is made of Al2O3-ZrO2-SiC composite ceramic, the middle layer 10 is made of Al2O3-MgO composite ceramic, and the inner layer 11 is made of Al2O3. A reinforcing skeleton 12 is provided between the outer layer 9 and the middle layer 10. The reinforcing skeleton 12 enhances the connection stability between the outer layer 9 and the middle layer 10, and improves the overall structural strength and deformation resistance. The two ends of the reinforcing skeleton 12 are connected to the outer layer 9 and the middle layer 10, respectively.

Claims

1. A head-reinforced integral stopper rod, comprising a rod body (1), characterized in that, The bottom of the rod body (1) is fixedly connected to a connecting part (2), and the end of the connecting part (2) away from the rod body (1) is fixedly connected to a rod head (3). The top of the rod body (1) is provided with a threaded mounting groove (5). The rod body (1) is provided with an air supply pipe (6). The rod body (1) is provided with a connection port (7) and an exhaust hole (8). The air supply pipe (6) is connected to the connection port (7). The connection port (7) and the exhaust hole (8) are connected. The rod body (1), the connecting part (2) and the rod head (3) are made of the same material and are arranged as an outer layer (9), a middle layer (10) and an inner layer (11) from the outside to the inside.

2. The head-reinforced integral stopper rod according to claim 1, characterized in that, The bottom of the rod head (3) is fixedly connected to a plurality of convex balls (4), which are distributed at equal intervals.

3. The head-reinforced integral stopper rod according to claim 1, characterized in that, The inner wall of the threaded mounting groove (5) is provided with an internal thread, and the threaded mounting groove (5) is connected to the gas pipeline (6).

4. The head-reinforced integral stopper rod according to claim 1, characterized in that, The diameter of the vent (8) gradually decreases from the outside of the rod (1) to the inside of the rod (1).

5. A head-reinforced integral stopper rod according to claim 1, characterized in that, The outer layer (9) is made of Al2O3-ZrO2-SiC composite ceramic, the middle layer (10) is made of Al2O3-MgO composite ceramic, and the inner layer (11) is made of Al2O3.

6. A head-reinforced integral stopper rod according to claim 5, characterized in that, A reinforcing skeleton (12) is provided between the outer layer (9) and the middle layer (10), and the two ends of the reinforcing skeleton (12) are connected to the outer layer (9) and the middle layer (10) respectively.

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