Novel metallurgical trolley

Abstract

A main trolley comprises a trolley body, a horizontal lifting beam and a main lifting hook, the horizontal lifting beam perpendicular to the advancing direction of the trolley body is arranged below the trolley body, and the two ends of the horizontal lifting beam are matched with a main lifting mechanism in a lifting mode through steel wire ropes; main lifting hooks used for lifting a steel ladle are arranged at the two ends of the lower portion of the horizontal lifting beam, an auxiliary frame arranged in the advancing direction of the trolley body is arranged on the lower portion of the trolley body, and a kangaroo trolley capable of advancing along the auxiliary frame and shuttling to the two sides of the trolley body is arranged on the auxiliary frame. The lower part of the kangaroo trolley is provided with an auxiliary lifting hook which is connected with a lifting mechanism in the kangaroo trolley and is used for carrying out pouring operation on the steel ladle; according to the invention, the problems of difficulty in building equipment, incapability of meeting the requirement on the tipping angle of the steel ladle and incapability of bidirectional dumping operation due to low plant height in field use of the current steel industry are successfully solved, the building cost of hoisting equipment is greatly saved, and great convenience is provided for hoisting and dumping operation of the steel ladle.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, and in particular to a novel metallurgical trolley. Background Art

[0002] Metallurgical cranes are indispensable equipment in steel plants and play a vital role. Metallurgical crane trolleys are mainly used for dumping operations. Since the internal and external temperatures of molten steel, molten iron and slag bags are very high, the coordinated operation of the main and auxiliary hooks is the key to achieving reliable and safe hooking, which can improve work efficiency and reduce the workload of manual hooking.

[0003] Most of the existing metallurgical trolleys are double trolley structures with a secondary trolley on one side of the main trolley. Since the distance between the main and secondary trolleys is fixed, the distance between the main and secondary hooks cannot be adjusted. This not only fails to meet the lifting operation of ladles of different specifications, but also easily leads to the overturning angle not meeting the requirements or the wire rope being pulled obliquely during the ladle tipping operation, which poses certain safety hazards. The existing metallurgical trolleys with double trolley structures also use a movable auxiliary trolley to adjust the distance between the main hook and the auxiliary hook. However, this type of metallurgical trolley needs to be equipped with a four-beam four-track bridge structure, which not only increases the weight and width of the equipment, but also requires a factory building to meet the construction requirements during the construction process, resulting in high costs; In addition, the existing metallurgical trolley with a double trolley structure cannot meet the bidirectional tipping operation of the ladle, and has great limitations. Summary of the invention

[0004] In order to overcome the deficiencies in the background technology, the present invention discloses a novel metallurgical trolley, which successfully solves the problems currently faced by the steel industry in on-site use, such as the difficulty in setting up equipment due to low plant height, the ladle tipping angle not meeting the requirements, and the inability to perform two-way dumping operations. It greatly saves the cost of setting up the lifting equipment and provides great convenience for the lifting and dumping operations of the ladle.

[0005] To achieve the above object, the present invention adopts the following technical solution: A new type of metallurgical trolley comprises a double-beam bridge frame, and a main trolley installed on the double-beam bridge frame, the main trolley comprises a car body, a main lifting mechanism, a wire rope, a horizontal lifting beam and a main hook, the main lifting mechanism is provided on the upper part of the car body, and traveling mechanisms matched with the double-beam bridge frame are provided at both ends of the lower part of the car body, a horizontal lifting beam perpendicular to the moving direction of the car body is provided under the car body, and both ends of the horizontal lifting beam are lifted and lowered with the main lifting mechanism through wire ropes, and main hooks for lifting steel ladles are provided at both ends of the lower part of the horizontal lifting beam, and a sub-frame arranged along the moving direction of the car body is provided at the lower part of the car body, and a kangaroo trolley which can move along the sub-frame and shuttle to both sides of the car body is provided on the sub-frame, and the kangaroo trolley is provided at the lower part of the kangaroo trolley, which is connected with the lifting mechanism in the kangaroo trolley and is used for dumping the steel ladle.

[0006] Furthermore, the main lifting mechanism is a double winding roller mechanism, which is fixedly connected to both ends of the horizontal lifting beam through two sets of steel wire ropes, and the sub-frame under the vehicle body is located between the two sets of steel wire ropes.

[0007] Furthermore, a balance beam is provided between the two sets of steel wire ropes to keep the horizontal hanging beam stably lifted and lowered.

[0008] Furthermore, the sub-frame includes a mounting plate, a support plate and a track. The lower part of the vehicle body is provided with two mounting plates which are perpendicular to the vehicle body and parallel to each other. The lower sides of the opposite surfaces of the two mounting plates are provided with support plates which are perpendicular to the mounting plates. The upper surfaces of the support plates are provided with tracks which match the kangaroo car.

[0009] Furthermore, both ends of the track are provided with limit blocks for limiting the position of the kangaroo cart.

[0010] Furthermore, both ends of the sub-frame in the direction of travel are provided with a limit protection mechanism A for preventing the sub-frame from colliding and being damaged with the double-beam bridge frame. The limit protection mechanism A includes a limit plate and an elastic member. Both ends of the mounting plate in the sub-frame are provided with a limit plate, and the limit plate and the end surface of the mounting plate are elastically connected by an elastic member.

[0011] Furthermore, the position limiting protection mechanism A also includes a touch sensor which is arranged on the end surface of the mounting plate and is controllably connected to the traveling mechanism in the main trolley.

[0012] Furthermore, both sides of the horizontal hanging beam are provided with a limit protection mechanism B which has the same structure as the limit protection mechanism A and is used to prevent the wire rope or the auxiliary hook from colliding and being damaged with the horizontal hanging beam. The touch sensor in the limit protection mechanism B is connected to the kangaroo car control.

[0013] Compared with the prior art, the invention has the following beneficial effects: by arranging a shuttle-travel kangaroo trolley at the lower part of the main trolley, not only the left-right bidirectional tipping operation of the ladle can be realized by the left-right shuttle travel of the kangaroo trolley, but also the movement of the kangaroo trolley can be synchronously controlled during the process of lifting the auxiliary hook to tip the ladle, thereby avoiding the phenomenon of inclined pulling of the wire rope; By setting up a sub-frame under the main trolley, the problem of the deadweight and large width of the four-beam four-track lifting equipment is avoided, and the foundation requirements for the factory building during the installation of the lifting equipment are effectively reduced; By setting the limit protection mechanism A, when the end of the sub-frame comes into contact with the double-beam bridge frame while the sub-frame is driven by the main trolley, the main trolley can be stopped and limited in time, thereby avoiding collision damage between the sub-frame and the double-beam bridge frame; By setting the limit protection mechanism B, when the kangaroo trolley is shuttling without reeling in the auxiliary hook, when the wire rope or the auxiliary hook comes into contact with the horizontal beam, the kangaroo trolley can be stopped and limited in time, thereby avoiding collision damage to the horizontal beam; By changing the distance between the main hook and the auxiliary hook, hooking and two-way dumping operations can be achieved, and all the functions required by metallurgical cranes can be realized safely, efficiently and energy-savingly. It innovatively and successfully solves the problems of low plant height, tipping angle and two-way use faced by on-site use in the steel industry.

[0014] The present invention successfully solves the problems currently faced by the steel industry in on-site use, such as the difficulty in setting up equipment due to the low height of the plant, the ladle tipping angle not meeting the requirements, and the inability to perform two-way tipping operations. It greatly saves the cost of setting up the lifting equipment and provides great convenience for the lifting and tipping operations of the ladle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the main trolley and the kangaroo trolley of the present invention; Figure 3 It is a schematic diagram of the subframe structure of the present invention; Figure 4 It is a schematic diagram of the structure of the position limiting protection mechanism A of the present invention; Figure 5 The figure is a schematic diagram of the kangaroo cart of the present invention.

[0016] In the figure: 1. Main trolley; 2. Kangaroo trolley; 3. Double-beam bridge; 4. Main lifting mechanism; 5. Car body; 6. Balance beam; 7. Traveling mechanism; 8. Auxiliary frame; 9. Limit protection mechanism A; 10. Wire rope; 11. Auxiliary hook; 12. Horizontal lifting beam; 13. Limit protection mechanism B; 14. Main hook; 15. Mounting plate; 16. Limit block; 17. Track; 18. Support plate; 19. Limit plate; 20. Elastic part; 21. Touch sensor. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present invention and are for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction.

[0018] Please refer to the instruction manual Figure 1-5 , the present invention provides a technical solution: Embodiment 1, a novel metallurgical trolley, comprising a double-beam bridge frame 3, and a main trolley 1 installed on the double-beam bridge frame 3, the main trolley 1 comprising a car body 5, a main lifting mechanism 4, a wire rope 10, a horizontal hanging beam 12 and a main hook 14, the main lifting mechanism 4 is provided on the upper part of the car body 5, and the two ends of the lower part of the car body 5 are provided with a walking mechanism 7 that cooperates with the double-beam bridge frame 3, and a horizontal hanging beam 12 perpendicular to the traveling direction of the car body 5 is provided below the car body 5, and the two ends of the horizontal hanging beam 12 are lifted and lowered with the main lifting mechanism 4 through the wire rope 10, and the two ends of the lower part of the horizontal hanging beam 12 are provided with a main hook 14 for lifting the ladle, and the lower part of the car body 5 is provided with a walking mechanism 7 that cooperates with the double-beam bridge frame 3. A sub-frame 8 is arranged in the direction of travel, and a kangaroo cart 2 is arranged on the sub-frame 8, which can travel along the sub-frame 8 and shuttle to both sides of the vehicle body 5. Specifically, the sub-frame 8 includes a mounting plate 15, a support plate 18 and a track 17. The lower part of the vehicle body 5 is provided with two mounting plates 15 which are perpendicular to the vehicle body 5 and parallel to each other, and the lower sides of the opposite surfaces of the two mounting plates 15 are provided with support plates 18 which are perpendicular to the mounting plates 15. The upper surface of the support plate 18 is provided with a track 17 which matches the kangaroo cart 2. The lower part of the kangaroo cart 2 is provided with a sub-hook 11 which is connected to the lifting mechanism in the kangaroo cart 2 and is used for dumping the ladle; When the ladle is tipping, the two main hooks 14 at the bottom of the horizontal lifting beam 12 are used to hang and lift the main lifting ears on both sides of the ladle. Then, according to work requirements, the kangaroo cart 2 is driven to the left or right side of the main cart 1, and the auxiliary hook 11 is lowered and connected with the auxiliary lifting ears on the left or right side of the ladle. After the ladle is lifted to the designated position, the tipping operation of the ladle can be achieved by winding and lifting the auxiliary hook 11. During the winding and lifting process of the auxiliary hook 11, the kangaroo cart 2 can be moved to avoid oblique pulling and reduce safety hazards.

[0019] Embodiment 2: In order to ensure that the horizontal lifting beam 12 can always remain horizontal and stable during the process of lifting and dumping the ladle, the main lifting mechanism 4 is a double winding roller mechanism, and the main lifting mechanism 4 is fixedly connected to the two ends of the horizontal lifting beam 12 through two groups of steel wire ropes 10 respectively, and the sub-frame 8 at the lower part of the vehicle body 5 is located between the two groups of steel wire ropes 10. A balance beam 6 is also provided between the two groups of steel wire ropes 10 for maintaining the horizontal lifting beam 12 horizontal and stable. The adjacent sub-ropes of the two groups of steel wire ropes 10 are fixedly connected through the balance beam 6.

[0020] Embodiment three, since the kangaroo cart 2 is located at the lower part of the main cart 1, the driver's vision is easily affected when driving the kangaroo cart 2. In order to prevent the kangaroo cart 2 from accidentally derailing, limit blocks 16 are provided at both ends of the track 17 for limiting the kangaroo cart 2.

[0021] In the fourth embodiment, since the kangaroo car 2 needs to travel to both sides of the main car 1, the length of the auxiliary frame 8 must be greater than the length of the main car 1. This results in that when the main car 1 travels to the end of the double-beam bridge frame 3, the auxiliary frame 8 will collide with the end of the double-beam bridge frame 3 in advance. In order to avoid collision damage between the auxiliary frame 8 and the double-beam bridge frame 3, both ends of the auxiliary frame 8 in the direction of travel are provided with a limit protection mechanism A9 for preventing the auxiliary frame 8 from colliding with the double-beam bridge frame 3. Specifically, the limit protection mechanism A9 includes a limit plate 19, an elastic member 20 and a touch sensor 21. Both ends of the mounting plate 15 in the auxiliary frame 8 are provided with a limit plate 19. The limit plate 19 and the end surface of the mounting plate 15 are connected. They are elastically connected by an elastic member 20, which is an elastic telescopic rod or a spring. The end face of the mounting plate 15 is provided with a touch sensor 21 which is controllably connected to the traveling mechanism 7 in the main trolley 1. When the sub-frame 8 and the double-beam bridge frame 3 make a slight touch, the elasticity of the elastic member 20 and the protection of the limit plate 19 can be used to avoid wear on the end of the sub-frame 8. When there is excessive contact, as the elastic member 20 contracts, the limit plate 19 comes into contact with the touch sensor 21. After receiving the signal, the touch sensor 21 sends an emergency stop command to the traveling mechanism 7 of the main trolley 1. A warning light which is controllably connected to the touch sensor 21 can also be added in the cab to remind the driver.

[0022] Embodiment 5. Since the kangaroo cart 2 is located on the upper part of the horizontal beam 12, during the shuttle driving of the kangaroo cart 2, if the driver does not reel in and lift the auxiliary hook 11, the auxiliary hook 11 and the rope are very likely to collide with the horizontal beam 12, which poses a certain safety hazard. In order to avoid this problem, both sides of the horizontal beam 12 facing the travel direction of the main cart 1 are provided with a limit protection mechanism B13 which has the same structure as the limit protection mechanism A9 and is used to prevent the wire rope 10 or the auxiliary hook 11 from colliding and being damaged with the horizontal beam 12, wherein the limit plates 19 in the limit protection mechanism B13 are arranged on both sides of the horizontal beam 12, and the touch sensor 21 in the limit protection mechanism B13 is controlled and connected to the kangaroo cart 2.

[0023] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the above-mentioned embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. A novel metallurgical trolley, comprising a double-beam bridge frame (3), and a main trolley (1) mounted on the double-beam bridge frame (3), characterized in that: The main trolley (1) comprises a car body (5), a main lifting mechanism (4), a steel wire rope (10), a horizontal lifting beam (12) and a main lifting hook (14). The main lifting mechanism (4) is provided on the upper part of the car body (5). Both ends of the lower part of the car body (5) are provided with a traveling mechanism (7) that cooperates with the double-beam bridge frame (3). A horizontal lifting beam (12) perpendicular to the traveling direction of the car body (5) is provided below the car body (5). Both ends of the horizontal lifting beam (12) cooperate with the main lifting mechanism (4) for lifting and transporting a steel ladle through the steel wire rope (10). Both ends of the lower part of the horizontal lifting beam (12) are provided with a main lifting hook (14) for lifting a steel ladle. The lower part of the car body (5) is provided with a A sub-frame (8) is arranged in the direction of travel, and a kangaroo cart (2) is provided on the sub-frame (8) and can travel along the sub-frame (8) and shuttle to both sides of the vehicle body (5). The lower part of the kangaroo cart (2) is provided with a sub-hook (11) connected to a lifting mechanism in the kangaroo cart (2) and used for dumping the ladle.

2. A new type of metallurgical trolley according to claim 1, characterized in that: The main lifting mechanism (4) is a double winding roller mechanism, and the main lifting mechanism (4) is fixedly connected to two ends of the horizontal suspension beam (12) through two sets of steel wire ropes (10), and the auxiliary frame (8) at the bottom of the vehicle body (5) is located between the two sets of steel wire ropes (10).

3. A new type of metallurgical trolley according to claim 2, characterized in that: A balance beam (6) for maintaining the horizontal lifting beam (12) in a horizontal and stable manner is also provided between the two groups of steel wire ropes (10).

4. A new type of metallurgical trolley according to claim 1, characterized in that: The sub-frame (8) comprises a mounting plate (15), a support plate (18) and a track (17); the lower part of the vehicle body (5) is provided with two mounting plates (15) which are perpendicular to the vehicle body (5) and parallel to each other and are arranged correspondingly; the lower sides of the opposing surfaces of the two mounting plates (15) are provided with support plates (18) which are perpendicular to the mounting plates (15); and the upper surface of the support plates (18) is provided with a track (17) which matches the kangaroo car (2).

5. A new type of metallurgical trolley according to claim 4, characterized in that: Both ends of the track (17) are provided with limit blocks (16) for limiting the position of the kangaroo cart (2).

6. A new type of metallurgical trolley according to claim 4, characterized in that: Both ends of the auxiliary frame (8) in the direction of travel are provided with a limit protection mechanism A (9) for preventing the auxiliary frame (8) from colliding and being damaged with the double-beam bridge frame (3). The limit protection mechanism A (9) comprises a limit plate (19) and an elastic member (20). Both ends of the mounting plate (15) in the auxiliary frame (8) are provided with a limit plate (19). The limit plate (19) and the end surface of the mounting plate (15) are elastically connected via the elastic member (20).

7. A new type of metallurgical trolley according to claim 6, characterized in that: The position limiting protection mechanism A (9) further comprises a touch sensor (21) which is arranged on the end surface of the mounting plate (15) and is controllably connected to the traveling mechanism (7) in the main trolley (1).

8. A new type of metallurgical trolley according to claim 7, characterized in that: Both sides of the horizontal hanging beam (12) are provided with a limit protection mechanism B (13) having the same structure as the limit protection mechanism A (9) and used to prevent the steel wire rope (10) or the auxiliary hook (11) from colliding and being damaged with the horizontal hanging beam (12). The touch sensor (21) in the limit protection mechanism B (13) is control-connected to the kangaroo car (2).

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