Ship block leveling and locking device and method

Abstract

The invention discloses a ship block leveling and locking device and method.The device comprises a base unit and a jacking unit, the base unit comprises a bottom plate and a supporting frame vertically fixed to the upper surface of the bottom plate, a lifting mechanism can be placed in the supporting frame, and the jacking unit comprises a top plate with the length larger than the outer diameter of the supporting frame; when the lifting mechanism is not jacked, the top plate is placed at the top end of the supporting frame, a threaded hole is vertically formed in the top plate, the screw penetrates through the threaded hole to be in threaded connection with the top plate, the screw is arranged over the jacking end of the lifting mechanism, and the lifting mechanism can jack the screw. The ship block leveling and locking device is adopted in the ship block leveling and locking method. The occupation rate of the lifting mechanism can be reduced, the cost is reduced, the subsection jacking fine adjustment precision of the ship is guaranteed, the subsection shelving and leveling time is shortened, and the construction efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, and particularly relates to a ship section leveling and locking device and method. Background Art

[0002] During the overall assembly and hoisting process of ship sections, after a large crane hoists a section to the designated overall assembly position, due to the limitations of equipment performance, only preliminary positioning can be carried out. Due to equipment precision limitations, tools such as jacks and three-dimensional adjustment machines are usually needed for fine adjustment of the level. Currently, there are mainly three common fine adjustment methods in shipyards: one is to directly use jacks for adjustment and keep the jacks in place until docking and mating, resulting in high equipment occupancy rate and increased procurement costs; the second is to temporarily weld support pieces to replace the jacks after the jacks are lifted, but the welding operation efficiency is low and the labor intensity is high; the third is to add special tooling supports such as steel piers near the jacks after the jacks are lifted to the required position. Although the jacks can be released, it increases the demand for dock pier tooling parts and the installation workload. Summary of the Invention

[0003] Aiming at the defects existing in the prior art, the present application provides a ship section leveling and locking device and method to solve the technical problems such as high equipment occupancy rate, high procurement cost, low welding operation efficiency, high labor intensity, or large dock pier tooling parts and installation workload during the overall assembly and hoisting process of ship sections in the prior art.

[0004] In order to achieve the above object of the invention, the technical solution provided by the present invention is as follows:

[0005] A ship section leveling and locking device includes a base unit and a jacking unit. The base unit includes a bottom plate and a support frame vertically fixed on the upper surface of the bottom plate. An elevating mechanism can be placed inside the support frame. The jacking unit includes a top plate. The length of the top plate is greater than the outer diameter of the support frame. When the elevating mechanism is not jacking, the top plate is placed on the top of the support frame. A threaded hole is vertically provided on the top plate, and a screw passes through the threaded hole and is threadedly connected to the top plate. The screw is disposed directly above the jacking end of the elevating mechanism, and the elevating mechanism can jack the screw.

[0006] In one embodiment, the support frame includes four surrounding plates on the front, rear, left, and right. The four surrounding plates enclose a hollow tube with a square cross-section. Elbow plates are fixedly provided on the outer walls of the left and right surrounding plates. One side of the elbow plate is vertically fixed to the outer wall of the surrounding plate, and the other side of the elbow plate is vertically fixed to the upper surface of the bottom plate. There is a gap between the front surrounding plate and / or the rear surrounding plate and the bottom plate, and the elevating mechanism can enter and exit the support frame through the gap.

[0007] In one embodiment, the surrounding plates and the bottom plate are welded together, and the elbow plates are welded to the surrounding plates and the bottom plate.

[0008] In one embodiment, the lifting unit further includes a limit cylinder fixed to the lower surface of the top plate, and the limit cylinder is slidably connected to the support frame.

[0009] In one embodiment, when the jacking end of the lifting mechanism jacks up to the maximum stroke, there is an overlapping distance between the limit cylinder and the support frame.

[0010] In one embodiment, the limit cylinder is arranged inside the support frame, and there is a sliding gap of 2-4 mm between the outer wall of the limit cylinder and the inner wall of the enclosing plate.

[0011] In one embodiment, the thickness of the top plate is 40-60 mm, the threads in the threaded holes are drilled according to the screw rod, and the threads in the threaded holes are serrated threads.

[0012] In one embodiment, a nut is fixedly arranged at the top end of the screw rod, and the threaded length of the screw rod is greater than the jacking stroke length of the lifting mechanism.

[0013] This application also discloses a method for leveling and locking a ship section, using the ship section leveling and locking device as described above, including the following steps:

[0014] Step 1: Place the ship section leveling and locking device under the section, place the lifting mechanism in the support frame, rotate the top plate so that the top plate is located at the top end of the screw rod, place the screw rod in the lifting unit directly above the jacking end of the lifting mechanism, and make the top plate closely contact the top end of the support frame;

[0015] Step 2: The jacking end of the lifting mechanism rises, and the jacking end pushes the screw rod up to jack the section to the required height, and the top plate separates from the top end of the support frame;

[0016] Step 3: Rotate the top plate so that the top plate descends along the screw rod until the top plate closely contacts the top end of the support frame;

[0017] Step 4: The jacking end of the lifting mechanism descends, the jacking end disengages from the lower end of the screw rod, the load borne by the top plate is transmitted to the support frame, and the lifting mechanism is taken out of the base unit.

[0018] Compared with the prior art, this application has at least the following beneficial effects:

[0019] In the ship section leveling and locking device and method of the present application, the lifting mechanism can be placed inside the ship section leveling and locking device. After the lifting mechanism jacks up the section to the required height through the screw, the jacking end of the lifting mechanism is disengaged from the lower end of the screw, and the load borne by the top plate is transmitted to the support frame. Then, the lifting mechanism is taken out from the base unit. Without welding support parts or adding dock pier tooling, the occupancy rate of the lifting mechanism can be reduced, and the procurement cost of the lifting mechanism can be lowered. Through the ship section leveling and locking method of the present application, not only the positioning accuracy after fine adjustment of section jacking is ensured not to shift, but also the section laying and leveling time is greatly shortened, further improving the construction efficiency. Brief Description of the Drawings

[0020] Figure 1 It is the top view of the ship section leveling and locking device in the embodiment of the present application;

[0021] Figure 2 It is the side view of the ship section leveling and locking device in the embodiment of the present application;

[0022] Figure 3 It is Figure 1 the A-A cross-sectional view of

[0023] Figure 4 It is Figure 2 the view in the B direction of

[0024] Figure 5 It is the schematic diagram of the ship section leveling and locking method in the embodiment of the present application.

[0025] Brief Description of the Drawings: 1. Lifting mechanism; 2. Base unit; 201. Bottom plate; 202. Support frame; 203. Gusset plate; 3. Lifting unit; 301. Limiting cylinder; 302. Top plate; 303. Screw; 304. Nut. Detailed Description of the Preferred Embodiments

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be described through specific embodiments shown in the drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0027] The terms used in the present disclosure are merely for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The singular forms "a", "the", and "said" used in the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0028] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0029] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a mechanical connection, or it may be the communication inside two components. It may be directly connected, or it may be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] For a better understanding of the technical solution of the present invention, the present invention will be described in detail below in conjunction with specific embodiments.

[0031] This application provides a ship section leveling and locking device, as Figures 1 to 4 shown, which includes a base unit 2 and a jacking unit 3. The base unit 2 includes a bottom plate 201 and a support frame 202 vertically fixed on the upper surface of the bottom plate 201. A lifting mechanism 1 can be placed inside the support frame 202. The jacking unit 3 includes a top plate 302. The length of the top plate 302 is greater than the outer diameter of the support frame 202. When the lifting mechanism 1 is not jacking, the top plate 302 is placed on the top of the support frame 202. A threaded hole is vertically provided on the top plate 302. A screw rod 303 passes through the threaded hole and is threadedly connected to the top plate 302. The screw rod 303 is arranged directly above the jacking end of the lifting mechanism 1, and the lifting mechanism 1 can jack the screw rod 303.

[0032] The support frame 202 includes four surrounding plates on the front, back, left, and right. The four surrounding plates enclose a hollow tube with a square cross-section. To improve the support strength of the support frame 202, gussets 203 are fixedly arranged on the outer walls of the left surrounding plate and the right surrounding plate. One side of the gusset 203 is vertically fixed to the outer wall of the surrounding plate, and the other side of the gusset 203 is vertically fixed to the upper surface of the bottom plate 201. There is a gap between the front surrounding plate and / or the rear surrounding plate and the bottom plate 201, and the lifting mechanism 1 can enter and exit the support frame 202 through the gap. In this embodiment, the left surrounding plate, the right surrounding plate, and the bottom plate 201 are all welded together, and the gussets 203 are welded to the surrounding plates and the bottom plate. The fillet weld between the bottom plate 201 and the surrounding plate is a full penetration weld, and the fillet weld between the gusset 203 and the bottom plate 201 and the surrounding plate is a partial penetration weld.

[0033] To prevent the lifting unit 3 from buckling and overturning during the jacking force application process, the lifting unit 3 further includes a limiting cylinder 301 fixed to the lower surface of the top plate 302. The limiting cylinder 301 is slidably connected to the support frame 202. When the jacking end of the lifting mechanism 1 reaches the maximum stroke, there is an overlapping distance between the limiting cylinder 301 and the support frame 202. In this embodiment, the limiting cylinder 301 is arranged inside the support frame 202, and there is a 3-mm sliding gap between the outer wall of the limiting cylinder 301 and the inner wall of the surrounding plate. The vertical length of the limiting cylinder 301 is equal to the vertical length of the surrounding plate with a gap between it and the bottom plate. The top plate 302 and the limiting cylinder 301 are fixedly connected by full penetration fillet welding, and the fillet welds on the outside of the top plate 302 are ground smooth to ensure a sliding gap between the limiting part and the surrounding plate.

[0034] The thickness of the top plate 302 is 40 - 60 mm. In this embodiment, the thickness of the top plate 302 is 50 mm. The threads in the threaded holes are drilled according to the screw rod 303, and the threads in the threaded holes are serrated threads to increase the bearing capacity. A nut 304 is fixedly arranged at the top end of the screw rod 303 to protect the screw rod 303 and facilitate the replacement and daily maintenance of the screw rod 303. The threaded length of the screw rod 303 is greater than the jacking stroke length of the lifting mechanism 1, so as to ensure that the lifting mechanism 1 can exert its effective maximum stroke. In this embodiment, the lifting mechanism is a jack.

[0035] This application also provides a method for leveling and locking a ship section, as Figure 5 shown. Using the above ship section leveling and locking device, it includes the following steps:

[0036] Step 1: Place the ship section leveling and locking device under the section, place the lifting mechanism 1 in the support frame 202, rotate the top plate 302 so that the top plate 302 is located at the top end of the screw rod 303, place the screw rod 303 in the lifting unit 3 directly above the jacking end of the lifting mechanism 1, and make the top plate 302 closely contact the top end of the support frame 202.

[0037] Step 2: The jacking end of the lifting mechanism 1 rises, and the jacking end pushes the screw rod 303 upward to jack the section to the required height, and the top plate 302 separates from the top end of the support frame 202.

[0038] Step 3: Rotate the top plate 302 so that the top plate 302 descends along the screw rod 303 until the top plate 302 closely contacts the top end of the support frame 202.

[0039] Step 4: The jacking end of the lifting mechanism 1 descends, the jacking end disengages from the lower end of the screw rod 303, the load borne by the top plate is transmitted to the support frame 202, and the lifting mechanism is taken out from the base unit.

[0040] In this embodiment, the distance between the lower end of the screw rod 303 and the upper end of the jacking end of the lifting mechanism 1 in Step 1 is 5 - 10 mm.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the invention or perform equivalent replacements on some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A ship section leveling and locking device, characterized in that It includes a base unit and a lifting unit. The base unit includes a bottom plate and a support frame vertically fixed on the upper surface of the bottom plate. A lifting mechanism can be placed inside the support frame. The lifting unit includes a top plate. The length of the top plate is greater than the outer diameter of the support frame. When the lifting mechanism is not lifted, the top plate is placed at the top of the support frame. A threaded hole is vertically provided on the top plate, and a screw rod passes through the threaded hole and is threadedly connected to the top plate. The screw rod is directly above the lifting end of the lifting mechanism, and the lifting mechanism can lift the screw rod.

2. The ship section leveling and locking device according to claim 1, characterized in that, The support frame includes four enclosing plates at the front, rear, left, and right. The four enclosing plates enclose a hollow tube with a square cross-section. Gussets are fixedly provided on the outer walls of the left enclosing plate and the right enclosing plate. One side of the gusset is vertically fixed on the outer wall of the enclosing plate, and the other side of the gusset is vertically fixed on the upper surface of the bottom plate. There is a gap between the front enclosing plate and / or the rear enclosing plate and the bottom plate, and the lifting mechanism can enter and exit the support frame through the gap.

3. The ship section leveling and locking device according to claim 2, characterized in that, The enclosing plate and the bottom plate are welded together, and the gusset and the enclosing plate, bottom plate are welded together.

4. The ship segment leveling and locking device according to claim 1, characterized in that: The lifting unit further includes a limiting cylinder fixed on the lower surface of the top plate. The limiting cylinder is slidably connected to the support frame.

5. The ship segment leveling and locking device according to claim 4, characterized in that: When the lifting end of the lifting mechanism reaches the maximum stroke, there is an overlapping distance between the limiting cylinder and the support frame.

6. The ship section leveling and locking device according to claim 4, characterized in that, The limiting cylinder is arranged inside the support frame, and there is a sliding gap of 2-4 mm between the outer wall of the limiting cylinder and the inner wall of the enclosing plate.

7. The ship section leveling and locking device according to claim 1, characterized in that, The thickness of the top plate is 40-60 mm. The thread in the threaded hole is drilled according to the screw rod, and the thread in the threaded hole is a serrated thread.

8. The ship section leveling and locking device according to claim 1, characterized in that, A nut is fixedly provided at the top end of the screw rod, and the threaded length of the screw rod is greater than the lifting stroke length of the lifting mechanism.

9. A method for leveling and locking a ship section, characterized in that, When using the ship section leveling and locking device according to any one of claims 1-8, it includes the following steps: Step 1: Place the ship section leveling and locking device under the section. Place the lifting mechanism inside the support frame. Rotate the top plate so that the top plate is located at the top of the screw rod. Place the screw rod in the lifting unit directly above the lifting end of the lifting mechanism, and make the top plate in close contact with the top of the support frame. Step 2: The lifting end of the lifting mechanism rises, and the lifting end pushes the screw rod upward to lift the section to the required height, and the top plate is separated from the top of the support frame. Step 3: Rotate the top plate so that the top plate descends along the screw rod until the top plate is in close contact with the top of the support frame. Step 4: The lifting end of the lifting mechanism descends, and the lifting end is separated from the lower end of the screw rod. The load borne by the top plate is transmitted to the support frame, and the lifting mechanism is taken out of the base unit.

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