A floating crane ship anchor hoisting and shifting system and a hoisting and shifting method

Abstract

The application discloses a floating crane anchor machine hoisting and shifting system and a hoisting and shifting method, relates to the technical field of floating crane anchor machine installation, and comprises a shifting mechanism, a crane for hoisting the anchor machine onto the shifting mechanism, a hand chain block for moving the anchor machine on the shifting mechanism backward, and a first jacking mechanism for jacking up and lowering the anchor machine on the shifting mechanism; the shifting mechanism comprises a working frame and a plurality of support frames supported on the bottom of the front end of the working frame, the working frame is provided with sliding rails, the shifting mechanism further comprises a sliding table, and the sliding table is installed on the bottom of the anchor machine; a group of anchor machine lifting lugs are fixedly connected to the anchor machine, a group of rooting lifting lugs are arranged on the deck, each anchor machine lifting lug and each rooting lifting lug can be connected through a rope, and a plurality of groups of traction lifting lugs are further arranged on the deck; each anchor machine lifting lug and each group of traction lifting lugs can be connected through the hand chain block. The anchor machine hoisting and shifting of the application can avoid the influence of the boom, and the problem that the anchor machine cannot be hoisted onto the base platform due to the interference of the boom is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of floating crane anchor machine installation, in particular to a floating crane anchor machine hoisting and shifting system and a hoisting and shifting method. BACKGROUND

[0002] The floating crane is also called crane ship, which is mainly used for engineering ships for loading and unloading large cargos. The anchor machine is a mechanical device for reeling and unreeling anchors and anchor chains of the floating crane, which uses a hydraulic motor as a power to realize the operations of anchor reeling, mooring and cable winding. During the ship trial, the related performance of the anchor machine needs to be verified, which has a great influence on the ship trial and delivery node. The conventional installation methods of the large ship outfitting equipment include hoisting by a crane or other equipment and shifting by means of a track or other tooling facilities.

[0003] Based on the above situation, there are two steps of hoisting and shifting to position in the installation process of the floating crane anchor machine. The problems of the hoisting method are as follows: 1. When hoisting in the dock, the other equipment at the dock side cannot meet the hoisting curve requirements due to the 600T gantry crane performing other operation contents; 2. Influenced by the moving path of the crane, the upper end of the boom interferes with the hoisting path if the anchor machine is installed below the boom; 3. The hoisting operation is difficult due to the small space between the anchor machine and the boom, and the command line of sight is blocked, which is not convenient for on-site command operation. The problems of the track shifting method are as follows: 1. The track tooling needs to be specially made, which has a high cost; 2. Additional lifting equipment needs to be provided, which has high operation requirements, high synchronization requirements and great difficulty; 3. The shifting power equipment needs to use a winch, which has limitations in construction conditions. SUMMARY

[0004] The purpose of the present application is to provide a floating crane anchor machine hoisting and shifting system and a hoisting and shifting method, which aims to solve the technical problems of anchor machine hoisting interference with the boom, hoisting difficulty and high cost of shifting tooling in the prior art.

[0005] To solve the above technical problems, the technical scheme of the present application is as follows:

[0006] A floating crane anchor machine hoisting and shifting system, comprising a shifting mechanism, a crane for hoisting the anchor machine to the shifting mechanism, a hand chain hoist for moving the anchor machine on the shifting mechanism backward, and a first jacking mechanism for jacking up and lowering the anchor machine on the shifting mechanism;

[0007] The shifting mechanism comprises a working frame and a plurality of support frames supported on the bottom of the front end of the working frame, the rear end of the working frame is supported on a base platform, a sliding rail is arranged on the working frame, and the shifting mechanism further comprises a sliding table capable of sliding along the sliding rail, the sliding table is installed on the bottom of the anchor machine;

[0008] A group of anchor machine lifting lugs are fixedly connected to the anchor machine, a group of root lifting lugs are arranged on the deck, and each anchor machine lifting lug and each root lifting lug can be connected by a rope.

[0009] The deck is also equipped with multiple sets of towing lugs, and each anchor winch lug and each set of towing lugs can be connected by a hand-operated hoist.

[0010] Preferably, the working surface of the worktable is tilted backward and downward. Preferably, the left and right ends of the bottom of the slide table are fixedly connected to the first limiting blocks on the left and right sides of the slide rail.

[0011] Preferably, each of the four corners of the top of the slide table is provided with a second limiting block that limits the anchor machine to the front, back, left, and right sides.

[0012] Preferably, the third limiting block of the limiting anchor is fixed to the rear end of the working frame.

[0013] Preferably, the work frame includes a horizontal frame, with a plurality of first legs fixed to the front end of the horizontal frame and a plurality of second legs fixed to the rear end of the horizontal frame and supported on a base platform.

[0014] Preferably, two hand-operated hoists are installed at the front and rear of the anchor winch.

[0015] Preferably, the first lifting mechanism consists of four jacks supported at the four corners of the anchor winch.

[0016] Preferably, the hoisting system further includes a second hoisting mechanism that hoists and lowers the anchor winch after the first hoisting mechanism has descended to its limit position.

[0017] A method for lifting and shifting a floating crane anchor winch, using a floating crane anchor winch lifting and shifting system, includes the following steps:

[0018] Step 1: Support the work frame on the support frame and base platform;

[0019] Step 2: Install the slide on the bottom of the anchor winch, and use a crane to lift the anchor winch to the predetermined position on the work frame;

[0020] Step 3: Secure the anchor winch lugs to the deck anchoring lugs using ropes, and fix the first limiting block to the slide.

[0021] Step 4: Four manual chain hoists, four anchor winch lugs, and four sets of traction lugs are set up for each anchor winch lug. The manual chain hoists are used to connect each anchor winch lug to the foremost set of traction lugs.

[0022] Step 5: Remove the ropes and simultaneously tighten the two hand-operated hoists connected to the two front traction lugs, and simultaneously loosen the two hand-operated hoists connected to the two rear traction lugs. The four hand-operated hoists should be operated slowly in coordination to ensure that the two hand-operated hoists on the left and right are under force at the same time, so as to avoid derailment caused by uneven tension between the two hand-operated hoists. At the same time, pay attention to adjusting and controlling the direction of the anchor hoist's movement. Apply lubricating oil to the slide rail to reduce friction during the movement. As the anchor hoist moves backward, remove the hand-operated hoists from the front set of traction lugs and connect the removed hand-operated hoists to the rear set of traction lugs to continue pulling the anchor hoist backward until the anchor hoist is above the base platform.

[0023] Step Six: Use four jacks to lift the anchor winch. Select the lifting point at the anchor winch's strong frame and avoid the bolt connection points on the base platform. Remove the working frame. After all four jacks have descended to their maximum stroke, use the second lifting mechanism to lift the anchor winch onto the installation base, completing the subsequent positioning and installation work.

[0024] After adopting the above technical solution, the beneficial effects of the present invention are:

[0025] 1. In this invention, the anchor winch is hoisted onto the installed work frame using a crane. The anchor winch lugs are connected to the anchor anchor lugs using ropes to secure the anchor winch. The anchor winch lugs and the traction lugs are connected by a hand-operated hoist, and the ropes are removed. By controlling the loosening and tightening of the hand-operated hoist, the anchor winch is moved backward along the slide rail. By replacing the traction lug connected to the hand-operated hoist, the anchor winch is pulled to slide above the base platform. The first lifting mechanism lifts the anchor winch, and the hand-operated hoist and work frame are removed. The first lifting mechanism lowers the anchor winch onto the base platform, and finally, the anchor winch is fixed on the base platform.

[0026] 2. The anchor hoisting and relocation of the present invention can avoid the influence of the boom. By hoisting the anchor hoist on the relocation mechanism and then pulling the anchor hoist to the top of the base platform, that is, below the anchor hoist, the problem of being unable to hoist the anchor hoist to the base platform due to the interference of the boom is solved.

[0027] 3. The displacement mechanism of this invention has a simple structure and low cost. Furthermore, this invention uses a hand-operated hoist on the deck to pull the anchor winch, avoiding interference from the boom and the difficulty of installing the traction mechanism above the base platform. This invention can realize the installation of the anchor winch below the boom, and it is low-cost and easy to operate.

[0028] 4. The working surface of the work frame is tilted backward and downward, which facilitates the backward movement of the anchor winch, saving time and effort. The first limit block cooperates with the slide rail to limit the slide table, thereby limiting the anchor winch. The second limit block limits the forward and backward position of the anchor winch. The third limit block limits the backward movement of the anchor winch, preventing the anchor winch from sliding off the work frame.

[0029] 5. The first and second legs are supported by the support frame and the base platform respectively, improving the stability of the working frame. The installation of two slide rails and support pipes can improve the strength of the working frame and extend its service life. The installation of four hand-operated hoists can improve the stability of the anchor winch during movement and prevent the anchor winch from deviating. The installation of jacks can facilitate the lifting of the anchor winch. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the anchor winch's center of gravity and lifting point distribution;

[0031] Figure 2 This is a schematic diagram of the anchor winch installation;

[0032] Figure 3 This is a top-view schematic diagram of the relocation process of a floating crane anchor winch hoisting and relocation system;

[0033] Figure 4 This is a side view schematic diagram of the displacement process of a floating crane anchor winch hoisting and displacement system;

[0034] Figure 5 This is a structural diagram of the work frame;

[0035] Figure 6 This is a structural diagram of the anchor winch, slide, and slide rail.

[0036] In the diagram, there are: anchor winch 1, anchor winch lug 10, anchor winch center of gravity 11, working frame 2, slide rail 20, third limiting block 21, first leg 22, second leg 23, support pipe 24, support frame 3, base platform 4, slide table 5, first limiting block 50, deck 6, anchoring lug 60, towing lug A61, towing lug B62, towing lug C63, towing lug D64, towing lug E65, towing lug F66, boom 7, and lifting point 8. Detailed Implementation

[0037] The invention will now be further described with reference to the accompanying drawings.

[0038] The orientations mentioned in this specification are based on the orientation of the floating crane anchor winch hoisting and shifting system of the present invention during normal operation, and do not limit the orientation during storage and transportation. They only represent relative positional relationships and do not represent absolute positional relationships.

[0039] Example 1:

[0040] like Figures 1 to 6 As shown, a floating crane anchor winch hoisting and shifting system includes a shifting mechanism, a crane for hoisting the anchor winch 1 onto the shifting mechanism, a hand-operated hoist for moving the anchor winch 1 backward on the shifting mechanism, and a first lifting mechanism for raising and lowering the anchor winch 1 on the shifting mechanism.

[0041] The shifting mechanism includes a working frame 2 and multiple support frames 3 supported on the front bottom of the working frame 2. The rear end of the working frame 2 is supported on a base platform 4. The working frame 2 is equipped with a slide rail 20. The shifting mechanism also includes a slide table 5 that can slide along the slide rail 20. The slide table 5 is installed on the bottom of the anchor winch 1. Preferably, the slide table 5 is bolted to the anchor winch 1. Preferably, the support frames 3 are bolted to the deck 6, and the working frame 2 is bolted to the support frames 3 and the base platform 4. The support frames 3 are steel supports with a rated load of 50t. There are six support frames 3, arranged in two rows along the front-rear direction, with three support frames 3 in each row.

[0042] Anchor winch 1 is fixed with a set of anchor winch lugs 10, and deck 6 is equipped with a set of anchor lugs 60. Each anchor winch lug 10 and each anchor lug 60 can be connected by ropes. There are four anchor winch lugs 10 and four anchor lugs 60. The anchor winch lugs 10 are welded to the anchor winch 1, and the anchor lugs 60 are welded to the deck 6.

[0043] Deck 6 is also equipped with multiple sets of towing lugs, and each anchor winch lug 10 and each set of towing lugs can be connected by a hand-operated hoist. In this invention, the towing lugs are welded to deck 6, and there are six towing lugs: towing lug A61, towing lug B62, towing lug C63, towing lug D64, towing lug E65, and towing lug F66. Towing lugs A61, B62, C63, and D64 form one set of towing lugs, and towing lugs C63, D64, E65, and F66 form another set of towing lugs.

[0044] The hoisting system also includes a second hoisting mechanism that raises and lowers the anchor winch 1 after the first hoisting mechanism has descended to its limit position.

[0045] Preferably, the first lifting mechanism consists of four jacks supported at the four corners of the anchor winch 1. The jacks facilitate the lifting of the anchor winch 1. The second lifting mechanism consists of four screw jacks supported at the four corners of the anchor winch 1, with the screw jacks positioned away from the jacks. The second lifting mechanism can take over from the first lifting mechanism when the first lifting mechanism's descent stroke is insufficient, thus completing the lowering of the anchor winch 1.

[0046] This invention uses a crane to hoist the anchor winch 1 onto the installed work frame 2. The anchor winch lug 10 is connected to the anchoring lug 60 via ropes to secure the anchor winch 1. The anchor winch lug 10 and the traction lug are connected via a hand-operated hoist, and the ropes are removed. By controlling the loosening and tightening of the hand-operated hoist, the anchor winch 1 is moved backward along the slide rail 20. By replacing the traction lug connected to the hand-operated hoist, the anchor winch 1 is pulled to slide above the base platform 4. The first lifting mechanism lifts the anchor winch 1, and the hand-operated hoist and work frame 2 are removed. After the first lifting mechanism lowers the anchor winch 1 to its limit position, the second lifting mechanism lifts the anchor winch 1, removing the first lifting mechanism. Then, the second lifting mechanism lowers the anchor winch 1 onto the base platform 4. The second lifting mechanism continues to lower, removing the second lifting mechanism. Finally, the anchor winch 1 is fixed onto the base platform 4. The anchor winch 1 of this invention can be hoisted and relocated without the interference of the boom 7. By hoisting the anchor winch 1 onto the relocation mechanism and then pulling it to the top of the base platform 4 (below the anchor winch 1) using a hand-operated hoist, the problem of being unable to hoist the anchor winch 1 onto the base platform 4 due to interference from the boom 7 is solved. The relocation mechanism of this invention has a simple structure and low cost. Furthermore, by using a hand-operated hoist on the deck 6 to pull the anchor winch 1, the problem of interference from the boom 7 and the difficulty in setting the traction mechanism above the base platform 4 is avoided. This invention can realize the installation of the anchor winch 1 below the boom 7, and it is low-cost and easy to operate.

[0047] In a preferred embodiment, the working surface of the work frame 2 is tilted backward and downward. Preferably, the tilt angle of the work frame 2 is one degree. This structure facilitates the rearward movement of the anchor winch 1, saving time and effort.

[0048] In a preferred embodiment, the left and right ends of the bottom of the slide table 5 are fixedly connected to first limiting blocks 50 that limit the left and right sides of the slide rail 20. Preferably, the first limiting blocks 50 are welded to the slide table 5. The first limiting blocks 50 cooperate with the slide rail 20 to limit the slide table 5, thereby limiting the anchor winch 1.

[0049] In a preferred embodiment, each of the four corners of the top of the slide table 5 is provided with a second limiting block that limits the front, rear, left, and right positions of the anchor winch 1. Preferably, the second limiting blocks are welded to the slide table 5. The second limiting blocks limit the front and rear positions of the anchor winch 1.

[0050] In a preferred embodiment, the work frame 2 includes a horizontal frame. Multiple first legs 22, supported on a support frame 3, are fixed to the front end of the horizontal frame, and multiple second legs 23, supported on a base platform 4, are fixed to the rear end of the horizontal frame. Preferably, the first legs 22 and second legs 23 are welded to the horizontal frame, the first legs 22 are bolted to the support frame 3, and the second legs 23 are bolted to the base platform 4. The first legs 22 and second legs 23 are arranged in two rows along the front-to-back direction, with three first legs 22 and six second legs 23 in each row. The first legs 22 and second legs 23 are supported on the support frame 3 and the base platform 4 respectively, improving the stability of the work frame 2.

[0051] In a preferred embodiment, the horizontal frame includes two slide rails 20 and a plurality of support tubes 24 connected between the two slide rails 20. The slide rails 20 and the support tubes 24 are welded together. The arrangement of the two slide rails 20 and the support tubes 24 can improve the strength of the work frame 2 and extend its service life.

[0052] In a preferred embodiment, the rear end of the working frame 2 is fixedly connected to the third limiting block 21 of the anchor 1. Preferably, the third limiting block 21 is welded to the support pipe 24. The third limiting block 21 limits the rearward movement of the anchor 1, preventing the anchor 1 from sliding off the working frame 2.

[0053] As a preferred embodiment, two chain hoists are installed at the front and two at the rear of the anchor winch 1. The installation of four chain hoists can improve the stability of the anchor winch 1 during movement and prevent the anchor winch 1 from deviating from its designated direction.

[0054] The lifting process of the floating crane anchor winch 1 is as follows:

[0055] Determine the relationship between the anchor winch lug 10 and the anchor winch center of gravity as follows: Figure 1 As shown, the anchor winch lug 10 should be positioned within the projection of the anchor winch's center of gravity 11 and located at the intersection of the strong frames of the anchor winch 1. L1, L2, L3, and L4 are the horizontal distances of anchor winch lug 1, anchor winch lug 2, anchor winch lug 3, and anchor winch lug 4 from the center of gravity, respectively. Select the on-site rope length L, where L is the rope length for anchor winch lug 1. Calculate the height difference H between the anchor winch lug and the lifting point 8, and the required rope length L22 for anchor winch lug 2, based on the Pythagorean theorem.

[0056]

[0057]

[0058]

[0059]

[0060] Based on the calculated lengths of L22, L33, and L44, the rope lengths are adjusted using ropes and shackles to ensure that anchor winch 1 can be hoisted smoothly.

[0061] Example 2:

[0062] like Figures 1 to 6 As shown, a method for lifting and shifting a floating crane anchor winch, using a floating crane anchor winch lifting and shifting system as described in Embodiment 1, includes the following steps:

[0063] Step 1: Support the work frame 2 on the support frame 3 and the base platform 4. The work frame 2 is installed on the support frame 3 and the base platform 4 with bolts.

[0064] Step 2: Install the slide 5 on the bottom of the anchor winch 1, and use a crane to lift the anchor winch 1 to the predetermined position on the work frame 2;

[0065] Step 3: Secure the anchor winch lug 10 to the deck 6 anchor lug 60 with ropes, and fix the first limiting block 50 to the slide table 5.

[0066] Step 4: The hand chain hoist, anchor winch lug 10 and each group of traction lugs are set to four. The hand chain hoist connects each anchor winch lug 10 to the foremost group of traction lugs. The foremost group of traction lugs is traction lug A61, traction lug B62, traction lug C63 and traction lug D64.

[0067] Step 5: Remove the ropes and simultaneously tighten the two hand-operated hoists connected to the two front traction lugs, and simultaneously loosen the two hand-operated hoists connected to the two rear traction lugs. The four hand-operated hoists should be operated slowly in coordination to ensure that the two hand-operated hoists on the left and right are under force at the same time, so as to avoid derailment caused by uneven pulling force between the two hand-operated hoists on the left and right. At the same time, pay attention to adjusting the direction of movement of the anchor hoist 1. Apply lubricating oil to the slide rail 20 to reduce friction during the movement. As the anchor hoist 1 moves backward, remove the first set of traction lugs from the front of the hand-operated hoists and connect the removed hand-operated hoists to the second set of traction lugs. The second set of traction lugs consists of traction lugs C63, D64, E65 and F66. Continue to pull the anchor hoist 1 backward until the anchor hoist 1 is above the base platform 4.

[0068] Step Six: Use four jacks to lift the anchor hoist 1. Select the lifting point at the strong frame of the anchor hoist 1 and avoid the bolt connection points on the base platform 4. Remove the working frame 2. After the four jacks are lowered to their maximum stroke at the same time, use the second lifting mechanism to lift the anchor hoist 1 to the installation base and complete the subsequent positioning and installation construction.

[0069] By employing the above steps for the installation and relocation of the anchor winch 1, the influence of the boom 7 can be avoided. By hoisting the anchor winch 1 onto the relocation mechanism and then using a hand-operated hoist to pull the anchor winch 1 above the base platform 4 (i.e., below the anchor winch 1), the problem of being unable to hoist the anchor winch 1 onto the base platform 4 due to interference from the boom 7 is solved. The relocation mechanism of this invention has a simple structure and low cost. Furthermore, this invention uses a hand-operated hoist on the deck 6 to pull the anchor winch 1, avoiding interference from the boom 7 and the difficulty of setting the pulling mechanism above the base platform 4. This invention can achieve the installation of the anchor winch 1 below the boom 7, and is low-cost and easy to operate.

[0070] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A floating crane anchor winch hoisting and relocation system, characterized in that, It includes a shifting mechanism, a crane for hoisting the anchor winch onto the shifting mechanism, a hand-operated hoist for moving the anchor winch backward on the shifting mechanism, and a first lifting mechanism for lifting and lowering the anchor winch on the shifting mechanism; The shifting mechanism includes a working frame and multiple support frames supported on the bottom front end of the working frame. The rear end of the working frame is supported on a base platform. The working frame is provided with a slide rail. The shifting mechanism also includes a slide table that can slide along the slide rail. The slide table is installed on the bottom of the anchor winch. A set of anchor winch lugs is fixed to the anchor winch, and a set of anchor lugs is installed on the deck. Each anchor winch lug and each anchor lug can be connected by ropes. The deck is also equipped with multiple sets of towing lugs, and each anchor winch lug and each set of towing lugs can be connected by a hand chain hoist; The bottom of the slide table is fixed to the left and right ends of the first limiting block on the left and right sides of the slide rail. The work frame includes a horizontal frame, with a plurality of first legs fixed to the front end of the horizontal frame and supported on a support frame, and a plurality of second legs fixed to the rear end of the horizontal frame and supported on a base platform. The anchor winch is equipped with two hand-operated hoists at the front and rear. The first lifting mechanism consists of four jacks supported at the four corners of the anchor winch; The hoisting and shifting system also includes a second hoisting mechanism that hoists and lowers the anchor winch after the first hoisting mechanism has descended to its limit position; The lifting and relocation method of this floating crane anchor winch lifting and relocation system includes the following steps: Step 1: Support the work frame on the support frame and base platform; Step 2: Install the slide on the bottom of the anchor winch, and use a crane to lift the anchor winch to the predetermined position on the work frame; Step 3: Secure the anchor winch lugs to the deck anchoring lugs using ropes, and fix the first limiting block to the slide. Step 4: Four manual chain hoists, four anchor winch lugs, and four sets of traction lugs are set up for each anchor winch lug. The manual chain hoists are used to connect each anchor winch lug to the foremost set of traction lugs. Step 5: Remove the ropes and simultaneously tighten the two hand-operated hoists connected to the two front traction lugs, and simultaneously loosen the two hand-operated hoists connected to the two rear traction lugs. The four hand-operated hoists should be operated slowly in coordination to ensure that the two hand-operated hoists on the left and right are under force at the same time, so as to avoid derailment caused by uneven tension between the two hand-operated hoists. At the same time, pay attention to adjusting and controlling the direction of the anchor hoist's movement. Apply lubricating oil to the slide rail to reduce friction during the movement. As the anchor hoist moves backward, remove the hand-operated hoists from the front set of traction lugs and connect the removed hand-operated hoists to the rear set of traction lugs to continue pulling the anchor hoist backward until the anchor hoist is above the base platform. Step Six: Use four jacks to lift the anchor winch. Select the lifting point at the anchor winch's strong frame and avoid the bolt connection points on the base platform. Remove the working frame. After all four jacks have descended to their maximum stroke, use the second lifting mechanism to lift the anchor winch onto the installation base, completing the subsequent positioning and installation work.

2. The floating crane anchor winch hoisting and shifting system as described in claim 1, characterized in that, The working surface of the work frame is set backward and downward.

3. The floating crane anchor winch hoisting and shifting system as described in claim 1, characterized in that, The top of the slide is provided with a second limiting block that limits the movement of the anchor winch in front of and behind it.

4. The floating crane anchor winch hoisting and shifting system as described in claim 3, characterized in that, The third limiting block of the limiting anchor is fixedly connected to the rear end of the working frame.

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