Dismounting and mounting device for safety pin of crane plate blank clamp hook head

Abstract

The utility model discloses a crane slab clamp hook head safety pin dismounting and mounting device, which belongs to the technical field of steel production, and comprises a hoisting clamp and a dismounting and mounting rod, the hoisting clamp comprises a clamping block, two hoisting hook heads, two hoisting supports, two safety pins and two anti-falling chains, the two hoisting supports are respectively fixed on the top of the clamping block, and the two safety pins are fixed on the clamping block. A fixing rod is fixedly arranged on the side wall of the hoisting support, one end of the anti-falling chain is fixedly connected with the side wall of the safety pin, the other end of the anti-falling chain is fixedly connected with the side wall of the hoisting support, the dismounting rod comprises a semicircular pipe, a metal rod and a traction hook, the semicircular pipe is fixedly arranged at one end of the metal rod, and the traction hook is arranged at the other end of the metal rod. The metal rod is designed to be hollow, and a driving mechanism used for driving the traction hook is arranged in the metal rod. Through the use of the device, a worker can stand on the ground to disassemble and assemble the slab clamp safety pin, and it is guaranteed that the replacement operation is conducted safely, rapidly and effectively.

Description

Technical Field

[0001] This utility model belongs to the field of steel production technology, and in particular relates to a device for disassembling and assembling the safety pin of the slab clamp on a crane. Background Technology

[0002] Overhead cranes and slab clamps are crucial pieces of equipment in modern steel industry production, playing a vital role in reducing labor intensity and improving production efficiency. Changing and disassembling the overhead crane slab clamps is a critical step in the production and transfer of continuously cast slabs. Producing and transferring slabs of different sizes and specifications requires disassembling and assembling the clamp safety pins and straightening the overhead crane hook.

[0003] Traditional slab clamp safety pin removal and installation operations require personnel to climb onto the slab clamps for work at height. Furthermore, the crane hook head weighs several hundred kilograms, and there is a safety hazard when manually straightening the hook head. Therefore, safety accidents may occur during the replacement operation, and manually straightening the hook head will also affect work efficiency.

[0004] To address this issue, we propose a device for removing and installing safety pins on the hooks of a crane slab clamp. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the prior art by proposing a device for disassembling and assembling the safety pin of the crane slab clamp hook.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A device for disassembling and assembling safety pins on a crane slab clamp includes a lifting clamp and a disassembly / assembly rod. The lifting clamp includes a clamping block, two lifting hooks, two lifting brackets, two safety pins, and two fall arrest chains. The two lifting brackets are respectively fixed to the top of the clamping block. A fixing rod is fixedly installed on the side wall of each lifting bracket. The lifting hooks hook onto the fixing rods. A safety groove is opened on the side wall of each lifting bracket, and the safety pins are inserted into the safety grooves. One end of each fall arrest chain is fixedly connected to the side wall of the safety pins, and the other end is fixedly connected to the side wall of the lifting brackets. The disassembly / assembly rod includes a semi-circular tube, a metal rod, and a traction hook. The semi-circular tube is fixedly installed at one end of the metal rod, and the traction hook is installed at the other end of the metal rod. The metal rod is hollow and contains a drive mechanism for driving the traction hook.

[0008] Preferably, one end of the safety groove is open, and the length of the safety groove is greater than the diameter of the safety pin.

[0009] Preferably, the inner diameter of the semicircular tube is the same as the diameter of the safety pin, and the length of the semicircular tube is three-quarters the length of the safety pin.

[0010] Preferably, a rotating rod is fixedly provided at the end of the traction hook facing the metal rod, and the rotating rod passes through the side wall of the metal rod.

[0011] Preferably, the driving mechanism includes a push block, an inclined rod, a lifting sleeve, and a driving rod. The push block is disposed on the side wall of the metal rod. The inclined rod is rotatably connected to the push block at one end inside the metal rod, and the other end of the inclined rod is rotatably connected to the side wall of the lifting sleeve. The driving rod is fixedly disposed on the inner wall of the lifting sleeve. The lifting sleeve is sleeved on the outside of the rotating rod. The side wall of the rotating rod is provided with a rotating groove, and the driving rod is slidably connected to the inner wall of the rotating groove.

[0012] Preferably, a fixing ring is fixedly provided on the inner wall of the metal rod, the rotating rod is rotatably connected to the inner wall of the fixing ring, a telescopic spring is fixedly provided on the top of the fixing ring, and the other end of the telescopic spring is fixedly connected to the bottom wall of the lifting sleeve.

[0013] In summary, the technical effects and advantages of this utility model are as follows:

[0014] By using the disassembly and assembly device described in this application, operators can avoid climbing onto the slab clamps to manually disassemble and assemble the safety pins, allowing them to operate from the ground. This ensures the replacement operation is safe, fast, and efficient, and also avoids safety hazards such as falls from heights, lifting injuries, and mechanical injuries, effectively protecting employee safety and preventing accidents during the replacement process. Furthermore, it improves work efficiency, and the device is inexpensive and easy to promote. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the lifting clamp in this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the disassembly rod in this utility model;

[0017] Figure 3 This is a schematic diagram of the drive mechanism in this utility model;

[0018] Figure 4 This is a schematic diagram of the structural connection between the lifting sleeve and the rotating rod in this utility model;

[0019] Figure 5 for Figure 4 A magnified view of part A in the middle.

[0020] In the diagram: 1. Clamping block; 2. Lifting hook; 3. Lifting bracket; 4. Safety pin; 5. Anti-fall chain; 6. Fixing rod; 7. Safety groove; 8. Semi-circular tube; 9. Metal rod; 10. Traction hook; 11. Rotating rod; 12. Press block; 13. Inclined rod; 14. Lifting sleeve; 15. Drive rod; 16. Rotating groove; 17. Fixing ring; 18. Telescopic spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] like Figure 1 - Figure 5 As shown, a safety pin removal and installation device for a crane slab clamp hook includes a lifting clamp and a removal and installation rod. The lifting clamp includes a clamping block 1, two lifting hooks 2, two lifting brackets 3, two safety pins 4, and two fall arresting chains 5. The two lifting brackets 3 are respectively fixed to the top of the clamping block 1. A fixing rod 6 is fixedly installed on the side wall of the lifting bracket 3. The lifting hooks 2 are hooked onto the fixing rod 6. A safety groove 7 is opened on the side wall of the lifting bracket 3. The safety pins 4 are inserted into the safety groove 7. One end of the safety groove 7 is open. The length of the safety groove 7 is greater than the diameter of the safety pin 4. In the natural state, the safety pin 4 cannot be disengaged from the safety groove 7. At the same time, the length of the safety groove 7 also allows the safety pin 4 to move within it.

[0023] One end of the fall arrestor chain 5 is fixedly connected to the side wall of the safety pin 4, and the other end is fixedly connected to the side wall of the hoisting bracket 3. The disassembly rod includes a semi-circular tube 8, a metal rod 9, and a traction hook 10. The semi-circular tube 8 is fixedly installed at one end of the metal rod 9. The inner diameter of the semi-circular tube 8 is the same as the diameter of the safety pin 4. The length of the semi-circular tube 8 is three-quarters the length of the safety pin 4. Workers can use the semi-circular tube 8 to remove the safety pin 4 or place it into the safety groove 7.

[0024] The towing hook 10 is located at the other end of the metal rod 9, from... Figure 2 As can be seen, the traction hook 10 is "S" shaped, the metal rod 9 is hollow, and a rotating rod 11 is fixedly installed on the end of the traction hook 10 facing the metal rod 9. The rotating rod 11 passes through the side wall of the metal rod 9. The outer diameter of the rotating rod 11 is smaller than the inner diameter of the metal rod 9 and the lifting sleeve 14, so the rotating rod 11 can rotate normally in the metal rod 9.

[0025] The metal rod 9 is equipped with a drive mechanism for driving the traction hook 10. The drive mechanism includes a push block 12, an inclined rod 13, a lifting sleeve 14, and a drive rod 15. The push block 12 is located on the side wall of the metal rod 9. The inclined rod 13 is rotatably connected to the push block 12 at one end inside the metal rod 9. The other end of the inclined rod 13 is rotatably connected to the side wall of the lifting sleeve 14. The drive rod 15 is fixedly installed on the inner wall of the lifting sleeve 14. The lifting sleeve 14 is sleeved on the outside of the rotating rod 11. The side wall of the rotating rod 11 has a rotating groove 16. The drive rod 15 is slidably connected to the inner wall of the rotating groove 16. The two ends of the rotating groove 16 are located on both sides of the rotating rod 11 and are on the same straight line. Therefore, when the drive rod 15 moves from one end of the rotating groove 16 to the other end, it can ensure that the rotating rod 11 drives the traction hook 10 to rotate to the other end.

[0026] A fixing ring 17 is fixedly installed on the inner wall of the metal rod 9. The rotating rod 11 is rotatably connected to the inner wall of the fixing ring 17. A telescopic spring 18 is fixedly installed on the top of the fixing ring 17. The other end of the telescopic spring 18 is fixedly connected to the bottom wall of the lifting sleeve 14. The force applied by the telescopic spring 18 to the lifting sleeve 14 will ensure that the lifting sleeve 14 is always at the highest point of the movement. At this time, the button 12 will extend a part of the metal rod 9, which is convenient for the staff to press.

[0027] The working principle is as follows: At the continuous casting slab production site, after the production of 220mm thick slabs is completed, the production of 260mm thick slabs is switched to another group. A special clamp for lifting 260mm thick slabs needs to be replaced. The operator, standing on the ground, uses this device to push out and remove the safety pin 4 from the safety groove 7 of the 220mm clamp. The overhead crane starts and disengages the two hooks from the lifting lugs of the 220mm clamp. The overhead crane then moves to the 260mm clamp, using the "S"-shaped traction hook 10 at the bottom of the metal rod 9 to assist the two hooks in hooking the lifting lugs of the 260mm clamp. The operator, standing on the ground, uses this device to lift the slab clamp safety pin 4 and insert it into the safety groove 7 of the clamp lifting lug. The overhead crane starts and lifts the 260mm clamp off the ground to begin lifting the 260mm thick slab.

[0028] When it is necessary to change the direction of the traction hook 10, the button 12 can be pressed, causing the tilting rod 13 to drive the lifting sleeve 14 to descend, thereby compressing the telescopic spring 18. At the same time, the drive rod 15 on the inner wall of the lifting sleeve 14 will slide in the rotating groove 16, thereby causing the rotating rod 11 to drive the traction hook 10 to rotate 180°, thus achieving the effect of changing the direction of the traction hook 10.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for dismounting the safety pin of the hook of a travelling board clamp, comprising a lifting clamp and a dismounting rod, characterized in that, The lifting clamp comprises a clamping block (1), two lifting hook heads (2), two lifting supports (3), two safety pins (4) and two anti-falling chains (5), the two lifting supports (3) are fixed on the top of the clamping block (1) respectively, the side wall of the lifting support (3) is fixedly provided with a fixing rod (6), the lifting hook head (2) is hooked on the fixing rod (6), the side wall of the lifting support (3) is provided with a safety groove (7), the safety pin (4) is inserted into the safety groove (7), one end of the anti-falling chain (5) is fixedly connected with the side wall of the safety pin (4), and the other end is fixedly connected with the side wall of the lifting support (3).

2. A device for dismounting a safety pin (4) of a trolley board blank holder according to claim 1, characterized in that One end of the safety groove (7) is open, and the length of the safety groove (7) is greater than the diameter of the safety pin (4).

3. A device for dismounting a safety pin (4) of a trolley board blank holder according to claim 1, characterized in that, The inner diameter of the semicircular pipe (8) is consistent with the diameter of the safety pin (4), and the length of the semicircular pipe (8) is three-fourths of the length of the safety pin (4).

4. A device for dismounting a safety pin (4) of a trolley board blank holder according to claim 1, characterized in that, The end of the traction hook (10) facing the metal rod (9) is fixedly provided with a rotating rod (11), and the rotating rod (11) penetrates through the side wall of the metal rod (9).

5. A device for dismounting a safety pin (4) of a trolley board blank holder according to claim 4, characterized in that, The driving mechanism comprises a pressing block (12), an inclined rod (13), a lifting sleeve (14) and a driving rod (15), the pressing block (12) is arranged on the side wall of the metal rod (9), the inclined rod (13) is rotatably connected with the pressing block (12) at one end inside the metal rod (9), the other end of the inclined rod (13) is rotatably connected with the side wall of the lifting sleeve (14), the driving rod (15) is fixedly arranged on the inner wall of the lifting sleeve (14), the lifting sleeve (14) is sleeved outside the rotating rod (11), the side wall of the rotating rod (11) is provided with a rotating groove (16), and the driving rod (15) is slidably connected with the inner wall of the rotating groove (16).

6. A device for dismounting a safety pin (4) of a trolley board blank holder according to claim 5, characterized in that, The inner wall of the metal rod (9) is fixedly provided with a fixed ring (17), the rotating rod (11) is rotatably connected with the inner wall of the fixed ring (17), the top of the fixed ring (17) is fixedly provided with an extension spring (18), and the other end of the extension spring (18) is fixedly connected with the bottom wall of the lifting sleeve (14).

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