Steel wire rope vibration suppression equipment and mine hoist thereof

Abstract

The utility model relates to the technical field of hoists, and discloses steel wire rope vibration suppression equipment and a mine hoist thereof. The swinging assembly comprises a connecting rod, a first swinging rod, a second swinging rod and a balancing weight, the connecting rod is fixedly connected with the hoop, the first swinging rod is rotationally connected with the connecting rod, the second swinging rod is rotationally connected with the first swinging rod, the balancing weight is fixedly connected with the second swinging rod, and the first swinging rod can drive the rotating shaft to rotate; the rotating shaft drives the paddle plate to stir liquid in the storage barrel cavity, resistance is provided for rotation of the rotating shaft through the liquid, then relative movement is restrained, the effect of restraining vibration is achieved, the plugging bolt is arranged, the threaded hole is plugged through the plugging bolt, the threaded hole facilitates liquid filling and supplementing, and the detachable end cover facilitates installation of the rotating shaft and the paddle plate. And meanwhile, the sealing performance of the storage barrel cavity is guaranteed, the probability of liquid overflowing is reduced, the overall structure is simple, the maintenance cost is low, and the vibration suppression effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of hoists, in particular to a wire rope vibration suppression device and a mine hoist thereof. Background Art

[0002] The main challenge to the safe and stable operation of mine hoists comes from vibration damage to the vertical wire rope, especially in deep mine environments. As the vertical wire rope grows significantly, a slight external disturbance can trigger violent vibration of the hoist's vertical wire rope, resulting in a sharp increase in the amplitude and frequency of the wire rope's dynamic load, affecting the life of the wire rope and the stability of transportation.

[0003] The prior art discloses a vibration suppression device for a vertical steel wire rope of a mine hoist and a mine hoist (publication number: CN118062693A), which includes a hoist container, and a plurality of vertical steel wire ropes are fixedly connected to the top of the hoist container. Each vertical steel wire rope is installed with at least two vibration suppression modules along the vertical direction, and the installation directions of two adjacent vibration suppression modules are perpendicular to each other.

[0004] In the existing technology, the vibration of the steel cable is offset by a swingable counterweight. The vibration suppression of the steel cable is highly dependent on the counterweight. The anti-vibration effect is limited by simply relying on the counterweight potential energy to offset. In the case of deep mines, the anti-seismic suppression effect of the end of the steel cable needs to be strengthened.

[0005] To this end, we propose a wire rope vibration suppression device and a mine hoist thereof. Utility Model Content

[0006] The utility model mainly solves the above-mentioned technical problem of limited effect of relying on counterweight to offset vibration, and provides a wire rope vibration suppression device and a mine hoist thereof.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a wire rope vibration suppression device and a mine hoist thereof, comprising:

[0008] The clamp is used to fix the two arc-shaped petal structures, and the two arc-shaped petal structures are locked closed by bolts;

[0009] A swing assembly is provided on the wall surface of the clamp for controlling vibration. The swing assembly includes a connecting rod, a first swing rod, a second swing rod, and a counterweight. The connecting rod is fixedly connected to the clamp, the first swing rod is rotatably connected to the connecting rod, the second swing rod is rotatably connected to the first swing rod, and the counterweight is fixedly connected to the second swing rod. The first swing rod and the second swing rod can swing in two different axial directions.

[0010] The damping structure is arranged on the side walls of the first swing rod and the second swing rod and has two groups. The two groups of damping structures respectively suppress the swing amplitudes of the first swing rod and the second swing rod.

[0011] As a preferred embodiment of the present invention, the first swing arm and the second swing arm are both rod structures, the first swing arm is rotatably connected to the front wall of the connecting rod, the second swing arm is rotatably connected to the side wall of the first swing arm, the counterweight block is fixedly installed at the bottom of the second swing arm, and two groups of swing assemblies are symmetrically arranged on the wall surface of the clamp.

[0012] As a preferred embodiment of the present invention, the damping structure includes a storage cylinder, an end cover, a rotating shaft, a paddle and a sealing bolt. The storage cylinder is fixedly connected to the connecting rod, the end cover is detachably connected to the storage cylinder, the rotating shaft is rotatably connected to the end cover and fixedly connected to the first swing rod, and a plurality of paddles are fixedly provided on the wall surface of the rotating shaft. The paddles can stir the liquid in the storage cylinder, and the sealing bolt is threadedly connected to the storage cylinder.

[0013] As a preferred embodiment of the present invention, the storage tube forms a cylindrical structure, the end cover is adapted to the storage tube and blocks and seals the opening of the storage tube, an axial hole adapted to the rotating shaft is opened at the end of the end cover, a sealing ring is provided in the axial hole, the rotating shaft passes through the end cover and extends into the storage tube cavity, a threaded hole is opened on the circumferential surface of the storage tube, and the sealing bolt is threadedly connected to the threaded hole.

[0014] As a preferred embodiment of the present invention, the damping structure further includes an extension plate and a tension spring, the paddle board is provided with a slide groove adapted to the extension plate, the extension plate and the tension spring are both located in the slide groove, and the extension plate is elastically connected to the paddle board.

[0015] As a preferred embodiment of the present invention, the extension plate and the paddle plate are both rectangular plate structures, the depth of the slide groove is less than the height of the paddle plate, the extension plate is adapted to the slide groove, and the extension plate is slidably arranged in the slide groove, one end of the tension spring is fixedly connected to the extension plate and the other end of the tension spring is fixedly connected to the inner bottom surface of the paddle plate.

[0016] A mine hoist comprises a frame on which a winch is fixedly mounted. A cable is wound around a winding roller of the winch. The cable is provided with all the above-mentioned wire rope vibration suppression devices near the end thereof, and the clamp is fixed on the cable.

[0017] The utility model provides a wire rope vibration suppression device and a mine hoist thereof.

[0018] Beneficial effects:

[0019] 1. A wire rope vibration suppression device and its mine hoist, when the first swing arm swings, the first swing arm will drive the rotating shaft to rotate, and the rotating shaft drives the paddle to stir the liquid in the storage cylinder cavity. The liquid takes a non-Newtonian liquid as an example. The liquid provides resistance to the rotation of the rotating shaft, thereby suppressing relative motion and achieving the effect of suppressing vibration. A sealing bolt is provided, and the threaded hole is sealed by the sealing bolt. The threaded hole is convenient for filling and replenishing liquid, and the detachable end cover is convenient for installing the rotating shaft and the paddle, while ensuring the sealing of the storage cylinder chamber and reducing the probability of liquid overflow. The overall structure is simple, the maintenance cost is low, and the vibration suppression effect is good.

[0020] 2. This wire rope vibration suppression device and its mine hoist, when the shaft rotates, the paddle plate moves in a synchronous circular motion with the shaft. Under the action of centrifugal force, the extension plate will slide in the slide groove and stretch the tension spring. Since there is a gap between the paddle plate and the inner wall of the storage cylinder, the cross-sectional area of ​​the agitated liquid is increased by protruding the paddle plate through the extension plate, thereby increasing the resistance of the liquid to the rotation of the shaft. When facing sudden acceleration and deceleration, the rotation of the shaft is suppressed by the physical properties of the non-Newtonian liquid, thereby suppressing the relative movement between the first swing rod and the connecting rod, which has a better vibration suppression effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is one of the overall three-dimensional diagrams of the utility model;

[0022] Figure 2 This is the second overall stereogram of the utility model;

[0023] Figure 3 This is the overall three-dimensional diagram of the damping structure of the utility model;

[0024] Figure 4 This is the assembly drawing of the damping structure of the utility model;

[0025] Figure 5 This is a partial cutaway view of the paddle board of the present invention.

[0026] Legend: 10. Clamp; 11. Connecting rod; 12. First swing arm; 13. Second swing arm; 14. Counterweight; 20. Storage cylinder; 21. End cover; 22. Rotating shaft; 23. Paddle; 24. Sealing bolt; 30. Extension plate; 31. Tension spring. DETAILED DESCRIPTION

[0027] A wire rope vibration suppression device and a mine hoist thereof, such as Figure 1 and Figure 2 Shown, including:

[0028] The clamp 10 is used to fix the two arc-shaped petal structures, and the two arc-shaped petal structures are locked closed by bolts;

[0029] like Figure 2 The first swing arm 12 and the second swing arm 13 are rotatably connected to each other, and the counterweight 14 is fixedly connected to the second swing arm 13. The first swing arm 12 and the second swing arm 13 are both rod structures. The first swing arm 12 is rotatably connected to the front wall of the connecting rod 11, and the second swing arm 13 is rotatably connected to the side wall of the first swing arm 12. The counterweight 14 is fixedly installed at the bottom of the second swing arm 13. Two groups of swing assemblies are symmetrically arranged on the wall of the clamp 10. The first swing arm 12 and the second swing arm 13 swing in the Z-axis and X-axis directions, and the swing of the first swing arm 12 and the second swing arm 13 is offset by the vibration, thereby achieving the purpose of suppressing vibration.

[0030] like Figure 2 、 Figure 3 and Figure 4 As shown, the damping structure is provided on the side walls of the first swing rod 12 and the second swing rod 13 and has two groups, and the two groups of damping structures respectively suppress the swing amplitude of the first swing rod 12 and the second swing rod 13;

[0031] The damping structure includes a storage cylinder 20, an end cover 21, a rotating shaft 22, a paddle 23 and a blocking bolt 24. The storage cylinder 20 is fixedly connected to the connecting rod 11, and the end cover 21 is detachably connected to the storage cylinder 20. The rotating shaft 22 is rotatably connected to the end cover 21 and is fixedly connected to the first swinging rod 12. A plurality of paddles 23 are fixedly provided on the wall surface of the rotating shaft 22. The paddles 23 can stir the liquid in the storage cylinder 20. The blocking bolt 24 is threadedly connected to the storage cylinder 20. The storage cylinder 20 forms a cylindrical structure. The end cover 21 is adapted to the storage cylinder 20 and blocks and seals the opening of the storage cylinder 20. An axial hole adapted to the rotating shaft 22 is provided at the end of the end cover 21, and a sealing ring is provided in the axial hole. The rotating shaft 22 extends through the end cover 21 into the cavity of the storage cylinder 20. The circumferential surface of the storage cylinder 20 is provided with a The threaded hole and the blocking bolt 24 are threadedly connected to the threaded hole. In this solution, taking the swing of the first swing arm 12 as an example, when the first swing arm 12 swings, the first swing arm 12 will drive the rotating shaft 22 to rotate, and drive the paddle 23 to stir the liquid in the cavity of the storage tube 20 through the rotating shaft 22. The liquid takes a non-Newtonian liquid as an example. The liquid provides resistance to the rotation of the rotating shaft 22, thereby suppressing relative motion and achieving the effect of suppressing vibration. A blocking bolt 24 is provided to block the threaded hole through the blocking bolt 24. The threaded hole is convenient for filling and replenishing liquid, and the detachable end cover 21 is convenient for installing the rotating shaft 22 and the paddle 23, while ensuring the sealing of the cavity of the storage tube 20 and reducing the probability of liquid overflow. The overall structure is simple, the maintenance cost is low, and the vibration suppression effect is good.

[0032] like Figure 5 As shown, the damping structure also includes an extension plate 30 and a tension spring 31. The paddle plate 23 is provided with a sliding groove adapted to the extension plate 30. The extension plate 30 and the tension spring 31 are both located in the sliding groove. The extension plate 30 is elastically connected to the paddle plate 23. The extension plate 30 and the paddle plate 23 are both rectangular plate structures. The depth of the sliding groove is less than the height of the paddle plate 23. The extension plate 30 is adapted to the sliding groove. The extension plate 30 is slidably arranged in the sliding groove. One end of the tension spring 31 is fixedly connected to the extension plate 30 and the other end of the tension spring 31 is fixedly connected to the inner bottom surface of the paddle plate 23. As a supplement to the above scheme, at the rotating shaft 2 During rotation, the paddle 23 moves in a synchronous circular motion with the rotating shaft 22. Under the action of centrifugal force, the extension plate 30 slides in the chute and stretches the tension spring 31. Since there is a gap between the paddle 23 and the inner wall of the storage cylinder 20, the extension plate 30 protrudes from the paddle 23 to increase the cross-sectional area of ​​the agitated liquid, thereby increasing the resistance of the liquid to the rotation of the rotating shaft 22. In the face of sudden acceleration and deceleration, the physical properties of the non-Newtonian liquid suppress the rotation of the rotating shaft 22, thereby suppressing the relative motion between the first swing arm 12 and the connecting rod 11, thereby achieving a better vibration suppression effect.

[0033] Not shown in the figure. A mine hoist comprises a frame with a winch fixedly mounted on the frame, a cable wound around the winch's reel, and the aforementioned wire rope vibration suppression device installed near the end of the cable. A clamp 10 is fixed to the cable. The installation of the aforementioned vibration suppression device reduces the likelihood of significant vibration of the cable during retraction and extension, thereby ensuring stable transportation and having a positive effect on the hoisting of ore.

[0034] The working principle of the present invention is as follows: taking the swing of the first swinging rod 12 as an example, when the first swinging rod 12 swings, the first swinging rod 12 will drive the rotating shaft 22 to rotate, and the rotating shaft 22 drives the paddle 23 to stir the liquid in the storage cylinder 20 cavity. The liquid is a non-Newtonian liquid. The liquid provides resistance to the rotation of the rotating shaft 22, thereby suppressing relative motion and achieving the effect of suppressing vibration. A blocking bolt 24 is provided, and the threaded hole is blocked by the blocking bolt 24. The threaded hole is convenient for filling and replenishing liquid. When the rotating shaft 22 rotates, the paddle 23 moves along with the rotating shaft 22. Synchronous circular motion, under the action of centrifugal force, the extension plate 30 will slide in the slide groove and stretch the tension spring 31. Since there is a gap between the paddle plate 23 and the inner wall of the storage cylinder 20, the cross-sectional area of ​​the agitated liquid is increased by protruding the paddle plate 23 through the extension plate 30, and the resistance of the liquid to the rotation of the rotating shaft 22 is increased. When facing sudden acceleration and deceleration, the rotation of the rotating shaft 22 is suppressed by the physical properties of the non-Newtonian liquid, thereby suppressing the relative motion between the first swing arm 12 and the connecting rod 11. The second swing arm 13 offsets the vibration in the other axial direction in the same way.

[0035] 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 to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A wire rope vibration suppression device, characterized in that: include: A hoop (10) is used to fix the two arc-shaped petal structures, and the two arc-shaped petal structures are locked closed by bolts; A swing assembly is arranged on the wall surface of the hoop (10) for controlling vibration, and the swing assembly comprises a connecting rod (11), a first swing rod (12), a second swing rod (13) and a counterweight (14); the connecting rod (11) is fixedly connected to the hoop (10); the first swing rod (12) is rotationally connected to the connecting rod (11); the second swing rod (13) is rotationally connected to the first swing rod (12); the counterweight (14) is fixedly connected to the second swing rod (13); and the first swing rod (12) and the second swing rod (13) can swing in two different axial directions; The damping structure is arranged on the side walls of the first swing rod (12) and the second swing rod (13) and has two groups. The two groups of damping structures respectively suppress the swing amplitude of the first swing rod (12) and the second swing rod (13).

2. The wire rope vibration suppression device according to claim 1, characterized in that: The first swing rod (12) and the second swing rod (13) are both rod structures. The first swing rod (12) is rotatably connected to the front wall of the connecting rod (11), and the second swing rod (13) is rotatably connected to the side wall of the first swing rod (12). The counterweight (14) is fixedly installed at the bottom of the second swing rod (13), and two groups of swing assemblies are symmetrically arranged on the wall surface of the clamp (10).

3. The wire rope vibration suppression device according to claim 1, characterized in that: The damping structure comprises a storage cylinder (20), an end cover (21), a rotating shaft (22), a paddle (23) and a blocking bolt (24); the storage cylinder (20) is fixedly connected to the connecting rod (11); the end cover (21) is detachably connected to the storage cylinder (20); the rotating shaft (22) is rotatably connected to the end cover (21) and is fixedly connected to the first swinging rod (12); a plurality of paddles (23) are fixedly provided on the wall surface of the rotating shaft (22); the paddles (23) can stir the liquid in the storage cylinder (20); and the blocking bolt (24) is threadedly connected to the storage cylinder (20).

4. The wire rope vibration suppression device according to claim 3, characterized in that: The storage cylinder (20) forms a cylindrical structure. The end cover (21) is adapted to the storage cylinder (20) and blocks and seals the opening of the storage cylinder (20). An axial hole adapted to the rotating shaft (22) is provided at the end of the end cover (21). A sealing ring is provided in the axial hole. The rotating shaft (22) passes through the end cover (21) and extends into the cavity of the storage cylinder (20). A threaded hole is provided on the circumferential surface of the storage cylinder (20). The blocking bolt (24) is threadedly connected to the threaded hole.

5. The wire rope vibration suppression device according to claim 3, characterized in that: The damping structure further comprises an extension plate (30) and a tension spring (31); the paddle plate (23) is provided with a slide groove adapted to fit the extension plate (30); the extension plate (30) and the tension spring (31) are both located in the slide groove; the extension plate (30) is elastically connected to the paddle plate (23).

6. The wire rope vibration suppression device according to claim 5, characterized in that: The extension plate (30) and the paddle plate (23) are both rectangular plate structures, the depth of the chute is less than the height of the paddle plate (23), the extension plate (30) is adapted to the chute, the extension plate (30) is slidably arranged in the chute, one end of the tension spring (31) is fixedly connected to the extension plate (30) and the other end of the tension spring (31) is fixedly connected to the inner bottom surface of the paddle plate (23).

7. A mine hoist, comprising a frame, a winch fixedly mounted on the frame, a cable wound around a winding roller of the winch, characterized in that: The cable is provided with a wire rope vibration suppression device according to any one of claims 1 to 6 near the end thereof, and the clamp (10) is fixed on the cable.

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