CN109286296A - A kind of wheeled brushed DC motor of cycloidal pin - Google Patents
A kind of wheeled brushed DC motor of cycloidal pin Download PDFInfo
- Publication number
- CN109286296A CN109286296A CN201811435981.7A CN201811435981A CN109286296A CN 109286296 A CN109286296 A CN 109286296A CN 201811435981 A CN201811435981 A CN 201811435981A CN 109286296 A CN109286296 A CN 109286296A
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- China
- Prior art keywords
- motor
- cycloidal
- brushed
- wheeled
- iron core
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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
Abstract
The invention discloses a kind of wheeled brushed DC motors of cycloidal pin, wherein the wheeled brushed DC motor of cycloidal pin includes: including field frame assembly, rotor assembly, output mechanism and motor housing.The present invention combines cycloidal-pin gear speed 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 wheeled brushed DC motor of cycloidal pin.
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.
Cycloidal planetary gear speed reducer is a kind of application planetary drive principle, using the novel transmission dress of cycloidal pin teeth engagement
It sets.Cycloidal planetary gear speed reducer whole transmission device can be divided into three parts: importation, deceleration part, output par, c.In input shaft
The upper double eccentric sleeves equipped with 180 ° of a dislocation are filled on eccentric bushing there are two the roller bearing of referred to as pivoted arm, formed H mechanism,
The centre bore of two Cycloidal Wheels is the raceway of rotary arm bearing on eccentric bushing, and by one group of annular array on Cycloidal Wheel and needle tooth
Needle tooth is meshed, to form the internal messing deceleration mechanism that tooth difference is a tooth.When input shaft rotates one week with eccentric bushing, due to
Event is limited the characteristics of tooth curve and its by needle tooth in Cycloidal Wheel, the movement of Cycloidal Wheel becomes existing revolution putting down for rotation again
Face movement, when input shaft just circles, eccentric bushing is also rotated one week, and Cycloidal Wheel turns over a tooth in opposite direction to obtain
Slow down, then output shaft is passed to, to obtain lower by the low speed spinning motion of Cycloidal Wheel by pin shaft by W output mechanism
Output revolving speed.
The output revolving speed of traditional brush DC motors is often excessively high, in actual use, generally will be through cycloid
The requirement of revolving speed is just able to satisfy after pin gear speed reducer 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 cycloidal-pin wheels
Cycloidal-pin wheel mechanism and brushed DC motor are combined, are made by formula brushed DC motor, the wheeled brushed DC motor of the cycloidal pin
The revolving speed of output is more in line with general need, improves the efficiency of transmission, has saved resource.
Correspondingly, the cycloidal pin is wheeled to be had the embodiment of the invention provides a kind of cycloidal pin wheeled brushed DC motor
Brushless motor includes field frame assembly, rotor assembly and output mechanism；
The field frame assembly includes multiple main poles, multiple commutating poles, multiple needle teeth and multiple brushgears；It is the multiple
Main pole includes main pole iron core and excitation winding, and the main pole iron core is fixed, and the excitation winding presses predetermined manner
It is arranged in main pole iron core；The multiple commutating pole includes commutating pole iron core and commutating-pole winding, and the commutating pole iron core is solid
Fixed motionless, the commutating-pole winding is arranged in commutating pole iron core by predetermined manner；The multiple needle tooth is evenly arranged on the main magnetic
Pole iron core inner wall and commutating pole iron core inner wall；
The rotor assembly is arranged in the main pole iron core and commutating pole iron core, including with the main pole iron core and
The rotor core of commutating pole iron core coaxial arrangement；The rotor core includes axially disposed and the first of 180 ° of mutual dislocation is inclined
Heart section and the second eccentric segment, first eccentric segment and the second eccentric segment periphery are processed as the cycloid cooperated with the multiple needle tooth
Flank profil；The cycloidal profile of the rotor core is meshed with multiple needle teeth on the field frame assembly, the cycloid on rotor core
Flank profil and the needle tooth number of teeth of field frame assembly are unequal；；
The output mechanism includes the output connector being coaxially disposed with the main pole iron core and commutating pole iron core, described
The input terminal of output connector is connect with the rotor core, is driven and is rotated by the rotor core.
Optional embodiment, the wheeled brushed DC motor of cycloidal pin includes motor housing；The multiple main pole
Iron core, multiple commutating pole iron cores and brushgear are fixed in the motor housing, and the output end of the output connector stretches out
The motor housing.
Optional embodiment, the rotor core both ends are respectively arranged with coaxial first rotating shaft section and the second shaft
Section；Be respectively arranged on first eccentric segment and the second eccentric segment along the first uniformly distributed Cycloidal Wheel pin hole of respective circumference and
Second Cycloidal Wheel pin hole；
The output mechanism further includes the pin shaft and output shaft for being separately positioned on the output connector two sides；With described defeated
Out centered on connector axis, the pin shaft is along the circumferential direction uniformly arranged, and the output shaft and the output connector are coaxial
Setting；
The first rotating shaft section is slidably fitted on the motor housing, and the second shaft section is slidably fitted in described defeated
Out on connector；
The pin shaft is respectively protruding into corresponding first Cycloidal Wheel pin hole and the second Cycloidal Wheel pin hole.
Optional embodiment, the output connector are coaxially arranged with annular bearing seat on the side of the pin shaft,
The second shaft section cooperation is on the annular bearing seat.
Optional embodiment, the motor housing material are cast iron.
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 inner wall and commutating pole iron core inner wall are provided with multiple needle tooth sockets position,
The multiple needle tooth is slidably fitted in respectively in the multiple needle tooth socket position.
Optional embodiment, the field frame assembly further include bezel ring,；
Axis of the field frame assembly close to the side of the output mechanism, for the multiple needle tooth is arranged in the bezel ring,
To positioning；
Corresponding to through-hole is had on the position of the multiple needle tooth on the bezel ring, it is each passed through based on gear pin
The through-hole is correspondingly connected with the multiple needle tooth, carries out radial positioning to needle tooth.
The embodiment of the invention provides a kind of wheeled brushed DC motor of cycloidal pin, the wheeled brushed DC motors of the cycloidal pin
Double eccentric sleeves, the first Cycloidal Wheel and the second Cycloidal Wheel in cycloidal-pin gear speed reducer and the rotor structure of brushed DC motor are mutually tied
It closes, avoids causing motor to break down because the problems such as assembling, wearing generates bias, while its better reliability, slowing effect
It is more excellent；The combination of cycloidal-pin wheel structure and field frame assembly 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 effect of transmission
Rate；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 pendulum
Line pin gear-type brushed DC 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 the wheeled brushed DC motor of cycloidal pin in the embodiment of the present invention；
Fig. 2 is the half sectional view of the wheeled brushed DC motor three-dimensional structure of cycloidal pin in the embodiment of the present invention；
Fig. 3 is the explosive view of the wheeled brushed DC motor three-dimensional structure of cycloidal pin in the embodiment of the present invention；
Fig. 4 is the wheeled brushed DC motor field frame assembly of cycloidal pin and motor base three-dimensional structure in the embodiment of the present invention
Half sectional view；
Fig. 5 is the three-dimensional structure view of the wheeled brushed DC motor rotor assembly of cycloidal pin in the embodiment of the present invention；
Fig. 6 is the three-dimensional structure view of the wheeled brushed DC motor output mechanism of cycloidal pin in the embodiment of the present invention；
Fig. 7 is the three-dimensional structure view of the motor base of the wheeled brushed DC motor of cycloidal pin in the embodiment of the present invention；
Fig. 8 is the three-dimensional structure view of the electric motor end cap of the wheeled brushed DC motor of cycloidal pin in the embodiment of the present invention.
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 the wheeled brushed DC motor of cycloidal pin in the embodiment of the present invention, and Fig. 2 is of the invention real
The half sectional view of the wheeled brushed DC motor three-dimensional structure of cycloidal pin in example is applied, Fig. 3 is that cycloidal pin is wheeled 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 wheeled brushed DC motor of cycloidal pin, the wheeled brushed DC motors of the cycloidal pin
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 cycloidal pin wheeled brushed DC motor field frame assembly and motor base in the embodiment of the present invention
Half sectional view, the field frame assembly 1 are fixed in motor base 5, and field frame assembly 1 is quiet in the wheeled brushed DC motor of cycloidal pin
Only motionless 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
Organically combine one with the pinwheel configuration of traditional cycloidal-pin gear speed reducer, to realize that structure simplifies, reduces the functions such as volume,
In inventive embodiments, the basic composition of stator is similar with the composition substantially of existing structure, but utilizes the group of different shape silicon steel sheet
Stator structure needed for conjunction forms the embodiment of the present invention, existing stator structure do not have, and answer institute according to embodiments of the present invention
The construction profile needed is adjusted correspondingly stator core.It should be noted that based on existing technical conditions and being produced into
This consideration 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
It can be made in a manner of single part shown in 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 go out multiple needle tooth sockets position, the needle
Multiple needle teeth 14 are provided in tooth socket position, the needle tooth 14 is based on bezel ring, 15 and carries out axially position, and the bezel ring, 15 passes through screw
Field frame assembly 1 is fastened on close to the side of output mechanism 3；Wherein, the needle tooth 14 is internally provided with connect with needle tooth 14
Gear pin, the gear pin sequentially passes through needle tooth 14, bezel ring, 15, and the screw thread based on screw-threaded coupling in the bezel ring, 15 is installed
Kong Shang realizes the radial positioning to needle tooth 14.
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 the wheeled brushed DC motor rotor assembly of cycloidal pin in the embodiment of the present invention, rotor
Assembly 2 is the part rotated in the wheeled brushed DC motor of cycloidal pin.
It is similar with above-mentioned introduced 1 structure of field frame assembly, in rotor assembly 2 shown by the attached drawing of the embodiment of the present invention
Rotor core be an entirety design of part, in specific implementation, according to rotor core shape, by multi-disc shape it is identical or
Variform silicon steel sheet combines to be formed.Considered based on existing technical conditions and production cost, is needed in the form of silicon steel sheet
Rotor core is made, but under the support of specific occasion and certain material, rotor core can be with single part shown in attached drawing
Mode is made；Specific embodiment shows that actual conditions determine.
Rotor assembly 2 includes that rotor core 21 and the rotor windings being arranged on the rotor core 21 (do not show in figure
Out).Specifically, being provided with the ring-like through-hole 211 of circular arc for placing rotor windings on the rotor core 21；The rotor windings
Effect be electromagnetic torque or induced electromotive force, the rotor windings are generated to be formed by connecting according to certain rules by coil, and point
It embeds in the circular arc annular through-hole 211 of rotor core 21 for two layers；It should be noted that between two layers of coil and coil and iron
It all must properly insulate between core.Therefore, in embodiments of the present invention, the circle of coil insulation or rectangular section are led
Line is coiled into, and is furnished with insulating materials on the inner wall of the circular arc annular through-hole 211, 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 both ends of the rotor core 21 are respectively arranged with coaxial first rotating shaft section 22 and the second shaft section
23, the first rotating shaft section 22 is based on rolling bearing 24 and the motor base 5 cooperates, and the second shaft section 23 is based on rolling
Bearing 25 coaxially cooperates in the side of the output mechanism 3；Cooperation and second turn of the first rotating shaft section 22 with motor base 5
The cooperation of shaft part 23 and output mechanism 3 rotate rotor core 21 can along a fixing axle always during rotation.
Specifically, being provided with commutator 28 in the first rotating shaft section 22, the commutator 28 is equipped with brushgear, can incite somebody to action
External dc power supply is converted to the alternating current in rotor winding coil, keeps the direction of electromagnetic torque invariable.It needs to illustrate
, the commutator in the embodiment of the present invention is identical as the commutator in general brushed DC motor, is all to have dove by many
The commutator segment of tail shape lines up a cylinder, uses mica-sheet insulation therebetween, and both ends use two V-rings to clamp and constitute again；Rotor around
The lead of group coil head end and tail end is welded in corresponding commutator segment, and commutator 28 and rotor windings form one and close
Close winding.
Particularly, in embodiments of the present invention, by the double eccentric sleeves and the involvement of Cycloidal Wheel mechanism in cycloidal-pin gear speed reducer
Into rotor core 21.Specifically, the rotor core 21 divides for the first eccentric segment 26 and the second eccentric segment 27, described first partially
Heart section 26 and 27 periphery of the second eccentric segment are processed as the cycloidal profile cooperated with the multiple needle tooth 14, first eccentric segment 26
It is put with being respectively arranged on the second eccentric segment 27 along four uniformly distributed the first Cycloidal Wheel pin holes of respective circumference and four second
Line wheel pin hole 271；In 21 rotation process of rotor core, the cycloidal profile of 27 periphery of the first eccentric segment 26 and the second eccentric segment with
Needle tooth 14 on 121 inner wall of main pole iron core 111 and commutating pole iron core engages, and the velocity of rotation of rotor core 21 is restricted；
Four first Cycloidal Wheel pin holes and four the second Cycloidal Wheel pin holes 271 correspond, and there is always overlapping in motion process
Part, overlapping part are the circular contour of a size constancy, and the output mechanism 3 cooperates with circular contour, and output mechanism 3 will
The rotation of rotor core 21 is output to the external world.
It should be noted that the embodiment of the present invention is by double eccentric sleeves in cycloidal-pin gear speed reducer and Cycloidal Wheel mechanism and has brush
The rotor structure of direct current generator combines, compared with existing retarder motor combination equipment, on the one hand, existing retarder with
Motor keeps coaxially connected if necessary, needs very high assembly precision, and compared with assembly precision, machining accuracy is in an implementation more
It is easy to be controlled；On the other hand, in long-time service, the discrete setting of retarder and motor can generate loosening in use, hold
It is also easy to produce not coaxial phenomenon, leads to problems such as noise of equipment increase, transmission efficiency reduction, it therefore, will be in cycloidal-pin gear speed reducer
Double eccentric sleeves and Cycloidal Wheel mechanism and rotor machining be conducive to increase the service life of motor on the same axis, have good
Practicability.
Fig. 6 is the three-dimensional structure view of the wheeled brushed DC motor output mechanism of cycloidal pin in the embodiment of the present invention, output
Mechanism 3 is the part exported in the wheeled brushed DC motor of cycloidal pin.The output mechanism 3 includes output connector 31, pin shaft
32 and output shaft 33.Specifically, the 31 1 lateral edge circumference of output connector is uniformly fixed, there are four pin shaft 32, the pins
The size of axis 32 is identical as the circular contour of 271 overlapping part of the first Cycloidal Wheel pin hole and the second Cycloidal Wheel pin hole, described
Pin shaft 31, which remains, to be stuck in the first Cycloidal Wheel pin hole and the second Cycloidal Wheel pin hole 271；Specifically, the output shaft 32 is coaxial
Ground is fixed on the other side of the output connector 31 and stretches out the electric motor end cap 6, and the output shaft is based on rolling bearing 34
Cooperation is in the electric motor end cap 6；Specifically, the medium position of the output connector 31 is provided with annular bearing seat 311, institute
The outer ring for stating rolling bearing 25 is fixed in annular bearing seat 311；Specifically, the output shaft 33 stretches out the one of electric motor end cap 6
End is provided with keyway 331, and output shaft and other assemblies are attached by the mode convenient for being connected by key.
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 the wheeled brushed DC motor of cycloidal pin in example is applied, Fig. 8 is cycloid in the embodiment of the present invention
The three-dimensional structure view of the electric motor end cap of pin 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 the wheeled brushed DC motor of cycloidal pin 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 wheeled brushed DC motor of cycloidal pin, the wheeled brushed DC electricity of cycloidal pin
Machine operational process is as follows: after brushed DC motor is powered, electric current flows on brushgear 13 along positive pole, brushgear 13
With 28 phase mutual friction of commutator, electric current flows into rotor winding coil by commutator 28, 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 28, 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 wheeled brushed DC motor of cycloidal pin, the wheeled brushed DC motors of the cycloidal pin
Double eccentric sleeves, the first Cycloidal Wheel and the second Cycloidal Wheel in cycloidal-pin gear speed reducer and the rotor structure of brushed DC motor are mutually tied
It closes, avoids causing motor to break down because the problems such as assembling, wearing generates bias, while its better reliability, slowing effect
It is more excellent；The combination of cycloidal-pin wheel structure and field frame assembly 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 effect of transmission
Rate；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 pendulum
Line pin gear-type brushed DC 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 wheeled brushed DC motor of cycloidal pin 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 wheeled brushed DC motor of cycloidal pin, which is characterized in that the wheeled brushed DC motor of cycloidal pin includes fixed
Sub- assembly, rotor assembly and output mechanism；
The field frame assembly includes multiple main poles, multiple commutating poles, multiple needle teeth and multiple brushgears；The multiple main magnetic
Pole includes main pole iron core and excitation winding, and 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, described to change
It is arranged in commutating pole iron core to pole winding by predetermined manner；The multiple needle tooth is evenly arranged on the main pole iron core inner wall and changes
To pole iron core inner wall；
The rotor assembly is arranged in the main pole iron core and commutating pole iron core, including with the main pole iron core and commutation
The rotor core of pole iron core coaxial arrangement；The rotor core includes axially disposed and 180 ° of mutual dislocation of the first eccentric segment
With the second eccentric segment, first eccentric segment and the second eccentric segment periphery are processed as the cycloid tooth cooperated with the multiple needle tooth
It is wide；The cycloidal profile of the rotor core is meshed with multiple needle teeth on the field frame assembly, the cycloid tooth on rotor core
It is wide unequal with the needle tooth number of teeth of field frame assembly；
The output mechanism includes the output connector being coaxially disposed with the main pole iron core and commutating pole iron core, the output
The input terminal of connector is connect with the rotor core, is driven and is rotated by the rotor core.
2. the wheeled brushed DC motor of cycloidal pin according to claim 1, which is characterized in that the cycloidal pin is wheeled brush
Direct current generator includes motor housing；The multiple main pole iron core, multiple commutating pole iron cores and multiple brushgears are fixed on institute
It states in motor housing, the output end of the output connector stretches out the motor housing.
3. the wheeled brushed DC motor of cycloidal pin according to claim 2, which is characterized in that the rotor core both ends point
It is not provided with coaxial first rotating shaft section and the second shaft section；Edge is respectively arranged on first eccentric segment and the second eccentric segment
Respective circumference uniformly distributed the first Cycloidal Wheel pin hole and the second Cycloidal Wheel pin hole；
The output mechanism further includes the pin shaft and output shaft for being separately positioned on the output connector two sides；With output company
Centered on fitting axis, the pin shaft is along the circumferential direction uniformly arranged, and the output shaft and the output connector are coaxially disposed；
The first rotating shaft section is slidably fitted on the motor housing, and the second shaft section is slidably fitted in the output and connects
On fitting；
The pin shaft is respectively protruding into corresponding first Cycloidal Wheel pin hole and the second Cycloidal Wheel pin hole.
4. the wheeled brushed DC motor of cycloidal pin according to claim 3, which is characterized in that the output connector is in institute
It states and is coaxially arranged with annular bearing seat on the side of pin shaft, the second shaft section cooperation is on the annular bearing seat.
5. the wheeled brushed DC motor of cycloidal pin according to claim 2, which is characterized in that the motor housing material is
Cast iron.
6. the wheeled brushed DC motor of cycloidal pin according to claim 1, which is characterized in that the pole of two neighboring main pole
Property it is different.
7. the wheeled brushed DC motor of cycloidal pin according to claim 1, which is characterized in that be provided on the rotor core
Two ring-like through-holes of circular arc along the distribution of rotor core axisymmetrical, the rotor windings are arranged by predetermined manner in the circular arc
In ring-like through-hole.
8. the wheeled brushed DC motor of cycloidal pin according to claim 7, which is characterized in that the circular arc annular through-hole
Inner wall is furnished with insulating materials；The circle of the rotor windings insulation or the conducting wire of rectangular section are coiled into.
9. the wheeled brushed DC motor of cycloidal pin according to claim 1, which is characterized in that the main pole iron core inner wall and
Commutating pole iron core inner wall is provided with multiple needle tooth sockets position, and the multiple needle tooth is slidably fitted in the multiple needle tooth socket position respectively
In.
10. the wheeled brushed DC motor of cycloidal pin according to claim 1, which is characterized in that the field frame assembly further includes
Bezel ring,；
The field frame assembly is arranged in close to the side of the output mechanism in the bezel ring, and the axial direction for the multiple needle tooth is fixed
Position；
Corresponding to through-hole is had on the position of the multiple needle tooth on the bezel ring, it is each passed through based on gear pin described
Through-hole is correspondingly connected with the multiple needle tooth, carries out radial positioning to needle tooth.
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| CN201811435981.7A CN109286296A (en) | 2018-11-28 | 2018-11-28 | A kind of wheeled brushed DC motor of cycloidal pin |
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| CN201811435981.7A CN109286296A (en) | 2018-11-28 | 2018-11-28 | A kind of wheeled brushed DC motor of cycloidal pin |
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Application publication date: 20190129 |