CN222249827U - Folding arm marine A-frame - Google Patents
Folding arm marine A-frame Download PDFInfo
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- CN222249827U CN222249827U CN202420804675.0U CN202420804675U CN222249827U CN 222249827 U CN222249827 U CN 222249827U CN 202420804675 U CN202420804675 U CN 202420804675U CN 222249827 U CN222249827 U CN 222249827U
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Abstract
本实用新型涉及船舶技术领域，尤其涉及一种折臂式船用A架，包括底座、变幅臂和折臂，底座固定于船体甲板上，变幅臂的第一端与底座铰接，并由变幅驱动控制变幅臂相对于底座转动，变幅臂的第二端与折臂的第一端铰接，并由折臂驱动控制折臂相对于变幅臂转动，折臂的第二端设置有安装梁，安装梁上设置有吊点滑轮和止荡绞车，吊点滑轮上绕设有用于悬吊作业设备的吊绳，变幅臂上设置有止荡滑轮，止荡绞车上的钢缆绕过止荡滑轮后与作业设备连接，钢缆保持张紧且张力恒定。该折臂式船用A架具有折叠功能，减小了存放状态时的整体尺寸，降低了吊点高度，方便对吊点滑轮、止荡绞车等进行维护保养，且具有更适配的止荡装置，从而保护作业设备不受损坏。
The utility model relates to the technical field of ships, and in particular to a folding arm type ship A-frame, comprising a base, a luffing arm and a folding arm, wherein the base is fixed on the hull deck, the first end of the luffing arm is hinged to the base, and the luffing arm is controlled to rotate relative to the base by the luffing drive, the second end of the luffing arm is hinged to the first end of the folding arm, and the folding arm is controlled to rotate relative to the luffing arm by the folding arm drive, the second end of the folding arm is provided with a mounting beam, the mounting beam is provided with a suspension point pulley and an anti-sway winch, a suspension rope for suspending operating equipment is wound around the suspension point pulley, the luffing arm is provided with an anti-sway pulley, and the steel cable on the anti-sway winch is connected to the operating equipment after passing the anti-sway pulley, and the steel cable is kept taut and the tension is constant. The folding arm type ship A-frame has a folding function, reduces the overall size in the storage state, reduces the height of the suspension point, is convenient for maintenance of the suspension point pulley, the anti-sway winch, etc., and has a more suitable anti-sway device, thereby protecting the operating equipment from damage.
Description
Technical Field
The utility model relates to the technical field of ships, in particular to a folding arm type marine A frame.
Background
In deck equipment, the A frame is a special hoisting machine, has the characteristics of large hoisting capacity, wide application range and the like, and is widely applied to various marine investigation vessels, scientific investigation vessels and engineering action vessels.
In practical application, the ship stern A frame is large in overall size due to large load, occupies a considerable part of deck space, so that the use space of an actual deck is reduced, the lifting point is high in height when the existing A frame is in a storage state, maintenance is inconvenient, and the folding A frame has advantages relatively. In addition, when the ship is affected by sea waves in the marine environment, rolling and pitching can occur, so that the operation equipment can swing irregularly in the process of releasing the ship deck for launching and recovering the water, if the device is not used for stopping, the safety of the lifting equipment cannot be effectively protected, but the device for stopping applied to the A frame cannot be applied to the folding arm type A frame at present, and therefore, the improvement is needed.
Disclosure of utility model
Based on the above problems, the utility model aims to provide a folding arm type marine A frame, which reduces the volume of the A frame when in a storage state and ensures stable retraction of operation equipment in the use process.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
A folding arm type marine A frame comprises a base, an amplitude changing arm and a folding arm, wherein the base is fixed on a deck of a ship body, the first end of the amplitude changing arm is hinged with the base and is driven and controlled by the amplitude changing arm to rotate relative to the base, the second end of the amplitude changing arm is hinged with the first end of the folding arm and is driven and controlled by the folding arm to rotate relative to the amplitude changing arm, a mounting beam is arranged at the second end of the folding arm, a lifting point pulley and a swinging stopping winch are arranged on the mounting beam, a lifting rope for suspending operation equipment is wound on the lifting point pulley, a swinging stopping pulley is arranged on the amplitude changing arm, a steel cable on the swinging stopping winch is connected with the operation equipment after bypassing the swinging stopping pulley, the steel cable is kept tensioned and has constant tension, when the amplitude changing arm and the folding arm are driven to be in minimum output strokes, the amplitude changing arm is in a folding angle shape and is located on the inner side of the ship body, the folding arm type marine A frame is in a storage state when the amplitude changing drive is in minimum output strokes, the folding arm and the folding arm is combined with the folding arm is in maximum output strokes, the folding arm type A frame is in a straight state, and the folding arm type A frame is located on the inner side of the ship body, and the folding arm type A frame is in a folding arm type is in a folding arm driving state, and is in a folding arm type of the folding arm is at least is located on the side of the folding arm driving and is in the folding arm type.
Optionally, a first hinge point and a second hinge point are arranged on the base, the first hinge point is close to the outside of the ship body relative to the second hinge point, the amplitude variation arm is hinged with the base at the first hinge point, a first mounting seat is arranged on the amplitude variation arm, a third hinge point and a fourth hinge point are arranged on the first mounting seat, two ends of the amplitude variation drive are respectively arranged at the second hinge point and the third hinge point, a second mounting seat is arranged on the folding arm, a fifth hinge point is arranged on the second mounting seat, and two ends of the folding arm drive are respectively arranged at the fourth hinge point and the fifth hinge point.
Optionally, a luffing limit block is arranged on the base and used for being abutted against the luffing jib in a retraction operation state.
Optionally, a folding arm limiting block is arranged at the second end of the amplitude variation arm, and the folding arm limiting block is used for abutting against the folding arm in the hoisting state.
Optionally, the oscillation stopping pulley is located at the first end of the amplitude changing arm, and limiting frames for limiting and guiding the steel cable between the oscillation stopping winch and the oscillation stopping pulley are respectively arranged on the folding arm and the folding arm limiting block.
Optionally, the anti-swing pulley is rotationally connected with the amplitude changing arm through a pin shaft, the anti-swing pulley is abutted against the amplitude changing arm in a storage state, a buffer block contacted with the anti-swing pulley is arranged on the surface of the amplitude changing arm, and the anti-swing pulley freely rotates around the pin shaft along with the suspension height of the operation equipment in a hoisting state or a retraction operation state.
Optionally, the base, the amplitude changing arm and the folding arm are all provided with two and are arranged in parallel, and the mounting beam is simultaneously connected with the second ends of the two folding arms, so that the two amplitude changing arms, the two folding arms and the mounting beam form a door shape in a hoisting state and a folding and unfolding operation state.
Optionally, the anti-swing winch is provided with two corresponding two groups of bases, amplitude changing arms and folding arms, a plurality of hanging point pulleys are arranged at intervals along the length direction of the mounting beam, and each hanging point pulley is freely hung under the action of gravity.
To sum up, compare with prior art, this roll over marine A frame of arm formula has folding function, has reduced the overall dimension when depositing the state, has saved deck space, has reduced the hoisting point height, and convenient maintenance is carried out hoisting point pulley, is stopped and is swung winch etc. and has the more suitable device that stops, and the operation equipment is launched, the in-process of launching is more steady to protect the operation equipment not damaged when receiving and releasing the operation.
Drawings
For a clearer description and understanding of the technical solutions of the embodiments of the present utility model, the following description will make a brief introduction to the drawings required for the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and the drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural view of a folding arm type marine a frame in a storage state according to an embodiment of the present utility model;
Fig. 2 is a side view of a folding arm type marine a frame according to an embodiment of the present utility model in a storage state;
Fig. 3 is a schematic structural view of a folding arm type marine a frame in a hoisting state according to an embodiment of the present utility model;
Fig. 4 is a side view of the folding arm type marine a frame provided in the embodiment of the utility model in a hanging state;
Fig. 5 is a schematic structural view of a folding arm type marine frame a according to an embodiment of the present utility model in a retracted operation state;
fig. 6 is a side view of the folding arm type marine a frame according to the embodiment of the utility model in a retracted operation state;
Fig. 7 is a top view of the folding arm type marine a frame according to the embodiment of the utility model in a retracted operation state;
Fig. 8 is a schematic diagram of the motion of the swing stopping pulley of the folding arm type marine a frame according to the embodiment of the utility model.
In the figure:
1. A base; 2, an amplitude changing arm, 3, a folding arm, 4, an amplitude changing drive, 5, a folding arm drive, 6, an installation beam, 7, a lifting point pulley, 8, an anti-swing winch, 9, an anti-swing pulley, 10, a first hinge point, 11, a second hinge point, 12, a first installation seat, 13, a third hinge point, 14, a fourth hinge point, 15, a second installation seat, 16, a fifth hinge point, 17, an amplitude changing limiting block, 18, a folding arm limiting block, 19, a limiting frame, 20, a pin shaft, 21, operation equipment, 22 and a buffer block.
Detailed Description
In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
Referring to fig. 1 to 8, the present preferred embodiment provides a folding arm type marine a frame, which comprises a base 1, an amplitude arm 2 and a folding arm 3, wherein the base 1 is fixed on a deck of a ship body, a first end of the amplitude arm 2 is hinged with the base 1, the amplitude arm 2 is controlled by an amplitude drive 4 to rotate relative to the base 1, a second end of the amplitude arm 2 is hinged with a first end of the folding arm 3, the folding arm 3 is controlled by a folding arm drive 5 to rotate relative to the amplitude arm 2, a mounting beam 6 is arranged at a second end of the folding arm 3, a lifting point pulley 7 and a swinging stopping winch 8 are arranged on the mounting beam 6, a lifting rope for suspending an operation device 21 is wound on the lifting point pulley 7, a swinging stopping pulley 9 is arranged on the amplitude arm 2, a steel cable on the swinging stopping winch 8 is connected with the operation device 21 after bypassing the swinging stopping pulley 9, and the steel cable keeps tension constant. In particular, the constant tension of the wire rope of the oscillation preventing winch 8 is achieved by the control valve group, thereby ensuring a smooth lifting of the working equipment 21.
When the amplitude variation driving 4 and the folding arm driving 5 are both in the minimum output stroke, the amplitude variation arm 2 and the folding arm 3 are in a folded angle shape and are both positioned on the inner side of the ship body, and the folding arm type ship A frame is in a storage state;
When the amplitude variation drive 4 is in the minimum output stroke and the folding arm drive 5 is in the maximum output stroke, the amplitude variation arm 2 and the folding arm 3 are combined to be in a straight arm shape and are all positioned on the inner side of the ship body, and the folding arm type ship A frame is in a hoisting state;
When the amplitude variation driving 4 and the folding arm driving 5 are both in the maximum output stroke, the amplitude variation arm 2 and the folding arm 3 are combined to form a straight arm, at least the second end of the folding arm 3 is positioned on the outboard side of the ship body, and the folding arm type marine A frame is in a folding and unfolding operation state.
Therefore, the folding arm type marine A frame has a folding function, reduces the overall size in a storage state, saves deck space, reduces the height of a lifting point, is convenient to maintain the lifting point pulley 7, the anti-swing winch 8 and the like, has a more adaptive anti-swing device, and is more stable in the process of launching and water feeding of the operation equipment 21, so that the operation equipment 21 is protected from being damaged in the process of winding and unwinding.
As an alternative scheme, a first hinge point 10 and a second hinge point 11 are arranged on the base 1, the first hinge point 10 is close to the outside of the ship body relative to the second hinge point 11, the luffing jib 2 is hinged with the base 1 at the first hinge point 10, a first mounting seat 12 is arranged on the luffing jib 2, a third hinge point 13 and a fourth hinge point 14 are arranged on the first mounting seat 12, two ends of the luffing jib drive 4 are respectively arranged at the second hinge point 11 and the third hinge point 13, a second mounting seat 15 is arranged on the folding jib 3, a fifth hinge point 16 is arranged on the second mounting seat 15, and two ends of the folding jib drive 5 are respectively arranged at the fourth hinge point 14 and the fifth hinge point 16, so that the luffing jib 2 and the folding jib 3 are unfolded towards the outside of the ship body and folded towards the inside of the ship body.
As an alternative, the base 1 is provided with a luffing limit block 17, and the luffing limit block 17 is used for abutting against the luffing jib 2 in the retraction operation state, so as to provide enough supporting force for the luffing jib 2.
As an alternative, the second end of the luffing jib 2 is provided with a folding jib stopper 18, and the folding jib stopper 18 is used for abutting against the folding jib 3 in the hoisting state, so as to provide sufficient supporting force for the folding jib 3.
Further, the oscillation stopping pulley 9 is located at the first end of the amplitude changing arm 2, and limiting frames 19 for limiting and guiding the steel cable between the oscillation stopping winch 8 and the oscillation stopping pulley 9 are respectively arranged on the folding arm 3 and the folding arm limiting block 18, so that the steel cable is tensioned and stable, and further the oscillation stopping of the operation equipment 21 is achieved.
As an alternative, the anti-swing pulley 9 is rotatably connected with the luffing jib 2 through a pin shaft 20, the anti-swing pulley 9 is abutted against the luffing jib 2 in the storage state, a buffer block 22 contacted with the anti-swing pulley 9 is arranged on the surface of the luffing jib 2, and the anti-swing pulley 9 freely rotates around the pin shaft 20 along with the suspension height of the working equipment 21 in the hoisting state or the retraction working state. Referring to fig. 8 in detail, when the anti-sway block 9 is not under force, it contacts with the buffer block 22 under the action of self-gravity, when the steel cable is under force, the anti-sway block 9 rotates around the pin 20 to adapt to amplitude, so as to ensure that the anti-sway block 9 has enough flexibility to guide the steel cable better.
As an alternative scheme, the base 1, the amplitude changing arms 2 and the folding arms 3 are all provided with two and are arranged in parallel, and the mounting beams 6 are simultaneously connected with the second ends of the two folding arms 3, so that the two amplitude changing arms 2, the two folding arms 3 and the mounting beams 6 form a door shape in a hoisting state and a retraction operation state, and the overall structural strength is improved.
Further, two anti-swing winches 8 are provided corresponding to the two groups of the base 1, the amplitude changing arm 2 and the folding arm 3, a plurality of hanging point pulleys 7 are arranged at intervals along the length direction of the mounting beam 6, and each hanging point pulley 7 is freely hung under the action of gravity.
It should be noted that, the above-mentioned alternative embodiments may be combined in any combination, and all the combined embodiments are within the scope of the present utility model.
The specific action process is as follows:
in detail, as shown in fig. 1 and 2, in the storage state, the amplitude variation driving 4 is in the minimum output stroke, the amplitude variation arm 2 is retracted to the inboard side of the ship body, the amplitude variation arm 2 is kept in the stable state, the folding arm driving 5 is in the minimum output stroke, the folding arm 3 is folded downwards, and the steel cable on the anti-swing winch 8 sequentially passes through the folding arm 3 and the limiting frame 19 on the amplitude variation arm 2 to the anti-swing pulley 9, and is fixed after bypassing the anti-swing pulley 9.
In detail, as shown in fig. 3 and 4, in the hoisting state, the folding arm driving device 5 is in the maximum output stroke, the folding arm 3 is pushed upwards to enable the folding arm 3 and the amplitude changing arm 2 to be combined into a straight arm shape, the folding arm 3 is abutted against the folding arm limiting block 18, after the operation equipment 21 is suspended in place, the steel cable of the anti-swing winch 8 is released, the anti-swing winch 8 is operated to release the steel cable to connect the steel cable with the operation equipment 21, and the anti-swing pulley 9 automatically rotates to a certain angle according to the suspension position of the operation equipment 21.
In detail, as shown in fig. 5 to 7, in the retraction operation state, the amplitude variation drive 4 is in the maximum output stroke, so that the amplitude variation arm 2 rotates to the outboard side of the ship body around the first hinge point 10 of the base 1 until the amplitude variation arm 2 abuts against the amplitude variation limiting block 17, in the amplitude variation process, the oscillation stopping pulley 9 rotates around the pin shaft 20, the steel cable of the oscillation stopping winch 8 is in a tensioning state and is provided with a control valve group to realize constant tension, and in the retraction operation of the operation equipment 21, the oscillation stopping pulley 9 rotates around the pin shaft 20 in a follow-up manner.
The folding arm type marine A frame has the following advantages:
1) The marine A frame with the folding arm structure has smaller external dimension when in a storage state, so that the deck space is saved;
2) In the storage state, the lifting point of the folding arm type marine A frame is lower, so that the lifting point pulley 7, the anti-swing winch 8 and the like can be maintained conveniently;
3) The anti-swing system with better adaptation realizes better anti-swing of the operation equipment 21 during hoisting and winding and unwinding operations, and ensures the safety of ships, equipment and personnel.
The above embodiments merely illustrate the basic principles and features of the present utility model, and the present utility model is not limited to the above embodiments, but can be variously changed and modified without departing from the spirit and scope of the present utility model, which is within the scope of the present utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. The folding arm type marine A frame is characterized by comprising a base (1), an amplitude changing arm (2) and a folding arm (3), wherein the base (1) is fixed on a ship deck, a first end of the amplitude changing arm (2) is hinged with the base (1) and controlled by an amplitude changing drive (4) to rotate relative to the base (1), a second end of the amplitude changing arm (2) is hinged with the first end of the folding arm (3) and controlled by a folding arm drive (5) to rotate relative to the amplitude changing arm (2), a mounting beam (6) is arranged at the second end of the folding arm (3), a lifting point pulley (7) and a swinging stopping winch (8) are arranged on the mounting beam (6), a lifting rope for suspending an operation device (21) is wound on the lifting point pulley (7), a swinging stopping pulley (9) is arranged on the amplitude changing arm (2), a steel cable on the swinging stopping winch (8) is wound around the swinging stopping pulley (9) and is connected with the operation device (21) in a constant tension mode,
When the amplitude variation driving (4) and the folding arm driving (5) are both in the minimum output stroke, the amplitude variation arm (2) and the folding arm (3) are in a folded angle shape and are both positioned on the inner side of the ship body, and the folding arm type ship A frame is in a storage state;
When the amplitude variation drive (4) is in the minimum output stroke and the folding arm drive (5) is in the maximum output stroke, the amplitude variation arm (2) and the folding arm (3) are combined to form a straight arm and are both positioned on the inner side of the ship body, and the folding arm type marine A frame is in a hoisting state;
When the amplitude variation driving device (4) and the folding arm driving device (5) are both in maximum output travel, the amplitude variation arm (2) and the folding arm (3) are combined to form a straight arm shape, at least the second end of the folding arm (3) is positioned on the outboard side of the ship body, and the folding arm type marine A frame is in a folding and unfolding operation state.
2. The folding arm type marine A frame according to claim 1, wherein a first hinge point (10) and a second hinge point (11) are arranged on the base (1), the first hinge point (10) is close to the outboard side of the hull relative to the second hinge point (11), the amplitude arm (2) and the base (1) are hinged at the first hinge point (10), a first mounting seat (12) is arranged on the amplitude arm (2), a third hinge point (13) and a fourth hinge point (14) are arranged on the first mounting seat (12), two ends of the amplitude drive (4) are respectively arranged at the second hinge point (11) and the third hinge point (13), a second mounting seat (15) is arranged on the amplitude arm (3), a fifth hinge point (16) is arranged on the second mounting seat (15), and two ends of the amplitude arm drive (5) are respectively arranged at the fourth hinge point (14) and the fifth hinge point (16).
3. The folding arm type marine A frame according to claim 1, wherein an amplitude limiting block (17) is arranged on the base (1), and the amplitude limiting block (17) is used for abutting against the amplitude arm (2) in the folding and unfolding operation state.
4. The folding arm type marine a frame according to claim 1, wherein a folding arm stopper (18) is provided at a second end of the amplitude arm (2), and the folding arm stopper (18) is adapted to abut against the folding arm (3) in the lifted state.
5. The folding arm type marine A frame according to claim 4, wherein the swing stopping pulley (9) is located at the first end of the amplitude changing arm (2), and limiting frames (19) for limiting and guiding a steel cable between the swing stopping winch (8) and the swing stopping pulley (9) are respectively arranged on the folding arm (3) and the folding arm limiting block (18).
6. The folding arm type marine A frame according to claim 1, wherein the swinging stopping pulley (9) is rotatably connected with the amplitude changing arm (2) through a pin shaft (20),
When in the storage state, the anti-swing pulley (9) is abutted against the amplitude changing arm (2), and a buffer block (22) contacted with the anti-swing pulley (9) is arranged on the surface of the amplitude changing arm (2);
In the hanging state or the winding and unwinding operation state, the swinging stop pulley (9) freely rotates around the pin shaft (20) along with the hanging height of the operation equipment (21).
7. The folding arm type marine A frame according to claim 1, wherein the base (1), the amplitude changing arm (2) and the folding arms (3) are arranged in parallel, and the mounting beams (6) are simultaneously connected with the second ends of the two folding arms (3), so that the two amplitude changing arms (2), the two folding arms (3) and the mounting beams (6) form a door shape in the hoisting state and the retraction operation state.
8. The folding arm type marine A frame according to claim 7, wherein two groups of the base (1), the amplitude changing arm (2) and the folding arm (3) are arranged corresponding to the anti-swing winch (8), a plurality of hanging point pulleys (7) are arranged at intervals along the length direction of the mounting beam (6), and each hanging point pulley (7) is freely hung under the action of gravity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420804675.0U CN222249827U (en) | 2024-04-17 | 2024-04-17 | Folding arm marine A-frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420804675.0U CN222249827U (en) | 2024-04-17 | 2024-04-17 | Folding arm marine A-frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222249827U true CN222249827U (en) | 2024-12-27 |
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ID=93981989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420804675.0U Active CN222249827U (en) | 2024-04-17 | 2024-04-17 | Folding arm marine A-frame |
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| Country | Link |
|---|---|
| CN (1) | CN222249827U (en) |
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2024
- 2024-04-17 CN CN202420804675.0U patent/CN222249827U/en active Active
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