Multi-point propulsion application of ship auxiliary propeller

Abstract

The invention discloses multi-point propelling application of a naval vessel auxiliary propeller. The naval vessel auxiliary propeller comprises the naval vessel auxiliary propeller, wherein the naval vessel auxiliary propeller comprises a motor, propeller blades and a propeller outer cover; the motor comprises a motor rotor, a motor front end cover, a motor shell, an output end cover and a sealing ring, the output end cover is provided with an air pressure chamber, the front end and the rear end in the air pressure chamber are provided with ceramic water seals, the two ends of each ceramic water seal are provided with water blocking rings, the output end cover is provided with an inflation pipe and a drainage pipe, and a water sensor is arranged in the air pressure chamber and electrically connected with a water display; the auxiliary propeller for the naval vessel is applied to multi-point propulsion and auxiliary steering of the naval vessel and is driven by electric power. According to the invention, a single working mode of a naval vessel depending on a tail propeller is changed; the auxiliary propeller is linked with the steering operation system, so that better steering flexibility can be obtained; the noise is low; the motor is reasonable in structural design, not prone to water inflow, stable in work and long in service life.

Description

Technical Field

[0001] The present invention relates to the technical field of naval vessel propulsion, and in particular to the application of multi-point propulsion of naval vessel auxiliary thrusters. Background Art

[0002] At present, ships generally rely on the tail propeller alone to work. To meet the needs, they must have a sufficiently high speed and a large displacement to obtain the required thrust. In fact, part of the energy is not fully utilized, but is wasted with the flow of water; at the same time, the high-speed propeller also increases the water-borne noise; in addition, most existing propellers are driven by diesel engines, combined with propulsion reduction gear devices and other mechanical transmission mechanisms, which not only take up space, but also have a lot of internal noise.

[0003] After decades of exploration and practice, the shipbuilding industry has reached a consensus: the future development direction of ships is to use integrated power systems to drive. Therefore, the multi-point propulsion technology of auxiliary thrusters of ships driven by electricity needs to be studied urgently. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned technology and provide the application of multi-point propulsion of auxiliary thrusters for ships and vessels.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is the application of multi-point propulsion of auxiliary propellers for ships and vessels: comprising auxiliary propellers for ships and vessels, wherein the auxiliary propellers for ships and vessels comprise motors, propeller blades, and propeller housings;

[0006] The motor comprises a motor rotor, a motor front end cover, a motor housing, and an output end cover, wherein the motor front end cover and the output end cover are respectively fixedly connected to the two ends of the motor housing by bolts, and sealing rings are arranged between the motor front end cover and the motor housing, and between the output end cover and the motor housing, and the motor rotor and the motor front end cover, and the motor rotor and the output end cover are all rotatably connected by bearings, and the output end cover is provided with an air pressure chamber, and the front and rear ends of the air pressure chamber are provided with ceramic water seals, and both ends of the ceramic water seal are provided with water blocking rings, and the ceramic water seal and the water blocking ring are both sleeved on the motor rotor, and the output end cover is fixedly connected with a gland by bolt sealing, and the output end cover is provided with an air filling pipe and a drainage pipe connected with the air pressure chamber, and a water sensor is arranged in the air pressure chamber, and the water sensor is electrically connected with a water display, and the motor and the propeller cover are fixed together by a bracket and bolts;

[0007] The auxiliary propeller for ships and vessels is used for multi-point propulsion and auxiliary steering of ships and vessels, and the auxiliary propeller for ships and vessels is driven by electricity.

[0008] Furthermore, the auxiliary propellers of the ship are symmetrically installed on the left and right sides of the ship, and the number of the auxiliary propellers of the ship on each side is one or more.

[0009] Furthermore, the auxiliary thruster of the ship is installed in a track sliding manner on the front and middle part of the underwater part of the ship to ensure a safe distance when the anchor hook is lifted, and a fixed slide is welded and fixed on the ship. The thruster outer cover is slidably connected to the fixed slide and fixed by a fixing part, so that the position can be adjusted according to actual needs.

[0010] Furthermore, auxiliary steering is achieved by using the rotation speed difference between the auxiliary propellers of the ship on the left and right sides of the ship.

[0011] Compared with the prior art, the advantages of the present invention are as follows: the present invention changes the mode in which ships and vessels rely solely on the single working mode of the rear propeller, and a higher speed can be obtained without greatly increasing the total power; the auxiliary propeller and the steering operating system are linked to obtain better steering flexibility; an outer cover is provided on the outside of the propeller, so that the force of the propeller is not spread as centrifugal force, which can increase the speed, improve the operational flexibility, and improve the survivability of the ship; it adopts electric drive and does not rely on the independent operation of the single rear propeller, so once a rear propeller failure occurs, the ship and vessel can still sail under the premise of power guarantee; the noise is low; the motor structure is reasonably designed and not easy to get in, and once water leaks into the air pressure chamber, an alarm is given through the sensor display, the drain pipe can be opened, and air is inflated through the inflation pipe to discharge the water, and the drain pipe and the inflation pipe are closed, which are not easy to be damaged, work stably, and have a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a reference diagram of the application status of the multi-point propulsion of the auxiliary thruster of a ship or vessel of the present invention.

[0013] Figure 2 It is a structural schematic diagram of the connection part between the auxiliary propeller of a ship and the hull in the application of the multi-point propulsion of the auxiliary propeller of a ship of the present invention.

[0014] Figure 3 It is a schematic diagram of the explosion structure of a ship's auxiliary propulsion system.

[0015] As shown in the figure:

[0016] 1. Motor, 101. Motor rotor, 102. Motor front end cover, 103. Motor housing, 104. Output end cover, 105. Sealing ring, 106. Bearing, 107. Air pressure chamber, 108. Ceramic water seal, 109. Water blocking ring, 110. Pressure cover, 111. Inflatable tube, 112. Drain pipe, 113. Water sensor, 114. Water display, 2. Propeller blades, 3. Propeller cover, 4. Fixed slide. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Embodiment 1, in combination with Figure 1-3 , the application of multi-point propulsion of auxiliary propellers for ships and vessels, including auxiliary propellers for ships and vessels, wherein the auxiliary propellers for ships and vessels include a motor 1, propeller blades 2, and a propeller cover 3;

[0019] The motor 1 includes a motor rotor 101, a motor front end cover 102, a motor housing 103, and an output end cover 104. The motor front end cover 102 and the output end cover 104 are respectively fixed to the two ends of the motor housing 103 by bolts. A sealing ring 105 is provided between the motor front end cover 102 and the motor housing 103, and between the output end cover 104 and the motor housing 103. The motor rotor 101 and the motor front end cover 102, and the motor rotor 101 and the output end cover 104 are rotatably connected through a bearing 106. The output end cover 104 is provided with an air pressure chamber 107. Ceramic water seals 108 are provided at the front and rear ends of the air pressure chamber 107, and water blocking rings 109 are provided at both ends of the ceramic water seal 108. The ceramic water seal 108 and the water blocking ring 109 are both sleeved on the motor rotor 101. The output end cover 104 is fixedly connected with a pressure cover 110 by bolt sealing. The output end cover 104 is provided with an inflation pipe 111 and a drainage pipe 112 connected to the air pressure chamber 107. A water sensor 113 is provided in the air pressure chamber 107, and the water sensor 113 is electrically connected to a water display 114. The motor 1 and the propeller cover 3 are fixed together by a bracket and bolts. The propeller cover 3 is used to prevent the propeller force from spreading as centrifugal force, so the propulsion effect is good, the energy utilization rate is high, and energy waste is avoided; multiple water-blocking preventive measures are adopted, and a large air pressure chamber 107 is provided on the circumference of the ceramic water seal 108. The air pressure chamber 107 is usually kept at a certain air pressure to prevent water from leaking into the air pressure chamber 107. Once water leaks into the air pressure chamber 107, it is sensed by the water sensor 113, and the water display 114 displays an alarm. The electric control valve on the drain pipe 112 and the electric control valve on the inflation pipe 111 can be opened, and air is inflated into the air pressure chamber 107 through the inflation pipe 111 to discharge the water, and then the electric control valve on the drain pipe 112 and the electric control valve on the inflation pipe 111 can be closed.

[0020] The auxiliary propeller for ships and vessels is used for multi-point propulsion and auxiliary steering of ships and vessels, and the auxiliary propeller for ships and vessels is driven by electricity.

[0021] The auxiliary propellers of the ship are symmetrically installed on the left and right sides of the ship. The number of the auxiliary propellers of the ship on each side is one or more, which is determined according to the tonnage requirements of the ship.

[0022] The ship auxiliary propeller is installed in the front and middle of the underwater part of the ship by rail sliding, ensuring the safe distance when the anchor hook is lifted, and the fixed slideway 4 is welded and fixed on the ship. The propeller cover 3 is slidably connected with the fixed slideway 4 and fixed by a fixing part, so that the position can be adjusted according to actual needs. Multi-point propulsion is carried out by the ship auxiliary propeller, and a higher speed can be obtained without a large increase in total power.

[0023] Auxiliary steering is achieved by the speed difference between the auxiliary propellers of the ship on the left and right sides of the ship. The steering operation can be made more flexible by linkage with the steering operating system.

[0024] In the present invention, since the motor is used to provide power, there is no need to open a hole in the hull, and it is sufficient to weld a fixed slideway 4 at the corresponding part of the hull. If applied to a submarine, the thruster cover 3 can be designed to be adjustable so that the motor 1 can be switched to a horizontal state or a vertical state. The vertical state can be used to assist the submarine in buoyancy when the submarine fails, provided that power is guaranteed.

[0025] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the embodiments of the present invention, "multiple" means at least 2.

[0027] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 connection 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.

[0028] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. The application of multi-point propulsion of auxiliary thrusters of ships and vessels is characterized by: It comprises an auxiliary propeller for a ship or a naval vessel, wherein the auxiliary propeller for the ship or the naval vessel comprises a motor (1), propeller blades (2), and a propeller housing (3); The motor (1) comprises a motor rotor (101), a motor front end cover (102), a motor housing (103), and an output end cover (104); the motor front end cover (102) and the output end cover (104) are respectively fixed to two ends of the motor housing (103) by bolts; a sealing ring (105) is provided between the motor front end cover (102) and the motor housing (103), and between the output end cover (104) and the motor housing (103); the motor rotor (101) and the motor front end cover (102), and the motor rotor (101) and the output end cover (104) are rotatably connected by bearings (106); the output end cover (104) is provided with an air pressure chamber (107); The front and rear ends of the air pressure chamber (107) are both provided with ceramic water seals (108), both ends of the ceramic water seal (108) are provided with water blocking rings (109), the ceramic water seal (108) and the water blocking ring (109) are both sleeved on the motor rotor (101), the output end cover (104) is fixedly connected to a gland (110) by bolt sealing, the output end cover (104) is provided with an air filling pipe (111) and a drainage pipe (112) which are connected to the air pressure chamber (107), the air pressure chamber (107) is provided with a water sensor (113), the water sensor (113) is electrically connected to a water display (114), and the motor (1) and the thruster cover (3) are fixed together by a bracket and bolts; The auxiliary propeller for ships and vessels is used for multi-point propulsion and auxiliary steering of ships and vessels, and the auxiliary propeller for ships and vessels is driven by electricity.

2. The application of multi-point propulsion of auxiliary propellers for ships and vessels according to claim 1 is characterized by: The auxiliary propellers of the ship are symmetrically installed on the left and right sides of the ship, and the number of the auxiliary propellers of the ship on each side is one or more.

3. The application of multi-point propulsion of auxiliary propellers for ships and vessels according to claim 2 is characterized by: The auxiliary propeller of the ship is installed in the front and middle part of the underwater part of the ship by rail sliding, so as to ensure the safe distance when the anchor hook is lifted. A fixed slideway (4) is welded and fixed on the ship. The propeller cover (3) is slidably connected with the fixed slideway (4) and fixed by a fixing part, so that the position can be adjusted according to actual needs.

4. The application of multi-point propulsion of auxiliary propellers for ships and vessels according to claim 2 is characterized by: Auxiliary steering is achieved by the rotation speed difference between the auxiliary thrusters of the ship on the left and right sides of the ship.

Images