Crown block guard device in metallurgical industry

Abstract

The utility model relates to the field of crown blocks, and discloses a metallurgical industry crown block guard device which comprises two groups of vehicle bodies, a cross frame is fixedly connected between the two groups of vehicle bodies, the outer wall of the cross frame is slidably connected with a cross vehicle, the bottom of the cross vehicle is fixedly connected with an extension disc, and the top of the extension disc is fixedly connected with a motor. The output end of the motor is fixedly connected with a rope disc, and the rope disc is connected with a hanging ring through a cable. According to the utility model, by arranging the extension disc, the motor, the rope disc, the cable, the supporting frame, the guide groove and the hanging ring, when collision of a bottom hoisted object is avoided, the vehicle body is driven to move through the traveling wheels, then the bottom hoisted object is driven to move along with the traveling wheels, and when the object is about to collide, the vehicle body is driven to stop through the remote control sudden stop traveling wheels. And meanwhile, the motors with opposite moving directions are controlled to rotate and wind the cable through an emergency stop program, reverse tension is provided for hoisting articles, and the articles are prevented from moving forwards due to inertia.

Description

Technical Field

[0001] This utility model relates to the field of overhead cranes, and in particular to an overhead crane guardian device for the metallurgical industry. Background Technology

[0002] Overhead cranes (also known as bridge cranes) are indispensable equipment on production lines in the metallurgical industry. They are responsible for lifting and transporting various heavy materials, such as steel billets, steel ingots, and scrap steel. However, due to the special nature of the metallurgical environment, such as high temperature, high dust, and strong electromagnetic interference, the operation of overhead cranes poses certain safety hazards. In order to ensure production safety and reduce the risk of accidents, overhead crane protection devices have emerged.

[0003] In the current metallurgical industry, overhead cranes typically use steel wire ropes to hoist items, which are then moved and lifted by manual support.

[0004] Then, since existing overhead cranes usually use a single steel wire rope for hoisting, when the crane stops suddenly at the moment of collision, the object will tilt forward due to inertia, causing the operator to be dragged forward along with the object. It is impossible to prevent the object from tilting forward at the moment of emergency stop, which may cause injury to the operator. Therefore, an overhead crane guard device for the metallurgical industry is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a crane guard device for the metallurgical industry, which aims to improve the problem that the existing technology cannot prevent items from tilting forward during emergency stops.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a crane guard device for the metallurgical industry, comprising a car body, wherein two sets of car bodies are provided, and a cross frame is fixedly connected between the two sets of car bodies. A horizontal carriage is slidably connected to the outer wall of the cross frame. An extension plate is fixedly connected to the bottom of the horizontal carriage. A motor is fixedly connected to the top of the extension plate. A rope reel is fixedly connected to the output end of the motor. A lifting ring is connected to the rope reel via a cable. A support frame is fixedly connected to the top of the extension plate. A guide groove is provided on the top of the extension plate.

[0007] As a further description of the above technical solution:

[0008] The motor is provided in four groups, and the four groups of motors are distributed circumferentially on the top of the extension disk with the extension disk as the center.

[0009] As a further description of the above technical solution:

[0010] The end of the rope reel is rotatably connected to the inner wall of the support frame.

[0011] As a further description of the above technical solution:

[0012] The cable is wound around the outer wall of the rope reel, and the end of the cable is fixedly connected to the top of the lifting ring.

[0013] As a further description of the above technical solution:

[0014] The guide groove is provided in four sets, and the cable passes through the four sets of guide grooves respectively.

[0015] As a further description of the above technical solution:

[0016] Both sets of vehicle bodies are equipped with driving wheels at the bottom, and the driving wheels are symmetrically distributed about the central axis of the cross frame.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, by setting up an extension disc, motor, rope disc, cable, support frame, guide groove, and lifting ring, in order to avoid the bottom hoisted item from impacting, the vehicle body is moved by the traveling wheels, and then the bottom hoisted item is moved by the vehicle body. Then, when the item is about to collide, the traveling wheels are stopped by remote control, and at the same time, the motor in the opposite direction of movement is controlled by the emergency stop program to rotate and rewind the cable, providing a reverse pulling force for the hoisted item, preventing the item from moving forward due to inertia, and achieving the effect of protecting the hoisted item from collision.

[0019] 2. In this utility model, by setting up an extension disc, motor, rope disc, cable, support frame, guide groove, and lifting ring, the four sets of cables are used to lift the item in an inverted cone shape during the lifting process, providing multi-directional traction force to the item, reducing the swaying amplitude of the item, and avoiding large-scale swaying that could cause injury to the operator. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the cross frame of the overhead crane guard device for the metallurgical industry proposed in this utility model.

[0021] Figure 2 This is a three-dimensional schematic diagram of the motor distribution of the overhead crane guard device for the metallurgical industry proposed in this utility model.

[0022] Figure 3 This is a three-dimensional schematic diagram showing the disassembled rope reel of the overhead crane guard device for the metallurgical industry proposed in this utility model.

[0023] Figure 4 This is a three-dimensional schematic diagram of the guide groove of the overhead crane guard device for the metallurgical industry proposed in this utility model.

[0024] Legend:

[0025] 1. Car body; 2. Car wheels; 3. Cross frame; 4. Cross carriage; 5. Extension disc; 6. Motor; 7. Rope reel; 8. Cable; 9. Support frame; 10. Guide groove; 11. Lifting ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1-3 This utility model provides an embodiment of a crane guard device for the metallurgical industry, comprising a car body 1, which is provided in two sets. A crossbeam 3 is fixedly connected between the two sets of car bodies 1. The crossbeam 3 is used to provide lateral distance for hoisting and its length can be changed according to actual needs. Both sets of car bodies 1 are provided with a traveling wheel 2 at their bottom. The traveling wheel 2 is provided with six wheels on one side for engaging specific travel rails to maintain the stable movement of the car body 1. The traveling wheels 2 are symmetrically distributed around the central axis of the crossbeam 3. A horizontal carriage 4 is slidably connected to the outer wall of the crossbeam 3. A pulley is provided at the top of the inner wall of the horizontal carriage 4 for driving the horizontal carriage 4 to move laterally via remote control, thereby driving the lifting ring 11 to hoist items at the lateral distance. An extension plate 5 is fixedly connected to the bottom of the horizontal carriage 4. The extension plate 5 is used to provide support points for four sets of motors 6 and rope reels 7, and serves as the hoisting center point, making it convenient for operators to observe the hoisting position from a distance. A motor 6 is fixedly connected to the top of the extension plate 5. There are four sets of motors 6, which are existing technologies and will not be described in detail. They are used to drive the rope reels 7 to rotate and retract the cable 8.

[0028] Reference Figures 2-4 The motor 6 has four sets, and the four sets of motors 6 are distributed circumferentially around the extension disc 5 on its top. The output end of the motor 6 is fixedly connected to a rope disc 7. The rope disc 7 is existing technology and is used to wind the cable 8 to provide sufficient cable 8 for the hoisting height. The rope disc 7 is connected to a lifting ring 11 through the cable 8. The lifting ring 11 is existing technology and will not be described in detail. It is used to connect the item to the lifting ring 11 by suspending a cloth strap or other lifting strap. The end of the rope disc 7 is rotatably connected to the inner wall of the support frame 9. The cable 8 is wound around the outer wall of the rope disc 7, and the end of the cable 8 is fixedly connected to The cable 8 is a standard steel wire rope attached to the top of the lifting ring 11. The ends of the four sets of cables 8 are inclined and located at the horizontal center of the extension disc 5, forming an inverted cone shape. A support frame 9 is fixedly connected to the top of the extension disc 5. The support frame 9 is used to protect the cable 8 from dust and to provide a rotation support point for the rope disc 7. A guide groove 10 is provided on the top of the extension disc 5. The guide groove 10 is set to pass through the extension disc 5. The contact surface between the guide groove 10 and the cable 8 is an arc surface, which extends the service life of the cable 8. There are four sets of guide grooves 10, and the cable 8 passes through the four sets of guide grooves 10 respectively.

[0029] Working principle: When hoisting an item, the traveling wheel 2 is remotely controlled to rotate, which in turn moves the vehicle body 1. The vehicle body 1 then moves the crossbeam 3, which in turn moves the crossbeam 4. The crossbeam 4 then moves the extension tray 5, which in turn moves the hoisted item at the bottom. When the item is about to collide with other items, the traveling wheel 2 is remotely controlled to stop, and the vehicle body 1 stops following the direction of the stopping of the traveling wheel 2. At the same time, the corresponding emergency stop program controls the motor 6, which is moving in the opposite direction, to rotate in the opposite direction to rewind the cable 8. It should be noted that the emergency stop program here is controlled by a PLC, which is existing technology well known to those skilled in the art, so it will not be described in detail. The rewinding of the cable 8 provides a reverse pulling force to the hoisted item, preventing the item from tilting forward due to inertia, thus protecting the hoisted item from collision and improving the safety of hoisting.

[0030] During the hoisting process, the traveling wheels 2 are remotely controlled to rotate, which in turn moves the vehicle body 1. The vehicle body 1 then moves the crossbeam 3, which in turn moves the crossbeam 4. The crossbeam 4 then moves the extension plate 5, which in turn moves the four sets of cables 8 and lifting rings 11. The ends of the four sets of cables 8 are tilted and positioned at the horizontal center of the extension plate 5, forming an inverted cone shape to hoist the item. This provides multi-directional traction to the item, reducing its sway and preventing significant injury to operators from large swaying of the hoisted item. This greatly improves the safety of the hoisting process and reduces the occurrence of accidents.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A crane guard device for the metallurgical industry, comprising a crane body (1), characterized in that: The vehicle body (1) is provided with two sets, and a cross frame (3) is fixedly connected between the two sets of vehicle bodies (1). A cross carriage (4) is slidably connected to the outer wall of the cross frame (3). An extension plate (5) is fixedly connected to the bottom of the cross carriage (4). A motor (6) is fixedly connected to the top of the extension plate (5). A rope reel (7) is fixedly connected to the output end of the motor (6). A hanging ring (11) is connected to the rope reel (7) through a cable (8). A support frame (9) is fixedly connected to the top of the extension plate (5). The extension disc (5) has a guide groove (10) on its top; four sets of motors (6) are provided, and the four sets of motors (6) are distributed circumferentially around the extension disc (5) on its top; the end of the rope disc (7) is rotatably connected to the inner wall of the support frame (9); the cable (8) is wound around the outer wall of the rope disc (7), and the end of the cable (8) is fixedly connected to the top of the lifting ring (11); four sets of guide grooves (10) are provided, and the cable (8) passes through the four sets of guide grooves (10) respectively.

2. The overhead crane guard device for the metallurgical industry according to claim 1, characterized in that: Both sets of vehicle bodies (1) are equipped with driving wheels (2) at the bottom, and the driving wheels (2) are symmetrically distributed around the central axis of the cross frame (3).

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