Master valve casting core vertical casting apparatus

Abstract

The utility model discloses a main control valve casting uses core -making vertical casting equipment, including support, the support inside rotation installation has the ladle, the support side installs the protection box, the ladle one side is installed with drive assembly, the protection box is installed with the rotating speed sensor in, the support top is installed with first support and second support, first support one end is installed with installation cylinder, the rotating column is rotationally installed in the installation cylinder, one end fixed mounting of rotating column has the winding wheel, the winding wheel outside is connected with the drawstring, the drawstring one end fixedly connected with the stand, the stand is fixedly installed in the ladle top, the rotating column outside is provided with the elastic component for maintaining the winding wheel angle. The utility model drive component exception, rotating speed sensor can monitor rotating speed exception to through brake assembly to winding wheel is braked, winding wheel is held up the stand and the ladle through the drawstring, avoids the metal liquid overflow.

Description

Technical Field

[0001] This utility model relates to the field of casting, specifically to a core-shooting vertical casting device for casting a main control valve. Background Technology

[0002] In the casting production of main control valves, the core-shooting vertical casting equipment is a key device to ensure the quality of casting. The stability of the ladle angle directly affects the uniformity and accuracy of molten metal pouring.

[0003] Traditional core-shooting vertical casting equipment for main control valve casting mostly relies on the locking ability of the drive mechanism to maintain the ladle angle, without considering the impact of impact force and gravity changes during the pouring process on the ladle angle. When the molten metal flows out rapidly, the instantaneous impact force can easily cause the ladle to shake. After long-term use, the wear of the drive mechanism will further aggravate the problem of angle instability. Especially in large-scale continuous production, the overflow of molten metal may cause safety hazards. Therefore, it is necessary to design a core-shooting vertical casting equipment for main control valve casting to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a core-shooting vertical casting device for casting main control valves, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a core-shooting vertical casting device for casting a main control valve, comprising a support, a ladle rotatably mounted on the inner side of the support, a protective box mounted on the side of the support, a drive assembly mounted on one side of the ladle, and a speed sensor mounted inside the protective box; The support frame is equipped with a first support rod and a second support rod. A mounting cylinder is installed at one end of the first support rod. A rotating column is rotatably installed inside the mounting cylinder. A winding wheel is fixedly installed at one end of the rotating column. A pull rope is connected to the outside of the winding wheel. A column is fixedly connected to one end of the pull rope. The column is fixedly installed on the top of the pouring ladle. An elastic component for maintaining the angle of the winding wheel is provided on the outside of the rotating column. The winding wheel is rotatably connected to the second support rod. A braking component for abutting the side of the winding wheel is installed at one end of the second support rod.

[0006] Preferably, the drive assembly includes a rotating rod and a motor. The rotating rod is fixedly installed on one side of the ladle and movably passes through the bracket. A first gear is fixedly installed at one end of the rotating rod. The motor is fixedly installed inside the protective box. A second gear is fixedly installed at the output end of the motor. The second gear meshes with the first gear. The speed sensor is used to monitor the speed of the first gear.

[0007] Preferably, the elastic component includes a baffle and a torsion spring. The baffle is fixedly installed on the outside of the rotating column, one end of the torsion spring is installed on one side of the baffle, and the other end of the torsion spring is installed on the inside of the mounting cylinder.

[0008] Preferably, the braking assembly includes a mounting plate, a hydraulic push rod is fixedly mounted on one side of the mounting plate, and a friction disc is fixedly mounted on the output end of the hydraulic push rod, the friction disc being used to abut against the side of the winding wheel.

[0009] Preferably, the hydraulic push rod is electrically connected to the controller, and the speed sensor is electrically connected to the controller.

[0010] Preferably, the friction disc has anti-slip texture on the side near the winding wheel.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This vertical casting equipment for core shooting, controlled by a main control valve, can drive the column to pull the rope during the rotation of the ladle. The rope can then pull the winding wheel to rotate in the forward direction. Since the rotating column is directly connected to the winding wheel, and the rope is on the outside of the winding wheel, the torsion spring applies a force to the baffle to drive the baffle, rotating column, and winding wheel to rotate in the opposite direction. Under the action of the torsion spring, the winding wheel can keep the rope taut during the rotation of the ladle. The speed sensor can monitor the speed of the first gear in real time. When the drive component malfunctions and causes abnormal speed of the rotating rod and the first gear, the speed sensor detects the abnormal signal and sends a signal to the controller. The controller controls the hydraulic push rod to extend, which can drive the friction disc to move to contact the side of the winding wheel. The friction disc brakes the side of the winding wheel, which can effectively prevent the ladle from tipping over and causing the molten metal to spill out, thus improving the safety of the vertical casting equipment.

[0012] 2. The main control valve casting core shooting vertical casting equipment uses a controller to control the motor to drive the second gear to rotate, which in turn drives the first gear and the rotating rod to rotate, so that the ladle rotates to perform the casting work, thus facilitating the automatic vertical casting work. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is an enlarged structural diagram of point A in this utility model.

[0014] In the diagram: 1. Support; 2. Ladle; 3. Rotating rod; 4. First gear; 5. Motor; 6. Second gear; 7. First support rod; 8. Mounting cylinder; 9. Rotating column; 10. Winding reel; 11. Baffle; 12. Torsion spring; 13. Mounting plate; 14. Hydraulic push rod; 15. Friction disc; 16. Second support rod; 17. Pull rope; 18. Column; 19. Protective box; 20. Speed ​​sensor. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1

[0017] Please refer to Figure 1-3 As shown, this utility model provides a core-shooting vertical casting device for casting a main control valve, including a bracket 1, a ladle 2 rotatably mounted on the inner side of the bracket 1, a protective box 19 mounted on the side of the bracket 1, a drive assembly mounted on one side of the ladle 2, and a speed sensor 20 mounted inside the protective box 19. The support 1 is equipped with a first support rod 7 and a second support rod 16. The first support rod 7 is equipped with an installation cylinder 8 at one end. The installation cylinder 8 is rotatably mounted with a rotating column 9 inside. The rotating column 9 is fixedly mounted with a winding wheel 10 at one end. The winding wheel 10 is connected to a pull rope 17 on the outside. The pull rope 17 is fixedly connected to a column 18 at one end. The column 18 is fixedly mounted on the top of the ladle 2. The rotating column 9 is provided with an elastic component for maintaining the angle of the winding wheel 10. The winding wheel 10 is rotatably connected to the second support rod 16. The second support rod 16 is equipped with a braking component for abutting the side of the winding wheel 10 at one end.

[0018] Specifically, when the drive component malfunctions, the speed sensor 20 can detect the abnormal speed and then brake the winding wheel 10 through the braking assembly. The winding wheel 10 pulls the column 18 and the ladle 2 through the pull rope 17 to prevent the molten metal from overflowing.

[0019] The drive assembly includes a rotating rod 3 and a motor 5. The rotating rod 3 is fixedly installed on one side of the ladle 2 and movably passes through the bracket 1. A first gear 4 is fixedly installed at one end of the rotating rod 3. The motor 5 is fixedly installed inside the protective box 19. A second gear 6 is fixedly installed at the output end of the motor 5. The second gear 6 meshes with the first gear 4. A speed sensor 20 is used to monitor the speed of the first gear 4. The controller controls the motor 5 to drive the second gear 6 to rotate, thereby driving the first gear 4 and the rotating rod 3 to rotate, so that the ladle 2 rotates to perform the pouring work.

[0020] The elastic component includes a baffle 11 and a torsion spring 12. The baffle 11 is fixedly installed on the outside of the rotating column 9. One end of the torsion spring 12 is installed on one side of the baffle 11, and the other end of the torsion spring 12 is installed inside the mounting cylinder 8. When the ladle 2 pulls the pull rope 17, the pull rope 17 can pull the winding wheel 10 to rotate in the forward direction. The torsion spring 12 can pass through the baffle 11 to make the winding wheel 10 receive a force that rotates in the opposite direction, so as to keep the pull rope 17 taut.

[0021] The braking assembly includes a mounting plate 13, on one side of which a hydraulic push rod 14 is fixedly mounted. A friction disc 15 is fixedly mounted at the output end of the hydraulic push rod 14. The friction disc 15 is used to abut against the side of the winding wheel 10. The hydraulic push rod 14 is electrically connected to the controller, and the speed sensor 20 is also electrically connected to the controller. The side of the friction disc 15 near the winding wheel 10 has anti-slip texture. When the drive component malfunctions and causes the rotation rod 3 and the first gear 4 to rotate abnormally, the speed sensor 20 detects the abnormal signal and sends a signal to the controller. The controller controls the hydraulic push rod 14 to extend, which can drive the friction disc 15 to move to contact the side of the winding wheel 10. The friction disc 15 abuts against the side of the winding wheel 10 to brake, which can effectively prevent the ladle 2 from tipping over and cause the molten metal to spill out, thus improving the safety of the vertical casting equipment.

[0022] Working principle: This utility model is a core-shooting vertical casting device for casting main control valves. When in use, the controller controls the motor 5 to drive the second gear 6 to rotate, which in turn drives the first gear 4 and the rotating rod 3 to rotate, so that the ladle 2 rotates to perform the casting work. During the rotation of ladle 2, the column 18 is driven to pull the rope 17, which in turn pulls the winding wheel 10 to rotate in the forward direction. Since the rotating column 9 is directly connected to the winding wheel 10, and the rope 17 is on the outside of the winding wheel 10, the torsion spring 12 applies a force to the baffle 11 to drive the baffle 11, rotating column 9, and winding wheel 10 to rotate in the opposite direction. This ensures that, under the action of the torsion spring 12, the winding wheel 10 remains taut with the rope 17 during the rotation of ladle 2, and the speed sensor 20 can detect this. The rotational speed of the first gear 4 is monitored in real time. When the rotational speed of the rotating rod 3 and the first gear 4 is abnormal due to an abnormality in the drive component, the speed sensor 20 detects the abnormal signal and sends a signal to the controller. The controller controls the hydraulic push rod 14 to extend, which can drive the friction disc 15 to move to contact the side of the winding wheel 10. The friction disc 15 brakes against the side of the winding wheel 10. The winding wheel 10 pulls the column 18 and the ladle 2 through the pull rope 17, which can effectively prevent the ladle 2 from tipping over and causing the molten metal to spill out, thus improving the safety of the vertical casting equipment.

[0023] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A core-shooting vertical casting device for casting a main control valve, comprising a support (1), characterized in that: A ladle (2) is rotatably mounted on the inner side of the bracket (1), a protective box (19) is mounted on the side of the bracket (1), a drive assembly is mounted on one side of the ladle (2), and a speed sensor (20) is installed inside the protective box (19). The bracket (1) is equipped with a first support rod (7) and a second support rod (16) on its top. An installation cylinder (8) is installed at one end of the first support rod (7). A rotating column (9) is rotatably installed inside the installation cylinder (8). A winding wheel (10) is fixedly installed at one end of the rotating column (9). A pull rope (17) is connected to the outside of the winding wheel (10). A column (18) is fixedly connected to one end of the pull rope (17). The column (18) is fixedly installed on the top of the ladle (2). An elastic component for maintaining the angle of the winding wheel (10) is provided on the outside of the rotating column (9). The winding wheel (10) is rotatably connected to the second support rod (16). A braking component for abutting the side of the winding wheel (10) is installed at one end of the second support rod (16).

2. The core-shooting vertical casting equipment for casting a main control valve according to claim 1, characterized in that: The drive assembly includes a rotating rod (3) and a motor (5). The rotating rod (3) is fixedly installed on one side of the ladle (2). The rotating rod (3) moves through the bracket (1). A first gear (4) is fixedly installed at one end of the rotating rod (3). The motor (5) is fixedly installed inside the protective box (19). A second gear (6) is fixedly installed at the output end of the motor (5). The second gear (6) meshes with the first gear (4). The speed sensor (20) is used to monitor the speed of the first gear (4).

3. The core-shooting vertical casting equipment for casting a main control valve according to claim 1, characterized in that: The elastic component includes a baffle (11) and a torsion spring (12). The baffle (11) is fixedly installed on the outside of the rotating column (9). One end of the torsion spring (12) is installed on one side of the baffle (11), and the other end of the torsion spring (12) is installed on the inside of the mounting cylinder (8).

4. The core-shooting vertical casting equipment for casting a main control valve according to claim 1, characterized in that: The braking assembly includes a mounting plate (13), on one side of which a hydraulic push rod (14) is fixedly mounted. A friction disc (15) is fixedly mounted at the output end of the hydraulic push rod (14), and the friction disc (15) is used to abut against the side of the winding wheel (10).

5. The core-shooting vertical casting equipment for casting a main control valve according to claim 4, characterized in that: The hydraulic push rod (14) is electrically connected to the controller, and the speed sensor (20) is electrically connected to the controller.

6. The core-shooting vertical casting equipment for casting a main control valve according to claim 4, characterized in that: The friction disc (15) has anti-slip texture on the side near the winding wheel (10).

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