A method of winding a rope for amplitude variation

Abstract

The application provides a winding rope method for amplitude variation, which comprises a steel wire rope, two amplitude variation winches, two amplitude variation pulley blocks and a steel wire rope connecting device, the steel wire rope connecting device is arranged between the two amplitude variation pulley blocks, the amplitude variation winch is arranged on a rotary platform, the amplitude variation pulley block comprises a first amplitude variation pulley frame and a second amplitude variation pulley frame, one end of a steel wire rope and the other end of another steel wire rope are sequentially wound around the first amplitude variation pulley frame and the second amplitude variation pulley frame respectively, and finally are clamped at two ends of the steel wire rope connecting device arranged between the two amplitude variation pulley blocks through a second pulley, so that the steel wire rope and the other steel wire rope are connected to form an integral whole through the steel wire rope connecting device, and the amplitude variation of the steel wire rope between the two winches is balanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crane wire rope, in particular to a winding method for amplitude variation. BACKGROUND

[0002] With the development of social industry, the amplitude variation of crane mainly has two forms of hydraulic cylinder amplitude variation and wire rope amplitude variation, and the amplitude variation wire rope is passed above the amplitude variation pulley after being led out from the amplitude variation mechanism, and the position height of the limiting partition plate above the amplitude variation pulley is not adjustable, which is easy to cause the trolley to run unstably, and the amplitude variation wire rope is easy to collide with the jib frame during movement, causing damage to the jib structure and the amplitude variation wire rope. In order to overcome this technical problem, a winding structure of amplitude variation wire rope for jib is disclosed in the patent document with the patent application number of 202320081540.1 and the publication date of 2023.04.25, which comprises an amplitude variation mechanism arranged on a balance arm, and the amplitude variation wire rope extended from the amplitude variation mechanism is sequentially wound around a plurality of guide pulleys, two horizontal guide rollers, a direction changing pulley and a tension pulley arranged on a jib, and then returns to the amplitude variation mechanism. The winding method of the amplitude variation wire rope on the guide pulley is to pass from the upper end of one guide pulley and then pass from the lower end of the next guide pulley. A trolley is arranged on the amplitude variation wire rope between the two horizontal guide rollers. A square tube is arranged below the connecting plate on the upper part of the guide pulley, the horizontal guide roller, the direction changing pulley and the tension pulley. A partition plate is arranged below the square tube, and the partition plate fixes the square tube below the connecting plate.

[0003] In this structure, the amplitude variation wire rope passes from the upper end of one guide pulley and then passes from the lower end of the next guide pulley, and is finally connected to the trolley, so that the trolley can run smoothly. However, the winding structure and method in this structure are only applicable to single winch amplitude variation wire rope, and cannot be used for double winch wire rope amplitude variation in a wide range. At the same time, such winding structure cannot connect the wire ropes between the double winches, so as to balance the amplitude variation of the wire ropes between the double winches, and further make the amplitude variation of the wire ropes between the double winches the same. SUMMARY

[0004] The present application aims to provide a winding method for amplitude variation, which can connect the wire ropes between the double winches to form a whole, and further balance the amplitude variation of the wire ropes between the double winches, and the winding method is simple.

[0005] To achieve the above-mentioned purpose, a winding method for amplitude variation is provided, which winds two wire ropes on two amplitude variation winches, two amplitude variation pulley sets and a wire rope connecting device.

[0006] Further comprising the following steps:

[0007] (1) winding and connecting one end of a wire rope to an amplitude variation winch;

[0008] (2) the other end of a steel wire is wound into the first pulley bottom of the first amplitude pulley frame close to the steel wire connecting device, then wound out from the first pulley bottom, then wound into the third pulley top of the second amplitude pulley frame corresponding to the first pulley, and finally wound out from the third pulley bottom and wound into the other first pulley bottom of the first amplitude pulley frame adjacent to the first pulley;

[0009] (3) steps (2) are repeated in sequence until the other end of a steel wire is wound out from the third pulley bottom of the second amplitude pulley frame, and then the other end of a steel wire is clamped with one end of the steel wire connecting device through the second pulley;

[0010] (4) the other end of another steel wire is wound and connected to the other amplitude winch, and then steps (2) and (3) are repeated so that the other end of a steel wire is clamped with the other end of the steel wire connecting device through the second pulley, and a steel wire and another steel wire are connected to form a whole through the steel wire connecting device.

[0011] The above arrangement can control the different amplitudes of the steel wire through the different outputs of the amplitude winches by arranging the amplitude winches on the rotating platform and connecting and winding one end of a steel wire and another steel wire to different amplitude winches. In addition, the other end of a steel wire and another steel wire is arranged to be wound in sequence through the first amplitude pulley frame and the second amplitude pulley frame, and finally clamped through the second pulley and the two ends of the steel wire connecting device arranged between the two amplitude pulley groups. In this way, a steel wire and another steel wire are connected to form a whole through the steel wire connecting device. When the outputs of the two different amplitude winches are different, the steel wire connecting device moves horizontally to the side with larger output of the amplitude winch, and the output of the other amplitude winch is adjusted to balance the different amplitudes, so that the amplitudes of the steel wires of the two amplitude winches are the same.

[0012] Further, the first pulley is provided with two or more than two and arranged horizontally side by side, and the second pulley is arranged below the first pulley and perpendicular to the first pulley.

[0013] The above arrangement can make the steel wire be wound in sequence and finally clamped and fixed through the second pulley in the first amplitude pulley frame and the steel wire connecting device.

[0014] Further, the steel wire connecting device comprises two wedge joints and two connecting pieces, the two wedge joints are arranged on the same horizontal axis and opposite to each other, and the two wedge joints are clamped with the two ends of the connecting piece respectively.

[0015] The above arrangement facilitates the connection of the two opposite wedge joints through the connecting piece.

[0016] Further, one end of the wedge-shaped joint is provided in a wedge shape, and the other end of the wedge-shaped joint is provided with two protrusions which are arranged in parallel on both sides of the other end of the wedge-shaped joint, and the protrusion comprises a gasket and a clamping protrusion, one end of the clamping protrusion is fixedly connected with the gasket, and the other end of the clamping protrusion extends outward.

[0017] The above arrangement can make one end of the steel wire rope pass through the wedge-shaped joint and then be knotted, so that the steel wire rope cannot slip off the wedge-shaped joint, and the wedge-shaped joint and the connecting piece can be clamped.

[0018] Further, the two ends of the connecting piece are provided with clamping openings matched with the clamping protrusions, and the clamping openings are sleeved on the clamping protrusions to realize clamping.

[0019] The above arrangement facilitates clamping of the connecting piece on the two wedge-shaped joints through the clamping openings, so as to connect the two wedge-shaped joints to form an integral whole.

[0020] Further, proximity switches are arranged on both sides of the steel wire rope connecting device, and the proximity switches are arranged between the amplitude pulley block and the steel wire rope connecting device.

[0021] The above arrangement can limit the left-right horizontal movement of the steel wire rope connecting device through the proximity switches, so as to prevent the steel wire rope from moving in a single direction to the left or to the right after being connected to form an integral whole through the steel wire rope connecting device due to different outputs of different amplitude winches, so that the steel wire rope is only biased to one side, resulting in uneven amplitude of the steel wire rope. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0023] Figure 2 It is a schematic diagram of the structure of the steel wire rope connecting device in the present application.

[0024] Figure 3 It is a partial exploded view of the steel wire rope connecting device in the present application.

[0025] Figure 4 It is a sectional view of the steel wire rope connecting device in the present application.

[0026] Figure 5 It is a flowchart of the winding step of the present application. DETAILED DESCRIPTION

[0027] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0028] As Figures 1 to 4As shown, a winding rope method for amplitude variation includes a steel wire rope, two amplitude variation winches, two amplitude variation pulley blocks, and a steel wire rope connecting device 2, the steel wire rope connecting device 2 is arranged between the two amplitude variation pulley blocks, the steel wire rope includes a steel wire rope 6 and another steel wire rope 7, the two amplitude variation winches include an amplitude variation winch 11 and another amplitude variation winch 12, in this embodiment, proximity switches (not marked in the figure) are arranged on both sides of the steel wire rope connecting device 2, and the proximity switches are arranged between the amplitude variation pulley block and the steel wire rope connecting device 2, so that the left and right horizontal movement of the steel wire rope connecting device 2 can be limited by the proximity switches, preventing the steel wire rope from moving in a single direction to the left or to the right after being connected to form a whole through the steel wire rope connecting device 2 due to different outputs of different amplitude variation winches, so that the steel wire rope is only biased to one side, causing uneven amplitude variation of the steel wire rope, the amplitude variation winch is fixedly arranged on a rotating platform (not shown in the figure), the amplitude variation pulley block includes a first amplitude variation pulley frame 31 and a second amplitude variation pulley frame 32, the first amplitude variation pulley frame 31 is fixedly arranged at the head of a boom (not shown in the figure), the second amplitude variation pulley frame 32 is fixedly arranged on a tripod (not shown in the figure), the first amplitude variation pulley frame 31 and the second amplitude variation pulley frame 32 are arranged in relative parallel, which facilitates subsequent winding of the steel wire rope, the first amplitude variation pulley frame 31 includes a first pulley 311 and a second pulley 312, in this embodiment, the first pulley 311 is provided with six and arranged horizontally coaxially side by side, the second pulley 312 is provided with one and arranged at the bottom of the first pulley 311, and the second pulley 312 is arranged vertically with the first pulley 311, so that after the steel wire rope winds around the second amplitude variation pulley frame 32, it is connected to one end of the steel wire rope connecting device 2 through the second pulley 312, in this embodiment, the second amplitude variation pulley frame 32 includes a third pulley 321, and the third pulley 321 has six and is arranged horizontally coaxially side by side.

[0029] In the embodiment, the steel wire rope connecting device 2 comprises two wedge joints 21 and two connecting pieces 22. The two wedge joints 21 are oppositely arranged and located on the same horizontal axis. One end of the wedge joint 21 is arranged in a wedge shape. The other end of the wedge joint 21 is provided with two protruding portions 211. In the embodiment, the inside of the wedge joint 21 is arranged in a hollow structure, so that the steel wire rope can pass through the wedge joint 21 and be knotted, so that the steel wire rope cannot slip out of the wedge joint 21. The two protruding portions 211 are arranged in parallel on the two sides of the other end of the wedge joint 21. In the embodiment, the two protruding portions 211 are coaxially arranged. The protruding portion 211 comprises a gasket 4 and a clamping block 5. The gasket 4 is fixed to the outside of the other end of the wedge joint 21. One end of the clamping block 5 is fixedly connected with the gasket 4. The other end of the clamping block 5 extends outwardly and is arranged perpendicularly to the gasket 4. The two ends of the connecting piece 22 are provided with clamping openings 221 matched with the clamping block 5. The clamping opening 221 is sleeved on the clamping block 5 to realize clamping. In this way, the connecting piece 22 can be clamped on the two wedge joints 21 through the clamping opening 221, so as to integrally connect the two wedge joints 21 with the two ends of the connecting piece 22.

[0030] As shown in Figure 5 , the winding method for amplitude variation further comprises the following specific steps:

[0031] (1) one end of a steel wire rope 6 is wound and connected to an amplitude winch 11;

[0032] (2) the other end of the steel wire rope 6 is wound into the first amplitude pulley frame 31 near the bottom of the first pulley 311 of the steel wire rope connecting device 2, then wound out from the bottom of the first pulley 311, then wound into the third pulley 321 of the second amplitude pulley frame 32 corresponding to the first pulley 311 from the top, and finally wound out from the bottom of the third pulley 321 and wound into the other first pulley bottom adjacent to the first pulley 311 in the first amplitude pulley frame 31;

[0033] (3) repeat step (2) in sequence until the other end of the steel wire rope 6 is wound through the first amplitude pulley frame 31 and the second amplitude pulley frame 32 in sequence, then wound out from the bottom of the third pulley 321 of the second amplitude pulley frame 32, then the other end of the steel wire rope 6 is wound through the second pulley 312 arranged below the first pulley 311, and knotted through the wedge joint 21 at one end of the steel wire rope connecting device 2, so that the other end of the steel wire rope 6 is clamped in the hollow structure in the wedge joint 21 by knotting;

[0034] (4) the other end of the other steel wire rope 7 is wound and connected to the other luffing winch 12, then steps (2) and (3) are repeated, so that the other end of the other steel wire rope 7 passes through the second pulley 312 arranged below the first pulley 311, and passes through the wedge joint 21 at the other end of the steel wire rope connecting device 2 to be knotted, so that the other end of the other steel wire rope 7 is clamped in the hollow structure inside the wedge joint 21, and the steel wire rope 6 and the other steel wire rope 7 are connected to form a whole through the steel wire rope connecting device 2.

[0035] The working principle of the present application is as follows: by arranging the luffing winch on the slewing platform, and connecting and winding one end of the steel wire rope and the other steel wire rope on different luffing winches, the different luffing of the steel wire rope can be controlled through the different outputs of the luffing winches; in addition, the other end of the steel wire rope and the other steel wire rope is arranged to pass through the first luffing pulley frame and the second luffing pulley frame in turn, and finally is clamped through the second pulley and the two ends of the steel wire rope connecting device arranged between the two luffing pulley groups, so that the steel wire rope and the other steel wire rope are connected to form a whole through the steel wire rope connecting device, so that when the outputs of the two different luffing winches are different, the steel wire rope connecting device will move horizontally to the side with the larger output of the luffing winch, and then the output of the other luffing winch can be adjusted to balance the different luffing, so that the luffing of the steel wire rope of the two luffing winches is the same.

Claims

1. A method for winding ropes for luffing, comprising winding two wire ropes around two luffing winches, two luffing pulley blocks, and a wire rope connecting device, wherein the wire rope connecting device is disposed between the two luffing pulley blocks, the luffing winches are disposed on a slewing platform, and the wire rope connecting device includes two wedge-shaped joints and two connecting pieces, the two wedge-shaped joints being on the same horizontal axis and arranged opposite to each other, the two wedge-shaped joints respectively engaging with both ends of the connecting pieces, one end of the wedge-shaped joint being wedge-shaped, and the other end of the wedge-shaped joint being... There are two protrusions, which are arranged parallel to each other on both sides of the other end of the wedge joint. Each protrusion includes a gasket and a locking protrusion. One end of the locking protrusion is fixedly connected to the gasket, and the other end of the locking protrusion extends outward. The luffing pulley group includes a first luffing pulley frame and a second luffing pulley frame. The first luffing pulley frame and the second luffing pulley frame are arranged parallel to each other. The first luffing pulley frame includes one or more first pulleys and a second pulley, and the second luffing pulley frame includes one or more third pulleys. Its features are: It also includes the following steps: (1) Wrap one end of a steel wire rope around a luffing winch; (2) Wrap the other end of a wire rope around the bottom of the first pulley in the first luffing pulley frame near the wire rope connecting device, then wrap it out from the bottom of the first pulley, then wrap it in from the top of the third pulley in the second luffing pulley frame corresponding to the first pulley, and finally wrap it out from the bottom of the third pulley and wrap it around the bottom of another first pulley in the first luffing pulley frame adjacent to the first pulley. (3) Repeat step (2) in sequence until the other end of a wire rope passes around the first luffing pulley frame and the second luffing pulley frame in sequence, and then comes out from the bottom of the third pulley in the second luffing pulley frame, so that the other end of a wire rope passes around the second pulley and is snapped into place at one end of the wire rope connecting device. (4) Wrap one end of another wire rope around another luffing winch, and then repeat steps (2) and (3) so that the other end of one wire rope passes around the second pulley and is engaged with the other end of the wire rope connecting device. One wire rope and another wire rope are connected to form a whole through the wire rope connecting device.

2. The method for winding a rope for luffing according to claim 1, characterized in that: The first pulley has two or more and is arranged horizontally side by side, and the second pulley is arranged below the first pulley and perpendicular to the first pulley.

3. The method for winding a rope for luffing according to claim 1, characterized in that: The connector has slots at both ends that match the protrusions, and the slots are fitted onto the protrusions to achieve a snap-fit ​​connection.

4. The method for winding a rope for luffing according to claim 1, characterized in that: Proximity switches are provided on both sides of the wire rope connecting device, and the proximity switches are located between the luffing pulley block and the wire rope connecting device.

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