Simple underwater lifting device for buoyancy tank assembly ship
By integrating load-bearing steel beams, hydraulic jacks and anchor cranes on floating box assembly ships, the problem of super-large tonnage underwater hoisting in the case of no large floating gondolas in inland rivers, lakes, reservoirs and other areas is solved, and the problem of super-large tonnage underwater hoisting is achieved, achieving simplicity and economical And safe lifting operation.
Patent Information
- Application Number
- CN202420783833.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-04-16
AI Technical Summary
In the drinking water source protection areas such as inland rivers, lakes, and reservoirs, there is a lack of large floating gondolas and water-operated ships, resulting in high cost and long construction periods of underwater lifting, making it difficult to complete super-large tonnage underwater lifting.
Design a simple underwater lifting device for assembling floating boxes, including assembling floating boxes, load-bearing steel beams, hydraulic jacks, crimping anchors and power devices. Accurate positioning and lifting is achieved through assembling floating boxes and crimping anchors, and hydraulic jacks are used to provide lifting. to ensure the stability and safety of the hoisting object.
It realizes super-large tonnage underwater lifting without large floating gondolas, reduces costs and construction periods, improves the economic value and universal practicality of lifting operations, and ensures the safety and stability of the lifting process.
Smart Images
Figure CN222331402U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of underwater hoisting, in particular to a simple underwater lifting device for a floating box assembly ship. Background Art
[0002] As people's pursuit of a better life continues to improve, in recent years, many documents, regulations, and specifications of the Ministry of Water Resources have required cities to establish emergency water sources or backup water sources and actively coordinate dual water sources to ensure water for living and production; drinking water source protection areas in many cities across the country are located in inland rivers, lakes, and reservoirs. Cage farming, tourism, swimming, fishing, or other activities that may pollute drinking water bodies are prohibited in drinking water source protection areas. Generally, there are no large floating cranes and it is extremely difficult for large water operation vessels to enter; however, the content of underwater operations involved in water conservancy and municipal engineering is increasing. As the comprehensiveness and complexity of the projects continue to increase, underwater lifting operations have gradually become the norm.
[0003] Water and underwater lifting operations generally use large floating cranes or pontoon assembly ships (platforms) to install gantry cranes for lifting operations. However, there are no large floating cranes in the drinking water source protection areas of inland rivers, lakes, and reservoirs. The cost of installing gantry cranes on a separate pontoon assembly ship (platform) for underwater lifting operations is high and the construction period is long. Summary of the invention
[0004] The utility model aims to overcome the defects of the prior art and provide a simple underwater lifting device for a pontoon assembly ship, which solves the underwater lifting problem in inland rivers, lakes and reservoirs that large floating cranes cannot enter, and in particular can smoothly complete underwater lifting operations of ultra-large tonnage and has good economic value.
[0005] In order to solve the above technical problems, the utility model is achieved as follows:
[0006] A simple underwater lifting device for a pontoon assembly ship, characterized in that: it comprises an assembly pontoon and a load-bearing steel beam arranged on both sides, the two ends of the load-bearing steel beam are respectively welded to the assembly pontoons on both sides, and the lifting device is arranged in the middle of the load-bearing steel beam;
[0007] The lifting device comprises a finely rolled threaded steel bar, a finely rolled nut, a clamping plate, a lifting plate, a hydraulic jack, a base plate and a shoulder beam lifting hook;
[0008] The base plate is welded to the upper part of the load-bearing steel beam, the jacking plate is located above the base plate, the hydraulic jack is arranged between the jacking plate and the base plate, and the base plate and the jacking plate cover the hydraulic jack to ensure the stability of the lifting device; holes are opened on both sides of the base plate and the jacking plate, and the two ends of the fine-rolled threaded steel bar are respectively vertically passed through the jacking plate and the base plate and fixed by fine-rolled nuts, and the bottom end of the fine-rolled threaded steel bar is connected to the lifting hook of the shoulder pole beam.
[0009] The simple underwater lifting device for a pontoon assembled ship is characterized in that it also includes a precision-rolled threaded steel connector, which is sleeved on the precision-rolled threaded steel at the bottom of the base plate, and a precision-rolled nut is installed at the bottom of the precision-rolled threaded steel connector.
[0010] The simple underwater lifting device for the pontoon assembly ship is characterized in that the buoyancy of the assembled pontoon assembly ship is greater than 1.5-2 times the maximum tonnage required for lifting.
[0011] The described simple underwater lifting device for a pontoon assembly ship is characterized in that it also includes a power unit and an anchor winch, which are arranged on the pontoon. The power unit of the pontoon assembly ship adopts a diesel or gasoline power unit with a power of not less than 1 horsepower per 2 tons; the pontoon assembly ship moves through its own power unit, is positioned by a Beidou positioning device, and after being anchored by the four anchor winches of the pontoon assembly ship, the lifting position is accurately positioned according to the Beidou positioning and the underwater measurement guidance of the diver; the displacement adjustment during the lifting operation is completed by adjusting the anchor winches in different directions.
[0012] The simple underwater lifting device for a floating box assembly ship is characterized in that the hoisted object is hung on the lifting hook of the shoulder beam below the load-bearing steel beam through a safety wire rope and is located between the gaps of the floating boxes.
[0013] The simple underwater lifting device for a pontoon assembled ship is characterized in that it also includes a clamping plate, which is arranged between the lifting plate and the finishing nut, and between the base plate and the finishing nut; the finishing nut cooperates with the clamping plate to limit the position.
[0014] The simple underwater lifting device for a floating pontoon assembly ship is characterized in that the clamping plate is provided with elliptical holes and the spacing between the holes and the holes is smaller than the diameter of the precision-rolled threaded steel connector and the precision-rolled nut.
[0015] The simple underwater lifting device for a floating pontoon assembly ship is characterized in that the opening diameters of the jacking plate and the base plate need to be larger than the diameters of the precision-rolled threaded steel connector and the precision-rolled nut.
[0016] The beneficial effect of the utility model is: it can be seen from the above technical scheme that the present application provides a simple underwater lifting device for a pontoon assembly ship, and the pontoon assembly ship (platform) composed of assembled pontoons, anchor winches, power units, load-bearing steel beams and lifting devices can successfully complete ultra-large tonnage underwater lifting operations.
[0017] The present application uses a pontoon assembly ship (platform) composed of an assembly pontoon, an anchor winch, a power unit, a load-bearing steel beam and a lifting device to transport each part to a temporary dock and complete the assembly of the pontoon assembly ship (platform) with the assistance of an onshore lifting machine, thereby solving the problem that there are no large floating cranes in inland rivers, lakes and reservoirs and it is extremely difficult for large water operation vessels to enter;
[0018] The lifting device of the pontoon assembly ship (platform) is relatively simple in composition and has strong adaptability to the maximum tonnage of the lifting load, that is, the lifting force of the hydraulic jack is converted into lifting force, especially for underwater lifting of super-large tonnage;
[0019] The pontoon assembly ship (platform) and the hoisting method are simple, feasible and generally practical. The buoyancy of the pontoon and the lifting force of the hydraulic jack are fully utilized. During hoisting, the overall center of gravity of the hull (platform) is low and the lifting device is located at the center of gravity of the pontoon assembly ship (platform). The hoisting operation is safe and stable. In combination with the anchoring machine, the anchoring can be adapted to various water conditions and has general practicality.
[0020] The high-rolled rebar can be extended by high-rolled rebar connectors to solve deep-water lifting operations. The combined cross-section of multiple thicker high-rolled threads has a certain strength, rigidity and stability to ensure the stability of the hoisted objects under certain water depth and flow conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:
[0022] Figure 1 This is a schematic diagram of the structure of this application;
[0023] Figure 2 Schematic diagram of the lifting device.
[0024] Figure 3 for Figure 2 Schematic diagram of the top view.
[0025] Figure 4 Schematic diagram of the shoulder pole beam lifting hook. DETAILED DESCRIPTION
[0026] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection requested by the present application.
[0027] like Figure 1-4 As shown: a simple underwater lifting device for a pontoon assembly ship, which includes an assembly pontoon 1 and a load-bearing steel beam 2 arranged on both sides, the two ends of the load-bearing steel beam are respectively welded to the assembly pontoons on both sides to provide a lifting reaction force, and the lifting device is arranged in the middle of the load-bearing steel beam, that is, at the center of gravity of the pontoon assembly ship (platform);
[0028] The lifting device comprises a finely rolled threaded steel bar 3, a finely rolled nut 4, a clamping plate 5, a lifting plate 6, a hydraulic jack 7, a base plate 8 and a shoulder beam lifting hook 9;
[0029] The base plate is welded to the upper part of the load-bearing steel beam, the jacking plate is located above the base plate, the hydraulic jack is arranged between the jacking plate and the base plate, and the base plate and the jacking plate cover the hydraulic jack to ensure the stability of the lifting device; holes are opened on both sides of the base plate and the jacking plate, and the two ends of the fine-rolled threaded steel bar are respectively vertically passed through the jacking plate and the base plate and fixed by fine-rolled nuts, and the bottom end of the fine-rolled threaded steel bar is connected to the lifting hook of the shoulder pole beam.
[0030] Furthermore, it also includes a precision-rolled threaded steel connector 10, which is sleeved on the precision-rolled threaded steel at the lower part of the base plate, and a precision-rolled nut is installed at the lower part of the precision-rolled threaded steel connector.
[0031] By adopting the above technical solution, the fine-rolled threaded steel of the lifting device is extended by the fine-rolled threaded steel connector, and the shoulder pole beam lifting hook is connected to the fine-rolled threaded steel through the internal fine-rolled nut.
[0032] The buoyancy of the assembled pontoon assembly ship is 1.5-2 times greater than the maximum tonnage required to be lifted.
[0033] Furthermore, it also includes a power unit 11 and an anchor winch 12, which are arranged on the pontoon. The power unit of the pontoon assembly ship adopts a diesel or gasoline power unit with a power of not less than 1 horsepower per 2 tons; the pontoon assembly ship moves through its own power unit and is positioned by a Beidou positioning device. After the four anchor winches of the pontoon assembly ship are used to drop anchor, the lifting position is accurately located according to the Beidou positioning and the underwater measurement guidance of the divers; the displacement adjustment during the lifting operation is completed by adjusting the anchor winches in different directions.
[0034] The hoisted object is hung on the lifting hook of the shoulder beam under the load-bearing steel beam through a safety wire rope and is located between the gaps of the pontoon.
[0035] Furthermore, it also includes a clamping plate, which is arranged between the lifting plate and the finishing nut, and between the base plate and the finishing nut; the finishing nut cooperates with the clamping plate to limit the position.
[0036] The card plate is provided with elliptical holes and the spacing between the holes and the holes is smaller than the diameter of the precision-rolled threaded steel connector and the precision-rolled nut.
[0037] The opening diameter of the lifting plate and the base plate needs to be larger than the diameter of the finished threaded steel connector and the finished nut.
[0038] After precise positioning of this application, the lifting operation is completed by the lifting device under the guidance of divers who are professional in lifting operations according to the lifting task; the shift adjustment during the lifting operation is generally completed by adjusting the anchor winch in different directions; the barge transportation of the hoisted objects is completed by the power device of the pontoon assembly ship (platform) itself, and the hoisted objects are hung under the load-bearing steel beams through safety wire ropes and are located between the gaps of the pontoons; the assembly of the pontoon assembly ship (platform) needs to be completed at a temporary dock with the assistance of onshore lifting machinery, and the barge transportation of the hoisted objects also needs the assistance of onshore lifting machinery.
[0039] Lifting the hoisted object: When the hydraulic jack is lifted, the bottom plate finishing nut is adjusted downward synchronously, and when the hydraulic jack is retracted, the top plate finishing nut is adjusted downward synchronously, and the lifting of the hoisted object is completed by repeated cycles.
[0040] Lower the hoisted object: adjust the top plate precision-rolled nut upwards to the maximum lifting stroke of the hydraulic jack and then synchronously lift the jack. Then adjust the bottom plate precision-rolled nut upwards not exceeding the maximum lifting stroke, and then slowly retract the jack to complete a maximum stroke retraction. Repeat the cycle to lower the hoisted object.
[0041] Overall construction process: build a temporary wharf → use onshore lifting machinery to complete the assembly of the pontoon assembly ship (platform) → the pontoon assembly ship (platform) carries the lifting objects → transports the lifting objects to the designated lifting location → preliminary positioning → precise positioning → lifting operation → lifting is completed.
[0042] The above are only embodiments provided for the present application and are not intended to limit the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A simple underwater lifting device for a floating pontoon assembly ship, characterized in that: It includes assembled pontoons and load-bearing steel beams arranged on both sides, the two ends of the load-bearing steel beams are respectively welded to the assembled pontoons on both sides, and the lifting device is arranged in the middle of the load-bearing steel beam; The lifting device comprises a finely rolled threaded steel bar, a finely rolled nut, a clamping plate, a lifting plate, a hydraulic jack, a base plate and a shoulder beam lifting hook; The base plate is welded to the upper part of the load-bearing steel beam, the jacking plate is located above the base plate, the hydraulic jack is arranged between the jacking plate and the base plate, and the base plate and the jacking plate cover the hydraulic jack to ensure the stability of the lifting device; holes are opened on both sides of the base plate and the jacking plate, and the two ends of the fine-rolled threaded steel bar are respectively vertically passed through the jacking plate and the base plate and fixed by fine-rolled nuts, and the bottom end of the fine-rolled threaded steel bar is connected to the lifting hook of the shoulder pole beam.
2. The simple underwater lifting device for a floating pontoon assembly ship according to claim 1, characterized in that: It also includes a precision-rolled threaded steel connector, which is sleeved on the precision-rolled threaded steel at the lower part of the base plate, and a precision-rolled nut is installed at the lower part of the precision-rolled threaded steel connector.
3. The simple underwater lifting device for a floating pontoon assembly ship according to claim 1, characterized in that: The buoyancy of the assembled pontoon assembly ship is 1.5-2 times greater than the maximum tonnage required to be lifted.
4. The simple underwater lifting device for a floating pontoon assembly ship according to claim 1, characterized in that: It also includes a power unit and an anchor winch, which are installed on the pontoon. The power unit of the pontoon assembly ship adopts a diesel or gasoline power unit with a power of not less than 1 horsepower per 2 tons; the pontoon assembly ship moves through its own power unit and is positioned by the Beidou positioning device. After dropping anchor through the four anchor winches of the pontoon assembly ship, the lifting position is accurately located according to the Beidou positioning and the underwater measurement guidance of the divers; the displacement adjustment during the lifting operation is completed by adjusting the anchor winches in different directions.
5. The simple underwater lifting device for a floating pontoon assembly ship according to claim 1, characterized in that: The hoisted object is hung on the lifting hook of the shoulder beam under the load-bearing steel beam through a safety wire rope and is located between the gaps of the pontoon.
6. The simple underwater lifting device for a floating pontoon assembly ship according to claim 2, characterized in that: It also includes a clamping plate, which is arranged between the jacking plate and the finish-rolled nut, and between the base plate and the finish-rolled nut; the finish-rolled nut cooperates with the clamping plate to limit the position.
7. The simple underwater lifting device for a floating pontoon assembly ship according to claim 6, characterized in that: The card plate is provided with elliptical holes and the spacing between the holes and the holes is smaller than the diameter of the precision-rolled threaded steel connector and the precision-rolled nut.
8. The simple underwater lifting device for a floating pontoon assembly ship according to claim 2, characterized in that: The opening diameter of the lifting plate and the base plate needs to be larger than the diameter of the finished threaded steel connector and the finished nut.