Steel wire rope sling

Abstract

The present invention provides a wire rope sling, which relates to the technical field of mine slings. It includes a medium-thick plate and a lifting lug plate. There are two groups of both the medium-thick plate and the lifting lug plate, and the two groups of lifting lug plates are respectively installed on the outer sides of the two groups of medium-thick plates. The two groups of medium-thick plates are installed with each other, and through holes are provided at the middle positions of the inner sides of the two groups of medium-thick plates. The through holes are in an arc shape, and the two through holes form a circular groove for clamping the wire rope. There is a spacing between the two groups of medium-thick plates; both ends of the two groups of lifting lug plates are provided with connection holes, and a pin shaft is connected between the two connection holes at the same end. Nuts are provided on both sides of the pin shaft. The present invention is composed of two medium-thick plates and two lifting lug plates. The wire rope is clamped through the through holes, and the lifting tool is conveniently suspended through the pin shafts at both ends of the lifting lug plates. Only a single wire rope is adjusted, and it will not be affected by external forces and will not damage the outer layer of steel wires, providing a strong guarantee for the safe operation of the winch.

Description

Technical Field

[0001] The present invention relates to the technical field of mine slings, and particularly to a wire rope sling device. Background Art

[0002] With the continuous increase of the mining depth of mines, friction hoists have been widely used. Since the elongation of the hoisting wire rope increases continuously with the extension of the operation time, when the elongation exceeds the wire rope adjustment allowance of the hoisting container suspension device, rope threading operations are required. Especially for newly suspended wire ropes, rope threading is generally required after about 1 month of use. The rope threading work of friction hoists is an important work to ensure the safe operation of hoists, and rope threading operations need to be carried out multiple times within the service life of the wire rope. The rope threading process is complex, with high labor intensity and high safety risks. Specifically, the following problems exist:

[0003] 1. The traditional rope threading process flow of friction hoists is relatively complex. To prevent the wire rope from falling into the shaft, two sets of plate clamps are used to lock and connect 4 wire ropes together to form a whole during rope threading, and then the adjustment of each wire rope is completed one by one;

[0004] 2. The weight of one set of plate clamps is 102 kg, and 4 people are required to work together to complete the installation. The installation and removal take a long time, are difficult and inefficient. Due to the large weight, there is a risk of falling into the shaft during construction;

[0005] 3. During rope threading, lifting tools need to be suspended above the auxiliary rope and the rope adjustment oil cylinder. The plate clamp has no lifting holes and does not have a lifting function. Special lifting rigging needs to be installed above the wire rope to carry out rope threading operations, and the construction process is relatively complicated;

[0006] Therefore, the present invention proposes a wire rope sling device to solve the problems existing in the prior art. Summary of the Invention

[0007] In view of the above problems, the present invention proposes a wire rope sling device. This wire rope sling device only adjusts a single wire rope, is not affected by external forces, and does not damage the outer layer of wires, providing a strong guarantee for the safe operation of the winch.

[0008] To achieve the purpose of the present invention, the present invention is realized through the following technical solutions: A wire rope sling device, including a medium-thick plate and a lifting lug plate. There are two sets of both the medium-thick plate and the lifting lug plate, and the two sets of lifting lug plates are respectively installed on the outer sides of the two sets of medium-thick plates. The two sets of medium-thick plates are installed with each other, and through holes are provided at the middle positions inside the two sets of medium-thick plates. The through holes are in an arc shape, and the two through holes form a circular groove for clamping the wire rope. There is a spacing between the two sets of medium-thick plates;

[0009] Both ends of the two groups of the lug plates are provided with connecting holes, and a pin shaft is connected between the two groups of connecting holes at the same end. Nuts are arranged on both sides of the pin shaft, and the nuts are used to fix the pin shaft and the connecting holes.

[0010] A further improvement lies in that: first mounting holes are arranged at the four corners of the two groups of the medium-thick plates, and a first locking screw is connected between the first mounting holes at the upper ends of the two groups of the medium-thick plates.

[0011] A further improvement lies in that: second mounting holes are arranged at both ends of the middle positions inside the two groups of the lug plates, and a second locking screw is connected between the second mounting holes of the two groups of the lug plates and the first mounting holes at the lower ends of the two groups of the medium-thick plates.

[0012] A further improvement lies in that: notches are arranged at both ends of the top of the lug plate, and the notches are used for installing the first locking screw.

[0013] A further improvement lies in that: welding ribs are connected between the two ends of the medium-thick plate and the lug plate, and both sides of the welding rib are respectively welded and fixed to the medium-thick plate and the lug plate.

[0014] A further improvement lies in that: both the medium-thick plate and the lug plate are made of steel plates, and the thickness of the medium-thick plate is greater than the thickness of the lug plate.

[0015] A further improvement lies in that: an inner groove is arranged inside the medium-thick plate, fixed shafts are respectively arranged at both ends inside the inner groove, support arms are arranged on both groups of the fixed shafts, a ferrule is arranged on the support arm, and both groups of the support arms are respectively rotatably installed on the two groups of the fixed shafts through the ferrules.

[0016] A further improvement lies in that: the inner ends of both groups of the support arms are hinged with extrusion sheets, a rubber block is arranged on one side of the extrusion sheet, a through groove is arranged inside the through hole, and the through groove is used for the rubber block to extend out. A spring is arranged at the outer end of one side of the support arm.

[0017] A further improvement lies in that: pressing buttons are respectively arranged at both ends inside the medium-thick plate in a movable manner, and the pressing buttons penetrate through to the inside of the inner groove. The pressing buttons are used for extruding the support arms. A limiting sheet is arranged inside the pressing buttons, and the diameter of the limiting sheet is larger than the diameter of the penetration part of the pressing buttons and the medium-thick plate.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The present invention is composed of two medium-thick plates and two lug plates. The wire rope is clamped through the through hole. The hoisting tool is conveniently suspended through the pin shafts at both ends of the lug plate. Only a single wire rope is adjusted, and it will not be affected by external forces, and the outer layer of the wire will not be damaged, providing a strong guarantee for the safe operation of the winch.

[0020] 2. The present invention locks the medium - thick plate and the lifting lug plate through the first locking screw and the second locking screw, ensuring that the locking force is greater than the tensile force. The pin shaft on the lifting lug plate is fixedly installed through a nut, which is convenient for installation and removal, meets the construction safety requirements, and greatly improves the construction efficiency.

[0021] 3. The medium - thick plate and the lifting lug plate of the present invention are both made of steel plates. Only by adjusting a single wire rope, it has the characteristics of light weight, small volume, and multiple functions, and is simple to manufacture and convenient to use.

[0022] 4. When the present invention clamps the wire rope, the two groups of medium - thick plates approach each other, squeezing the push button, so that the push button squeezes one end of the support arm, causing the support arm to rotate around the fulcrum of the fixed shaft, and thus the extrusion plate extends the rubber block out of the through - slot, increasing the friction force on the wire rope and making the fixation more firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the front view of the present invention;

[0024] Figure 2 is the top view of the present invention;

[0025] Figure 3 is the schematic diagram of the lifting lug plate of the present invention;

[0026] Figure 4 is the schematic diagram of the medium - thick plate of the present invention;

[0027] Figure 5 is the internal schematic diagram of the inner groove of the present invention;

[0028] Figure 6 is the schematic diagram of the support arm and the extrusion piece of the present invention.

[0029] Wherein: 1. Medium - thick plate; 2. Lifting lug plate; 3. Through - hole; 4. Spacing; 5. Connecting hole; 6. Pin shaft; 7. Nut; 8. First mounting hole; 9. First locking screw; 10. Second mounting hole; 11. Second locking screw; 12. Notch; 13. Welding rib; 14. Inner groove; 15. Fixed shaft; 16. Support arm; 17. Ferrule; 18. Extrusion piece; 19. Rubber block; 20. Through - slot; 21. Spring; 22. Push button; 23. Limiting piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In order to deepen the understanding of the present invention, the following will further elaborate on the present invention in combination with embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0031] Embodiment 1

[0032] According to Figure 1 、 2As shown in Figures 3 and 4, in this embodiment, a wire rope sling is proposed, which includes a medium-thick plate 1 and a lug plate 2. There are two groups of both the medium-thick plate 1 and the lug plate 2. And the two groups of lug plates 2 are respectively installed on the outer sides of the two groups of medium-thick plates 1. The two groups of medium-thick plates 1 are installed with each other. And through holes 3 are provided at the middle positions inside the two groups of medium-thick plates 1. The through holes 3 are in an arc shape, and the two groups of through holes 3 form a circular groove for clamping the wire rope. There is a spacing 4 between the two groups of medium-thick plates 1;

[0033] At both ends inside the two groups of lug plates 2, connection holes 5 are provided. And a pin shaft 6 is connected between the two connection holes 5 at the same end. Nuts 7 are provided on both sides of the pin shaft 6, and the nuts 7 are used to fix the pin shaft 6 and the connection holes 5.

[0034] The wire rope sling is made by cutting, drilling, and welding a 16mm lug plate 2 and a 40mm medium-thick plate 1. The diameter of the wire rope locked by the sling is φ = 50mm. To ensure sufficient locking margin, two 40mm medium-thick plates 1 are used with a 20mm steel plate sandwiched in the middle. After clamping, align it, drill a 50mm through hole 3, and then take out the 20mm steel plate to form a spacing 4; when locking, it not only ensures a 20mm locking margin but also ensures a perfect fit with the wire rope. The arc surface diameter of the through hole 3 of the sling is 50mm, ensuring reliable contact with the hoisting wire rope (static friction ≥ 1.0). The lug plate 2 is made by cutting, drilling, and welding a 16mm steel plate. Cooperating with the pin shaft 6, it can hang a variety of lifting tools, which is convenient and fast. The overall weight is about 10 kilograms, only 1 / 5 of the plate clip. Two people can install and remove it. In the traditional wire rope threading time, it is more than 8 hours, while using the quick wire rope clamping device, the wire rope threading can be controlled within 4 hours, and the wire rope threading efficiency is doubled, winning precious production time for the mine. In the traditional technology, when using a long plate for wire rope threading operation, due to the uneven tension of the 4 wire ropes, the plate clip will also be deformed by external forces, and in severe cases, the outer layer of the wire will be damaged. This product only adjusts a single wire rope, will not be affected by external forces, and will not damage the outer layer of the wire, providing a strong guarantee for the safe operation of the winch.

[0035] At the four corners inside each of the two medium - thick plates 1, first mounting holes 8 are provided, and a first locking screw 9 is connected between the first mounting holes 8 at the upper ends inside the two medium - thick plates 1. At both ends of the middle position inside each of the two lifting lug plates 2, second mounting holes 10 are provided, and a second locking screw 11 is connected between the second mounting holes 10 of the two lifting lug plates 2 and the first mounting holes 8 at the lower ends inside the two medium - thick plates 1. At both ends of the top of the lifting lug plate 2, notches 12 are provided, and the notches 12 are used for installing the first locking screw 9. The present invention is locked by the first locking screw 9 and the second locking screw 11 to ensure that the locking force is greater than the tensile force. The pin on the lifting lug plate is fixedly installed by a nut, which is convenient for installation and removal and meets the construction safety requirements. After verification, two people can install and remove it. The traditional rope threading time is more than 8 hours, while the rope threading using the present invention can be controlled within 4 hours, doubling the rope threading efficiency and winning valuable production time for the mine.

[0036] Welding ribs 13 are connected between both ends of the medium - thick plate 1 and the lifting lug plate 2, and both sides of the welding rib 13 are welded and fixed to the medium - thick plate 1 and the lifting lug plate 2 respectively, making the welding of the medium - thick plate 1 and the lifting lug plate 2 more firm.

[0037] Both the medium - thick plate 1 and the lifting lug plate 2 are made of steel plates, and the thickness of the medium - thick plate 1 is greater than that of the lifting lug plate 2. Both the medium - thick plate 1 and the lifting lug plate 2 are made of steel plates. Only a single steel wire rope is adjusted, which has the characteristics of light weight, small volume, and multiple functions. After actual use, the weight is about 10 kg, only 1 / 5 of the plate clip, is simple to manufacture, convenient to use, and has strong popularization.

[0038] Embodiment 2

[0039] According to Figure 1 、 2 As shown in Figures 3, 4, 5, and 6, this embodiment provides a wire rope sling, which includes a medium - thick plate 1 and a lifting lug plate 2. There are two sets of both the medium - thick plate 1 and the lifting lug plate 2, and the two sets of lifting lug plates 2 are respectively installed on the outer sides of the two sets of medium - thick plates 1. The two sets of medium - thick plates 1 are installed with each other, and through - holes 3 are provided at the middle positions inside the two sets of medium - thick plates 1. The through - holes 3 are in an arc shape, and the two sets of through - holes 3 form a circular groove for clamping the wire rope. A spacing 4 is provided between the two sets of medium - thick plates 1;

[0040] At both ends inside each of the two sets of lifting lug plates 2, connection holes 5 are provided, and a pin 6 is connected between the two sets of connection holes 5 at the same end. Nuts 7 are provided on both sides of the pin 6, and the nuts 7 are used to fix the pin 6 and the connection holes 5.

[0041] The wire rope sling is made of 16mm lifting lug plate 2 and 40mm medium-thick plate 1 by cutting, drilling and welding. The wire rope locked by the sling has a diameter of φ = 50mm. To ensure sufficient locking margin, two 40mm medium-thick plates 1 are used to sandwich a 20mm steel plate. After clamping and aligning, a 50mm through-hole 3 is drilled, and then the 20mm steel plate is removed to form a spacing 4. When locking, both the 20mm locking margin and the perfect fit with the wire rope are guaranteed. The arc diameter of the sling through-hole 3 is 50mm, ensuring reliable contact with the lifting wire rope (static friction ≥ 1.0). The lifting lug plate 2 is cut, drilled and welded from 16mm steel plate. After the production is completed, it can be used to hang a variety of lifting tools in conjunction with the pin 6. It is convenient and fast. The overall weight is about 10 kilograms, which is only 1 / 5 of the plate card. Two people can install and remove it. The traditional rope-pushing time is more than 8 hours, while the use of a quick rope clamp can control the rope-pushing within 4 hours. The rope-pushing efficiency is doubled, which wins valuable production time for the mine. In traditional technology, when using a long board for rope-pushing operations, due to the uneven tension of the four steel ropes, the plate card will also be deformed by external forces, and in severe cases, the outer steel wire will be damaged. This product only adjusts a single steel wire rope, will not receive external forces, will not damage the outer steel wire, and provides a strong guarantee for the safe operation of the winch.

[0042] The medium plate 1 is provided with an inner groove 14, with fixed shafts 15 fixed at both ends. Two sets of fixed shafts 15 are each provided with a support arm 16, each equipped with a collar 17. The two sets of support arms 16 are rotatably mounted to the two sets of fixed shafts 15 via the collars 17. An extrusion piece 18 is hingedly connected to the inner ends of the two sets of support arms 16, with a rubber block 19 positioned on one side of the extrusion piece 18. A through-groove 20 is provided inside the through-hole 3, allowing the rubber block 19 to extend through the groove 20. A spring 21 is positioned on the outer end of one side of the support arm 16. Push buttons 22 are movably provided at both ends of the inner side of the medium plate 1, extending through the inner groove 14. These push buttons 22 are used to squeeze the support arms 16. A stopper 23 is positioned inside the push button 22, and the diameter of the stopper 23 is larger than the diameter of the point where the push button 22 intersects the medium plate 1. When clamping the wire rope, the two groups of medium and thick plates 1 approach each other, squeezing the push button 22, so that the push button 22 squeezes one end of the support arm 16, causing the support arm 16 to rotate about the fulcrum of the fixed shaft 15, thereby causing the squeezing plate 18 to extend the rubber block 19 out of the through groove 20, increasing the friction force on the wire rope and fixing it more firmly. After loosening the clamp, the support arm 16 and the squeezing plate 18 are reset by the action of the spring 21.

[0043] The wire rope sling is designed according to the wire rope threading process. It consists of two medium-thick plates 1 and two ear plates 2. The wire rope is clamped through the through hole 3, and the sling can be conveniently suspended through the pin shafts 6 at both ends of the ear plate 2. When using a traditional long plate for wire rope threading operations, due to uneven tension forces on the 4 wire ropes, the plate clamp will also be deformed by external forces, and in severe cases, the outer layer of the wire will be damaged. Therefore, this sling only adjusts a single wire rope, will not be affected by external forces, and will not damage the outer layer of the wire, providing a strong guarantee for the safe operation of the winch. Moreover, in this invention, the first locking screw 9 and the second locking screw 11 are used to lock the medium-thick plate 1 and the ear plate 2, ensuring that the locking force is greater than the tensile force. The pin shaft on the ear plate is fixedly installed through a nut, which is convenient for installation and removal and meets the construction safety requirements. After verification, two people can install and remove it. The traditional wire rope threading time is more than 8 hours, while using this invention, the wire rope threading can be controlled within 4 hours, doubling the wire rope threading efficiency and winning precious production time for the mine. At the same time, the medium-thick plate 1 and the ear plate 2 of this invention are both made of steel plates. It only adjusts a single wire rope and has the characteristics of light weight, small volume, and multiple functions. After actual use, the weight is about 10 kg, only 1 / 5 of the plate clamp. It is simple to manufacture, convenient to use, and has strong popularization. Finally, when this invention clamps the wire rope, the two groups of medium-thick plates 1 approach each other, squeezing the push button 22, causing the push button 22 to squeeze one end of the support arm 16, making the support arm 16 rotate around the fulcrum of the fixed shaft 15, so that the pressing plate 18 extends the rubber block 19 out of the through groove 20, increasing the friction force on the wire rope and fixing it more firmly.

[0044] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Steel wire rope sling, comprising a medium-thick plate (1) and a lifting lug plate (2), characterized in that: There are two sets of the medium-thick plates (1) and the lug plates (2), and the two sets of the lug plates (2) are respectively installed on the outer sides of the two sets of the medium-thick plates (1). The two sets of the medium-thick plates (1) are installed with each other, and through holes (3) are arranged at the middle positions inside the two sets of the medium-thick plates (1). The through holes (3) are in an arc shape, and the two sets of the through holes (3) form a circular groove for clamping a steel wire rope. A spacing (4) is provided between the two sets of the medium-thick plates (1); At both ends inside the two sets of the lug plates (2), connection holes (5) are provided, and a pin shaft (6) is connected between the two connection holes (5) at the same end. Nuts (7) are arranged on both sides of the pin shaft (6), and the nuts (7) are used to fix the pin shaft (6) and the connection holes (5); An inner groove (14) is arranged inside the medium-thick plate (1), and fixed shafts (15) are fixedly arranged at both ends inside the inner groove (14). Support arms (16) are arranged on both sets of the fixed shafts (15), and a ferrule (17) is arranged on the support arms (16). The two sets of the support arms (16) are respectively rotatably installed on the two sets of the fixed shafts (15) through the ferrules (17); The inner ends of the two sets of the support arms (16) are hinged with extrusion sheets (18), and a rubber block (19) is arranged on one side of the extrusion sheet (18). A through groove (20) is arranged inside the through hole (3), and the through groove (20) is used for the rubber block (19) to extend out. A spring (21) is arranged at the outer end of one side of the support arm (16); Press buttons (22) are movably arranged at both ends inside the medium-thick plate (1), and the press buttons (22) penetrate into the inner groove (14) inside. The press buttons (22) are used to extrude the support arms (16). A limiting sheet (23) is arranged inside the press buttons (22), and the diameter of the limiting sheet (23) is larger than the diameter of the penetration part of the press button (22) and the medium-thick plate (1).

2. The wire rope sling device according to claim 1, characterized in that: First mounting holes (8) are arranged at the four corners inside the two sets of the medium-thick plates (1), and a first locking screw (9) is connected between the first mounting holes (8) at the upper ends inside the two sets of the medium-thick plates (1).

3. The wire rope sling device according to claim 2, characterized in that: Second mounting holes (10) are arranged at both ends at the middle positions inside the two sets of the lug plates (2), and a second locking screw (11) is connected between the second mounting holes (10) of the two sets of the lug plates (2) and the first mounting holes (8) at the lower ends inside the two sets of the medium-thick plates (1).

4. The wire rope sling device according to claim 3, characterized in that: Notches (12) are arranged at both ends at the top of the lug plate (2), and the notches (12) are used for the installation of the first locking screw (9).

5. The wire rope sling device according to claim 1, characterized in that: Welding ribs (13) are connected between both ends of the medium-thick plate (1) and the lug plate (2), and both sides of the welding rib (13) are respectively welded and fixed to the medium-thick plate (1) and the lug plate (2).

6. The wire rope sling device according to claim 5, wherein: Both the medium-thick plate (1) and the lug plate (2) are made of steel plates, and the thickness of the medium-thick plate (1) is greater than the thickness of the lug plate (2).

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