CN210653605U

CN210653605U - Novel underwater brushless magnetic coupling propeller

Info

Publication number: CN210653605U
Application number: CN201921422706.1U
Authority: CN
Inventors: 张军; 倪祯贵; 张利; 包天金
Original assignee: Shanghai Yuhai Technology Co ltd
Current assignee: Shanghai Yuhai Technology Co ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-06-02
Anticipated expiration: 2029-08-29

Abstract

The utility model belongs to the technical field of the propeller, a novel underwater brushless magnetic coupling propeller is disclosed, including shell, watertight connector, motor main body subassembly, voltage stabilizing system, control components, driver, blade, the shell is kept away from watertight connector end fixing kuppe, the shell is close to kuppe end and is fixed with fixed hood, motor main body subassembly is located inside the shell, voltage stabilizing system is located motor main body subassembly and is close to the watertight connector side, control components are located voltage stabilizing system and are close to watertight connector side, the driver is located the motor main body subassembly is kept away from watertight connector side, the blade is located inside the kuppe, the blade is driven through the rotor; the propeller solves the problems of unreliable sealing, low coupling efficiency and the like, ensures that the propeller is suitable for external force influences such as complex sea conditions, sudden load and the like when used underwater, and greatly improves the magnetic coupling efficiency and the service life of the propeller through self structure optimization and control system optimization.

Description

Novel underwater brushless magnetic coupling propeller

Technical Field

The utility model belongs to the technical field of the propeller, especially, relate to a novel brushless magnetic coupling propeller under water.

Background

The underwater propeller is widely applied to the field of ships or deep diving operation, and provides power for underwater detection equipment or construction facilities. The underwater propeller usually adopts a propeller blade, and the interaction force of the blade rotating at high speed and water flow generates forward or backward thrust to enable the equipment to advance or retreat. The existing propeller generally adopts a transmission shaft to be directly connected with a blade, and the watertight protection of a motor coil is realized by utilizing the dynamic friction between the transmission shaft and a shell; the other propeller also adopts a brushless direct current motor and pushes the propeller to rotate through magnetic force, but the efficiency and the reliability are poor due to poor control system and poor flux control.

In summary, the problems of the prior art are as follows: the motor transmission shaft in the existing propeller is directly connected with the rotating propeller, so that although the conversion rate of the motor is improved in efficiency, the propeller has short service life and high failure rate due to the abrasion of dynamic friction on a sealing part and a special underwater environment. The reliability of such propellers is further reduced as the water depth increases.

Disclosure of Invention

Problem to prior art existence, the utility model provides a novel brushless magnetic coupling propeller under water.

The utility model is realized in such a way, a novel underwater brushless magnetic coupling propeller comprises a shell, a watertight connector at the front end of the shell, a motor main body component, a voltage stabilizing system, a control component, a driver and a blade, wherein the shell is fixed with a wind deflector far away from the watertight connector end, the shell is fixed with a fixed hood near the wind deflector end, the upper end of the fixed hood is in threaded connection with a set screw and is fixed with the shell through the set screw, the motor main body component is positioned inside the shell, the voltage stabilizing system is positioned at the side of the motor main body component near the watertight connector and is fixed inside the shell, the control component is positioned at the side of the voltage stabilizing system near the watertight connector and is fixed inside the shell, the driver is positioned at the side of the motor main body component far away from the watertight connector and is fixed inside the shell, the blades are driven by the rotor.

As the utility model relates to a novel preferred technical scheme of brushless magnetic coupling propeller under water, kuppe both sides threaded connection has set screw, set screw spiral-in end threaded connection the shell is fixed kuppe and shell.

As the utility model relates to a novel preferred technical scheme of brushless magnetic coupling propeller under water, the rotor includes impeller rotor and inner rotor, inner rotor fixed connection in the driver is close to the blade side, impeller rotor is located the inner rotor outside, and impeller rotor keeps away from inner rotor fixed connection the blade.

As the utility model relates to a novel preferred technical scheme of brushless magnetic coupling propeller under water, there is the clearance between inner rotor and the impeller rotor.

The utility model discloses an advantage and positive effect do:

1. the novel control system has a more excellent control module and is suitable for complex conditions such as nonlinearity, sudden load change, coupling deviation and the like;

2. the output torque of the motor is increased, the coupling efficiency of the rotor is high, and the magnetic steel is arranged precisely;

3. the problems of unreliable sealing, low coupling efficiency and the like are solved, the propeller is guaranteed to adapt to external force influences such as complex sea conditions, sudden load and the like when used underwater, and the magnetic coupling efficiency and the service life of the propeller are greatly improved through self structure optimization and control system optimization including the shell and the blades through hydrodynamics and finite element analysis;

4. the inner rotor and the outer impeller are in no contact, the abrasion problem is solved, and the service life is long.

Drawings

Fig. 1 is a schematic diagram of an overall external structure provided by an embodiment of the present invention.

Fig. 2 is a schematic diagram of an internal structure provided by the embodiment of the present invention.

In the figure: 1. the device comprises a watertight connector, a shell, a control component, a voltage stabilizing system, a motor main body assembly, a driver, a fixing screw, a flow guide cover, a fixing head cover, a fastening screw, an impeller rotor, an inner rotor, an impeller blade and a blade, wherein the shell is 2, the control component is 3, the voltage stabilizing system is 4, the motor main body assembly is 5, the driver is 6, the fixing screw is 7, the flow guide cover is 8.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

The structure of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 2, the novel underwater brushless magnetic coupling propeller provided by the embodiment of the present invention includes a housing 2, a watertight connector 1 at the front end of the housing 2, a motor body assembly 5, a voltage stabilizing system 4, a control component 3, a driver 6, and a blade 13, wherein the housing 2 is fixed with a wind deflector 8 at a position away from the watertight connector 1, the housing 2 is fixed with a fixed head cover 9 at a position close to the wind deflector 8, the upper end of the fixed head cover 9 is connected with a set screw 10 through a thread, and is fixed with the housing 2 through the set screw 10, the motor body assembly 5 is located inside the housing 2, the voltage stabilizing system 4 is located at a position close to the watertight connector 1 side of the motor body assembly 5 and is fixed inside the housing 2, the control component 3 is located at a position close to the watertight connector 1 side of the voltage stabilizing system 4 and is fixed inside the housing 2, the driver 6 is located at a, fixed inside the casing 2, said blades 13 are located inside the nacelle 8, the blades 13 being driven by the rotor.

Specifically, two sides of the air guide sleeve 8 are in threaded connection with fixing screws 7, and the fixing screws 7 are screwed into the end threads of the shell 2 to fix the air guide sleeve 8 and the shell 2.

Specifically, as shown in fig. 2, the rotor includes an impeller rotor 11 and an inner rotor 12, the inner rotor 12 is fixedly connected to the side of the driver 6 close to the blades 13, the impeller rotor 11 is located outside the inner rotor 12, and the impeller rotor 11 is fixedly connected to the blades 13 far from the inner rotor 12.

Specifically, as shown in fig. 1, a gap exists between the inner rotor 12 and the impeller rotor 11.

The utility model discloses a theory of operation: the watertight connector 1 is arranged on the end face of the shell 2, is an interface for signal transmission and power supply, and has sealing performance, and the water pressure resistance level reaches the application in full sea depth; the shell 2 adopts finite element analysis, has fluid dynamic characteristics, and has pressure resistance grade applied in full sea depth; the watertight connector 1 is connected with the control component 3 in the shell 2, the control component 3 is small in size and high in integration level, the diameter of the shell 2 is reduced, and the thickness of the shell is reduced; the control component 3 and the circuit voltage stabilizing system 4 jointly form a main component of the motor control system, and control the starting, stopping, positive and negative rotation signals and the mechanical feedback signals of the motor. The motor main body assembly 5 is arranged on a support seat in the shell 2, an inner main shaft is connected with the driver 6, the motor outputs torque, a winding coil is separated from a driving shaft, the problems of shaft clamping and coupler scratch cannot occur, and the service life of the motor is prolonged; the driver 6 is connected with the inner rotor 12 through a positioning groove, so that the rotor is stable and is not easy to loosen; the magnetic field of the inner rotor 12 is optimized, and the magnetic steels are specially arranged and precisely arranged, which is the key for improving the coupling efficiency, the inner rotor 12 and the impeller rotor 11 are concentrically arranged, the rotational inertia is small, and the coupling efficiency is further improved; the inner rotor 12 drives the impeller rotor 11 to rotate, and the output torque of the motor is changed into the rotation mode of the impeller, so that water flow is pushed to flow forwards or backwards; one end of the air guide sleeve fixing screw 7 is connected with the shell 2, and the other end of the air guide sleeve fixing screw is used for fixing the air guide sleeve 8, so that the air guide sleeve 8 and the shell 2 are concentrically fastened; the contact surface of the fixed head cover 9 is designed in a special structure, the impeller rotor 11 is fixed, and the performance of the impeller rotor 11 is hardly influenced; the fixed head cover 9 is fixed on the shell main body through a set screw 10; the blade 13 has the best fluid dynamic performance through fluid dynamic analysis.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.

Claims

1. The novel underwater brushless magnetic coupling propeller is characterized by comprising a shell (2), a watertight connector (1) at the front end of the shell (2), a motor main body component (5), a voltage stabilizing system (4), a control component (3), a driver (6) and blades (13), wherein a flow guide cover (8) is fixed at the end, far away from the watertight connector (1), of the shell (2), a fixing head cover (9) is fixed at the end, close to the flow guide cover (8), of the shell (2), a set screw (10) is in threaded connection with the upper end of the fixing head cover (9), the fixing head cover is fixed with the shell (2) through the set screw (10), the motor main body component (5) is located inside the shell (2), the voltage stabilizing system (4) is located at the side, close to the watertight connector (1), of the motor main body component (5), be fixed in inside shell (2), control components and parts (3) are located voltage stabilizing system (4) and are close to watertight connector (1) side, are fixed in inside shell (2), driver (6) are located motor body subassembly (5) are kept away from watertight connector (1) side, are fixed in inside shell (2), blade (13) are located inside kuppe (8), and blade (13) are through rotor drive.

2. The underwater brushless magnetic coupling propeller as recited in claim 1, wherein fixing screws (7) are connected to both sides of the air guide sleeve (8) in a threaded manner, and the fixing screws (7) are screwed into the end of the air guide sleeve to be connected with the shell (2) in a threaded manner so as to fix the air guide sleeve (8) and the shell (2).

3. The underwater brushless magnetic coupling propeller as recited in claim 1, wherein the rotor comprises an impeller rotor (11) and an inner rotor (12), the inner rotor (12) is fixedly connected to the side of the driver (6) close to the blades (13), the impeller rotor (11) is located outside the inner rotor (12), and the impeller rotor (11) is fixedly connected to the blades (13) far away from the inner rotor (12).

4. A novel underwater brushless magnetic coupled propeller as claimed in claim 3, characterized in that there is a gap between the inner rotor (12) and the impeller rotor (11).