On-board folding arm crane for hydrological resource exploration

Abstract

The invention discloses an on-board folding arm crane for hydrological resource exploration, and relates to the technical field of hydraulic cranes, the on-board folding arm crane comprises a hoisting assembly, the hoisting assembly comprises a steel wire rope, and the hoisting assembly is provided with two guide wheel assemblies for guiding the steel wire rope; the guide wheel assembly comprises a shell, the outer wall of the shell is rotationally connected with a guide wheel, the inner wall of the guide wheel is slidably connected with a plurality of pressing plates, each pressing plate is provided with a plurality of tooth grooves, the outer wall of the shell is fixedly connected with a toothed plate through a supporting frame, the toothed plate and the tooth grooves are meshed with each other, a limiting assembly is arranged on one side of the guide wheel, and a driving assembly is arranged in the shell. The driving assembly comprises a magnetic rod slidably connected to the interior of the shell, a fixing rod is fixedly connected to the magnetic rod, and a first protruding block is fixedly connected to the fixing rod, the device can clamp a broken steel wire rope and prevent the broken steel wire rope from falling, and the problem that the broken steel wire rope freely falls to crush operators or damage equipment can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, and in particular to a folding arm crane on board a ship for hydrological resource exploration. Background Art

[0002] Hydrological resource exploration often needs to be carried out in rivers, lakes, reservoirs and other waters. The terrain in these areas is complex and changeable. The folding arm crane can achieve precise operations in some narrow or space-restricted waters by adjusting the angle and length of the boom.

[0003] When an object needs to be lifted on an existing folding arm crane used in hydrological resource exploration, the operator starts the motor through the control system. The motor drives the drum to rotate and begins to reel in the wire rope. As the wire rope gradually reels in, the hook rises and lifts the object off the ground or water.

[0004] When the existing folding arm crane on a ship used for hydrological resource exploration is used at sea, the hull will be bumpy during operation, and the bumps will cause the wire rope to shake inside the guide wheel, increasing the wear of the wire rope and the internal wear of the guide wheel. In addition, the high humidity, salt and corrosive gases at sea will wear and corrode the wire rope, causing it to break. The broken wire rope will cause the hook below it to fall freely, resulting in injuries to operators or damage to equipment. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the wire rope breaks and causes the hook below it to fall freely, thereby injuring workers or damaging equipment, and to propose a ship-mounted folding arm crane for hydrological resource exploration.

[0006] To achieve the above-mentioned object, the present invention adopts the following technology: a folding arm crane for hydrological resource exploration on board a ship: comprising a lifting assembly, the lifting assembly including a steel wire rope, the lifting assembly being provided with two guide wheel assemblies for guiding the steel wire rope;

[0007] The guide wheel assembly includes a shell, the outer wall of the shell is rotatably connected to the guide wheel, the inner wall of the guide wheel is slidably connected to a plurality of pressure plates, the pressure plates are provided with a plurality of tooth grooves, the outer wall of the shell is fixedly connected to the tooth plate through a support frame, the tooth plate and the tooth grooves are engaged with each other, a limit assembly is provided on one side of the guide wheel, and a drive assembly is provided inside the shell;

[0008] The steel wire rope breaks and drives the guide wheel to rotate faster, increasing the centrifugal force inside the guide wheel. The centrifugal force causes the limiting component to move and limit the guide wheel, so that the guide wheel stops rotating following the steel wire rope. At the same time, when the pressing plate rotates, it slides towards the outer wall of the guide wheel through the driving component and squeezes and fixes the steel wire rope. And the pressing plate at another place slides towards the outer wall, and the tooth grooves on the pressing plate mesh with the toothed plate, then the guide wheel can be limited, and the guide wheel can be prevented from rotating in reverse.

[0009] As a further description of the folding boom crane on a ship for hydrological resource exploration of the above technology:

[0010] The driving component includes a magnetic rod slidably connected inside the housing. A fixed rod is fixedly connected to the magnetic rod, and a first convex block is fixedly connected to the fixed rod.

[0011] As a further description of the folding boom crane on a ship for hydrological resource exploration of the above technology:

[0012] The driving component further includes a second convex block fixedly connected to the fixed rod. The second convex block is located on one side of the first convex block. A first spring is fixedly connected between one end of the magnetic rod and the housing.

[0013] As a further description of the folding boom crane on a ship for hydrological resource exploration of the above technology:

[0014] A connecting rod is fixedly connected inside the pressing plate. A ball is rotatably connected to one end of the connecting rod. The ball is in contact with the surface of the fixed rod. A sleeve is fixedly connected inside the guide wheel. A second spring is fixedly connected between the inner walls of the connecting rod and the sleeve.

[0015] As a further description of the folding boom crane on a ship for hydrological resource exploration of the above technology:

[0016] Convex plates are fixedly connected to both ends of the magnetic rod. The convex plate includes a first support section. A second support section is arranged on one side of the first support section. The thickness of the first support section is greater than that of the second support section.

[0017] As a further description of the folding boom crane on a ship for hydrological resource exploration of the above technology:

[0018] The limiting component includes a rotating plate rotatably connected to one side of the guide wheel. There are two rotating plates. One ends of the two rotating plates are rotatably connected through a connecting rod, and the other ends of the two rotating plates are rotatably connected through a spring telescopic rod.

[0019] As a further description of the folding boom crane on a ship for hydrological resource exploration of the above technology:

[0020] One end of the rotating plate is fixedly connected with a limiting block, and a limiting plate is fixedly connected inside the outer shell. A limiting groove is arranged inside the limiting plate, and the sizes of the limiting block and the limiting groove are matched.

[0021] As a further description of the above-mentioned technology, a folding boom crane on a ship for hydrological resource exploration:

[0022] One end of the rotating plate is fixedly connected with a pressing rod. One end of the pressing rod is in contact with the convex plate, and one end of the pressing rod is set to be arc-shaped.

[0023] As a further description of the above-mentioned technology, a folding boom crane on a ship for hydrological resource exploration:

[0024] An electromagnet is fixedly connected inside the outer shell, and the electromagnet after being energized and the magnetic rod are magnetically adsorbed to each other.

[0025] As a further description of the above-mentioned technology, a folding boom crane on a ship for hydrological resource exploration:

[0026] The lifting assembly further includes a tower body. One end of the tower body is rotatably connected with an inner arm through a first hydraulic cylinder. One end of the inner arm is rotatably connected with an outer arm 15 through a second hydraulic cylinder. The inner part of the outer arm and both ends of the outer shell 21 are fixedly connected. The tower body is fixedly connected with one end of a wire rope through a winding frame, and a hook is fixedly connected to one end of the wire rope.

[0027] In summary, due to the adoption of the above-mentioned technology of a folding boom crane on a ship for hydrological resource exploration, the beneficial effects of the present invention are:

[0028] 1. By arranging a guide wheel assembly, the wire rope passes through between two guide wheels. The two guide wheels limit and guide the wire rope. At the same time, the pressing plate rotates along with the guide wheel. When the pressing plate rotates to the first convex block, the first convex block presses the pressing plate, and the pressing plate contacts the wire rope, so that the wire rope is stably located between the guide wheels, avoiding the hull from jolting and causing the wire rope to shake inside the guide wheels, effectively preventing the problem that the wire rope derails due to hull jolting or external force, and also reducing the wear between the wire rope and the guide wheels, thereby prolonging the service life of the wire rope and the guide wheel assembly.

[0029] 2. By setting a limit assembly, when the wire rope breaks, the wire rope slides quickly between the guide wheels, which increases the centrifugal force inside the guide wheel. The centrifugal force drives the turn plate to rotate, and the rotation drives the limit block to move to the limit groove on the limit plate. At this time, the guide wheel can be limited to stop the guide wheel from rotating. At the same time, the guide wheel drives the pressure plate to rotate quickly, and the pressure plate contacts the first protrusion. The first protrusion contacts the pressure plate, and the pressure plate squeezes the wire rope so that the wire rope is fixed and clamped between the two pressure plates. This device can clamp the broken wire rope and prevent it from falling, so as to avoid the broken wire rope from falling freely and injuring the operators or damaging the equipment.

[0030] 3. By providing an electromagnet, when the limit assembly works, the driving magnetic rod drives the second protrusion to slide synchronously, and the second protrusion squeezes the pressure plate of the other group, so that the pressure plate slides and engages with the tooth plate. At this time, the pressure plate can limit the guide wheel. When the broken wire rope needs to be disengaged from the guide wheel, the electromagnet is turned on, and the electromagnet adsorbs the magnetic rod, so that the second protrusion is disengaged from the pressure on the pressure plate, so that the pressure plate is reset and the engagement with the tooth plate is released. The guide wheel is then driven to reverse, and the wire rope can be removed. This device can prevent the guide wheel from reversing through the engagement of the pressure plate and the tooth plate, thereby avoiding the guide wheel from reversing due to external hull turbulence, which causes the limiting assembly to reset, resulting in the wire rope being detached from between the guide wheels, thereby causing a safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Shows a schematic diagram of the overall structure according to the present invention;

[0032] Figure 2 A schematic structural diagram of a guide wheel assembly and a steel wire rope according to the present invention is shown;

[0033] Figure 3 A cross-sectional view of the structure of the guide wheel according to the present invention is shown;

[0034] Figure 4 It shows a schematic structural diagram of an extruded plate and a sleeve according to the present invention;

[0035] Figure 5 A cross-sectional view of the structure of the guide wheel assembly according to the present invention is shown;

[0036] Figure 6 It shows a schematic structural diagram of the initial state of the limit assembly according to the present invention;

[0037] Figure 7 A schematic structural diagram showing a limiting state of a limiting assembly according to the present invention is shown;

[0038] Figure 8 Shows a structural exploded view of the position limiting assembly according to the present invention;

[0039] Figure 9 Shows an exploded view of another perspective structure of the limit component according to the present invention;

[0040] Figure 10 Shows a schematic structural diagram of the extrusion rod and the convex plate according to the present invention.

[0041] Legend description:

[0042] 10. Lifting component; 11. Tower body; 12. First hydraulic cylinder; 13. Inner arm; 14. Second hydraulic cylinder; 15. Outer arm; 16. Steel wire rope; 17. Hook; 20. Guide wheel assembly; 21. Housing; 22. Guide wheel; 221. Sleeve; 222. First spring; 23. Pressure plate; 231. Connecting rod; 232. Ball; 233. Tooth groove; 24. Magnetic rod; 241. Fixed rod; 242. First convex block; 243. Second convex block; 244. Second spring; 25. Limit plate; 251. Limit groove; 26. Support frame; 261. Tooth plate; 27. Convex plate; 271. First support section; 272. Second support section; 28. Electromagnet; 30. Limit component; 31. Rotating plate; 311. Limit block; 312. Extrusion rod; 32. Connecting rod; 33. Spring telescopic rod. Detailed implementation manners

[0043] Next, the technical solution of a folding boom crane on a ship for hydrological resource exploration in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0044] As Figures 1 to 10 shown, the present invention provides: a folding boom crane on a ship for hydrological resource exploration, including a lifting component 10, the lifting component 10 includes a steel wire rope 16, the lifting component 10 further includes a tower body 11, one end of the tower body 11 is rotatably connected to an inner arm 13 through a first hydraulic cylinder 12, one end of the inner arm 13 is rotatably connected to an outer arm 15 through a second hydraulic cylinder 14, the inside of the outer arm 15 is fixedly connected to both ends of the housing 21, the tower body 11 is fixedly connected to one end of the steel wire rope 16 through a winding frame, one end of the steel wire rope 16 is fixedly connected to a hook 17, and two guide wheel assemblies 20 for guiding the steel wire rope 16 are arranged on the lifting component 10;

[0045] As Figure 2 and Figure 3As shown, the guide wheel assembly 20 includes a housing 21. A guide wheel 22 is rotatably connected to the outer wall of the housing 21. A plurality of pressing plates 23 are slidably connected to the inner wall of the guide wheel 22. A connecting rod 231 is fixedly connected to the inside of the pressing plate 23. One end of the connecting rod 231 is rotatably connected to a ball 232. The surface of the ball 232 is in contact with the surface of a fixed rod 241. A sleeve 221 is fixedly connected to the inside of the guide wheel 22. A second spring 244 is fixedly connected between the inner wall of the sleeve 221 of the connecting rod 231.

[0046] Specifically, when the ball 232 moves to the first convex block 242 or the second convex block 243, the ball 232 drives the connecting rod 231 to move. The connecting rod 231 drives the pressing plate 23 to move towards the outer wall of the guide wheel 22, and the connecting rod 231 compresses the second spring 244. When the ball 232 disengages from the first convex block 242 and the second convex block 243, the second spring 244 drives the connecting rod 231 to reset, so that the surface of the ball 232 is in contact with the surface of the fixed rod 241.

[0047] As Figure 6 and Figure 7 As shown, a limiting component 30 is provided on one side of the guide wheel 22. The limiting component 30 includes a rotating plate 31 rotatably connected to one side of the guide wheel 22. There are two rotating plates 31. One ends of the two rotating plates 31 are rotatably connected by a connecting rod 32. The other ends of the two rotating plates 31 are rotatably connected by a spring telescopic rod 33. A limiting block 311 is fixedly connected to one end of the rotating plate 31. A limiting plate 25 is fixedly connected to the inside of the housing 21. A limiting groove 251 is provided inside the limiting plate 25. The sizes of the limiting block 311 and the limiting groove 251 match. The limiting block 311 and the limiting groove 251 can perform a limiting operation on the guide wheel 22, and at the same time, it can prevent the limiting block 311 on the rotating plate 31 pulled by the spring telescopic rod 33 from disengaging from the limiting groove 251.

[0048] As Figure 3 As shown, a driving component is provided inside the housing 21. The driving component includes a magnetic rod 24 slidably connected inside the housing 21. A fixed rod 241 is fixedly connected to the magnetic rod 24. A first convex block 242 is fixedly connected to the fixed rod 241.

[0049] The steel wire rope 16 breaks and drives the guide wheel 22 to rotate faster, and the centrifugal force inside the guide wheel 22 increases. The centrifugal force causes the limit assembly 30 to move and limits the guide wheel 22, so that the guide wheel 22 stops rotating with the steel wire rope 16. At the same time, when the pressure plate 23 rotates, it slides toward the outer wall of the guide wheel 22 through the drive assembly and squeezes and fixes the steel wire rope 16. The pressure plate 23 at another location slides toward the outer wall, and the tooth groove 233 on the pressure plate 23 engages with the tooth plate 261, so that the guide wheel 22 is limited, and the guide wheel 22 is prevented from reversing.

[0050] Specifically, when an existing folding arm crane for hydrological resource exploration is used at sea, the ship's hull will be bumpy during operation, which will cause the wire rope 16 to shake inside the guide wheel 22, increasing the wear of the wire rope 16 and the guide wheel 22. In addition, the high humidity, salt and corrosive gases at sea will wear and corrode the wire rope 16, causing the wire rope 16 to break. When the wire rope 16 breaks, the hook 17 below it will fall freely, causing injuries to operators or damage to equipment.

[0051] In order to avoid the above problems, the use of this device is as follows: when lifting is required, the second hydraulic cylinder 14 is driven to drive the outer arm 15 to unfold, and the object is connected to the hook 17. After the connection is completed, the first hydraulic cylinder 12 is used to drive the inner wall to rotate, and then the winding rack at the tower body 11 is driven to wind the wire rope 16, so that the wire rope 16 drives the hook 17 to rise, and the hook 17 carries the object for lifting processing;

[0052] When the steel wire rope 16 is retracted and extended, the steel wire rope 16 is between the two guide wheels 22. The two guide wheels 22 limit the steel wire rope 16, enabling the guide wheels 22 to slide stably between the two guide wheels 22. When the steel wire rope 16 breaks, the steel wire rope 16 slides out from between the guide wheels 22 and undergoes free fall. The falling speed of the steel wire rope 16 increases, and the rotation speed of the guide wheels 22 driven by the steel wire rope 16 increases, causing the centrifugal force inside the guide wheels 22 to increase. The centrifugal force drives the rotating plate 31 to swing. The rotating plate 31 stretches the spring telescopic rod 33 and drives another set of rotating plates 31 to rotate synchronously through the connecting rod 32. The two sets of rotating plates 31 drive the limiting block 311 to rotate into the limiting groove 251 inside the limiting plate 25. At this time, the limiting block 311 and the limiting block 311 cooperate to limit the guide wheel 22, preventing the guide wheel 22 from following the rotation while sliding with the steel wire rope 16. When the guide wheel 22 rotates, it drives the pressing plate 23 to rotate synchronously. The pressing plate 23 drives the ball 232 at one end of the connecting rod 231 to slide on the fixed rod 241. When the ball 232 slides from the fixed rod 241 to the first convex block 242, the first convex block 242 squeezes the ball 232. The ball 232 drives the pressing plate 23 at one end of the connecting rod 231 to move towards the steel wire rope 16. The two sets of pressing plates 23 perform a squeezing and fixing operation on the steel wire rope 16 through the tooth grooves 233. The tooth grooves 233 can increase the friction force between the steel wire ropes 16, thereby locking the broken steel wire rope 16.

[0053] By driving the sliding of the pressing plate 23, the broken steel wire rope 16 can be clamped and prevented from falling, avoiding the problem that the broken steel wire rope 16 falls freely and injures the operators or damages the equipment. By simultaneously sliding the pressing plate 23, it can maintain contact with the surface of the steel wire rope 16, avoiding surface wear of the steel wire rope 16, resulting in insufficient contact between the pressing plate 23 and the surface of the steel wire rope 16, thus causing the problem of difficult extrusion and locking.

[0054] As Figure 3 and Figure 4 As shown, a number of tooth grooves 233 are provided on the pressing plate 23. The outer wall of the housing 21 is fixedly connected with a toothed plate 261 through a support frame 26. The toothed plate 261 and the tooth grooves 233 are mutually engaged.

[0055] As Figures 8 to 9 As shown, the driving assembly further includes a second convex block 243 fixedly connected to the fixed rod 241. The second convex block 243 is located on one side of the first convex block 242. One end of the magnetic rod 24 and the housing 2 are fixedly connected with a first spring 222. The length of the second convex block 243 is less than the length of the first convex block 242.

[0056] As Figures 9 to 10As shown, both ends of the magnetic rod 24 are fixedly connected with a convex plate 27, and the convex plate 27 includes a first support segment 271, and a second support segment 272 is provided on one side of the first support segment 271. The thickness of the first support segment 271 is greater than the thickness of the second support segment 272. One end of the rotating plate 31 is fixedly connected with an extrusion rod 312, and one end of the extrusion rod 312 is in contact with the convex plate 27, and one end of the extrusion rod 312 is set to an arc shape.

[0057] Specifically, the guide wheel 22 can be locked by cooperating with the limit block 311 and the limit groove 251, so that the wire rope 16 is locked. When the ship is sailing on the sea, the ship pitches, causing the guide wheel 22 to reverse. The reverse rotation of the guide wheel 22 drives the rotating plate 31 to rotate synchronously. The rotating plate 31 drives the limit block 311 to disengage from the limit groove 251, causing the broken wire rope 16 to continue to slide inside the guide wheel 22, thereby posing a safety hazard to the staff or causing it to fall and damage the equipment below the wire rope 16.

[0058] In order to avoid the above problems, the present device is used as follows: when the limit block 311 is not engaged with the limit groove 251, the extrusion rod 312 is in the first support section 271 on the convex plate 27; when the limit block 311 is engaged with the limit groove 251, the rotating plate 31 drives the extrusion rod 312 to rotate, and the extrusion rod 312 slides from the first support section 271 on the convex plate 27 to the second support section 272; at this time, the convex plate 27 drives the magnetic rod 24 to move in the direction of the first spring 222, and at the same time, the first spring 222 pulls the magnetic rod 24. Synchronous sliding, the magnetic rod 24 drives the first protrusion 242 and the second protrusion 243 on the fixed rod 241 to slide synchronously, the first protrusion 242 keeps in contact with the bottom of the ball 232, and the second protrusion 243 moves and contacts the other set of balls 232, so that the balls 232 drive the pressure plate 23 at one end of the connecting rod 231 to slide synchronously, and the pressure plate 23 drives the tooth groove 233 to engage with the tooth plate 261, and then the guide wheel 22 can be limited by the tooth groove 233 and the tooth plate 261, thereby preventing the guide wheel 22 from reversing;

[0059] This device can prevent the guide wheel 22 from reversing by engaging the pressure plate 23 and the tooth plate 261, thereby avoiding the guide wheel 22 from reversing due to external hull turbulence, causing the limit assembly 30 to reset, resulting in the wire rope 16 being detached from between the guide wheels 22, thereby causing a safety hazard.

[0060] like Figure 5 As shown, an electromagnet 28 is fixedly connected to the interior of the housing 21 , and when energized, the electromagnet 28 and the magnetic rod 24 are magnetically attracted to each other.

[0061] Specifically, when it is necessary to disassemble the locked broken wire rope 16, the second hydraulic cylinder 14 is driven to drive the outer arm 15 to rotate and reset, so that the guide wheel 22 is close to the hull deck. Then, the electromagnet 28 can be turned on at this time. The electromagnet 28 adsorbs the magnetic rod 24, so that the magnetic rod 24 drives the fixed rod 241 to reset. The fixed rod 241 drives the second convex block 243 to reset, so that the roller disengages from the second convex block 243. Then, the second spring 244 drives the pressing plate 23 to disengage from the toothed plate 261. At this time, the limit on the guide wheel 22 can be released. Then, the guide wheel 22 is driven to rotate in reverse. The guide wheel 22 drives the rotating plate 31 to rotate. The rotating plate 31 drives the limiting block 311 to rotate and disengage from the limiting groove 251. Then, the spring telescopic rod 33 drives the rotating plate 31 to reset. At this time, the user can slowly take out the wire rope 16 from the guide wheel 22.

[0062] Working principle: When hoisting is required, the second hydraulic cylinder 14 is driven to drive the outer arm 15 to unfold, and the object and the hook 17 are connected. After the connection is completed, the inner wall is driven to rotate by the first hydraulic cylinder 12. Then, the winding frame at the tower body 11 is driven to wind the wire rope 16, so that the wire rope 16 drives the hook 17 to rise, and the hook 17 drives the object to be hoisted.

[0063] When the wire rope 16 is retracted and released, the wire rope 16 is between the two guide wheels 22. The two guide wheels 22 limit the wire rope 16, so that the guide wheel 22 can slide stably between the two guide wheels 22. When the wire rope 16 breaks, the wire rope 16 slides between the guide wheels 22 and undergoes free fall motion. The falling speed of the wire rope 16 increases, and the rotation speed of the guide wheel 22 driven by the wire rope 16 increases, so that the centrifugal force inside the guide wheel 22 increases. The centrifugal force drives the rotating plate 31 to rotate. The rotating plate 31 stretches the spring telescopic rod 33 and drives another group of rotating plates 31 to rotate synchronously through the connecting rod 32. The two groups of rotating plates 31 drive the limiting blocks 311 to rotate into the limiting grooves 251 inside the limiting plate 25. At this time, the limiting blocks 311 cooperate with each other to limit the guide wheel 22, so that the guide wheel 22 cannot follow the wire rope 16 to slide and rotate. While the guide wheel 22 rotates, it drives the pressing plate 23 to rotate synchronously. The pressing plate 23 drives the ball 232 at one end of the connecting rod 231 to slide on the fixed rod 241. When the ball 232 slides from the fixed rod 241 to the first convex block 242, the first convex block 242 squeezes the ball 232. The ball 232 drives the pressing plate 23 at one end of the connecting rod 231 to move towards the wire rope 16. The two groups of pressing plates 23 perform a pressing and fixing operation on the wire rope 16 through the tooth grooves 233. The friction force between the wire ropes 16 can be increased through the tooth grooves 233, and the broken wire rope 16 can be locked.

[0064] When the limit block 311 is not engaged with the limit groove 251, the extrusion rod 312 is on the first support section 271 of the convex plate 27. After the limit block 311 is engaged with the limit groove 251, the rotating plate 31 drives the extrusion rod 312 to rotate, and the extrusion rod 312 slides from the first support section 271 of the convex plate 27 to the second support section 272. At this time, the convex plate 27 drives the magnetic rod 24 to move in the direction of the first spring 222, and at the same time, the first spring 222 pulls the magnetic rod 24 to slide synchronously. The magnetic rod 24 drives the first convex block 242 and the second convex block 243 on the fixed rod 241 to slide synchronously. The first convex block 242 remains in contact with the lower part of the ball 232, and the second convex block 243 moves and contacts another group of balls 232, so that the balls 232 drive the pressing plate 23 at one end of the connecting rod 231 to slide synchronously. The pressing plate 23 drives the tooth groove 233 to engage with the tooth plate 261. Subsequently, the guide wheel 22 can be limited by the tooth groove 233 and the tooth plate 261, which can prevent the guide wheel 22 from rotating in reverse and ensure the stability of the guide wheel 22 locking the broken steel wire rope 16;

[0065] When it is necessary to disassemble the locked broken steel wire rope 16, the second hydraulic cylinder 14 drives the outer arm 15 to rotate and reset, so that the guide wheel 22 is close to the hull deck. Then, the electromagnet 28 can be turned on. The electromagnet 28 adsorbs the magnetic rod 24, so that the magnetic rod 24 drives the fixed rod 241 to reset. The fixed rod 241 drives the second convex block 243 to reset, so that the roller disengages from the second convex block 243. Then, the second spring 244 drives the pressing plate 23 to disengage from the tooth plate 261. At this time, the limit on the guide wheel 22 can be released. Then, the guide wheel 22 is driven to rotate in reverse. The guide wheel 22 drives the rotating plate 31 to rotate. The rotating plate 31 drives the limit block 311 to rotate and disengage from the limit groove 251. Then, the spring telescopic rod 33 drives the rotating plate 31 to reset. At this time, the user can slowly take out the steel wire rope 16 from the guide wheel 22.

[0066] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical idea of the present invention, makes equivalent replacement or change, and should be covered by the protection scope of the present invention.

Claims

1. An on - ship folding boom crane for hydrological resource exploration, including a lifting component (10), the lifting component (10) includes a steel wire rope (16), characterized in that, Two guide wheel assemblies (20) for guiding the steel wire rope (16) are provided on the lifting assembly (10). The guide wheel assembly (20) includes a housing (21). A guide wheel (22) is rotatably connected to the outer wall of the housing (21). A plurality of pressing plates (23) are slidably connected to the inner wall of the guide wheel (22). A plurality of tooth grooves (233) are provided on the pressing plates (23). A toothed plate (261) is fixedly connected to the outer wall of the housing (21) through a support frame (26). The toothed plate (261) and the tooth grooves (233) are meshed with each other. A limiting assembly (30) is provided on one side of the guide wheel (22). A driving assembly is provided inside the housing (21). When the steel wire rope (16) breaks and drives the guide wheel (22) to rotate faster, the centrifugal force inside the guide wheel (22) increases. The centrifugal force causes the limiting assembly (30) to move and limit the guide wheel (22), so that the guide wheel (22) stops rotating following the steel wire rope (16). At the same time, when the pressing plate (23) rotates, it slides towards the outer wall of the guide wheel (22) through the driving assembly and squeezes and fixes the steel wire rope (16). And the pressing plate (23) at another place slides towards the outer wall. The tooth grooves (233) on the pressing plate (23) and the toothed plate (261) are meshed, so as to limit the guide wheel (22) and prevent the guide wheel (22) from rotating in reverse.

2. The ship-mounted folding boom crane for hydrological resource exploration according to claim 1, characterized in that, The driving assembly includes a magnetic rod (24) slidably connected inside the housing (21). A fixing rod (241) is fixedly connected to the magnetic rod (24). A first convex block (242) is fixedly connected to the fixing rod (241).

3. The ship-mounted folding boom crane for hydrological resource exploration according to claim 2, wherein, The driving assembly further includes a second convex block (243) fixedly connected to the fixing rod (241). The second convex block (243) is located on one side of the first convex block (242). A first spring (222) is fixedly connected between one end of the magnetic rod (24) and the housing (21).

4. The on-board folding boom crane for hydrological resource exploration according to claim 3, wherein, A connecting rod (231) is fixedly connected inside the pressing plate (23). A ball (232) is rotatably connected to one end of the connecting rod (231). The ball (232) is in contact with the surface of the fixing rod (241). A sleeve (221) is fixedly connected inside the guide wheel (22). A second spring (244) is fixedly connected between the connecting rod (231) and the inner wall of the sleeve (221).

5. The ship-mounted folding jib crane for hydrological resource exploration according to claim 4, characterized in that, Convex plates (27) are fixedly connected to both ends of the magnetic rod (24). The convex plate (27) includes a first support section (271). A second support section (272) is provided on one side of the first support section (271). The thickness of the first support section (271) is greater than the thickness of the second support section (272).

6. The ship-mounted folding boom crane for hydrological resource exploration according to claim 1, characterized in that, The limiting assembly (30) includes a rotating plate (31) rotatably connected to one side of the guide wheel (22). There are two rotating plates (31). One ends of the two rotating plates (31) are rotatably connected through a connecting rod (32). The other ends of the two rotating plates (31) are rotatably connected through a spring telescopic rod (33).

7. The ship-mounted folding jib crane for hydrological resource exploration according to claim 6, characterized in that, One end of the rotating plate (31) is fixedly connected with a limit block (311), a limit plate (25) is fixedly connected inside the housing (21), a limit groove (251) is arranged inside the limit plate (25), and the sizes of the limit block (311) and the limit groove (251) are matched.

8. A folding boom crane on a ship for hydrological resource exploration according to claim 7, characterized in that, One end of the rotating plate (31) is fixedly connected with a pressing rod (312), one end of the pressing rod (312) is in contact with the convex plate (27), and one end of the pressing rod (312) is arc-shaped.

9. The on - ship folding boom crane for hydrological resource exploration according to claim 1, characterized in that, An electromagnet (28) is fixedly connected inside the housing (21), and the electromagnet (28) after being energized and the magnetic rod (24) are magnetically adsorbed to each other.

10. The on - ship folding boom crane for hydrological resource exploration according to claim 1, characterized in that, The lifting assembly (10) further includes a tower body (11), one end of the tower body (11) is rotatably connected with an inner arm (13) through a first hydraulic cylinder (12), one end of the inner arm (13) is rotatably connected with an outer arm (15) through a second hydraulic cylinder (14), both ends of the inside of the outer arm (15) and the housing (21) are fixedly connected, one end of the tower body (11) is fixedly connected with one end of a wire rope (16) through a winding frame, and a hook (17) is fixedly connected to one end of the wire rope (16).

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