Automatic stopper rod flow control device convenient to mount and dismount

Abstract

The automatic stopper rod flow control device comprises a control box, a carrying mechanism and a stopper rod assembly, the carrying mechanism comprises a lifting rod and a carrying cross rod, a through hole is formed in the top of the control box, the bottom end of the lifting rod penetrates through the through hole and extends into the control box, and the stopper rod assembly is arranged in the carrying cross rod. One end of the carrying cross rod is fixedly connected to the top end of the lifting rod, the other end of the carrying cross rod is fixedly connected with a mounting seat, a mounting groove is formed in the top of the mounting seat, and an internal thread is formed in the inner wall of the mounting groove. The mounting disc is arranged on the vertical connecting rod and can be in threaded connection with the mounting seat by rotating the vertical connecting rod, and the notch groove is formed in one side of the mounting seat, so that the vertical connecting rod and the mounting seat can be conveniently and quickly matched and separated; the stopper rod assembly can be lifted, supported, limited and fixed through the carrying mechanism, bolts are not needed for fixing, and the stopper rod assembly cannot fall off when disassembled, assembled and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical engineering, in particular to an automatic flow control device for a stopper rod which is convenient for installation and disassembly. Background Art

[0002] In metallurgy, casting and other liquid metal processing processes, the stopper rod flow control device is a vital device used to accurately control the flow of liquid metal. This device is usually installed at the outlet of the melting furnace or continuous casting machine to ensure that the liquid metal flows into the downstream process at a stable and controllable rate. The stability and accuracy of the stopper rod flow control device have a decisive influence on the efficiency of the entire process and the quality of the finished product. Traditional stopper rod flow control devices mostly rely on mechanical structures to achieve flow regulation, such as changing the size of the flow channel by rotating or moving the stopper rod. The stopper rod will be worn and corroded during use, resulting in its performance degradation or even failure. Therefore, the stopper rod on the stopper rod flow control device needs to be replaced regularly when in use. Regular replacement of the stopper rod can ensure the normal operation of the flow control device, improve production efficiency and reduce the failure rate.

[0003] When some existing stopper rod flow control devices are in use, the stopper rods thereon are fixed by bolts. When disassembling and assembling the stopper rod, the bolts need to be removed first, and the stopper rod needs to be held by hand when removing the bolts, otherwise the stopper rod will fall off.

[0004] For example, a pipeline automatic stopper rod flow control device disclosed in the announcement number CN206988521U makes the connection between the fixed sleeve and the stopper rod more secure by setting bolts, avoids the stopper rod from falling off when the fixed sleeve moves up and down, increases the stability of the stopper rod during operation, and makes the stopper rod more stable.

[0005] Since the right side of the stopper rod is fixedly connected to the inner wall of the fixing sleeve by bolts, when disassembling and assembling the stopper rod, the bolts need to be removed first, and the stopper rod needs to be held by hand when removing the bolts, otherwise the stopper rod will fall off from the fixing sleeve.

[0006] Therefore, it is necessary to invent a stopper rod automatic flow control device that is easy to install and disassemble to solve the above problems. Utility Model Content

[0007] The utility model aims to provide a stopper rod automatic flow control device which is easy to install and disassemble, so as to solve the problems in the above technology.

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stopper rod automatic flow control device that is easy to install and disassemble, comprising a control box, a carrying mechanism and a stopper rod assembly, the carrying mechanism comprising a lifting rod and a loading cross bar, the top of the control box is provided with a through hole, the bottom end of the lifting rod passes through the through hole and extends to the inside of the control box, one end of the loading cross bar is fixedly connected to the top of the lifting rod, the other end of the loading cross bar is fixedly connected to a mounting seat, the top of the mounting seat is provided with a mounting groove, the inner wall of the mounting groove is provided with an internal thread, and the mounting A notch is provided on one side of the seat away from the load-carrying cross bar, and the notch extends to the bottom of the mounting seat. The stopper rod assembly includes a vertical connecting rod and a heat-resistant plug rod. The heat-resistant plug rod is installed at the bottom end of the vertical connecting rod. The vertical connecting rod runs through the middle of the mounting seat. The notch matches the vertical connecting rod. A mounting plate is fixedly connected to the surface of the vertical connecting rod near its top end. The mounting plate is arranged inside the mounting groove. An external thread is provided on the outer side of the mounting plate, and the external thread matches the internal thread. The mounting plate is fixedly connected to the mounting seat by threads.

[0009] The notch groove is provided to facilitate quick matching and disengagement of the vertical connecting rod and the mounting seat. The stopper rod assembly and the carrying mechanism can be assembled together by simply threading the mounting plate and the mounting seat.

[0010] Preferably, a reinforcing rib is provided at the angle between the lifting rod and the loading cross bar, one end of the reinforcing rib is fixedly connected to the lifting rod, and the other end of the reinforcing rib is fixedly connected to the loading cross bar.

[0011] The provision of the reinforcing ribs can improve the structural stability of the load-carrying cross bar, so that the load-carrying cross bar can stably support the stopper rod assembly.

[0012] Preferably, portions on both sides of the vertical connecting rod close to the top thereof are fixedly connected with handles, and the handles are arranged above the mounting plate.

[0013] The top of the vertical connecting rod can be easily grasped by the handle, and will not slip when the vertical connecting rod is rotated.

[0014] Preferably, a ball screw, a limit slide bar and a movable plate are arranged inside the control box, one end of the movable plate is drivingly connected to the ball screw, and the other end of the movable plate is slidably connected to the limit slide bar.

[0015] The movable plate is driven by a ball screw and is guided to slide by a limit slide bar.

[0016] Preferably, the top and bottom ends of the ball screw are rotatably connected to the inner top surface and inner bottom surface of the control box respectively, and the top and bottom ends of the limiting slide rod are fixedly connected to the inner top surface and inner bottom surface of the control box respectively.

[0017] Preferably, the ball screw and the limiting sliding rod are symmetrically distributed about the center line of the movable plate, and the bottom end of the lifting rod is fixedly connected to the top of the movable plate.

[0018] Preferably, a driving motor is installed on the top of the control box, and the top end of the ball screw is drivingly connected to the output shaft of the driving motor.

[0019] The ball screw is driven to rotate by the output shaft of the driving motor.

[0020] Preferably, a box door is installed on the front of the control box, a control panel is installed on the surface of the box door, and the control panel is electrically connected to the drive motor.

[0021] Opening the box door makes it easy to inspect and maintain the components inside the control box, and the drive motor can be regulated through the control panel.

[0022] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0023] By arranging a mounting plate on the vertical connecting rod, the mounting plate and the mounting seat can be threadedly connected by rotating the vertical connecting rod, and a notch groove is opened on one side of the mounting seat to facilitate quick matching and disengagement between the vertical connecting rod and the mounting seat. The stopper rod assembly can be lifted, supported and fixed in a limited position through the carrying mechanism, and there is no need to use bolts for fixing. The stopper rod assembly will not fall off during disassembly, assembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a structural sectional view of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the carrying mechanism of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the cargo carrying cross bar and the mounting seat of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the stopper rod assembly of the utility model.

[0029] Description of reference numerals:

[0030] 1. Control box; 2. Carrying mechanism; 3. Stopper rod assembly; 4. Lifting rod; 5. Carrying cross bar; 6. Mounting seat; 7. Mounting slot; 8. Internal thread; 9. Notch slot; 10. Vertical connecting rod; 11. Heat-resistant stopper rod; 12. Mounting plate; 13. External thread; 14. Reinforcement rib; 15. Handle; 16. Ball screw; 17. Limit slide bar; 18. Movable plate; 19. Drive motor; 20. Box door; 21. Control panel. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] The utility model provides Figure 1-5 The stopper rod automatic flow control device shown in the figure is easy to install and disassemble, including a control box 1, a carrying mechanism 2 and a stopper rod assembly 3, the carrying mechanism 2 includes a lifting rod 4 and a loading cross bar 5, a through hole is opened on the top of the control box 1, the bottom end of the lifting rod 4 passes through the through hole and extends to the inside of the control box 1, one end of the loading cross bar 5 is fixedly connected to the top of the lifting rod 4, and the other end of the loading cross bar 5 is fixedly connected to a mounting seat 6, a mounting groove 7 is opened on the top of the mounting seat 6, an internal thread 8 is opened on the inner wall of the mounting groove 7, and a notch groove is opened on the side of the mounting seat 6 away from the loading cross bar 5 9, the notch groove 9 extends to the bottom of the mounting seat 6, the stopper rod assembly 3 includes a vertical connecting rod 10 and a heat-resistant plug rod 11, the heat-resistant plug rod 11 is installed at the bottom end of the vertical connecting rod 10, the vertical connecting rod 10 is arranged through the middle of the mounting seat 6, the notch groove 9 matches the vertical connecting rod 10, the surface of the vertical connecting rod 10 near its top is fixedly connected with a mounting plate 12, the mounting plate 12 is arranged inside the mounting groove 7, the outer side of the mounting plate 12 is provided with an external thread 13, the external thread 13 matches the internal thread 8, and the mounting plate 12 is fixedly connected to the mounting seat 6 by threads.

[0033] In one aspect of the present embodiment, a reinforcing rib 14 is provided at the angle between the lifting rod 4 and the loading cross bar 5, one end of the reinforcing rib 14 is fixedly connected to the lifting rod 4, and the other end of the reinforcing rib 14 is fixedly connected to the loading cross bar 5, and the parts on both sides of the vertical connecting rod 10 near the top thereof are fixedly connected with handles 15, and the handles 15 are arranged above the mounting plate 12, and a ball screw 16, a limit slide 17 and a movable plate 18 are arranged inside the control box 1, one end of the movable plate 18 is transmission-connected to the ball screw 16, and the other end of the movable plate 18 is slidably connected to the limit slide 17, and the top and bottom of the ball screw 16 are fixedly connected. The ends are rotatably connected to the inner top surface and inner bottom surface of the control box 1 respectively, the top and bottom ends of the limiting slide bar 17 are fixedly connected to the inner top surface and inner bottom surface of the control box 1 respectively, the ball screw 16 and the limiting slide bar 17 are symmetrically distributed about the midline of the movable plate 18, the bottom end of the lifting rod 4 is fixedly connected to the top of the movable plate 18, a driving motor 19 is installed on the top of the control box 1, the top of the ball screw 16 is drivingly connected to the output shaft of the driving motor 19, a box door 20 is installed on the front of the control box 1, a control panel 21 is installed on the surface of the box door 20, and the control panel 21 is electrically connected to the driving motor 19.

[0034] Working principle of this utility model:

[0035] Refer to the instruction manual Figure 1-5 When using the utility model, the stopper rod assembly 3 is assembled with the carrying mechanism 2, and the stopper rod assembly 3 is lifted, supported and fixed by means of the carrying mechanism 2. First, the vertical connecting rod 10 is passed through the notch groove 9 to enter the middle of the mounting seat 6. At this time, the mounting plate 12 is located above the mounting seat 6. Then the vertical connecting rod 10 is pushed downward and rotated clockwise, so that the mounting plate 12 enters the inside of the mounting groove 7 and is threadedly connected with the mounting seat 6. When disassembling and replacing the stopper rod assembly 3, the vertical connecting rod 10 is first pulled upward and rotated counterclockwise to disengage the mounting plate 12 from the inside of the mounting groove 7. At this time, the mounting plate 12 is located above the mounting seat 6. It is only necessary to pull the vertical connecting rod 10 out of the middle of the mounting seat 6 through the notch groove 9;

[0036] When the stopper rod assembly 3 is controlled by the control box 1, the drive motor 19 is first started through the control panel 21, and the drive motor 19 drives the ball screw 16 to rotate. The rotation of the ball screw 16 is used to transmit the motion of the movable plate 18, so that the movable plate 18 can slide up and down along the limit slide bar 17. When the movable plate 18 slides up and down, it drives the carrying mechanism 2 to move up and down together, thereby driving the stopper rod assembly 3 to be raised and lowered.

Claims

1. A stopper rod automatic flow control device which is easy to install and disassemble, comprising a control box (1), a carrying mechanism (2) and a stopper rod assembly (3), characterized in that: The carrying mechanism (2) comprises a lifting rod (4) and a loading cross bar (5); a through hole is provided at the top of the control box (1); the bottom end of the lifting rod (4) passes through the through hole and extends into the inside of the control box (1); one end of the loading cross bar (5) is fixedly connected to the top of the lifting rod (4); the other end of the loading cross bar (5) is fixedly connected to a mounting seat (6); a mounting groove (7) is provided at the top of the mounting seat (6); an inner wall of the mounting groove (7) is provided with an internal thread (8); a notch groove (9) is provided on the side of the mounting seat (6) away from the loading cross bar (5); the notch groove (9) extends to the bottom of the mounting seat (6); the stopper rod The component (3) comprises a vertical connecting rod (10) and a heat-resistant plug rod (11), wherein the heat-resistant plug rod (11) is installed at the bottom end of the vertical connecting rod (10), and the vertical connecting rod (10) is arranged to pass through the middle part of the mounting seat (6), and the notch groove (9) matches the vertical connecting rod (10). A mounting plate (12) is fixedly connected to the surface of the vertical connecting rod (10) near its top end, and the mounting plate (12) is arranged inside the mounting groove (7). An external thread (13) is arranged on the outside of the mounting plate (12), and the external thread (13) matches the internal thread (8). The mounting plate (12) is fixedly connected to the mounting seat (6) by threads.

2. The stopper rod automatic flow control device that is easy to install and disassemble according to claim 1, characterized in that: A reinforcing rib (14) is provided at the angle between the lifting rod (4) and the loading cross bar (5); one end of the reinforcing rib (14) is fixedly connected to the lifting rod (4), and the other end of the reinforcing rib (14) is fixedly connected to the loading cross bar (5).

3. The stopper rod automatic flow control device that is easy to install and disassemble according to claim 1, characterized in that: Portions on both sides of the vertical connecting rod (10) close to the top thereof are fixedly connected with handles (15), and the handles (15) are arranged above the mounting plate (12).

4. The stopper rod automatic flow control device that is easy to install and disassemble according to claim 1, characterized in that: A ball screw (16), a limit slide bar (17) and a movable plate (18) are arranged inside the control box (1); one end of the movable plate (18) is transmission-connected to the ball screw (16), and the other end of the movable plate (18) is slidably connected to the limit slide bar (17).

5. The stopper rod automatic flow control device that is easy to install and disassemble according to claim 4, characterized in that: The top and bottom ends of the ball screw (16) are rotatably connected to the inner top surface and inner bottom surface of the control box (1), respectively, and the top and bottom ends of the limit slide bar (17) are fixedly connected to the inner top surface and inner bottom surface of the control box (1), respectively.

6. The stopper rod automatic flow control device that is easy to install and disassemble according to claim 4, characterized in that: The ball screw (16) and the limiting sliding rod (17) are symmetrically distributed about the center line of the movable plate (18), and the bottom end of the lifting rod (4) is fixedly connected to the top of the movable plate (18).

7. The stopper rod automatic flow control device that is easy to install and disassemble according to claim 4, characterized in that: A driving motor (19) is installed on the top of the control box (1), and the top end of the ball screw (16) is drivingly connected to the output shaft of the driving motor (19).

8. The stopper rod automatic flow control device that is easy to install and disassemble according to claim 7, characterized in that: A box door (20) is installed on the front of the control box (1), and a control panel (21) is installed on the surface of the box door (20). The control panel (21) is electrically connected to the drive motor (19).

Images