CN117375327B - Axial flux motor with position feedback under water - Google Patents
Axial flux motor with position feedback under water Download PDFInfo
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- CN117375327B CN117375327B CN202311369563.3A CN202311369563A CN117375327B CN 117375327 B CN117375327 B CN 117375327B CN 202311369563 A CN202311369563 A CN 202311369563A CN 117375327 B CN117375327 B CN 117375327B
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- 238000007789 sealing Methods 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000000084 colloidal system Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
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- 238000004804 winding Methods 0.000 claims description 4
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- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000004382 potting Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- OBIUJJSQKPGKME-UHFFFAOYSA-N 1,2,3,5-tetrachloro-4-(2,4,6-trichlorophenyl)benzene Chemical compound ClC1=CC(Cl)=CC(Cl)=C1C1=C(Cl)C=C(Cl)C(Cl)=C1Cl OBIUJJSQKPGKME-UHFFFAOYSA-N 0.000 description 10
- PYZHTHZEHQHHEN-UHFFFAOYSA-N 1,2,3,4,5-pentachloro-6-(2,5-dichlorophenyl)benzene Chemical compound ClC1=CC=C(Cl)C(C=2C(=C(Cl)C(Cl)=C(Cl)C=2Cl)Cl)=C1 PYZHTHZEHQHHEN-UHFFFAOYSA-N 0.000 description 5
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/35—Devices for recording or transmitting machine parameters, e.g. memory chips or radio transmitters for diagnosis
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses an underwater axial magnetic flux motor with position feedback, which relates to the related field of underwater motors, and comprises a motor body, wherein by adopting an axial magnetic flux distribution structure of components such as magnetic steel, a casing front cover, a stator assembly and the like, space is saved and efficiently utilized, so that the application effect of the motor on other equipment is improved while the problem of larger size of a conventional motor is reduced, an absolute value encoder is utilized for providing feedback of the rotating absolute position for a rotating shaft, meanwhile, a potting material is adopted for potting protection of the stator assembly, and a casing rear cover adopts a static sealing structure and a humidity sensor for detecting the sealing performance of the static sealing structure in real time, so that the waterproof performance is improved; the motor body under water is provided with underwater position feedback and offset phenomenon generated by water flow and vibration during motor operation through separate work control and collection of the control PCB and the collection PCB.
Description
Technical Field
The invention relates to the field of underwater motors, in particular to an underwater axial flux motor with position feedback.
Background
The axial magnetic field motor is also called a disc motor, namely a main magnetic field and a motor along the direction of a rotating shaft; the axial magnetic field motor is different from a common motor, the magnetic flux direction of the axial magnetic field motor is axial, a current carrying conductor system is radially arranged, and a stator and a rotor iron core are of a disc structure; and position feedback refers to absolute position detection and control of the rotational angle of the shaft of the axial flux motor.
In order to obtain the characteristics of low rotation speed and large torque, the conventional radial motor is large in structural size, and if the waterproof structure and the position sensor are added in the underwater use occasion, the radial size and the axial size are further increased, so that the structural layout is not facilitated; the existing underwater motor needs to be considered to be designed in a movable sealing way at the output shaft end, if the motor is used under deeper water, the motor needs to be compensated for oil filling, and a compensator is arranged outside, so that the structure is increased; the existing underwater axial flux motor lacks absolute position feedback and working state inclination state detection, and accurate position control is difficult to achieve.
Disclosure of Invention
Therefore, in order to solve the above-mentioned shortcomings, the present invention provides an axial flux motor with position feedback under water.
The invention is realized in such a way that an underwater axial flux motor with position feedback is constructed, and the device comprises a motor body;
the motor body comprises a rotor core; the inner groove of the rotor core is fixedly provided with magnetic steel for electromagnetic sensing; a rotating shaft is fixedly arranged at the circular through hole of the rotor core; the rear end of the rotor core is provided with a shell front cover; the rear end of the shell front cover is fixedly provided with a shell rear cover, the shell front cover and the shell rear cover are surrounded to form a space, and a stator assembly is arranged in the space; a bearing is arranged at the position of the center hole in the rear cover of the shell in an interference fit manner; the rear end of the rear cover of the shell is fixedly provided with a rear end assembly; the rear end side of the rotating shaft is fixedly inserted with the coupling end at the front side of the absolute value encoder.
Preferably, the surrounding space formed by the front cover and the rear cover of the casing and the gap of the stator assembly are encapsulated by sealing colloid, wherein the sealing colloid is resin or crystal dripping colloid; the stator assembly is specifically composed of a coil winding, a stator core and wires.
Preferably, the rear end assembly comprises a rear end cover which is mounted on the rear side plane of the rear cover of the machine shell through static sealing of a sealing ring; a partition board for separation is fixedly arranged in the rear end cover; the outer ring side of the partition plate is fixedly adhered with a rubber ring for sealing and damping; the control PCB for controlling the action is arranged at the rear end bolt of the partition plate and is integrally arranged with the absolute value encoder; the rear end bolt of the partition plate is provided with an acquisition PCB for acquiring data; a pressure cylinder for detection is slidably arranged at the through hole at the center of the partition plate; and a compensation component is arranged in the rear end cover.
Preferably, the rear end cover is connected with the rear cover of the shell through a static sealing structure, a hollow steel is arranged at the center of a groove at the front end of the rear end cover, and a pressure cylinder is welded and fixed at the front end of the hollow steel; the stator assembly is directly connected with the control PCB board from the back of the rear cover of the shell through three-phase outgoing lines.
Preferably, an acceleration sensor, a gyroscope sensor, a gravity sensor, a positioner and a pressure sensor are respectively fixed on the acquisition PCB through soldering tin, and the pressure sensor is fixedly arranged with a cylinder body of the pressure cylinder; a humidity sensor is arranged in the cavity at the rear end of the partition board.
Preferably, the compensation component comprises heating laminate plates which are arranged on the left side and the right side of the front end of the rear end cover through bolts; the heating laminate bolt is arranged at the rear end of the first fan-shaped box body; arc-shaped air cylinders for adjustment are fixedly welded on the upper side and the lower side of the first fan-shaped box body; and an arc piston rod of the arc-shaped air cylinder is fixedly arranged with a plate body in the second fan-shaped box body.
Preferably, the compensation assembly further comprises: the second fan-shaped box body is fixedly arranged on the upper side and the lower side of the front end of the rear end cover, and the pipeline on the left side and the right side of the second fan-shaped box body is provided with a micro valve; the micro valve at the left end of the second fan-shaped box body is arranged with a micro air pump air hole pipeline; and the micro valve at the right end of the second fan-shaped box body is connected with the connecting pipe through a pipeline.
Preferably, an electric heating wire for heating is arranged in the heating laminate, and the electric heating wire is electrically connected with the control PCB; piston plates are slidably arranged on the left side and the right side of the inside of the second fan-shaped box body.
Preferably, the front end space of the rear end cover is set as a front cavity and a rear cavity by the baffle plate at the rear end of the rear cover of the shell, and the connecting pipe connected with the right end of the micro valve is respectively communicated with the front cavity and the rear cavity of the baffle plate; the left air hole of the miniature air pump is provided with a connecting pipe for connecting the cavities at the two sides of the front end of the rear end cover.
Preferably, the first fan-shaped box body is internally provided with high thermal expansion gas, and the first fan-shaped box body and the second fan-shaped box body are fan-shaped square boxes with openings of 60 degrees.
The invention has the following advantages: the invention provides an axial flux motor with position feedback of an underwater belt by improving the motor, and compared with the same type of equipment, the motor has the following improvement:
the underwater axial flux motor with position feedback provided by the invention has the advantages that through adopting the axial flux distribution structure of the components such as the magnetic steel, the front cover of the shell, the stator assembly and the like, the space is saved and efficiently utilized, the problem of larger size of a conventional motor is reduced, the application effect of the motor on other equipment is improved, an absolute value encoder is utilized for providing feedback of the rotating absolute position for the rotating shaft, meanwhile, the stator assembly is encapsulated and protected by adopting an encapsulating material, and the rear cover of the shell adopts a static sealing structure and a humidity sensor for detecting the sealing performance of the static sealing structure in real time, so that the waterproof performance is improved; the motor body under water is provided with underwater position feedback and offset phenomenon generated by water flow and vibration during motor operation through separate work control and collection of the control PCB and the collection PCB.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is an exploded bottom view of the motor body of the present invention;
fig. 3 is a schematic rear-view perspective structure of a rotor core and magnetic steel of the present invention;
FIG. 4 is a schematic view of the front and rear covers of the housing and the bearing shaft side structure of the present invention;
FIG. 5 is a schematic perspective view of a stator assembly of the present invention;
FIG. 6 is a schematic diagram of an exploded perspective view of the absolute value encoder and back-end assembly of the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6A in accordance with the present invention;
fig. 8 is a schematic top perspective view of the compensation assembly of the present invention.
Wherein: the motor comprises a motor body-1, a rotor core-11, magnetic steel-12, a rotating shaft-13, a casing front cover-14, a stator assembly-15, a casing rear cover-16, a bearing-17, a rear end assembly-18, an absolute value encoder-19, a rear end cover-181, a partition plate-182, a rubber ring-183, a control PCB-184, a collection PCB-185, a pressure cylinder-186, a compensation assembly-187, a heating laminate-1871, a first fan-shaped box-1872, an arc-shaped cylinder-1873, a second fan-shaped box-1874, a micro valve-1875, a micro air pump-1876 and a connecting tube-1877.
Detailed Description
The principles and features of the present invention are described below with reference to fig. 1-8, the examples being provided for illustration only and not for limitation of the scope of the invention. The invention is more particularly described by way of example in the following paragraphs with reference to the drawings. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
Embodiment one:
referring to fig. 1 to 8, the underwater axial flux motor with position feedback of the present invention includes a motor body 1; the motor body 1 includes a rotor core 11; a magnetic steel 12 for electromagnetic sensing is fixed in the inner groove of the rotor core 11, and rotation transmission is provided for the rotor core 11 through magnetic field induction of the magnetic steel 12; a rotating shaft 13 is fixedly arranged at the circular through hole of the rotor core 11, and a driving force is provided for the rotating shaft 13 through the rotor core 11; the rear end of the rotor core 11 is provided with a casing front cover 14; the rear end of the front cover 14 is fixedly provided with a rear cover 16; the front cover 14 and the rear cover 16 of the casing are surrounded to form a space, the space and the stator assembly 15 are in clearance for encapsulation through sealing colloid, and the sealing colloid is resin and crystal glue drops; the stator assembly 15 specifically consists of a coil winding, a stator core and wires; a bearing 17 is arranged at the position of a center hole in the rear cover 16 of the shell in an interference fit manner, and the rotating shaft 13 is fixedly inserted into an inner ring of the bearing 17; the rear end of the rear cover 16 of the machine shell is fixedly provided with a rear end assembly 18; the rear end side of the rotating shaft 13 is fixedly inserted into the coupling end at the front side of the absolute value encoder 19, and the absolute value encoder 19 provides data acquisition and monitoring of torque, speed, position and the like for the rotating shaft 13.
The rear end assembly 18 includes a rear end cap 181 fixedly mounted to the rear end of the housing rear cover 16; a partition plate 182 for separation is fixedly arranged in the rear end cover 181, and the partition plate 182 divides the front end cavity of the rear end cover 181 into a front cavity and a rear cavity; a rubber ring 183 for sealing and damping is adhered and fixed on the outer ring side of the partition plate 182, and the rubber ring 183 provides the installation and damping effect for the partition plate 182; a control PCB 184 for controlling the effect is mounted on the rear end bolt of the partition 182, and the control PCB 184 is integrally mounted with the absolute value encoder 19; the rear end bolt of the partition 182 is provided with an acquisition PCB 185 for acquiring data, the acquisition PCB 185 is respectively fixed with an acceleration sensor, a gyroscope sensor, a gravity sensor, a positioner and a pressure sensor through soldering tin, and the pressure sensor is fixedly arranged with the cylinder body of the pressure cylinder 186; a humidity sensor is arranged in the cavity at the rear end of the partition 182; a pressure cylinder 186 for detection is slidably arranged at the through hole in the center of the partition 182; the rear end cap 181 is internally provided with a compensating assembly 187.
The rear end cover 181 is connected with the rear cover 16 of the shell through a static sealing structure, a hollow steel is arranged at the center of a groove at the front end of the rear end cover 181, and a pressure cylinder 186 is welded and fixed at the front end of the hollow steel; the stator assembly 15 is directly connected to the control PCB 184 from the back of the back cover of the cabinet through three-phase outgoing lines.
The working principle of the underwater axial flux motor with position feedback based on the first embodiment is as follows:
firstly, when the equipment is used, the equipment is firstly placed in a working area, and then the device is connected with an external power supply, so that a power supply required by the work of the equipment can be provided;
secondly, when the motor body 1 is driven underwater, the motor body is connected with a control terminal through a annunciator on the control PCB 184 at the moment, and the control PCB 184 provides electric energy for a coil winding in the stator assembly 15, so that magnetic field induction between the stator assembly 15 and the magnetic steel 12 drives the rotor core 11 and the rotating shaft 13 to rotate; here, the direction of the current input to the stator assembly 15 is controlled by the control PCB board 184 to change the direction of the magnetic field between the stator assembly 15 and the rotor core 11; in the rotating process of the rotating shaft 13, the absolute position of the rotating shaft is monitored in real time through an absolute value encoder 19 fixed at the tail end of the rear side of the rotating shaft 13, monitoring data is transmitted to a control terminal through a control PCB 184, and therefore the accurate monitoring of the absolute position of the rotating shaft 13 and further accurate control are achieved;
thirdly, when the motor body 1 is submerged into water, the transverse state of the underwater motor body 1 and the offset influence of tides are obtained through collecting an acceleration sensor, a gyroscope sensor and a gravity sensor on the PCB 185, the signals are transmitted by a annunciator on the control PCB 184 and a control terminal, and meanwhile, a separation space at the joint of the rear end cover 181 and the shell rear cover 16 can be detected through a humidity sensor arranged at the rear end of the partition plate 182, so that the sealing performance of a static sealing structure between the rear end cover 181 and the shell rear cover 16 is detected; at this time, the central hole at the rear end of the rear end cover 181 generates pressure due to water inflow, and at this time, the water pressure pushes the piston rod of the pressure cylinder 186 to displace, so that the pressure sensor at the side surface of the pressure cylinder 186 senses data for the pressure generated by the pressure of the pressure cylinder 186 being pushed by the water pressure, and thus senses the underwater pressure value of the motor body 1.
Embodiment two:
referring to fig. 1 to 8, in an underwater belt position feedback axial flux motor of the present invention, compared with the first embodiment, the present embodiment further includes: a compensation component 187; the compensating assembly 187 includes heating laminates 1871 mounted on left and right sides of the front end of the rear end cap 181 by bolts, and provides a heat dissipation effect for the heating laminates 1871 by using the rear end cap 181 and water flow outside thereof; the heating layer plate 1871 is mounted at the rear end of the first fan-shaped box 1872 through bolts, and the heating layer plate 1871 is used for providing a heating effect for the interior of the first fan-shaped box 1872; an arc-shaped air cylinder 1873 for adjustment is welded and fixed on the upper side and the lower side of the first fan-shaped box 1872, and air pressure in the first fan-shaped box 1872 pushes a piston rod in the arc-shaped air cylinder 1873 to displace; the arc piston rod of the arc cylinder 1873 is fixedly arranged with a plate body in the second fan-shaped box 1874, high-thermal expansion gas is arranged in the first fan-shaped box 1872, and the first fan-shaped box 1872 and the second fan-shaped box 1874 are fan-shaped square boxes with openings of 60 degrees; the second fan-shaped box 1874 is fixedly arranged on the upper side and the lower side of the front end of the rear end cover 181, and the micro valves 1875 are arranged on the left side and the right side of the second fan-shaped box 1874 in a pipeline manner, and the micro valves 1875 provide an airflow guiding effect for the second fan-shaped box 1874; the micro valve 1875 at the left end of the second fan-shaped box 1874 is arranged with an air hole pipeline of the micro air pump 1876; the micro valve 1875 at the right end of the second fan-shaped box 1874 is connected with the connecting pipe 1877 in a pipeline manner, and the connecting pipe 1877 is utilized to provide a flow dividing effect for the air flow in the micro valve 1875.
A heating wire for heating is arranged inside the heating laminate 1871, and is electrically connected with the control PCB 184 to supply electric energy to the heating laminate 1871; the left and right sides of the interior of the second fan-shaped casing 1874 are slidably provided with piston plates, and the arcuate cylinders 1873 provide a pushing effect for the piston plates.
The baffle 182 at the rear end of the rear cover 16 of the machine shell sets the front space of the rear end cover 181 as a front cavity and a rear cavity, and the connecting pipe 1877 connected with the right end of the micro valve 1875 is respectively communicated with the front cavity and the rear cavity of the baffle 182; the left air hole of the miniature air pump 1876 is provided with a connecting pipe for connecting the cavities at the two sides of the front end of the rear end cover 181.
In this embodiment:
when the pressure sensor at the side of the pressure cylinder 186 detects that the water pressure difference is large, the high-pressure air flow in the second fan-shaped box 1874 can flow out to the front and rear cavities in the rear end cover 181 for pressure compensation by controlling the start and stop of the micro valve 1875 at the right side of the second fan-shaped box 1874; meanwhile, current can be controlled to enter the heating laminate 1871 to heat the first fan-shaped box 1872, at the moment, high-thermal expansion gas in the first fan-shaped box 1872 expands to increase the internal air pressure, and when the internal air pressure of the first fan-shaped box 1872 increases, the piston rods in the arc-shaped cylinders 1873 on two sides of the first fan-shaped box 1872 are pushed to displace, so that the piston rods of the arc-shaped cylinders 1873 push the plate bodies on two sides of the second fan-shaped box 1874 to displace, and at the moment, high-pressure air in the second fan-shaped box 1874 can accelerate to flow out after being depressurized to quickly compensate lower pressure values in the rear end cover 181.
The invention provides an underwater axial flux motor with position feedback through improvement, and by adopting an axial flux distribution structure of the magnetic steel 12, the casing front cover 14, the stator assembly 15 and other parts, space is saved and efficiently utilized, so that the problem of larger size of a conventional motor is reduced, the application effect of the motor on other equipment is improved, an absolute value encoder 19 is utilized for providing feedback of the rotating absolute position for a rotating shaft 13, meanwhile, a potting material is adopted for potting protection of the stator assembly 15, and a casing rear cover 16 adopts a static sealing structure and a humidity sensor for detecting the sealing performance of the static sealing structure in real time, so that the waterproof performance is improved; the motor body 1 under water is provided with underwater position feedback and offset phenomenon generated by water flow and vibration when the motor works through the separate work control and collection work of the control PCB 184 and the collection PCB 185.
The basic principle and main characteristics of the invention and the advantages of the invention are shown and described above, standard parts used by the invention can be purchased from market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of the parts adopt conventional means such as mature bolt rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the description is omitted.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. An underwater axial flux motor with position feedback comprises a motor body (1);
the method is characterized in that: the motor body (1) comprises a rotor core (11); a magnetic steel (12) for electromagnetic sensing is fixed in the inner groove of the rotor core (11); a rotating shaft (13) is fixedly arranged at the circular through hole of the rotor core (11); a shell front cover (14) is arranged at the rear end of the rotor core (11); the rear end of the shell front cover (14) is fixedly provided with a shell rear cover (16), the shell front cover (14) and the shell rear cover (16) are surrounded to form a space, and a stator assembly (15) is arranged in the space; a bearing (17) is arranged at the position of the center hole in the rear cover (16) of the shell in an interference fit manner; the rear end of the shell rear cover (16) is fixedly provided with a rear end assembly (18); the rear end side of the rotating shaft (13) is fixedly spliced with the coupling end at the front side of the absolute value encoder (19);
the rear end assembly (18) comprises a rear end cover (181) which is installed on the rear side plane of the rear cover (16) of the machine shell through a sealing ring in a static sealing way; a partition board (182) for separating is fixedly arranged in the rear end cover (181); a rubber ring (183) for sealing and damping is adhered and fixed on the outer ring side of the partition plate (182); a control PCB (184) for controlling the action is arranged at the rear end of the partition plate (182) through bolts, and the control PCB (184) is integrally arranged with the absolute value encoder (19); the rear end bolt of the partition plate (182) is provided with an acquisition PCB (185) for acquiring data; a pressure cylinder (186) for detection is slidably arranged at the through hole in the center of the partition plate (182); a compensation component (187) is arranged in the rear end cover (181);
the compensation component (187) comprises heating laminates (1871) which are arranged on the left side and the right side of the front end of the rear end cover (181) through bolts; the heating laminate (1871) is mounted at the rear end of the first fan-shaped box body (1872) through bolts; arc-shaped air cylinders (1873) for adjustment are fixedly welded on the upper side and the lower side of the first fan-shaped box body (1872); an arc piston rod of the arc-shaped air cylinder (1873) is fixedly arranged with a plate body in the second fan-shaped box body (1874); the second fan-shaped box body (1874) is fixedly arranged on the upper side and the lower side of the front end of the rear end cover (181), and the pipelines on the left side and the right side of the second fan-shaped box body (1874) are provided with micro valves (1875); the micro valve (1875) at the left end of the second fan-shaped box body (1874) is arranged with an air hole pipeline of the micro air pump (1876); the micro valve (1875) at the right end of the second fan-shaped box body (1874) is connected with the connecting pipe (1877) through a pipeline;
an electric heating wire for heating is arranged in the heating laminate (1871), and is electrically connected with the control PCB (184); piston plates are slidably arranged on the left side and the right side of the inside of the second fan-shaped box body (1874);
a partition plate (182) at the rear end of the rear cover (16) of the machine shell sets the front end space of the rear end cover (181) as a front cavity and a rear cavity, and a connecting pipe (1877) connected with the right end of the micro valve (1875) is communicated with the front cavity and the rear cavity of the partition plate (182) respectively; the left air hole of the miniature air pump (1876) is provided with a connecting pipe for connecting the cavities at the two sides of the front end of the rear end cover (181).
2. An axial flux machine with position feedback for underwater belts as in claim 1, wherein: the surrounding space formed by the front cover (14) and the rear cover (16) of the machine shell is encapsulated with the gap of the stator assembly (15) through a sealing colloid, wherein the sealing colloid is resin or crystal glue drops; the stator assembly (15) is specifically composed of a coil winding, a stator core and wires.
3. An axial flux machine with position feedback for underwater belts as in claim 2, wherein: the rear end cover (181) is connected with the rear cover (16) of the shell through a static sealing structure, a hollow steel is arranged at the center of a groove at the front end of the rear end cover (181), and a pressure cylinder (186) is welded and fixed at the front end of the hollow steel; the stator assembly (15) is directly connected with the control PCB (184) from the back of the rear cover of the machine shell through three-phase outgoing lines.
4. An axial flux machine with position feedback for underwater belts as in claim 3, wherein: an acceleration sensor, a gyroscope sensor, a gravity sensor, a positioner and a pressure sensor are respectively fixed on the acquisition PCB (185) through soldering tin, and the pressure sensor is fixedly arranged with a cylinder body of a pressure cylinder (186); a humidity sensor is arranged in the cavity at the rear end of the partition plate (182).
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