Energy saving device and method applied to oil tanker

Abstract

The invention relates to the technical field of oil tanker energy saving, in particular to an energy saving device applied to an oil tanker and a method thereof.The energy saving device comprises a rudder blade, the outer side of the rudder blade is sleeved with a protective plate capable of being folded and bent, and the side, close to a paddle, of the rudder blade is sleeved with the folded and bent protective plate; the outer side face of the bent part of the protection plate is further connected with a rudder ball, the height of the rudder ball is the same as the height of the axis of the paddle, and rudder fins are further arranged on the two sides of the rudder ball. The rudder ball and the rudder fin are integrally installed on the outer side of the protection plate, the rudder blades of different sizes can be installed by bending and attaching the protection plate to the rudder blades, the adaptability is improved, the protection plate is fixed through the clamping assembly, the installation operation is convenient and fast, and for the rudder blades additionally installed subsequently, convenience is achieved, and the efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy conservation of oil tankers, and more specifically to an energy conservation device and method applied to oil tankers. Background Art

[0002] At present, there are usually four common measures for ship energy conservation and emission reduction: designing a more optimized ship type; adopting a more energy-saving and environmentally friendly main engine system; adopting a more efficient propulsion system; adopting various energy recovery devices. Optimizing the ship type requires huge capital and time costs, and a lot of tests are required. The main engine is a highly technologically integrated system that requires huge capital investment. Only a few professional manufacturers are constantly improving it to achieve better energy-saving effects. After years of development, the technology of the propulsion system has become very mature, and it is difficult to improve it. The current hot research is the development and application of various energy recovery devices.

[0003] When the ship moves forward, the propeller pushes the water flow backward (straight and rotational) so that the ship obtains reaction force to move forward. Inevitably, the movement of water consumes part of the energy of the main engine, resulting in energy loss. If this part of energy (mainly the energy of water rotation) can be partially recovered, it will also have very considerable benefits. For this reason, some propeller front devices have appeared on the market, including propeller front fairing, fairing, hub cap fin (vortex elimination fin), rudder ball, rudder fin, etc., among which there are even more devices that combine the rudder ball and the rudder fin to design a device that combines the rudder ball and the rudder fin, but the device has some defects: 1. For ships that have not been installed in the early stage, manual welding is required during installation, and the welding operation is laborious and time-consuming; 2. After installation, the position of the rudder ball and the rudder fin is fixed, but in principle, the closer the distance of the rudder ball to the propeller hub, the better. The fixed position of the rudder ball and the rudder fin makes it impossible for the ship to navigate in an ideal energy-saving state, and the practicality is greatly reduced. Summary of the invention

[0004] The object of the present invention is to provide an energy saving device applied to an oil tanker to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an energy saving device applied to an oil tanker, comprising a rudder blade, wherein a foldable and bendable guard plate is sleeved on the outer side of the rudder blade, and the folded and bent guard plate is sleeved on a side of the rudder blade close to the propeller blade; The outer side surface of the bent part of the guard plate is also connected to a rudder ball, and the height of the rudder ball is the same as the height of the axis of the blade, and rudder fins are also arranged on both sides of the rudder ball; The two ends of the side of the guard plate that is bent and abuts against the rudder blade are symmetrically provided with clamping components, and the clamping components are used to connect the guard plate to the rudder blade; the upper end surface of the rudder blade is provided with a driving groove, and the driving groove is provided with a driving clamping component and a driving component for lateral displacement of the guard plate; The driving assembly includes a driving motor installed at one end of the driving groove, a driving screw connected to the driving motor, and two driving screw sleeves arranged on the outside of the driving motor, and the two driving screw sleeves are located on both sides of the clamping assembly. A driving plate is connected to the top of each driving screw sleeve, and the two driving plates are driven by the driving screw to achieve displacement and respectively fit with the side surfaces of the clamping assembly.

[0006] A further technical solution of the present application is as follows: the clamping assembly comprises two clamping grooves provided on the inner side of the guard plate, a double-headed motor installed inside a single clamping groove, and clamping screws symmetrically arranged and respectively connected to two power output shafts of the double-headed motor, the outer side of the single clamping screw is threadedly connected to a sliding block, the sliding block is slidably connected to the inside of the clamping groove, the outer side of the slider is also connected to one end of the clamping block, and the other end of the clamping block away from the slider is also connected to a pinning mechanism; A moving groove is symmetrically provided on the upper part of the driving groove, and a pinning mechanism is connected to the moving groove.

[0007] A further technical solution of the present application is as follows: a stabilizing groove is symmetrically opened at the lower part of the driving groove, and two stabilizing rods are slidably connected in the stabilizing groove, and the two stabilizing rods are respectively connected to both sides of the driving screw sleeve.

[0008] A further technical solution of the present application is as follows: the pinning mechanism includes an installation groove opened inside the clamping block, an electric push rod installed at one end of the installation groove, and a fixed block connected to the end of the electric push rod, the fixed block is slidably installed inside the installation groove, and a fixing pin is also connected to the side of the fixed block close to the clamping groove, and the fixing pin is inserted into the movable groove.

[0009] A further technical solution of the present application is: a rolling groove is also provided inside the movable groove, a ball is connected below the fixing pin, a push-in port is provided at the position of the movable groove corresponding to the ball, and the ball enters the rolling groove through the push-in port.

[0010] A further technical solution of the present application is that the number of the push-in ports is several.

[0011] A further technical solution of the present application is that the two driving plates are fitted with the sides of the clamping block and the fixing pin.

[0012] A further technical solution of the present application is that after the guard plate is bent, the upper and lower end surfaces can be connected to a sealing plate, and the size of the sealing plate can be adjusted according to the spacing between the two ends of the guard plate after bending.

[0013] A method for an energy saving device applied to an oil tanker, the method comprising the following steps: The method comprises the following steps: Installation: Fold the guard plate in half, and adjust the bending angle according to the size of the rudder blade to be installed. Then, splice the bent guard plate with the rudder blade, with the side with the rudder ball and rudder fin facing outwards, and the other side fitting the outside of the rudder blade; Fix and work through the clamping assembly to buckle the inner side of the guard plate with the inner side of the driving grooves opened at both ends of the rudder blade to achieve one-time pre-clamping, and connect it with the moving groove through the pin tightening mechanism in the clamping assembly to achieve stability of the guard plate; During adjustment and use, the driving assembly works, and two driving plates respectively disposed on both sides of the clamping assembly contact the clamping assembly respectively during the process of the driving assembly adjusting forward and backward, thereby realizing the forward and backward displacement of the clamping assembly and the guard plate.

[0014] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention provides a guard plate, a rudder ball, a rudder fin, a clamping assembly and a driving assembly. First, the rudder ball and the rudder fin are integrated and installed on the outside of the guard plate, and the guard plate is bent to fit the rudder blade. This can meet the installation requirements of rudder blades of different sizes and improve adaptability. The guard plate is fixed by the clamping assembly, and the installation operation is convenient. This is very convenient for the subsequent rudder blade to be installed, and the efficiency is improved. At the same time, the driving assembly is used in conjunction with the clamping assembly to ensure that the guard plate can be displaced forward and backward after installation. In this way, the oil tanker can customize the distance between the rudder ball and the propeller blade according to needs, and the practicality is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of an energy saving device applied to an oil tanker provided by the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle; Figure 4 For the present invention Figure 2 A schematic diagram of the enlarged structure at B in the middle; Figure 5 A top view of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the clamping assembly of the present invention; Figure 7 It is a structural schematic diagram of the pinning mechanism in the present invention.

[0016] Explanation of the symbols in the schematic diagram: 1. Rudder blade; 2. Guard plate; 3. Rudder fin; 4. Rudder ball; 5. Closing plate; 6. Clamping block; 7. Driving motor; 8. Driving screw; 9. Driving slot; 10. Driving screw sleeve; 11. Stabilizing bar; 12. Driving plate; 13. Stabilizing slot; 14. Push-in port; 15. Moving slot; 16. Rolling slot; 17. Clamping slot; 18. Double-headed motor; 19. Sliding block; 20. Clamping screw; 21. Mounting slot; 22. Ball; 23. Fixing block; 24. Fixing pin; 25. Electric push rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The present invention is further described below in combination with the embodiments.

[0018] See also Figures 1 to 7 In one embodiment of the present application, an energy saving device for oil tankers includes a rudder blade 1, wherein a foldable guard plate 2 is sleeved on the outer side of the rudder blade 1, and the folded guard plate 2 is sleeved on a side of the rudder blade 1 close to the propeller blade; The outer side surface of the bent part of the guard plate 2 is also connected to a rudder ball 4, and the height of the rudder ball 4 is the same as the height of the axis of the blade, and rudder fins 3 are also arranged on both sides of the rudder ball 4; The guard plate 2 is symmetrically provided with clamping components at both ends of the side surface of the rudder blade 1 after being bent, and the clamping components are used to connect the guard plate 2 with the rudder blade 1; the upper end surface of the rudder blade 1 is provided with a driving groove 9, and the driving groove 9 is provided with a driving clamping component and a driving component for lateral displacement of the guard plate 2; The driving assembly includes a driving motor 7 installed at one end of a driving groove 9, a driving screw 8 connected to the driving motor 7, and two driving screw sleeves 10 are arranged on the outside of the driving motor 7, and the two driving screw sleeves 10 are located on both sides of the clamping assembly. A driving plate 12 is connected to the top of each driving screw sleeve 10, and the two driving plates 12 are driven by the driving screw 8 to achieve displacement and fit with the sides of the clamping assembly respectively.

[0019] Furthermore, the clamping assembly includes two clamping grooves 17 opened on the inner side of the guard plate 2, a double-headed motor 18 installed inside a single clamping groove 17, and a clamping screw 20 symmetrically arranged and respectively connected to the two power output shafts of the double-headed motor 18, the outer side of the single clamping screw 20 is threadedly connected to a sliding block 19, the sliding block 19 is slidably connected to the inside of the clamping groove 17, the outer side of the slider is also connected to one end of the clamping block 6, and the other end of the clamping block 6 away from the slider is also connected to a pinning mechanism; A moving groove 15 is symmetrically opened on the upper part of the driving groove 9 , and a pinning mechanism is connected to the moving groove 15 .

[0020] Furthermore, a stabilizing groove 13 is symmetrically opened at the lower part of the driving groove 9 , and two stabilizing rods 11 are slidably connected in the stabilizing groove 13 , and the two stabilizing rods 11 are respectively connected to two sides of the driving screw sleeve 10 .

[0021] This embodiment is implemented as follows: first, the rudder ball 4 and the rudder fin 3 are integrated and installed on the outer side of the guard plate 2, and the guard plate 2 is bent to fit the rudder blade 1, which can meet the installation requirements of rudder blades 1 of different sizes, and the adaptability is improved. The guard plate 2 is folded in half, and the bending angle is adjusted according to the size of the rudder blade 1 to be installed. Then, the bent guard plate 2 is spliced ​​with the rudder blade 1, and the side with the rudder ball 4 and the rudder fin 3 installed faces outward, and the other side fits the outer side of the rudder blade 1; Then, the inner side of the guard plate 2 is buckled with the inner side of the driving groove 9 provided at both ends of the rudder blade 1 through the clamping assembly to achieve one-time pre-clamping, and is connected with the moving groove 15 through the pinning mechanism in the clamping assembly to achieve the stability of the guard plate 2. The guard plate 2 is fixed by the clamping assembly, and the installation operation is convenient, which is very convenient for the subsequent installation of the rudder blade 1 and improves the efficiency; During use, the driving assembly works, and two driving plates 12 respectively arranged on both sides of the clamping assembly contact the clamping assembly respectively during the process of the driving assembly adjusting forward and backward, which can ensure that the guard plate 2 can also move forward and backward after installation, so as to ensure that the oil tanker can customize the distance between the rudder ball 4 and the blade according to needs. Specifically, the driving motor 7 drives the driving screw 8 to rotate, and at the same time, the driving screw 8 drives the two driving screw sleeves 10 connected to the outside to rotate. During the rotation of the driving screw sleeve 10, the stabilizing bars 11 on both sides are in the stabilizing groove. 13 slides inside to limit the rotation of the driving screw sleeve 10, so that the two driving screw sleeves 10 are displaced at the same time. The driving screw sleeves 10 will drive the driving plates 12 connected to them to displace. When the driving screw 8 rotates forward, the driving screw sleeve 10 moves forward synchronously, and the driving plate 12 at the rear of the clamping assembly contacts the clamping assembly. When the driving screw 8 rotates reversely, the driving screw sleeve 10 moves backward synchronously, and the driving plate 12 at the front of the clamping assembly contacts the clamping assembly. In this way, the front and rear abutments of the clamping assembly and the guard plate 2 are achieved, and the guard plate 2 is pushed and displaced.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7As a preferred embodiment of the present application, the pinning mechanism includes a mounting groove 21 opened inside the clamping block 6, an electric push rod 25 installed at one end inside the mounting groove 21, and a fixed block 23 connected to the end of the electric push rod 25. The fixed block 23 is slidably installed inside the mounting groove 21, and a fixing pin 24 is also connected to the side of the fixed block 23 close to the clamping groove 17, and the fixing pin 24 is inserted into the movable groove 15.

[0023] Furthermore, a rolling groove 16 is provided inside the movable groove 15 , a ball 22 is connected below the fixing pin 24 , and a push-in port 14 is provided in the movable groove 15 at a position corresponding to the ball 22 , and the ball 22 enters the rolling groove 16 through the push-in port 14 .

[0024] Furthermore, the number of the push-in openings 14 is plural.

[0025] Furthermore, the two driving plates 12 are in contact with the side surfaces of the clamping block 6 and the fixing pin 24 .

[0026] Furthermore, after the guard plate 2 is bent, the upper and lower end surfaces can be connected with a sealing plate 5, and the size of the sealing plate 5 can be adjusted according to the spacing between the two ends of the guard plate 2 after bending.

[0027] This embodiment is implemented as follows: when the clamping assembly is working, it needs to work through the double-headed motor 18 inside the clamping groove 17. During the operation of the double-headed motor 18, it drives two symmetrically arranged clamping screws 20 to rotate. Similarly, the clamping screws 20 will drive the slider to rotate, and the slider is slidably arranged inside the clamping groove 17. The slider cannot rotate and instead moves inside the clamping groove 17. The two clamping screws 20 are symmetrically arranged, and the outer sliders move in opposite directions, so that the sliders can move closer to or away from each other. In the process of the sliders moving closer to each other, the clamping blocks 6 will be driven to move closer to each other. The clamping blocks 6 move closer to each other to fit with the two ends of the guard plate 2 to achieve clamping and fixing. At the same time, the pinning mechanism will enter the driving groove 9 inside the rudder blade 1. Then, the pinning mechanism works, and the fixing block 23 is pushed out by the electric push rod 25. The fixing block 23 slides inside the installation groove 21, and the fixing pin 24 is inserted into the movable groove 15. At the same time, since the outer side of the fixing pin 24 is also provided with a ball 22, the movable groove 15 is adapted to open a push-in port 14, and it is also ensured that the pinning mechanism can only be connected to the movable groove 15 at the position with the push-in port 14. Then, the pinning mechanism is pushed into the movable groove 15, thereby reinforcing the inner side of the guard plate 2 and the rudder blade 1 and achieving positioning. At the same time, after the driving mechanism contacts the pinning mechanism, it is pushed. At this time, the ball 22 will slide inside the rolling groove 16, thereby realizing the displacement of the guard plate 2, and the sealing plate 5 can fix the bending angle of the guard plate 2 to ensure that the guard plate 2 will not have unnecessary deformation after adaptation and installation.

[0028] See also Figure 1 - Figure 7 The method of the energy saving device applied to an oil tanker of the present invention comprises the following steps: Installation: Fold the guard plate 2 in half, and adjust the bending angle according to the size of the rudder blade 1 to be installed. Then, splice the bent guard plate 2 with the rudder blade 1, with the side with the rudder ball 4 and the rudder fin 3 facing outwards, and the other side fitting the outer side of the rudder blade 1; Fix and work through the clamping assembly to buckle the inner side of the guard plate 2 with the inner side of the driving groove 9 opened at both ends of the rudder blade 1 to achieve one-time pre-clamping, and connect it with the moving groove 15 through the pinning mechanism in the clamping assembly to achieve stability of the guard plate 2; During adjustment and use, the driving assembly works, and two driving plates 12 respectively disposed on both sides of the clamping assembly contact the clamping assembly respectively during the process of the driving assembly adjusting forward and backward, thereby realizing the forward and backward displacement of the clamping assembly and the guard plate 2.

[0029] To sum up, the present invention provides a guard plate 2, a rudder ball 4, a rudder fin 3, a clamping assembly and a driving assembly. First, the rudder ball 4 and the rudder fin 3 are integrated and installed on the outside of the guard plate 2, and the guard plate 2 is bent to fit the rudder blade 1. This can meet the installation requirements of rudder blades 1 of different sizes, and the adaptability is improved. The guard plate 2 is fixed by the clamping assembly, and the installation operation is convenient. This is very convenient for the subsequent installation of the rudder blade 1, and the efficiency is improved. At the same time, the driving assembly is used in conjunction with the clamping assembly to ensure that the guard plate 2 can be moved forward and backward after the installation is completed. In this way, the oil tanker can customize the distance between the rudder ball 4 and the propeller blade according to needs, and the practicality is greatly improved.

[0030] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An energy saving device for an oil tanker, comprising a rudder blade (1), characterized in that: The outer side of the rudder blade (1) is sleeved with a foldable guard plate (2), and the folded guard plate (2) is sleeved on a side of the rudder blade (1) close to the paddle blade; The outer side surface of the bent portion of the guard plate (2) is also connected to a rudder ball (4), and the height of the rudder ball (4) is the same as the height of the axis of the blade, and rudder fins (3) are also arranged on both sides of the rudder ball (4); The guard plate (2) is symmetrically provided with clamping components at both ends of the side surface that fits the rudder blade (1) after being bent, and the clamping components are used to connect the guard plate (2) to the rudder blade (1); a driving groove (9) is provided on the upper end surface of the rudder blade (1), and a driving clamping component and a driving component for lateral displacement of the guard plate (2) are provided in the driving groove (9); The driving assembly comprises a driving motor (7) installed at one end of the driving groove (9), a driving screw (8) connected to the driving motor (7), and two driving screw sleeves (10) arranged outside the driving motor (7), and the two driving screw sleeves (10) are located on both sides of the clamping assembly, and a driving plate (12) is connected to the top of each driving screw sleeve (10), and the two driving plates (12) are driven by the driving screw (8) to achieve displacement and respectively fit with the side surfaces of the clamping assembly.

2. The energy saving device for oil tankers according to claim 1 is characterized in that: The clamping assembly comprises two clamping grooves (17) provided on the inner side of the guard plate (2), a double-headed motor (18) installed inside a single clamping groove (17), and clamping screws (20) symmetrically arranged and respectively connected to two power output shafts of the double-headed motor (18); the outer side of the single clamping screw (20) is threadedly connected to a sliding block (19); the sliding block (19) is slidably connected to the inside of the clamping groove (17); the outer side of the sliding block is also connected to one end of the clamping block (6); and the other end of the clamping block (6) away from the sliding block is also connected to a pinning mechanism; A movable groove (15) is symmetrically provided on the upper part of the driving groove (9), and a pinning mechanism is connected to the movable groove (15).

3. The energy saving device for oil tankers according to claim 2 is characterized in that: A stabilizing groove (13) is symmetrically provided at the lower part of the driving groove (9), and two stabilizing rods (11) are slidably connected in the stabilizing groove (13). The two stabilizing rods (11) are respectively connected to two sides of the driving screw sleeve (10).

4. The energy saving device for oil tankers according to claim 2 is characterized in that: The pinning mechanism comprises a mounting groove (21) provided inside the clamping block (6), an electric push rod (25) mounted at one end inside the mounting groove (21), and a fixed block (23) connected to the end of the electric push rod (25), wherein the fixed block (23) is slidably mounted inside the mounting groove (21), and a fixed pin (24) is also connected to the side of the fixed block (23) close to the clamping groove (17), and the fixed pin (24) is inserted into the inside of the movable groove (15).

5. The energy saving device for oil tankers according to claim 4 is characterized in that: A rolling groove (16) is also provided inside the movable groove (15), a ball (22) is connected below the fixing pin (24), a push-in opening (14) is provided in the movable groove (15) at a position corresponding to the ball (22), and the ball (22) enters the rolling groove (16) through the push-in opening (14).

6. The energy saving device for oil tankers according to claim 5, characterized in that: The number of the push-in openings (14) is several.

7. The energy saving device for oil tankers according to claim 4, characterized in that: The two drive plates (12) are in contact with the side surfaces of the clamping block (6) and the fixing pin (24).

8. The energy saving device for oil tankers according to claim 2, characterized in that: After the guard plate (2) is bent, both the upper and lower end surfaces can be matched and connected with a sealing plate (5), and the size of the sealing plate (5) can be adjusted according to the spacing between the two ends of the guard plate (2) after being bent.

9. A method for applying an energy saving device to an oil tanker, characterized in that: The energy saving device for oil tankers according to claim 2, wherein the method comprises the following steps: Install, fold the guard plate (2) in half, adjust the bending angle according to the size of the rudder blade (1) to be installed, then splice the bent guard plate (2) and the rudder blade (1), with the side with the rudder ball (4) and the rudder fin (3) installed facing outwards, and the other side fitting the outer side of the rudder blade (1); The inner side of the guard plate (2) is fixed and connected to the inner side of the driving groove (9) provided at both upper and lower ends of the rudder blade (1) by the clamping assembly, thereby realizing one-time pre-clamping, and the guard plate (2) is connected to the moving groove (15) by the pinning mechanism in the clamping assembly, thereby realizing stability of the guard plate (2); During adjustment and use, the driving assembly works, and two driving plates (12) respectively disposed on both sides of the clamping assembly contact the clamping assembly respectively during the process of the driving assembly adjusting forward and backward, thereby achieving forward and backward displacement of the clamping assembly and the guard plate (2).

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