CN117650666A - Brushless direct current electric mechanism for rudder - Google Patents
Brushless direct current electric mechanism for rudder Download PDFInfo
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- CN117650666A CN117650666A CN202311826207.XA CN202311826207A CN117650666A CN 117650666 A CN117650666 A CN 117650666A CN 202311826207 A CN202311826207 A CN 202311826207A CN 117650666 A CN117650666 A CN 117650666A
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- 238000004804 winding Methods 0.000 claims description 20
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- 230000001070 adhesive effect Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
- H02K7/1021—Magnetically influenced friction brakes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
- H02K3/487—Slot-closing devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- 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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/04—Balancing means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The application provides a brushless direct current electric mechanism for rudder belongs to direct current electric mechanism technical field, including motor assembly, be used for carrying out the electromagnetic braking ware that brakes to motor assembly, set up the stopper adjustment gasket between motor assembly and electromagnetic braking ware, with electromagnetic braking ware complex stopper rotor key, be used for carrying out fixed interior hexagonal socket head screw and the first hexagonal thin nut to electromagnetic braking ware. The brushless direct current electric mechanism for the rudder has the advantages of compact structure, smaller diameter, compact structure and reliable strength, can be widely applied to unmanned aerial vehicles, missiles, ships and high-end civil equipment, and has considerable market prospect and popularization value.
Description
Technical Field
The application belongs to the technical field of direct current electric mechanisms, and particularly relates to a brushless direct current electric mechanism for a rudder.
Background
The brushless direct current motor is used for missile steering engines, is a driving motor for driving steering surfaces of various missile system steering engines to rotate, has a braking function in a limited space, and is required to meet the requirement of low starting voltage. Along with the rapid development of the air-to-air missile industry, the electric steering engine for the missiles is widely applied, the requirements on the axial length of a motor are shorter and shorter for improving the range of the missiles, and the electric steering engine for the missiles has low-voltage starting capability.
Disclosure of Invention
The utility model aims to provide a brushless direct current electric mechanism with low starting voltage and braking for steering engine, which solves the problem that the small diameter steering engine in the prior art can not consider motor performance and braking moment due to space and performance limitation.
In order to achieve the above purpose, the present application provides a brushless direct current electric mechanism for rudder, which comprises a motor assembly, an electromagnetic brake for braking the motor assembly, a brake adjusting gasket arranged between the motor assembly and the electromagnetic brake, a brake rotor key matched with the electromagnetic brake, a hexagon socket head cap screw for fixing the electromagnetic brake and a first hexagon thin nut.
The brushless direct current electric mechanism for the rudder further has the characteristics that the electromagnetic brake comprises a brake winding matched with a brake rotor key, a brake base used for fixing the brake winding, a fixed plate contacted with a brake adjusting gasket, an armature arranged between the brake base and the fixed plate, a spring used for ensuring that the armature is stressed to be clung to a brake disc and the brake disc used for being matched with the armature to brake.
The brushless direct current electric mechanism for the rudder further has the characteristic that the brake base and the fixed plate are fixed through the first slotted countersunk head screw and the second hexagonal thin nut.
The brushless direct current electric mechanism for the rudder, provided by the application, further has the characteristics that the motor assembly comprises a shell part, a rotor part, a sensor rotor part and a sensor rotor key, a first bearing, a second bearing, a circuit board, a gasket, a protective sleeve, a motor front cover and an elastic retainer ring, wherein the rotor part is arranged in the shell part and matched with a brake rotor key, the first bearing and the second bearing are used for fixing the rotor part at a motor axis, the circuit board is arranged on the upper end and the lower end of the circuit board, the gasket and the lower circuit board are arranged on the circuit board, the motor front cover is fixed with the shell part and used for guaranteeing motor assembly, the protective sleeve is arranged on the outer side of the shell part, and the axial pretightening force of the rotor part is guaranteed through an adjusting gasket, a corrugated spring and an elastic retainer ring for a hole.
The brushless direct current electric mechanism for the rudder provided by the application is further characterized in that the motor front cover is fixed with the shell part through a second slotted countersunk head screw, anaerobic adhesive is coated at the thread of the second slotted countersunk head screw, and insulating paint is sprayed on the inner end face of the motor front cover.
The brushless direct current electric mechanism for the rudder further has the characteristic that the motor shaft elongation tolerance is 0-0.05mm, and an adjusting gasket for adjusting the relative position of the second bearing and the motor front cover is arranged in a bearing chamber of the motor front cover.
The brushless direct current electric mechanism for the rudder, which is provided by the application, further has the characteristics that the shell part comprises a shell, a shell rear cover in transition fit with the shell, a key and a stator unit, wherein the key and the stator unit are arranged in the shell, the shell rear cover is welded and fixed with the shell, and a semi-cylindrical positioning hole for guaranteeing the assembly position of a motor is formed in the butt joint end part of the shell rear cover and the shell.
The brushless direct current electric mechanism for the rudder further has the characteristics that the stator unit comprises a stator core, a slot wedge and a stator winding, wherein the end face of the stator core is bonded with a stator end piece, and an insulating film is arranged between the stator winding and the shell.
The brushless direct current electric mechanism for the rudder further has the characteristics that the rotor part comprises a rotating shaft unit, a front dynamic balance ring, a rotor sheath and a rear dynamic balance ring, wherein the front dynamic balance ring is made of brass and is screwed onto the rotating shaft unit through anaerobic adhesive coating; the rear dynamic balance ring is made of stainless steel, and is welded to the rotating shaft unit through a cross slotted hole on the rear dynamic balance ring after being glued to the rotating shaft unit.
The brushless direct current electric mechanism for rudder that this application provided still has such characteristic, pivot unit includes axle, rotor core, N magnet steel, S magnet steel and rotor key, rotor core is equipped with four key notch, changes the key notch in proper order through the rotor key and installs four sections rotor core on the axle, and the rotor is arranged along the circumferencial direction segmentation.
Advantageous effects
The brushless direct current electric mechanism for the rudder has the advantages of compact structure, smaller diameter, compact structure and reliable strength, can be widely applied to unmanned aerial vehicles, missiles, ships and high-end civil equipment, and has considerable market prospect and popularization value.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of an electric mechanism according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a motor assembly according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a housing portion according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a stator unit according to an embodiment of the present disclosure;
fig. 5 is a schematic structural view of a rotor portion according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a spindle unit according to an embodiment of the present disclosure;
FIG. 7 is a schematic diagram of an electromagnetic brake according to an embodiment of the present application,
wherein, 1, a first hexagonal thin nut; 2. a brake rotor key; 3. an electromagnetic brake; 3-1, a first slotted countersunk head screw; 3-2, a brake winding; 3-3, a brake base; 3-4, a spring; 3-5, armature; 3-6, fixing plate; 3-7, a brake disc; 3-8, a second hexagonal thin nut; 4. a brake adjustment shim; 5. a motor assembly; 5-1, sensor rotor keys; 5-2, protecting jacket; 5-3, a shell part; 5-3-1, a shell back cover; 5-3-2, a shell; 5-3-3, bond; 5-3-4, stator unit; 5-3-4-1, stator core; 5-3-4-2, slot wedge; 5-3-4-3, windings; 5-4, a rotor part; 5-4-1, a rotating shaft unit; 5-4-1-1, shaft; 5-4-1-2, rotor core; 5-4-1-3, N magnetic steel; 5-4-1-4, S magnetic steel; 5-4-1-5, rotor key; 5-4-2, a front dynamic balance ring; 5-4-3, rotor sheath; 5-4-4, a rear dynamic balance ring; 5-5, grooving pan head screws; 5-6, a gasket on the circuit board; 5-7, a sensor rotor part; 5-8, circlips for holes A; 5-9, a ripple spring; 5-10, adjusting a gasket; 5-11, a first bearing; 5-12, a second slotted countersunk head screw; 5-13, a motor front cover; 5-14, a second bearing; 5-15, a circuit board; 5-16, a circuit board lower gasket; 6. hexagon socket head cap screw.
Detailed Description
The present application is further described in detail below with reference to the drawings and examples, but it should be understood that these embodiments are not limited to the present application, and functional, method, or structural equivalents and alternatives according to these embodiments are within the scope of protection of the present application by those skilled in the art.
In the description of the embodiments of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and to simplify 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 therefore should not be construed as limiting the invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description created in this application, unless otherwise indicated, the meaning of "a plurality" is two or more.
The terms "mounted," "connected," "coupled," and "connected" 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 terms in the creation of this application may be understood by those of ordinary skill in the art by specific circumstances.
As shown in fig. 1 to 7, there is provided a brushless dc motor for rudder, comprising a motor assembly 5, an electromagnetic brake 3 for braking the motor assembly 5, a brake adjustment pad 4 provided between the motor assembly 5 and the electromagnetic brake 3, a brake rotor key 2 engaged with the electromagnetic brake 3, an inner hexagonal socket head cap screw 6 for fixing the electromagnetic brake 3, and a first hexagonal thin nut 1.
In the above embodiment, the brake adjusting pad 4 is arranged between the electromagnetic brake 3 and the motor assembly 5, so that the motor shaft can drive the brake disc 3-7 to rotate in the power-on unlocking state, and the brake disc 3-7 is blocked by the armature and cannot rotate freely in the circumference in the power-off state, thereby realizing the braking function. The electromagnetic brake 3 can adjust the assembly position of the brake armature 3-5 and the motor shaft by adjusting the brake gasket 4, so that the brake disc 3-7 can rotate along with the shaft at any angle after the electromagnetic brake 3 is unlocked and is not blocked by the armature 3-5.
In some embodiments, the electromagnetic brake 3 includes a brake winding 3-2 engaged with the brake rotor key 2, a brake base 3-3 for fixing the brake winding 3-2, a fixed plate 3-6 in contact with the brake adjusting pad 4, an armature 3-5 disposed between the brake base 3-3 and the fixed plate 3-6, a spring 3-4 for ensuring that the armature 3-5 is forced against the brake disc 3-7, and a brake disc 3-7 for braking in cooperation with the armature 3-5.
In some embodiments, the brake base 3-3 and the fixed plate 3-6 are fixed by a first slotted countersunk head screw 3-1 and a second hexagonal thin nut 3-8.
In the above embodiment, the brake base 3-3 and the fixed plate 3-6 are fixed by coating anaerobic adhesive through the first slotted countersunk head screw 3-1, the armature 3-5 is placed between the brake base 3-3 and the fixed plate 3-6, and the armature 3-5 is guaranteed to be stressed and clung to the brake disc 3-7 through the compression spring 3-4. The brake disc 3-7 is clamped by the bulge of the armature 3-5 and cannot rotate freely, so that a braking function is realized. When the brake winding 3-2 is electrified, a magnetic field is formed to attract the armature 3-5 to further compress the spring 3-4, and the armature 3-5 is stressed to be clung to the brake base 3-3. The bulge of the armature 3-5 is not in the same plane with the brake disc 3-7, the brake disc 3-7 is not blocked by the armature 3-5, and the brake disc can freely rotate to realize the unlocking function.
In some embodiments, the motor assembly 5 includes a housing part 5-3, a rotor part 5-4 disposed in the housing part 5-3 and engaged with the brake rotor key 2, a sensor rotor part 5-7 and a sensor rotor key 5-1 engaged with each other, a first bearing 5-11 and a second bearing 5-14 for fixing the rotor part 5-4 at the motor axis, a circuit board 5-15, upper circuit board gaskets 5-6 and lower circuit board gaskets 5-16 disposed at upper and lower ends of the circuit board 5-15, a motor front cover 5-13 fixed with the housing part 5-3 for securing assembly of the motor, and a protection sleeve 5-2 disposed outside the housing part 5-3, wherein the first bearing 5-11 and the housing part 5-3 secure axial pre-tightening force of the rotor part 5-4 by adjusting the gaskets 5-10, the bellows springs 5-9 and the a-type hole circlips 5-8, thereby preventing the rotor part 5-4 from axially moving with the motor.
In some embodiments, the motor front cover 5-13 is fixed with the shell 5-3 through a second slotted countersunk head screw 5-12, an anaerobic adhesive is coated at the thread of the second slotted countersunk head screw 5-12, and an insulating paint is sprayed on the inner end surface of the motor front cover 5-13. The motor front cover 5-13 is fixed with the shell part 5-3 by coating anaerobic adhesive at the thread of the second slotted countersunk head screw 5-12, so that the screw is prevented from being loosened by vibration and impact, the motor front cover 5-13 is prevented from falling off, and the assembly strength of the motor is ensured. Meanwhile, the motor has maintainability, when the internal structure of the motor is damaged, the grooved countersunk head screw is heated at a local high temperature, so that the anaerobic adhesive is heated to fail, the grooved countersunk head screw is disassembled to maintain or replace the internal structure of the motor, the insulating adhesive sprayed on the inner end surfaces of the maintainability motor front cover 5-13 of the motor is guaranteed to be TH06-27 universal standard primer, and the insulativity between the motor front cover and a stator winding is guaranteed.
In some embodiments, the motor shaft elongation tolerance is 0-0.05mm, and the bearing chamber of the motor front cover 5-13 is provided with an adjusting gasket 5-10 for adjusting the relative position of the second bearing 5-14 and the motor front cover 5-13.
In some embodiments, the housing part 5-3 includes a housing 5-3-2, a housing rear cover 5-3-1 in transition fit with the housing 5-3-2, a key 5-3-3 disposed in the housing 5-3-2, and a stator unit 5-3-4, wherein the housing rear cover 5-3-1 is welded to the housing 5-3-2, and a semi-cylindrical positioning hole for ensuring the assembly position of the motor is formed at the butt end of the housing rear cover 5-3-1 and the housing 5-3-2. The seam allowance fit size between the shell back cover 5-3-1 and the shell 5-3-2 is in transition fit, and is fixed through laser welding, so that the structural strength of the shell back cover 5-3-1 is ensured. The butt joint end of the shell back cover 5-3-1 and the shell 5-3-2 is provided with a semi-cylindrical positioning hole, so that the assembly position of the motor is ensured to be consistent.
In some embodiments, the stator unit 5-3-4 includes a stator core 5-3-4-1, a slot wedge 5-3-4-2, and a stator winding 5-3-4-3, wherein an end surface of the stator core 5-3-4-1 is bonded to a stator end piece, and an insulating film is disposed between the stator winding 5-3-4-3 and the housing 5-3-2. After the stator core 5-3-4-1 is laminated by a plurality of stator punching sheets, the two ends are adhered with the stator end sheets, so that the insulation of the stator winding 5-3-4-3 is prevented from rubbing the metal sharp edges of the punching sheets by the insulating layers of the enameled wires in the winding process, the leakage phenomenon caused by the breakage of the insulating layers of the enameled wires is caused, and the insulativity of the shell part 5-3 is ensured. The insulating film arranged between the stator winding 5-3-4-3 and the shell 5-3-2 in the stator unit is polyimide film 6050, so that the insulativity between the stator winding 5-3-4-3 and the shell 5-3-2 is ensured.
In some embodiments, the rotor portion 5-4 includes a shaft unit 5-4-1, a front dynamic balance ring 5-4-2, a rotor sheath 5-4-3, and a rear dynamic balance ring 5-4-4, where the front dynamic balance ring 5-4-2 is made of brass and is screwed to the shaft unit 5-4-1 by coating anaerobic adhesive; the rear dynamic balance ring 5-4-4 is made of stainless steel, is welded to the rotating shaft unit 5-4-1 element through a cross slotted hole on the rear dynamic balance ring 5-4-4 after being glued to the rotating shaft unit 5-4-1, ensures the structural strength of the rotor part 5-4, and prevents magnetic steel from being thrown out together with the rotor sheath 5-4-3.
In some embodiments, the rotating shaft unit 5-4-1 includes a shaft 5-4-1-1, a rotor core 5-4-1-2, N magnetic steel 5-4-1-3, S magnetic steel 5-4-1-4 and a rotor key 5-4-1-5, the rotor core 5-4-1-2 is provided with four key slots, the four sections of rotor cores 5-4-1-2 are mounted on the shaft by sequentially replacing the key slots with the rotor keys 5-4-1-5, and the rotors are arranged in sections along the circumferential direction, so that a certain angle is generated in the stress direction of each section of rotor, the stress of the rotors can be mutually offset after four sections of integration, the moment required for starting is reduced, and the starting voltage of motor teeth is reduced.
The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application. The foregoing is merely a preferred embodiment of the present application, and it should be noted that, for a person skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (10)
1. The brushless direct current electric mechanism for the rudder is characterized by comprising a motor assembly (5), an electromagnetic brake (3) for braking the motor assembly (5), a brake adjusting gasket (4) arranged between the motor assembly (5) and the electromagnetic brake (3), a brake rotor key (2) matched with the electromagnetic brake (3), an inner hexagonal socket head cap screw (6) for fixing the electromagnetic brake (3) and a first hexagonal thin nut (1).
2. The brushless direct current electric mechanism for rudder according to claim 1, characterized in that the electromagnetic brake (3) includes a brake winding (3-2) that cooperates with the brake rotor key (2), a brake base (3-3) for fixing the brake winding (3-2), a fixed plate (3-6) that contacts the brake adjusting pad (4), an armature (3-5) that is provided between the brake base (3-3) and the fixed plate (3-6), a brake disc (3-7) that cooperates with the armature (3-5) for braking, and a spring (3-4) that ensures that the armature (3-5) is forced against the brake disc (3-7).
3. The brushless direct current electric mechanism for rudders according to claim 1, characterized in that the brake base (3-3) and the fixed plate (3-6) are fixed by a first slotted countersunk head screw (3-1) and a second hexagonal thin nut (3-8).
4. The brushless dc motor for rudder according to claim 1, wherein the motor assembly (5) comprises a housing part (5-3), a rotor part (5-4) provided in the housing part (5-3) to be fitted with a brake rotor key (2), a sensor rotor part (5-7) and a sensor rotor key (5-1) to be fitted, a first bearing (5-11) and a second bearing (5-14) for fixing the rotor part (5-4) at a motor axis, a circuit board (5-15), upper circuit board pads (5-6) and lower circuit board pads (5-16) provided at upper and lower ends of the circuit board (5-15), a motor front cover (5-13) fixed with the housing part (5-3) for securing motor assembly, and a cover (5-2) provided outside the housing part (5-3),
the first bearing (5-11) and the shell part (5-3) ensure the axial pretightening force of the rotor part (5-4) through the adjusting gasket (5-10), the corrugated spring (5-9) and the elastic retainer ring (5-8) for the A-shaped hole.
5. The brushless direct current electric mechanism for rudders according to claim 4, characterized in that the motor front cover (5-13) is fixed with the shell part (5-3) through a second slotted countersunk head screw (5-12), anaerobic adhesive is coated at the thread of the second slotted countersunk head screw (5-12), and insulating paint is coated on the inner end face of the motor front cover (5-13).
6. The brushless direct current electric mechanism for rudder according to claim 4, wherein the motor shaft elongation tolerance is 0-0.05mm, and an adjusting spacer (5-10) for adjusting the relative position of the second bearing (5-14) and the motor front cover (5-13) is provided in the bearing chamber of the motor front cover (5-13).
7. The brushless dc motor for rudder according to claim 4, wherein the housing part (5-3) comprises a housing (5-3-2), a housing back cover (5-3-1) that is transition fitted with the housing (5-3-2), a key (5-3-3) provided in the housing (5-3-2), and a stator unit (5-3-4),
the motor is characterized in that the shell back cover (5-3-1) is welded and fixed with the shell (5-3-2), and a semi-cylindrical positioning hole for guaranteeing the assembly position of the motor is formed at the butt joint end part of the shell back cover (5-3-1) and the shell (5-3-2).
8. The brushless direct current electric machine for rudders according to claim 7, characterized in that the stator unit (5-3-4) comprises a stator core (5-3-4-1), a slot wedge (5-3-4-2) and a stator winding (5-3-4-3), an end face of the stator core (5-3-4-1) is bonded with a stator end piece, and an insulating film is placed between the stator winding (5-3-4-3) and the housing (5-3-2).
9. The brushless dc motor for rudder according to claim 4, wherein the rotor portion (5-4) includes a rotation shaft unit (5-4-1), a front dynamic balance ring (5-4-2), a rotor sheath (5-4-3) and a rear dynamic balance ring (5-4-4),
the front dynamic balance ring (5-4-2) is made of brass and is screwed on the rotating shaft unit (5-4-1) by coating anaerobic adhesive;
the rear dynamic balance ring (5-4-4) is made of stainless steel, is glued to the rotating shaft unit (5-4-1) and is welded to the rotating shaft unit (5-4-1) through a cross slotted hole on the rear dynamic balance ring.
10. The brushless dc motor for rudder according to claim 9, wherein the rotation shaft unit (5-4-1) includes a shaft (5-4-1-1), a rotor core (5-4-1-2), N magnetic steel (5-4-1-3), S magnetic steel (5-4-1-4) and a rotor key (5-4-1-5),
the rotor core (5-4-1-2) is provided with four key slots, the four sections of rotor cores (5-4-1-2) are arranged on the shaft (5-4-1-1) through the sequential replacement of the key slots of the rotor keys (5-4-1-5), and the rotors are distributed in sections along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311826207.XA CN117650666A (en) | 2023-12-27 | 2023-12-27 | Brushless direct current electric mechanism for rudder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311826207.XA CN117650666A (en) | 2023-12-27 | 2023-12-27 | Brushless direct current electric mechanism for rudder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117650666A true CN117650666A (en) | 2024-03-05 |
Family
ID=90045196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311826207.XA Pending CN117650666A (en) | 2023-12-27 | 2023-12-27 | Brushless direct current electric mechanism for rudder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117650666A (en) |
-
2023
- 2023-12-27 CN CN202311826207.XA patent/CN117650666A/en active Pending
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