Mine hoisting anti-overwinding steel wire rope connecting device

Abstract

The invention discloses an anti-overwinding steel wire rope connecting device for mine hoisting, which belongs to the technical field of mine equipment and comprises a winch, a pulley block is arranged on the lower side of the winch, a hook is arranged at the lower end of the pulley block, the pulley block is connected with the winch through a steel wire rope, and an upper protection plate is arranged at the lower end of the winch. By arranging the alarm assembly, when a steel wire rope is overwound, the lower protection plate slides upwards on the connecting shaft, the limiting protection shaft drives the fixing cylinder to move upwards, and a top plate at the upper end of a sliding rod in the fixing cylinder makes contact with a trigger switch, a sliding plate and the sliding rod slide into the fixing cylinder; when the steel wire rope is overwound, the spring is compressed, the top plate abuts against the trigger switch through elasticity of the spring, the buzzer gives an alarm to prompt workers that the steel wire rope is overwound, the device can give an alarm to prompt the workers that the steel wire rope is overwound by arranging the alarm assembly, and the practicability of the device is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mine equipment, and particularly relates to a wire rope connection device for preventing overwinding in mine hoisting. Background Art

[0002] A mine that is mined underground. Sometimes, inclined shafts, vertical shafts, adits, etc. in the underground development of the mine are also called mine shafts.

[0003] Chinese Patent Application No. 2022227132771 discloses a protection device for preventing overwinding of a hoisting rope of a hoisting machine, which includes a winch, a wire rope, and a pulley block. An upper protection plate is fixedly connected to the outside of the winch. Second connecting blocks and a connecting shaft are symmetrically installed at one end of the upper protection plate away from the winch. The connecting shaft is slidably connected to a lower protection plate. First connecting blocks are symmetrically installed on the outside of the lower protection plate. In the present invention, when in use, after the limit switch of the depth indicator fails, the second limit protection shaft pushes the third connecting rod to move. During the upward movement of the third connecting rod, the two second connecting rods rotate and tend to be horizontal, and the first connecting rod rotates and tends to be vertical accordingly. When the second connecting rod is horizontal and the first connecting rod is vertical, a dead point is formed, and at this time, a self-locking phenomenon occurs. At this time, the limit protection plate can stop the pulley block to prevent the pulley block from overwinding and prevent accidents from occurring.

[0004] The above-mentioned disclosed patent does not have an alarm function. The original device can only lock the winch through the upper protection plate and the lower protection plate, etc., and cannot alarm to prompt the staff that the wire rope has overwound. At the same time, the original device cannot guide and protect the wire rope, and when the wire rope shakes, the wire rope is easily worn between the wire rope and the lower protection plate. Summary of the Invention

[0005] To solve the problems raised in the above background art, the present invention provides a wire rope connection device for preventing overwinding in mine hoisting, which has the characteristics of an alarm function and can prompt the staff that the wire rope has overwound.

[0006] To achieve the above object, the present invention provides the following technical solution: A wire rope connection device for preventing overwinding in mine hoisting, including a winch, a pulley block is arranged below the winch, a hook is arranged at the lower end of the pulley block, the pulley block and the winch are connected by a wire rope, an upper protection plate is arranged at the lower end of the winch, connecting shafts are arranged on both sides of the lower end of the upper protection plate, a lower protection plate is arranged below the upper protection plate, a limit protection shaft is arranged at the middle position of the lower protection plate, a limit protection plate is arranged at the lower end of the limit protection shaft, first connecting rods are rotatably connected to the upper sides of both ends of the limit protection shaft, second connecting rods are rotatably connected between the first connecting rod and the upper protection plate and between the first connecting rod and the lower protection plate, and an alarm component is arranged at the upper end of the limit protection shaft.

[0007] Preferably, the alarm component includes a fixed cylinder, a buzzer, a trigger switch, a slide plate, a spring, a slide rod and a top plate. Among them, a fixed cylinder is provided at the upper end of the limit protection shaft. A slide plate is arranged inside the fixed cylinder. A spring is arranged at the lower end of the slide plate. A slide rod is arranged at the upper end of the slide plate. A top plate is arranged at the upper end of the slide rod. A buzzer is arranged at the upper end of the upper protection plate. A trigger switch is arranged at the position corresponding to the top plate at the lower end of the upper protection plate.

[0008] Preferably, a rubber convex is arranged at the upper end of the top plate, and the rubber convex is bonded to the top plate through glue.

[0009] Preferably, the side of the slide plate is closely attached to the inner wall of the fixed cylinder. A slide hole corresponding to the slide rod is arranged at the upper end of the fixed cylinder. The fixed cylinder and the first connecting rod are staggered from each other.

[0010] Preferably, fixing frames are arranged on both sides of the lower protection plate. The fixing frames and the lower protection plate are connected by cross bars. Roller shafts are arranged on both sides inside the fixing frames. The roller shafts and the fixing frames are connected by pin shafts.

[0011] Preferably, two lower plates are arranged on one side of the lower end of the fixing frame. A fixing rod is arranged between the two lower plates. A slider is arranged at the position corresponding to the steel wire rope on the surface of the fixing rod. A folding rod is arranged at the lower end of the slider. The other end of the folding rod is provided with a fixing ring.

[0012] Preferably, the width of the gap formed between the two roller shafts is greater than the diameter width of the steel wire rope. The cross bar and the lower protection plate as well as the cross bar and the fixing frame are welded by spot welding.

[0013] Preferably, the fixing ring, the folding rod and the slider are of a welded integral structure. The vertical section of the fixing rod is square. A slide hole corresponding to the fixing rod is arranged in the slider.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. By setting an alarm component in the present invention, when the steel wire rope has an overwinding situation, when the lower protection plate slides upward on the connecting shaft, the limit protection shaft drives the fixed cylinder to move upward. When the top plate at the upper end of the slide rod inside the fixed cylinder touches the trigger switch, the slide plate and the slide rod slide into the fixed cylinder, and the spring is compressed. The elasticity of the spring is used to make the top plate press tightly against the trigger switch, and the buzzer gives an alarm to prompt the staff that the steel wire rope has an overwinding situation. By setting the alarm component, the device can give an alarm to prompt the staff that the steel wire rope has an overwinding situation, improving the practicability of the device.

[0016] 2. The present invention sets fixing frames at both ends of the lower protection plate, and connects roller shafts on both sides inside the fixing frames through pin shafts. The two roller shafts can rotate in the fixing frames through the pin shafts, and the two roller shafts can limit the steel wire rope, avoiding wear between the steel wire rope and the lower protection plate when the steel wire rope shakes. Setting the fixing frames and roller shafts can guide and protect the steel wire rope, and improve the service life of the steel wire rope.

[0017] 3. The present invention sets rubber protrusions at the upper end of the top plate, which can play a buffering role when the top plate contacts the trigger switch. When the winch winds and unwinds the steel wire rope, the steel wire rope can drive the slider to slide on the fixed rod through the fixing ring and the folding rod. Setting the fixing ring can play a secondary limiting and guiding role for the steel wire rope, and improve the guiding and protecting effect on the steel wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of the present invention;

[0019] Figure 2 is a bottom perspective view of the present invention;

[0020] Figure 3 is a perspective view of the alarm component of the present invention;

[0021] Figure 4 is a sectional perspective view of the fixed cylinder of the present invention;

[0022] Figure 5 is the present invention Figure 2 enlarged view of part A;

[0023] In the figure: 1. Winch; 2. Upper protection plate; 3. Alarm component; 31. Fixed cylinder; 32. Buzzer; 33. Trigger switch; 34. Slide plate; 35. Spring; 36. Slide rod; 37. Top plate; 38. Rubber protrusion; 4. Lower protection plate; 5. Steel wire rope; 6. Hook; 7. Pulley block; 8. Limit protection plate; 9. Fixing frame; 10. Connecting shaft; 11. Limit protection shaft; 12. First connecting rod; 13. Second connecting rod; 14. Cross bar; 15. Roller shaft; 16. Pin shaft; 17. Lower plate; 18. Fixed rod; 19. Slider; 20. Folding rod; 21. Fixing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1

[0026] Please refer toFigures 1-5 , the present invention provides the following technical solution: A wire rope connection device for preventing overwinding in mine hoisting, including a winch 1, a pulley block 7 is arranged below the winch 1, a hook 6 is arranged at the lower end of the pulley block 7, the pulley block 7 is connected to the winch 1 through a wire rope 5, an upper protection plate 2 is arranged at the lower end of the winch 1, connecting shafts 10 are arranged on both sides of the lower end of the upper protection plate 2, a lower protection plate 4 is arranged below the upper protection plate 2, a limit protection shaft 11 is arranged at the middle position of the lower protection plate 4, a limit protection plate 8 is arranged at the lower end of the limit protection shaft 11, the upper sides of both ends of the limit protection shaft 11 are rotatably connected with first connecting rods 12, and second connecting rods 13 are rotatably connected between the first connecting rods 12 and the upper protection plate 2 and between the first connecting rods 12 and the lower protection plate 4, and an alarm component 3 is arranged at the upper end of the limit protection shaft 11.

[0027] Specifically, the alarm component 3 includes a fixed cylinder 31, a buzzer 32, a trigger switch 33, a slide plate 34, a spring 35, a slide rod 36 and a top plate 37. Among them, a fixed cylinder 31 is arranged at the upper end of the limit protection shaft 11, a slide plate 34 is arranged inside the fixed cylinder 31, a spring 35 is arranged at the lower end of the slide plate 34, a slide rod 36 is arranged at the upper end of the slide plate 34, a top plate 37 is arranged at the upper end of the slide rod 36, a buzzer 32 is arranged at the upper end of the upper protection plate 2, and a trigger switch 33 is arranged at the position corresponding to the top plate 37 at the lower end of the upper protection plate 2.

[0028] By adopting the above technical solution, when the wire rope 5 has an overwinding situation and the lower protection plate 4 slides upward on the connecting shaft 10, the limit protection shaft 11 drives the fixed cylinder 31 to move upward. When the top plate 37 at the upper end of the slide rod 36 inside the fixed cylinder 31 touches the trigger switch 33, the slide plate 36 and the slide rod 34 slide into the fixed cylinder 31, and the spring 35 is compressed. The elasticity of the spring 35 is used to make the top plate 37 press tightly against the trigger switch 33, and the buzzer 32 gives an alarm to prompt the staff that the wire rope 5 has an overwinding situation. By setting the alarm component 3, the device can give an alarm to prompt the staff that the wire rope 5 has an overwinding situation, improving the practicability of the device.

[0029] Specifically, a rubber convex 38 is arranged at the upper end of the top plate 37, and the rubber convex 38 is adhesively bonded to the top plate 37 through glue.

[0030] By adopting the above technical solution, by arranging the rubber convex 38 at the upper end of the top plate 37, it can play a buffering role when the top plate 37 touches the trigger switch 33.

[0031] Specifically, the side of the slide plate 34 is closely attached to the inner wall of the fixed cylinder 31, a slide hole corresponding to the slide rod 36 is arranged at the upper end of the fixed cylinder 31, and the fixed cylinder 31 and the first connecting rod 12 are staggered from each other.

[0032] By adopting the above technical solution, the skateboard 34 slides more stably in the fixed cylinder 31. The slide bar 36 can slide in the fixed cylinder 31, and the fixed cylinder 31 and the first connecting rod 12 are staggered from each other to prevent the first connecting rod 12 from rotating and hitting the fixed cylinder 31.

[0033] When this embodiment is in use, when the wire rope 5 connection device for preventing overwinding in mine hoisting is in use, the device is installed at a suitable position. When the wire rope 5 experiences overwinding, the pulley block 7 moves upward and contacts the limit protection plate 8. The limit protection plate 8 pushes the limit protection shaft 11 upward, and the first connecting rod 12 and the second connecting rod 13 move. The lower protection plate 4 slides on the connecting shaft 10 as the first connecting rod 12 and the second connecting rod 13 rotate. When the first connecting rod 12 and the second connecting rod 13 are perpendicular, a dead point is formed, thereby locking the pulley block 7 and preventing the winch 1 from winding the wire rope 5, preventing the pulley block 7 from overwinding. By setting the alarm component 3, when the wire rope 5 experiences overwinding and the lower protection plate 4 slides upward on the connecting shaft 10, the limit protection shaft 11 drives the fixed cylinder 31 upward. When the top plate 37 at the upper end of the slide bar 36 inside the fixed cylinder 31 contacts the trigger switch 33, the skateboard 36 and the slide bar 34 slide into the fixed cylinder 31, and the spring 35 is compressed. Using the elasticity of the spring 35, the top plate 37 presses tightly against the trigger switch 33, and the buzzer 32 alarms to prompt the staff that the wire rope 5 has experienced overwinding. By setting the alarm component 3, the device can issue an alarm to prompt the staff that the wire rope 5 has experienced overwinding, improving the practicability of the device. By setting the rubber convex 38 at the upper end of the top plate 37, it can play a buffering role when the top plate 37 contacts the trigger switch 33.

[0034] Embodiment 2

[0035] The difference between this embodiment and Embodiment 1 is that fixed frames 9 are provided on both sides of the lower protection plate 4. The fixed frames 9 and the lower protection plate 4 are connected by cross bars 14, and roller shafts 15 are provided on both sides inside the fixed frames 9. The roller shafts 15 and the fixed frames 9 are connected by pin shafts 16.

[0036] By adopting the above technical solution, by providing fixed frames 9 at both ends of the lower protection plate 4 and connecting roller shafts 15 on both sides inside the fixed frames 9 through pin shafts 16, the two roller shafts 15 can rotate in the fixed frames 9 through the pin shafts 16. The two roller shafts 15 can play a limiting role on the wire rope 5, avoiding wear between the wire rope 5 and the lower protection plate 4 when the wire rope 5 shakes. Setting the fixed frames 9 and the roller shafts 15 can guide and protect the wire rope 5 and improve the service life of the wire rope 5.

[0037] Specifically, two lower plates 17 are provided on one side of the lower end of the fixed frame 9. A fixing rod 18 is arranged between the two lower plates 17. A slider 19 is arranged at a position on the surface of the fixing rod 18 corresponding to the wire rope 5. A folding rod 20 is arranged at the lower end of the slider 19, and a fixing ring 21 is arranged at the other end of the folding rod 20.

[0038] By adopting the above technical solution, when the winch 1 winds and unwinds the wire rope 5, the wire rope 5 can drive the slider 19 to slide on the fixing rod 18 through the fixing ring 21 and the folding rod 20. The setting of the fixing ring 21 can play a secondary limiting and guiding role for the wire rope 5, improving the guiding and protecting effect on the wire rope 5.

[0039] Specifically, the width of the gap formed between the two roller shafts 15 is greater than the diameter width of the wire rope 5. Both between the cross bar 14 and the lower protection plate 4 and between the cross bar 14 and the fixed frame 9 are welded by spot welding.

[0040] By adopting the above technical solution, the wire rope 5 can move between the two roller shafts 15, and the spot welding makes the connection between the cross bar 14 and the lower protection plate 4 and between the cross bar 14 and the fixed frame 9 more firm.

[0041] Specifically, the fixing ring 21, the folding rod 20 and the slider 19 are of a welded integral structure. The vertical section of the fixing rod 18 is set as a square, and a sliding hole corresponding to the fixing rod 18 is arranged in the slider 19.

[0042] By adopting the above technical solution, the welded integral structure of the fixing ring 21, the folding rod 20 and the slider 19 is more firm and durable. The slider 19 can slide on the fixing rod 18, preventing the slider 19 from rotating on the fixing rod 18.

[0043] When this embodiment is in use, by arranging the fixed frames 9 at both ends of the lower protection plate 4 and connecting the roller shafts 15 to the two sides inside the fixed frames 9 through the pin shafts 16, the two roller shafts 15 can rotate in the fixed frames 9 through the pin shafts 16. The two roller shafts 15 can play a limiting role for the wire rope 5, preventing wear between the wire rope 5 and the lower protection plate 4 when the wire rope 5 shakes. The arrangement of the fixed frames 9 and the roller shafts 15 can guide and protect the wire rope 5, increasing the service life of the wire rope 5. When the winch 1 winds and unwinds the wire rope 5, the wire rope 5 can drive the slider 19 to slide on the fixing rod 18 through the fixing ring 21 and the folding rod 20. The setting of the fixing ring 21 can play a secondary limiting and guiding role for the wire rope 5, improving the guiding and protecting effect on the wire rope 5.

[0044] The buzzer 32 in the present invention is an existing publicly disclosed technology, and the selected model is AD16-22SM.

[0045] In the present invention, the structures and working principles of the winch 1, the upper protection plate 2, the lower protection plate 4, the wire rope 5, the hook 6, the pulley block 7, the limit protection plate 8, the connecting shaft 10, the limit protection shaft 11, the first connecting rod 12, and the second connecting rod 13 have been disclosed in a lifting machinery hoisting rope anti-overwinding protection device disclosed in Chinese Patent Application No. 2022227132771. Its working principle is that when the wire rope 5 undergoes an overwinding situation, the pulley block 7 moves upward to contact the limit protection plate 8, and the limit protection plate 8 pushes the limit protection shaft 11 upward. The first connecting rod 12 and the second connecting rod 13 move. The lower protection plate 4 slides on the connecting shaft 10 as the first connecting rod 12 and the second connecting rod 13 rotate. When the first connecting rod 12 and the second connecting rod 13 are perpendicular, a dead point is formed, thereby locking the pulley block 7 and preventing the winch 1 from winding the wire rope 5, and preventing the pulley block 7 from overwinding.

[0046] Working principle and usage process of the present invention: When the wire rope 5 connection device for preventing overwinding in mine hoisting is in use, the device is installed at a suitable position. When the wire rope 5 undergoes overwinding, the pulley block 7 moves upward and contacts the limit protection plate 8. The limit protection plate 8 pushes the limit protection shaft 11 upward, and the first connecting rod 12 and the second connecting rod 13 move. The lower protection plate 4 slides on the connecting shaft 10 as the first connecting rod 12 and the second connecting rod 13 rotate. When the first connecting rod 12 and the second connecting rod 13 are perpendicular, a dead point is formed, thereby locking the pulley block 7, making it impossible for the winch 1 to wind the wire rope 5, preventing the pulley block 7 from overwinding. By setting the alarm component 3, when the wire rope 5 undergoes overwinding and the lower protection plate 4 slides upward on the connecting shaft 10, the limit protection shaft 11 drives the fixed cylinder 31 upward. When the top plate 37 at the upper end of the slide bar 36 inside the fixed cylinder 31 contacts the trigger switch 33, the slide plate 36 and the slide bar 34 slide into the fixed cylinder 31, and the spring 35 is compressed. Using the elasticity of the spring 35, the top plate 37 presses tightly against the trigger switch 33, and the buzzer 32 alarms to prompt the staff that the wire rope 5 has undergone overwinding. By setting the alarm component 3, the device can emit an alarm to prompt the staff that the wire rope 5 has undergone overwinding, improving the practicality of the device. By setting the rubber convex 38 at the upper end of the top plate 37, it can play a buffering role when the top plate 37 contacts the trigger switch 33. By setting the fixed frames 9 at both ends of the lower protection plate 4 and connecting the roller shafts 15 to both sides inside the fixed frames 9 through the pin shafts 16, the two roller shafts 15 can rotate in the fixed frames 9 through the pin shafts 16, and the two roller shafts 15 can play a limiting role on the wire rope 5, avoiding wear between the wire rope 5 and the lower protection plate 4 when the wire rope 5 shakes. Setting the fixed frames 9 and the roller shafts 15 can guide and protect the wire rope 5, improving the service life of the wire rope 5. When the winch 1 winds and unwinds the wire rope 5, the wire rope 5 can drive the slider 19 to slide on the fixed rod 18 through the fixed ring 21 and the folding rod 20. Setting the fixed ring 21 can play a secondary limiting and guiding role on the wire rope 5, improving the guiding and protecting effect on the wire rope 5.

[0047] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire rope connection device for preventing overwinding in mine hoisting, comprising a winch, characterized in that: A pulley block is provided at the lower side of the winch, a hook is provided at the lower end of the pulley block, the pulley block and the winch are connected by a steel wire rope, an upper protective plate is provided at the lower end of the winch, connecting shafts are provided at both sides of the lower end of the upper protective plate, a lower protective plate is provided at the lower side of the upper protective plate, a limited protection shaft is provided at the middle position of the lower protective plate, a limited protection plate is provided at the lower end of the limited protection shaft, a first connecting rod is rotatably connected to the upper side of both ends of the limited protection shaft, a second connecting rod is rotatably connected between the first connecting rod and the upper protective plate and between the first connecting rod and the lower protective plate, and an alarm component is provided at the upper end of the limited protection shaft.

2. A wire rope connection device for preventing overwinding in mine hoisting according to claim 1, characterized in that: The alarm component includes a fixed cylinder, a buzzer, a trigger switch, a slide plate, a spring, a sliding rod and a top plate, wherein a fixed cylinder is arranged at the upper end of the limit protection shaft, a slide plate is arranged inside the fixed cylinder, a spring is arranged at the lower end of the slide plate, a sliding rod is arranged at the upper end of the slide plate, a top plate is arranged at the upper end of the sliding rod, a buzzer is arranged at the upper end of the upper protection plate, and a trigger switch is arranged at a position at the lower end of the upper protection plate corresponding to the top plate.

3. A wire rope connection device for preventing overwinding in mine hoisting according to claim 2, characterized in that: The upper end of the top plate is provided with a rubber convexity, and the rubber convexity is bonded to the top plate by glue.

4. A wire rope connection device for preventing overwinding in mine hoisting according to claim 2, characterized in that: The side edge of the slide plate is in close contact with the inner wall of the fixing tube, a sliding hole corresponding to the sliding rod is arranged at the upper end of the fixing tube, and the fixing tube and the first connecting rod are staggered with each other.

5. The wire rope connection device for preventing overwinding in mine hoisting according to claim 1 is characterized in that: Fixed frames are arranged on both sides of the lower protection plate, the fixed frames are connected to the lower protection plate through a cross bar, roller shafts are arranged on both sides inside the fixed frames, and the roller shafts are connected to the fixed frames through a pin shaft.

6. A wire rope connection device for preventing overwinding in mine hoisting according to claim 5, characterized in that: Two lower plates are arranged on one side of the lower end of the fixing frame, a fixing rod is arranged between the two lower plates, a sliding block is arranged on the surface of the fixing rod corresponding to the steel wire rope, a folding rod is arranged at the lower end of the sliding block, and a fixing ring is arranged at the other end of the folding rod.

7. A wire rope connection device for preventing overwinding in mine hoisting according to claim 5, characterized in that: The width of the gap formed between the two rollers is larger than the diameter width of the steel wire rope, and the cross bar and the lower protection plate as well as the cross bar and the fixed frame are spot welded.

8. A wire rope connection device for preventing overwinding in mine hoisting according to claim 6, characterized in that: The fixing ring, the folding rod and the sliding block are welded into an integrated structure. The vertical section of the fixing rod is arranged in a square shape, and a sliding hole corresponding to the fixing rod is arranged in the sliding block.

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