Anti-rolling lifting mechanism of crane

Abstract

The invention discloses an anti-rolling lifting mechanism of a crane. The anti-rolling lifting mechanism comprises a lifting trolley frame; the lifting appliance mechanism is located below the lifting trolley frame, the overlook projection of the lifting appliance mechanism is in a first rectangular shape, and the first rectangular shape is divided into four coordinate quadrants according to a quadrant quartering method; the first winding drum mechanism and the second winding drum mechanism are arranged on the lifting trolley frame; the first steering fixed pulley, the second steering fixed pulley and the fourth steering fixed pulley are arranged on the lifting trolley frame and located in four quadrants of coordinates respectively; the first to fourth steering movable pulley blocks are arranged on the lifting appliance mechanism and are respectively positioned in four quadrants of the coordinate; the first steel wire rope fixing device, the second steel wire rope fixing device, the third steel wire rope fixing device, the fourth steel wire rope fixing device and the fourth steel wire rope fixing device are arranged on the lifting appliance mechanism and located in four quadrants of coordinates; the second steel wire rope and the third steel wire rope are wound in the second winding drum mechanism. Compared with the prior art, the technical scheme provided by the invention is simple in structure and high in working stability.

Description

Technical Field

[0006] The present invention relates to the technical field of cranes, and more specifically, to a crane anti-sway hoisting mechanism. Background Art

[0007] At present, although the existing anti-sway mechanism of container crane can effectively suppress the swing of container spreader and container in the running direction of trolley and / or large vehicle, thereby improving the operation efficiency and safety, there are still some defects in the prior art. The traditional anti-sway mechanism often requires an additional independent anti-sway system, which not only increases the overall complexity of the equipment, occupies more space, but also leads to an increase in cost.

[0008] Therefore, how to provide a crane anti-sway lifting mechanism with a simple structure and strong working stability has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0009] In order to solve the above technical problems, the present invention provides a crane anti-sway lifting mechanism, which has a simple structure and strong working stability.

[0010] The technical solution provided by the present invention is as follows:

[0011] The present invention provides a crane anti-sway lifting mechanism, comprising: a lifting trolley frame; a sling mechanism located below the lifting trolley frame, the sling mechanism is used to lift a container, the overhead projection of the sling mechanism is a first rectangular shape, and the first rectangular shape is divided into four coordinate quadrants according to the quadrant quartering method; a first drum mechanism and a second drum mechanism arranged on the lifting trolley frame and relatively arranged; the first drum mechanism is located on the boundary of the first quadrant and the fourth quadrant, and the second drum mechanism is located on the boundary of the second quadrant and the third quadrant; a first steering fixed pulley block, a second steering fixed pulley block, a third steering fixed pulley block and a fourth steering fixed pulley block arranged on the lifting trolley frame and respectively located in the four coordinate quadrants; a first steering movable pulley block, a second steering movable pulley block, a third steering movable pulley block and a fourth steering movable pulley block arranged on the sling mechanism and respectively located in the four coordinate quadrants; a first wire rope fixing device, a second wire rope fixing device, a third wire rope fixing device and a fourth wire rope fixing device arranged on the sling mechanism and respectively located in the four coordinate quadrants a fourth wire rope fixing device; a first wire rope and a fourth wire rope wound up in the first drum mechanism; a second wire rope and a third wire rope wound up in the second drum mechanism; wherein, the first wire rope, starting from the first drum mechanism, sequentially passes through the first diverting movable pulley group and the first diverting fixed pulley group in the first quadrant to be connected to the third wire rope fixing device in the third quadrant; the fourth wire rope, starting from the first drum mechanism, sequentially passes through the fourth diverting movable pulley group and the fourth diverting fixed pulley group in the fourth quadrant to be connected to the second wire rope fixing device in the second quadrant; the second wire rope, starting from the second drum mechanism, sequentially passes through the second diverting movable pulley group and the second diverting fixed pulley group in the second quadrant to be connected to the fourth wire rope fixing device in the fourth quadrant; the third wire rope, starting from the second drum mechanism, sequentially passes through the third diverting movable pulley group and the third diverting fixed pulley group in the third quadrant to be connected to the first wire rope fixing device in the first quadrant.

[0012] Furthermore, in a preferred embodiment of the present invention, the first diverting movable pulley set is embedded in the first movable pulley groove of the sling mechanism in the first quadrant; the second diverting movable pulley set is embedded in the second movable pulley groove of the sling mechanism in the second quadrant; the third diverting movable pulley set is embedded in the third movable pulley groove of the sling mechanism in the third quadrant; and the fourth diverting movable pulley set is embedded in the fourth movable pulley groove of the sling mechanism in the fourth quadrant.

[0013] Furthermore, in a preferred embodiment of the present invention, the first steering movable pulley group, the second steering movable pulley group, the third steering movable pulley group and the fourth steering movable pulley group include: a movable pulley body embedded in a corresponding movable pulley groove; a lubricating oil channel arranged inside the movable pulley body; an oil pump plug arranged at the outlet of the lubricating oil channel; a movable pulley fixing structure arranged on the central axis of the movable pulley body; a rolling bearing arranged on the central axis of the movable pulley body; and a limiter arranged between adjacent rolling bearings.

[0014] Furthermore, in a preferred embodiment of the present invention, the first steering movable pulley group, the second steering movable pulley group, the third steering movable pulley group and the fourth steering movable pulley group further include: a movable pulley protective cover arranged on the outer surface of the movable pulley wheel body for protecting the movable pulley wheel body; and a protective cover fixing structure arranged on the movable pulley protective cover for fixing the position of the movable pulley protective cover.

[0015] Furthermore, in a preferred embodiment of the present invention, the first steering fixed pulley group, the second steering fixed pulley group, the third steering fixed pulley group and the fourth steering fixed pulley group include: a fixed pulley fixing structure arranged on the lifting trolley frame; a fixed pulley bracket arranged on the fixed pulley fixing structure; and a fixed pulley wheel body embedded in the fixed pulley bracket.

[0016] Furthermore, in a preferred embodiment of the present invention, the first deflection fixed pulley set, the second deflection fixed pulley set, the third deflection fixed pulley set and the fourth deflection fixed pulley set include at least one fixed pulley body.

[0017] Furthermore, in a preferred embodiment of the present invention, the first wire rope fixing device, the second wire rope fixing device, the third wire rope fixing device and the fourth wire rope fixing device include: a sliding groove arranged on the sling mechanism; a wire rope fixing base for fixing the wire rope; and a base boss arranged on the wire rope fixing base and embedded in the sliding groove.

[0018] Furthermore, in a preferred embodiment of the present invention, the sling mechanism includes: a sling body; a swing pin opening and closing mechanism disposed on the sling body and located at a rectangular right angle; and a sling locking device disposed on the sling body and used to adjust the swing pin opening and closing mechanism.

[0019] Furthermore, in a preferred embodiment of the present invention, the swing pin opening and closing mechanism includes: a rotating connecting rod; a locking head arranged at the bottom end of the rotating connecting rod; an adjusting end arranged at the top end of the rotating connecting rod; and the swing pin opening and closing mechanism is installed on the sling mechanism through a fixing nut.

[0020] Furthermore, in a preferred embodiment of the present invention, the sling locking device includes: a fixed support frame arranged on the sling mechanism; a rotating arm arranged on the fixed support frame; a slewing bearing seat arranged on the fixed support frame; a fixed shaft arranged on the slewing bearing seat and connected to the rotating arm; a transmission structure connected to the rotating arm; an adjustment plate arranged at the end of the transmission structure; and the adjustment plate is used to drive the adjustment end to rotate.

[0021] A crane anti-sway lifting mechanism provided by an embodiment of the present invention comprises: a lifting trolley frame; a sling mechanism located below the lifting trolley frame, the sling mechanism being used to lift a container, the overhead projection of the sling mechanism being in a first rectangular shape, the first rectangular shape being divided into four coordinate quadrants according to the quadrant quartering method; a first drum mechanism and a second drum mechanism being arranged on the lifting trolley frame and being arranged opposite to each other; the first drum mechanism being located on the boundary between the first quadrant and the fourth quadrant, and the second drum mechanism being located on the boundary between the second quadrant and the third quadrant; a first steering fixed pulley block, a second steering fixed pulley block, a third steering fixed pulley block and a fourth steering fixed pulley block being arranged on the lifting trolley frame and respectively located in the four coordinate quadrants; a first steering movable pulley block, a second steering movable pulley block, a third steering movable pulley block and a fourth steering movable pulley block being arranged on the sling mechanism and respectively located in the four coordinate quadrants; a first wire rope fixing device, a second wire rope fixing device, a third wire rope fixing device and a fourth wire rope fixing device being arranged on the sling mechanism and respectively located in the four coordinate quadrants and a fourth wire rope fixing device; a first wire rope and a fourth wire rope wound in the first drum mechanism; a second wire rope and a third wire rope wound in the second drum mechanism; wherein, the first wire rope is connected to the third wire rope fixing device in the third quadrant from the first drum mechanism, sequentially through the first deflection movable pulley group and the first deflection fixed pulley group in the first quadrant; the fourth wire rope is connected to the second wire rope fixing device in the second quadrant from the first drum mechanism, sequentially through the fourth deflection movable pulley group and the fourth deflection fixed pulley group in the fourth quadrant; the second wire rope is connected to the fourth wire rope fixing device in the fourth quadrant from the second drum mechanism, sequentially through the second deflection movable pulley group and the second deflection fixed pulley group in the second quadrant; the third wire rope is connected to the first wire rope fixing device in the first quadrant from the second drum mechanism, sequentially through the third deflection movable pulley group and the third deflection fixed pulley group in the third quadrant.

[0022] Among them, the steel wire ropes are located in different vertical planes and are cross-arranged when projected on the same plane, forming multiple mutually restraining forces to offset the lateral movement trend during the lifting process and achieve anti-sway; the symmetrical and cross-arrangement increases the stability of the mechanism and simplifies the structure, and anti-sway lifting can be achieved without an external system. Compared with the prior art, the crane anti-sway lifting mechanism provided by the embodiment of the present invention has a simple structure and strong working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 A schematic diagram of a crane anti-sway hoisting mechanism provided by an embodiment of the present invention;

[0025] Figure 2 It is a structural schematic diagram of an embodiment of a crane anti-sway hoisting mechanism involved in an embodiment of the present invention;

[0026] Figure 3 A side view of an embodiment of a crane anti-sway hoisting mechanism according to an embodiment of the present invention;

[0027] Figure 4 It is a structural schematic diagram of a first reel mechanism and a second reel mechanism involved in an embodiment of the present invention;

[0028] Figure 5 It is a structural schematic diagram of a first steering movable pulley block involved in an embodiment of the present invention;

[0029] Figure 6 It is a structural schematic diagram of a first steering fixed pulley block involved in an embodiment of the present invention;

[0030] Figure 7 It is a structural schematic diagram of a first steel wire rope fixing device involved in an embodiment of the present invention;

[0031] Figure 8 It is a structural schematic diagram of a sling locking device and a swing pin opening and closing mechanism involved in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] like Figures 1 to 8As shown, an embodiment of the present invention provides a crane anti-sway lifting mechanism, comprising: 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, the top projection of the sling mechanism 2 is a first rectangular shape, and the first rectangular shape is divided into four coordinate quadrants according to the quadrant quartering method; a first reel mechanism 301 and a second reel mechanism 302 arranged on the lifting trolley frame 1 and arranged oppositely; the first reel mechanism 301 is located on the boundary of the first quadrant and the fourth quadrant, and the second reel mechanism 302 is located on the boundary of the second quadrant and the third quadrant; The first steering fixed pulley group 601, the second steering fixed pulley group 602, the third steering fixed pulley group 603 and the fourth steering fixed pulley group 604 are arranged on the frame 1 and are respectively located in the four quadrants of the coordinates; the first steering movable pulley group 501, the second steering movable pulley group 502, the third steering movable pulley group 503 and the fourth steering movable pulley group 504 are arranged on the hoisting device mechanism 2 and are respectively located in the four quadrants of the coordinates; the first wire rope fixing device 701, the second wire rope fixing device 702, the third wire rope fixing device 703 and the fourth wire rope fixing device 704 are arranged on the hoisting device mechanism 2 and are respectively located in the four quadrants of the coordinates 04; the first steel wire rope 401 and the fourth steel wire rope 404 wound up in the first drum mechanism 301; the second steel wire rope 402 and the third steel wire rope 403 wound up in the second drum mechanism 302; wherein, the first steel wire rope 401 starts from the first drum mechanism 301, passes through the first deflection movable pulley set 501 and the first deflection fixed pulley set 601 in the first quadrant, and is connected to the third steel wire rope fixing device 703 in the third quadrant; the fourth steel wire rope 404 starts from the first drum mechanism 301, passes through the fourth deflection movable pulley set 504 and the fourth deflection fixed pulley set 601 in the fourth quadrant, and is connected to the third steel wire rope fixing device 703 in the third quadrant. The fourth diverting fixed pulley group 604 is connected to the second wire rope fixing device 702 in the second quadrant; the second wire rope 402 starts from the second drum mechanism 302, passes through the second diverting movable pulley group 502 and the second diverting fixed pulley group 602 in the second quadrant, and is connected to the fourth wire rope fixing device 704 in the fourth quadrant; the third wire rope 403 starts from the second drum mechanism 302, passes through the third diverting movable pulley group 503 and the third diverting fixed pulley group 603 in the third quadrant, and is connected to the first wire rope fixing device 701 in the first quadrant.

[0038] It should be noted that, from the top projection direction of the hoisting mechanism 2, the first rectangular shape is used as the center for quadrant division to obtain the coordinate four quadrants; from the top projection direction of the hoisting mechanism 2, the first diverting fixed pulley group 601, the first diverting movable pulley group 501 and the first wire rope fixing device 701 are located in the first quadrant of the coordinate four quadrants; the second diverting fixed pulley group 602, the second diverting movable pulley group 502 and the second wire rope fixing device 702 are located in the second quadrant of the coordinate four quadrants; the third diverting fixed pulley group 603, the third diverting movable pulley group 503 and the third wire rope fixing device 703 are located in the third quadrant of the coordinate four quadrants; the fourth diverting fixed pulley group 604, the fourth diverting movable pulley group 504 and the fourth wire rope fixing device 704 are located in the fourth quadrant of the coordinate four quadrants.

[0039] Among them, the steel wire ropes are located in different vertical planes and are cross-arranged when projected on the same plane, forming multiple mutually restraining forces to offset the lateral movement trend during the lifting process and achieve anti-sway; the symmetrical and cross-arrangement increases the stability of the mechanism and simplifies the structure, and anti-sway lifting can be achieved without an external system. Compared with the prior art, the crane anti-sway lifting mechanism provided by the embodiment of the present invention has a simple structure and strong working stability.

[0040] Specifically, in an embodiment of the present invention, the first diverting movable pulley set 501 is embedded in the first movable pulley groove 201 of the sling mechanism 2 in the first quadrant; the second diverting movable pulley set 502 is embedded in the second movable pulley groove 202 of the sling mechanism 2 in the second quadrant; the third diverting movable pulley set 503 is embedded in the third movable pulley groove 203 of the sling mechanism 2 in the third quadrant; the fourth diverting movable pulley set 504 is embedded in the fourth movable pulley groove 204 of the sling mechanism 2 in the fourth quadrant.

[0041] Among them, through the cooperation between the movable pulley and the movable pulley groove, flexible disassembly is achieved, while the shaking of the movable pulley is limited, thereby improving the stability and flexibility of the crane.

[0042] Specifically, in the embodiment of the present invention, the first steering movable pulley group 501, the second steering movable pulley group 502, the third steering movable pulley group 503 and the fourth steering movable pulley group 504 include: a movable pulley body 511 embedded in the movable pulley groove; a lubricating oil channel 561 arranged inside the movable pulley body 511; an oil pump plug 551 arranged at the outlet of the lubricating oil channel 561; a movable pulley fixing structure 541 arranged on the central axis of the movable pulley body 511; a rolling bearing 571 arranged on the central axis of the movable pulley body 511; and a limiter 581 arranged between adjacent rolling bearings 571.

[0043] Among them, when the crane is lifting or lowering, the wire rope drives the movable pulley body 511 to rotate through the action of the drum mechanism. At this time, the lubricant in the lubricating oil channel 561 is squeezed out through the oil pump plug 551 to lubricate the inside of the movable pulley body 511 to ensure its smooth operation; the movable pulley fixing structure 541 firmly installs the movable pulley body 511 on the central axis, and the rolling bearing 571 allows the movable pulley body 511 to rotate freely. At the same time, the limiter 581 prevents the relative movement between adjacent rolling bearings 571, ensuring the stability and reliability of the entire system. Since the movable pulley block is embedded in the sling mechanism 2 and is connected to the fixed pulley block on the lifting trolley frame 1 through the wire rope, this layout not only makes the force transmission more uniform, but also effectively offsets the lateral swing through the cross-arranged wire rope paths, thereby significantly reducing the shaking of the sling and the cargo it carries during the lifting or lowering process, and improving the stability and operating efficiency of the crane during the lifting process.

[0044] Specifically, in the embodiment of the present invention, the first steering movable pulley group 501, the second steering movable pulley group 502, the third steering movable pulley group 503 and the fourth steering movable pulley group 504 further include: a movable pulley protective cover 521 arranged on the outer surface of the movable pulley body 511 for protecting the movable pulley body 511; and a protective cover fixing structure 531 arranged on the movable pulley protective cover 521 for fixing the position of the movable pulley protective cover 521.

[0045] The movable pulley protective cover 521 protects the movable pulley body 511 from the external environment, prevents dust, rainwater and other impurities from entering, reduces wear and prolongs the service life. The protective cover fixing structure 531 ensures the stability of the protective cover to avoid displacement or falling off during operation, and ensures that the crane anti-sway hoisting mechanism can operate efficiently and smoothly.

[0046] Specifically, in an embodiment of the present invention, the first steering fixed pulley group 601, the second steering fixed pulley group 602, the third steering fixed pulley group 603 and the fourth steering fixed pulley group 604 include: a fixed pulley fixing structure 611 arranged on the lifting trolley frame 1; a fixed pulley bracket 621 arranged on the fixed pulley fixing structure 611; and a fixed pulley wheel body 631 embedded in the fixed pulley bracket 621.

[0047] Specifically, in the embodiment of the present invention, the first steering fixed pulley set 601 , the second steering fixed pulley set 602 , the third steering fixed pulley set 603 and the fourth steering fixed pulley set 604 include at least one fixed pulley body 631 .

[0048] Among them, the fixed pulley fixing structure 611 provides a stable foundation, the fixed pulley bracket 621 supports and positions the fixed pulley wheel body 631, and the fixed pulley wheel body 631 changes the direction of the wire rope so that the wire rope can continue to extend downward to the hoisting device mechanism 2 and be fixed by the second wire rope fixing device 702.

[0049] Specifically, in an embodiment of the present invention, the first wire rope fixing device 701, the second wire rope fixing device 702, the third wire rope fixing device 703 and the fourth wire rope fixing device 704 include: a sliding groove 721 arranged on the sling mechanism 2; a wire rope fixing base 711 for fixing the wire rope; and a base boss 731 arranged on the wire rope fixing base 711 and embedded in the sliding groove 721.

[0050] Among them, the base boss 731 and the sliding groove 721 cooperate to position the wire rope fixing base 711, so that the wire rope can move in a small range to adapt to various dynamic changes in the working process, alleviate the additional stress caused by uneven weight distribution of the hoisted object or external environmental factors, thereby reducing the wear on the wire rope and its fixing point and extending its service life.

[0051] Specifically, in an embodiment of the present invention, the sling mechanism 2 includes: a sling body 205; a swing pin opening and closing mechanism 206 disposed on the sling body 205 and located at a rectangular right angle position; and a sling locking device 207 disposed on the sling body 205 and used to adjust the swing pin opening and closing mechanism 206.

[0052] Specifically, in an embodiment of the present invention, the swing pin opening and closing mechanism 206 includes: a rotating connecting rod 216; a locking head 226 arranged at the bottom end of the rotating connecting rod 216; an adjusting end 236 arranged at the top end of the rotating connecting rod 216; and the swing pin opening and closing mechanism 206 is installed on the sling mechanism 2 through a fixing nut 246.

[0053] Among them, the pin opening and closing mechanism 206 is installed on the sling mechanism 2 through a fixing nut 246, and the lock head 226 is used to connect with the lock hole on the container. When the lock head penetrates into the lock hole and rotates a certain angle, the connection between the sling and the container is completed. By rotating the adjustment end 236 and driven by the connecting rod 216, the lock head 226 rotates.

[0054] Specifically, in an embodiment of the present invention, the sling locking device 207 includes: a fixed support frame 227 arranged on the sling mechanism 2; a rotating arm 217 arranged on the fixed support frame 227; a slewing bearing seat 237 arranged on the fixed support frame 227; a fixed shaft 247 arranged on the slewing bearing seat 237 and connected to the rotating arm 217; a transmission structure 257 connected to the rotating arm 217; an adjustment plate 267 arranged at the end of the transmission structure 257; the adjustment plate 267 is used to drive the adjustment end 236 to rotate.

[0055] Among them, the rotating arm 217 is set on the slewing bearing seat 237 through the fixed shaft 247, and the rotating arm 217 can rotate around the fixed shaft 247; one end of the rotating arm 217 is connected to the adjustment plate 267 through the transmission structure 257 to realize the control of the rotation of the adjustment end 236, thereby realizing the control of the rotation angle of the lock.

[0056] More specifically, in the embodiment of the present invention, the first reel mechanism 301 and the second reel mechanism 302 are specifically a single four-link reel mechanism or two double-link reel mechanisms.

[0057] To be more specific, the object of the present invention is to provide a crane anti-sway lifting mechanism, which improves the lifting efficiency by providing a stable working condition of the lifting device to prevent the lifting device from swinging in the direction of the trolley and / or the direction of the trolley running.

[0058] In the Chinese invention patent with the authorization announcement number CN204474156U, a container spreader anti-sway mechanism is disclosed. The mechanism includes not only a lifting mechanism, but also a set of anti-sway mechanism, which is composed of four sets of motors, reducers, brakes, drum mechanisms, pulleys and wire ropes. The wire rope drum mechanism in the anti-sway mechanism is connected to the guide pulley and the spreader frame through the anti-sway wire rope, and the spreader frame is fixedly connected to the spreader. Thereby, the swing of the container spreader and the container it carries in the running direction of the trolley and / or the running direction of the large vehicle is suppressed. Compared with the traditional solution that requires the additional arrangement of an independent anti-sway system, this patent achieves the same anti-sway effect by changing the layout of the wire rope, thereby saving costs. The design of the movable pulley realizes the multiplier operation of the lifting mechanism, so that the required pulling force is smaller, thereby reducing the torque requirement of the reducer, and further reducing the cost.

[0059] The technical solution of the present invention is a crane anti-sway lifting mechanism, comprising a lifting trolley frame, a sling, a drum mechanism and a wire rope winding group. The drum mechanism is arranged on the lifting trolley frame in the transverse direction of the sling, and the wire rope winding group is composed of a movable pulley fixed on the sling and a fixed pulley fixed on the lifting trolley frame, wherein the fixed pulley has a certain angle offset relative to the running direction of the trolley. After the wire rope is drawn out from the drum mechanism, it passes around the movable pulley and the fixed pulley in turn, and is finally fixed on the sling.

[0060] Specifically, the anti-sway lifting mechanism of the crane includes a wire rope, a movable pulley, a fixed pulley and a wire rope fixing device. For each set of wire rope winding paths, it can be divided into three sections: the first section extends from the drum mechanism to the movable pulley; the second section extends from the movable pulley to the fixed pulley; the third section is connected from the fixed pulley to the wire rope fixing device on the sling. The wire rope is led out from the drum mechanism and directly bypasses the movable pulley set on the sling mechanism, then goes up and bypasses the fixed pulley set on the lifting trolley frame, and finally fixed on the wire rope fixing device. By changing the layout of the third section of the wire rope, the mechanism can effectively prevent the sling from shaking in both the traveling directions of the crane trolley and the trolley. Without adding an additional anti-sway device or increasing the number of drum mechanisms, the present invention can achieve a stable and safe working state of the container sling only by optimizing the layout of the third section of the wire rope, thereby improving the overall work efficiency.

[0061] 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 crane anti-sway lifting mechanism, 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; The top projection of the sling mechanism (2) is in a first rectangular shape, and the first rectangular shape is divided into four coordinate quadrants according to the quadrant quartering method; A first reel mechanism (301) and a second reel mechanism (302) are arranged on the lifting trolley frame (1) and are arranged opposite to each other; the first reel mechanism (301) is located at the boundary between the first quadrant and the fourth quadrant, and the second reel mechanism (302) is located at the boundary between the second quadrant and the third quadrant; A first steering fixed pulley group (601), a second steering fixed pulley group (602), a third steering fixed pulley group (603) and a fourth steering fixed pulley group (604) are arranged on the lifting trolley frame (1) and are respectively located in the four quadrants of the coordinate system; A first diverting movable pulley group (501), a second diverting movable pulley group (502), a third diverting movable pulley group (503) and a fourth diverting movable pulley group (504) are arranged on the sling mechanism (2) and are respectively located in the four quadrants of the coordinate system; A first steel wire rope fixing device (701), a second steel wire rope fixing device (702), a third steel wire rope fixing device (703) and a fourth steel wire rope fixing device (704) are arranged on the sling mechanism (2) and are respectively located in the four quadrants of the coordinate system; a first steel wire rope (401) and a fourth steel wire rope (404) wound in the first reel mechanism (301); a second steel wire rope (402) and a third steel wire rope (403) wound in the second reel mechanism (302); Wherein, the first steel wire rope (401) starts from the first drum mechanism (301), passes through the first deflection movable pulley group (501) and the first deflection fixed pulley group (601) in the first quadrant, and is connected to the third steel wire rope fixing device (703) in the third quadrant; The fourth steel wire rope (404) starts from the first drum mechanism (301) and passes through the fourth diverting movable pulley set (504) and the fourth diverting fixed pulley set (604) in the fourth quadrant in sequence to be connected to the second steel wire rope fixing device (702) in the second quadrant; The second steel wire rope (402) starts from the second drum mechanism (302) and passes through the second deflection movable pulley set (502) and the second deflection fixed pulley set (602) in the second quadrant, and is connected to the fourth steel wire rope fixing device (704) in the fourth quadrant; The third steel wire rope (403) starts from the second drum mechanism (302) and is connected to the first steel wire rope fixing device (701) in the first quadrant through the third diverting movable pulley group (503) and the third diverting fixed pulley group (603) in the third quadrant.

2. The crane anti-sway hoisting mechanism according to claim 1, characterized in that: The first deflection movable pulley group (501) is embedded in the first movable pulley groove (201) of the sling mechanism (2) in the first quadrant; The second deflection movable pulley set (502) is embedded in the second movable pulley groove (202) of the sling mechanism (2) in the second quadrant; The third diverting movable pulley group (503) is embedded in the third movable pulley groove (203) of the sling mechanism (2) in the third quadrant; The fourth diverting movable pulley set (504) is embedded in the fourth movable pulley groove (204) of the sling mechanism (2) in the fourth quadrant.

3. The anti-sway hoisting mechanism of a crane according to claim 2, characterized in that: The first diverting movable pulley set (501), the second diverting movable pulley set (502), the third diverting movable pulley set (503) and the fourth diverting movable pulley set (504) include: A movable pulley body (511) embedded in the corresponding movable pulley groove; A lubricating oil passage (561) disposed inside the movable pulley body (511); An oil pump plug (551) disposed at the outlet of the lubricating oil passage (561); A movable pulley fixing structure (541) arranged on the central axis of the movable pulley body (511); A rolling bearing (571) disposed on the central axis of the movable pulley body (511); A stopper (581) is arranged between adjacent rolling bearings (571).

4. The crane anti-sway hoisting mechanism according to claim 3 is characterized in that: The first diverting movable pulley set (501), the second diverting movable pulley set (502), the third diverting movable pulley set (503) and the fourth diverting movable pulley set (504) further include: A movable pulley protection cover (521) disposed on the outer surface of the movable pulley body (511) and used to protect the movable pulley body (511); A protective cover fixing structure (531) is arranged on the movable pulley protective cover (521) and is used to fix the position of the movable pulley protective cover (521).

5. The crane anti-sway hoisting mechanism according to claim 1, characterized in that: The first deflection fixed pulley set (601), the second deflection fixed pulley set (602), the third deflection fixed pulley set (603) and the fourth deflection fixed pulley set (604) include: A fixed pulley fixing structure (611) arranged on the lifting trolley frame (1); A fixed pulley bracket (621) arranged on the fixed pulley fixing structure (611); A fixed pulley body (631) is embedded in the fixed pulley bracket (621).

6. The anti-sway hoisting mechanism of a crane according to claim 5, characterized in that: The first deflection fixed pulley set (601), the second deflection fixed pulley set (602), the third deflection fixed pulley set (603) and the fourth deflection fixed pulley set (604) at least include one fixed pulley wheel body (631).

7. The anti-sway hoisting mechanism of a crane according to claim 6, characterized in that: The first steel wire rope fixing device (701), the second steel wire rope fixing device (702), the third steel wire rope fixing device (703) and the fourth steel wire rope fixing device (704) include: A sliding groove (721) provided on the sling mechanism (2); A steel wire rope fixing base (711) for fixing the steel wire rope (4); A base boss (731) is arranged on the wire rope fixing base (711) and is embedded in the sliding groove (721).

8. The anti-sway hoisting mechanism of a crane according to claim 1, characterized in that: The sling mechanism (2) comprises: A sling body (205); A rotating pin opening and closing mechanism (206) disposed on the sling body (205) and located at a right angle to the rectangle; A hanger locking device (207) is arranged on the hanger body (205) and is used to adjust the swing pin opening and closing mechanism (206).

9. The crane anti-sway hoisting mechanism according to claim 8, characterized in that: The transfer opening and closing mechanism (206) comprises: Rotating the connecting rod (216); A lock head (226) disposed at the bottom end of the rotating connecting rod (216); An adjustment end (236) disposed at the top end of the rotating connecting rod (216); The swing pin opening and closing mechanism (206) is mounted on the hanger mechanism (2) via a fixing nut (246).

10. The anti-sway hoisting mechanism of a crane according to claim 9, characterized in that: The sling locking device (207) comprises: A fixed support frame (227) arranged on the sling mechanism (2); A rotating arm (217) disposed on the fixed support frame (227); A slewing bearing seat (237) disposed on the fixed support frame (227); A fixed shaft (247) disposed on the slewing bearing seat (237) and connected to the rotating arm (217); a transmission structure (257) connected to the rotating arm (217); an adjustment plate (267) disposed at the end of the transmission structure (257); The adjustment plate (267) is used to drive the adjustment end (236) to rotate.

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