Small ladle carrier with closing device

Abstract

The utility model provides a small -size ladle tank transport vechicle with lid closing device belongs to molten iron transportation technical field, technical scheme is a small -size ladle tank transport vechicle with lid closing device, including the cover, be provided with two levers on the cover, two levers are located cover's both sides respectively, lever is L shape structure, one end of lever is fixedly connected with the side of cover, the other end of lever is rotatably connected with the piston rod end of hydraulic cylinder, the cylinder tube of hydraulic cylinder is rotatably connected with the top of fixed frame, the bottom of fixed frame is fixedly connected with the top of car body. The utility model has the beneficial effect that the lever of L shape is through the extension power arm length, has reduced the driving force required by cover opening significantly, effectively prevents the unexpected back fall of cover in the rising position, ensures the safety reliability of operation process.

Description

Technical Field

[0001] This utility model belongs to the field of molten iron transportation technology, specifically relating to a small molten iron ladle transport vehicle with a lid-closing device. Background Technology

[0002] In metallurgical production, small molten iron ladle transport cars are key equipment for short-distance molten iron transportation, and effectively covering their tops is of great importance. If the top of the ladle is open during transport, it will generate a large amount of smoke and dust emissions and fly iron oxide scale, which not only seriously pollutes the working environment and endangers the health of operators, but also increases subsequent environmental treatment costs. At the same time, due to the lack of effective covering during transport and waiting, a large amount of heat will be lost through the top of the ladle, causing the molten iron temperature to drop and affecting the production efficiency and product quality of subsequent steelmaking processes.

[0003] The existing lid-closing device mainly consists of a lid, a rotating connection structure, a handle, and a support rod. One side of the lid is fixedly connected to a bracket on the top of the can via a rotating connection shaft, allowing the lid to rotate around the shaft and open / close. A handle is fixedly installed at the center of the lid's top for easy manual operation. By pulling the handle, the operator uses leverage to lift the lid upwards around the shaft, thus opening the can. Once the lid is opened to a suitable angle, it is supported and limited by a retractable support rod. One end of the support rod is rotatably connected to a fixed seat on the side of the can, and the other end engages with a groove on the bottom of the lid. By adjusting the length of the support rod, it is locked into the groove, keeping the lid fixed in the open position.

[0004] However, in practical applications, the stability of the support rod is significantly insufficient. When the ladle is in the loading position, although the vehicle is usually stationary, the violent impact of molten iron during loading and the mechanical vibration when pouring molten iron can cause the fit between the support rod and the ladle cover slot to loosen. Once the support structure fails, the ladle cover may fall unexpectedly due to its own weight or vibration, which will not only interfere with the normal loading process of molten iron, but may even cause molten iron to splash due to the ladle cover hitting the edge of the ladle, posing a safety threat to nearby operators. Utility Model Content

[0005] This invention addresses the problem that existing lid-closing devices are prone to loosening when supporting the ladle lid, leading to the lid falling off accidentally. It provides a small molten iron ladle transport vehicle with a lid-closing device that can stably support the ladle lid and prevent it from falling off accidentally.

[0006] To solve the above problems, the technical solution adopted by this utility model is a small molten iron ladle transport car with a lid-closing device, including a car body and a ladle lid. The ladle lid is provided with two levers, which are located on both sides of the ladle lid. The levers are L-shaped, and each lever includes a horizontal rod and a vertical rod. One end of the horizontal rod is fixedly connected to the side of the ladle lid, and the other end of the horizontal rod is fixedly connected to the upper end of the vertical rod. The lower end of the vertical rod is rotatably connected to the piston rod end of a hydraulic cylinder. The cylinder barrel of the hydraulic cylinder is rotatably connected to the top of a fixed frame, and the bottom of the fixed frame is fixedly connected to the top of the car body. The car body also includes a support frame set outside the ladle. The bottom of the support frame can be fixedly connected to the side wall of the ladle, and a support rod is fixed to the top of the support frame. The two ends of the support rod are rotatably connected to the two horizontal rods respectively.

[0007] In this technical solution, L-shaped levers are provided on both sides of the lid. Each lever includes a horizontal rod and a vertical rod. One end of the horizontal rod is fixedly connected to the side of the lid, and the other end is fixedly connected to the upper end of the vertical rod. The lower end of the vertical rod is rotatably connected to the piston rod of a hydraulic cylinder. The cylinder barrel of the hydraulic cylinder is rotatably connected to the top of a fixed frame, and the bottom of the fixed frame is fixedly connected to the top of the vehicle body. The bottom of the support frame can be fixedly connected to the side wall of the can, and a support rod is fixed to the top of the support frame. The two ends of the support rod are rotatably connected to the two horizontal rods respectively. When the piston rod of the hydraulic cylinder extends, it pushes the lever to rotate around the rotatable connection, thereby lifting the lid upward. The L-shaped lever design effectively extends the power arm, making the lid lifting process less strenuous and preventing the lid from accidentally falling while raised by forming a stable support structure.

[0008] Furthermore, there are two support frames, evenly distributed along the length of the support rod. Each support frame can support one of the two levers, ensuring stable rotation of both levers.

[0009] Furthermore, the horizontal and vertical rods are perpendicular to each other. When the hydraulic cylinder piston rod pushes the lower end of the vertical rod, the horizontal rod, acting as a resistance arm, can utilize a longer leverage ratio to generate greater torque under the same hydraulic driving force. This makes the ladle opening process less strenuous, reducing the energy consumption and load on the hydraulic cylinder, and is particularly suitable for the frequent opening and closing operations of heavy-duty molten iron ladles. The vertical connection between the horizontal and vertical rods forms an L-shaped rigid frame, which is less prone to bending deformation under stress compared to a single-rod structure.

[0010] Furthermore, a connecting rod is installed between the two vertical rods, with both ends of the connecting rod fixedly connected to the two vertical rods respectively. The connecting rod connects the two vertical rods into a whole, forming a stable frame structure that effectively resists deformation caused by external forces. During the transportation of molten iron ladles or the opening and closing of the ladle lid, even if vibration or impact occurs, this structure can maintain the relative position of the vertical rods, preventing the ladle lid from shifting due to lever swaying, and ensuring the stability of system operation. When the lever is under force, the force on the vertical rods can be transferred and dispersed through the connecting rod. This avoids the problem of local stress concentration in a single vertical rod, reduces the risk of rod deformation and damage, extends the service life of the overall structure, and improves the force transmission efficiency when the lever drives the ladle lid. The closed frame formed by the connecting rod and the vertical rods can effectively resist torque. When the hydraulic cylinder drives the lever to rotate, it can prevent the vertical rods from twisting, ensuring the accuracy of the lever's movement trajectory, allowing the ladle lid to open and close smoothly, and avoiding ladle lid jamming or incomplete closure due to rod twisting.

[0011] Furthermore, there are two connecting rods, which are fixed between the two vertical rods in an X-shaped intersection. The X-shaped intersection layout creates a diagonal intersection structure in the vertical plane, forming a rigid frame similar to a truss together with the two vertical rods. When subjected to impact forces from any direction, this structure can distribute the external force throughout the entire frame through the mutual cancellation of diagonal tension and pressure, significantly reducing the risk of bending deformation of the vertical rods.

[0012] Furthermore, the mounting bracket includes two parallel mounting plates with a fixing rod between them. The two ends of the fixing rod are fixedly connected to the tops of the two mounting plates, and the fixing rod is rotatably connected to the cylinder of the hydraulic cylinder. The bottom of the mounting plates is fixedly connected to the top of the vehicle body. The two parallel mounting plates are connected by the fixing rod to form a rigid "gate" frame. When the hydraulic cylinder drives the lever, the thrust or tension on the cylinder is evenly transmitted to the two mounting plates through the fixing rod, preventing bending deformation of one side of the plate due to uneven stress and ensuring the overall support strength of the mounting bracket. The parallel mounting plates constrain the lateral displacement of the mounting bracket, while the top fixing rod bears the vertical load and torque of the hydraulic cylinder. When the hydraulic cylinder piston rod extends to press up the cover, the cylinder generates an upward reaction force. The fixing rod, through its connection with the two mounting plates, distributes this force to the top of the vehicle body, preventing localized overload.

[0013] Furthermore, a rotating rod is provided on the outer side of the vertical rod. One end of the rotating rod is rotatably connected to the lower end of the vertical rod, and a stop is installed at the other end of the rotating rod. The stop can limit the end of the piston rod of the hydraulic cylinder.

[0014] Furthermore, a groove is provided on the inner side of the horizontal bar near the cover. The length of the groove is the same as the length of the horizontal bar, and the width of the groove is the same as the thickness of the cover. A locking mechanism is provided on the horizontal bar to lock the cover within the groove. The groove's length matches the horizontal bar, and its width matches the cover's thickness, forming a "slot-type" guide structure. During installation, the side of the cover can be inserted along the groove, and the geometric constraint of the groove prevents the cover from shifting horizontally. If the vehicle bumps during transportation, the groove can limit the cover's lateral movement, preventing seal failure or wear of connecting parts due to loosening.

[0015] Furthermore, the locking mechanism includes several locking screw holes, which are located at the top of the horizontal bar and are all connected to the sliding groove. Each locking screw hole contains a locking bolt. The connection between the locking screw holes and the sliding groove means that the cover can first slide along the length of the sliding groove to the target position, and then be locked by tightening the corresponding locking bolt, facilitating fine-tuning of the cover's position.

[0016] Furthermore, the cylindrical surfaces of the support rod, fixed rod, and rotating rod are all coated with a lubricating medium. This lubricating medium effectively reduces frictional resistance.

[0017] As can be seen from the above technical solution, the advantages of this utility model are as follows: In this technical solution, L-shaped levers are respectively provided on both sides of the cover. Each lever consists of a horizontal rod and a vertical rod. One end of the horizontal rod is fixedly connected to the side of the cover, and the other end is fixedly connected to the upper end of the vertical rod. The lower end of the vertical rod is rotatably connected to the piston rod end of the hydraulic cylinder, and the cylinder barrel of the hydraulic cylinder is rotatably connected to the top of the fixing frame. The bottom of the fixing frame is fixedly connected to the top of the vehicle body. In addition, the bottom of the support frame can be fixed to the side wall of the bag, and a support rod is fixed to its top. The two ends of the support rod are rotatably connected to the two horizontal rods respectively. When the piston rod of the hydraulic cylinder extends, it pushes the lever to rotate around the rotatable connection, thereby lifting the cover upward. In summary, the use of L-shaped levers can effectively extend the power arm, which not only makes the lifting of the cover less strenuous, but also prevents the cover from accidentally falling off when raised by forming a stable support structure. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model;

[0020] Figure 2for Figure 1 Enlarged view of a portion of point A in the middle;

[0021] Figure 3 for Figure 1 Enlarged view of section B in the middle.

[0022] In the diagram: 1. Vehicle body; 2. Tank; 21. Support frame; 22. Support rod; 3. Cover; 4. Lever; 41. Horizontal rod; 411. Slide groove; 42. Vertical rod; 5. Hydraulic cylinder; 6. Fixing frame; 61. Fixing plate; 62. Fixing rod; 7. Connecting rod; 8. Rotating rod; 81. Stop block; 9. Locking mechanism; 91. Locking screw hole; 92. Locking bolt. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0024] A small molten iron ladle transport vehicle with a lid-closing device, such as Figure 1 As shown, the device includes a cover 3, on which two levers 4 are provided. The two levers 4 are parallel to each other and are located on both sides of the cover 3. The levers 4 are L-shaped in shape. One end of the lever 4 is fixedly connected to the side of the cover 3. A hydraulic cylinder 5 is provided at the lower part of the lever 4. The cylinder of the hydraulic cylinder 5 is rotatably connected to the top of the fixing frame 6. The bottom of the fixing frame 6 is fixedly connected to the top of the vehicle body 1. The piston rod of the hydraulic cylinder 5 is rotatably connected to the other end of the lever 4. The piston rod of the hydraulic cylinder 5 can push the lever 4 to rotate around the central rotating connection, thereby causing the cover 3 to be lifted upward.

[0025] In this specific embodiment, the outer surface of the container 2 is provided with two parallel support frames 21. The bottom of the support frame 21 is welded to the side wall of the container 2, and a horizontally arranged support rod 22 is fixed to the top of the support frame 21. The support rod 22 passes through the top of the two support frames 21 and is welded to them. The two ends of the support rod 22 pass through two levers 4 respectively and are rotatably connected to the levers 4. The outer circumference of the rotatable connection of the support rod 22 is coated with a lubricating medium.

[0026] like Figure 2As shown, each lever 4 consists of a horizontal rod 41 and a vertical rod 42 that are perpendicular to each other. The horizontal rod 41 is initially arranged horizontally, and the vertical rod 42 is also initially arranged vertically. A groove 411 is provided on the inner side of the horizontal rod 41 near the cover 3. The length direction of the groove 411 is the same as that of the horizontal rod 41, and the width of the groove 411 matches the thickness of the cover 3. The side of the cover 3 can be engaged in the groove 411 and can slide along the groove 411 to finely adjust its position. A locking mechanism 9 is provided on the horizontal rod 41. The locking mechanism 9 includes several locking screw holes 91 that are evenly distributed at equal intervals along the length direction of the horizontal rod 41. All screw holes communicate with the groove 411 and are fitted with locking bolts 92. The locking bolts 92 pass through the locking screw holes 91 and are inserted into the connecting holes on the side of the cover 3, thereby fixing the cover 3 in the groove 411.

[0027] The middle part of the horizontal rod 41 is rotatably connected to the support rod 22 via a bearing, and the other end of the horizontal rod 41 is welded to the upper end of the vertical rod 42. The lower end of the vertical rod 42 has a mounting hole, in which a rotating rod 8 is fitted. A lubricating medium is sprayed onto the cylindrical surface of the rotating rod 8. The rotating rod 8 is located outside the vertical rod 42. One end of the rotating rod 8 is rotatably connected to the mounting hole via a bearing, and the other end of the rotating rod 8 passes through the inner ring of the bearing at the piston rod end of the hydraulic cylinder 5 and is bolted to a stop block 81, which limits the movement of the piston rod end of the hydraulic cylinder 5.

[0028] Two connecting rods 7 are installed between the two vertical rods 42, and the two connecting rods 7 are welded to the two vertical rods 42 in an X-shape. For example... Figure 3 As shown, the mounting bracket 6 consists of two parallel vertical mounting plates 61, with a mounting rod 62 positioned between the two mounting plates 61. The cylindrical surface of the mounting rod 62 is coated with a lubricating medium. The mounting rod 62 passes through the inner ring of the bearing at the cylinder of the hydraulic cylinder 5. Both ends of the mounting rod 62 are fixedly connected to the tops of the two mounting plates 61 by bolts, while the bottoms of the mounting plates 61 are fixedly connected to the top of the vehicle body 1 by bolts.

[0029] The specific usage process of this utility model is as follows: In specific operation, first, the ladle cover 3 is placed on the ladle 2, so that the two sides of the ladle cover 3 are respectively inserted into the corresponding grooves 411 of the horizontal rod 41. Then, the ladle cover 3 is slid to adjust its position until it completely covers the ladle 2. Then, the locking bolt 92 is passed through the locking screw hole 91 at the top of the horizontal rod 41 and fixedly connected to the ladle cover 3. At this time, the ladle cover 3 is fixed in the groove 411 and cannot slide. When it is necessary to fill molten iron, the piston rod of the hydraulic cylinder 5 is extended, and the piston rod pushes the lower end of the vertical rod 42, causing the horizontal rod 41 to rotate upward around the support rod 22. The ladle cover 3 opens simultaneously to fill molten iron. When it is time to transport after filling, the piston rod of the hydraulic cylinder 5 is retracted, and the piston rod pulls back the lower end of the vertical rod 42. The horizontal rod 41 rotates downward around the support rod 22 until the ladle cover 3 is stably fastened on the ladle 2.

[0030] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: In this specific embodiment, L-shaped levers are respectively provided on both sides of the cover. Each lever includes a horizontal rod and a vertical rod. One end of the horizontal rod is fixedly connected to the side of the cover, and the other end of the horizontal rod is fixedly connected to the upper end of the vertical rod. The lower end of the vertical rod is rotatably connected to the piston rod end of the hydraulic cylinder. The cylinder barrel of the hydraulic cylinder is rotatably connected to the top of the fixing frame, and the bottom of the fixing frame is fixedly connected to the top of the vehicle body. The bottom of the support frame can be fixedly connected to the side wall of the bag, and a support rod is fixed to the top of the support frame. The two ends of the support rod are rotatably connected to the two horizontal rods respectively. When the piston rod of the hydraulic cylinder extends, it pushes the lever to rotate around the rotatable connection, thereby lifting the cover upward. The L-shaped lever design can effectively extend the power arm, making the lifting process of the cover less strenuous and preventing the cover from accidentally falling off when raised by forming a stable support structure.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A small molten iron ladle transport car with a lid-closing device, comprising a car body (1) and a ladle lid (3), characterized in that, The cover (3) is provided with two levers (4), which are located on both sides of the cover (3). The levers (4) are L-shaped structures. Each lever (4) includes a horizontal rod (41) and a vertical rod (42). One end of the horizontal rod (41) is fixedly connected to the side of the cover (3), and the other end of the horizontal rod (41) is fixedly connected to the upper end of the vertical rod (42). The lower end of the vertical rod (42) is rotatably connected to the piston rod end of the hydraulic cylinder (5). The cylinder of the hydraulic cylinder (5) is rotatably connected to the top of the fixing frame (6), and the bottom of the fixing frame (6) is fixedly connected to the top of the vehicle body (1). It also includes a support frame (21) set outside the can (2). The bottom of the support frame (21) can be fixedly connected to the side wall of the can (2). The top of the support frame (21) is fixed with a support rod (22), and the two ends of the support rod (22) are rotatably connected to the two horizontal rods (41) respectively.

2. The small molten iron ladle transport car with a lid-closing device according to claim 1, characterized in that, There are two support frames (21), and the two support frames (21) are evenly distributed along the length of the support rod (22).

3. The small molten iron ladle transport car with a lid-closing device according to claim 2, characterized in that, The horizontal bar (41) and the vertical bar (42) are perpendicular to each other.

4. The small molten iron ladle transport car with a lid-closing device according to claim 3, characterized in that, A connecting rod (7) is provided between the two vertical rods (42), and the two ends of the connecting rod (7) are fixedly connected to the two vertical rods (42) respectively.

5. The small molten iron ladle transport car with a lid-closing device according to claim 4, characterized in that, There are two connecting rods (7), which are fixed between two vertical rods (42) in an X-shape.

6. The small molten iron ladle transport car with a lid-closing device according to claim 3, characterized in that, The fixing frame (6) includes two parallel fixing plates (61), and a fixing rod (62) is provided between the two fixing plates (61). The two ends of the fixing rod (62) are fixedly connected to the top of the two fixing plates (61) respectively. The fixing rod (62) is rotatably connected to the cylinder of the hydraulic cylinder (5). The bottom of the fixing plate (61) is fixedly connected to the top of the vehicle body (1).

7. The small molten iron ladle transport car with a lid-closing device according to claim 6, characterized in that, A rotating rod (8) is provided on the outside of the vertical rod (42). One end of the rotating rod (8) is rotatably connected to the lower end of the vertical rod (42), and a stop block (81) is installed on the other end of the rotating rod (8).

8. The small molten iron ladle transport car with a lid-closing device according to claim 3, characterized in that, A groove (411) is provided on the inner side of the horizontal rod (41) near the cover (3). The length direction of the groove (411) is the same as the length direction of the horizontal rod (41). The width of the groove (411) is the same as the thickness of the cover (3). A locking mechanism (9) is provided on the horizontal rod (41). The locking mechanism (9) can lock the cover (3) in the groove (411).

9. The small molten iron ladle transport car with a lid-closing device according to claim 8, characterized in that, The locking mechanism (9) includes several locking screw holes (91), which are located on the top of the horizontal bar (41) and are connected to the slide groove (411). Each locking screw hole (91) is equipped with a locking bolt (92).

10. The small molten iron ladle transport car with a lid-closing device according to claim 7, characterized in that, The cylindrical surfaces of the support rod (22), the fixed rod (62), and the rotating rod (8) are all coated with a lubricating medium.

Images