A rope support system for a traversing quay crane

Abstract

This specification relates to the technical field of port equipment, and particularly to a rope support system for a traversing quay crane. The rope support system at least includes four rope support frames, an internal traction steel wire rope, an external traction steel wire rope, a sea-side redirecting pulley, and a land-side redirecting pulley. Two rope support frames are provided on the external trolley girder track on the outer side of each quay crane girder. The inner ends of the two rope support frames are connected by an internal traction steel wire rope; the outer ends of the two rope support frames are connected by an external traction steel wire rope. The two rope support frames on the outer side of each quay crane girder reciprocate on the external trolley girder track following the internal traction steel wire rope and the external traction steel wire rope. This specification will not interfere with the quay crane girder in terms of structure, ensuring the movement of the external trolley steel wire rope and the stable operation of the traversing quay crane.

Description

Technical Field

[0001] This specification relates to the technical field of port equipment, and particularly relates to a rope supporting system for a through-type quay crane. Background Art

[0002] The rapid development of the world economy has driven the rapid development of shipping logistics. The global container throughput has been increasing continuously, requiring ports to have higher handling efficiency. As a key handling equipment at the terminal, the container quay crane directly operates on the ship and plays an important role in the overall handling efficiency of the terminal. In related technologies, in order to improve the handling efficiency of the quay crane, the quay crane is changed from a layout form with an upper trolley to a layout form with both an upper trolley and an external trolley coexisting, that is, a through-type quay crane in which "the upper trolley and the external trolley transport containers simultaneously" is formed. Specifically, the tracks inside the two quay crane girders are for the reciprocating movement of the upper trolley, and the tracks outside the two quay crane girders are for the reciprocating movement of the inverted external trolley. This through-type quay crane structure greatly improves the transportation efficiency. Among them, the upper trolley needs to lift and move under the traction of the upper trolley hoisting wire rope and the upper trolley traveling wire rope, and the external trolley needs to lift and move under the traction of the external trolley hoisting wire rope and the external trolley traveling wire rope. All the above-mentioned wire ropes need to be supported by a rope supporting frame.

[0003] Currently, the rope supporting frame for the wire rope towing the upper trolley is that a cross beam is arranged on each of the inner tracks of the two quay crane girders, and a plurality of idler rollers are fixedly arranged on the cross beam, and the idler rollers are used to support the wire rope. However, the inventor found that the related technology at least has the following problems: For the wire rope towing the external trolley, since the external trolley is inverted on the outer tracks of the two quay crane girders, if the rope supporting frame for supporting the wire rope of the external trolley adopts the same fixed rope supporting frame structure as that of the upper trolley, it will interfere with the quay crane girder, affecting the movement of the wire rope towing the external trolley, and further affecting the stable operation of the quay crane.

[0004] Therefore, under the trend of the high-speed development of quay cranes, for the through-type quay crane, it is urgent to study a rope supporting system for the through-type quay crane to support the wire rope towing the external trolley. Summary of the Invention

[0005] The embodiments of this specification provide a rope supporting system for a through-type quay crane to partially solve the above problems existing in the prior art.

[0006] The embodiments of this specification adopt the following technical solutions:

[0007] A rope support system for a traversing quay crane provided in this specification. An external trolley girder track, a horizontally arranged external trolley girder top plate, and a vertically arranged external trolley girder vertical rod are provided on the outer side of the quay crane girder. The bottom end of the vertically arranged external trolley girder vertical rod is fixedly connected to the quay crane girder. The top end of the vertically arranged external trolley girder vertical rod is fixedly installed with a horizontally arranged external trolley girder top plate, and one side of the horizontally arranged external trolley girder top plate is fixedly connected to the quay crane girder. An external trolley girder track is laid on the horizontally arranged external trolley girder top plate, and the external trolley can move on the external trolley girder track. The rope support system at least includes four rope support frames, an internal towing steel wire rope, an external towing steel wire rope, a sea-side deflecting pulley, and a land-side deflecting pulley.

[0008] One sea-side deflecting pulley is provided at one end of the outer side of each quay crane girder, and one land-side deflecting pulley is provided at the other end. The sea-side deflecting pulley is close to the sea, and the land-side deflecting pulley is close to the land. An external towing steel wire rope is wound around the sea-side deflecting pulley and the land-side deflecting pulley.

[0009] Two rope support frames are provided on the external trolley girder track on the outer side of each quay crane girder. The proximal ends of the two rope support frames are connected by the internal towing steel wire rope, and one end of the internal towing steel wire rope is fixed to the quay crane girder, and the other end of the internal towing steel wire rope is also fixed to the quay crane girder; the distal ends of the two rope support frames are connected by the external towing steel wire rope, and one end of the external towing steel wire rope is fixed to one rope support frame, and the other end of the external towing steel wire rope is fixed to the other rope support frame.

[0010] The two rope support frames on the outer side of each quay crane girder reciprocate on the external trolley girder track following the internal towing steel wire rope and the external towing steel wire rope.

[0011] Optionally, the external trolley is arranged on the external trolley girder track between the two rope support frames on the outer side of each quay crane girder, and one end of the internal towing steel wire rope passes through the external trolley and is fixed to the quay crane girder.

[0012] Optionally, a towing pulley is further provided on the rope support frame. One end of the internal towing steel wire rope starts from the quay crane girder, winds around the towing pulley of one rope support frame, turns and then winds around the towing pulley of the other rope support frame, and is fixed to the quay crane girder after turning.

[0013] Optionally, the rope supporting frame includes a roller, a roller frame and roller wheels. The roller is horizontally arranged on the roller frame. The roller is used to support the hoisting wire rope of the moving external trolley and the traveling wire rope of the moving external trolley. At least two rotatable roller wheels are installed on one side of the roller frame close to the track of the external trolley girder, and the two rotatable roller wheels are both arranged on the track of the external trolley girder.

[0014] Optionally, a horizontally arranged anti-roller is further provided under the roller frame. The anti-roller is also arranged under the top plate of the external trolley girder, and the anti-roller can move along the lower surface of the top plate of the external trolley girder.

[0015] Optionally, the rope supporting system further includes a side beam, side rollers, a vertically arranged side roller connecting rod, and a plurality of side beam brackets above the track of the external trolley girder. The plurality of side beam brackets are equally spaced and arranged on the outside of the quay crane girder. The side beam is fixedly arranged under the side beam brackets, and the length of the side beam extends to the side beam brackets at both ends of the quay crane girder. The vertically arranged side roller connecting rod and the roller are arranged side by side on the roller frame; on the same horizontal plane, the distance between the vertically arranged side roller connecting rod and the quay crane girder is less than the distance between the roller and the quay crane girder. The top of the vertically arranged side roller connecting rod is provided with a vertically arranged side roller. The side roller is also arranged on the side of the side beam close to the quay crane girder, and the side roller can move along the side of the side beam close to the quay crane girder.

[0016] Optionally, the traction pulley is vertically arranged on the roller frame between the vertically arranged side roller connecting rod and the roller.

[0017] Optionally, a protective cover is further provided on the outer circumference of the roller. The protective cover is also arranged on the roller frame and does not interfere with the movement of the hoisting wire rope of the external trolley and the traveling wire rope of the external trolley.

[0018] At least one of the above technical solutions adopted in the embodiments of this specification can achieve the following beneficial effects: This system uses a rope supporting system formed by a plurality of movable rope supporting frames to support and tow the wire ropes of the external trolley. It is specially designed for the external trolley of the through-type quay crane. It will not interfere with the quay crane girder in terms of structure, ensuring the movement of the wire ropes of the external trolley, ensuring the stable operation of the through-type quay crane, and having a relatively low investment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of this specification, and constitute a part of this specification. The schematic embodiments of this specification and their descriptions are used to explain this specification and do not constitute an improper limitation of this specification. In the drawings:

[0020] Figure 1Schematic diagram of the installation position of the rope support frame in the rope support system for the traversing quay crane provided in the embodiments of this specification;

[0021] Figure 2 Schematic layout of the rope support system for the traversing quay crane and the external trolley girder track provided in the embodiments of this specification;

[0022] Figure 3 Front structure schematic diagram of the rope support frame in the rope support system for the traversing quay crane provided in the embodiments of this specification;

[0023] Figure 4 Side structure schematic diagram of the rope support frame in the rope support system for the traversing quay crane provided in the embodiments of this specification.

[0024] Meanings of the reference numerals: 1 - quay crane girder, 2 - upper trolley, 3 - external trolley, 4 - rope support frame, 41 - idler roller, 42 - idler roller frame, 43 - protective cover, 44 - idler roller wheel, 45 - side roller, 46 - anti-roller, 47 - traction pulley, 5 - external trolley girder track, 6 - external trolley girder top plate, 7 - external trolley girder vertical rod, 8 - external trolley hoisting wire rope, 9 - external trolley traveling wire rope, 10 - side beam support, 11 - side beam, 12 - internal traction wire rope, 13 - external traction wire rope, 14 - sea side redirecting pulley, 15 - land side redirecting pulley. Detailed implementation manners

[0025] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all the implementation manners consistent with this specification. Instead, they are merely examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.

[0026] The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this specification. The singular forms "a", "the", and "said" used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0027] It should be understood that although the terms first, second, third, etc. may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this specification, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0028] The following is a detailed description of the rope support system for a through-type quay crane of the present specification in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments and implementations can be combined with each other.

[0029] See also Figures 1 to 4 The embodiment of this specification provides a rope support system for a through-type quay crane, wherein the outer side of the quay crane beam 1 is provided with an external trolley beam track 5, a horizontally arranged external trolley beam top plate 6, and a vertically arranged external trolley beam vertical rod 7, the bottom end of the vertically arranged external trolley beam vertical rod 7 is fixedly connected to the quay crane beam 1, the top of the vertically arranged external trolley beam vertical rod 7 is fixedly installed with a horizontally arranged external trolley beam top plate 6, and one side of the horizontally arranged external trolley beam top plate 6 is fixedly connected to the quay crane beam 1, the horizontally arranged external trolley beam top plate 6 is paved with an external trolley beam track 5, and the external trolley 3 can move on the external trolley beam track 5. The rope support system includes at least four rope support frames 4, an internal traction wire rope 12, an external traction wire rope 13, a sea-side redirection pulley 14, and a land-side redirection pulley 15.

[0030] One end of the outer side of each quay crane beam 1 is provided with a sea-side redirecting pulley 14, and the other end is provided with a land-side redirecting pulley 15. The sea-side redirecting pulley 14 is close to the sea, and the land-side redirecting pulley 15 is close to the land. An external traction wire rope 13 is wound around the sea-side redirecting pulley 14 and the land-side redirecting pulley 15.

[0031] Two rope supporting frames 4 are provided on the external trolley beam rail 5 outside each quay crane beam 1, and the proximal ends of the two rope supporting frames 4 are connected by the internal traction steel wire rope 12, and one end of the internal traction steel wire rope 12 is fixed on the quay crane beam 1, and the other end of the internal traction steel wire rope 12 is also fixed on the quay crane beam 1; the distal ends of the two rope supporting frames 4 are connected by the external traction steel wire rope 13, and one end of the external traction steel wire rope 13 is fixed on one rope supporting frame 4, and the other end of the external traction steel wire rope 13 is fixed on the other rope supporting frame 4.

[0032] The two rope support frames 4 on the outer side of each quay crane girder 1 move back and forth on the outer trolley girder track 5 following the internal towing wire rope 12 and the external towing wire rope 13.

[0033] It should be noted that Figure 1 FIG. is a schematic diagram of the positions of the upper trolley 2, the outer trolley 3, the quay crane girder and the rope support frame 4. In this specification, the simple idler structure fixedly arranged in the prior art is improved, and a rope support system formed by four movable rope support frames is designed to support the wire rope for towing the outer trolley. Compared with the fixed idler structure, this structure uses less materials, is lighter in structure and lower in cost. Moreover, this rope support system is specially designed for the outer trolley of the traversing quay crane, and will not interfere with the quay crane girder in structure, ensuring the movement of the wire rope of the outer trolley, ensuring the stable operation of the traversing quay crane, and having a lower input cost.

[0034] Furthermore, the outer trolley 3 is arranged on the outer trolley girder track 5 between the two rope support frames 4 on the outer side of each quay crane girder 1, and one end of the internal towing wire rope 12 passes through the outer trolley 3 and is fixed on the quay crane girder 1.

[0035] Optionally, a towing pulley 47 is further provided on the rope support frame 4. One end of the internal towing wire rope 12 starts from the quay crane girder 1, winds around the towing pulley 47 of one rope support frame 4, the internal towing wire rope 12 turns and then winds around the towing pulley 47 of another rope support frame 4, and the internal towing wire rope 12 turns and is fixed on the quay crane girder 1, so that the two rope support frames 4 can run stably along the outer trolley girder track 5.

[0036] Optionally, the rope support frame 4 includes a roller 41, a roller frame 42 and roller wheels 44. The roller 41 is horizontally arranged on the roller frame 42, and the roller 41 is used to carry the lifting wire rope 8 of the moving outer trolley and the traveling wire rope 9 of the moving outer trolley. At least two rotatable roller wheels 44 are installed on one side of the roller frame 42 close to the outer trolley girder track 5, and the two rotatable roller wheels 44 are both arranged on the outer trolley girder track 5.

[0037] Optionally, a horizontal anti-roller 46 is further provided below the roller frame 42. The anti-roller 46 is also arranged below the top plate 6 of the outer trolley girder, and the anti-roller 46 can move along the lower surface of the top plate 6 of the outer trolley girder.

[0038] It should be noted that the number of the anti-rollers 46 is at least two, which can ensure that the rope support frame 4 moves more stably along the outer trolley girder track 5 and improves the running stability.

[0039] Optionally, the rope supporting system further includes a side beam 11, side rollers 45, a vertically arranged side roller connecting rod 48, and a plurality of side beam brackets 10 located above the outer trolley girder track 5. Among them, the plurality of side beam brackets 10 are evenly arranged at equal intervals on the outer side of the quay crane girder 1. The side beam 11 is fixedly arranged below the side beam brackets 10, and the length of the side beam 11 extends to the side beam brackets 10 at both ends of the quay crane girder 1. That is, the side beam brackets 10 are used to better support the side beam 11. The vertically arranged side roller connecting rod 48 and the idler 41 are arranged side by side on the idler bracket 42; on the same horizontal plane, the distance between the vertically arranged side roller connecting rod 48 and the quay crane girder 1 is less than the distance between the idler 41 and the quay crane girder 1. That is, the side roller connecting rod 48 is closer to the quay crane girder 1 than the idler 41. The top of the vertically arranged side roller connecting rod 48 is provided with a vertically arranged side roller 45, and the side roller 45 is also arranged on the side of the side beam 11 close to the quay crane girder 1, and the side roller 45 can move along the side of the side beam 11 close to the quay crane girder 1.

[0040] It should be noted that the arrangement of the side rollers 45 can further ensure the stability of the rope supporting frame 4 when moving on the outer trolley girder track 5, and can ensure that the hoisting wire rope 8 and the traveling wire rope 9 of the outer trolley are always in a lifted state.

[0041] Optionally, the traction pulley 47 is vertically arranged on the idler bracket 42 between the vertically arranged side roller connecting rod 48 and the idler 41.

[0042] Optionally, a protective cover 43 is further arranged on the outer circumference of the idler 41. The protective cover 43 is also arranged on the idler bracket 42 and does not interfere with the movement of the hoisting wire rope 8 and the traveling wire rope 9 of the outer trolley.

[0043] It should be noted that while the protective cover 43 does not affect the movement of the hoisting wire rope 8 and the traveling wire rope 9 of the outer trolley, it avoids the phenomenon that the wire rope bounces off the rope supporting frame in the prior art and ensures the stable operation of the through-type quay crane.

[0044] During operation, for the outside of one side girder 1 of the quay crane, one end of the external towing wire rope 13 is fixed to a rope supporting bracket 4, then it is redirected by 360° through the land-side redirecting pulley 15 and then wound around the sea-side redirecting pulley 14, and after being redirected by 360°, it is fixed to another rope supporting bracket 4 on the same side. Both ends of the internal towing wire rope 12 are fixed to the side girder 1 of the quay crane. Among them, the internal towing wire rope 12 starts from one end, winds around the towing pulley 47 of a rope supporting bracket 4, and the internal towing wire rope 12 is redirected by 360° through the towing pulley 47 and then passes through the external trolley 3 and is fixed to the external trolley 3. The other end of the internal towing wire rope 12 starts in the opposite direction, winds around the towing pulley 47 of another rope supporting bracket 4, and the internal towing wire rope 12 is redirected by 360° through the towing pulley 47 and then passes through the external trolley 3 and is also fixed to the external trolley 3.

[0045] It should be noted that the arrangement of the rope supporting brackets and other structures on the other side girder 1 of the quay crane is the same as the above method, and the embodiments of this specification will not elaborate on this.

[0046] Among them, the two roller wheels 44 of the rope supporting bracket 4 are pressing on the external trolley girder track 5 on the outside of the side girder 1 of the quay crane. The roller bracket 42 is welded and fixed to the outside of the side girder 1 of the quay crane, and multiple side beam brackets 10 are evenly arranged on the outside of the side girder 1 of the quay crane. Among them, both the roller bracket 42 and the side beam bracket 10 are welded by steel structural parts. The anti-roller 46 of the rope supporting bracket 4 is reversely clamped under the top plate 6 of the external trolley girder, and the side roller 45 is laterally clamped on the side beam 11, where the side beam 11 is welded along the entire length of the side girder 1 to the side beam bracket 10.

[0047] When the traversing quay crane system is operating, the external trolley 3 moves horizontally along the external trolley girder track 5 on the side girder 1 of the quay crane. At this time, the rope supporting bracket 4 is also pulled to move along the external trolley girder track 5 through the internal towing wire rope 12 and the external towing wire rope 13.

[0048] The anti-roller 46 of the rope supporting bracket 4 is reversely clamped under the top plate 6 of the external trolley girder and moves along the top plate 6 of the external trolley girder. At this time, the side roller 45 is laterally clamped on the side beam 11 and moves along the side beam 11. At this time, the hoisting wire rope 8 and the traveling wire rope 9 of the external trolley are always held in a lifted state by the rollers 41 on the rope supporting bracket 4.

[0049] The above are only the preferred embodiments of this specification, and do not impose any form of limitation on this specification. Although this specification has been disclosed above with the preferred embodiments, it is not intended to limit this specification. Any person skilled in the art, within the scope of the technical solutions of this specification, can make some changes or modifications to the above-disclosed technical content to obtain equivalent embodiments with equivalent changes. However, as long as the content does not depart from the technical solutions of this specification, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of this specification still fall within the scope of the technical solutions of this specification.

Claims

1. A rope support system for a traversing quay crane. An external trolley girder track (5), a horizontally arranged external trolley girder top plate (6), and a vertically arranged external trolley girder vertical rod (7) are provided on the outer side of the quay crane girder (1). The bottom end of the vertically arranged external trolley girder vertical rod (7) is fixedly connected to the quay crane girder (1). The top end of the vertically arranged external trolley girder vertical rod (7) is fixedly installed with a horizontally arranged external trolley girder top plate (6), and one side of the horizontally arranged external trolley girder top plate (6) is fixedly connected to the quay crane girder (1). The external trolley girder track (5) is laid on the horizontally arranged external trolley girder top plate (6), and the external trolley (3) can move on the external trolley girder track (5); it is characterized in that, The rope supporting system at least includes four rope supporting frames (4), an internal towing steel wire rope (12), an external towing steel wire rope (13), a sea side redirecting pulley (14), and a land side redirecting pulley (15); One end of the outer side of each quay crane girder (1) is provided with a sea side redirecting pulley (14), and the other end is provided with a land side redirecting pulley (15). The sea side redirecting pulley (14) is close to the sea, and the land side redirecting pulley (15) is close to the land. An external towing steel wire rope (13) is wound around the sea side redirecting pulley (14) and the land side redirecting pulley (15); Two rope supporting frames (4) are provided on the external trolley girder track (5) on the outer side of each quay crane girder (1). The proximal ends of the two rope supporting frames (4) are connected by the internal towing steel wire rope (12), and one end of the internal towing steel wire rope (12) is fixed on the quay crane girder (1), and the other end of the internal towing steel wire rope (12) is also fixed on the quay crane girder (1); the distal ends of the two rope supporting frames (4) are connected by the external towing steel wire rope (13), and one end of the external towing steel wire rope (13) is fixed on one rope supporting frame (4), and the other end of the external towing steel wire rope (13) is fixed on the other rope supporting frame (4); The two rope supporting frames (4) on the outer side of each quay crane girder (1) reciprocate on the external trolley girder track (5) following the internal towing steel wire rope (12) and the external towing steel wire rope (13); The rope supporting frame (4) includes a roller (41), a roller frame (42), and roller wheels (44). The roller (41) is horizontally arranged on the roller frame (42), and the roller (41) is used to support the moving external trolley hoisting steel wire rope (8) and the moving external trolley traveling steel wire rope (9). At least two rotatable roller wheels (44) are installed on one side of the roller frame (42) close to the external trolley girder track (5), and the two rotatable roller wheels (44) are both arranged on the external trolley girder track (5); A horizontally arranged anti-roller (46) is further provided below the roller frame (42). The anti-roller (46) is also arranged below the top plate (6) of the external trolley girder, and the anti-roller (46) can move along the lower surface of the top plate (6) of the external trolley girder; It further includes a side beam (11) located above the external trolley girder track (5), side rollers (45), a vertically arranged side roller connecting rod (48), and a plurality of side beam brackets (10). A plurality of side beam brackets (10) are equally spaced and arranged on the outer side of the quay crane girder (1). The side beam (11) is fixedly arranged below the side beam brackets (10), and the length of the side beam (11) extends to the side beam brackets (10) at both ends of the quay crane girder (1); The vertically arranged side roller connecting rod (48) and the idler roller (41) are arranged side by side on the idler roller frame (42); on the same horizontal plane, the distance between the vertically arranged side roller connecting rod (48) and the quay crane girder (1) is less than the distance between the idler roller (41) and the quay crane girder (1). The top of the vertically arranged side roller connecting rod (48) is provided with a vertically arranged side roller (45), and the side roller (45) is also arranged on the side of the side beam (11) close to the quay crane girder (1), and the side roller (45) can move along the side of the side beam (11) close to the quay crane girder (1).

2. The rope supporting system for the straddle type quay crane according to claim 1, wherein, The external trolley (3) is arranged on the external trolley girder track (5) between the two rope support frames (4) on the outer side of each quay crane girder (1), and one end of the internal traction steel wire rope (12) passes through the external trolley (3) and is fixed on the quay crane girder (1).

3. The rope support system for the gantry crane for cross-over type, as claimed in claim 1, wherein, The rope support frame (4) is also provided with a traction pulley (47). One end of the internal traction steel wire rope (12) starts from the quay crane girder (1), winds around the traction pulley (47) of one rope support frame (4), the internal traction steel wire rope (12) turns and then winds around the traction pulley (47) of the other rope support frame (4), and the internal traction steel wire rope (12) turns and is fixed on the quay crane girder (1).

4. The rope support system for the gantry crane for cross - over operation according to claim 3, characterized in that, The traction pulley (47) is vertically arranged on the idler roller frame (42) between the vertically arranged side roller connecting rod (48) and the idler roller (41).

5. The cable support system for the traversing quay crane according to claim 4, characterized in that, A protective cover (43) is also arranged on the outer periphery of the idler roller (41), and the protective cover (43) is also arranged on the idler roller frame (42) and does not interfere with the movement of the external trolley hoisting steel wire rope (8) and the external trolley traveling steel wire rope (9).

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