阅读说明：本技术 一种起重机动滑轮组固定工装以及固定方法 (Crane movable pulley block fixing tool and fixing method ) 是由 杨成 官倩倩 周月 冯木水 于 2021-05-31 设计创作，主要内容包括：本发明涉及一种起重机动滑轮组固定工装以及固定方法。所述起重机动滑轮组固定工装包括第一固定工装以及第二固定工装,其利用第一固定工装以及第二固定工装对起重船上起重机左右舷侧的动滑轮组进行固定,使得能够利用起重机提升组件将起重机的动滑轮组提升并固定于起重机起重架顶端,以空出起重船主甲板上的操作空间,以供存放打桩设备,以便海上风电项目的施工,固定稳定性良好,安全有效,同时将动滑轮组吊起固定后无需直接将其拆卸,节省构件的存放空间以及项目完工后恢复起重机功能所需的时间,节约安装成本。所述起重机动滑轮组固定方法,其通过合理安排施工流程,操作简单、有效且安全性能良好,同时便于后期的功能恢复。(The invention relates to a fixing tool and a fixing method for a movable pulley block of a crane. The fixed frock of hoist running block includes first fixed frock and the fixed frock of second, it utilizes first fixed frock and the fixed frock of second to fix the running block of hoist side about on the hoist ship, make can utilize hoist lifting assembly to promote the running block of hoist and be fixed in hoist crane frame top, in order to vacate the operating space on the hoist ship main deck, in order to deposit pile equipment, so that the construction of offshore wind-powered project, and fixed stability is good, and is safe effective, need not directly to dismantle it after will running block hoist fixed simultaneously, save the parking space of component and the project is accomplished and is recovered the required time of hoist function, practice thrift installation cost. According to the method for fixing the movable pulley block of the crane, the construction process is reasonably arranged, the operation is simple and effective, the safety performance is good, and meanwhile, the later function recovery is facilitated.)

1. The utility model provides a fixed frock of hoist movable pulley group which characterized in that:

the crane comprises a movable pulley block; the movable pulley block comprises a first movable pulley block and a second movable pulley block; the first movable pulley block comprises a plurality of connecting beams and a plurality of first pulleys, the connecting beams are arranged in parallel, and the first pulleys are rotatably arranged on the connecting beams; the second movable pulley block comprises a plurality of carrying pole beams and a plurality of second pulleys, the carrying pole beams are arranged in parallel, and the second pulleys are rotatably arranged on the carrying pole beams;

the crane movable pulley block fixing tool comprises a first fixing tool and a second fixing tool;

the first fixing tool comprises at least two first cross beams and at least two first longitudinal beams; the first cross beam extends along the horizontal direction and is oppositely arranged on the upper side and the lower side of the connecting beam; each first cross beam is perpendicular to the connecting beams and fixedly connected with the surfaces of all the connecting beams; the first longitudinal beam is vertically arranged above the connecting beam, and the end part of the first longitudinal beam is fixedly connected with the first cross beam;

the second fixing tool comprises at least two second cross beams, a limiting frame and at least two second longitudinal beams; the second cross beam extends along the horizontal direction and is oppositely arranged at the outer sides of the two ends of the shoulder pole beam; each second cross beam is perpendicular to the shoulder pole beams and is fixedly connected with the end parts of all the shoulder pole beams; the limiting frame is of a frame-shaped structure, and each shoulder pole beam penetrates through and is limited in the limiting frame; the second longitudinal beam is vertically arranged above the shoulder pole beam, and the end part of the second longitudinal beam is fixedly connected with the limiting frame.

2. The crane movable pulley block fixing tool according to claim 1, wherein: the limiting frame comprises at least two limiting cross beams and at least two limiting longitudinal beams, and the limiting cross beams extend along the horizontal direction and are oppositely arranged on the upper side and the lower side of the shoulder pole beam; the limiting longitudinal beams extend in the vertical direction, and two ends of each limiting longitudinal beam are fixedly connected with the limiting longitudinal beams respectively; each carrying pole beam is perpendicular to the limiting cross beams and the limiting longitudinal beams and is limited between the two opposite limiting cross beams and the two opposite limiting longitudinal beams.

3. The crane movable pulley block fixing tool according to claim 2, wherein: the limiting frame further comprises a plurality of longitudinal limiting pieces which are oppositely and fixedly arranged on the two limiting cross beams and are respectively abutted against the upper side surface and the lower side surface of the carrying pole beam.

4. The crane movable pulley block fixing tool according to claim 3, wherein: the limiting frame further comprises a plurality of limiting clamping pieces, the limiting clamping pieces are of U-shaped structures, the limiting clamping pieces are sleeved on the shoulder pole beam, and two ends of the limiting clamping pieces are fixedly connected with the limiting cross beam.

5. The crane movable pulley block fixing tool according to claim 2, wherein: the first cross beam, the first longitudinal beam, the second cross beam, the second longitudinal beam, the limiting cross beam and the limiting longitudinal beam are all box-shaped beams.

6. The crane movable pulley block fixing tool according to claim 1, wherein: contact plates are additionally arranged at the tops of the first longitudinal beam and the second longitudinal beam, and the contact plates are made of MGE engineering plastic alloy.

7. A method for fixing a movable pulley block of a crane is characterized by comprising the following steps:

the crane also comprises a hoisting frame, a lifting assembly, a hoisting beam and a hoisting tool, wherein the hoisting frame is fixed on the bow main deck, and the lifting assembly is fixed on the hoisting frame; the hanging beam is fixedly connected with the connecting beam and fixedly connected with the shoulder pole beam through a pin shaft; a support seat is arranged on the bow main deck, a hanging beam is placed on the support seat, and a rubber pad is arranged between the hanging beam and the support seat; the lifting appliance is fixed on the lifting beam;

the method for fixing the movable pulley block of the crane by using the movable pulley block fixing tool of the crane of any one of claims 1 to 6 comprises the following specific operation steps:

s1, firstly, dismantling the lifting appliance, lifting the lifting appliance off the ship and storing the lifting appliance in a wharf, and then integrally lifting the lifting beam and the movable pulley block to a certain height by using the lifting assembly to remove the rubber pad between the lifting beam and the supporting seat; placing the hanging beam above the supporting seat again, and welding and fixing the hanging beam and the supporting seat;

s2, erecting an operation frame around the movable pulley block, cutting a connecting beam of the first movable pulley block to separate the connecting beam from the hanging beam, and sealing the cut by using a sealing plate; removing the pin shaft of the second movable pulley block to separate the pin shaft from the hanging beam; then, an old box girder is used for additionally installing a first fixing tool and a second fixing tool outside the first movable pulley block and the second movable pulley block;

s3, performing quality inspection on the first fixing tool and the second fixing tool, and then performing surface painting;

and S4, lifting the first movable pulley block and the second movable pulley block together with the first fixing tool and the second fixing tool to the top end of the hoisting frame by using the lifting assembly, and applying a certain load to enable the tops of the first longitudinal beam and the second longitudinal beam to be abutted against the bottom of the hoisting frame so as to fix the movable pulley blocks.

8. The method for fixing the movable pulley block of the crane according to claim 7, wherein: a hoisting frame beam is arranged at the top end of the hoisting frame along the horizontal direction, and the width of the bottom side of the hoisting frame beam is not more than the widths of the first longitudinal beam and the second longitudinal beam; in step S4, the first movable pulley block and the second movable pulley block are lifted to the front of the top end of the hoisting frame, and rubber pads are disposed between the tops of the first longitudinal beam and the second longitudinal beam and the hoisting frame beam.

9. The method for fixing the movable pulley block of the crane according to claim 8, wherein: the top of the first longitudinal beam and the top of the second longitudinal beam are fixedly provided with top limiting parts, and the first movable pulley block and the second movable pulley block are fixed on the top end of the hoisting frame, the top limiting parts are respectively positioned on two sides of the hoisting frame beam and form a gap with the surfaces of the two sides of the hoisting frame beam.

10. The method for fixing the movable pulley block of the crane according to claim 7, wherein: and the top end of the hoisting frame is also provided with a monitoring camera device, and the monitoring camera range of the monitoring camera device covers the first fixed tool and the second fixed tool.

Technical Field

The invention relates to the technical field of ship refitting engineering, in particular to a fixing tool and a fixing method for a movable pulley block of a crane.

Background

The crane ship is also called a floating crane and is mainly used for loading and unloading large cargos as a port ship. For a large crane ship, huge hoisting equipment is arranged, the large crane ship comprises a lifting appliance, a movable pulley block, a lifting arm, a hoisting steel wire rope and the like, the occupied space is large, and when the crane ship needs engineering applicability modification, for example, for piling construction of offshore wind power projects, a single-pile guide frame construction platform needs to be additionally arranged on the crane ship. The single-pile guide frame construction platform is additionally arranged on a main deck of a ship bow and mainly comprises 1 pile stabilizing platform (the whole size of the platform is 32.5 multiplied by 16.5 m, the total weight is about 424 tons), 4 positioning piles (the diameter is phi 2.5 m, the length of a single pile is 50 m), 1 35-ton crane (the top of the crane is 28 m away from the main deck, and the rotation radius of a lifting hook is 30 m), 1 set of pile driving equipment, 2 power cabinets, 1 control cabinet and the like.

After the single-pile guide frame construction platform is additionally arranged, the original open air main deck basically has no residual space, and when the wind power project pile driving construction is carried out on the sea, the open air main deck needs to be cleaned to form a space of about 100 square meters for placing pile driving auxiliary equipment facilities, materials and the like.

The most direct mode is to disassemble the original lifting appliance, the movable pulley block and the hoisting steel wire rope on the ship, but the two problems exist in the process: firstly, the disassembled lifting appliance, the movable pulley block and the hoisting steel wire rope can not find vacant positions on the ship for storage; secondly, after the wind power project is finished, the function of the original crane needs to be recovered, the construction time for recovering the lifting appliance, the movable pulley block and the lifting steel wire rope at the later stage is longer (about two weeks), and the construction cost is higher (tens of thousands yuan). Therefore, a simple, effective and safe method is needed to fix the movable pulley block on the top end of the hoisting frame, so that the construction space of the exposed main deck surface can be made, and partial functions of the crane can be reserved for later recovery.

Disclosure of Invention

Based on this, the invention aims to provide a crane sliding set fixing tool which has the advantages of simple structure, good fixing stability and low cost.

A fixed frock of movable pulley block of crane, the said crane includes the movable pulley block; the movable pulley block comprises a first movable pulley block and a second movable pulley block; the first movable pulley block comprises a plurality of connecting beams and a plurality of first pulleys, the connecting beams are arranged in parallel, and the first pulleys are rotatably arranged on the connecting beams; the second movable pulley block comprises a plurality of carrying pole beams and a plurality of second pulleys, the carrying pole beams are arranged in parallel, and the second pulleys are rotatably arranged on the carrying pole beams;

the crane movable pulley block fixing tool comprises a first fixing tool and a second fixing tool;

the first fixing tool comprises at least two first cross beams and at least two first longitudinal beams; the first cross beam extends along the horizontal direction and is oppositely arranged on the upper side and the lower side of the connecting beam; each first cross beam is perpendicular to the connecting beams and fixedly connected with the surfaces of all the connecting beams; the first longitudinal beam is vertically arranged above the connecting beam, and the end part of the first longitudinal beam is fixedly connected with the first cross beam;

the second fixing tool comprises at least two second cross beams, a limiting frame and at least two second longitudinal beams; the second cross beam extends along the horizontal direction and is oppositely arranged at the outer sides of the two ends of the shoulder pole beam; each second cross beam is perpendicular to the shoulder pole beams and is fixedly connected with the end parts of all the shoulder pole beams; the limiting frame is of a frame-shaped structure, and each shoulder pole beam penetrates through and is limited in the limiting frame; the second longitudinal beam is vertically arranged above the shoulder pole beam, and the end part of the second longitudinal beam is fixedly connected with the limiting frame.

According to the fixing tool for the movable pulley block of the crane, the movable pulley block on the left side and the right side of the crane on the crane ship is fixed by using the first fixing tool and the second fixing tool, so that the movable pulley block of the crane can be lifted and fixed to the top end of the crane hoisting frame by using the crane lifting assembly, an operation space on a main deck of the crane ship is left out to store pile driving equipment, pile driving construction of offshore wind power projects is facilitated, the fixing stability is good, safety and effectiveness are achieved, meanwhile, the movable pulley block is directly lifted and fixed, disassembly of the movable pulley block is not needed, the storage space of components and the time required for recovering the functions of the crane after the projects are finished can be saved, the installation cost can be saved, and the economic benefit is improved.

Furthermore, the limiting frame comprises at least two limiting cross beams and at least two limiting longitudinal beams, and the limiting cross beams extend along the horizontal direction and are oppositely arranged on the upper side and the lower side of the shoulder pole beam; the limiting longitudinal beams extend in the vertical direction, and two ends of each limiting longitudinal beam are fixedly connected with the limiting longitudinal beams respectively; each carrying pole beam is perpendicular to the limiting cross beams and the limiting longitudinal beams and is limited between the two opposite limiting cross beams and the two opposite limiting longitudinal beams.

Furthermore, the limiting frame further comprises a plurality of longitudinal limiting pieces which are oppositely and fixedly arranged on the two limiting cross beams and are respectively abutted against the upper side surface and the lower side surface of the carrying pole beam. The longitudinal limiting part is used for limiting the carrying pole beam along the vertical direction, and relative displacement between the longitudinal limiting part and the second fixing tool is avoided.

Furthermore, the limiting frame further comprises a plurality of limiting clamping pieces, the limiting clamping pieces are of U-shaped structures, the limiting clamping pieces are sleeved on the shoulder pole beam, and two ends of the limiting clamping pieces are fixedly connected with the limiting cross beam. The limiting clamping piece is used for limiting the carrying pole beam along the horizontal direction, and relative displacement between the limiting clamping piece and the second fixing tool is avoided.

Furthermore, the first cross beam, the first longitudinal beam, the second cross beam, the second longitudinal beam, the limiting cross beam and the limiting longitudinal beam are all box-shaped beams, the existing old box-shaped beams can be used for manufacturing, existing resources are fully utilized, and construction cost is reduced.

Furthermore, contact plates are additionally arranged at the tops of the first longitudinal beam and the second longitudinal beam and are used for being in contact with the bottom side of the top end of the hoisting frame, the contact plates are made of MGE engineering plastic alloy, the material is good in wear resistance and ductility, the friction coefficient between the fixing tool and the bottom side of the top end of the hoisting frame can be reduced, and the wear probability is reduced.

In addition, the embodiment of the invention also provides a method for fixing the movable pulley block of the crane, the crane further comprises a hoisting frame, a lifting assembly, a hoisting beam and a hoisting tool, the hoisting frame is fixed on the bow main deck, and the lifting assembly is fixed on the hoisting frame; the hanging beam is fixedly connected with the connecting beam and fixedly connected with the shoulder pole beam through a pin shaft; a support seat is arranged on the bow main deck, a hanging beam is placed on the support seat, and a rubber pad is arranged between the hanging beam and the support seat; the lifting appliance is fixed on the lifting beam;

the method for fixing the movable pulley block of the crane uses the movable pulley block fixing tool of the crane for fixing, and comprises the following specific operation steps:

s1, firstly, dismantling the lifting appliance, lifting the lifting appliance off the ship and storing the lifting appliance in a wharf, and then integrally lifting the lifting beam and the movable pulley block to a certain height by using the lifting assembly to remove the rubber pad between the lifting beam and the supporting seat; placing the hanging beam above the supporting seat again, and welding and fixing the hanging beam and the supporting seat;

s2, erecting an operation frame around the movable pulley block, cutting a connecting beam of the first movable pulley block to separate the connecting beam from the hanging beam, and sealing the cut by using a sealing plate; removing the pin shaft of the second movable pulley block to separate the pin shaft from the hanging beam; then, an old box girder is used for additionally installing a first fixing tool and a second fixing tool outside the first movable pulley block and the second movable pulley block;

s3, performing quality inspection on the first fixing tool and the second fixing tool, and then performing surface painting;

and S4, lifting the first movable pulley block and the second movable pulley block together with the first fixing tool and the second fixing tool to the top end of the hoisting frame by using the lifting assembly, and applying a certain load to enable the tops of the first longitudinal beam and the second longitudinal beam to be abutted against the bottom of the hoisting frame so as to fix the movable pulley blocks.

According to the method for fixing the movable pulley block of the crane, the construction process is reasonably arranged, after the movable pulley block and the lifting beam are separated, the box-shaped beam is used for additionally arranging a fixing tool outside the movable pulley block to fix the movable pulley block, and further the movable pulley block is lifted to the top end of the lifting frame to be fixed, so that the purpose of fixedly storing the movable pulley block is achieved, the operation space of a main deck is reserved, and the fixing method is simple and effective in operation, good in safety performance and convenient for later-stage function recovery.

Furthermore, a crane girder is arranged at the top end of the crane frame along the horizontal direction, and the width of the bottom side of the crane girder is not more than the widths of the first longitudinal beam and the second longitudinal beam; in step S4, the first movable pulley block and the second movable pulley block are lifted to the front of the top end of the hoisting frame, and a rubber pad is disposed between the top of the first longitudinal beam and the second longitudinal beam and the hoisting frame beam for buffering.

Furthermore, the top of the first longitudinal beam and the top of the second longitudinal beam are also fixedly provided with top limiting parts, and when the first movable pulley block and the second movable pulley block are fixed at the top end of the hoisting frame, the top limiting parts are respectively positioned at two sides of the hoisting frame beam and form a gap with the surfaces of the two sides of the hoisting frame beam. The top limiting part is used for limiting the first fixing tool and the second fixing tool, and relative displacement between the first fixing tool and the crane girder is avoided.

Further, the top end of the hoisting frame is further provided with a monitoring camera device, the monitoring camera range of the monitoring camera device covers the first fixing tool and the second fixing tool, so that a worker can conveniently monitor the condition whether the crane movable pulley block fixing tool is loosened or displaced in the construction process, and safety is ensured.

For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of a crane according to an embodiment of the present invention;

FIG. 2 is a schematic side view of a crane according to an embodiment of the present invention;

fig. 3 is a schematic structural view of the first fixing tool and the first movable pulley block according to the embodiment of the present invention;

fig. 4 is a schematic side view of the first fixing tool and the first movable pulley block structure according to the embodiment of the present invention;

fig. 5 is a schematic structural view of the second fixing tool and the second movable pulley block according to the embodiment of the invention;

fig. 6 is a schematic side view of the second fixing tool and the second movable pulley block structure according to the embodiment of the invention;

FIG. 7 is a schematic view of a movable pulley block fixing structure according to an embodiment of the present invention;

fig. 8 is a schematic port side view of a movable pulley block fixing structure according to an embodiment of the invention;

fig. 9 is a starboard side view schematically illustrating a movable pulley block fixing structure according to an embodiment of the present invention;

FIG. 10 is a schematic view of a fixed partial structure of a movable pulley block according to an embodiment of the present invention;

fig. 11 is a schematic port side view of a movable pulley block fixing partial structure according to an embodiment of the invention;

fig. 12 is a starboard side view schematically illustrating a movable pulley block fixing partial structure according to an embodiment of the present invention.

Detailed Description

For the piling operation of the wind power pile at sea in the offshore wind power project, in the prior art, a single-pile guide frame construction platform is additionally arranged on a large crane ship for piling construction, and in the following content, the crane power pulley block fixing tool and the fixing method in the embodiment of the invention are described by taking the wheel number of a 2500-ton crane ship with a catamaran structure of jiujiang ship division of medium-iron and large-bridge office group, as an example.

Meanwhile, in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

For a small swan wheel number, a single-pile guide frame construction platform additionally installed for an offshore wind power project needs to be additionally installed on a ship bow main deck, and the small swan wheel number mainly comprises 1 pile stabilizing platform (the overall size of the platform is 32.5 multiplied by 16.5 meters, the total weight is about 424 tons), 4 positioning piles (the diameter is phi 2.5 meters, the length of a single pile is 50 meters), 1 35-ton crane (the top of the crane is 28 meters away from the main deck, and the rotation radius of a lifting hook is 30 meters), 1 set of piling equipment, 2 power cabinets, 1 control cabinet and the like. After the 'little swan' wheel is additionally provided with the single-pile guide frame construction platform, the original exposed main deck basically has no residual space.

When the swan wheel is used for piling wind power projects on the sea, the open-air main deck needs to be cleaned to form a space of about 100 square meters for placing piling auxiliary equipment facilities, materials and the like; referring to fig. 1-2, fig. 1 is a schematic structural view of a crane according to an embodiment of the present invention, and fig. 2 is a schematic structural view of a crane according to an embodiment of the present invention, as shown in the drawings, the crane includes a hoisting frame 1, a lifting assembly (not shown), a support seat (not shown), a hanging beam (not shown), a spreader (not shown), a movable pulley block 2, and a hoisting cable 3; wherein the hoisting frame 1 is fixedly arranged on the bow main deck 4, and the lifting assembly is arranged on the hoisting frame 1; the number of the supporting seats is 2, the supporting seats are arranged on a bow main deck 4, the hanging beam is placed above the supporting seats, and a rubber pad is arranged between the hanging beam and the supporting seats; the number of the lifting appliances is 2, and the lifting appliances are connected with the lifting beam.

The movable pulley block 2 comprises a first movable pulley block 21 and a second movable pulley block 22; the first movable pulley block 21 is located on the port and comprises a plurality of connecting beams 211 and a plurality of first pulleys 212, specifically, the number of the connecting beams 211 is 2, the number of the first pulleys 212 is 4, the connecting beams 211 are arranged in parallel, two ends of each connecting beam 211 are fixedly connected with the hanging beam, and the pulleys are rotatably arranged on the connecting beams 211; the second movable pulley block 22 is located on the starboard and comprises a plurality of carrying pole beams 221 and a plurality of second pulleys 222, specifically, the number of the carrying pole beams 221 is 2, the number of the second pulleys 222 is 2, the carrying pole beams 221 are arranged in parallel, the carrying pole beams 221 are connected with the hanging beam through pin shafts, and the second pulleys 222 are rotatably arranged on the carrying pole beams 221; the hoist cable moveably connects the hoist assembly to the first sheave 212 and the second sheave 222.

According to the specific situation on the ship, related components of the crane need to be correspondingly processed for vacating the construction space of the bow main deck, and aiming at the technical problem, the embodiment of the invention provides a method for fixing a movable pulley block of the crane, which comprises the following specific operation steps:

s1, the overall dimension of the crane sling with the wheel number of little swan is as follows: based on the huge size and weight of the lifting appliance, the lifting appliance is firstly dismantled, hoisted to a ship and stored in a wharf to ensure the engineering safety, then the lifting assembly is used for integrally lifting the lifting beam and the movable pulley block to the height of 100mm, and a rubber pad between the lifting beam and the supporting seat is removed; placing the hanging beam above the supporting seat again, and welding and fixing the hanging beam and the supporting seat;

s2, erecting an operation frame around the movable pulley block, cutting the connecting beam 211 of the first movable pulley block 21 to separate the connecting beam from the hanging beam, and sealing the cut by using a sealing plate; the pin shaft of the second movable pulley block 22 is dismantled to be separated from the hanging beam; subsequently, the first movable pulley block 21 and the second movable pulley block 22 are fixed.

In contrast, the embodiment of the invention also provides a crane movable pulley block fixing tool, which comprises a first fixing tool 5 and a second fixing tool 6;

referring to fig. 3-4, fig. 3 is a schematic structural view of the first fixing tool and the first movable pulley block according to the embodiment of the present invention, fig. 4 is a schematic structural view of the first fixing tool and the first movable pulley block according to the embodiment of the present invention, as shown in the figure, the first fixing tool 5 includes at least two first cross beams 51 and at least two first longitudinal beams 52; the first cross beam 51 extends along the horizontal direction and is oppositely arranged at the upper side and the lower side of the connecting beam 211; each first cross beam 51 is perpendicular to the connecting beams 211 and is fixedly connected with the surfaces of all the connecting beams 211; the first longitudinal beam 52 is vertically arranged above the connecting beam 211, and the end part of the first longitudinal beam is fixedly connected with the first cross beam 51; further preferably, a reinforcing rib 53 is further disposed at a fixed connection position of the first cross beam 51 and the connecting beam 211.

Referring to fig. 5-6, fig. 5 is a schematic structural view of a second fixing tool and a second movable pulley block according to an embodiment of the present invention, and fig. 6 is a schematic structural view of the second fixing tool and the second movable pulley block according to the embodiment of the present invention, as shown in the figure, 6 includes at least two second cross beams 61, a limiting frame 62, and at least two second longitudinal beams 63; the second cross beam 61 extends in the horizontal direction and is oppositely arranged outside both ends of the shoulder pole beam 221; each second cross beam 61 is perpendicular to the shoulder pole beam 221 and is fixedly connected with the end parts of all the shoulder pole beams 221; the limit frame 62 is a frame-shaped structure, and each shoulder pole beam 221 is inserted and limited in the limit frame 62; the second longitudinal beam 63 is vertically disposed above the shoulder pole beam 221, and an end portion thereof is fixedly connected to the limit frame 62, and further preferably, a reinforcing rib 64 is further disposed at a fixed connection portion of the second longitudinal beam 63 and the limit frame 62.

As an optional implementation manner, in this embodiment, the limiting frame 62 includes at least two limiting cross beams 621 and at least two limiting longitudinal beams 622, and the limiting cross beams 621 extend in the horizontal direction and are oppositely disposed on the upper and lower sides of the carrying pole beam 221; the limiting longitudinal beams 622 extend in the vertical direction, and two ends of each limiting longitudinal beam 622 are fixedly connected with the limiting longitudinal beams 622 respectively; each shoulder pole beam 221 is perpendicular to the limiting cross beam 621 and the limiting longitudinal beam 622, and is limited between the two opposite limiting cross beams 621 and the two opposite limiting longitudinal beams 622.

The limiting frame 62 further includes a plurality of longitudinal limiting members 623 and a plurality of limiting engaging members 624, which are relatively and fixedly disposed on the limiting longitudinal beam 622 and respectively abut against the upper and lower side surfaces of the shoulder pole beam 221. The limiting engaging member 624 is a U-shaped structure, and is sleeved on the carrying pole beam 221, and two ends of the limiting engaging member are fixedly connected to the limiting cross beam 621. The longitudinal limiting member 623 is used for limiting the carrying pole beam 221 in the vertical direction, so as to prevent the carrying pole beam from generating relative displacement with the second fixing tool 6; the limiting engaging member 624 is used for limiting the carrying pole beam 221 in the horizontal direction, so as to prevent the carrying pole beam from moving relative to the second fixing tool 6.

As a specific embodiment, the first cross beam 51, the first longitudinal beam 52, the second cross beam 61, the second longitudinal beam 63, the limiting cross beam 621 and the limiting longitudinal beam 622 are all box-shaped beams, and can be manufactured by using the existing old box-shaped beams, so that the existing resources are fully utilized to reduce the construction cost, and further, internal reinforcing ribs can be arranged in the old box-shaped beams to improve the structural strength.

In the process of adding the first fixing tool 5, the specific construction sequence of the first cross beam 51 and the second longitudinal beam 63 can be adjusted according to the actual situation on site; in the process of adding the second fixing tool 6, the second movable pulley block 22 is lifted by a crane for about 2m until the second movable pulley block is completely separated from the hanging beam, and then the second fixing tool 6 is added on the second movable pulley block 22;

s3, performing quality inspection on the first fixing tool 5 and the second fixing tool 6, wherein the quality inspection includes inspecting whether the fixing tools are firmly installed, whether the quality of a welding seam is qualified, whether the size of the top of the tools deviates, whether a box beam is welded and sealed and the like, and painting the paint damage positions on the surfaces of the first fixing tool 5 and the second fixing tool 6 if no problem exists;

s4, please refer to fig. 7-12, fig. 7 is a schematic diagram of a movable pulley block fixing structure according to an embodiment of the present invention, fig. 8 is a schematic diagram of a port side view of the movable pulley block fixing structure according to the embodiment of the present invention, fig. 9 is a schematic diagram of a starboard side view of the movable pulley block fixing structure according to the embodiment of the present invention, fig. 10 is a schematic diagram of a fixed part structure of the movable pulley block according to the embodiment of the present invention, fig. 11 is a schematic diagram of a port side view of the fixed part structure of the movable pulley block according to the embodiment of the present invention, fig. 12 is a schematic diagram of a starboard side view of the fixed part structure of the movable pulley block according to the embodiment of the present invention, as shown in the figures, the lifting assembly is used to lift the first movable pulley block 21 and the second movable pulley block 22 together with the first fixing tool 5 and the second fixing tool 6 to the top end of the frame 1, and a certain load is applied to make the top of the first longitudinal beam 52 and the second longitudinal beam 63 abut against the bottom of the frame 1, and the movable pulley block is fixed.

In particular, hoisting frame 1 is provided with a hoisting frame beam 12, the width of the bottom side of hoisting frame beam 12 being no greater than the width of first longitudinal beam 52 and second longitudinal beam 63; contact plates are additionally arranged at the tops of the first longitudinal beam 52 and the second longitudinal beam 63 and are used for being in contact with the bottom side of the hoisting frame beam 12, the contact plates are made of MGE engineering plastic alloy, the material is good in wear resistance and ductility, the friction coefficient between the fixing tool and the bottom side of the hoisting frame beam 12 can be reduced, and the wear probability is reduced.

In step S4, the first movable pulley block 21 and the second movable pulley block 22 are lifted to the front of the top end of the hoisting frame 1, and a rubber pad 8 is disposed between the top of the first longitudinal beam 52 and the second longitudinal beam 63 and the hoisting frame beam 12 for buffering.

As an alternative embodiment, in this embodiment, top limit parts 7 are further fixedly disposed on top of the first longitudinal beam 52 and the second longitudinal beam 63, and when the first movable pulley block 21 and the second movable pulley block 22 are fixed on the top end of the hoisting frame 1, the top limit parts 7 are respectively located on two sides of the hoisting frame beam 12 and form a gap with two side surfaces of the hoisting frame beam 12. The top limiting part 7 is used for limiting the first fixing tool 5 and the second fixing tool 6, and avoiding relative displacement between the first fixing tool and the crane beam 12.

The top of the hoisting frame 1 is also provided with a monitoring camera device (not shown), the monitoring camera range of the monitoring camera device covers the first fixing tool 5 and the second fixing tool 6, so that a worker can conveniently monitor whether the crane movable pulley block fixing tool is loosened or displaced in the construction process, and the safety is ensured.

According to the fixing tool for the movable pulley block of the crane, the movable pulley block on the left side and the right side of the crane on the crane ship is fixed by using the first fixing tool and the second fixing tool, so that the movable pulley block of the crane can be lifted and fixed to the top end of the crane hoisting frame by using the crane lifting assembly, an operation space on a main deck of the crane ship is left out to store pile driving equipment, pile driving construction of offshore wind power projects is facilitated, the fixing stability is good, safety and effectiveness are achieved, meanwhile, the movable pulley block is directly lifted and fixed, disassembly of the movable pulley block is not needed, the storage space of components and the time required for recovering the functions of the crane after the projects are finished can be saved, the installation cost can be saved, and the economic benefit is improved.

According to the method for fixing the movable pulley block of the crane, through reasonable arrangement of a construction process, after the movable pulley block and the hanging beam are separated, a fixing tool is additionally arranged outside the movable pulley block by utilizing the box-shaped beam to fix the movable pulley block, and the movable pulley block is further hung to the top end of the crane frame to be fixed, so that the purpose of fixing and storing the movable pulley block is achieved, the operation space of a main deck is reserved, and the fixing method is simple and effective in operation, good in safety performance and convenient for later-stage function recovery.

After the crane movable pulley block fixing tool is used and the crane movable pulley block fixing method is adopted, under the condition that huge vibration is generated in the piling process of the offshore wind power project, the movable pulley block is always firmly fixed at the top end of the crane frame 1 with the height of about 50 meters away from the main deck surface of the ship bow through the monitoring camera device at the top end of the crane frame 1, any loosening or displacement condition does not occur, the requirement of piling construction of the wind power project of the wheel is met, and the crane movable pulley block fixing tool is good in stability and high in safety performance.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.