A stopper rod transfer device

Abstract

This application relates to a stopper rod transfer device, belonging to the field of casting technology. It includes a hanger with a socket at its bottom for inserting the end of a stopper rod. A motor is fixedly connected to the hanger, and the motor's output end is slidably connected to an upper plate via a keyway structure. A lower plate is slidably connected inside the hanger, and multiple guide rods are fixed to the lower plate. The guide rods pass through the upper plate and are slidably connected to it. A spring is provided between the upper and lower plates. A retaining ring is fixed inside the hanger, and the top surface of the upper plate slidably abuts against the bottom surface of the retaining ring. A threaded block is fixed to the bottom of the lower plate, located within the socket, and the threaded block is adapted to the threaded hole at the end of the stopper rod. This application uses the threaded block to thread the stopper rod to the threaded hole at its end, thereby lifting the stopper rod and improving its adaptability to stoppers with smooth outer walls. The hook facilitates the installation and use of the hanger and can be adapted to any lifting equipment. The retainer and arc-shaped plate improve the safety of lifting the stopper rod.

Description

Technical Field

[0001] This application relates to the field of casting technology, and in particular to a stopper rod transfer device. Background Technology

[0002] A stopper rod is a refractory material rod installed inside a steel ladle and controls the opening and closing of the nozzle and the flow rate of molten steel by lifting and shifting. It is also called a ceramic stopper rod. It consists of a rod core, sleeve bricks, and stopper head bricks. The rod core is usually made of round steel.

[0003] A utility model patent with publication number CN209973660U discloses a conveying device for stopper rod production, including a base, a supporting arm, a robotic arm, and grippers. The supporting arm is mounted on the base via a rotating mechanism, and the robotic arm is mounted on the supporting arm via a lifting mechanism. The grippers include a first gripper located on the upper side of the robotic arm and a second gripper located on the lower part of the robotic arm. A pressing mechanism is also fixed at the upper end of the robotic arm. The above-mentioned conveying device for stopper rod production can automatically convey rubber cylinders or stoppers and can automatically press and fix the stopper cap at the upper end of the rubber cylinder. The rotating mechanism drives the supporting arm to rotate, thereby enabling the robotic arm to transfer the rubber cylinder or stopper rod between the conveying track and the designated position through the grippers.

[0004] Regarding the aforementioned technologies, the inventors believe that many stopper rods lack a boss structure on their outer wall, and solid stopper rods are relatively heavy. Relying solely on the friction of the grippers is not reliable enough to lift the stopper rod, and there is a risk that the stopper rod will slide down. Therefore, the aforementioned handling device has limitations and needs to be improved. Utility Model Content

[0005] This application provides a stopper rod transfer device that lifts the stopper rod through a threaded hole at the top of the stopper rod, thereby improving the adaptability to stopper rods with smooth outer wall structures.

[0006] This application provides a stopper rod transfer device, which adopts the following technical solution: A stopper rod transfer device includes a hanger with a socket at its bottom for inserting the end of a stopper rod. A motor is fixedly connected to the hanger, and the output end of the motor is slidably connected to an upper plate via a keyway structure. A lower plate is slidably connected inside the hanger and is rotatable within the hanger. Multiple guide rods are fixed to the lower plate, passing through and slidably connected to the upper plate. A spring is provided between the upper and lower plates. A retaining ring is fixed inside the hanger, and the top surface of the upper plate slidably abuts against the bottom surface of the retaining ring. A threaded block is fixed to the bottom of the lower plate, located inside the socket, and the threaded block is adapted to the threaded hole at the tip of the stopper rod.

[0007] By adopting the above technical solution, after the upper end of the stopper rod is inserted into the socket, the threaded block is not yet inside the stopper rod. The stopper rod pushes the lower plate upward, and the spring is compressed. Then, the operator starts the motor, which drives the lower plate and the threaded block to rotate through the upper plate and guide rod. Through the elastic force of the spring, the rotating threaded block can be screwed into the threaded hole at the top of the stopper rod, thus fixing the stopper rod. Then, the stopper rod can be hoisted to the target position.

[0008] Optionally, steel wire ropes are fixed to the four corners of the top surface of the hanger, and hooks are fixed to the upper ends of the steel wire ropes.

[0009] By adopting the above technical solution, the hook is used to connect with the hook of cranes and other hoisting equipment, which facilitates the installation of the gantry.

[0010] Optionally, the hanger is provided with a conical surface below the socket, the lower end of the conical surface has a larger diameter than the upper end, and the upper end of the conical surface is connected to the socket.

[0011] By adopting the above technical solution, the cone surface guides the upper end of the stopper rod, making it easier for the stopper rod to be inserted into the socket.

[0012] Optionally, the number of springs corresponds one-to-one with the guide rods, and the springs are sleeved on the outside of the guide rods.

[0013] By adopting the above technical solution, the spring is limited by the guide rod, which facilitates the installation of the spring.

[0014] Optionally, the top surface of the hanger is provided with a ventilation opening facing the motor, and a dustproof net is fixed inside the ventilation opening.

[0015] By adopting the above technical solution, the ventilation opening facilitates heat dissipation for the motor, and the dustproof net blocks dust.

[0016] Optionally, the two side walls of the hanger are provided with vertically arranged observation slots, and the lower plate is located between the two observation slots.

[0017] By adopting the above technical solution, the observation groove makes it easier for personnel to determine the height position of the lower plate, thereby determining whether the threaded block is screwed into the threaded hole at the top of the stopper rod.

[0018] Optionally, two retainers are symmetrically installed on the outer side wall of the hanger, and an arc-shaped plate is fixed to the inner side of the lower end of the retainer. The two arc-shaped plates are used to contact the outer side walls of the stopper rod.

[0019] By adopting the above technical solution, after rotating the two retainers outward, the stopper rod can be inserted between the two arc-shaped plates. The arc-shaped plates clamp the stopper rod on both sides, which plays a role in initial positioning.

[0020] Optionally, the retainer and the hanger are rotatably connected by a hinged rod, and a torsion spring is provided between the retainer and the hanger, the elastic force of which drives the retainer to rotate downward.

[0021] By adopting the above technical solution, the force of the torsion spring in the arc plate clamping the stopper rod is increased, thereby improving stability.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The threaded connection between the threaded block and the threaded hole at the end of the stopper rod is made by threading the stopper rod, thereby lifting the stopper rod and improving its adaptability to stopper rods with smooth outer wall structures. 2. The hooks facilitate the installation and use of the hanger, making it compatible with any hoisting equipment; 3. The use of a retainer and an arc plate improves the safety of lifting the stopper rod. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of a stopper rod transfer device according to an embodiment; Figure 2 This is a cross-sectional view of a stopper rod transfer device and a stopper rod combined according to an embodiment.

[0024] Explanation of reference numerals in the attached drawings: 1. Hanger; 11. Socket; 2. Motor; 21. Upper plate; 3. Lower plate; 31. Guide rod; 32. Spring; 12. Retaining ring; 33. Threaded block; 13. Wire rope; 14. Hook; 15. Ventilation opening; 16. Dustproof net; 17. Observation slot; 18. Conical surface; 4. Cage; 41. Hinge rod; 42. Arc plate; 43. Torsion spring. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] After the stopper rod is manufactured, it is usually provided with a threaded hole at its top. After the stopper rod is installed in the steel ladle, it is connected to the drive device through the threaded hole, thereby realizing the movement of the stopper rod and realizing the outflow or cut-off of molten steel.

[0027] Reference Figure 1 and Figure 2 This embodiment discloses a stopper rod transfer device, including a hanger 1. The bottom of the hanger 1 is provided with an insertion port 11 for inserting the end of the stopper rod. The hanger 1 is fixedly connected to a motor 2. The output end of the motor 2 is vertically downward. The output end of the motor 2 is slidably connected to an upper plate 21 through a keyway structure. When the motor 2 is running, its output shaft drives the upper plate 21 to rotate through the keyway structure.

[0028] A lower plate 3 is slidably connected inside the hanger 1. The sliding direction of the lower plate 3 is vertical, and the lower plate 3 is circular. The lower plate 3 can rotate inside the hanger 1. Multiple guide rods 31 are fixed to the lower plate 3. The guide rods 31 pass through the upper plate 21 and are slidably connected to the upper plate 21. When the upper plate 21 rotates, the upper plate 21 drives the lower plate 3 to rotate synchronously through the guide rods 31.

[0029] A spring 32 is provided between the upper plate 21 and the lower plate 3. The number of springs 32 corresponds one-to-one with the guide rods 31, and the springs 32 are sleeved on the outside of the guide rods 31. A retaining ring 12 is fixed inside the hanger 1. The retaining ring 12 is located above the upper plate 21, and the top surface of the upper plate 21 slides against the bottom surface of the retaining ring 12. A threaded block 33 is fixed at the bottom of the lower plate 3. The threaded block 33 is located inside the insertion port 11 and is adapted to the threaded hole at the top of the stopper rod.

[0030] By setting the spring 32, when the upper end of the stopper rod is inserted into the socket 11, the spring 32 is compressed, the threaded block 33 moves upward, and the elastic force of the spring 32 drives the lower plate 3 downward, thereby generating a downward force on the threaded block 33. As the threaded block 33 rotates, it can be screwed into the threaded hole at the top of the stopper rod.

[0031] Steel wire ropes 13 are fixed at the four corners of the top surface of the hanger 1. Hooks 14 are fixed at the upper ends of the steel wire ropes 13. Hooks 14 are used to connect with the hooks of cranes and other hoisting equipment to facilitate the installation of the hanger 1.

[0032] The top surface of the hanger 1 has a ventilation opening 15 directly facing the motor 2. A dustproof net 16 is fixed inside the ventilation opening 15. The ventilation opening 15 facilitates heat dissipation for the motor 2, while the dustproof net 16 blocks dust. Vertical observation slots 17 are provided on both side walls of the hanger 1. The lower plate 3 is located between two observation slots 17. The observation slots 17 allow personnel to determine the height position of the lower plate 3, thereby determining whether the threaded block 33 is screwed into the threaded hole at the top of the stopper rod. The hanger 1 has a conical surface 18 below the insertion port 11. The lower diameter of the conical surface 18 is larger than that of the upper diameter. The upper end of the conical surface 18 connects to the insertion port 11. The conical surface 18 guides the upper end of the stopper rod, facilitating its insertion into the insertion port 11.

[0033] Two retainers 4 are symmetrically installed on the outer wall of the hanger 1. The retainers 4 and the hanger 1 are rotatably connected by a hinge rod 41. An arc-shaped plate 42 is fixed to the inner side of the lower end of the retainer 4. The two arc-shaped plates 42 are used to contact the outer walls of the two sides of the stopper rod. A torsion spring 43 is provided between the retainer 4 and the hanger 1. The torsion spring 43 is sleeved on the outside of the hinge rod 41. The elastic force of the torsion spring 43 drives the retainer 4 to rotate downward.

[0034] The implementation principle of a stopper rod transfer device according to an embodiment of this application is as follows: the lifting frame 1 is lifted by a hoisting device, thereby moving the lifting frame 1. When the lifting frame 1 is close to the ground, personnel can hold the retaining frame 4 to drag and stabilize the lifting frame 1. After rotating the two retaining frames 4 outward, the stopper rod can be inserted between the two arc-shaped plates 42. Through the elastic force of the torsion spring 43, the arc-shaped plates 42 clamp the sides of the stopper rod, achieving a preliminary positioning effect.

[0035] Then, the height of the hanger 1 is lowered, and the upper end of the stopper rod is inserted into the insertion port 11 by the guide action of the conical surface 18. At this time, the threaded block 33 is not yet inside the stopper rod. The stopper rod pushes the threaded block 33 and the lower plate 3 upward. The upward movement of the upper plate 21 is restricted by the retaining ring 12, and the spring 32 is compressed. Then, the operator starts the motor 2. The motor 2 drives the lower plate 3 and the threaded block 33 to rotate through the upper plate 21 and the guide rod 31. Through the elastic force of the spring 32, the rotating threaded block 33 can be screwed into the threaded hole at the top of the stopper rod, completing the fixation of the stopper rod. Then, the stopper rod can be hoisted to the target position. It should be noted that the motor 2 has a built-in torque detection function. When excessive torque is detected, the machine will automatically stop, indicating that the threaded block 33 has been completely screwed into the stopper rod.

[0036] When it is necessary to lower the stopper rod, place the lower end of the stopper rod against the bearing surface, and then control the motor 2 to reverse so that the threaded block 33 can be screwed out of the threaded hole. During this process, personnel can support the stopper rod to improve safety.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stopper rod transfer device, characterized by: Includes a hanger (1), the bottom of which is provided with a socket (11) for inserting the end of a plug rod. The hanger (1) is fixedly connected to a motor (2). The output end of the motor (2) is slidably connected to an upper plate (21) via a keyway structure. A lower plate (3) is slidably connected inside the hanger (1) and can rotate inside the hanger (1). The lower plate (3) is fixed with multiple guide rods (31), which pass through... The upper plate (21) is slidably connected to the lower plate (3). A spring (32) is provided between the upper plate (21) and the lower plate (3). A retaining ring (12) is fixed inside the hanger (1). The top surface of the upper plate (21) slides against the bottom surface of the retaining ring (12). A threaded block (33) is fixed at the bottom of the lower plate (3). The threaded block (33) is located inside the insertion port (11). The threaded block (33) is adapted to the threaded hole at the top of the stopper rod.

2. A stopper rod transfer device according to claim 1, characterised in that: The top surface of the hanger (1) is fixed with steel wire ropes (13) at the four corners, and the upper ends of the steel wire ropes (13) are all fixed with hooks (14).

3. A stopper rod transfer device according to claim 1, characterised in that: The hanger (1) is provided with a conical surface (18) below the socket (11). The lower end of the conical surface (18) has a larger diameter than the upper end, and the upper end of the conical surface (18) is connected to the socket (11).

4. A stopper rod transfer device according to claim 1, characterised in that: The number of springs (32) corresponds one-to-one with the guide rods (31), and the springs (32) are sleeved on the outside of the guide rods (31).

5. A stopper rod transfer device according to claim 1, wherein: The top surface of the hanger (1) is provided with a ventilation opening (15) facing the motor (2), and a dustproof net (16) is fixed inside the ventilation opening (15).

6. A stopper rod transfer device according to claim 1, wherein: The two side walls of the hanger (1) are provided with vertically arranged observation slots (17), and the lower plate (3) is located between the two observation slots (17).

7. A stopper rod transfer device according to claim 1, wherein: Two retainers (4) are symmetrically installed on the outer side wall of the hanger (1). An arc plate (42) is fixed on the inner side of the lower end of the retainer (4). The two arc plates (42) are used to contact the outer side walls of the stopper rod.

8. A stopper rod transfer device according to claim 7, characterised in that: The retainer (4) and the hanger (1) are rotatably connected by a hinge rod (41). A torsion spring (43) is provided between the retainer (4) and the hanger (1). The elastic force of the torsion spring (43) drives the retainer (4) to rotate downward.

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