Feeding structure of intermediate frequency furnace

Abstract

The utility model relates to the technical field of smelting furnace feeding equipment, and discloses an intermediate frequency furnace feeding structure which comprises a support, a plurality of heavy load platforms are fixedly installed at the lower end of the support, a rack is fixedly installed on one side in the support, a gear motor is fixedly installed on the rack, and the gear motor is electrically connected with an external master controller through a connecting line. A first belt wheel is fixedly installed at the output end of the gear motor, a crankshaft is rotationally installed at the position, close to the gear motor, of the rack, a second belt wheel is fixedly installed at one end of the crankshaft, a plurality of swing rods are further rotationally connected to the two sides in the support, and the swing rods on the same side are movably connected with a connecting beam. Through the arrangement of the gear motor, the first belt wheel, the crankshaft, the transmission shaft, the swing rod, the connecting beam and the connecting frame, materials in the hopper can be conveyed at a constant speed, the guide hopper capable of sinking and being obliquely arranged is beneficial to reducing the impact force of the materials on molten metal in the intermediate frequency furnace, and production accidents caused by splashing of the molten metal are prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of furnace charging equipment, and in particular to a charging structure for a medium-frequency furnace. Background Technology

[0002] The intermediate frequency furnace charging car is used to add furnace charge into the furnace chamber. It is usually installed at the rear end of the intermediate frequency furnace shell. The intermediate frequency furnace charging car adds materials into the furnace through its unique mechanical structure. When charging is required, the operator will start the charging car, which will automatically travel to the pre-set position. Then, the charging car's hopper will slowly tilt, smoothly pouring the furnace charge (such as scrap steel, alloys, etc.) stored in it into the furnace chamber of the intermediate frequency furnace.

[0003] Therefore, when materials (such as scrap steel) are rapidly poured into the furnace from the hopper of the feeding car, they will have a strong impact on the molten metal. This impact force will cause the molten metal to splash, and the splashed high-temperature molten metal may injure the operators, causing serious burns or even life-threatening situations. In addition, the splashed molten metal may damage the equipment and facilities around the furnace, leading to production interruption or equipment damage. Utility Model Content

[0004] The purpose of this invention is to provide a feeding structure for a medium-frequency furnace, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A feeding structure for a medium-frequency furnace includes a support frame. Multiple heavy-duty platforms are fixedly mounted on the lower end of the support frame. A frame is fixedly mounted on one side of the support frame, and a geared motor is fixedly mounted on the frame. The geared motor is electrically connected to an external main controller via a connecting wire. A first pulley is fixedly mounted on the output end of the geared motor. A crankshaft is rotatably mounted on the frame near the geared motor, and a second pulley is fixedly mounted on one end of the crankshaft. Multiple rocker arms are rotatably connected to both sides of the support frame, and connecting beams are movably connected to the rocker arms on the same side. A hopper is rotatably connected to the upper end of the multiple rocker arms on both sides of the support frame. Guide beams are fixedly mounted on both sides of the hopper, and a guide hopper is provided between two guide beams. Limiting shafts are fixedly mounted on both sides of the guide hopper, and a gear is fixedly mounted on one side of each limiting shaft. The guide hopper is connected between two guide beams and located on one side of the hopper via the limiting shafts on both sides.

[0007] As a further preferred embodiment of this utility model, the first pulley and the second pulley are connected by a belt, and a drive shaft is rotatably connected to the outside of the crankshaft.

[0008] As a further preferred embodiment of this utility model, a connecting frame is fixedly connected between the two connecting beams. One side of the connecting frame is rotatably connected to the end of the transmission shaft away from the crankshaft. The rotating crankshaft is set so that the two connecting beams can move back and forth synchronously with the transmission shaft and the connecting frame. This causes the two connecting beams to drive multiple swing arms on both sides of the bracket to swing back and forth synchronously, so that the hopper can move back and forth between the multiple swing arms, thereby continuously and uniformly conveying the material in the hopper into the medium frequency furnace.

[0009] As a further preferred embodiment of this utility model, a plurality of limiting plates are fixedly installed at the lower end of the hopper near the guide hopper, and a base is fixedly installed on the bracket near the guide hopper. A cylinder is rotatably installed on the base. By setting the inclined limiting plates, the guide hopper can be supported and its angle limited after it sinks and changes angle.

[0010] As a further preferred embodiment of this utility model, a groove is provided in the guide beam, and the part of the guide beam with the groove is not connected to the hopper.

[0011] As a further preferred embodiment of this utility model, a toothed rail is fixedly installed on one side of the bottom of the guide beam.

[0012] As a further preferred embodiment of this utility model, a first fixed shaft is fixedly installed on both sides of the guide hopper below the limiting shaft, and a second fixed shaft is fixedly installed in the middle of one side of the first fixed shaft. The second fixed shaft is also rotatably connected to one end of the piston rod of the cylinder. The limiting shaft is slidably connected in the corresponding slide groove. By slidably connecting the limiting shaft in the slide groove, the guide hopper can sink and tilt during unloading, thereby reducing the impact force of the material falling into the medium frequency furnace and preventing the molten metal from splashing out of the furnace body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this utility model, by setting up a geared motor, a first pulley, a crankshaft, a transmission shaft, a rocker arm, a connecting beam, and a connecting frame, the material in the hopper can be conveyed at a uniform speed. The inclined guide hopper can also reduce the impact of the material on the molten metal in the medium frequency furnace, preventing the molten metal from splashing out and causing production accidents. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model in its first state;

[0016] Figure 2 This is a schematic diagram of the second state of the main structure of this utility model;

[0017] Figure 3This is a side view of the main structure of this utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 for Figure 1 Enlarged view of point B in the middle.

[0020] In the diagram: 1. Support frame; 2. Heavy-duty platform; 3. Frame; 4. Gear motor; 5. First pulley; 6. Crankshaft; 7. Second pulley; 8. Rocker arm; 9. Connecting beam; 10. Hopper; 11. Guide beam; 12. Guide hopper; 13. Limiting shaft; 14. Gear; 15. Drive shaft; 16. Connecting frame; 17. Base; 18. Cylinder; 19. Slide groove; 20. Gear rail; 21. First fixed shaft; 22. Second fixed shaft; 23. Limiting support plate. Detailed Implementation

[0021] 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.

[0022] like Figures 1-5 As shown, the present invention provides a medium-frequency furnace feeding structure, including a support 1. Multiple heavy-duty platforms 2 are fixedly installed at the lower end of the support 1. A frame 3 is fixedly installed on one side of the support 1. A geared motor 4 is fixedly installed on the frame 3, and the geared motor 4 is electrically connected to an external main controller via a connecting wire. A first pulley 5 is fixedly installed at the output end of the geared motor 4. A crankshaft 6 is rotatably installed on the frame 3 near the geared motor 4. A second pulley 7 is fixedly installed at one end of the crankshaft 6. The support 1 also has... Multiple swing rods 8 are rotatably connected to each other, and multiple swing rods 8 on the same side are movably connected to connecting beams 9. The upper ends of multiple swing rods 8 on both sides of the bracket 1 are rotatably connected to hoppers 10. Guide beams 11 are fixedly installed on both sides of the hopper 10. A guide hopper 12 is provided between the two guide beams 11. Limiting shafts 13 are fixedly installed on both sides of the guide hopper 12. A gear 14 is fixedly installed on one side of the limiting shaft 13. The guide hopper 12 is connected between the two guide beams 11 through the limiting shafts 13 on both sides and is located on one side of the hopper 10.

[0023] The first pulley 5 and the second pulley 7 are connected by a belt. A drive shaft 15 is rotatably connected to the outside of the crankshaft 6. A connecting frame 16 is fixedly connected between the two connecting beams 9. One side of the connecting frame 16 is rotatably connected to the end of the drive shaft 15 away from the crankshaft 6. The rotating crankshaft 6 is positioned so that the two connecting beams 9 can move back and forth synchronously with the drive shaft 15 and the connecting frame 16. This causes the two connecting beams 9 to drive multiple swing rods 8 on both sides of the bracket 1 to swing back and forth, so that the hopper 10 can move back and forth between the multiple swing rods 8. This allows the material in the hopper 10 to be continuously and uniformly transported into the medium-frequency furnace. Multiple limiting plates 23 are fixedly installed at the lower end of the hopper 10 near the guide hopper 12. A base 17 is fixedly installed on the bracket 1 near the guide hopper 12. A cylinder 18 is rotatably installed on the base 17. The cylinder 18 is rotatably installed on the base 17. The support plate 23 is provided to support and limit the angle of the guide hopper 12 after it sinks and changes angle. The guide beam 11 has a groove 19, and the part of the guide beam 11 with the groove 19 is not connected to the hopper 10. A toothed rail 20 is fixedly installed on one side of the bottom of the guide beam 11. The first fixed shaft 21 is fixedly installed on both sides of the guide hopper 12 below the limiting shaft 13. A second fixed shaft 22 is fixedly installed in the middle of one side of the first fixed shaft 21. The second fixed shaft 22 is also rotatably connected to one end of the piston rod of the cylinder 18. The limiting shaft 13 is slidably connected in the corresponding groove 19. By sliding the limiting shaft 13 in the groove 19, the guide hopper 12 can sink and tilt during unloading, thereby reducing the impact force of the material falling into the medium frequency furnace and preventing the molten metal from splashing into the furnace body.

[0024] It should be noted that this utility model is a feeding structure for a medium-frequency furnace. After the material is conveyed into the hopper 10, the heavy-duty platform 2 can be started by the external main controller, thereby moving the hopper 10 to a designated position. Subsequently, the cylinder 18 can be started, causing the piston rod of the cylinder 18 to push the second fixed shaft 22 to one side. Then, the second fixed shaft 22, together with the first fixed shaft 21, pushes the guide hopper 12 to one side, so that the limiting shafts 13 on both sides of the guide hopper 12 slide in the corresponding sliding grooves 19. This reduces the installation height of the guide hopper 12 and causes the guide hopper 12 to tilt by its own weight around the two limiting shafts 13 as the axis. The multiple limiting support plates 23 at the bottom of the hopper 10 support the guide hopper 12, so that one side of the guide hopper 12 is closer to the upper surface of the molten metal at the furnace opening. Then, the reduction motor 4 can be started by the main controller. Yes, the output end of the geared motor 4 drives the first pulley 5 to rotate, and the first pulley 5 drives the crankshaft 6 to rotate synchronously through the belt, so that the crankshaft 6 rotates between the two bearings of the frame 3, and the middle part of the crankshaft 6 rotates in the bearing of the transmission shaft 15, so that the transmission shaft 15 moves back and forth, thereby causing the transmission shaft 15 to perform a back and forth push and pull operation on the connecting frame 16. Then, the connecting frame 16 drives the two connecting beams 9 to move back and forth synchronously, so that the two connecting beams 9 respectively drive multiple swing rods 8 on one side to rotate around the central pivot in the bracket 1. Thus, the upper ends of the multiple swing rods 8 move back and forth, causing the hopper 10 to move back and forth. Thus, the material in the hopper 10 is gradually transported to the guide hopper 12 by the inertia of the back and forth swing, so that the material falls into the medium frequency furnace after being buffered by the guide hopper 12, thereby reducing the impact of the material on the molten metal in the medium frequency furnace.

[0025] When the entire device is moved, the second fixed shaft 22 can be pulled towards the cylinder 18 via the piston rod of the cylinder 18. This causes the second fixed shaft 22 to drive the guide hopper 12 to reset and move via the first fixed shaft 21. As a result, the limiting shafts 13 on both sides of the guide hopper 12 slide in the corresponding slide grooves 19 and cause the guide hopper 12 to gradually rise. When the gear 14 on one side of the limiting shaft 13 contacts the gear rail 20, the gear 14 can automatically rotate a certain angle to cooperate with the limiting shaft 13 and adjust the guide hopper 12 to a horizontal position.

[0026] 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. A charging structure for a medium-frequency furnace, characterized in that: The utility model provides a heavy load platform, including support (1), a plurality of heavy load platforms (2) are fixedly installed to the lower end of support (1), one side fixed mounting is equipped with rack (3) in support (1), fixed mounting is equipped with speed reducer motor (4) on rack (3), and speed reducer motor (4) is electrically connected with external main control ware through connecting line, the output of speed reducer motor (4) is fixedly installed with first pulley (5), the rotation is installed with crankshaft (6) on rack (3) near speed reducer motor (4), one end of crankshaft (6) is fixedly installed with second pulley (7), the rotation is connected with a plurality of swing rods (8) in both sides of support (1) still, and a plurality of swing rods (8) of same side are movably connected with connecting beam (9), the rotation is connected with hopper (10) on the upper end of a plurality of swing rods (8) in both sides of support (1), both sides of hopper (10) are fixedly installed with guide beam (11), and the guide beam (11) between two is equipped with guide hopper (12), both sides of guide hopper (12) are fixedly installed with limit shaft (13), one side of limit shaft (13) is fixedly installed with gear (14), and guide hopper (12) is connected between two guide beams (11) and is located hopper (10) one side through the limit shaft (13) of both sides and is inserted.

2. The material feeding structure for an intermediate frequency furnace according to claim 1, characterized in that: The first pulley (5) and the second pulley (7) are connected by a belt, and the crankshaft (6) is rotatably connected with a transmission shaft (15) on the outside.

3. The material feeding structure for an intermediate frequency furnace according to claim 2, characterized in that: The connecting beams (9) are fixedly connected with a connecting frame (16) between them, and the connecting frame (16) is rotatably connected to one end of the transmission shaft (15) away from the crankshaft (6) on one side.

4. The material feeding structure for an intermediate frequency furnace according to claim 1, characterized in that: A plurality of limit supporting plates (23) are fixedly installed on the lower end of the hopper (10) near the guide hopper (12), a base (17) is fixedly installed on the support (1) near the guide hopper (12), and a pneumatic cylinder (18) is rotatably installed on the base (17).

5. The material charging structure for an intermediate frequency furnace according to claim 4, wherein: A sliding groove (19) is formed in the guide beam (11), and the part of the guide beam (11) where the sliding groove (19) is formed is not connected to the hopper (10).

6. The material charging structure for an intermediate frequency furnace according to claim 5, wherein: A rack (20) is fixedly installed on one side of the bottom of the guide beam (11).

7. The material charging structure for an intermediate frequency furnace according to claim 6, wherein: First fixed shafts (21) are fixedly installed on both sides of the guide hopper (12) below the limit shaft (13), second fixed shafts (22) are fixedly installed on one side of the middle of the first fixed shafts (21), the second fixed shafts (22) are rotatably connected to one end of the piston rod of the pneumatic cylinder (18), and the limit shaft (13) is slidably connected in the corresponding sliding groove (19).

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