Lifting device and quay crane
By setting multiple pulleys at intervals on the shelves and adjusting the rope path, the problem of large shaking of the shelves is solved, and the stability of the shelves is improved, ensuring that the shelves are accurately grasped and placed by the shelves.
Patent Information
- Application Number
- CN202422400696.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing shore bridge slings shake greatly during the work process, resulting in the inability to quickly reduce the shaking range, affecting the accurate grasp and placement of the box by the sling.
A plurality of pulleys are arranged at intervals on the sling rack, respectively arranged in different directions on both center sides. The lifting ropes on the inlet and outgoing sides of the pulley are at predetermined angles, and a complex winding path is formed by the steering wheel and the guide wheel to enhance stability.
The anti-shaking effect of the spreader being put on the horizontal plane is improved, the stability of the spreader being put on the shelf is enhanced, the shaking is reduced, and the operation accuracy is improved.
Smart Images
Figure CN223117915U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lifting, in particular to a hoisting device and a quay crane. Background Art
[0002] At present, most quay cranes are arranged with eight groups of pulleys on the trolley assembly and four groups of pulleys on the upper frame of the spreader. The four groups of pulleys are distributed on the left and right sides of the upper frame of the spreader. Since the included angle of the steel wire ropes connecting the pulleys on the trolley assembly and the pulleys on the upper frame of the spreader is limited, when the trolley brakes during forward movement, the upper frame of the spreader shakes greatly; at the same time, there is almost no anti-sway effect in the left and right directions of the trolley assembly. Especially when the driver needs to operate the whole quay crane to move left and right point by point in order to accurately grab and release the container with the spreader, this will cause the whole spreader system to shake greatly, resulting in the inability to reduce the shaking range in a short time to achieve container alignment with the spreader. Summary of the Utility Model
[0003] The utility model provides a hoisting device to solve the problem of large shaking of the existing upper frame of the spreader during operation.
[0004] The utility model provides a hoisting device, including:
[0005] The upper frame of the spreader, on which a plurality of pulleys are arranged. Two of the pulleys are spaced apart in at least two different directions, and the two pulleys in the same direction are respectively arranged on both sides of the center of the upper frame of the spreader;
[0006] The trolley, which is located above the upper frame of the spreader;
[0007] The steering wheel component, which is arranged on the trolley;
[0008] The drum component, around which a lifting rope is wound. The lifting rope output by the drum component is wound around the steering wheel component and the pulley.
[0009] According to the hoisting device provided by the utility model, the lifting ropes on the rope inlet side and the rope outlet side of each pulley form a predetermined included angle.
[0010] According to the hoisting device provided by the utility model, two first pulleys are arranged on the upper frame of the spreader along the movement direction of the trolley, and two second pulleys are arranged on the upper frame of the spreader along the direction perpendicular to the movement direction of the trolley.
[0011] According to a hoisting device provided by the present utility model, a first lifting rope is wound around the drum component. The steering wheel component includes a first pulley assembly, a second pulley assembly, a third pulley assembly and a fourth pulley assembly. One end of the first lifting rope sequentially bypasses the first pulley assembly, one of the first pulleys and the second pulley assembly and then is wound around the drum component. The other end of the first lifting rope sequentially bypasses the third pulley assembly, one of the second pulleys and the fourth pulley assembly and then is wound around the drum component.
[0012] According to a hoisting device provided by the present utility model, the first pulley assembly includes a first guide wheel and a first redirecting wheel. The first guide wheel and the first redirecting wheel are spaced apart on one side above one of the first pulleys. The second pulley assembly includes a second guide wheel and a second redirecting wheel. The second guide wheel and the second redirecting wheel are spaced apart on the other side above one of the first pulleys. One end of the first lifting rope sequentially bypasses the first redirecting wheel, the first guide wheel, one of the first pulleys, the second guide wheel and the second redirecting wheel and then is wound around the drum component.
[0013] According to a hoisting device provided by the present utility model, the third pulley assembly includes a third guide wheel and two third redirecting wheels. The third guide wheel is located on one side above one of the second pulleys, and the two third redirecting wheels are arranged at intervals along the length direction of the drum component. The fourth pulley assembly includes a fourth guide wheel, and the fourth guide wheel is located on the other side above one of the second pulleys. The other end of the first lifting rope sequentially bypasses the two third redirecting wheels, the third guide wheel, one of the second pulleys and the fourth guide wheel and then is wound around the drum component.
[0014] According to a hoisting device provided by the present utility model, a second lifting rope is further wound around the drum component. The steering wheel component further includes a fifth pulley assembly, a sixth pulley assembly, a seventh pulley assembly and an eighth pulley assembly. One end of the second lifting rope sequentially bypasses the fifth pulley assembly, the other one of the first pulleys and the sixth pulley assembly and then is wound around the drum component. The other end of the second lifting rope sequentially bypasses the seventh pulley assembly, the other one of the second pulleys and the eighth pulley assembly and then is wound around the drum component.
[0015] According to a hoisting device provided by the present utility model, the fifth pulley assembly includes a fifth guide pulley and a fifth redirecting pulley. The fifth guide pulley and the fifth redirecting pulley are spaced apart and arranged on one side above another first pulley. The sixth pulley assembly includes a sixth guide pulley and a sixth redirecting pulley. The sixth guide pulley and the sixth redirecting pulley are spaced apart and arranged on the other side above another first pulley. One end of the second hoisting rope is wound around the drum component after successively passing around the fifth redirecting pulley, the fifth guide pulley, another first pulley, the sixth guide pulley, and the sixth redirecting pulley.
[0016] According to a hoisting device provided by the present utility model, the seventh pulley assembly includes a seventh guide pulley and two seventh redirecting pulleys. The seventh guide pulley is arranged on one side above another second pulley. The two seventh redirecting pulleys are arranged at intervals along the length direction of the drum component. The eighth pulley assembly includes an eighth guide pulley. The eighth guide pulley is arranged on the other side above another second pulley. The other end of the second hoisting rope is wound around the drum component after successively passing around the two seventh redirecting pulleys, the seventh guide pulley, another second pulley, and the eighth guide pulley.
[0017] The present utility model further provides a quay crane, including a girder and the hoisting device described in any one of the above. The hoisting device is arranged on the girder.
[0018] The hoisting device provided by the present utility model greatly improves the anti-sway effect of the upper frame of the spreader in at least two directions on the horizontal plane by arranging two pulleys at intervals in at least two different directions, and the two pulleys are respectively arranged on both sides of the center of the upper frame of the spreader, thereby improving the stability of the upper frame of the spreader during operation. Description of the Drawings
[0019] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0020] Figure 1 It is a schematic structural diagram of the hoisting device provided by the present utility model.
[0021] Figure 2 It is a schematic connection diagram of the first pulley assembly, the second pulley assembly, the third pulley assembly, and the fourth pulley assembly provided by the present utility model.
[0022] Figure 3It is a schematic diagram of the connection relationship of the fifth pulley assembly, sixth pulley assembly, seventh pulley assembly and eighth pulley assembly provided by the present utility model.
[0023] Reference numerals:
[0024] 100, upper suspension frame; 110, first pulley; 120, second pulley; 200, steering wheel component; 210, first pulley assembly; 211, first guide pulley; 212, first redirecting pulley; 220, second pulley assembly; 221, second guide pulley; 222, second redirecting pulley; 230, third pulley assembly; 231, third guide pulley; 232, third redirecting pulley; 240, fourth pulley assembly; 250, fifth pulley assembly; 251, fifth guide pulley; 252, fifth redirecting pulley; 260, sixth pulley assembly; 261, sixth guide pulley; 262, sixth redirecting pulley; 270, seventh pulley assembly; 271, seventh guide pulley; 272, seventh redirecting pulley; 280, eighth pulley assembly; 300, drum component; 310, first lifting rope; 320, second lifting rope; 330, first drum; 340, second drum; 350, first fixed pulley assembly; 360, second fixed pulley assembly. Detailed implementation manners
[0025] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without making creative efforts fall within the scope of protection of the present utility model.
[0026] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0027] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0028] In the embodiments of the present utility model, unless otherwise clearly specified and defined, a first feature being "on" or "under" a second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, a first feature being "above", "over" and "on top of" a second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. A first feature being "under", "beneath" and "underneath" a second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0029] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0030] The following Figures 1 - 3 describes the specific structure and working principle of the hoisting device of the present utility model.
[0031] As Figure 1 shown, the hoisting device includes an upper frame 100 of the spreader, a trolley, a steering wheel assembly 200, and a drum assembly 300. The upper frame 100 of the spreader is provided with a plurality of pulleys, and two pulleys are spaced apart in at least two different directions, and the two pulleys in the same direction are respectively arranged on both sides of the center of the upper frame 100 of the spreader. The trolley is located above the upper frame 100 of the spreader, and the steering wheel assembly 200 is arranged on the trolley; the drum assembly 300 is wound with a lifting rope, and the lifting rope output by the drum assembly 300 is wound around the steering wheel assembly 200 and the pulleys.
[0032] The hoisting device provided by the present utility model greatly improves the anti-sway effect of the upper frame 100 of the spreader in at least two directions on the horizontal plane by arranging two pulleys at intervals in at least two different directions, and the two pulleys are respectively arranged on both sides of the center of the upper frame 100 of the spreader, thereby improving the stability of the upper frame 100 of the spreader during operation.
[0033] In an embodiment of the present utility model, the upper frame 100 of the spreader is rectangular, and one pulley is arranged near each side of the upper frame 100 of the spreader, that is, the upper frame 100 of the spreader is provided with four pulleys. The distances from the pulleys corresponding to the opposite two sides to the center of the upper frame 100 of the spreader are equal, which can ensure the force balance of the upper frame 100 of the spreader and improve the stability of the upper frame 100 of the spreader. Of course, the number of pulleys is not limited to this, and is specifically determined according to the shape of the upper frame 100 of the spreader.
[0034] In an embodiment of the present utility model, as Figure 2 shown, the lifting ropes on the rope inlet side and the rope outlet side of each pulley form a predetermined angle α. When the upper frame 100 of the spreader swings in the plane where the lifting ropes on the rope inlet side and the rope outlet side are located, since the lifting ropes on the rope inlet side and the rope outlet side are not parallel, the swinging rhythms of the lifting ropes on the rope inlet side and the rope outlet side are different, so that the swinging energies of the lifting ropes on both sides cancel each other out, thereby further enhancing the anti-sway effect. The larger the predetermined angle α, the stronger the anti-sway effect.
[0035] In an embodiment of the present utility model, as Figure 1 shown, the sizes of the four pulleys can be the same or different, and are specifically determined according to actual needs. Among the four pulleys, the two pulleys arranged at intervals along the length direction of the girder are denoted as the first pulleys 110, and one of the two first pulleys 110 is close to the water side and the other is close to the land side. The two pulleys arranged at intervals along the width direction of the girder are denoted as the second pulleys 120, and one of the two second pulleys 120 is close to the left side and the other is close to the right side. The upper frame 100 of the spreader is provided with two first pulleys 110 along the movement direction of the trolley, and the two first pulleys 110 are symmetrically arranged about the center of the upper frame 100 of the spreader. The upper frame 100 of the spreader is provided with two second pulleys 120 along the direction perpendicular to the movement direction of the trolley, and the two second pulleys 120 are symmetrically arranged about the center of the upper frame 100 of the spreader, and the connection line between the two first pulleys 110 is perpendicular to the connection line between the two second pulleys 120.
[0036] It should be noted here that in the present utility model, the left side refers to the side where the observer's left hand is located when facing the water side, and the right side refers to the side where the observer's right hand is located when facing the water side.
[0037] In an embodiment of the present utility model, a first lifting rope 310 is wound around a reel member 300. The steering wheel member 200 includes a first pulley assembly 210, a second pulley assembly 220, a third pulley assembly 230, and a fourth pulley assembly 240. One end of the first lifting rope 310 sequentially bypasses the first pulley assembly 210, a first pulley 110, and the second pulley assembly 220 and then is wound around the reel member 300. Specifically, as Figure 2 shown, one end of the first lifting rope 310 first bypasses the first pulley assembly 210, then bypasses the first pulley 110, and finally bypasses the second pulley assembly 220 and then is wound around the reel member 300.
[0038] The other end of the first lifting rope 310 sequentially bypasses the third pulley assembly 230, a second pulley 120, and the fourth pulley assembly 240 and then is wound around the reel member 300. Specifically, as Figure 2 shown, the other end of the first lifting rope 310 first bypasses the third pulley assembly 230, then bypasses the second pulley 120 on the right side, and finally bypasses the fourth pulley assembly 240 and then is wound around the reel member 300.
[0039] In an embodiment of the present utility model, as Figure 2 shown, the first pulley assembly 210 includes a first guide wheel 211 and a first redirecting wheel 212. Both the first guide wheel 211 and the first redirecting wheel 212 are rotationally matched with the trolley. The first guide wheel 211 and the first redirecting wheel 212 are spaced apart on one side above a first pulley 110, that is, the first guide wheel 211 and the first redirecting wheel 212 are spaced apart on the left side above the first pulley 110 near the land side. Among them, the first guide wheel 211 is vertically arranged, and the first redirecting wheel 212 is horizontally arranged.
[0040] The second pulley assembly 220 includes a second guide wheel 221 and a second redirecting wheel 222. The second guide wheel 221 and the second redirecting wheel 222 are spaced apart on the other side above a first pulley 110, that is, the second guide wheel 221 and the second redirecting wheel 222 are spaced apart on the right side above the first pulley 110 near the land side. Among them, the second guide wheel 221 is vertically arranged, and the second redirecting wheel 222 is horizontally arranged. One end of the first lifting rope 310 sequentially bypasses the first redirecting wheel 212, the first guide wheel 211, the first pulley 110 near the land side, the second guide wheel 221, and the second redirecting wheel 222 and then is wound around the reel member 300.
[0041] In an embodiment of the present utility model, as Figure 2As shown, the third pulley assembly 230 includes a third guide pulley 231 and two third redirecting pulleys 232. The third guide pulley 231 and the two third redirecting pulleys 232 are both rotationally engaged with the carriage. The third guide pulley 231 is located on one side above a second pulley 120, that is, the third guide pulley 231 is located on the water side above the second pulley 120 on the right. The two third redirecting pulleys 232 are located on the side of the third guide pulley 231 away from the drum assembly 300. The two third redirecting pulleys 232 are arranged at intervals along the length direction of the drum assembly 300, and the two third redirecting pulleys 232 are rotationally engaged with the girder, and the two third redirecting pulleys 232 have the same model.
[0042] The fourth pulley assembly 240 includes a fourth guide pulley, which is rotationally engaged with the carriage. The fourth guide pulley is located on the other side above a second pulley 120, that is, the fourth guide pulley is located on the water side above the second pulley 120 on the right. The other end of the first lifting rope 310 sequentially bypasses the two third redirecting pulleys 232, the third guide pulley 231, a second pulley 120, and the fourth guide pulley and then winds around the drum assembly 300.
[0043] In an embodiment of the present invention, the drum assembly 300 is further wound with a second lifting rope 320. The steering wheel assembly 200 further includes a fifth pulley assembly 250, a sixth pulley assembly 260, a seventh pulley assembly 270, and an eighth pulley assembly 280. One end of the second lifting rope 320 sequentially bypasses the fifth pulley assembly 250, another first pulley 110, and the sixth pulley assembly 260 and then winds around the drum assembly 300. Specifically, as Figure 3 shown, one end of the second lifting rope 320 first bypasses the fifth pulley assembly 250, then bypasses the first pulley 110 on the water side, and finally bypasses the sixth pulley assembly 260 and then winds around the drum assembly 300.
[0044] The other end of the second lifting rope 320 sequentially bypasses the seventh pulley assembly 270, another second pulley 120, and the eighth pulley assembly 280 and then winds around the drum assembly 300. Specifically, as Figure 3 shown, the other end of the second lifting rope 320 first bypasses the seventh pulley assembly 270, then bypasses the second pulley 120 on the left, and finally bypasses the eighth pulley assembly 280 and then winds around the drum assembly 300.
[0045] In an embodiment of the present invention, as Figure 3As shown, the fifth pulley assembly 250 includes a fifth guide pulley 251 and a fifth redirecting pulley 252. Both the fifth guide pulley 251 and the fifth redirecting pulley 252 are rotationally engaged with the trolley. The fifth guide pulley 251 and the fifth redirecting pulley 252 are spaced apart on one side above another first pulley 110, that is, the fifth guide pulley 251 and the fifth redirecting pulley 252 are spaced apart on the right side above the first pulley 110 close to the water side. Among them, the fifth guide pulley 251 is vertically arranged, and the fifth redirecting pulley 252 is horizontally arranged.
[0046] The sixth pulley assembly 260 includes a sixth guide pulley 261 and a sixth redirecting pulley 262. Both the sixth guide pulley 261 and the sixth redirecting pulley 262 are rotationally engaged with the trolley. The sixth guide pulley 261 and the sixth redirecting pulley 262 are spaced apart on the other side above another first pulley 110, that is, the sixth guide pulley 261 and the sixth redirecting pulley 262 are spaced apart on the left side above the first pulley 110 close to the water side. Among them, the sixth guide pulley 261 is vertically arranged, and the sixth redirecting pulley 262 is horizontally arranged. One end of the second lifting rope successively bypasses the fifth redirecting pulley 252, the fifth guide pulley 251, the first pulley 110 close to the water side, the sixth guide pulley 261 and the sixth redirecting pulley 262 and then winds around the drum assembly 300.
[0047] In an embodiment of the present utility model, as Figure 3 shown, the seventh pulley assembly 270 includes a seventh guide pulley 271 and two seventh redirecting pulleys 272. The seventh guide pulley 271 is vertically arranged. The seventh guide pulley 271 is rotationally engaged with the trolley. The seventh guide pulley 271 is arranged on one side above another second pulley 120, that is, the seventh guide pulley 271 is arranged on the water side above the left second pulley 120. The two seventh redirecting pulleys 272 are arranged at intervals along the length direction of the drum assembly 300. Both the two seventh redirecting pulleys 272 are horizontally arranged.
[0048] The eighth pulley assembly 280 includes an eighth guide pulley. The eighth guide pulley is rotationally engaged with the trolley. The eighth guide pulley is arranged on the other side above another second pulley 120, that is, the eighth guide pulley is arranged on the land side above the left second pulley 120. The eighth guide pulley is vertically arranged. The other end of the second lifting rope 320 successively bypasses the two seventh redirecting pulleys 272, the seventh guide pulley 271, another second pulley 120 and the eighth guide pulley and then winds around the drum assembly 300.
[0049] In an embodiment of the present utility model, as Figure 1As shown, the drum component 300 includes a first drum 330 and a second drum 340. The first drum 330 and the second drum 340 are arranged at intervals in sequence along the width direction of the girder, and the first drum 330 and the second drum 340 are coaxially arranged. The first drum 330 is located on the left side and is used for winding the first lifting rope 310. The second drum 340 is located on the right side and is used for winding the second lifting rope 320. The first drum 330 and the second drum 340 drive the upper frame 100 of the spreader to rise or fall through rotating in the same direction.
[0050] In an embodiment of the present invention, as Figure 1 shown, the hoisting device further includes a first fixed pulley assembly 350 and a second fixed pulley assembly 360. The first fixed pulley assembly 350 and the second fixed pulley assembly 360 are arranged at intervals along the length direction of the drum component 300 on the girder (not shown). The first fixed pulley assembly 350 includes two first fixed pulleys which are arranged at intervals along the length direction of the drum component 300. One end of the first lifting rope 310 bypasses the first fixed pulley on the right side and winds around the first drum 330, and the other end of the first lifting rope 310 bypasses the first fixed pulley on the left side and winds around the first drum 330. The first fixed pulley assembly 350 includes two second fixed pulleys which are arranged at intervals along the length direction of the drum component 300. One end of the first lifting rope 310 bypasses the first fixed pulley on the right side and winds around the first drum 330, and the other end of the first lifting rope 310 bypasses the first fixed pulley on the left side and winds around the first drum 330.
[0051] For the hoisting device provided by the present invention, by arranging two pulleys at intervals in at least two different directions, and the two pulleys are respectively arranged on both sides of the center of the upper frame 100 of the spreader, the anti-sway effect of the upper frame 100 of the spreader in at least two directions on the horizontal plane is greatly improved, and the stability of the upper frame 100 of the spreader during operation is improved.
[0052] The present invention also provides a quay crane, which includes a girder and the hoisting device described in any one of the above embodiments, and the hoisting device is arranged on the girder.
[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A hoisting device, characterized in that, Comprising: The upper frame of the spreader (100), multiple pulleys are provided on the upper frame of the spreader (100), two of the pulleys are spaced apart in at least two different directions, and the two pulleys in the same direction are respectively arranged on both sides of the center of the upper frame of the spreader (100); A trolley, the trolley is located above the upper frame of the spreader (100); A steering wheel component (200), the steering wheel component (200) is provided on the trolley; A drum component (300), a lifting rope is wound around the drum component (300), and the lifting rope output by the drum component (300) is wound around the steering wheel component (200) and the pulley.
2. The lifting device according to claim 1, characterized in that, The lifting rope on the rope inlet side of each pulley forms a predetermined angle with the lifting rope on the rope outlet side.
3. The hoisting device according to claim 1, characterized in that, Two first pulleys (110) are provided on the upper frame of the spreader (100) along the moving direction of the trolley, and two second pulleys (120) are provided on the upper frame of the spreader (100) along the direction perpendicular to the moving direction of the trolley.
4. The hoisting device according to claim 3, characterized in that, The drum component (300) is wound with a first lifting rope (310), the steering wheel component (200) includes a first pulley assembly (210), a second pulley assembly (220), a third pulley assembly (230) and a fourth pulley assembly (240), one end of the first lifting rope (310) sequentially bypasses the first pulley assembly (210), one of the first pulleys (110) and the second pulley assembly (220) and then is wound around the drum component (300), and the other end of the first lifting rope (310) sequentially bypasses the third pulley assembly (230), one of the second pulleys (120) and the fourth pulley assembly (240) and then is wound around the drum component (300).
5. The hoisting device according to claim 4, characterized in that, The first pulley assembly (210) includes a first guide wheel (211) and a first redirecting wheel (212), the first guide wheel (211) and the first redirecting wheel (212) are spaced apart on one side above one of the first pulleys (110); the second pulley assembly (220) includes a second guide wheel (221) and a second redirecting wheel (222), the second guide wheel (221) and the second redirecting wheel (222) are spaced apart on the other side above one of the first pulleys (110), and one end of the first lifting rope (310) sequentially bypasses the first redirecting wheel (212), the first guide wheel (211), one of the first pulleys (110), the second guide wheel (221) and the second redirecting wheel (222) and then is wound around the drum component (300).
6. The hoisting device according to claim 5, characterized in that, The third pulley assembly (230) includes a third guide pulley (231) and two third redirecting pulleys (232). The third guide pulley (231) is located on one side above one of the second pulleys (120), and the two third redirecting pulleys (232) are arranged at intervals along the length direction of the drum member (300). The fourth pulley assembly (240) includes a fourth guide pulley, which is located on the other side above one of the second pulleys (120). The other end of the first lifting rope (310) sequentially bypasses the two third redirecting pulleys (232), the third guide pulley (231), one of the second pulleys (120), and the fourth guide pulley and then winds around the drum member (300).
7. The hoisting device according to any one of claims 3 to 6, characterized in that, The drum member (300) also winds a second lifting rope (320). The steering wheel assembly (200) further includes a fifth pulley assembly (250), a sixth pulley assembly (260), a seventh pulley assembly (270), and an eighth pulley assembly (280). One end of the second lifting rope (320) sequentially bypasses the fifth pulley assembly (250), the other first pulley (110), and the sixth pulley assembly (260) and then winds around the drum member (300). The other end of the second lifting rope (320) sequentially bypasses the seventh pulley assembly (270), the other second pulley (120), and the eighth pulley assembly (280) and then winds around the drum member (300).
8. The lifting device according to claim 7, wherein The fifth pulley assembly (250) includes a fifth guide pulley (251) and a fifth redirecting pulley (252). The fifth guide pulley (251) and the fifth redirecting pulley (252) are spaced apart and arranged on one side above the other first pulley (110). The sixth pulley assembly (260) includes a sixth guide pulley (261) and a sixth redirecting pulley (262). The sixth guide pulley (261) and the sixth redirecting pulley (262) are spaced apart and arranged on the other side above the other first pulley (110). One end of the second lifting rope (320) sequentially bypasses the fifth redirecting pulley (252), the fifth guide pulley (251), the other first pulley (110), the sixth guide pulley (261), and the sixth redirecting pulley (262) and then winds around the drum member (300).
9. The hoisting device according to claim 7, characterized in that The seventh pulley assembly (270) includes a seventh guide pulley (271) and two seventh redirecting pulleys (272). The seventh guide pulley (271) is disposed on one side above the other second pulley (120). The two seventh redirecting pulleys (272) are arranged at intervals along the length direction of the drum member (300). The eighth pulley assembly (280) includes an eighth guide pulley, and the eighth guide pulley is disposed on the other side above the other second pulley (120). The other end of the second lifting rope (320) sequentially bypasses the two seventh redirecting pulleys (272), the seventh guide pulley (271), the other second pulley (120), and the eighth guide pulley and then winds around the drum member (300).
10. A quay crane, characterized in that, Comprising a girder and a lifting device according to any one of claims 1 to 9, the lifting device being provided on the girder.