Repair device for hull surface renovation

Abstract

The present invention relates to the field of ship maintenance technology, and discloses a repair device for hull surface renovation, including a rigid frame and a driving mechanism, a water tank is arranged at the inner center of the rigid frame, a plurality of fixed plates are fixedly arranged on the rigid frame, each fixed plate is fixedly connected to the water tank through a connecting rod, a mounting cavity is fixedly installed on the top of the water tank, a nozzle is rotatably installed on the top of the mounting cavity, a water pump is arranged in the mounting cavity, and the water pump is used to transfer the medium in the water tank to the inner cavity of the nozzle; at least two groups of legs are arranged at the bottom end of the rigid frame, each group of legs is respectively arranged on both sides of the rigid frame along the width direction of the water tank, an electromagnetic module is fixedly installed at the bottom end of each leg, a walking wheel sleeve is rotatably sleeved on the electromagnetic module, and the driving mechanism is used to drive the walking wheel sleeve on at least one group of legs. Since the walking wheel sleeve does not need to generate magnetic force, a material such as plastic with certain elasticity can be used to protect the bottom of the ship.

Description

Technical Field

[0001] The invention relates to the technical field of ship maintenance, in particular to a repair device for refurbishing a hull surface. Background Art

[0002] Marine plants and animals such as barnacles will quietly attach to the bottom of the ship when it is sailing or anchored, increasing the ship's sailing resistance and reducing the ship's speed. In order to ensure the speed, the ship can only increase the power, increase fuel consumption, and the sailing cost is also higher. Moreover, the acids released by marine plants and animals such as barnacles will corrode the hull paint in the long term and cause the hull surface to rust.

[0003] For example, a Chinese invention patent with authorization announcement number CN115180095B discloses a repair device for refurbishing the surface of a hull, including a receiving seat and a driving unit; the driving unit is connected to the top of the receiving seat, a fixed frame is fixedly connected to the front side of the driving unit, an electric push rod is fixedly connected to the top of the front end of the fixed frame, and a rear warehouse is provided at the bottom of the rear end of the fixed frame through a rotational connection; by starting the dual-axis motor, the two sets of vertical shafts can be driven by chain transmission to rotate synchronously in the same direction, the two sets of cranks at the bottom of the vertical shaft can be driven to rotate synchronously, and the transmission frame can be driven to move in an elliptical trajectory, and the two sets of transmission frames on the left and right sides of the rear warehouse can be driven by bevel gear transmission to move synchronously in opposite directions, so that the two sets of external brushes at the bottom of the transmission frame can be driven to brush out the debris generated by friction with the surface of the hull to the left and right sides.

[0004] However, the above patent uses an electromagnetic chain to adsorb on the bottom of the ship and move through the electromagnetic chain. Since the electromagnetic chain needs to adsorb the entire device on the hull, the electromagnetic chain is tightly adsorbed on the bottom of the ship, and the electromagnetic chain needs to be made of metal material, which causes the metal electromagnetic chain to rub against the bottom of the ship while being adsorbed, thereby easily damaging the repaired bottom paint or the original bottom paint. Summary of the invention

[0005] The present invention aims to solve the technical problem that the electromagnetic chain scratches the paint surface of the ship bottom when it is moving due to the strong adsorption of the electromagnetic chain, which easily causes damage to the paint surface of the ship bottom. To this end, the present invention provides a repair device for refurbishing the surface of the ship body.

[0006] The embodiment of the present invention provides a repair device for hull surface renovation, comprising a rigid frame and a driving mechanism, wherein a water tank is arranged at the inner center of the rigid frame, a plurality of fixing plates are fixedly arranged on the rigid frame, each of the fixing plates is fixedly connected to the water tank through a connecting rod, a mounting cavity is fixedly installed on the top of the water tank, a nozzle is rotatably installed on the top of the mounting cavity, a water spray pump is arranged in the mounting cavity, and the water spray pump is used to transfer the medium in the water tank to the inner cavity of the nozzle;

[0007] At least two groups of legs are arranged at the bottom end of the rigid frame, and each group of legs is arranged on both sides of the rigid frame along the width direction of the water tank. An electromagnetic module is fixedly installed at the bottom end of each leg, and a walking wheel sleeve is rotatably provided on the electromagnetic module. The driving mechanism is used to drive the walking wheel sleeve on at least one group of the legs.

[0008] Preferably, the driving mechanism includes a linkage shaft connected between the walking wheel sleeves of each group of the legs, a motor mounting plate is fixedly installed on the bottom end of the water tank, a driving motor is fixedly installed on the motor mounting plate, and the output shaft of the driving motor is connected to the corresponding linkage shaft through a bevel gear set.

[0009] Preferably, the electromagnetic module comprises a mounting shaft fixedly mounted on the supporting leg, a housing is fixedly sleeved on the mounting shaft, an electromagnet is nested in the housing, an annular groove 1 is fixedly mounted on both sides of the housing, and a ball is rolled in the annular groove 1;

[0010] The walking wheel sleeve is a sleeve that is gap-mounted on the shell, a side of the sleeve close to the mounting shaft is provided with an avoidance hole, and the other side of the sleeve is closed, and each group of closed sides corresponding to the sleeve is connected through the linkage shaft, and an annular groove two is provided on both sides of the sleeve, and the annular groove two is correspondingly mounted outside the annular groove one, and a limiting edge is provided on the annular groove two for limiting the lateral movement of the annular groove one.

[0011] Preferably, the sleeve is provided with a plurality of rubber strips in an annular array.

[0012] Preferably, the water tank is connected to a water supply pipe, and one end of the water supply pipe away from the water tank is connected to an external water supply device.

[0013] Preferably, the water tank is streamlined.

[0014] Preferably, one side of the rigid frame is connected to the legs on one side of the rigid frame via a movable recovery frame;

[0015] The middle part of the linkage shaft is connected to the two ends of the linkage shaft through a hinged elastic telescopic rod for flexible transmission.

[0016] Preferably, a handle is connected to the rigid frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The present invention provides an electromagnetic module fixed on the support leg to provide a device to be adsorbed on the bottom of the ship, and then a walking wheel sleeve is rotatably mounted on the electromagnetic module to provide the friction required for walking. In this way, the electromagnetic module is fixed, thereby avoiding complex structures such as dynamic power supply added to the device due to power supply line problems, and the structure that performs adsorption is separated from the structure that performs walking. In this way, since the walking wheel sleeve does not need to generate magnetic force, materials such as plastic with a certain elasticity can be used to protect the bottom of the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first angle;

[0021] Figure 2 This is a schematic diagram of the overall structure of the second angle of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of the present invention from a third angle;

[0023] Figure 4 A longitudinal section of the travel wheel sleeve of the present invention;

[0024] Figure 5 A schematic diagram of an embodiment of the present invention passing through an uneven ship bottom;

[0025] Figure 6 It is a schematic diagram of another embodiment of the present invention passing through an uneven ship bottom.

[0026] In the figure: 1. Rigid frame; 2. Water tank; 3. Fixed plate; 4. Connecting rod; 5. Mounting cavity; 6. Nozzle; 7. Leg; 8. Linkage shaft; 9. Motor mounting plate; 10. Drive motor; 11. Bevel gear set; 12. Electromagnetic module; 13. Mounting shaft; 14. Housing; 15. Electromagnet; 16. Annular groove 1; 17. Ball bearing; 18. Sleeve; 19. Annular groove 2; 20. Limiting edge; 21. Rubber strip; 22. Handle; 23. Water supply pipe; 24. Movable recovery frame; 25. Elastic telescopic rod. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] The present invention provides a repair device for hull surface renovation, including a rigid frame 1 and a driving mechanism, a water tank 2 is arranged at the inner center of the rigid frame 1, a plurality of fixing plates 3 are fixedly arranged on the rigid frame 1, each fixing plate 3 is fixedly connected to the water tank 2 through a connecting rod 4, a mounting cavity 5 is fixedly installed on the top of the water tank 2, a nozzle 6 is rotatably installed on the top of the mounting cavity 5, a water spray pump is arranged in the mounting cavity 5, and the water spray pump is used to transfer the medium in the water tank 2 to the inner cavity of the nozzle 6; at least two groups of supporting legs 7 are arranged at the bottom end of the rigid frame 1, each group of supporting legs 7 is respectively arranged on both sides of the rigid frame 1 along the width direction of the water tank 2, an electromagnetic module 12 is fixedly installed at the bottom end of each supporting leg 7, a walking wheel sleeve is rotatably sleeved on the electromagnetic module 12, and the driving mechanism is used to drive the walking wheel sleeve on at least one group of supporting legs 7.

[0029] The working principle of the present invention is:

[0030] The present invention supplies water to the water tank 2 through the existing water supply equipment in the outside world, and then quickly concentrates the cleaning liquid from the water tank 2 to the top of the installation cavity 5 through the water spray pump (which is an existing conventional water pump). The installation cavity 5 is mainly connected to the nozzle 6 to realize a sealed rotation so as to adjust the spray direction of the nozzle 6. The sealed rotation can adopt the existing dynamic sealing structure (the specific principle is that the ring groove engages with the sealing ring), so that the nozzle 6 can concentrate on spraying liquid with huge energy, so that the barnacles and other debris on the hull are cleaned by these liquids. The control of the spray direction of the nozzle 6 can be controlled by a common servo motor to control the rotation of the gear, and a gear meshing with the gear is set on the nozzle 6 for control. Because this part is not the main improvement point of the present invention, it will not be elaborated in detail. The present invention adopts the solution of water jet cleaning mainly considering that this solution has a better protection effect on the paint surface than a scraper. Of course, a scraper can also be used on the water tank 2. To solve stubborn stains, but generally speaking, adjusting the pumping power is sufficient to deal with most stains; when the spraying range of the nozzle 6 is cleaned, the entire device needs to be moved to other uncleaned areas. First, the external power supply equipment supplies power to the electromagnetic module 12 through the line, so that the electromagnetic module 12 generates magnetism, and the four electromagnetic modules 12 will generate a magnetic field to generate attraction on the bottom of the ship, and the four walking wheel sleeves are rotated and sleeved on the outside of the electromagnetic module 12 one by one, and then the walking wheel sleeves are pressed on the bottom of the ship by the electromagnetic module 12, and then the driving mechanism directly drives the walking wheel sleeves to rotate relative to the electromagnetic module 12, so that the whole device moves forward. When the angle needs to be changed, it is only necessary to change the angle between the first group of legs 7 (i.e., the front row of legs 7) and the rigid frame 1. The direction of controlling the angle between the legs 7 and the rigid frame 1 can refer to the angle control of the aforementioned nozzle 6.

[0031] The above are the main improvements of the repair device for refurbishing the surface of the hull. The repair device also includes a paint repair mechanism. The repair mechanism can use any of the existing technologies. The main purpose of this improved part is to reduce the damage to the bottom paint of the ship, so that the repair mechanism only needs to repair the topcoat to reduce the difficulty of repair.

[0032] The technical solution of the present invention to solve the problem that the metal electromagnetic chain is easy to damage the paint surface when running on the bottom of the ship is:

[0033] The present invention provides an electromagnetic module 12 fixed on the support leg to provide a device for adsorption on the bottom of the ship, and then a walking wheel sleeve is rotatably mounted on the electromagnetic module 12 to provide the friction required for walking. In this way, the electromagnetic module 12 is fixed, thereby avoiding complex structures such as dynamic power supply added to the device due to power supply line problems, and the structure that performs adsorption is separated from the structure that performs walking. In this way, since the walking wheel sleeve does not need to generate magnetic force, materials such as plastic with a certain elasticity can be used to protect the bottom of the ship.

[0034] In some embodiments, Figures 1 to 3 As shown, the driving mechanism includes a linkage shaft 8 connected between the walking wheel sleeves of each set of legs 7, a motor mounting plate 9 is fixedly mounted on the bottom end of the water tank 2, a driving motor 10 is fixedly mounted on the motor mounting plate 9, and the output shaft of the driving motor 10 is connected to the corresponding linkage shaft 8 through a bevel gear set 11.

[0035] In this way, by driving the motor 10 to rotate, the output shaft of the motor 10 changes the transmission direction through the bevel gear set 11 to rotate the linkage shaft 8, so that the linkage shaft 8 can simultaneously drive the first row of travel wheel sleeves to rotate.

[0036] In fact, in addition to the above-mentioned schemes, the driving structure can also adopt a front-wheel drive scheme (that is, only the first row of running wheel sets are driven, and the rear row of running wheel sets follow the rotation), a rear-wheel drive scheme (that is, only the rear row of running wheel sets are driven, and the front row of running wheel sets follow the rotation and adjust the forward direction) and a four-wheel drive scheme.

[0037] In some embodiments, Figure 4As shown, the electromagnetic module 12 includes a mounting shaft 13 fixedly mounted on the support leg 7, a shell 14 is fixedly sleeved on the mounting shaft 13, an electromagnet 15 is nested in the shell 14, an annular groove 16 is fixedly mounted on both sides of the shell 14, and a ball 17 is rolled in the annular groove 16; the walking wheel sleeve is a sleeve 18 that is gap-sleeved on the shell 14, a side of the sleeve 18 close to the mounting shaft 13 is provided with an avoidance hole, and the other side of the sleeve 18 is closed, and each group of closed sides of the corresponding sleeve 18 is connected through a linkage shaft 8, and annular grooves 19 are provided on both sides of the sleeve 18, and the annular grooves 19 are sleeved outside the annular grooves 16 one by one, and the annular grooves 19 are provided with a limiting edge 20 for limiting the lateral movement of the annular grooves 16.

[0038] If the sleeve 18 is allowed to directly contact and wrap the shell 14 for rotation, a large friction force will be generated between the two. Because in the scheme, a gap is created between the shell 14 and the sleeve 18, and the two bear the vertical force through the mutually sleeved annular groove 16 and annular groove 2 19, and the limiting edges 20 on both sides can limit the sleeve 18 laterally, thereby ensuring the rotation of the sleeve 18.

[0039] In some embodiments, the sleeve 18 is provided with a plurality of rubber strips 21 in an annular array to increase friction and protect the paint surface.

[0040] Specifically, the water tank 2 is connected to a water supply pipe 23 , and one end of the water supply pipe 23 away from the water tank 2 is connected to an external water supply device.

[0041] Specifically, the water tank 2 is streamlined.

[0042] Specifically, a handle 22 is connected to the rigid frame 1 .

[0043] In some embodiments, Figure 6 As shown, one side of the rigid frame 1 is connected to the support leg 7 on one side of the rigid frame 1 through the movable recovery frame 24; the middle part of the linkage shaft 8 is connected to the two ends of the linkage shaft 8 through the hinged elastic telescopic rod 25 for flexible transmission.

[0044] like Figure 5 As shown, when the bottom of the boat is uneven and there is too much height difference between the running wheel sleeve on one side and the running wheel sleeve on the other side, the device will tilt due to the change of the center of gravity, causing the device to get stuck in the uneven place.

[0045] To this end, in some embodiments, the movable recovery frame 24 is hinged by a torsion spring, so that the movable recovery frame 24 can be in the same straight line with the rigid frame 1 under normal conditions. When there is a drop between the walking wheel sleeves on both sides, under the action of magnetic force, the walking wheel sleeve on the other side is adsorbed at a low position, and the movable recovery frame 24 is rotated by compressing the torsion spring. The compressed torsion spring will generate a restoring force, which will support the other side of the device to prevent the device from being stuck. Both ends of the elastic telescopic rod 25 are hinged to the two parts of the linkage shaft 8, thereby forming two universal joint-like transmission structures to achieve non-linear transmission.

[0046] The elastic telescopic rod 25 is a multi-section movable sleeve connected at both ends through a return spring, which can adapt to the change of its own length when the hinge angle at both ends is changed.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A repair device for hull surface renovation, comprising a rigid frame (1) and a drive mechanism, characterized in that: A water tank (2) is arranged at the inner center of the rigid frame (1); a plurality of fixed plates (3) are fixedly arranged on the rigid frame (1); each of the fixed plates (3) is fixedly connected to the water tank (2) via a connecting rod (4); a mounting cavity (5) is fixedly installed on the top of the water tank (2); a nozzle (6) is rotatably installed at the top of the mounting cavity (5); a water spray pump is arranged in the mounting cavity (5); the water spray pump is used to transfer the medium in the water tank (2) to the inner cavity of the nozzle (6); At least two groups of legs (7) are arranged at the bottom end of the rigid frame (1), and each group of legs (7) is arranged on both sides of the rigid frame (1) along the width direction of the water tank (2). An electromagnetic module (12) is fixedly mounted at the bottom end of each leg (7), and a running wheel sleeve is rotatably sleeved on the electromagnetic module (12). The driving mechanism is used to drive the running wheel sleeve on at least one group of legs (7); The driving mechanism comprises a linkage shaft (8) connected between the walking wheel sleeves of each group of the legs (7); a motor mounting plate (9) is fixedly mounted on the bottom end of the water tank (2); a driving motor (10) is fixedly mounted on the motor mounting plate (9); and an output shaft of the driving motor (10) is transmission-connected to the corresponding linkage shaft (8) via a bevel gear set (11); The electromagnetic module (12) comprises a mounting shaft (13) fixedly mounted on the support leg (7), a housing (14) fixedly sleeved on the mounting shaft (13), an electromagnet (15) nested in the housing (14), an annular groove (16) fixedly mounted on both sides of the housing (14), a ball (17) rollingly arranged in the annular groove (16); The travel wheel sleeve is a sleeve (18) which is loosely sleeved on the housing (14); a side of the sleeve (18) close to the mounting shaft (13) is provided with an avoidance hole; the other side of the sleeve (18) is closed; each group of closed sides corresponding to the sleeve (18) is connected via the linkage shaft (8); both sides of the sleeve (18) are provided with an annular groove (19); the annular groove (19) is sleeved outside the annular groove (16) in a one-to-one correspondence; and a limiting edge (20) is provided on the annular groove (19) for limiting the lateral movement of the annular groove (16); The sleeve (18) is provided with a plurality of rubber strips (21) in an annular array; One side of the rigid frame (1) is connected to a support leg (7) on one side of the rigid frame (1) via a movable recovery frame (24); The middle portion of the linkage shaft (8) is connected to both ends of the linkage shaft (8) via a hinged elastic telescopic rod (25) for flexible transmission.

2. The repair device for hull surface renovation according to claim 1, characterized in that: The water tank (2) is connected to a water supply pipe (23), and one end of the water supply pipe (23) away from the water tank (2) is connected to an external water supply device.

3. The repair device for hull surface renovation according to claim 1, characterized in that: The water tank (2) is streamlined.

4. The repair device for hull surface renovation according to claim 1, characterized in that: A handle (22) is connected to the rigid frame (1).

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