Molten iron transport device

Abstract

The application discloses a molten iron conveying device and relates to the technical field of metal smelting. The technical points are as follows: the device comprises a mobile chassis, a mobile wheel is arranged below the mobile chassis, a door-shaped vertical frame is arranged on the upper side of the mobile chassis, and one horizontal placing frame is arranged on one side of the door-shaped vertical frame; one support pad is fixedly arranged on the opposite side of the end of the horizontal placing frame away from the door-shaped vertical frame, a bearing seat is fixedly arranged on each support pad, a rotating shaft is arranged in each bearing seat, and the ends of the rotating shafts close to each other are fixedly connected with the outer side wall of a ladle. Since the horizontal placing frame and the door-shaped vertical frame are always perpendicular to each other, the position of the ladle in the vertical direction does not need to be maintained by manpower during the transfer process, and workers only need to focus on pushing the whole device to move, so that the device is more convenient to use compared with the transfer trolley in the prior art.

Description

Technical Field

[0001] This application relates to the field of metal smelting technology, and in particular to a molten iron transport device. Background Technology

[0002] In the metal smelting and casting industry, most companies now use specialized automated transfer vehicles to transport molten iron when casting large molds. However, for smaller molds, manual labor is more economical and yields better results.

[0003] Early manual transfer of molten iron typically involved two people carrying a ladle full of molten iron to the unloading point. This method was not only wasteful of manpower, but also prone to splashing molten iron during the lifting and unloading process due to the different forces applied by the two people, easily scalding the transport workers and causing unnecessary accidents and losses. Therefore, patent documents with application numbers 202323222392.X and 201120402905.3 both provide a molten iron transfer cart. Although this molten iron transfer cart can replace manual lifting and unloading, reducing labor and the accident rate, and providing safety for workers and benefits to enterprises, it still has shortcomings in practical use. During manual transfer of molten iron, workers need to continuously apply downward pressure to the main rod to keep the ladle in the air. Obviously, the convenience of using this transfer cart still needs to be improved. Utility Model Content

[0004] This application provides a molten iron transport device that further enhances the convenience for workers when using it, based on existing molten iron transfer cars.

[0005] The above-mentioned objective of this application is achieved through the following technical solution: A molten iron transport device includes a movable base frame with movable wheels installed below it. A portal frame is fixedly installed on the upper side of one end of the movable base frame, and a horizontal placement frame is installed on the side of the portal frame facing the other end of the movable base frame. On the horizontal placement frame, a support pad is fixedly installed on one opposite side along its width direction at the end away from the portal frame, and a bearing seat is fixedly installed on each support pad; A rotating shaft is inserted into each of the two bearing seats, and the adjacent ends of the two rotating shafts are fixedly connected to the outer wall of the molten iron ladle.

[0006] Furthermore, both of the two rotating shafts have square ends, and one of the rotating shafts has a rotating handle installed at its square end.

[0007] Furthermore, a limiting bracket is provided below one side of the rotating handle, and the limiting bracket is fixedly connected to the horizontal placement frame; When the pouring port of the molten iron ladle is directly above, the rotating handle is in a horizontal position and in contact with the horizontal section of the limiting angle brace.

[0008] Furthermore, the horizontal placement frame and the portal frame are slidably connected in the vertical direction; The portal frame is equipped with a self-locking lifting unit, which is connected to the portal frame. The lifting unit can be used to adjust the specific position of the horizontally placed frame in the vertical direction.

[0009] Furthermore, the hoisting unit includes a fixed pulley fixedly installed on the lower side of the horizontal beam of the portal frame, and a winch is installed on the side of the portal frame opposite to the horizontal placement frame. The hoisting wire on the winch extends upward, passes around the fixed pulley, and is fixedly tied to the horizontal placement frame in a vertical direction downward.

[0010] Furthermore, the winch is preferably a worm gear hand-cranked winch.

[0011] Furthermore, a fixing plate is provided on the lower side of the winch and fixedly installed on the portal frame, and a drive push handle is hinged to the side of the fixing plate away from the portal frame.

[0012] In summary, this application includes at least one of the following beneficial technical effects: Since the horizontal placement frame and the gantry frame of this application are always perpendicular to each other, the molten iron ladle does not need to be manually maintained in the vertical direction during the transfer process. Workers only need to focus on pushing the entire equipment to move. Compared with the transfer trolley in the prior art, the equipment of this application effectively improves the convenience of use in the process of transferring molten iron. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a top view of this application; Figure 3 This is a structural schematic diagram viewed from the drive handle side of this application (i.e., the rear view of this application).

[0015] Reference numerals in the attached diagram: 1. Movable base frame; 2. Movable wheels; 3. Portal frame; 4. Horizontal placement frame; 5. Support pad; 6. Bearing seat; 7. Rotating shaft; 8. Ladle of molten iron; 9. Rotating handle; 10. Limiting angle brace; 11. Lifting unit; 111. Fixed pulley; 112. Winch; 113. Lifting wire; 12. Fixing plate; 13. Drive push handle. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0017] like Figure 1 and Figure 2 As shown, this application discloses a molten iron transport device, which includes a movable base frame 1, movable wheels 2 for movement installed below the movable base frame 1, a portal frame 3 fixedly installed on the upper side of one end of the movable base frame 1, and a horizontal placement frame 4 installed on the side of the portal frame 3 facing the other end of the movable base frame 1. A support pad 5 is fixedly installed on one opposite side of the horizontally placed frame 4 at the end away from the portal frame 3 along its width direction, and a bearing seat 6 is fixedly installed on each support pad 5; A rotating shaft 7 is inserted into each of the two bearing seats 6, and the adjacent ends of the two rotating shafts 7 are fixedly connected to the outer wall of the molten iron ladle 8.

[0018] In the above embodiments, at least three or more movable wheels 2 are provided on the lower side of the movable base 1 of this application, and the projection of the overall center of gravity of the equipment onto the horizontal plane falls within the plane enclosed by all the movable wheels 2. In this way, even when the molten iron transport device of this application is not in use, the movable wheels 2 can stably support the movable base 1 and its attached components (to improve the stability in the static state, movable wheels 2 with self-locking function are preferred). The portal frame 3 on the movable base 1 can provide an installation base for the horizontal placement frame 4, so that the horizontal placement frame 4 is at an ideal height. The primary condition for this height is to facilitate the pouring of molten iron from the ladle 8 into the mold, and secondly, to make the operator's posture as comfortable as possible.

[0019] On the horizontal placement frame 4, the support plate 5 is connected to the rotating shaft 7 on the molten iron ladle 8 through the bearing seat 6. The molten iron ladle 8 is usually in a vertical position in the air under the action of gravity. Since its rotating shaft 7 is installed in the bearing seat 6, when the transport device of this application moves to the mold to be poured, the worker can rotate any one of the rotating shafts 7 to make the molten iron ladle 8 flip on the horizontal placement frame 4, thereby achieving the purpose of pouring molten iron into the casting mold.

[0020] The movable base frame 1 and the portal frame 3 of this application are in a mutually perpendicular state. Their side views are similar to an "L" shape. The horizontal placement frame 4 is located directly above the movable base frame 1 on the portal frame 3. Its plane is parallel to the plane of the movable base frame 1. This state does not require human intervention to maintain during the entire equipment movement process. Even if the equipment is not moving, the molten iron ladle 8 on the horizontal placement frame 4 can be suspended in the air simply by relying on their relative positional structure. Therefore, compared with the prior art (the molten iron transfer carts provided in the patent documents with application numbers 202323222392.X and 201120402905.3), workers can avoid the trouble of continuously applying downward pressure to the main rod to maintain the molten iron ladle 8 in the air. Correspondingly, since the transfer carts in the prior art rely on manpower to maintain the position of the molten iron ladle 8 in the air, it is difficult for workers to control the strength of their hands to a constant value during the transfer process. This will actually increase the risk of the molten iron ladle 8 swaying. However, the molten iron ladle 8 of this application is based on the stability of the horizontal placement frame 4 below it during the transfer process. Obviously, the risk of the molten iron ladle 8 swaying due to human factors can also be effectively reduced, and the safety of use can be further guaranteed.

[0021] Furthermore, such as Figures 1-3 As shown, the two rotating shafts 7 have square-headed ends that are far apart from each other, and a rotating handle 9 is installed on the square-headed end of one of the rotating shafts 7.

[0022] In the above embodiments, the rotating handle 9 has a mounting hole at its center that matches the square head structure on the rotating shaft 7. This allows the rotating handle 9 to be freely installed on the square head end of either rotating shaft 7 as needed. Alternatively, when pouring the molten iron ladle 8, a rotating handle 9 can be installed on both rotating shafts 7, allowing two workers to work together to drive the ladle 8 to pour the molten iron into the mold. In this application, the rotating handle 9 has a rotating handle on one opposite side of the mounting hole, with a grip at the end of the handle. When the worker drives the ladle 8 to pour the molten iron using the grip, the rotating handle acts like a lever arm, saving the worker's effort and increasing the safe distance between the worker and the ladle 8.

[0023] Furthermore, such as Figure 1 and Figure 2As shown, a limiting bracket 10 is provided on the lower side of one side of the rotating handle 9, and the limiting bracket 10 is fixedly connected to the horizontal placement frame 4. When the pouring port of the molten iron ladle 8 is directly above, the rotating handle 9 is in a horizontal position and in contact with the horizontal section of the limiting angle brace 10.

[0024] In the above embodiments, the handle in the rotating handle 9 of this application is in a horizontal state when the ladle 8 is in a vertical state, and the limiting bracket 10 is set below the rotating handle 9 on the side close to the portal frame 3. The rotating handle 9 in the horizontal state and the handle on the corresponding side of the limiting bracket 10 are placed on the horizontal section of the limiting bracket 10. In this way, when pouring molten iron, the rotation direction can be limited to prevent the worker from reversing the ladle 8 and causing the molten iron to be poured out towards the portal frame 3.

[0025] Furthermore, such as Figures 1-3 As shown, the horizontally placed frame 4 and the portal frame 3 are slidably connected in the vertical direction; A self-locking lifting unit 11 is installed on the portal frame 3. The lifting unit 11 is connected to the portal frame 3. The specific position of the horizontally placed frame 4 in the vertical direction can be adjusted through the lifting unit 11.

[0026] In the above embodiments, the two vertical sections of the portal frame 3 are both channel steel structures. The horizontal placement frame 4, with its end near the portal frame 3, is inserted into the slots of the two channel steel structures along its width. In this way, the portal frame 3 can guide and limit the movement direction of the horizontal placement frame 4, allowing it to change position only in the vertical direction. The hoisting unit 11 provided on the portal frame 3 is for the convenience of workers to accurately adjust the vertical position of the horizontal placement frame 4.

[0027] Furthermore, such as Figures 1-3 As shown, the hoisting unit 11 includes a fixed pulley 111 fixedly installed on the lower side of the horizontal beam of the portal frame 3. A winch 112 is installed on the side of the portal frame 3 opposite to the horizontal placement frame 4. The hoisting wire 113 on the winch 112 extends upward, passes around the fixed pulley 111, and is fixedly tied together with the horizontal placement frame 4 in the vertical direction downward.

[0028] In the above embodiments, the winch 112 is a machine with a vertically installed cable drum that can wind but not store rope under power drive. There is a height difference between the fixed pulley 111 located on the lower side of the portal frame 3 and the winch 112. The fixed pulley 111 can change the direction of the traction force of the lifting wire 113 on the winch 112. After passing around the fixed pulley 111, the lifting wire 113 continues downward to the horizontal placement frame 4 and is tied to the pre-set lifting hole on the horizontal placement frame 4. Because of the action of the fixed pulley 111, when the worker rotates the winch 112 to gather the lifting wire 113, the horizontal placement frame 4 can move upward to a greater range, and can even be lifted to a position very close to the horizontal crossbeam of the portal frame 3.

[0029] In actual production, not all molds to be poured are of the same height. If workers use the existing transfer trolley to pour molten iron into molds of different heights, they need to press down or lift the main rod to change the position of the ladle 8. After adjusting the position, while maintaining the current height of the ladle 8, the workers also need to apply rotational force to the main rod to slowly rotate the ladle 8 in order to complete the pouring operation. This process requires a high level of coordination of the workers' strength. In addition, in order to save effort, the length between the ladle 8 and the fulcrum is often short, so the actual adjustable height is limited.

[0030] In this application, the winch 112 and the ladle 8 are not directly connected. During the operation of the winch 112, the ladle 8 moves smoothly vertically along with the horizontal placement frame 4. After adjusting the height of the horizontal placement frame 4, the worker moves to the horizontal placement frame 4 and adjusts the angle of the ladle 8 by turning the handle 9 to pour the molten iron. This method is more convenient for the worker to control, and adjusting the height of the ladle 8 through the winch 112 is safer, simpler, and more precise than adjusting the ladle 8 by swinging the main rod up and down. In addition, the vertical adjustable range of the ladle 8 in the transportation device of this application is significantly wider.

[0031] Furthermore, such as Figure 3 As shown, the winch 112 is preferably a worm gear hand-cranked winch.

[0032] In the above embodiments, the worm gear hand-cranked winch is entirely driven by human power and requires no electricity. This ensures that its operational performance is not significantly affected even in high ambient temperatures. The worm gear transmission component in the worm gear hand-cranked winch inherently has a large reduction ratio; the drum only rotates slightly after many turns of the handle. This means it amplifies human effort, generating significant traction or lifting force with relatively small hand cranking force, resulting in significantly less labor for workers. The meshing of the worm and worm gear is gradual, resulting in a very smooth transmission process with almost no impact or vibration. This allows for precise and stable vertical control of the molten iron ladle 8 on the horizontally placed frame 4, even when filled with molten iron.

[0033] In worm gear drives, the worm is the driving element, and the worm wheel is the driven element. Because the worm's helix angle is very small, it generates enormous frictional resistance, causing power to be transmitted only from the worm to the worm wheel, making reverse transmission extremely difficult. This characteristic is equivalent to a highly reliable mechanical brake built into the winch 112. Whether lifting, traction, or suspending heavy objects, as soon as the handle on the winch 112 is released, the heavy object will immediately be "locked" in its current position, preventing it from moving backward or slipping due to gravity or external forces. This clearly provides ample safety assurance when hoisting the molten iron ladle 8.

[0034] Furthermore, such as Figure 3 As shown, a fixing plate 12 is fixedly installed on the lower side of the winch 112 on the portal frame 3, and a drive push handle 13 is hinged to the side of the fixing plate 12 away from the portal frame 3.

[0035] In the above embodiments, the drive pusher 13 configured as described above can facilitate workers to drive the entire device to move in a specified direction.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A molten iron transport device, characterized in that: It includes a movable base frame (1), with movable wheels (2) installed below the movable base frame (1) for moving, and a portal frame (3) fixedly installed on the upper side of one end of the movable base frame (1), and a horizontal placement frame (4) installed on the side of the portal frame (3) facing the other end of the movable base frame (1). A support pad (5) is fixedly installed on one side of the horizontal placement frame (4) away from the portal frame (3) along its width direction, and a bearing seat (6) is fixedly installed on each support pad (5). A rotating shaft (7) is inserted into each of the two bearing seats (6), and the two rotating shafts (7) are fixedly connected to the outer wall of the molten iron ladle (8) at their close proximity ends.

2. The molten iron transport device according to claim 1, characterized in that: Both of the rotating shafts (7) have square ends at their far ends, and one of the rotating shafts (7) has a rotating handle (9) installed at its square end.

3. The molten iron transport device according to claim 2, characterized in that: A limiting angle brace (10) is provided on the lower side of one side of the rotating handle (9), and the limiting angle brace (10) is fixedly connected to the horizontal placement frame (4); When the pouring port of the molten iron ladle (8) is directly above, the rotating handle (9) is in a horizontal state and in contact with the horizontal section of the limiting angle brace (10).

4. The molten iron transport device according to any one of claims 1 to 3, characterized in that: The horizontal placement frame (4) and the portal frame (3) are slidably connected in the vertical direction; The portal frame (3) is equipped with a self-locking lifting unit (11), which is connected to the portal frame (3). The lifting unit (11) can adjust the specific position of the horizontal placement frame (4) in the vertical direction.

5. The molten iron transport device according to claim 4, characterized in that: The hoisting unit (11) includes a fixed pulley (111) fixedly installed on the lower side of the horizontal beam of the portal frame (3). A winch (112) is installed on the side of the portal frame (3) opposite to the horizontal placement frame (4). The hoisting wire (113) on the winch (112) extends upward, passes around the fixed pulley (111), and is fixedly tied together with the horizontal placement frame (4) in the vertical direction downward.

6. The molten iron transport device according to claim 5, characterized in that: The winch (112) is preferably a worm gear hand-cranked winch.

7. The molten iron transport device according to claim 5, characterized in that: The winch (112) has a fixed plate (12) fixedly installed on the portal frame (3) on its lower side, and a drive push handle (13) is hinged to the side of the fixed plate (12) away from the portal frame (3).

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