Shipboard lifting device and lifting method

Abstract

The present invention discloses a shipboard lifting device and a lifting method, comprising a gravity block, a fixing ring is installed on the outer wall of the gravity block, the inner circumferential wall of the fixing ring abuts against the outer circumferential wall, the gravity block and the fixing ring are coaxially arranged, a ring channel 1 is provided on the radial inner side of the fixing ring, the ring channel 1 is arranged along the circumferential direction of the gravity block, the ring channel 1 is slidably connected with three sliders, the sliders can slide along the ring channel 1 with the axis of the fixing ring as the central axis, the sliders include an extension part, the extension part extends out of the fixing ring, the bottom of the gravity block can abut against the shipboard, three fixing seats 2 are installed on the upper end of the shipboard, the fixing seat 2 and the extension part are connected through a rope body 1, the two ends of the rope body 1 are respectively fixedly connected to the fixing seat 2 and the extension part, and the extension part is located higher than the shipboard. The present invention provides a shipboard lifting device and a lifting method, the shipboard is not easy to be relatively twisted in the horizontal plane direction, so as to maintain the orientation of the shipboard for easy installation on the hull.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting equipment, and in particular to a shipboard lifting device and a lifting method. Background Art

[0002] In the shipbuilding process, a crane with a fixed position is required to lift the steel shipboard to the hull for installation. Draw rope connection seats are set at multiple positions on the upper end of the shipboard and connected to draw ropes. The end of each draw rope away from the shipboard is fixed to the crane hook. The upper end of the crane hook is connected to a pull rod, which can move up and down and can move horizontally under the action of the drive device. Before lifting, the shipboard is placed on the auxiliary template. The installation position of the shipboard on the auxiliary template is the same as the installation position of the shipboard on the hull. The orientation of the shipboard is controlled in advance to improve the assembly efficiency of the shipboard on the hull. Since the shipboard is suspended on the crane hook after lifting, the shipboard is in a suspended state, and the shipboard is easily deflected in the horizontal plane, which causes inconvenience when transferring to the hull. Summary of the invention

[0003] The object of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a shipboard lifting device and a lifting method, in which the shipboard is not easily twisted relative to the horizontal plane, thereby maintaining the orientation of the shipboard for easy installation on the hull.

[0004] The present invention discloses a ship plate lifting device, comprising a gravity block, a fixing ring is installed on the outer wall of the gravity block, the inner circumferential wall of the fixing ring abuts against the outer circumferential wall, the gravity block and the fixing ring are coaxially arranged, a ring channel one is provided on the radial inner side of the fixing ring, the ring channel one is arranged along the circumferential direction of the gravity block, the ring channel one is slidably connected with three sliding blocks, the sliding blocks can slide along the ring channel one with the axis of the fixing ring as the central axis, the sliding block comprises an extension part, the extension part extends out of the fixing ring, the bottom of the gravity block can abut against the ship plate, three fixing seats two are installed on the upper end of the ship plate, the fixing seat two and the extension part are connected by a rope body one, the two ends of the rope body one are respectively fixedly connected to the fixing seat two and the extension part, and the extension part is located higher than the ship plate.

[0005] Furthermore, the gravity block is installed with a sleeve, a ring is installed on the top of the sleeve, a guide part is provided on the top of the ring, the guide part is located between the extension part and the second fixed seat, the rope body one includes a rope body connecting section, the rope body connecting section passes along the outer wall of the guide part, bypasses the top of the guide part and is fixedly connected to the extension part.

[0006] Furthermore, a connecting section of the rope body is arranged horizontally.

[0007] Furthermore, it also includes a bracket body, which is located above the gravity block. The bracket body includes three extension rods. A fixing seat 1 corresponding to the extension rods is installed on the top of the gravity block. The extension rods and the corresponding fixing seat 1 are connected by a rope body 2. The two ends of the rope body 2 are respectively fixedly connected to the extension rods and the fixing seat 1. The bracket body is provided with a through hole 1, which passes through the bracket body horizontally.

[0008] Furthermore, the fixed connection points of the rope body 2 and the corresponding extension rod are located on the same horizontal circumference, and the fixed connection points of the rope body 2 and the corresponding fixing seat 1 are also located on the same horizontal circumference.

[0009] Furthermore, the bracket body is installed with a hook, and the hook passes through the through hole 1 so that the bracket body is hung on the hook.

[0010] Furthermore, the through hole 1 includes a wall surface at the upper end, and the hook is provided with an inner concave surface, and the upper end of the inner concave surface abuts against the wall surface.

[0011] Furthermore, the support body is equipped with an insertion rod, which passes through the support body along a radial direction of the through hole, and passes through the hook.

[0012] The present invention also discloses a lifting method of a shipboard lifting device, using the shipboard lifting device, comprising the following lifting steps:

[0013] ① Tie one end of the rope body 1 to the corresponding fixing seat 2 and fix it. After the rope body 1 is tightened, the end of the rope body 1 away from the fixing seat 2 is knotted and fixed to the extension part. After the rope body 1 is knotted, it is kept in a tightened state. When the rope body 1 is tightened, the sliding part slides along the loop 1 to the closest distance to the fixing seat 2. At the same time, the rope body 1 lifts the ship board upwards to increase the force between the bottom surface of the gravity block and the upper end surface of the ship board;

[0014] ② Pull up the gravity block and the shipboard at the same time.

[0015] Beneficial effects of the present invention:

[0016] 1. Since the sliding part can slide along the loop 1 in a circular manner, when the rope body 1 is tightened, the sliding part slides along the loop 1 to the closest distance to the fixing seat 2, and at the same time, the rope body 1 lifts the shipboard upward, and the force between the bottom surface of the gravity block and the upper end surface of the shipboard increases to prevent the bottom surface of the gravity block and the upper end surface of the shipboard from being relatively misaligned. And when the gravity block and the shipboard are pulled up, since the sliding parts at both ends of the rope body 1 and the fixing seat 2 are already in a state of closest distance relationship, it is not easy for the shipboard and the gravity block to be relatively twisted in the horizontal direction, thereby maintaining the orientation of the shipboard for easy installation on the hull.

[0017] 2. The first connecting section of the rope body is arranged horizontally, so that when the first connecting section of the rope body pulls the extension part outward, the wall surface of the sliding part and the inner wall of the second ring part are pressed against each other, and the contact surface between the wall surface of the sliding part and the inner wall of the second ring part is subjected to uniform force, thereby preventing the local contact surface from being subjected to excessive force and causing large deformation, thereby improving the service life of the slider and the fixed ring.

[0018] 3. By placing the gravity block near the center of gravity of the shipboard, the gravity block and the shipboard are connected as one, and the center of gravity is near the position of the gravity block. When the gravity block is pulled up, the inclination degree of the gravity block and the shipboard is greatly reduced, thereby improving the safety of the transfer work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a cross-sectional view of an embodiment;

[0020] Figure 2 It is a cross-sectional view of the cooperation between the slider and the ring channel 1 in the embodiment;

[0021] Figure 3 for Figure 1 The enlarged view of point A in the middle;

[0022] Figure 4 for Figure 1 Middle P view;

[0023] Figure 5 for Figure 1 The enlarged view of point B in the middle;

[0024] Figure 6 for Figure 5 Sectional view along the MM direction.

[0025] Figure numerals: gravity block 1, fixed seat 11, sleeve body 2, ring 21, guide part 211, fixed ring 3, ring body 31, ring part 1 311, ring part 2 312, ring channel 1 32, ring channel 2 33, slider 4, sliding part 41, extension part 42, rope body 1 5, rope body 1 connecting section 51, fixed seat 2 6, rope body 2 7, bracket body 8, extension rod 81, through hole 1 82, wall surface 821, threaded hole 83, through hole 2 84, inserted rod 85, hook 9, inner concave surface 91, ship board 101, pull rod 102. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in this embodiment to clearly and completely describe the technical solution in this embodiment. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] like Figure 1 As shown, a shipboard lifting device includes a weight block 1 and a bracket body 8. The bracket body 8 is located above the weight block 1. The main body of the weight block 1 is a cylindrical structure. The weight block 1 is made of iron material. A fixing seat 11 is installed on the top of the weight block 1. Figure 4 ( Figure 4 for Figure 1 (P direction view), there are three fixing seats 11, and the three fixing seats 11 are located on the same circumference.

[0028] like Figure 5As shown, the bracket body 8 is equipped with a hook 9. Specifically, the bracket body 8 is provided with a through hole 82, which runs horizontally through the bracket body 8. The hook 9 passes through the through hole 82. The through hole 82 includes a wall surface 821 at the upper end. The wall surface 821 is a circular arc surface convex downward. The hook 9 is provided with an inner concave surface 91. The upper end of the inner concave surface 91 abuts against the wall surface 821, so that the bracket body 8 is hung on the hook 9 and prevents the bracket body 8 and the hook 9 from rotating relative to each other in the horizontal plane. The upper end of the hook 9 is connected to a pull rod 102. The pull rod 102 can move up and down under the drive of the crane device to move the hook 9 up and down, and the top of the pull rod 102 is connected to a guide rail so that the pull rod 102 can move in the horizontal direction to transfer the components on the hook 9 to the hull.

[0029] like Figure 5 As shown, the bracket body 8 is provided with a threaded hole 83 and a second through hole 84. The threaded hole 83 is a threaded hole, and the second through hole 84 is a through hole. The threaded hole 83 is located below the first through hole 82, and the second through hole 84 is located above the first through hole 82. The bracket body 8 is installed with an insertion rod 85. The insertion rod 85 is inserted into the threaded hole 83 from the bottom of the bracket body 8 and passes through the first through hole 82 radially, and finally inserted into the second through hole 84. When the insertion rod 85 passes through the first through hole 82, it also passes through the hook 9. Since the bracket body 8 is hung on the inner concave surface 91 of the hook 9 after being pulled down by the gravity of the heavy object, the insertion rod 85 is provided to prevent the bracket body 8 and the hook 9 from sliding and dislocating on the horizontal plane, thereby improving the safety of the equipment during operation.

[0030] like Figure 1 , 5 As shown, the support body 8 includes an extension rod 81, which extends radially outward from the bottom of the support body 8. Figure 6 There are three extension rods 81 and they are evenly distributed along the outer periphery of the bottom of the bracket body 8. The extension rods 81 correspond to the fixing seats 11 one by one, and the extension rods 81 and the corresponding fixing seats 11 are connected through the rope body 2 7. The two ends of the rope body 2 7 are fixedly connected to the extension rod 81 and the fixing seat 11 respectively. The fixed connection points of the rope body 2 7 and the corresponding fixing seat 11 are located on the same horizontal circumference, and the fixed connection points of the rope body 2 7 and the corresponding extension rod 81 are also located on the same horizontal circumference. The lengths of the rope bodies 2 7 are the same, so that when the gravity block 1 is lifted by the rope body 2 7 alone, the gravity block 1 can maintain balance without tilting.

[0031] like Figure 1 As shown, the bottom of the gravity block 1 is provided with a boss extending radially outward, and a sleeve 2 is fixedly installed on the upper end of the boss. The sleeve 2 is inserted into the gravity block 1, and the bottom of the sleeve 2 abuts against the boss at the bottom of the gravity block 1. Figure 3 A collar 21 is installed on the top of the sleeve body 2. The collar 21 is a circular ring structure. The lower end surface of the collar 21 abuts against the upper end surface of the sleeve body 2. A guide portion 211 is provided on the top of the collar 21. The guide portion 211 is a semicircular arc structure protruding upward.

[0032] like Figure 1 , Figure 3 As shown, a fixing ring 3 is fixedly installed on the outer wall of the gravity block 1, and the fixing ring 3 is inserted into the gravity block 1. The inner wall of the fixing ring 3 abuts against the outer wall of the gravity block 1. The gravity block 1 and the fixing ring 3 are coaxially arranged, and the fixing ring 3 is located above the sleeve 2. Figure 3 As shown, the fixing ring 3 includes two ring bodies 31 arranged opposite to each other in the upper and lower parts, the ring body 31 includes a ring portion 1 311 located on the side close to the gravity block 1 and a ring portion 2 312 located away from the side of the gravity block 1, an annular ring channel 1 32 is formed between the upper and lower ring portions 1 311, the ring channel 1 32 is arranged along the circumferential direction of the gravity block 1, an annular ring channel 2 33 is formed between the upper and lower ring portions 2 312, and the distance between the upper and lower ends of the ring channel 2 33 is smaller than the distance between the upper and lower ends of the ring channel 1 32.

[0033] like Figure 3 As shown, the ring track 1 32 is slidably connected with a slider 4, and the slider 4 is provided with 3 Figure 2 The slider 4 includes a sliding portion 41 and an extension portion 42. The sliding portion 41 is located in the ring track 1 32. The upper and lower heights of the sliding portion 41 match the distance between the upper and lower ends of the ring track 1 32. The sliding portion 41 can slide along the ring track 1 32 with the axis of the fixed ring 3 as the central axis. The wall surface of the sliding portion 41 close to the ring track 2 312 is in contact with the inner wall of the ring track 2 312. The extension portion 42 passes through and extends out of the fixed ring 3. The upper and lower heights of the extension portion 42 match the distance between the upper and lower ends of the ring track 2 33.

[0034] like Figure 1 , Figure 4 As shown, the bottom of the gravity block 1 can abut against the shipboard 101, and three fixing seats 2 6 are installed on the upper end of the shipboard 101. The fixing seats 2 6 and the extension part 42 are connected through a rope body 1 5. The two ends of the rope body 1 5 are respectively fixedly connected to the fixing seats 2 6 and the extension part 42, and the extension part 42 is located higher than the shipboard 101.

[0035] like Figure 3 As shown, the guide portion 211 is located between the extension portion 42 and the second fixing seat 6, and the rope body 1 5 includes a rope body 1 connecting section 51, which is located on the side of the rope body 1 5 close to the extension portion 42, and the rope body 1 connecting section 51 goes around the top of the guide portion 211 along the outer wall of the guide portion 211 and is fixedly connected to the extension portion 42. The rope body 1 connecting section 51 is arranged horizontally, so that when the rope body 1 connecting section 51 pulls the extension portion 42 outward, the wall surface of the sliding portion 41 and the inner wall of the second ring portion 312 are pressed against each other, and the contact surface between the wall surface of the sliding portion 41 and the inner wall of the second ring portion 312 is subjected to uniform force, so as to prevent the local contact surface from being subjected to excessive force and causing large deformation, thereby improving the service life of the slider 4 and the fixing ring 3.

[0036] The lifting method of the above-mentioned shipboard lifting device is as follows:

[0037] ① Such as Figure 1 As shown, the pull rod 102 descends and drives the hook 9 to fall, as shown in FIG. Figure 5 As shown, the hook 9 passes through the through hole 1 82, the bracket body 8 is hung on the hook 9, the insertion rod 85 is inserted from the bottom of the bracket body 8 and passes through the hook 9, and the upper part of the insertion rod 85 is inserted into the through hole 2 84, so that the bracket body 8 and the hook 9 are firmly connected.

[0038] ② If Figure 1 As shown, the two ends of the rope body 2 7 are connected to the extension rod 81 and the fixing seat 1 1 respectively.

[0039] ③ The hook 9 lifts the weight block 1 and transfers it to the top of the shipboard 101 in the auxiliary template. The bottom surface of the weight block 1 abuts against the upper end surface of the shipboard 101 and a rubber pad is installed between the two. The rubber pad is fixed to the bottom surface of the weight block 1 to increase the friction between the bottom surface of the weight block 1 and the upper end surface of the shipboard 101. The auxiliary template plays a positioning role for the shipboard 101. The installation position of the shipboard 101 on the auxiliary template is the same as the installation position of the shipboard 101 on the hull. By pre-controlling the orientation of the shipboard 101, the assembly efficiency of the shipboard 101 on the hull is improved. The position of the gravity block 1 is close to the center of gravity of the shipboard 101. The center of gravity of shipboards 101 of different sizes and dimensions are different. By placing the gravity block 1 near the center of gravity of the shipboard 101, the gravity block 1 and the shipboard 101 are connected as one, and the center of gravity is near the position of the gravity block 1. When the gravity block 1 is pulled up, the inclination degree of the gravity block 1 and the shipboard 101 is greatly reduced, thereby improving the safety of the transportation work.

[0040] ④ Such as Figure 1 , Figure 3 As shown, one end of the rope body 15 is knotted and fixed on the corresponding fixing seat 26, and the rope body 1 connecting section 51 of the rope body 15 away from the fixing seat 26 is passed along the outer wall of the guide part 211 around the top of the guide part 211 and is knotted and fixed with the extension part 42 (the rope body 15 is tightened before knotting), and the rope body 1 connecting section 51 is kept horizontal. Since the sliding part 41 can slide along the ring channel 132 in an annular manner, when the rope body 15 is tightened, the sliding part 41 slides along the ring channel 132 to the closest distance to the fixing seat 26, and at the same time, the rope body 15 lifts the shipboard 101 upward, and the force between the bottom surface of the gravity block 1 and the upper end surface of the shipboard 101 increases, so as to prevent the bottom surface of the gravity block 1 and the upper end surface of the shipboard 101 from being relatively misaligned.

[0041] ⑤ The hook 9 rises and pulls up the gravity block 1 and the shipboard 101 at the same time. In the horizontal plane direction, the shipboard 101 is not easy to twist. When the shipboard 101 is transferred to the hull, it can be aligned with the installation position and dropped for installation.

[0042] When the gravity block 1 and the ship's deck 101 are pulled up, since the sliding parts 41 at both ends of the rope body 5 and the fixed seat 2 6 are already at the closest distance, it is not easy for relative twisting to occur between the ship's deck 101 and the gravity block 1 in the horizontal plane, thereby maintaining the orientation of the ship's deck 101 for easy installation on the hull.

[0043] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A shipboard lifting device, characterized in that: The invention comprises a gravity block (1), wherein a fixing ring (3) is installed on the outer wall of the gravity block (1), the inner wall of the fixing ring (3) is in contact with the outer wall of the gravity block (1), the gravity block (1) and the fixing ring (3) are coaxially arranged, a ring channel (32) is arranged on the radial inner side of the fixing ring (3), the ring channel (32) is arranged along the circumferential direction of the gravity block (1), and the ring channel (32) is slidably connected to three sliders (4), and the sliders (4) can be slidably connected to the ring channel (3) with the axis of the fixing ring (3) as the central axis along the ring channel (3). 2) sliding, the slider (4) comprises an extension part (42), the extension part (42) extends out of the fixing ring (3), the bottom of the gravity block (1) can abut against a ship board (101), the upper end of the ship board (101) is equipped with three fixing seats (2) (6), the fixing seats (2) (6) and the extension part (42) are connected through a rope body (5), the two ends of the rope body (5) are respectively fixedly connected to the fixing seat (2) (6) and the extension part (42), and the extension part (42) is located higher than the ship board (101); The gravity block (1) is installed with a sleeve (2), a collar (21) is installed on the top of the sleeve (2), a guide portion (211) is provided on the top of the collar (21), the guide portion (211) is located between the extension portion (42) and the second fixing seat (6), the rope body (5) comprises a rope body first connecting section (51), the rope body first connecting section (51) goes around the top of the guide portion (211) along the outer wall of the guide portion (211) and is fixedly connected to the extension portion (42); The rope body has a connecting section (51) which is arranged horizontally.

2. A shipboard lifting device according to claim 1, characterized in that: The invention also comprises a support body (8), wherein the support body (8) is located above the gravity block (1), the support body (8) comprises three extension rods (81), a fixing seat (11) corresponding to the extension rods (81) is installed on the top of the gravity block (1), the extension rods (81) and the corresponding fixing seat (11) are connected via a rope body (7), the two ends of the rope body (7) are respectively fixedly connected to the extension rods (81) and the fixing seat (11), and the support body (8) is provided with a through hole (82), and the through hole (82) passes through the support body (8) in a horizontal direction.

3. A shipboard lifting device according to claim 2, characterized in that: The fixed connection points of the rope body 2 (7) and the corresponding extension rod (81) are located on the same horizontal circumference, and the fixed connection points of the rope body 2 (7) and the corresponding fixing seat 1 (11) are also located on the same horizontal circumference.

4. A shipboard lifting device according to claim 2, characterized in that: The support body (8) is equipped with a hook (9), and the hook (9) passes through the through hole 1 (82) so that the support body (8) is hung on the hook (9).

5. A shipboard lifting device according to claim 4, characterized in that: The through hole 1 (82) comprises a wall surface (821) located at the upper end, and the hook (9) is provided with an inner concave surface (91), and the upper end of the inner concave surface (91) abuts against the wall surface (821).

6. A shipboard lifting device according to claim 4, characterized in that: The support body (8) is installed with an insertion rod (85), the insertion rod (85) radially passes through the support body (8) along the through hole 1 (82), and the insertion rod (85) passes through the hook (9).

7. A lifting method of a shipboard lifting device, using a shipboard lifting device according to any one of claims 1 to 6, characterized in that: The lifting steps include the following: ① One end of the rope body 1 (5) is knotted and fixed on the corresponding fixing seat 2 (6); after the rope body 1 (5) is tightened, one end of the rope body 1 (5) away from the fixing seat 2 (6) is knotted and fixed to the extension portion (42); the slider (4) comprises a sliding portion (41); when the rope body 1 (5) is tightened, the sliding portion (41) slides along the ring channel 1 (32) to the closest distance to the fixing seat 2 (6); at the same time, the rope body 1 (5) lifts the shipboard (101) upwards, so that the acting force between the bottom surface of the gravity block (1) and the upper end surface of the shipboard (101) is increased; ② Pull up the gravity block (1) and the shipboard (101) simultaneously.

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