CN214205172U

CN214205172U - Underwater motor

Info

Publication number: CN214205172U
Application number: CN202022042084.9U
Authority: CN
Inventors: 王立平; 刘亚; 廖勇; 张永莲; 石东升; 张炳昌; 李忠; 郭安; 向真辉; 李维亮; 郝鑫
Original assignee: Csic Hengyuan Technology Co ltd; Chongyi Industry Chongqing Co Ltd
Current assignee: Csic Hengyuan Technology Co ltd; Chongyi Industry Chongqing Co Ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-09-14
Anticipated expiration: 2030-09-17

Abstract

The utility model discloses an underwater motor, be annular stator and be annular rotor and output ring including casing, sealing package in the casing, the rotor endotheca is in the stator, and the rotor passes through water lubricated bearing I and stator normal running fit, the output ring endotheca is in the rotor and with rotor transmission cooperation. The utility model discloses a motor passes through the output ring output, and its simple structure, stability is good, and the rotor passes through lubricated bearing I of water and lubricated bearing II realizes reliable support and stable rotation, is adapted to the environment under water, improves corrosion resisting property.

Description

Underwater motor

Technical Field

The utility model relates to the technical field of motors, in particular to motor under water.

Background

The existing underwater motor is usually output through an output shaft, the output shaft is usually of a cantilever structure and is influenced by water flow, the stress of the output shaft is complex, the output shaft is easy to vibrate, and the stability of the paddle is poor.

Therefore, an underwater motor is needed to realize shaftless rim propulsion and improve the running stability of the underwater paddle.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an underwater motor realizes that shaftless rim impels, improves the stability of paddle operation under water.

The utility model discloses an underwater motor, be annular stator and be annular rotor and output ring including casing, sealed package in the casing, the rotor endotheca is in the stator, and the rotor passes through water lubricated bearing I and stator normal running fit, the output ring endotheca is in the rotor and with rotor transmission cooperation.

And furthermore, the motor further comprises a water lubrication bearing II, wherein the water lubrication bearing II is positioned at two axial ends of the rotor so that the rotor is in running fit with the shell.

Furthermore, an installation space is formed between the outer circle of the water lubricating bearing I and the inner circle of the machine shell, and the stator is fixed on the inner circle of the machine shell and is packaged in the installation space through packaging glue.

And the end rings are sleeved in the water-lubricated bearings I in a rotating fit mode, are axially pressed at two ends of the rotor and are in transmission fit with the rotor, and the water-lubricated bearings II are positioned at the axial outer sides of the end rings and enable the end rings to be in rotating fit with the shell.

Furthermore, a water guide groove is circumferentially formed in one end, close to the rotor, of the water lubricating bearing II in the axial direction.

Furthermore, a water guide gap is formed between the inner circle of the water lubrication bearing I and the outer circle of the rotor.

Furthermore, a Ru iron boron magnetic steel ring is sleeved on the outer circle of the rotor in a transmission matching mode.

Further, the outer circle of the Ru iron boron magnetic steel ring is sleeved with a protective sleeve in a transmission matching mode, and a water guide gap is formed between the outer circle of the protective sleeve and the inner circle of the water lubricating bearing I.

The utility model has the advantages that:

the utility model discloses a motor passes through the output ring output, and its simple structure, stability is good, and the rotor passes through lubricated bearing I of water and lubricated bearing II realizes reliable support and stable rotation, is adapted to the environment under water, improves corrosion resisting property, and the rotor suspends inside the stator, and its rotational resistance is little, can improve the transmission efficiency of motor.

Drawings

The invention is further described with reference to the following figures and examples.

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

FIG. 2 is a side view of the structure of FIG. 1;

FIG. 3 is a partially enlarged schematic view of FIG. 1;

Detailed Description

FIG. 1 is a schematic view of the overall structure of the present invention; FIG. 2 is a side view of the structure of FIG. 1; FIG. 3 is a partially enlarged schematic view of FIG. 1;

the underwater motor comprises a shell 1, a stator 2 which is sealed and packaged in the shell in an annular mode, a rotor 3 which is annular and an output ring 4, wherein the rotor is sleeved in the stator, the rotor is in running fit with the stator through a water lubricating bearing I5, and the output ring is sleeved in the rotor and is in running fit with the rotor. Referring to fig. 1 and 3, the casing includes a housing 1a, and a left end cover 1b and a right end cover 1c axially covering two ends of the housing, the two end covers are respectively installed at two axial ends of the housing and fastened by screws, the housing, the left end cover and the right end cover enclose an installation cavity for installing a stator and a rotor, an output ring is used as an output structure of the motor, a paddle 11 is fixed on an inner circle of the output ring, the stator is installed in the housing in a hot sleeved manner, a water lubrication bearing i 5 is sleeved on the inner circle of the stator, and the rotor is driven to rotate freely to drive the paddle 9 to generate thrust;

in this example, still include water lubricated bearing II 6, water lubricated bearing II is located rotor axial both ends make rotor and casing normal running fit. Water lubricated bearing I and water lubricated bearing II adopt SPB water lubricated combined material, this material has higher mechanical physical properties, excellent frictional wear characteristic, there is the self-lubricating mechanism, can reliably work under the water condition, wherein circle as lubricated face in the water lubricated bearing I, the axial of water lubricated bearing II is close to rotor one end and is regarded as lubricated face, combine shown in figure 3, circle in I outer lane of water lubricated bearing is fixed in the shell, II axial of water lubricated bearing keep away from rotor one end embedded fixed mounting in left end lid and right-hand member lid, reduce the rotation frictional force of rotor through water lubricated bearing I and water lubricated bearing II.

In this example, the installation space has between I5 excircle of water lubricated bearing and the interior circle of casing, the stator is fixed in the interior circle of casing and encapsulates in installation space through encapsulation glue 7. The packaging adhesive is made of epoxy resin, and epoxy resin can be filled in assembly gaps of all parts to prevent water, so that the water discharging and corrosion resistance of the motor are improved.

In this example, a pair of end rings 8 are also included, which are rotatably fitted inside the water lubricated bearings i and axially pressed against the two ends of the rotor and drivingly engaged with the rotor, and the water lubricated bearings ii are located axially outside the end rings and rotatably engage the end rings with the casing. The end ring is made of stainless steel, and is shown in a combined drawing 3, the outer circle of the end ring is in running fit with the inner circle of the water lubricated bearing I, the left end cover and the right end cover are axially pressed on the water lubricated bearing II and are axially compressed on the end ring through the water lubricated bearing II, so that the two end rings are axially compressed on the two ends of the rotor, the rotor is in transmission fit with the two end rings, the end ring is fixedly connected with the output ring through a bolt, and the rotor, the end ring and the output ring form the whole rotor assembly.

In this example, a water guide groove 6a is circumferentially formed at one end of the water lubricated bearing II, which is axially close to the rotor. The contact surface of the water lubricated bearing II and the end ring is provided with a water guide groove, the water guide groove is of an arc groove structure, and the water guide groove is favorably arranged in the water guide groove along with the rotation of the rotor, so that water is filled between the water lubricated bearing II and the end ring to form a water lubricated structure, and the lubrication effect is improved.

In this example, a water guide gap is formed between the inner circle of the water-lubricated bearing I and the outer circle of the rotor. At the moment, the two axial ends of the whole rotor are supported by the end rings and the water lubrication bearing II, and the rotor is suspended in the stator, so that the rotating friction resistance of the rotor can be reduced.

In this example, the Ru iron boron magnet steel ring 9 is sleeved on the outer circle of the rotor in a transmission matching manner. The Ru iron boron magnetic steel ring is sleeved on the rotor and is fixedly adhered, and the magnetic permeability is improved through the Ru iron boron magnetic steel ring.

In this example, the transmission fit cover of Ru indisputable boron magnetism steel ring 10 excircle has protective sheath 10, have the water guide clearance between protective sheath excircle and the I interior circle of water lubricated bearing. The protective sheath adopts the carbon fiber material, and the protective sheath accessible is pasted and is fixed in Ru indisputable boron magnet steel circle excircle, and the clearance between protective sheath and the water lubricated bearing I makes the rotor suspension in the stator, reduces the frictional resistance of rotor, improves the efficiency of motor.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. An underwater motor characterized by: the water-lubricated motor comprises a machine shell, an annular stator, an annular rotor and an output ring, wherein the stator is hermetically packaged in the machine shell, the rotor is sleeved in the stator, the rotor is in running fit with the stator through a water-lubricated bearing I, and the output ring is sleeved in the rotor and is in transmission fit with the rotor.

2. The underwater motor of claim 1, wherein: the rotor is in running fit with the shell through the water lubrication bearings II which are located at two axial ends of the rotor.

3. The underwater motor of claim 1, wherein: an installation space is arranged between the outer circle of the water lubricating bearing I and the inner circle of the machine shell, and the stator is fixed on the inner circle of the machine shell and is packaged in the installation space through packaging glue.

4. The underwater motor of claim 2 wherein: the end ring is sleeved in the water lubrication bearing I in a rotating fit mode, is axially pressed at two ends of the rotor and is in transmission fit with the rotor, and the water lubrication bearing II is located on the axial outer side of the end ring and enables the end ring to be in rotating fit with the machine shell.

5. The underwater motor of claim 2 wherein: and a water guide groove is formed in the axial direction of the water lubricating bearing II, close to one end of the rotor in the circumferential direction.

6. The underwater motor of claim 4 wherein: a water guide gap is formed between the inner circle of the water lubrication bearing I and the outer circle of the rotor.

7. The underwater motor of claim 4 wherein: the outer circle of the rotor is sleeved with a Ru iron boron magnetic steel ring in a transmission matching manner.

8. The underwater motor of claim 7 wherein: a protection sleeve is sleeved on the outer circle of the Ru iron boron magnetic steel ring in a transmission matching mode, and a water guide gap is formed between the outer circle of the protection sleeve and the inner circle of the water lubricating bearing I.