CN118083820A - Folding arm type marine A frame - Google Patents
Folding arm type marine A frame Download PDFInfo
- Publication number
- CN118083820A CN118083820A CN202410460721.4A CN202410460721A CN118083820A CN 118083820 A CN118083820 A CN 118083820A CN 202410460721 A CN202410460721 A CN 202410460721A CN 118083820 A CN118083820 A CN 118083820A
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- China
- Prior art keywords
- arm
- folding
- amplitude
- folding arm
- pulley
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000005484 gravity Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 230000010355 oscillation Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 238000011835 investigation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/52—Floating cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/42—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with jibs of adjustable configuration, e.g. foldable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/68—Jibs foldable or otherwise adjustable in configuration
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to the technical field of ships, in particular to a folding arm type marine A frame which comprises a base, an amplitude changing arm and a folding arm, wherein the base is fixed on a ship deck, a first end of the amplitude changing arm is hinged with the base, the amplitude changing arm is driven and controlled by amplitude changing to rotate relative to the base, a second end of the amplitude changing arm is hinged with a first end of the folding arm, the folding arm 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, the 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, and the steel cable is kept to be tensioned and constant in tension. The folding arm type marine A frame has a folding function, reduces the overall size in a storage state, reduces the height of a lifting point, is convenient to maintain a lifting point pulley, a swinging stopping winch and the like, and has a more adaptive swinging stopping device, so that operation equipment is protected from being damaged.
Description
Technical Field
The invention 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 Invention
Based on the above problems, the invention 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 invention adopts the following technical scheme:
The folding arm type marine A frame comprises a base, an amplitude changing arm and a folding arm, wherein the base is fixed on a ship deck, a first end of the amplitude changing arm is hinged with the base and is driven and controlled by the amplitude changing to rotate relative to the base, a second end of the amplitude changing arm is hinged with a 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 a 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, and when the amplitude changing driving and the folding arm driving are both in minimum output strokes, the amplitude changing arm and the folding arm are in a folding angle shape and are both positioned on the inner side of the ship, and the folding arm type marine A frame is in a storage state; when the amplitude variation drive is in the minimum output stroke and the folding arm drive is in the maximum output stroke, the amplitude variation arm and the folding arm combination are in a straight arm shape and are all 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 and the folding arm driving are both in maximum output strokes, the amplitude variation arm and the folding arm combination are in straight arms, at least the second end of the folding arm is positioned on the outer side of the ship body, and the folding arm type marine A frame is in a folding and unfolding operation state.
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 oscillation stopping pulley is rotationally connected with the amplitude changing arm through a pin shaft, when the amplitude changing arm is in a storage state, the oscillation stopping pulley is abutted against the amplitude changing arm, and a buffer block contacted with the oscillation stopping pulley is arranged on the surface of the amplitude changing arm; in the hoisting state or the winding and unwinding operation state, the swinging stopping pulley freely rotates around the pin shaft along with the suspension height of the operation equipment.
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 invention, the following description will make a brief introduction to the drawings required for the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention 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 invention;
fig. 2 is a side view of a folding arm type marine a frame according to an embodiment of the present invention 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 invention;
Fig. 4 is a side view of the folding arm type marine a frame provided in the embodiment of the invention 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 invention 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 invention 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 invention 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 invention.
In the figure:
1. A base; 2. a luffing jib; 3. folding arms; 4. amplitude variation driving; 5. folding arm driving; 6. mounting a beam; 7. a hanging point pulley; 8. stopping the winch; 9. a sway stopping pulley; 10. a first hinge point; 11. a second hinge point; 12. a first mount; 13. a third hinge point; 14. a fourth hinge point; 15. a second mounting base; 16. a fifth hinge point; 17. a variable amplitude limiting block; 18. folding arm limiting blocks; 19. a limiting frame; 20. a pin shaft; 21. a working device; 22. and a buffer block.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
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, and in the storage state, the anti-swing pulley 9 is abutted against the luffing jib 2, and a buffer block 22 contacted with the anti-swing pulley 9 is arranged on the surface of the luffing jib 2; in the hanging state or the storage operation state, the swing preventing pulley 9 freely rotates around the pin shaft 20 along with the hanging height of the operation device 21. Referring to fig. 8 in detail, when the anti-swing pulley 9 is not under force, it contacts with the buffer block 22 under the action of self gravity; when the cable is forced, the anti-sway block 9 rotates about the pin 20 to accommodate the amplitude of the amplitude, thereby ensuring that the anti-sway block 9 has sufficient flexibility to better guide the cable.
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 invention.
The specific action process is as follows:
In detail, referring to fig. 1 and 2, in the storage state, the amplitude variation drive 4 is in the minimum output stroke, the amplitude variation arm 2 is retracted to the inboard side of the ship body, and the amplitude variation arm 2 is kept in a stable state; the folding arm drive 5 is positioned at the minimum output stroke, and the folding arm 3 is folded downwards; the steel cable on the anti-swing winch 8 sequentially passes through the limiting frames 19 on the folding arm 3 and the amplitude changing 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 5 is in the maximum output stroke, and pushes the folding arm 3 upwards, so that the folding arm 3 and the amplitude arm 2 are combined into a straight arm shape, and the folding arm 3 is abutted against the folding arm limiting block 18; after the working equipment 21 is suspended in place, the fixing of the steel cable of the anti-sway winch 8 is released, and the anti-sway winch 8 is operated to release the steel cable, so that the steel cable is connected with the working equipment 21; the swing prevention pulley 9 automatically rotates to a certain angle according to the suspension position of the working equipment 21.
Referring to fig. 5 to 7 in detail, in the retraction operation state, the amplitude variation drive 4 is in the maximum output stroke, so that the amplitude variation arm 2 rotates around the first hinge point 10 of the base 1 to the outboard side of the ship body until the amplitude variation arm 2 abuts against the amplitude variation limiting block 17; in the amplitude changing 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 a control valve group is arranged to realize constant tension; when the working equipment 21 is retracted and extended, the swing preventing pulley 9 rotates around the pin 20.
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 invention, and the present invention is not limited to the above embodiments, but can be variously changed and modified without departing from the spirit and scope of the present invention, which is within the scope of the present invention as claimed. The scope of the invention 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 |
|---|---|---|---|
| CN202410460721.4A CN118083820A (en) | 2024-04-17 | 2024-04-17 | Folding arm type marine A frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410460721.4A CN118083820A (en) | 2024-04-17 | 2024-04-17 | Folding arm type marine A frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118083820A true CN118083820A (en) | 2024-05-28 |
Family
ID=91147966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410460721.4A Pending CN118083820A (en) | 2024-04-17 | 2024-04-17 | Folding arm type marine A frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118083820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118880972A (en) * | 2024-08-15 | 2024-11-01 | 厦门鸿海科创智能装备有限公司 | Trench digger retractable system |
-
2024
- 2024-04-17 CN CN202410460721.4A patent/CN118083820A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118880972A (en) * | 2024-08-15 | 2024-11-01 | 厦门鸿海科创智能装备有限公司 | Trench digger retractable system |
| CN118880972B (en) * | 2024-08-15 | 2025-01-28 | 厦门鸿海科创智能装备有限公司 | Trench digger retractable system |
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