Emergency winding device for converter slag car
Patent Information
- Application Number
- CN202522479866.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-11-24
AI Technical Summary
卷扬机在配合渣车行走系统或喷渣工况故障时快速牵引渣臂回位过程中，转炉喷渣时，熔渣温度可达上千度，即使卷扬机安装在轨道旁，仍会受到高温辐射，长时间使用后卷扬机的驱动部件会出现老化加速，电机绝缘等级下降易引发短路，直接降低牵引力输出等情况，并且钢丝绳受热后力学性能变化，高温会降低钢丝绳的抗拉强度，若同时接触喷溅的熔渣颗粒，易引发局部过热脆化，增加断裂风险
1、本实用新型提供一种转炉渣车应急卷扬装置，对应钢丝绳的释放过程设置齿轮齿条机构触发反向传动，使得钢丝绳在释放传动对渣车进行牵引的过程中，能够将防护壳二向下推动覆盖在防护壳一的顶部，形成封闭防护空间，能阻挡高温直接侵袭内部的驱动电机、收卷筒、钢丝绳，同时减少高温飞溅物直接撞击部件，延缓部件老化速度，降低核心部件的故障发生率，保障卷扬机应急牵引功能的有效性。
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Figure CN224869759U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safety technology for metallurgical smelting equipment, and in particular to an emergency hoisting device for converter slag cars. Background Technology
[0002] In the converter steelmaking process, the slag car is a key auxiliary device used to receive the high-temperature molten slag generated during the converter smelting process. Its core function relies on the mechanical drive (such as motors and reducers) and electrical control system (such as PLCs and sensors) of the slag car's traveling mechanism to achieve precise positioning and safe operation. When slag is sprayed in the converter (such as due to improper operation of the oxygen lance or backflow of high-temperature gas from the furnace mouth causing molten slag to splash), the high-temperature molten slag may directly act on the slag car arm. If the slag car cannot be retracted in time, the slag arm will be exposed to the high-temperature environment for a long time, which is prone to structural damage such as "bending" or "burning". At this time, it is necessary to use a winch to quickly pull the slag arm back to its position when the slag car traveling system or slag spraying condition fails, so as to avoid the slag arm being damaged by high temperature for a long time.
[0003] The existing technology has the following problems: When the winch is used in conjunction with the slag car traveling system or when there is a malfunction in the slag spraying operation, it is necessary to quickly pull the slag arm back to its position. During the slag spraying in the converter, the temperature of the molten slag can reach thousands of degrees. Even if the winch is installed next to the track, it will still be exposed to high temperature radiation. After long-term use, the drive components of the winch will age faster, the insulation level of the motor will decrease, which may easily cause short circuits and directly reduce the traction output. In addition, the mechanical properties of the wire rope will change after being heated. High temperature will reduce the tensile strength of the wire rope. If it comes into contact with splashed molten slag particles at the same time, it may easily cause local overheating and embrittlement, increasing the risk of breakage. Utility Model Content
[0004] This invention provides an emergency hoisting device for converter slag cars to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An emergency winch device for a converter slag car includes a mounting base and a fixed pulley. A drive motor is fixedly installed on the middle of both sides of the mounting base. A winding drum is rotatably connected to the top of the mounting base. The drive ends of the drive motors on both sides are fixedly connected to the middle of the winding drum. A steel wire rope is wound around the outer wall of the winding drum. The end of the steel wire rope away from the winding drum is wound around the outer wall of the fixed pulley and fixedly connected to a hook. The mounting base is provided with a heat insulation protection mechanism on its outer side and a spray protection mechanism on its top.
[0006] Preferably, the heat insulation and protection mechanism includes a first protective shell and a second protective shell. The second protective shell is hinged to the top of the first protective shell. The first protective shell is fixedly installed on the top of the mounting base. A hollow frame is fixedly installed on the front left side of the first protective shell. A connector is fixedly connected to the top of the end of the wire rope away from the winding drum. The connector is slidably connected to the top of the hollow frame. A rubber toothed plate is fixedly connected to the top of the connector. A transmission gear is rotatably connected to the middle of the front side of the first protective shell.
[0007] Preferably, the hollow frame has horizontal grooves on both the left and right sides, and C-shaped frames are slidably connected to the inner walls of the horizontal grooves on both sides. Rubber toothed plates are fixedly connected to the top of the C-shaped frames on both sides, and the rubber toothed plates and rubber toothed plates are meshed with the transmission gears.
[0008] Preferably, an arc-shaped plate is fixedly connected to one end of the second rubber toothed plate near the first protective shell. The arc-shaped plate is fixedly connected to the outer wall of the second protective shell. A square hole is opened in the middle of the rear side of the first and second protective shells. A perforated plate is fixedly installed on the rear side of the first protective shell, and the perforated plate covers the outer wall of the square hole.
[0009] Preferably, the spray protection mechanism includes an annular pipe, with a through hole at the lower part of the annular pipe where the steel wire rope is located. The annular pipe is hinged inside the through hole, and the steel wire rope passes through the middle of the annular pipe. Several nozzles are evenly fixedly connected to the inner wall of the annular pipe.
[0010] Preferably, a delivery pipe is provided through the bottom of the nozzle, the delivery pipe extends through and to the rear side of the protective shell, and a liquid pump is fixedly installed at the end of the delivery pipe away from the nozzle, and an inlet pipe is fixedly connected to the input end of the liquid pump.
[0011] Preferably, a control button is fixedly installed on the top of the protective shell, and mounting parts are fixedly installed on the middle of both sides of the fixed pulley. The control button is electrically connected to the drive motor and the liquid pump.
[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model provides an emergency winch device for converter slag cars. A gear and rack mechanism is set up to trigger reverse transmission during the release process of the wire rope. This allows the protective shell two to be pushed downwards and covered on top of the protective shell one during the release transmission of the wire rope to pull the slag car, forming a closed protective space. This space can prevent high temperature from directly invading the internal drive motor, winding drum, and wire rope. At the same time, it reduces the direct impact of high temperature splashes on the components, slows down the aging of the components, reduces the failure rate of core components, and ensures the effectiveness of the winch's emergency traction function.
[0013] 2. This utility model provides an emergency hoisting device for converter slag cars. A heat-insulating protective liquid is sprayed onto the outer wall of the wire rope along the release path. The liquid evaporates quickly to remove heat from the surface of the wire rope, achieving immediate cooling and preventing the wire rope from deteriorating due to high temperature. At the same time, some of the heat-insulating protective liquid forms a thin film on the surface of the wire rope, reducing direct heat exchange between the high-temperature environment and the wire rope, and continuously playing a heat-insulating role to ensure the structural strength and traction safety of the wire rope during the traction process. Attached Figure Description
[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2 This is a top view of the internal structure of the protective shell one and the protective shell two of this utility model; Figure 3 This is a front view schematic diagram of the overall structure of this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the internal structure of the protective shell one and the protective shell two of this utility model; Figure 6 This is a bottom view of the overall structure of this utility model; Figure 7 for Figure 6 Enlarged diagram of point B in the middle.
[0015] In the diagram: 1. Mounting base; 2. Drive motor; 3. Winding drum; 4. Wire rope; 5. Fixed pulley; 6. Hook; The heat insulation and protection mechanism includes: 71. Protective shell one; 72. Protective shell two; 73. Hollow frame; 74. Connecting parts; 75. Rubber toothed plate one; 76. Transmission gear; 77. Rubber toothed plate two; 78. Arc plate; 79. C-shaped frame; 710. Horizontal groove; 711. Perforated plate; The sprinkler protection mechanism includes: 81. Ring pipe; 82. Sprinkler head; 83. Delivery pipe; 84. Liquid pump; 85. Liquid inlet pipe; 9. Control buttons; 10. Mounting components. Detailed Implementation
[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0017] like Figure 1 - Figure 7As shown, an emergency hoisting device for a converter slag car includes a mounting base 1 and a fixed pulley 5. A drive motor 2 is fixedly installed on the middle of both sides of the mounting base 1. A winding drum 3 is rotatably connected to the top of the mounting base 1. The drive ends of the drive motors 2 on both sides are fixedly connected to the middle of the winding drum 3. A steel wire rope 4 is wound around the outer wall of the winding drum 3. The end of the steel wire rope 4 away from the winding drum 3 is wound around the outer wall of the fixed pulley 5 and fixedly connected to a hook 6. Mounting parts 10 are fixedly installed on the middle of both sides of the fixed pulley 5. The outer side of the mounting base 1 is provided with a heat insulation protection mechanism, and the top of the mounting base 1 is provided with a spray protection mechanism.
[0018] It should be noted that a winch is added next to the slag car via mounting bracket 1. The winch is equipped with overload protection (such as a torque limiter) and travel limit (such as a wire rope length sensor) to prevent excessive traction from damaging the slag arm or breaking the wire rope. At the same time, the connection point between the wire rope and the slag arm adopts an anti-slip design (such as an anti-detachment hook) to ensure reliable traction. The wire rope 4 is used to establish a connection with the slag arm of the slag car. In the event of a failure in the walking system or slag spraying, the slag arm is quickly pulled back to its original position to avoid damage caused by prolonged exposure to high temperatures. The drive motor 2 drives the winding drum 3 to rotate alternately in both directions to wind up and unwind the wire rope 4. The fixed pulley 5 is installed on the outer wall of the slag car via mounting part 10, and the hook 6 is fitted on the preset lifting position of the slag arm of the slag car (such as the front or middle of the slag arm reinforcement lug) to ensure that the traction point is evenly stressed.
[0019] like Figure 1 - Figure 3 As shown, the heat insulation and protection mechanism includes a protective shell 71 and a protective shell 72. The protective shell 72 is hinged to the top of the protective shell 71. The protective shell 71 is fixedly installed on the top of the mounting base 1. A hollow frame 73 is fixedly installed on the front left side of the protective shell 71. A connector 74 is fixedly connected to the top of the end of the wire rope 4 away from the winding drum 3. The connector 74 is slidably connected to the top of the hollow frame 73. A rubber toothed plate 75 is fixedly connected to the top of the connector 74. A transmission gear 76 is rotatably connected to the middle of the front side of the protective shell 71.
[0020] It should be noted that when the winch is not in use, the second protective shell 72 is hinged to the top of the first protective shell 71 and is in an open state. When the walking system or slag spraying operation fails and it is necessary to quickly pull the slag arm back to its position, the wire rope 4 on the outer wall of the winding drum 3 in the winch is released. As the release process proceeds, the connecting piece 74 moves synchronously with the wire rope and drives the rubber toothed plate 75 to move along the top of the hollow frame 73 toward the slag car side, thereby triggering the transmission gear 76 to rotate in the middle of the first protective shell 71.
[0021] like Figure 2 , Figure 3 and Figure 5As shown, the hollow frame 73 has horizontal grooves 710 on both the left and right sides. C-shaped frames 79 are slidably connected to the inner walls of the horizontal grooves 710 on both sides. Rubber toothed plates 77 are fixedly connected to the top of the C-shaped frames 79 on both sides. Rubber toothed plates 77 and 75 are meshed with the transmission gear 76.
[0022] It should be noted that as the transmission gear 76 rotates, it drives the rubber toothed plate 77 meshing on its top to move, and with the assistance of the C-shaped brackets 79 on both sides, it slides along the inner wall of the transverse grooves 710 on both sides.
[0023] like Figure 1 and Figure 5 As shown, an arc-shaped plate 78 is fixedly connected to one end of the rubber toothed plate 77 near the protective shell 71. The arc-shaped plate 78 is fixedly connected to the outer wall of the protective shell 72. A square hole is opened in the middle of the rear side of the protective shell 71 and the protective shell 72. A perforated plate 711 is fixedly installed on the rear side of the protective shell 71, and the perforated plate 711 covers the outer wall of the square hole.
[0024] It should be noted that the rubber toothed plate 77 moves away from the slag car under the action of the transmission gear 76, and generates a downward rotational force on the protective shell 72 through the arc plate 78. This allows the core components of the traction machine to be protected during the traction of the slag car. At the same time, the heat generated by the friction of the wire rope 4 during the release process can be dissipated through the square hole and finally released to the outside by the perforated plate 711.
[0025] like Figure 4 , Figure 6 - Figure 7 As shown, the spray protection mechanism includes an annular pipe 81. A through hole is provided at the lower part of the annular pipe 81, at the position of the steel wire rope 4. The annular pipe 81 is hinged inside the through hole. The steel wire rope 4 passes through the middle of the annular pipe 81. Several nozzles 82 are evenly fixedly connected around the inner wall of the annular pipe 81. A delivery pipe 83 is provided through the bottom of the nozzles 82. The delivery pipe 83 passes through and extends to the rear side of the protective shell 71. A liquid pump 84 is fixedly installed at the end of the delivery pipe 83 away from the nozzles 82. An inlet pipe 85 is fixedly connected to the input end of the liquid pump 84. The input end of the inlet pipe 85 is set to be open, so that it can be connected to the corresponding storage container during use. A control button 9 is fixedly installed on the top of the protective shell 71. The control button 9 is electrically connected to the drive motor 2 and the liquid pump 84.
[0026] It should be noted that the wire rope 4 is wound or released outward along the inner wall of the through hole. During this process, as the drive motor 2 is operated, the liquid pump 84 is turned on synchronously under the control of the electrical signal. The liquid pump 84 draws heat insulation protective liquid from the storage tank through the liquid inlet pipe 85 and transmits it to the inside of the annular pipe 81 through the delivery pipe 83. Finally, it is output by each nozzle 82 and evenly covers the outer wall of the wire rope 4.
[0027] The working principle of this utility model: A winch is added next to the slag car by mounting bracket 1. The wire rope 4 is connected to the slag arm of the slag car. In case of malfunction of the walking system or slag spraying, the slag arm is quickly pulled back to its position to avoid damage to the slag arm due to prolonged exposure to high temperature. The drive motor 2 drives the winding drum 3 to rotate in both directions to realize the winding and unwinding of the wire rope 4. The fixed pulley 5 is installed on the outer wall of the slag car through the mounting part 10, and the hook 6 is set in the preset lifting position of the slag arm of the slag car (such as the front end or middle of the slag arm reinforcement lug) to ensure that the traction point is evenly stressed. By interlocking the emergency traction button 9 with the converter control system, it is ensured that the power supply can still be independent when the slag car walking system loses power or malfunctions, thus realizing the one-button start function. When the winch is not in use, the second protective shell 72 is hinged to the top of the first protective shell 71 and is in an open state. When the walking system or slag spraying operation fails and the slag arm needs to be quickly pulled back to its position, the operator presses the emergency traction button 9, the winch is powered on and started, and the wire rope 4 on the outer wall of the winding drum 3 in the winch is released. As the release process proceeds, the connecting piece 74 moves synchronously with the wire rope and drives the rubber toothed plate 75 to move along the top of the hollow frame 73 toward the slag car side, thereby triggering the transmission gear 76 to rotate in the middle of the first protective shell 71. As the transmission gear 76 rotates, it drives the rubber toothed plate 77 meshed on its top to move and slides along the inner wall of the transverse grooves 710 on both sides with the assistance of the C-shaped frames 79 on both sides. Rubber toothed plate 77 moves away from the slag car under the action of transmission gear 76, and exerts a downward rotational force on protective shell 72 through arc plate 78. This protects the core components of the traction machine during the traction of the slag car. At the same time, the heat generated by friction during the release of wire rope 4 can be dissipated through the square hole and finally released to the outside through perforated plate 711. Wire rope 4 is wound or released outward along the inner wall of the through hole. During this process, with the operation of the aforementioned drive motor 2, the liquid pump 84 is simultaneously turned on by the electrical signal, and liquid is introduced. Pipe 85 draws heat-insulating protective liquid from the storage tank and delivers it to the inside of the annular pipe 81 through the delivery pipe 83. Finally, it is output by each nozzle 82 and evenly covers the outer wall of the wire rope 4. The liquid evaporates quickly to remove the heat from the surface of the wire rope 4, achieving instant cooling and preventing the material properties of the wire rope 4 from deteriorating due to high temperature. At the same time, some of the heat-insulating protective liquid will form a thin film on the surface of the wire rope 4, reducing the direct heat exchange between the high temperature environment and the wire rope 4, and continuously playing a heat-insulating role to ensure the structural strength and traction safety of the wire rope 4 during the traction process. After the slag arm enters the converter, it is quickly hooked by the hook 6 at the end of the wire rope 4. The winch is started to wind the wire rope 4 in the opposite direction to pull the slag arm out of the converter, so as to avoid it being corroded by high-temperature molten slag for a long time.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An emergency hoisting device for converter slag cars, comprising a mounting base (1) and a fixed pulley (5), characterized in that: A drive motor (2) is fixedly installed on the middle of both sides of the mounting base (1). A winding drum (3) is rotatably connected to the top of the mounting base (1). The drive ends of the drive motors (2) on both sides are fixedly connected to the middle of the winding drum (3). A wire rope (4) is wound around the outer wall of the winding drum (3). The end of the wire rope (4) away from the winding drum (3) is wound around the outer wall of the fixed pulley (5) and fixedly connected to a hook (6). The mounting base (1) is provided with a heat insulation protection mechanism on its outer side and a spray protection mechanism on its top.
2. The emergency hoisting device for a converter slag car according to claim 1, characterized in that: The heat insulation and protection mechanism includes a protective shell one (71) and a protective shell two (72). The protective shell two (72) is hinged to the top of the protective shell one (71). The protective shell one (71) is fixedly installed on the top of the mounting base (1). A hollow frame (73) is fixedly installed on the front left side of the protective shell one (71). A connector (74) is fixedly connected to the top of the end of the wire rope (4) away from the winding drum (3). The connector (74) is slidably connected to the top of the hollow frame (73). A rubber toothed plate one (75) is fixedly connected to the top of the connector (74). A transmission gear (76) is rotatably connected to the middle of the front side of the protective shell one (71).
3. The emergency hoisting device for a converter slag car according to claim 2, characterized in that: The hollow frame (73) has horizontal grooves (710) on both the left and right sides. C-shaped frames (79) are slidably connected to the inner walls of the horizontal grooves (710) on both sides. Rubber toothed plates (77) are fixedly connected to the top of the C-shaped frames (79) on both sides. The rubber toothed plates (77) and (75) are meshed with the transmission gear (76).
4. The emergency hoisting device for a converter slag car according to claim 3, characterized in that: An arc-shaped plate (78) is fixedly connected to one end of the rubber toothed plate (77) near the protective shell (71). The arc-shaped plate (78) is fixedly connected to the outer wall of the protective shell (72). A square hole is opened in the middle of the rear side of the protective shell (71) and the protective shell (72). A perforated plate (711) is fixedly installed on the rear side of the protective shell (71), and the perforated plate (711) covers the outer wall of the square hole.
5. The emergency hoisting device for a converter slag car according to claim 1, characterized in that: The spray protection mechanism includes an annular pipe (81), with a through hole at the lower part of the annular pipe (81) located at the position of the steel wire rope (4). The annular pipe (81) is hinged inside the through hole. The steel wire rope (4) passes through the middle part of the annular pipe (81). Several nozzles (82) are evenly fixedly connected around the inner wall of the annular pipe (81).
6. The emergency hoisting device for a converter slag car according to claim 5, characterized in that: A delivery pipe (83) is provided through the bottom of the nozzle (82). The delivery pipe (83) extends through and to the rear side of the protective shell (71). A liquid pump (84) is fixedly installed at the end of the delivery pipe (83) away from the nozzle (82). An inlet pipe (85) is fixedly connected to the input end of the liquid pump (84).
7. The emergency hoisting device for a converter slag car according to claim 6, characterized in that: A control button (9) is fixedly installed on the top of the protective shell (71), and mounting parts (10) are fixedly installed on the middle of both sides of the fixed pulley (5). The control button (9) is electrically connected to the drive motor (2) and the liquid pump (84).