CN210455162U

CN210455162U - Catheter propeller

Info

Publication number: CN210455162U
Application number: CN201921320343.0U
Authority: CN
Inventors: 王岩卿; 陈伸; 刘凯华; 叶洋
Original assignee: Shenyang Hairen Technology Co ltd
Current assignee: Shenyang Hairen Technology Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-05-05
Anticipated expiration: 2029-08-15

Abstract

A kind of conduit propeller, relate to a underwater propeller, the said conduit propeller is made up of four components, namely, the outer casing already forms the stator, the second propeller forms integrally with rotor, there are front and back covers to form the sliding bearing of the rotor; the novel propeller comprises a propeller (1), an inner ring (2), a front cover (3), a screw (4), a stator (5), a shell (6) and a rear cover (7); the stator forms the shell of the propeller, namely a duct, the stator of the duct structure is sealed by sealing plastic and pouring glue, and the rotor is a sealed permanent magnet and is integrated with the propeller; the two ends of the rotor are supported on the concave platforms of the front and the rear covers to be in sliding fit. The stator of the conduit structure has a closed waterproof effect after being sealed and injected with plastic, and the rotor is a sealed permanent magnet and is integrated with the propeller, so the structure is simple, and the underwater propeller is suitable for miniaturization.

Description

Catheter propeller

Technical Field

The utility model relates to an underwater propulsor especially relates to a pipe propeller.

Background

The existing underwater propeller type propeller generally has a motor or a transmission device such as a blade shaft, a coupling and the like, is limited to practical use and has various structures.

Such as that disclosed in chinese patents: an electric ducted waterjet 201810844792.9; the water-jet propeller is provided with a shell fixing unit and a motor driving unit; the water inlet cover, the shell, the flow guide cover, the water spraying cover, the motor and the propeller are coaxially connected; the motor is fixed in the air guide sleeve, and a power output shaft of the motor is used as a rotating shaft and faces the direction of the water inlet sleeve, so that a series of devices are axially connected into a whole. The water sprayer with the structure can realize the underwater rapid movement of the underwater robot and the floating and submerging of the robot due to the large thrust. The volume is large, and the device is not suitable for an underwater propeller of a small robot.

Also disclosed in chinese patents: combined pump jet 201711321340.4; the outside pipe is the shrink shape, the propeller of cone structure, outside pipe both ends are water inlet and delivery port respectively, propeller inside sets up the pump and spouts propeller and spout the pump propeller, the pump spouts the propeller and includes that the pump spouts the rotor, the pump spouts stator and pump and spouts the motor, the pump spouts the motor and fixes in outside pipe through four stationary vanes, the pump is spouted motor rear portion and is connected the pump and spout the rotor, pump spouts rotor rear portion and sets up pump and spouts the stator rectification, the pump spouts the stator and links to each other with outside pipe, pump spouts stator center department and sets up and spouts pump impeller motor, spout pump impeller motor and connect the water spray propulsion pump. Whole device sets up in the telescopic cone, and independent pump spouts stator and pump and spouts the motor and also make the structure not simple, especially maintain the maintenance inconvenient.

Also disclosed in chinese patents: an underwater propeller 201710681845.5; the device is provided with a motor body, a propeller, a conduit and a lantern ring; a glue filling chamber is formed between the lantern ring and the motor, and the guide pipe is streamline; the propeller is connected with the motor in a double flat shape. The screw is arranged in the guide pipe, the glue filling chamber is provided with an independent bin, and waterproof glue is filled in the independent bin. The structure of the underwater propeller is simpler, but a streamline guide pipe and the propeller are combined to form a duct effect, and the structure is still a structure that the independent motor is connected with the propeller, so that the underwater propeller is formed into a two-body structure in both sealing property and dynamic property, and is not suitable for being used for small underwater propellers.

In summary, the underwater propellers applied or granted by the patent documents are all provided with a motor and a propeller, and a stator, a rotor and the propeller are matched with a special shaft and other accessories to form the underwater propeller.

Disclosure of Invention

An object of the utility model is to provide a pipe propeller, this pipe propeller have constituted the shell of propeller promptly by the stator, also be the pipe, its stator, the direct coupling of rotor electromagnetism, the utility model discloses saved transmission such as axle and shaft coupling that ordinary propeller needs, the watertight treatment has been done to the motor, and the mechanical part of whole motor can be worked in aqueous to need not consider motor body's heat dissipation problem, have higher reliability.

The utility model aims at realizing through the following technical scheme:

a kind of conduit propeller, the said conduit propeller is made up of four components, namely, the outer casing forms the stator, the second propeller forms integrally with rotor, and form the sliding bearing of the rotor before and after the one that is again; the structure comprises a propeller, an inner ring, a front cover, a screw, a stator, a shell and a rear cover; the stator forms the shell of the propeller, namely a duct, the stator of the duct structure is sealed by injection molding or glue filling, and the rotor is a sealed permanent magnet and is integrated with the propeller; the two ends of the rotor are supported on the concave platforms of the front and the rear covers to be in sliding fit.

The present invention may also be implemented in other ways than those described below, without being limited by the following preferred additional techniques.

The specific preferred technical scheme is as follows:

the duct propeller is in a propeller form formed by a plurality of blades, each blade is fixed on the inner wall of the inner ring, and the outer wall of the inner ring is arranged in the inner shell of the stator.

The two ends of the inner ring are provided with concave platforms which are embedded in concave rings of the front cover and the rear cover.

In the catheter propeller, concave platforms at two ends of the inner ring are in sliding fit with the front cover and the rear cover concave ring.

The end surfaces of the front cover and the rear cover are arc surfaces.

The outer ring of the front cover and the outer ring of the rear cover are embedded on the stator shell of the stator and are the same as the outer diameter of the stator shell.

According to the catheter propeller, a fixing screw is designed at the matching position of the front cover, the rear cover and the outer ring of the stator.

The utility model has the advantages and effects that:

the utility model discloses the pipe propeller comprises four components, promptly, firstly the shell both constitutes the stator, secondly screw and rotor an organic whole constitute, have around again the slide bearing that the lid constitutes the rotor, four parts have constituteed the utility model discloses. The stator forms the shell of the propeller, namely the duct, the stator and the rotor are electromagnetically and directly coupled, the stator of the duct structure has a closed waterproof effect after injection molding or glue filling, and the rotor is a sealed permanent magnet and is integrated with the propeller, so the structure is simple, and the propeller is suitable for miniaturization of the underwater propeller.

The utility model discloses saved transmission such as axle and shaft coupling that ordinary propeller needs, the watertight processing has been done to the motor, and the mechanical part of whole motor can work in aqueous to need not consider motor body's heat dissipation problem, have higher reliability.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

The components in the figure: the propeller comprises a propeller 1, an inner ring 2, a front cover 3, a screw 4, a stator 5, a shell 6 and a rear cover 7.

Detailed Description

The present invention will be described in detail with reference to the embodiments shown in the drawings.

The utility model discloses the product includes screw 1, inner circle 2, protecgulum 3, screw 4, stator 5, stator housing 6, back lid 7. The propeller 1 is in a propeller form formed by a plurality of blades, each blade is fixed on the inner wall of the inner ring 2, the outer wall of the inner ring 2 is arranged in the inner shell of the stator, concave platforms are arranged at the two ends of the inner ring 2, and the concave platforms are embedded in the concave rings of the front cover 3 and the rear cover 7; concave platforms at two ends of the inner ring 2 are in sliding fit with the front cover 3 and the rear cover 7; the width of concave platforms at two ends of the inner ring 2 is 5-10 mm, and the front and rear covers matched with the inner ring can be made of polytetrafluoroethylene or POM, UPE, HDPE UHMWPE, PEEK and other wear-resistant materials; the end surfaces of the front cover and the rear cover are arc surfaces, so that the resistance of water is reduced; the outer rings of the front cover and the rear cover are embedded on the stator shell 6 of the stator and have the same outer diameter as the stator shell 6; the matching part of the front cover and the rear cover and the outer ring of the stator is provided with a fixing screw 4, so that the front cover and the rear cover are not staggered.

The stator of the duct structure is subjected to injection molding or glue filling sealing treatment, the rotor is also a sealed permanent magnet, and the inner ring is fixedly provided with a propeller. After the power is switched on, the rotors supported on the front cover and the rear cover are in sliding fit, the rotors rotate to generate a rotating magnetic field, and the propellers in the rotors rotate to push water pressure to finish work.

When the sucker works, liquid is thrown out at a high speed due to the rotation of the impeller, hydraulic pressure flows out at a high speed according to the Bernoulli principle to form a local low-pressure area, and due to the existence of high-low pressure difference, the downward pressure which is the suction force of the sucker and has the same direction as the axis direction of the impeller of the sucker is formed and acts on the sucker. When the rotating speed is low, the flow speed of the liquid is low, the pressure difference is small, the suction force is small, and when the rotating speed is high, the pressure difference is large, and the suction force is high.

The motor directly drives the propeller, a rotor of the motor and propeller blades are designed into a whole, motor magnetic steel is installed on a rotor rim, and the rotor is installed on the edges of the front cover and the rear cover through concave platforms of the front cover and the rear cover and can freely rotate. The stator of the motor and the propeller guide shell are designed into a whole, and the armature core of the motor is installed and fixed in the guide shell. The rotor and the stator of the motor are respectively insulated and sealed, the whole motor works in water, and the heat dissipation problem of the motor can be well solved. The motor cable is connected with the motor control device through the diversion shell. The control device is arranged inside the underwater vehicle and is controlled by a computer.

Claims

1. A duct propeller is characterized in that the duct propeller consists of four components, namely, a shell forms a stator, a propeller and a rotor are integrally formed, and a front cover and a rear cover form a sliding bearing of the rotor; the novel propeller comprises a propeller (1), an inner ring (2), a front cover (3), a screw (4), a stator (5), a shell (6) and a rear cover (7); the stator forms the shell of the propeller, namely a duct, the stator of the duct structure is sealed by sealing plastic and pouring glue, and the rotor is a sealed permanent magnet and is integrated with the propeller; the two ends of the rotor are supported on the concave platforms of the front and the rear covers to be in sliding fit.

2. A ducted propeller as claimed in claim 1, characterised in that said propeller (1) is in the form of a propeller having a plurality of blades, each blade being secured to the inner wall of the inner ring (2), the outer wall of the inner ring (2) being mounted within the inner stator casing.

3. A catheter thruster according to claim 2, characterized in that the inner ring (2) is provided at both ends with recessed platforms which are embedded in recessed rings of the front cover (3) and the rear cover (7).

4. A catheter thruster according to claim 3, characterized in that the recesses at the two ends of the inner ring (2) are a sliding fit with the recesses of the front cover (3) and the rear cover (7).

5. The catheter pusher according to claim 4, wherein the end surfaces of the front and rear covers are circular arc surfaces.

6. A catheter pusher according to claim 5, characterised in that the outer rings of the front and rear covers are fitted over the stator housing (6) of the stator and have the same outer diameter as the stator housing (6).

7. The duct thruster according to claim 6, wherein the fixing screws (4) are designed at the matching positions of the front cover and the rear cover and the outer ring of the stator.