Accidental cutting bracket for continuous casting round billets

Abstract

The utility model belongs to the technical field of steelmaking equipment, and discloses a continuous casting round billet accident cutting bracket which can be connected with a flame cutting gun and can also be detachably arranged on a high-temperature round billet transported on a continuous casting round billet forming production line in a clamped mode. The cutting bracket comprises a supporting frame, a bearing, a shaft, a fixing piece and a shaft sleeve. The supporting frame on the cutting bracket is stably arranged on the high-temperature round blank conveyed on the continuous casting round blank forming production line in a clamped mode, so that the flame cutting gun, the cutting bracket and the high-temperature round blank can move at the same speed, and the phenomenon of turning due to the fact that the relative movement speed of the flame cutting gun, the cutting bracket and the high-temperature round blank is too low or too high in the cutting process is avoided; the life safety of workers is guaranteed, and plant fire accidents are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of steelmaking equipment, in particular to an accident cutting bracket for continuous casting round billets. Background Art

[0002] At present, continuous casting round billets are mainly used for producing seamless steel pipes with different diameters. When the round billets are pierced through the pipes, it is required that the billets have no surface and internal cracks, and it is necessary to prevent defects on the inner surface of the steel pipes caused by large particle inclusions. Continuous casting of round billets refers to a continuous steelmaking and ironmaking technology mainly used for producing billets for seamless steel pipes. Continuous casting production is a complex process, involving extreme conditions such as high temperature, high pressure, and high speed, and has very high requirements for equipment, processes, and operators. Once a problem occurs in a certain link, accidents may be triggered. The skill level, safety awareness, operation specifications, etc. of the operators may all affect the safety of production. Improper operation, carelessness, and violation of operation regulations may all trigger accidents.

[0003] During the actual operation process, for the high-temperature round billets on the continuous casting round billet forming production line, after they are solidified and produced from the mold, when they are transported on the production line, their surface temperature is relatively high. Due to improper crystallization operation, etc., irregular and discontinuous textures or patterns may appear on the surface of the round billets, and even accidents such as round billet rupture or steel leakage may occur. Therefore, it is necessary to cut the defective round billet segments. At present, this kind of operation is mainly carried out manually. Generally, the operator holds the end of the body of the flame cutting gun, and cuts the defective round billet segment up and down through the nozzle at the other end of the flame cutting gun to cut and remove the unqualified round billets. During this process, the moving speed of the operator should be consistent with the transportation speed of the high-temperature round billets, so as to ensure that the nozzle of the flame cutting gun can cut from the incision of the high-temperature round billets to its bottom, thereby ensuring the smooth progress of the cutting. However, this kind of operation has relatively high requirements for the cutting speed and proficiency of the operator. If the moving speed of the staff and the round billets is different during the cutting process, or if there are operation mistakes such as cutting too fast or too slow, the "flowering" phenomenon will occur, causing the steel flowers to splash, scalding the staff, and even causing a fire in the workshop in severe cases, resulting in huge casualties and equipment losses.

[0004] Therefore, it is urgent to design one or several new devices to enable the staff to synchronize with the moving speed of the high-temperature round billets, so as to reduce the change in the cutting amplitude, avoid the occurrence of the "flowering" phenomenon, and protect the safety of the staff and the production process. Summary of the Invention

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a portable electrostatic spraying device, method and application.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A continuous casting round billet accident cutting bracket, the cutting bracket can be connected with a flame cutting gun, and the cutting bracket can also be detachably clamped on a high-temperature round billet transported on a continuous casting round billet forming production line;

[0008] The flame cutting gun includes a cutting gun body, a nozzle and a nozzle nut, and the nozzle and the cutting gun body are detachably connected through the nozzle nut;

[0009] The cutting bracket includes a support frame, bearings, a shaft, a fixing member and a bushing. The shaft is arranged horizontally. Bearings are connected to both horizontal ends of the shaft, and the bearings at both ends are symmetrically arranged horizontally. The bearings are coaxial with the shaft, and the bearings and the shaft are cooperatively arranged. A bushing is arranged between the bearings and the shaft, and the bushing is coaxially connected to the bearings and the shaft;

[0010] The support frame is arranged vertically, and the top of the support frame is fixedly connected to the lower bottom surface of the bearing;

[0011] The fixing member is perpendicularly connected to the shaft, and the fixing member can be connected with the flame cutting gun.

[0012] Further, the support frame includes two support columns, the tops of the two support columns are connected, the top of the support column is fixedly connected to the bearing, and the middle and lower parts of the support column can be clamped on the high-temperature round billet transported on the continuous casting round billet forming production line.

[0013] Further, the included angle between the two support columns of the support frame is set to 60 degrees.

[0014] Further, the fixing member is detachably connected to the cutting gun body.

[0015] Further, a connection through hole is coaxially formed in the fixing member, internal threads are provided on the fixing member in the connection through hole, external threads are provided on the outer surface of the cutting gun body, the internal threads and the external threads are matched, and the fixing member is coaxially engaged and installed on the outer surface of the cutting gun body through the connection through hole, the internal threads and the external threads.

[0016] Further, the material of the support frame is a high-temperature resistant material, so that the bracket is clamped on the high-temperature round billet and is not easily damaged.

[0017] Further, the materials of the support frame, bearings, shaft and fixing member are all made of high-strength steel.

[0018] Further, the high-strength steel is Q460 steel or martensitic heat-resistant steel.

[0019] The advantages and positive effects obtained by the present utility model are:

[0020] 1. When the present utility model's cutting bracket is in use, when there are production defects in the high-temperature round billets transported on the continuous casting round billet forming production line, the flame cutting gun body is installed together with the fixing member, so that the flame cutting gun can be fixed on the cutting bracket through the fixing member. Then, the operator holds the flame cutting gun and stably engages the support frame on the cutting bracket with the high-temperature round billet transported on the continuous casting round billet forming production line, ensuring that the flame cutting gun, the cutting bracket, and the high-temperature round billet can move at the same speed. Then, the operator starts the flame cutting gun and uses the nozzle for cutting operations. Since the shaft is vertically connected to the fixing member, when the operator performs the cutting operation, the operator can control the flame cutting direction of the nozzle by rotating the shaft to move it up and down in the vertical direction for cutting, thereby cutting the defective section on the round billet. After cutting is completed, the cutting bracket is removed from the high-temperature round billet by holding the flame cutting gun. Since the cutting bracket and the high-temperature round billet are detachably engaged, the cutting bracket can be easily removed, and the operation is simple and convenient.

[0021] This cutting bracket includes a support frame, a bearing, a shaft, a fixing member, and a shaft sleeve. The support frame can stably engage the entire cutting bracket on the high-temperature round billet, facilitating subsequent operations. The cutting bracket can be connected to the flame cutting gun. The cutting bracket can also be detachably and stably engaged on the high-temperature round billet transported on the continuous casting round billet forming production line. During the cutting operation, the up and down movement of the nozzle of the flame cutting gun is adjusted by rotating the shaft for cutting operations. This cutting bracket has a simple structure and is convenient for production and manufacturing. At the same time, it ensures the same-speed movement of the flame cutting gun, the cutting bracket, and the high-temperature round billet. The operator only needs to hold the flame cutting gun by hand, which not only reduces the operator's work intensity and improves work efficiency but also avoids the "flowering" phenomenon caused by the relative movement speed with the high-temperature round billet being too slow or too fast during the cutting process, ensuring the safety of the staff and preventing the occurrence of factory building fire accidents.

[0022] 2. This cutting bracket is engaged on the high-temperature round billet through the support frame, ensuring the same-speed movement of the flame cutting gun, the cutting bracket, and the round billet, avoiding the "flowering" phenomenon caused by the relative movement speed with the round billet being too slow or too fast during the cutting process, ensuring the safety of the staff and preventing the occurrence of factory building fire accidents.

[0023] 3. Through the connection of the shaft, the fixing member, and the flame cutting gun of this cutting bracket, the operator can move the flame cutting vertically up and down by rotating the shaft, cutting the defective section on the round billet, avoiding the "flowering" phenomenon caused by too large a cutting amplitude, ensuring the safety of the staff and preventing the occurrence of factory building fire accidents.

[0024] 4. The material of this cutting bracket is a high-temperature resistant material. The support frame, bearings, shaft, and fixing parts are all made of high-strength steel, which can enhance the fire resistance of this device and the structural strength of the device.

[0025] 5. By connecting the cutting bracket to the body of the flame cutting gun through the fixing parts, it can prevent the flame cutting gun from falling off the cutting bracket, thus avoiding mistakes in cutting work and damage to the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of a use state of the cutting bracket of the present utility model;

[0027] Figure 2 is Figure 1 an enlarged schematic diagram of a structural connection of the cutting bracket in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present invention will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not restrictive, and the protection scope of the present invention cannot be limited thereby.

[0029] The raw materials used in the present invention are all conventional commercially available products without special instructions. The methods used in the present invention are all conventional methods in the art without special instructions. The masses of various substances used in the present invention are all conventional usage masses. The structures, connection relationships, etc. not described in detail in the present invention can be understood as conventional technical means in the art.

[0030] A continuous casting round billet accident cutting bracket, as Figures 1 to 2 shown, the cutting bracket 1 can be connected to the flame cutting gun 2. The cutting bracket can also be detachably clamped on the high-temperature round billet 3 transported on the continuous casting round billet forming production line;

[0031] The flame cutting gun includes a cutting gun body 9, a nozzle 10, and a nozzle nut 11. The nozzle and the cutting gun body are detachably connected through the nozzle nut;

[0032] The cutting bracket includes a support frame 4, bearings 5, a shaft 6, fixing parts 7, and a shaft sleeve 8. The shaft is arranged horizontally. Bearings are connected to both horizontal ends of the shaft, and the bearings at both ends are symmetrically arranged horizontally. The bearings and the shaft are coaxial. The bearings and the shaft are mutually matched. The shaft can rotate along the horizontal center line of the shaft on the bearings. A shaft sleeve is arranged between the bearings and the shaft. The shaft sleeve is coaxially connected to the bearings and the shaft. The setting of the shaft sleeve reduces the frictional loss caused by the rotation between the bearings and the shaft, extends the service life, and reduces the production cost of the enterprise;

[0033] The support frame is arranged vertically, and the top of the support frame is fixedly connected to the lower bottom surface of the bearing. The support frame can be stably clamped on the high-temperature round billet transported on the continuous casting round billet forming production line. The setting of the support frame enables the cutting bracket to be stably clamped on the high-temperature round billet as a whole, thus facilitating subsequent operations.

[0034] The fixing member is vertically connected to the shaft. The fixing member can be connected to the flame cutting gun. The fixing member can rotate simultaneously with the shaft while the shaft rotates, and thus can drive the nozzle of the flame cutting gun to rotate simultaneously with the shaft, so as to facilitate the nozzle to perform corresponding cutting operations on the high-temperature round billet below it.

[0035] When the present utility model's cutting bracket is in use, when a production defect occurs in the high-temperature round billet transported on the continuous casting round billet forming production line, the flame cutting gun body is installed together with the fixing member, so that the flame cutting gun can be fixed on the cutting bracket through the fixing member. Then, the operator holds the flame cutting gun and stably clamps the support frame on the cutting bracket on the high-temperature round billet transported on the continuous casting round billet forming production line, so that the flame cutting gun, the cutting bracket, and the high-temperature round billet can move at the same speed. Then, the operator starts the flame cutting gun and uses the nozzle to perform cutting operations. Since the shaft and the fixing member are vertically connected, when the operator performs cutting operations, the operator can control the flame cutting direction of the nozzle by rotating the shaft to move up and down vertically for cutting, so that the defective section on the round billet is cut open. After cutting is completed, the cutting bracket is removed from the high-temperature round billet by holding the flame cutting gun. Since the cutting bracket and the high-temperature round billet are detachably clamped, the cutting bracket can be easily removed, and the operation is simple and convenient.

[0036] This cutting bracket includes a support frame, a bearing, a shaft, a fixing member, and a shaft sleeve. The support frame can stably clamp the cutting bracket as a whole on the high-temperature round billet, thus facilitating subsequent operations. The cutting bracket can be connected to the flame cutting gun. The cutting bracket can also be stably clamped and detachably arranged on the high-temperature round billet transported on the continuous casting round billet forming production line. During cutting operations, the up and down movement of the nozzle of the flame cutting gun is adjusted by rotating the shaft for cutting operations. This cutting bracket has a simple structure, is convenient to produce and manufacture. At the same time, it ensures the same-speed movement of the flame cutting gun, the cutting bracket, and the high-temperature round billet. The operator only needs to hold the flame cutting gun by hand, which not only reduces the operator's work intensity and improves work efficiency, but also avoids the "flowering" phenomenon caused by the relative movement speed of the high-temperature round billet being too slow or too fast during cutting, ensuring the safety of the staff and avoiding the occurrence of factory building fire accidents.

[0037] In this embodiment, the support frame includes two support columns 12, the tops of the two support columns are connected, the top of the support column is fixedly connected to the bearing, and the middle and lower parts of the support column can be clamped on the high-temperature round billet transported on the continuous casting round billet forming production line. The two support columns and the round billet form a triangular structure, which enhances the stability of the clamping, ensures the normal operation, and improves the production efficiency.

[0038] Preferably, the included angle between the two support columns of the support frame is set to 60 degrees, so that the support columns can clamp the continuous casting high-temperature round billet to the greatest extent, ensuring the structural stability of the support frame.

[0039] In this embodiment, the fixing member is detachably connected to the cutting gun body, which is convenient for the installation of the equipment and the use of the staff.

[0040] Preferably, a connection through hole (not labeled in the figure) is coaxially formed in the fixing member, an internal thread (not shown in the figure) is provided on the fixing member in the connection through hole, an external thread (not shown in the figure) is provided on the outer surface of the cutting gun body, and the internal thread and the external thread are matched. The fixing member is coaxially engaged and installed on the outer surface of the cutting gun body through the connection through hole, the internal thread and the external thread, which enhances the connection strength. At the same time, the fixing member is detachably connected to the cutting gun body, which is convenient for installation and disassembly and brings great convenience to the use.

[0041] In this embodiment, the material of the support frame is a high-temperature resistant material, so that the bracket can be clamped on the high-temperature round billet without being easily damaged.

[0042] In this embodiment, the support frame, the bearing, the shaft, and the fixing member are all made of high-strength steel, which can enhance the fire resistance of the device and the structural strength of the device.

[0043] Preferably, the high-strength steel is Q460 steel or martensitic heat-resistant steel, which can enhance the fire resistance of the device and the structural strength of the device.

[0044] Although the embodiments of the present invention are disclosed for illustrative purposes, those skilled in the art can understand that: various substitutions, changes, and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the content disclosed in the embodiments.

Claims

1. A bracket for cutting accidental continuous casting round billets, characterized in that: The cutting bracket can be connected to the flame cutting gun, and the cutting bracket can also be detachably mounted on the high-temperature round billet transported on the continuous casting round billet forming production line; The flame cutting gun comprises a cutting gun body, a nozzle and a nozzle nut, wherein the nozzle and the cutting gun body are detachably connected via the nozzle nut; The cutting bracket includes a support frame, a bearing, a shaft, a fixing member and a sleeve, the shaft is arranged in a horizontal direction, the horizontal ends of the shaft are connected to the bearings and the bearings at both ends are symmetrically arranged in the horizontal direction, the bearings and the shaft are arranged coaxially, the bearings and the shaft are arranged in cooperation with each other, a sleeve is arranged between the bearing and the shaft, and the sleeve is connected to the bearing and the shaft coaxially; The support frame is arranged in the vertical direction, and the top of the support frame is fixedly connected to the lower bottom surface of the bearing; The fixing piece is vertically connected to the shaft and can be connected to the flame cutting gun.

2. The continuous casting round billet emergency cutting bracket according to claim 1, characterized in that: The support frame includes two support columns, the tops of the two support columns are connected to each other, the tops of the support columns are fixedly connected to the bearings, and the middle and lower parts of the support columns can be snap-fitted onto the high-temperature round blanks transported on the continuous casting round blank forming production line.

3. The continuous casting round billet emergency cutting bracket according to claim 2, characterized in that: The intersection angle of the two support columns of the support frame is set to 60 degrees.

4. The continuous casting round billet emergency cutting bracket according to claim 1, characterized in that: The fixing piece is detachably connected to the cutting gun body.

5. The continuous casting round billet emergency cutting bracket according to claim 4, characterized in that: A connecting through hole is coaxially formed inside the fixing piece, an internal thread is arranged on the fixing piece in the connecting through hole, an external thread is arranged on the outer surface of the cutting gun body, the internal thread and the external thread are matched, and the fixing piece is installed on the outer surface of the cutting gun body through the coaxial engagement of the connecting through hole, the internal thread and the external thread.

6. The continuous casting round billet emergency cutting bracket according to claim 1, characterized in that: The support frame is made of high temperature resistant material.

7. A continuous casting round billet emergency cutting bracket according to any one of claims 1 to 6, characterized in that: The support frame, bearings, shafts and fixing parts are all made of high-strength steel.

8. The bracket for emergency cutting of continuous casting round billet according to claim 7, characterized in that: The high-strength steel is Q460 steel or martensitic heat-resistant steel.

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