CN109378958A - A kind of planetary gear type brushed DC motor - Google Patents
A kind of planetary gear type brushed DC motor Download PDFInfo
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- CN109378958A CN109378958A CN201811435841.XA CN201811435841A CN109378958A CN 109378958 A CN109378958 A CN 109378958A CN 201811435841 A CN201811435841 A CN 201811435841A CN 109378958 A CN109378958 A CN 109378958A
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- planetary gear
- motor
- rotor
- iron core
- gear type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/68—Structural association with auxiliary mechanical devices, e.g. with clutches or brakes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a kind of planetary gear type brushed DC motors, wherein the planetary gear type brushed DC motor includes: including field frame assembly, rotor assembly, output mechanism and motor housing.The present invention combines planetary reducer and brushed DC motor, so that the revolving speed of output is more in line with general need, improves the efficiency of transmission, saved resource.
Description
Technical field
The present invention relates to direct current generator fields, in particular to a kind of planetary gear type brushed DC motor.
Background technique
Brushed DC motor is a kind of direct current generator, and fixed main pole and brush are equipped on the stator of brush motor,
Armature winding and commutator are installed on rotor.The electric energy of DC power supply enters armature winding by brush and commutator, generates
Armature supply, the magnetic field and main field interaction that armature supply generates generate electromagnetic torque, make motor rotation band dynamic load.Have
Brushless motor have the advantages that structure is simple, run smoothly, starting and good braking effect and control precision it is high, be widely used
In every field.
Planetary reducer is a kind of application planetary drive principle, the transmission device engaged using gear.Planet tooth
The transmission device of wheel decelerator includes sun gear, planetary gear and gear ring, and wherein planetary gear is pivotally supported by the fixation of planet carrier, is allowed
Planetary gear rotates in support shaft, and planetary gear and sun gear, gear ring are in normal meshing state.Wherein, it is located at planetary gear
Transmission mechanism center is sun gear, and sun gear and planetary gear often engage, and it is opposite that the two external gear engages direction of rotation.Gear ring is
Internal gear, it and planetary gear engage, and direction of rotation is identical between the two.Planetary reducer is reached by the engagement between gear
Slowing effect, the number of planetary gear depend on the Design cooling load of planetary reducer, usually there are three or four, number the more undertakes
Load is bigger.The most significant feature of planetary reducer is that power dividing can be carried out when transmitting power, and input shaft
With at output shaft in the same horizontal line.So Planetary Gear Transmission has been widely used in various machine driven systems
Retarder, speed increaser and speed change gear.Especially in aircraft and vehicle due to it has the characteristics that " top load, large transmission ratio "
In widely applied.
The output revolving speed of traditional brush DC motors is often excessively high, in actual use, generally will be through planet
The requirement of revolving speed is just able to satisfy after gear reduction unit or other retarding devices, hence it is evident that the efficiency for reducing transmission also consumes more
More resources.
Summary of the invention
In order to overcome the shortcomings of that traditional brush DC motors output revolving speed is excessively high, the present invention provides a kind of planetary gears
Formula brushed DC motor, the planetary gear type brushed DC motor combine planetary reducer and brushed DC motor,
So that the revolving speed of output is more in line with general need, improves the efficiency of transmission, saved resource.
Correspondingly, the embodiment of the invention provides a kind of planetary gear type brushed DC motor, the planetary gear type has
Brushless motor includes field frame assembly, rotor assembly and output mechanism；
The field frame assembly includes multiple main poles, multiple commutating poles and multiple brushgears；The multiple main pole packet
Main pole iron core and excitation winding are included, the main pole iron core is fixed, and the excitation winding is arranged by predetermined manner in master
In pole core；The multiple commutating pole includes commutating pole iron core and commutating-pole winding, and the commutating pole iron core is fixed, institute
Commutating-pole winding is stated to be arranged in commutating pole iron core by predetermined manner；The main pole iron core inner wall and commutating pole iron core inner wall are set
It is equipped with the first flank profil；
The rotor assembly include multiple peripheries be provided with the second flank profil planetary gear and with the main pole iron core, change
The rotor core being coaxially disposed to pole iron core；The rotor core includes rotor section, and the rotor section periphery is provided with third tooth
It is wide；The multiple planetary gear is arranged between the rotor core and the main pole iron core, commutating pole iron core, and is based on institute
First flank profil of second flank profil respectively with the third flank profil of the rotor core and the main pole iron core, commutating pole iron core is stated to nibble
It closes；
The output mechanism includes the output connector with rotor core coaxial arrangement, described to export the defeated of connector
Enter end to connect with the multiple planetary gear.
Optional embodiment, the planetary gear type alternating current generator further includes motor housing；The multiple main pole iron
Core, multiple commutating pole iron cores and multiple brushgears are fixed in the motor housing, and the output end of the output connector is stretched
The motor housing out.
Optional embodiment, the rotor core further include the first rotating shaft section that the rotor section axial ends is arranged in
With the second shaft section, the first rotating shaft section is slidably matched with the motor housing, and the second shaft section and the output connect
Fitting is slidably matched.
Optional embodiment, the output connector are provided with annular bearing on the side towards the rotor core
Seat, the second shaft section cooperation is on the annular bearing seat.
Optional embodiment, the motor housing material are cast iron.
Optional embodiment, the planetary gear are provided with pin hole along axial direction, and the output mechanism further includes being respectively set
Pin shaft and output shaft in the output connector two sides, the multiple pin shaft are respectively protruding into corresponding multiple planetary gear pin holes
In, the output shaft and the output connector are coaxially disposed.
The polarity of optional embodiment, two neighboring main pole is different.
Optional embodiment, opens that there are two the circular arc along the distribution of rotor core axisymmetrical is ring-like on the rotor core
Through-hole, the rotor windings are arranged in the ring-like through-hole of the circular arc by predetermined manner.
The inner wall of optional embodiment, the circular arc annular through-hole is furnished with insulating materials；The rotor windings insulation
Circle or the conducting wire of rectangular section be coiled into.
Optional embodiment, the main pole iron core, the first flank profil of commutating pole iron core, the second flank profil of planetary gear
Third flank profil with rotor core is involute profile.
The embodiment of the invention provides a kind of planetary gear type brushed DC motor, the planetary gear type brushed DC motors
Sun gear in planetary reducer is combined with the rotor of brushed DC motor, is avoided because of the problems such as assembling, wearing production
Raw bias causes motor to break down, while its better reliability, slowing effect are more excellent；By outer gear ring in planetary reducer
Connect combination with the field frame assembly of brushed DC motor, reduces the use of components, reduces motor volume, improves
The utilization rate in space；Being directly connected to for rotor assembly and output mechanism, reduces the loss of transmission, improves the efficiency of transmission；
The setting of motor housing plays protective effect to motor internal component, extends the service life of motor.As it can be seen that the planet
Gear type brush direct current motor has the advantages that compact-sized, small in size, transmission efficiency is high and long service life.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it is clear that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the three-dimensional structure view of planetary gear type brushed DC motor in the embodiment of the present invention；
Fig. 2 is the half sectional view of planetary gear type brushed DC motor three-dimensional structure in the embodiment of the present invention；
Fig. 3 is the explosive view of planetary gear type brushed DC motor three-dimensional structure in the embodiment of the present invention；
Fig. 4 is the three-dimensional structure of planetary gear type brushed DC motor field frame assembly and motor base in the embodiment of the present invention
View；
Fig. 5 is the three-dimensional structure view of planetary gear type brushed DC motor rotor assembly in the embodiment of the present invention；
Fig. 6 is the three-dimensional structure view of planetary gear type brushed DC motor output mechanism in the embodiment of the present invention；
Fig. 7 is the three-dimensional structure view of the motor base of planetary gear type brushed DC motor in the embodiment of the present invention；
Fig. 8 is the three-dimensional structure view of the electric motor end cap of planetary gear type brushed DC motor in the embodiment of the present invention.
The embodiment of the invention provides a kind of planetary gear type brushed DC motor, the planetary gear type brushed DC motors
Sun gear in planetary reducer is combined with the rotor of brushed DC motor, is avoided because of the problems such as assembling, wearing production
Raw bias causes motor to break down, while its better reliability, slowing effect are more excellent；By outer gear ring in planetary reducer
Connect combination with the field frame assembly of brushed DC motor, reduces the use of components, reduces motor volume, improves
The utilization rate in space；Being directly connected to for rotor assembly and output mechanism, reduces the loss of transmission, improves the efficiency of transmission；
The setting of motor housing plays protective effect to motor internal component, extends the service life of motor.As it can be seen that the planet
Gear type brush direct current motor has the advantages that compact-sized, small in size, transmission efficiency is high and long service life.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is the three-dimensional structure view of planetary gear type brushed DC motor in the embodiment of the present invention, and Fig. 2 is of the invention real
The half sectional view of planetary gear type brushed DC motor three-dimensional structure in example is applied, Fig. 3 is planetary gear type in the embodiment of the present invention
The explosive view of brushed DC motor three-dimensional structure.
The embodiment of the invention provides a kind of planetary gear type brushed DC motor, the planetary gear type brushed DC motors
Including field frame assembly 1, rotor assembly 2, output mechanism 3 and motor housing 4.Specifically, field frame assembly 1 is fixed on outside the motor
In shell 4, the inside of field frame assembly 1 is arranged in rotor assembly 2, and the output mechanism 3 is cooperatively connected with rotor assembly 2；The electricity
Machine shell 4 is wrapped in field frame assembly 1, rotor assembly 2 and output mechanism 3, motor housing 4 include motor base 5 and with motor base
The electric motor end cap 6 that seat 5 is connected.
Fig. 4 is the three-dimensional structure of planetary gear type brushed DC motor field frame assembly and motor base in the embodiment of the present invention
View, the field frame assembly 1 are fixed in motor base 5, field frame assembly 1 be in planetary gear type brushed DC motor it is static not
Dynamic part.
Field frame assembly 1 includes main pole 11, commutating pole 12 and brushgear 13, and the main pole 11 and commutating pole 12 are all
It is alternately fixed on the cylindrical surface of 5 inner wall of motor base for four and by screw, the brushgear 13 passes through spiral shell
Nail is fixed in the plane of 5 inner wall of motor base.
The effect of the main pole 11 is to establish main field, including main pole iron core 111 and setting are in the main pole iron
Excitation winding (not shown) on core 111.
The effect of the commutating pole 12 is to improve the condition of commutation of direct current generator, makes not generating when motor operation harmful
Spark.The commutating pole 12 includes commutating pole iron core 121 and the commutating-pole winding being arranged in the commutating pole iron core 121 (figure
In be not shown).
In general, the main pole iron core 111 and commutating pole iron core 121 are to be washed into fanning strip closed assembly in positioning with silicon steel sheet
On muscle, positioning bar is welded on shell by supporting plate, and by upper and lower tooth support turnbuckle that core pressing is integral
At.In order to avoid superimposed lines too closely impact the observation of view, the main pole iron core of diagram of the embodiment of the present invention
111 and the components that are integrated of commutating pole iron core 121, its essence is stacked by multi-disc silicon steel sheet；With traditional stator
Structure is compared, and the silicon steel sheet of the embodiment of the present invention is different, specific contours profiles reference for the shape of different parts
Verbal description is simultaneously introduced in conjunction with the spare part profile of attached drawing.Since inventive point of the invention essentially consists in traditional stator structure
One is organically combined with the outer gear ring of conventional planetary gear retarder, to realize that structure simplifies, reduces the functions such as volume, in this hair
In bright embodiment, the basic composition of stator is similar with the composition substantially of existing structure, but utilizes the combination of different shape silicon steel sheet
Stator structure needed for forming the embodiment of the present invention, existing stator structure do not have, should be required according to embodiments of the present invention
Construction profile stator core is adjusted correspondingly.It should be noted that being based on existing technical conditions and production cost
Consider, needs to be made stator core in the form of silicon steel sheet, but under the support of specific occasion and certain material, stator core can
It is made in a manner of the single part shown in the attached drawing；Specific embodiment shows that actual conditions determine.
Specifically, being provided with the main pole trapezoidal hole 112 for placing excitation winding on the main pole iron core 111；Institute
It states excitation winding to be formed with insulated copper wire coiling, be placed in the main pole trapezoidal hole 112；Particularly, excitation winding
Connection the polarity of adjacent main pole must be made to be alternately present by the pole N, S.
Specifically, being provided with the commutating pole trapezoidal hole 122 for placing commutating-pole winding in the commutating pole iron core 121；
The commutating-pole winding is also to be formed with insulated copper wire coiling, is placed in the commutating pole trapezoidal hole 122.
Specifically, the main pole iron core 111 and 121 inwall processing of commutating pole iron core are at circumferential first tooth
Exterior feature, first flank profil refer to the flank profil on 121 internal tooth of main pole iron core 111 and commutating pole iron core.Specifically, first tooth
Exterior feature is matched with planetary gear.The internal tooth is processed by way of gear shaping.It should be noted that gear shaping be except gear hobbing with
A kind of outer common cutting tooth process using generating.Pinion cutter is equivalent to engaging for a pair of of roller gear, pinion cutter with workpiece
Reciprocating motion be gear shaping main motion, and pinion cutter and workpiece by a certain percentage circular motion made by relationship be gear shaping into
To movement.Compared to gear hobbing, gear shaping is more suitable for for processing internal tooth, and the profile accuracy of gear shaping is higher than gear hobbing.In actual production,
Optional digital control gear shaper processes the internal tooth of main pole iron core 111 and commutating pole iron core 121.
Brush dress of the brushgear 13 to introduce or draw DC voltage or DC current, in the embodiment of the present invention
It sets 13 identical as the brushgear of general brushed DC motor, is generally made of parts such as brush, brush carrier, brush holder support and brush yokes；
Brush is made of the graphite for having good conductive property with preferable wearability, is placed in brush carrier, thereon by holddown spring, makes
Brush and commutator face keep certain contact pressure when rotation；Brush carrier is fixed on brush holder support, and brush holder support is mounted on brush yoke, that
It insulate between this, brush yoke is then fixed by screws in the plane of 5 inner wall of motor base；Brush borrows copper pigtail line and brush holder support to connect
It connects, then is drawn out in the wire box of motor base 5 with conducting wire.
Fig. 5 is the three-dimensional structure view of planetary gear type brushed DC motor rotor assembly in the embodiment of the present invention, rotor
Assembly 2 is the part rotated in planetary gear type brushed DC motor.
Rotor assembly 2 includes rotor core 21, the rotor windings (not shown) being arranged on the rotor core 21
And the planetary gear 22 cooperated with rotor core 21.Specifically, being provided on the rotor core 21 for placing rotor windings
The ring-like through-hole 210 of circular arc；The effect of the rotor windings is to generate electromagnetic torque or induced electromotive force, the rotor windings by
Coil is formed by connecting according to certain rules, and divides two layers and embed in the circular arc annular through-hole 210 of rotor core 21；It should be noted that
, all must properly insulate between two layers of coil and between coil and iron core.Therefore, in embodiments of the present invention, described
The circle of coil insulation or the conducting wire of rectangular section are coiled into, and are furnished with insulating materials on the inner wall of the circular arc annular through-hole 210,
It prevents from leading to electric motor short circuit because of poor insulativity.
It should be noted that in brushed DC motor, what the excitation winding and the rotor windings flowed through is all straight
Galvanic electricity, therefore main pole excitation winding can individually can also be powered by other DC power supplies with rotor windings series, parallel；According to
The difference of main pole excitation winding electric current acquisition pattern, in embodiments of the present invention, brushed DC motor can be set as needed
For separate excitation, shunt excitation, go here and there four kinds of excitation modes of example and compound excitation one of which, specific embodiment show actual conditions determine.
Specifically, the rotor core 21 divides for coaxial first rotating shaft section 211, rotor section 212 and the second shaft section
213, the first rotating shaft section 211 is based on rolling bearing 23 and the motor base 5 cooperates, and the second shaft section 213 is based on
Rolling bearing 24 and the output mechanism 3 cooperate；The cooperation and the second shaft section 213 of first rotating shaft section 211 and motor base 5
It with the cooperation of output mechanism 3, rotate rotor core 21 can along a fixing axle always in rotary course.
Specifically, being provided with commutator 25 in the first rotating shaft section 211, the commutator 25 is equipped with brushgear, energy
External dc power supply is converted into the alternating current in rotor winding coil, keeps the direction of electromagnetic torque invariable.It needs
Bright, the commutator in the embodiment of the present invention is identical as the commutator in general brushed DC motor to be had by many
The commutator segment of dove tail-shaped lines up a cylinder, uses mica-sheet insulation therebetween, and both ends use two V-rings to clamp and constitute again；Rotor
The lead of winding center line circle head end and tail end is welded in corresponding commutator segment, and commutator 25 and rotor windings form one
It is closed winding.
Particularly, in embodiments of the present invention, the sun gear in planetary reducer is dissolved into rotor core 21.
Specifically, the third flank profil being meshed with planetary gear 22 is processed into 212 periphery of rotor section of the rotor core 21, described
Three flank profils refer to that the flank profil on rotor core external tooth, the third flank profil are preferably involute profile, rotor core 21
Rotation is transmitted to planetary gear 22 by gear-driven mode via the external tooth of rotor section 212, drives planetary gear 22 with phase
Anti- direction of rotation is rotated, and the rotational velocity of planetary gear 22 is determined by the transmission ratio between gear, is subtracted as the first order
Speed.
The planetary gear quantity of the embodiment of the present invention is 4, and the planetary gear periphery is the second flank profil, second tooth
Exterior feature refers to the flank profil on planetary gear external tooth；Planetary gear axial direction length is less than or equal to the rotor section of the rotor core 21
212 axial length.
It should be noted that middle rotor iron core section third flank profil, planetary gear flank profil and the master of the embodiment of the present invention
Pole core inner wall, commutating pole iron core inner wall the first flank profil be it is mutually matched, cooperate implementation principle and planetary gear reduction
Fast device is similar.
In order to facilitate processing, the external tooth of the rotor section 213 and planetary gear 22 all select above-mentioned digital control gear shaper to process
It is made.Specifically, the planetary gear 22 is four and is distributed in the periphery of rotor core 21 along 21 circumference of rotor core,
The pin hole 221 cooperated with output mechanism 3 is also provided on the central axis of the planetary gear 22, the pin hole 221 is round logical
Hole can be made up in production of engine lathe processing.The planetary gear 22 during rotation, also with main pole iron core
111 and commutating pole iron core 121 interior tooth engagement, the internal tooth of main pole iron core 111 and commutating pole iron core 121 nibbles with planetary gear 22
It is combined into second level deceleration, revolving speed of the planetary gear 22 after double reduction is transmitted to the external world by the output mechanism 3.
It should be noted that the embodiment of the present invention is by the rotor of sun gear in planetary reducer and brushed DC motor
It combines, compared with existing retarder motor combination equipment, on the one hand, existing retarder and motor are if necessary to keep same
Axis connection needs very high assembly precision, and compared with assembly precision, machining accuracy is easier to carry out controlling in an implementation；It is another
Aspect, in long-time service, the discrete setting of retarder and motor can generate loosening in use, be easy to produce not coaxial phenomenon,
Lead to problems such as noise of equipment increase, transmission efficiency reduction, therefore, sun gear mechanism and the rotor of planetary reducer are added
Work is conducive to increase on the same axis the service life of motor, has good practicability.
Fig. 6 is the three-dimensional structure view of planetary gear type brushed DC motor output mechanism in the embodiment of the present invention, output
Mechanism 3 is the part exported in planetary gear type brushed DC motor.The output mechanism includes output connector 31, pin shaft 32
With output shaft 33.Specifically, the 31 1 lateral edge circumference of output connector is uniformly fixed there are four pin shaft 32, described four
And size corresponding with four planetary gears 22 is equal with the pin hole of planetary gear 22 respectively for pin shaft 32, and the pin shaft 32 is protected always
It holds in planetary gear 22；Specifically, the output shaft 32 is coaxially attached to the other side of the output connector 31 simultaneously
The electric motor end cap 6 is stretched out, the output shaft is based on rolling bearing 34 and cooperates in the electric motor end cap 6；Specifically, described defeated
The medium position of connector 31 is provided with annular bearing seat 311 out, and the outer ring of the rolling bearing 24 is fixed on annular bearing seat
In 311 inner walls；Specifically, one end that the output shaft 33 stretches out electric motor end cap 6 is provided with keyway 331, convenient for being connected by key
Mode output shaft and other assemblies are attached.
The motor housing 4 includes motor base 5 and the electric motor end cap 6 being connected with motor base, and Fig. 7 is of the invention real
The three-dimensional structure view of the motor base of planetary gear type brushed DC motor in example is applied, Fig. 8 is planet in the embodiment of the present invention
The three-dimensional structure view of the electric motor end cap of gear type brushed DC motor.
As shown in fig. 7, including wire box 51, motor main casing 52 and motor positioning seat 53, the line on the motor base 5
Box 51 is arranged on motor main casing 52, and motor positioning seat 53 is arranged below motor main casing 52.Specifically, the wire box 51
On be provided with wire box ear 511, facilitate the open and close of wire box；Specifically, being provided with shell peace on the motor main casing 52
Through-hole 521 and main casing heat dissipation straight trough type hole 522 are filled, the shell installation through-hole 521 is four and is symmetrically distributed in motor master
Shell 52 is distributed in motor main casing 52 close to rotor close to the side of electric motor end cap 6, the main casing heat dissipation straight trough type hole 522
It the side of assembly 2 and radiates to rotor assembly 2；Specifically, the rotor core 21 in rotor assembly 2 is based on rolling bearing 24
Cooperate with motor main casing 52；Specifically, be provided with positioning through hole 531 on motor positioning seat 53, facilitate motor by bolt or
The structures such as screw or pin or rivet are connected and fixed.
As shown in figure 8, being provided with electric motor end cap installation through-hole 61 and electric motor end cap heat sink strip hole 62 on the electric motor end cap 6
With bearing with end cover hole location 63；Specifically, the electric motor end cap installation through-hole 61 be four and with 521 phase of shell installation through-hole
It is corresponding, it is convenient that electric motor end cap 6 is fastened on motor base 5 by screw；Specifically, 62 He of electric motor end cap heat sink strip hole
The setting for the straight trough type hole 522 that radiates on motor base 5 makes entire motor that can strengthen heat dissipation with ventilation by forced draft；Specifically, output
Output shaft 33 in mechanism 3 passes through the bearing with end cover hole location 63 of electric motor end cap 6, and is connected by rolling bearing 34 and electric motor end cap 6
It connects, the bearing with end cover hole location 63 is class hole, withstands the outer ring of rolling bearing 34, and rolling bearing 34 when motor operation is avoided to send out
Raw axial float.
In planetary gear type brushed DC motor provided by the embodiment of the present invention, the material of electric motor end cap 6 and motor base 5
Material is cast iron, there is that high intensity, good toughness and wearability are strong.
The embodiment of the invention provides a kind of planetary gear type brushed DC motor, the planetary gear type brushed DC electricity
Machine operational process is as follows: after brushed DC motor is powered, electric current flows on brushgear 13 along positive pole, brushgear 13
With 25 phase mutual friction of commutator, electric current flows into rotor winding coil by commutator 25, through electricity after rotor winding coil outflow
Brush device 13 returns to power cathode, forms closed circuit；Since rotor winding coil is in the main pole of the generation of field frame assembly 1
In magnetic field, so rotor winding coil will receive electromagnetic force, two sides of rotor winding coil are due to current direction difference, by big
To form electromagnetic torque, rotor assembly starts turning the opposite electromagnetic force of the small same direction under electromagnetic torque pulling.Due to
The presence of commutator 25, electromagnetic force direction suffered by rotor winding coil is constant, therefore brushed DC motor is at same direction
Continuous rotation.During rotation, rotor assembly 2 is slowed down by the cooperation with field frame assembly 1, and output mechanism 3 will turn
The low speed of sub- assembly 2 is transmitted to the external world.
The embodiment of the invention provides a kind of planetary gear type brushed DC motor, the planetary gear type brushed DC motors
Sun gear in planetary reducer is combined with the rotor of brushed DC motor, is avoided because of the problems such as assembling, wearing production
Raw bias causes motor to break down, while its better reliability, slowing effect are more excellent；By outer gear ring in planetary reducer
Connect combination with the field frame assembly of brushed DC motor, reduces the use of components, reduces motor volume, improves
The utilization rate in space；Being directly connected to for rotor assembly and output mechanism, reduces the loss of transmission, improves the efficiency of transmission；
The setting of motor housing plays protective effect to motor internal component, extends the service life of motor.As it can be seen that the planet
Gear type brush direct current motor has the advantages that compact-sized, small in size, transmission efficiency is high and long service life.
In addition, being provided for the embodiments of the invention a kind of planetary gear type brushed DC motor above has carried out detailed Jie
It continues, herein should be using a specific example illustrates the principle and implementation of the invention, the explanation of above embodiments
It is merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to this
The thought of invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not answered
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of planetary gear type brushed DC motor, which is characterized in that the planetary gear type brushed DC motor includes fixed
Sub- assembly, rotor assembly and output mechanism；
The field frame assembly includes multiple main poles, multiple commutating poles and multiple brushgears；The multiple main pole includes master
Pole core and excitation winding, the main pole iron core are fixed, and the excitation winding is arranged by predetermined manner in main pole iron core
It is interior；The multiple commutating pole includes commutating pole iron core and commutating-pole winding, and the commutating pole iron core is fixed, the commutating-pole winding
It is arranged in commutating pole iron core by predetermined manner；The main pole iron core inner wall and commutating pole iron core inner wall are provided with the first tooth
It is wide；
The rotor assembly include multiple peripheries be provided with the second flank profil planetary gear and with the main pole iron core, commutating pole
The rotor core of iron core coaxial arrangement；The rotor core includes rotor section, and the rotor section periphery is provided with third flank profil；Institute
It states multiple planetary gears to be arranged between the rotor core and the main pole iron core, commutating pole iron core, and based on described the
Two flank profils are engaged with the first flank profil of the third flank profil of the rotor core and the main pole iron core, commutating pole iron core respectively；
The output mechanism includes the output connector with rotor core coaxial arrangement, the input terminal of the output connector
It is connect with the multiple planetary gear.
2. planetary gear type brushed DC motor according to claim 1, which is characterized in that the planetary gear type alternating current
Machine further includes motor housing；The multiple main pole iron core, multiple commutating pole iron cores and multiple brushgears are fixed on the electricity
In machine shell, the output end of the output connector stretches out the motor housing.
3. planetary gear type brushed DC motor according to claim 2, which is characterized in that the rotor core further includes setting
The first rotating shaft section and the second shaft section in the rotor section axial ends are set, the first rotating shaft section and the motor housing are sliding
Dynamic cooperation, the second shaft section are slidably matched with the output connector.
4. planetary gear type brushed DC motor according to claim 3, which is characterized in that the output connector is in direction
Annular bearing seat is provided on the side of the rotor core, the second shaft section cooperation is on the annular bearing seat.
5. planetary gear type brushed DC motor according to claim 2, which is characterized in that the motor housing material is casting
Iron.
6. planetary gear type brushed DC motor according to claim 1, which is characterized in that the planetary gear is opened along axial direction
There is pin hole, the output mechanism further includes the pin shaft and output shaft for being separately positioned on the output connector two sides, the multiple
Pin shaft is respectively protruding into corresponding multiple planetary gear pin holes, and the output shaft and the output connector are coaxially disposed.
7. planetary gear type brushed DC motor according to claim 1, which is characterized in that the polarity of two neighboring main pole
It is different.
8. planetary gear type brushed DC motor according to claim 1, which is characterized in that be provided with two on the rotor core
A ring-like through-hole of circular arc along the distribution of rotor core axisymmetrical, the rotor windings are arranged by predetermined manner in the circular arc ring
In type through-hole.
9. planetary gear type brushed DC motor according to claim 7, which is characterized in that the circular arc annular through-hole it is interior
Wall is furnished with insulating materials；The circle of the rotor windings insulation or the conducting wire of rectangular section are coiled into.
10. planetary gear type brushed DC motor according to claim 1, which is characterized in that the main pole iron core, commutation
The third flank profil of first flank profil of pole iron core, the second flank profil of planetary gear and rotor core is involute profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435841.XA CN109378958B (en) | 2018-11-28 | 2018-11-28 | Planetary gear type brush direct current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435841.XA CN109378958B (en) | 2018-11-28 | 2018-11-28 | Planetary gear type brush direct current motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109378958A true CN109378958A (en) | 2019-02-22 |
| CN109378958B CN109378958B (en) | 2021-02-19 |
Family
ID=65383468
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811435841.XA Active CN109378958B (en) | 2018-11-28 | 2018-11-28 | Planetary gear type brush direct current motor |
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| US20080007130A1 (en) * | 2006-03-03 | 2008-01-10 | Edelson Jonathan S | Motor using magnetic normal force |
| CN202840889U (en) * | 2012-08-31 | 2013-03-27 | 中电电机股份有限公司 | Excitation magnetic pole of large-power DC motor |
| WO2013189649A1 (en) * | 2012-06-18 | 2013-12-27 | Robert Bosch Gmbh | Electric motor with planetary gear unit |
| CN103502638A (en) * | 2010-12-17 | 2014-01-08 | 维斯塔斯风力系统有限公司 | Apparatus and methods for monitoring component health in a gearbox of a power generation system |
| CN204652189U (en) * | 2015-05-19 | 2015-09-16 | 常州华欣彤源电机厂 | Minisize dc formula motor |
| CN205901557U (en) * | 2016-08-12 | 2017-01-18 | 河南行星智能电子科技有限公司 | Novel brushless motor that built -in planetary reducer constructs |
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- 2018-11-28 CN CN201811435841.XA patent/CN109378958B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080007130A1 (en) * | 2006-03-03 | 2008-01-10 | Edelson Jonathan S | Motor using magnetic normal force |
| CN103502638A (en) * | 2010-12-17 | 2014-01-08 | 维斯塔斯风力系统有限公司 | Apparatus and methods for monitoring component health in a gearbox of a power generation system |
| WO2013189649A1 (en) * | 2012-06-18 | 2013-12-27 | Robert Bosch Gmbh | Electric motor with planetary gear unit |
| CN202840889U (en) * | 2012-08-31 | 2013-03-27 | 中电电机股份有限公司 | Excitation magnetic pole of large-power DC motor |
| CN204652189U (en) * | 2015-05-19 | 2015-09-16 | 常州华欣彤源电机厂 | Minisize dc formula motor |
| CN205901557U (en) * | 2016-08-12 | 2017-01-18 | 河南行星智能电子科技有限公司 | Novel brushless motor that built -in planetary reducer constructs |
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| CN109378958B (en) | 2021-02-19 |
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