Full-automatic molten metal transferring and pouring system

Abstract

The utility model discloses a full-automatic molten metal transferring and pouring system which comprises a track arranged between an electric furnace and a pouring chamber, the track comprises a first track arranged in front of the electric furnace, a second track arranged in front of the pouring chamber and a third track communicated with the first track and the second track, a transferring dumping car is arranged on the first track, and a transferring dumping car is arranged on the second track. A pouring truck is arranged on the second track, a transfer truck is arranged on the third track, molten metal in the electric furnace is transferred into a steel ladle of the transfer dumping truck, and the steel ladle is transferred between the transfer dumping truck and the pouring truck through the transfer truck. According to the system, full-automatic industrial processes such as molten metal receiving, transferring, pouring and liquid returning are achieved, personnel participation is reduced, and the safety of the whole technological process is improved.

Description

Technical Field

[0001] This utility model belongs to the field of molten metal transfer technology, specifically relating to a fully automatic molten metal transfer and pouring system, which is suitable for the receiving, transfer, pouring and recycling of molten metal. Background Technology

[0002] In the casting industry, the forming and casting process of molten metal involves processes such as receiving, transferring, pouring, and returning the molten metal. The existing process uses a crane to lift the ladle and place it on the receiving platform, receive the molten metal from the electric furnace, and then transfer the molten metal ladle to the pouring area by crane. The stopper rod is manually pressed to complete the pouring operation. This process requires manual operation in many places, and the transfer and pouring of molten metal using a crane with flexible steel ropes is a dangerous operation. Summary of the Invention

[0003] This invention provides a fully automated molten metal transfer and pouring system. This system realizes fully automated processes such as molten metal receiving, transfer, pouring, and return, reducing human intervention and improving the safety of the entire process.

[0004] The objective of this utility model is achieved through the following means:

[0005] A fully automated molten metal transfer and pouring system includes a track set between an electric furnace and a pouring chamber. The track includes a first track in front of the electric furnace, a second track in front of the pouring chamber, and a third track connecting the first and second tracks. A transfer tilting car is set on the first track, a pouring car is set on the second track, and a transfer car is set on the third track. Molten metal in the electric furnace is transferred to the ladle of molten steel in the transfer tilting car, and the transfer car moves the ladle of molten steel between the transfer tilting car and the pouring car.

[0006] Furthermore, the transfer vehicle includes a chassis, with wheel sets and a first drive device for driving the wheel sets to rotate at both ends of the chassis. The wheel sets are connected to a third track to form a track pair. A worm gear rotary support is provided on the chassis. An upper rotating body is installed on the top of the worm gear rotary support. A roller bearing seat fixing plate is fixedly installed on the upper rotating body. The roller is installed on the bearing seat fixing plate through bearings. The roller is driven by a second drive device installed on the roller bearing seat fixing plate.

[0007] Furthermore, the chassis is composed of wheel end beams on both sides and a first crossbeam connecting the wheel end beams in the middle, and the worm gear rotation support mechanism is set on the first crossbeam.

[0008] Furthermore, the upper rotating body is also equipped with a transfer vehicle electronic control unit, and the first drive device, the worm gear rotation support mechanism and the second drive device are all electrically connected to the transfer vehicle electronic control unit.

[0009] Furthermore, the upper rotating body is formed by welding the longitudinal beam and the second transverse beam together. The upper part of the upper rotating body is provided with a roller bearing seat fixing plate, and the lower part is provided with a slewing support fixing seat. The slewing support fixing seat is installed on the top of the worm gear slewing support mechanism. A metal ladle limit seat is also provided at one end of the upper rotating body.

[0010] Furthermore, a limit switch is provided on the ladle limit seat, and the limit switch is electrically connected to the transfer vehicle's electrical control unit.

[0011] Furthermore, the casting car includes a traveling trolley composed of a bridge frame, end beams, and a first traveling mechanism. The bridge frame is provided with a track arranged along the axial direction of the bridge frame. The traveling trolley is provided with a translation trolley that travels along the track and has a rectangular frame structure. The translation trolley is provided with a sunken movable frame that can be raised and lowered and has a hollow box structure. The lower part of the inner cavity of the sunken movable frame is provided with corresponding steel ladle seats on both sides for loading and fixing the molten steel ladle. The inner cavity of the sunken movable frame is provided with a ladle cover that can be raised and lowered and is used to seal and insulate the molten steel ladle.

[0012] Furthermore, the translation trolley includes two main beams and two secondary beams. The two main beams are arranged in parallel and corresponding positions. The two ends of the opposite surfaces of the two main beams are fixedly connected by the secondary beams. The lower part of the two main beams is provided with a second traveling mechanism adapted to the track.

[0013] Furthermore, a weighing sensor is installed in the second walking mechanism.

[0014] Furthermore, each of the two main beams is equipped with several lifting cylinders on its upper part, which are connected to the sunken movable frame and used to drive the sunken movable frame to adjust its height.

[0015] Compared with the prior art, the present invention has the following technical effects:

[0016] This invention features a transfer and tilting trolley on the first track in front of the electric furnace that receives molten metal and transfers it to a transfer car on the third track. The casting car then moves to the transfer car to dock with the molten metal ladle, transferring it to the casting car. The remaining molten metal after casting is returned to the transfer car, which then returns it to the transfer and tilting trolley, from where it is poured into the electric furnace. This system achieves fully automated industrial processes for receiving, transferring, casting, and returning molten metal, reducing human intervention and improving the safety of the entire process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the transfer vehicle of this utility model.

[0019] Figure 3It is the chassis for the transfer vehicle.

[0020] Figure 4 It is a rotating body on the transfer vehicle.

[0021] Figure 5 This is a side view of the casting truck.

[0022] Figure 6 A schematic diagram of the structure of the casting machine's main trolley and translation trolley.

[0023] Figure 7 This is a schematic diagram of the sunken movable frame structure for the pouring truck.

[0024] Figure 8 This is a schematic diagram of the guide wheel structure.

[0025] Figure 9 This is a schematic diagram of the sunken movable frame in operation.

[0026] Figure 10 This is a schematic diagram of the transfer and tilting vehicle structure. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] The specific structure of this utility model is combined with the appendix. Figures 1-10 Describe it in detail.

[0030] like Figure 1 As shown, a fully automatic molten metal transfer and casting system includes a track set between an electric furnace and a casting chamber. The track includes a first track 3 set in front of the electric furnace 1, a second track 5 set in front of the casting chamber, and a third track 7 connecting the first track and the second track. A transfer tilting car 2 is set on the first track, a casting car 4 is set on the second track, and a transfer car 6 is set on the third track. Molten metal in the electric furnace is transferred to the ladle of molten steel in the transfer tilting car, and the transfer car transfers the ladle of molten steel between the transfer tilting car and the casting car.

[0031] Multiple casting chambers are set up according to the actual working conditions. Each casting chamber is connected to the third track of the transfer car. For example, if a second casting chamber is set up, a fourth track is set up in front of the second casting chamber, and a second casting car 8 is set up on the fourth track.

[0032] like Figure 2-4 As shown, the transfer vehicle of this utility model includes a chassis 9, with wheel sets and a first drive device for driving the wheel sets to transfer at both ends of the chassis. The wheel sets are connected to a third track to form a track pair. A worm gear rotary support 10 is set on the chassis. An upper rotating body 11 is installed on the top of the worm gear rotary support. A roller bearing seat fixing plate is fixedly installed on the upper rotating body. The roller is installed on the bearing seat fixing plate through a bearing. The roller is driven by a second drive device installed on the roller bearing seat fixing plate.

[0033] like Figure 3 As shown, the chassis of the transfer vehicle of this utility model is composed of wheel end beams 13 on both sides and a first crossbeam 14 connecting the wheel end beams in the middle, and the worm gear rotation support mechanism is set on the first crossbeam.

[0034] The transfer vehicle of this utility model is further provided with a transfer vehicle electronic control unit 15 on the upper rotating body. The first drive device, the worm gear rotation support mechanism and the second drive device are all electrically connected to the transfer vehicle electronic control unit.

[0035] like Figure 4 As shown, the upper rotating body of the transfer vehicle of this utility model is welded together by longitudinal beam 16 and second cross beam 17. The upper part of the upper rotating body is provided with roller bearing seat fixing plate 18, and the lower part is provided with slewing support fixing seat 22. The slewing support fixing seat is installed on the top of the worm gear slewing support mechanism. A metal ladle limiting seat 20 is also provided at one end of the upper rotating body.

[0036] Furthermore, the ladle limit seat of the transfer vehicle described in this utility model is provided with a limit switch 21, which is electrically connected to the transfer vehicle's electrical control unit 15.

[0037] like Figure 5-9As shown, the casting vehicle 4 of this utility model is a forklift-type steel casting vehicle adaptable to different specifications as described in patent application 202423149528.3. Its specific structure includes a traveling trolley J1 composed of a bridge frame J8, end beams J10, and a first traveling mechanism J11. The bridge frame J8 is provided with a track J7 arranged along the axial direction of the bridge frame J8. The traveling trolley J1 is provided with a translation trolley J2 that travels along the track J7 and has a rectangular frame structure. The translation trolley J2 includes two main beams J4 and two secondary beams J5. The two main beams J4 are arranged in parallel and corresponding positions, and their opposite ends are fixedly connected by the secondary beams J5. The lower part of the two main beams J4 is provided with a second row of beams adapted to the track J7. The second traveling mechanism J9 is the same as the traditional crane trolley traveling mechanism. The translation trolley J2 contains a sunken movable frame J3 with an adjustable height and a hollow box structure. Specifically, the sunken movable frame J3 includes two parallel longitudinal rods J12, which are fixedly connected by several cross rods J13. Each of the two longitudinal rods J12 has several side rods J14 arranged perpendicularly to the longitudinal rods J12 and spaced at intervals along the axial direction of the longitudinal rods J12. The lower sides of the inner cavity of the sunken movable frame J3 have corresponding ladle seats J15 for loading and fixing molten steel ladles. The two ladle seats J15 are respectively installed on the lower part of the opposite surfaces of the side rods J14. Two longitudinal rods J12 are set perpendicular to the main beam J4, and the two ends of the longitudinal rods J12 are respectively located on the upper part of the two main beams J4. Two lifting cylinders J6 are provided on the upper part of the two main beams J4, which are respectively corresponding to the ends of the two longitudinal rods J12. The output end of the lifting cylinders J6 is connected to the end of the longitudinal rods J12.

[0038] During the transportation and pouring of molten steel, in order to keep the molten steel inside the ladle warm, the inner cavity of the sunken movable frame J3 is equipped with a liftable and adjustable ladle cover J23 for sealing and heat preservation of the molten steel. Specifically, the lower part of the crossbar J13 inside the sunken movable frame J3 is equipped with a guide column J22 perpendicular to the crossbar J13. The guide column J22 includes a guide sleeve and a column body that slides within the guide sleeve. The ladle cover J23 is fixedly connected to the lower end of the column body inside the guide column J22. An electric cylinder J20 is provided on one side of the sunken movable frame J3. The output end of the electric cylinder J20 is fixedly connected to the upper end of the column body inside the guide column J22 through a steel wire rope J21. By extending and retracting the electric cylinder J20 and driving the column body inside the guide column J22 to rise and fall through the steel wire rope J21, the lifting and adjustment of the ladle cover J23 can be achieved, so that it can seal the upper opening of the molten steel ladle.

[0039] In order to weigh the molten steel ladle and the molten steel to determine the amount of molten steel in the ladle, a weighing sensor is installed in the bearing seat of the second traveling mechanism J9.

[0040] To ensure that the sunken movable frame J3 can maintain a stable horizontal lifting adjustment, the main beam J4 is provided with a guide wheel J18 on the side facing the sunken movable frame J3, which can rotate along the lifting direction of the sunken movable frame J3. The side rod J14 of the sunken movable frame J3 corresponding to the guide wheel J18 is provided with a guide rod J19 that cooperates with the guide wheel J18.

[0041] To ensure the safety and stability of the sunken movable frame J3 during loading and transporting of molten steel ladles, one end of the opposite face of several side bars J14 is provided with a limiting bar J17 that cooperates with the ladle seat J15 and is used to lock and limit one end of the molten steel ladle. The other end of the opposite face of several side bars J14 is open and cooperates with the sunken movable frame J3 to form a fork structure. The casting car moves towards the transfer car, and the open end of the sunken movable frame J3 extends towards the ladle on the transfer car. As the casting car moves, the ladle extends into the sunken movable frame, and the ladle mounting seat Q46 on the ladle is above the ladle seat J15 on the sunken movable frame. At this time, the casting car stops moving, and the lifting cylinder J6 of the casting car is activated, causing the sunken movable frame J3 to rise until the two ladle seats J15 of the casting car are engaged with the ladle mounting seats Q46. At this time, the lifting cylinder continues to rise until the ladle mounting seats Q46 are disengaged from the transfer car. The lifting cylinder stops working, and then the casting car moves in the opposite direction to the casting chamber, realizing the automatic pouring of the ladle.

[0042] To facilitate bottom pouring of molten steel by workers, a quadrilateral frame structure operating platform J16 is provided on one side of the sunken movable frame J3. The bottom surface of the operating platform J16 can be lifted and lowered by a hydraulic cylinder, which allows workers to easily operate the bottom stopper of the molten steel ladle. The operating platform J16 is equipped with guardrails on both sides, and the side closer to the molten steel ladle is equipped with heat insulation enclosure.

[0043] The transfer and tilting vehicle 2 of this utility model adopts the multi-functional automated handling equipment for molten metal in high-temperature dust environment described in CN202423116283.4. It includes a trolley assembly Q1 and a tilting assembly Q4 set on the upper part of the trolley assembly Q1. The trolley assembly Q1 is also equipped with a hydraulic system Q2 for providing power to the lifting cylinder and the tilting cylinder, and an electrical system Q3 for controlling the running mechanism and the hydraulic system. In order to facilitate the daily inspection and maintenance of the trolley assembly Q1 and the tilting assembly Q4, maintenance platforms Q5 are provided on both sides of the trolley assembly Q1. The maintenance platforms Q5 connect the two sides of the vehicle's running pit, making it convenient to walk from one side of the pit to the other side. The ladle and the tilting frame Q41 on the transfer and tilting cart of patent CN202423116283.4 are not connected by bolts. Instead, two ladle mounting seats Q46 are provided on the ladle on the transfer and tilting cart, which are engaged with the grooves on the clamping plates of the two semi-circular structures of the tilting frame Q41 on the transfer and tilting cart.

[0044] The working process of this utility model is as follows:

[0045] After the molten metal in electric furnace 1 has been smelted, the furnace sends a signal, and the transfer tilting car 2, carrying the molten steel ladle, moves to the furnace. The molten metal in the furnace is poured into the ladle on the transfer tilting car; this is the receiving process. The weighing system inside the transfer tilting car reads the weight of the molten metal in the ladle in real time. After receiving, the transfer car 6 moves to the first track 3, then to the ladle receiving position between transfer tilting car 2 and transfer car 6. At this point, the roller assembly of the transfer tilting car is aligned with the rollers of the transfer car. The ladle is driven by the roller assembly Q45 on the transfer tilting car 2, causing the ladle mounting seat Q46 to disengage from the two semi-annular clamping plates of the tilting frame Q41. Under the driving action of the roller assembly of the transfer tilting car, the ladle moves onto the rollers of the transfer car. At this time, the rollers of the transfer car are also rotating, thus transferring the ladle from the transfer tilting car to the transfer car. When the ladle touches the limit plate, the rollers of the transfer car stop rotating.

[0046] At this point, the line connecting the mounting seats of the two molten steel ladles is parallel to the first track. In order to transfer the molten steel ladles from the transfer car to the casting car, the molten steel ladles must be rotated 90 degrees so that the line connecting the mounting seats of the two molten steel ladles is parallel to the connection of the two ladle seats J15 of the casting car. Therefore, the worm gear slewing support mechanism of the transfer car needs to be activated to rotate the two molten steel ladle mounting seats 90 degrees so that they correspond to the two ladle seats J15 of the casting car.

[0047] Then, the casting car 4 moves to the third track 7 until the open ends of the opposite sides of the side rods J14 of the sinking movable frame J3 of the casting car can just accommodate the molten steel ladle, so that the two molten steel ladle mounting seats Q46 on the transfer car are on the two ladle seats J15 of the casting car. At this time, the lifting cylinder J6 of the casting car is activated, so that the sinking movable frame J3 rises until the two ladle seats J15 of the casting car are locked on the molten steel ladle mounting seats Q46. The lifting cylinder J6 continues to work, and the molten steel ladle mounting seats Q46 move upward and disengage from the transfer car. At this time, the lifting cylinder stops working, and then the casting car moves in the opposite direction to the casting chamber to realize the automatic pouring of molten steel ladles.

[0048] After pouring, if there is any remaining molten metal in the ladle, the ladle needs to be transferred from the pouring car to the transfer car, then from the transfer car to the transfer and tilting car, and finally to the electric furnace. The ladle is then lifted and tilted to pour the molten metal into the electric furnace. This is the liquid return process.

[0049] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A fully automated molten metal transfer and pouring system, comprising a track disposed between an electric furnace and a pouring chamber, characterized in that: The track includes a first track (3) set in front of the electric furnace (1), a second track (5) set in front of the casting chamber, and a third track (7) connecting the first track and the second track. A transfer tilting car (2) is set on the first track, a casting car (4) is set on the second track, and a transfer car (6) is set on the third track. Molten metal in the electric furnace is transferred to the ladle of the transfer tilting car, and the transfer car transfers the ladle of molten steel between the transfer tilting car and the casting car.

2. The fully automated molten metal transfer and casting system according to claim 1, characterized in that: The transfer vehicle includes a chassis (9), with wheel sets and a first drive device for driving the wheel sets to transfer at both ends of the chassis. The wheel sets are connected to the third track to form a track pair. A worm gear rotary support (10) is set on the chassis. An upper rotating body (11) is installed on the top of the worm gear rotary support. A roller bearing seat fixing plate is fixedly installed on the upper rotating body. The roller is installed on the bearing seat fixing plate through a bearing. The roller is driven by a second drive device installed on the roller bearing seat fixing plate.

3. The fully automated molten metal transfer and casting system according to claim 2, characterized in that: The chassis consists of wheel end beams (13) on both sides and a first crossbeam (14) connecting the wheel end beams in the middle, with the worm gear rotation support mechanism set on the first crossbeam.

4. The fully automated molten metal transfer and casting system according to claim 3, characterized in that: The upper rotating body is also equipped with a transfer vehicle electronic control unit (15), and the first drive device, the worm gear rotation support mechanism and the second drive device are all electrically connected to the transfer vehicle electronic control unit.

5. The fully automated molten metal transfer and casting system according to claim 4, characterized in that: The upper rotating body is welded together by longitudinal beam (16) and second cross beam (17). The upper part of the upper rotating body is provided with roller bearing seat fixing plate (18) and the lower part is provided with slewing support fixing seat (22). The slewing support fixing seat is installed on the top of the worm gear slewing support mechanism. A metal steel ladle limiting seat (20) is also provided at one end of the upper rotating body.

6. The fully automated molten metal transfer and casting system according to claim 5, characterized in that: A limit switch (21) is installed on the ladle limit seat, and the limit switch is electrically connected to the transfer vehicle control unit (15).

7. The fully automated molten metal transfer and casting system according to claim 1, characterized in that: The casting car includes a traveling trolley (J1) consisting of a bridge frame (J8), an end beam (J10), and a first traveling mechanism (J11). The bridge frame (J8) is provided with a track (J7) arranged along the axial direction of the bridge frame (J8). The traveling trolley (J1) is provided with a translation trolley (J2) that travels along the track (J7) and has a rectangular frame structure. The translation trolley (J2) is provided with a sunken movable frame (J3) that can be raised and lowered and has a hollow box structure. The lower part of the sunken movable frame (J3) has corresponding steel ladle seats (J15) on both sides for loading and fixing the molten steel ladle. The sunken movable frame (J3) is provided with a ladle cover (J23) that can be raised and lowered and is used to seal and insulate the molten steel ladle.

8. The fully automated molten metal transfer and casting system according to claim 7, characterized in that: The translation trolley (J2) includes two main beams (J4) and two secondary beams (J5). The two main beams (J4) are arranged in parallel and corresponding to each other. The two ends of the opposite surfaces of the two main beams (J4) are fixedly connected by the secondary beams (J5). The lower part of the two main beams (J4) is provided with a second traveling mechanism (J9) that is adapted to the track (J7).

9. The fully automated molten metal transfer and casting system according to claim 8, characterized in that: The second traveling mechanism (J9) is equipped with a weighing sensor.

10. The fully automated molten metal transfer and casting system according to claim 9, characterized in that: Both main beams (J4) are equipped with several lifting cylinders (J6) on their upper parts, which are connected to the sunken movable frame (J3) and used to drive the sunken movable frame (J3) to adjust its height.

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