Bidirectional anti-rolling lifting mechanism of crane

Abstract

The invention discloses a bidirectional anti-rolling hoisting mechanism of a crane. The bidirectional anti-rolling hoisting mechanism comprises a hoisting trolley frame; the lifting appliance mechanism is positioned below the lifting trolley frame; the lifting appliance mechanism is used for lifting the container; the winding drum mechanism group is arranged on the hoisting trolley frame; extending a fixed pulley block; the movable pulley blocks are arranged on the lifting appliance mechanism and are arranged at the front end and the rear end of the lifting appliance mechanism in the length direction; a reversing fixed pulley block; a fixed seat group; the fixed seat groups are arranged at the left end and the right end of the sling mechanism in the length direction and are positioned in the middle of the sling mechanism in the length direction; the steel wire rope group is wound in the winding drum mechanism group; wherein four steel wire ropes of the steel wire rope group are fixedly connected to the fixing seats of the corresponding fixing seat group through the corresponding extension fixed pulley block fixed pulley, the movable pulley block movable pulley and the reversing fixed pulley block fixed pulley in sequence. And the hoisting efficiency is obviously improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, and more specifically, to a two-way anti-sway lifting mechanism for cranes. Background Art

[0002] A container is a tool that can carry packaged or unpackaged goods for transportation and is easy to load and unload using mechanical equipment. During the transportation of containers, whether it is loaded onto a truck or a ship, it needs to be lifted by a crane. In order to facilitate lifting, most special container lifts are used.

[0003] However, in the prior art, the container spreader is very likely to shake during the operation of the crane, which makes it difficult to dock the container spreader with the container, seriously affecting the lifting efficiency.

[0004] Therefore, how to provide a bidirectional anti-sway lifting mechanism for a crane that can overcome the above-mentioned technical problems, overcome the problem of shaking of container spreaders during crane operation, and improve lifting efficiency has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a bidirectional anti-sway lifting mechanism for a crane, which can overcome the above technical problems, overcome the problem of shaking of container spreaders during the operation of the crane, and improve the lifting efficiency.

[0006] The technical solution provided by the present invention is as follows:

[0007] The present invention provides a two-way anti-sway lifting mechanism of a crane, comprising: a lifting trolley frame; a sling mechanism located below the lifting trolley frame; the sling mechanism is used to lift a container; a drum mechanism group arranged on the lifting trolley frame; an extended fixed pulley group arranged on the four corners of the lifting trolley frame, the extended fixed pulley group is located on the left and right sides of the length direction of the sling mechanism; a movable pulley group arranged on the sling mechanism, the movable pulley group is arranged at the front and rear ends of the length direction of the sling mechanism; a drum mechanism group arranged on the lifting trolley frame, the extended fixed pulley group is located on the left and right sides of the length direction of the sling mechanism; a movable pulley group arranged on the lifting trolley frame ... movable pulley group arranged on the lifting trolley frame, the movable pulley group is arranged at the front and rear ends of the length direction of the sling mechanism; a movable pulley group arranged on the lifting trolley frame, the movable pulley group is arranged at the front and rear ends of the sling mechanism; a movable pulley group arranged on the lifting trolley frame, the movable pulley group is arranged at the front and rear ends of the sling mechanism; a movable pulley group arranged on the lifting trolley frame, the movable pulley group is arranged at the front and rear ends of the sling mechanism; a movable pulley group arranged on the lifting trolley frame, the movable pulley group is arranged at the front and rear ends of the sling mechanism; a movable pulley group arranged on the lifting trolley frame, the movable pulley group is arranged at the A reversing fixed pulley group above the movable pulley group; a fixed seat group arranged on the hoisting mechanism; the fixed seat group is arranged at the left and right ends of the length direction of the hoisting mechanism, and the fixed seat group is located in the middle position of the length direction of the hoisting mechanism; a wire rope group wound in the drum mechanism group, the wire rope group; wherein the 4 wire ropes of the wire rope group are respectively and sequentially fixedly connected to the fixed seat of the corresponding fixed seat group through the corresponding fixed pulley of the extended fixed pulley group, the movable pulley of the movable pulley group, and the fixed pulley of the reversing fixed pulley group.

[0008] Furthermore, in a preferred embodiment of the present invention, the fixed seat group includes: a first fixed seat and a second fixed seat; the first fixed seat and the second fixed seat are both located on the central axis of the vertical length direction of the sling mechanism; the first fixed seat and the second fixed seat are symmetrically arranged about the vertical plane of the central axis of the length direction of the sling mechanism.

[0009] Furthermore, in a preferred embodiment of the present invention, the movable pulley group includes: a first movable pulley, a second movable pulley, a third movable pulley, and a fourth movable pulley; the first movable pulley and the fourth movable pulley constitute a group of movable pulleys; the second movable pulley and the third movable pulley constitute two groups of movable pulleys; the group of movable pulleys is arranged at the front end in the length direction of the sling mechanism; the two groups of movable pulleys are arranged at the rear end in the length direction of the sling mechanism.

[0010] Furthermore, in a preferred embodiment of the present invention, the first movable pulley and the fourth movable pulley are symmetrically arranged about a vertical plane of the central axis in the length direction of the sling mechanism; the second movable pulley and the third movable pulley are symmetrically arranged about a vertical plane of the central axis in the length direction of the sling mechanism; the rotation axis directions of the first movable pulley, the second movable pulley, the third movable pulley and the fourth movable pulley are parallel to the central axis in the length direction of the sling mechanism.

[0011] Furthermore, in a preferred embodiment of the present invention, a first distance between the extended fixed pulley set and a vertical plane of the center axis in the length direction of the sling mechanism is greater than a second distance between the movable pulley set and a vertical plane of the center axis in the length direction of the sling mechanism.

[0012] Further, in a preferred embodiment of the present invention, the extended fixed pulley group includes: a first extended fixed pulley, a second extended fixed pulley, a third extended fixed pulley, and a fourth extended fixed pulley; the first extended fixed pulley is correspondingly connected to the first movable pulley through a steel wire rope; the second extended fixed pulley is correspondingly connected to the second movable pulley through a steel wire rope; the third extended fixed pulley is correspondingly connected to the third movable pulley through a steel wire rope; the fourth extended fixed pulley is correspondingly connected to the fourth movable pulley through a steel wire rope; wherein, the first extended fixed pulley and the first movable pulley, the fourth extended fixed pulley and the fourth movable pulley are located in the same working plane; the second extended fixed pulley and the second movable pulley, the third extended fixed pulley and the third movable pulley are located in the same working plane.

[0013] Further, in a preferred embodiment of the present invention, the reversing fixed pulley group includes: a first reversing fixed pulley group, a second reversing fixed pulley group, a third reversing fixed pulley group, and a fourth reversing fixed pulley group; the first reversing fixed pulley group and the first movable pulley are correspondingly connected via a steel wire rope; the second reversing fixed pulley group and the second movable pulley are correspondingly connected via a steel wire rope; the third reversing fixed pulley group and the third movable pulley are correspondingly connected via a steel wire rope; the fourth reversing fixed pulley group and the fourth movable pulley are correspondingly connected via a steel wire rope.

[0014] Furthermore, in a preferred embodiment of the present invention, the first reversing fixed pulley group, the second reversing fixed pulley group, the third reversing fixed pulley group, and the fourth reversing fixed pulley group all include: a reversing fixed pulley and a guide fixed pulley; the reversing fixed pulley and the guide fixed pulley constitute a single fixed pulley group; the guide fixed pulley is between the reversing fixed pulley and the movable pulley group; the steel wire rope extending from the movable pulley group is passed into the reversing fixed pulley after its direction is adjusted by the guide fixed pulley, and the steel wire rope extending from the reversing fixed pulley is connected to the fixed seat group.

[0015] Furthermore, in a preferred embodiment of the present invention, the steel wire rope extending from the first reversing fixed pulley group and the second reversing fixed pulley group is connected to the first fixed seat; the steel wire rope extending from the third reversing fixed pulley group and the fourth reversing fixed pulley group is connected to the second fixed seat.

[0016] Furthermore, in a preferred embodiment of the present invention, the drum mechanism group includes: a first drum mechanism and a second drum mechanism; the wire rope group includes: a first wire rope, a second wire rope, a third wire rope and a fourth wire rope; the first drum mechanism reels the first wire rope and the fourth wire rope; the second drum mechanism reels the second wire rope and the third wire rope; after the first wire rope extends from the first drum mechanism, it is connected to the first fixed pulley via the first extended fixed pulley, the first movable pulley and the first reversing fixed pulley group in sequence. seat; after the second steel wire rope extends out from the second drum mechanism, it is connected to the first fixed seat via the second extended fixed pulley, the second movable pulley and the second reversing fixed pulley group in sequence; after the third steel wire rope extends out from the second drum mechanism, it is connected to the second fixed seat via the third extended fixed pulley, the third movable pulley and the third reversing fixed pulley group in sequence; after the fourth steel wire rope extends out from the first drum mechanism, it is connected to the second fixed seat via the fourth extended fixed pulley, the fourth movable pulley and the fourth reversing fixed pulley group in sequence.

[0017] A bidirectional anti-sway lifting mechanism of a crane provided in an embodiment of the present invention comprises: a lifting trolley frame; a sling mechanism located below the lifting trolley frame; the sling mechanism is used to lift containers; a drum mechanism group arranged on the lifting trolley frame; an extended fixed pulley group arranged on the four corners of the lifting trolley frame, the extended fixed pulley group being located on the left and right sides of the length direction of the sling mechanism; a movable pulley group arranged on the sling mechanism, the movable pulley group being arranged at the front and rear ends in the length direction of the sling mechanism; a reversing fixed pulley group arranged on the lifting trolley frame and located above the movable pulley group; a fixed seat group arranged on the sling mechanism; the fixed seat group being arranged at the left and right ends in the length direction of the sling mechanism, and the fixed seat group being located in the middle position in the length direction of the sling mechanism; a reversing fixed pulley group arranged on the lifting trolley frame and located above the movable pulley group; a fixed seat group arranged on the sling mechanism; the fixed seat group being arranged at the left and right ends in the length direction of the sling mechanism, and the fixed seat group being located in the middle position in the length direction of the sling mechanism; a reversing fixed pulley group arranged on the lifting trolley frame and located above the movable pulley group; a reversing fixed pulley ... reversing fixed pulley group The wire rope group arranged in the drum mechanism group, the wire rope group; wherein the four wire ropes of the wire rope group are respectively and sequentially fixedly connected to the corresponding fixed seat of the fixed seat group through the corresponding fixed pulley of the extended fixed pulley group, the movable pulley of the movable pulley group, and the fixed pulley of the reversing fixed pulley group. In the scheme involved in the present invention, the first rope segment of the wire rope is the fixed pulley fixed on the trolley frame after the wire rope is wound out from the drum, so that the second rope segment is wound out from the fixed pulley and passes through the outer side of the movable pulley on the sling, so that the angle of the inclined pull in the direction of the trolley is larger, and the third rope segment is wound out from the inner side of the movable pulley on the sling and passes through the wire rope guide device in the same outer direction of the movable pulley. In this way, there is no crossing area between the two wire ropes in the trolley direction on the same longitudinal side, and the two movable pulleys in the same longitudinal direction do not need to be staggered. Compared with the prior art, the crane bidirectional anti-sway lifting mechanism provided by the embodiment of the present invention can overcome the above-mentioned technical problems, overcome the problem of shaking of the container sling during the operation of the crane, and significantly improve the lifting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the overall structure of a bidirectional anti-sway lifting mechanism for a crane provided in an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the components of the bidirectional anti-sway hoisting mechanism of a crane involved in an embodiment of the present invention;

[0021] Figure 3 It is a side view of a bidirectional anti-sway hoisting mechanism of a crane according to an embodiment of the present invention;

[0022] Figure 4 It is a schematic diagram of the main structure of a bidirectional anti-sway hoisting mechanism of a crane involved in an embodiment of the present invention;

[0023] Figure 5 It is a bottom view schematic diagram of the lifting trolley frame structure involved in an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0028] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0029] like Figures 1 to 5 As shown, a bidirectional anti-sway lifting mechanism of a crane provided by an embodiment of the present invention comprises: a lifting trolley frame 1; a sling mechanism 2 located below the lifting trolley frame 1; the sling mechanism 2 is used to lift a container; a drum mechanism group 3 arranged on the lifting trolley frame 1; an extended fixed pulley group 5 arranged on the four corners of the lifting trolley frame 1, and the extended fixed pulley group 5 is located on the left and right sides of the length direction of the sling mechanism 2; a movable pulley group 4 arranged on the sling mechanism 2, and the movable pulley group 4 is arranged at the front and rear ends of the length direction of the sling mechanism 2; a drum mechanism group 3 arranged on the lifting trolley frame 1; an extended fixed pulley group 5 arranged on the four corners of the lifting trolley frame 1, and the extended fixed pulley group 5 is located on the left and right sides of the length direction of the sling mechanism 2; a movable pulley group 4 arranged on the lifting trolley frame 1, and the movable pulley group 4 is arranged at the front and rear ends of the length direction of the sling mechanism 2; A reversing fixed pulley group 6 above the movable pulley group 4; a fixed seat group 7 arranged on the hoisting mechanism 2; the fixed seat group 7 is arranged at the left and right ends of the hoisting mechanism 2 in the length direction, and the fixed seat group 7 is located in the middle position of the length direction of the hoisting mechanism 2; a wire rope group 8 wound in the drum mechanism group 3, the wire rope group 8; wherein the 4 wire ropes of the wire rope group 8 are respectively and sequentially fixedly connected to the corresponding fixed pulley of the extended fixed pulley group 5, the movable pulley of the movable pulley group 4, and the fixed pulley of the reversing fixed pulley group 6 to the fixed seat of the fixed seat group 7. In the scheme involved in the embodiment of the present invention, the first rope segment of the wire rope is the wire rope that is wound off from the drum and passes through the fixed pulley fixed on the trolley frame, so that the second rope segment is wound off from the fixed pulley and passes through the outer side of the movable pulley on the sling, so that the oblique pulling angle in the direction of the trolley is larger, and the third rope segment is wound off from the inner side of the movable pulley on the sling and passes through the wire rope guide device in the same outer side direction of the movable pulley. In this way, there is no crossing area between the two wire ropes in the trolley direction on the same longitudinal side, and the two movable pulleys in the same longitudinal direction do not need to be staggered. Compared with the prior art, the bidirectional anti-sway lifting mechanism of the crane provided by the embodiment of the present invention can overcome the above-mentioned technical problems, overcome the problem of shaking of the container sling during the operation of the crane, and significantly improve the lifting efficiency.

[0030] Specifically, in an embodiment of the present invention, the fixed seat group 7 includes: a first fixed seat 701 and a second fixed seat 702; the first fixed seat 701 and the second fixed seat 702 are both located on the central axis of the vertical length direction of the sling mechanism 2; the first fixed seat 701 and the second fixed seat 702 are symmetrically arranged in a vertical plane about the central axis of the length direction of the sling mechanism 2.

[0031] It should be noted that the first fixing seat 701 and the second fixing seat 702 are located at two ends of the lifting device mechanism 2 in the vertical length direction.

[0032] Specifically, in an embodiment of the present invention, the movable pulley group 4 includes: a first movable pulley 401, a second movable pulley 402, a third movable pulley 403, and a fourth movable pulley 404; the first movable pulley 401 and the fourth movable pulley 404 constitute a group of movable pulleys; the second movable pulley 402 and the third movable pulley 403 constitute two groups of movable pulleys; the one group of movable pulleys is arranged at the front end in the length direction of the sling mechanism 2; the two groups of movable pulleys are arranged at the rear end in the length direction of the sling mechanism 2.

[0033] Specifically, in an embodiment of the present invention, the first movable pulley 401 and the fourth movable pulley 404 are symmetrically arranged about a vertical plane of the central axis in the length direction of the sling mechanism 2; the second movable pulley 402 and the third movable pulley 403 are symmetrically arranged about a vertical plane of the central axis in the length direction of the sling mechanism 2; the directions of the rotation axes of the first movable pulley 401, the second movable pulley 402, the third movable pulley 403, and the fourth movable pulley 404 are parallel to the central axis in the length direction of the sling mechanism 2.

[0034] Specifically, in the embodiment of the present invention, a first distance L1 between the extended fixed pulley block 5 and a vertical plane of the longitudinal center axis of the sling mechanism 2 is greater than a second distance L2 between the movable pulley block 4 and a vertical plane of the longitudinal center axis of the sling mechanism 2.

[0035] Specifically, in an embodiment of the present invention, the extended fixed pulley group 5 includes: a first extended fixed pulley 501, a second extended fixed pulley 502, a third extended fixed pulley 503, and a fourth extended fixed pulley 504; the first extended fixed pulley 501 is correspondingly connected to the first movable pulley 401 through a steel wire rope; the second extended fixed pulley 502 is correspondingly connected to the second movable pulley 402 through a steel wire rope; the third extended fixed pulley 503 is correspondingly connected to the third movable pulley 403 through a steel wire rope; the fourth extended fixed pulley 504 is correspondingly connected to the fourth movable pulley 404 through a steel wire rope; wherein, the first extended fixed pulley 501 and the first movable pulley 401, the fourth extended fixed pulley 504 and the fourth movable pulley 404 are located in the same working plane; the second extended fixed pulley 502 and the second movable pulley 402, the third extended fixed pulley 503 and the third movable pulley 403 are located in the same working plane.

[0036] Specifically, in an embodiment of the present invention, the reversing fixed pulley group 6 includes: a first reversing fixed pulley group 601, a second reversing fixed pulley group 602, a third reversing fixed pulley group 603, and a fourth reversing fixed pulley group 604; the first reversing fixed pulley group 601 is correspondingly connected to the first movable pulley 401 through a steel wire rope; the second reversing fixed pulley group 602 is correspondingly connected to the second movable pulley 402 through a steel wire rope; the third reversing fixed pulley group 603 is correspondingly connected to the third movable pulley 403 through a steel wire rope; the fourth reversing fixed pulley group 604 is correspondingly connected to the fourth movable pulley 404 through a steel wire rope.

[0037] In the embodiment of the present invention, the first extended fixed pulley 501 and the first movable pulley 401, the second extended fixed pulley 502 and the second movable pulley 402, the third extended fixed pulley 503 and the third movable pulley 403, and the fourth extended fixed pulley 504 and the fourth movable pulley 404 are connected one-to-one through the wire rope, ensuring that each movable pulley has an independent extended fixed pulley to guide the wire rope, thereby increasing the stability and reliability of the system. The first extended fixed pulley 501 and the first movable pulley 401, the fourth extended fixed pulley 504 and the fourth movable pulley 404 are located in the same working plane. Similarly, the second extended fixed pulley 502 and the second movable pulley 402, the third extended fixed pulley 503 and the third movable pulley 403 are also located in the same working plane, which helps to reduce the friction and wear of the wire rope when it passes around the pulley, while improving the overall efficiency and life of the pulley block. Through the configuration of the extended fixed pulley block, the wire rope can pass around the movable pulley at a larger angle, thereby increasing the oblique pulley effect. This helps to better restrain the horizontal swing of the sling and improve the stability of the lifting operation. Similar to the extended fixed pulley block, the reversing fixed pulley block also adopts a one-to-one connection method, that is, each movable pulley corresponds to a reversing fixed pulley block. This configuration ensures that the wire rope can smoothly enter the reversing fixed pulley block after passing around the movable pulley, adjust the direction, and finally connect to the fixed seat group. The design of the reversing fixed pulley block enables the wire rope to be adjusted in the predetermined direction, which is crucial to ensure that the wire rope can be correctly connected to the fixed seat group. It also helps to reduce the friction and wear of the wire rope in the system.

[0038] In addition, through the configuration of the reversing fixed pulley group, the system can more flexibly respond to different lifting requirements. When the height or direction of the sling needs to be adjusted, it can be achieved by changing the winding and releasing speed of the drum mechanism group and adjusting the angle of the reversing fixed pulley group. The configuration of the extended fixed pulley group and the reversing fixed pulley group in this embodiment not only improves the stability and reliability of the system, but also enhances the inclined pulling effect and improves the stability of the lifting operation. At the same time, this configuration also increases the flexibility of the system, enabling it to better adapt to different lifting requirements.

[0039] Specifically, in the embodiment of the present invention, the first reversing fixed pulley group 601, the second reversing fixed pulley group 602, the third reversing fixed pulley group 603, and the fourth reversing fixed pulley group 604 all include: a reversing fixed pulley 6a and a guide fixed pulley 6b; the reversing fixed pulley 6a and the guide fixed pulley 6b constitute a single fixed pulley group; the guide fixed pulley 6b is between the reversing fixed pulley 6a and the movable pulley group 4; the wire rope extending from the movable pulley group 4 is passed into the reversing fixed pulley 6a after its direction is adjusted by the guide fixed pulley 6b, and the wire rope extending from the reversing fixed pulley 6a is connected to the fixed seat group 7.

[0040] Specifically, in an embodiment of the present invention, the steel wire rope extending from the first reversing fixed pulley group 601 and the second reversing fixed pulley group 602 is connected to the first fixed seat 701; the steel wire rope extending from the third reversing fixed pulley group 603 and the fourth reversing fixed pulley group 604 is connected to the second fixed seat 702.

[0041] Specifically, in the embodiment of the present invention, the drum mechanism group 3 includes: a first drum mechanism 301, a second drum mechanism 302; the wire rope group 8 includes: a first wire rope 801, a second wire rope 802, a third wire rope 803, and a fourth wire rope 804; the first drum mechanism 301 reels the first wire rope 801 and the fourth wire rope 804; the second drum mechanism 302 reels the second wire rope 802 and the third wire rope 803; after the first wire rope 801 extends from the first drum mechanism 301, it is connected to the first fixed seat 701 via the first extension fixed pulley 501, the first movable pulley 401 and the first reversing fixed pulley group 601 in sequence; After the second steel wire rope 802 extends from the second drum mechanism 302, it is connected to the first fixed seat 701 via the second extended fixed pulley 502, the second movable pulley 402 and the second reversing fixed pulley group 602 in sequence; after the third steel wire rope 803 extends from the second drum mechanism 302, it is connected to the second fixed seat 702 via the third extended fixed pulley 503, the third movable pulley 403 and the third reversing fixed pulley group 603 in sequence; after the fourth steel wire rope 804 extends from the first drum mechanism 301, it is connected to the second fixed seat 702 via the fourth extended fixed pulley 504, the fourth movable pulley 404 and the fourth reversing fixed pulley group 604 in sequence.

[0042] To be more specific, it should be noted that during the transportation of containers, whether loading onto trucks or ships, they need to be lifted by cranes. For the convenience of lifting, special container spreaders are mostly used. However, since the angles between the wire rope and the spreader are vertical, no inclined pull is formed in the horizontal and longitudinal directions of the spreader. Therefore, there is no horizontal component force to constrain the horizontal swing of the spreader, which makes it very easy for the container spreader to shake during the operation of the crane, resulting in difficulty in the docking of the container spreader with the container. The operator needs to move the container spreader to the vicinity of the container first, and then wait for the container spreader to be stationary before further operating the container spreader to tighten the connection with the container, which seriously affects the lifting efficiency. Although a two-way anti-sway lifting mechanism has been provided in the prior art, the anti-sway mechanism includes a movable pulley fixed on the sling, a drum, a guide fixed pulley and a reversing fixed pulley fixed on the trolley frame; the two movable pulleys in the same longitudinal direction face each other as the inner side, and the opposite side as the outer side, and the two movable pulleys are staggered in the same longitudinal direction, and the wire rope is wound off from the drum, introduced through the outer side of the movable pulley on the sling, and then led out from the inner side of the movable pulley on the sling, and connected to the sling after passing through the other outer guide fixed pulley and the reversing fixed pulley, but In this technical solution, the first rope segment of the wire rope is directly wound from the drum to the outside of the movable pulley on the sling, so that the oblique pulling angle in the direction of the trolley is relatively small. In addition, the second rope segment is a wire rope led out from the inside of the movable pulley on the sling through the other outer guide fixed pulley. In this way, the two wire ropes in the direction of the trolley on the same longitudinal side will have an intersection area. The prior art staggers the two movable pulleys in the same longitudinal direction, so that the horizontal force components of the two wire ropes are not on the same straight line, which may still cause the sling to shake.

[0043] Based on the deficiencies in the prior art, the first rope segment of the wire rope of the present invention is the wire rope that is wound off from the drum and passes through the fixed pulley fixed on the trolley frame, so that the second rope segment is wound off from the fixed pulley and passes through the outer side of the movable pulley on the sling, thus making the inclined pull angle in the direction of the trolley larger; the third rope segment is wound off from the inner side of the movable pulley on the sling and passes through the wire rope guide device located in the same outer side direction of the movable pulley, thus making the inclined pull angle in the direction of the trolley larger; the third rope segment is wound off from the inner side of the movable pulley on the sling and passes through the wire rope guide device located in the same outer side direction of the movable pulley, thus making the two wire ropes in the direction of the trolley on the same longitudinal side not have an intersection area, and the two movable pulleys in the same longitudinal direction do not need to be staggered. Among them, the wire rope winding group is provided with a fixed pulley and a wire rope guide device, so that the first rope segment on the wire rope in the wire rope winding group increases the inclined pull angle of the wire rope, and the remaining three rope segments are all inclined rope segments, among which the second and third rope segments are longitudinal inclined rope segments, and the fourth rope segment is a transverse inclined rope segment, and then the sway reduction of the sling frame in the transverse or longitudinal direction is achieved through the cooperation of the three inclined rope segments. Since different steel wire ropes do not cross each other in the longitudinal and transverse directions, there is no need to consider the interference between different steel wire ropes. In summary, the technical solution involved in the embodiment of the present invention has the following technical effects:

[0044] After the wire rope is wound off the drum, it first passes through the fixed pulley fixed on the trolley frame, and then winds out to pass the outside of the movable pulley on the sling. This makes the inclined pulling angle in the direction of the trolley larger, increases the horizontal component of force, and helps to restrain the horizontal swing of the sling.

[0045] After the third rope segment is wound out from the inner side of the movable pulley on the sling, it passes through the wire rope guide device on the same outer side of the movable pulley, instead of passing through the guide fixed pulley on the other outer side as in the prior art. This design can avoid the existence of a cross area between the two wire ropes in the trolley direction on the same longitudinal side, simplify the structure, and reduce interference problems.

[0046] There is no need to stagger the movable pulleys. Since the crossing of the wire ropes is avoided, the two movable pulleys in the same longitudinal direction do not need to be staggered. This not only simplifies the design of the sling mechanism, but also makes the horizontal force component on the wire rope easier to be in the same straight line, further reducing the swing of the sling.

[0047] In addition, the wire rope winding group forms three oblique rope segments by setting a fixed pulley and a wire rope guide device, that is, the second and third rope segments are longitudinal oblique rope segments, and the fourth rope segment is a transverse oblique rope segment. In this way, the three oblique rope segments cooperate with each other and can more effectively achieve the lateral or longitudinal anti-sway of the sling frame.

[0048] In addition, since the shaking of the spreader is reduced, the operator can more easily dock the container spreader with the container without waiting for the spreader to be stationary, which greatly improves the lifting efficiency and shortens the operation time. Compared with the prior art, the bidirectional anti-sway lifting mechanism of the crane provided by the embodiment of the present invention can overcome the above-mentioned technical problems, overcome the problem of shaking of the container spreader during the operation of the crane, significantly improve the lifting efficiency, and have a significant technical effect.

[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A two-way anti-sway lifting mechanism for a crane, characterized in that: include: Lifting trolley frame (1); A sling mechanism (2) located below the lifting trolley frame (1); the sling mechanism (2) is used to sling containers; A reel mechanism group (3) arranged on the lifting trolley frame (1); An extended fixed pulley block (5) arranged at the four corners of the lifting trolley frame (1), wherein the extended fixed pulley block (5) is located on the left and right sides of the length direction of the lifting device mechanism (2); A movable pulley block (4) is arranged on the sling mechanism (2), and the movable pulley block (4) is arranged at the front and rear ends of the sling mechanism (2) in the length direction; A reversing fixed pulley block (6) arranged on the lifting trolley frame (1) and located above the movable pulley block (4); A fixed seat group (7) is arranged on the sling mechanism (2); the fixed seat group (7) is arranged at the left and right ends of the sling mechanism (2) in the length direction, and the fixed seat group (7) is located in the middle position of the sling mechanism (2) in the length direction; A steel wire rope group (8) wound around the winding drum mechanism group (3); The four steel wire ropes of the steel wire rope group (8) are respectively and sequentially fixedly connected to the corresponding fixed seat of the fixed seat group (7) through the corresponding fixed pulley of the extended fixed pulley group (5), the movable pulley of the movable pulley group (4), and the fixed pulley of the reversing fixed pulley group (6).

2. The bidirectional anti-sway lifting mechanism of a crane according to claim 1 is characterized in that: The fixing seat group (7) comprises: a first fixing seat (701) and a second fixing seat (702); The first fixing seat (701) and the second fixing seat (702) are both located on the central axis of the lifting device mechanism (2) in the vertical length direction; The first fixing seat (701) and the second fixing seat (702) are symmetrically arranged in a vertical plane with respect to the central axis in the length direction of the sling mechanism (2).

3. The bidirectional anti-sway lifting mechanism of a crane according to claim 2 is characterized in that: The movable pulley group (4) comprises: a first movable pulley (401), a second movable pulley (402), a third movable pulley (403), and a fourth movable pulley (404); The first movable pulley (401) and the fourth movable pulley (404) form a set of movable pulleys; The second movable pulley (402) and the third movable pulley (403) constitute two sets of movable pulleys; The set of movable pulleys is arranged at the front end in the length direction of the sling mechanism (2); The two sets of movable pulleys are arranged at the rear end in the length direction of the sling mechanism (2).

4. The bidirectional anti-sway lifting mechanism of a crane according to claim 3 is characterized in that: The first movable pulley (401) and the fourth movable pulley (404) are symmetrically arranged in a vertical plane with respect to the central axis in the length direction of the sling mechanism (2); The second movable pulley (402) and the third movable pulley (403) are symmetrically arranged in a vertical plane with respect to the central axis in the length direction of the sling mechanism (2); The directions of the rotation axes of the first movable pulley (401), the second movable pulley (402), the third movable pulley (403) and the fourth movable pulley (404) are parallel to the longitudinal center axis of the sling mechanism (2).

5. The bidirectional anti-sway lifting mechanism of a crane according to claim 3 or 4, characterized in that: A first distance (L1) between the extended fixed pulley block (5) and a vertical plane of the center axis in the length direction of the sling mechanism (2) is greater than a second distance (L2) between the movable pulley block (4) and a vertical plane of the center axis in the length direction of the sling mechanism (2).

6. The bidirectional anti-sway lifting mechanism of a crane according to claim 5, characterized in that: The extended fixed pulley group (5) comprises: a first extended fixed pulley (501), a second extended fixed pulley (502), a third extended fixed pulley (503), and a fourth extended fixed pulley (504); The first extended fixed pulley (501) and the first movable pulley (401) are correspondingly connected via a steel wire rope; The second extended fixed pulley (502) and the second movable pulley (402) are correspondingly connected via a steel wire rope; The third extended fixed pulley (503) and the third movable pulley (403) are correspondingly connected via a steel wire rope; The fourth extended fixed pulley (504) and the fourth movable pulley (404) are correspondingly connected via a steel wire rope; The first extended fixed pulley (501) and the first movable pulley (401), and the fourth extended fixed pulley (504) and the fourth movable pulley (404) are located in the same working plane; The second extended fixed pulley (502) and the second movable pulley (402), and the third extended fixed pulley (503) and the third movable pulley (403) are located in the same working plane.

7. The bidirectional anti-sway lifting mechanism of a crane according to claim 6, characterized in that: The reversing fixed pulley group (6) comprises: a first reversing fixed pulley group (601), a second reversing fixed pulley group (602), a third reversing fixed pulley group (603), and a fourth reversing fixed pulley group (604); The first reversing fixed pulley group (601) is connected to the first movable pulley (401) via a steel wire rope; the second reversing fixed pulley group (602) is connected to the second movable pulley (402) via a steel wire rope; the third reversing fixed pulley group (603) is connected to the third movable pulley (403) via a steel wire rope; the fourth reversing fixed pulley group (604) is connected to the fourth movable pulley (404) via a steel wire rope.

8. The bidirectional anti-sway lifting mechanism of a crane according to claim 7, characterized in that: The first reversing fixed pulley set (601), the second reversing fixed pulley set (602), the third reversing fixed pulley set (603), and the fourth reversing fixed pulley set (604) all include: A reversing fixed pulley (6a) and a guide fixed pulley (6b); The reversing fixed pulley (6a) and the guide fixed pulley (6b) form a single fixed pulley group; The guide fixed pulley (6b) is located between the reversing fixed pulley (6a) and the movable pulley group (4); The steel wire rope extending from the driven pulley block (4) is directed by the guide fixed pulley (6b) and then passes into the reversing fixed pulley (6a). The steel wire rope extending from the reversing fixed pulley (6a) is connected to the fixed seat block (7).

9. The bidirectional anti-sway lifting mechanism of a crane according to claim 8, characterized in that: The steel wire rope extending from the first reversing fixed pulley set (601) and the second reversing fixed pulley set (602) is connected to the first fixed seat (701); The steel wire rope extending from the third reversing fixed pulley set (603) and the fourth reversing fixed pulley set (604) is connected to the second fixed seat (702).

10. The bidirectional anti-sway lifting mechanism of a crane according to claim 9, characterized in that: The reel mechanism group (3) comprises: a first reel mechanism (301) and a second reel mechanism (302); The steel wire rope group (8) comprises: a first steel wire rope (801), a second steel wire rope (802), a third steel wire rope (803), and a fourth steel wire rope (804); The first drum mechanism (301) reels the first steel wire rope (801) and the fourth steel wire rope (804); the second drum mechanism (302) reels the second steel wire rope (802) and the third steel wire rope (803); After the first steel wire rope (801) extends from the first drum mechanism (301), it is connected to the first fixed seat (701) via the first extended fixed pulley (501), the first movable pulley (401) and the first reversing fixed pulley group (601) in sequence; After the second steel wire rope (802) extends from the second winding drum mechanism (302), it is connected to the first fixed seat (701) via the second extended fixed pulley (502), the second movable pulley (402) and the second reversing fixed pulley group (602) in sequence; After the third steel wire rope (803) extends from the second drum mechanism (302), it is connected to the second fixed seat (702) via the third extended fixed pulley (503), the third movable pulley (403) and the third reversing fixed pulley group (603) in sequence; After extending from the first drum mechanism (301), the fourth steel wire rope (804) is connected to the second fixed seat (702) via the fourth extended fixed pulley (504), the fourth movable pulley (404) and the fourth reversing fixed pulley group (604) in sequence.

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