CN109301971A - A kind of carbon brush connects power supply machine and its carbon brush replacing options - Google Patents
A kind of carbon brush connects power supply machine and its carbon brush replacing options Download PDFInfo
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- CN109301971A CN109301971A CN201811342476.8A CN201811342476A CN109301971A CN 109301971 A CN109301971 A CN 109301971A CN 201811342476 A CN201811342476 A CN 201811342476A CN 109301971 A CN109301971 A CN 109301971A
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- China
- Prior art keywords
- carbon brush
- sleeve
- pushing block
- control ring
- power supply
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 267
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 267
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 32
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 244000185238 Lophostemon confertus Species 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 241000237858 Gastropoda Species 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 102000028391 RNA cap binding Human genes 0.000 description 1
- 108091000106 RNA cap binding Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Classifications
-
- 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
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
- H02K5/145—Fixedly supported brushes or brush holders, e.g. leaf or leaf-mounted brushes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/006—Structural associations of commutators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention discloses a kind of carbon brush to connect power supply machine and its carbon brush replacing options, belongs to technical field of motors.The present invention includes casing ontology, clamping unit, switch unit and conductive unit；Wherein the carbon brush holder of clamping unit includes two pairs with upper bush, and sleeve is fixed on support ring outside, and when sleeve inner is equipped with carbon brush, and motor works, and only a pair of of carbon brush stretches out hole by the carbon brush of switch unit and is in contact with ring-type commutator, guarantees motor work；The present invention is connected on rear end cap on the inside of support ring by wind spring, and when carbon brush abrasion is soon used up, wind spring drives carbon brush holder rotation, and spare carbon brush is in contact with cyclic annular commutator, realizes automatic replacement carbon brush.Structure design can timely replace carbon brush automatically, the workload for requiring manually to replace carbon brush after carbon brush is used up each time is alleviated, improves work efficiency, reduces labour, motor is damaged because staff replaces carbon brush not in time in addition, being also prevented from after carbon brush is used up.
Description
Technical field
The present invention relates to technical field of motors, connect power supply machine and its carbon brush replacement side more specifically to a kind of carbon brush
Method.
Background technique
Be generally provided with brush in brush motor or generator at present, the brush be motor or generator or other
The device that energy or signal are transmitted between the fixed part and rotating part of rotating machinery, mostly uses carbon brush to make greatly in the prior art
Motor work is supported for brush, and in the brush motor course of work, carbon brush is contacted with transducer face, rotor rotation, will
Electric signal is conveyed to the coil of rotor by converter.It is easy to wear in use since the main ingredient of carbon brush is carbon, it needs
Want periodic maintenance to replace, but there is a problem of in replacement process following: (1) carbon brush service life is short, artificial frequently replacement carbon brush
The working efficiency that motor can be reduced cannot achieve successional production；(2) fail to replace carbon brush in time after using up due to carbon brush
And motor is damaged, shorten motor service life.Therefore need to design a kind of motor for capableing of timely automated replacement carbon brush.
Through retrieving, China Patent No. ZL 201120072002.3, authorized announcement date: on March 18th, 2011, innovation and creation
Title: a kind of replaceable carbon brush structure of carbon brush motor, this application include brush box, carbon brush, snail shape spring, bracket and brush box bottom
Plate, the brush box bottom board and brush box, carbon brush, the fixed integral carbon brush component of assembling of snail shape spring；The brush box bottom board includes
Fit structure A, C, E, fit structure A are a kind of rectangular mouth structure, and fit structure C is a kind of chamfering structure, and fit structure E is one
Kind convex structure；The bracket includes fit structure B, D, F, and fit structure B is a kind of back-off structure, and fit structure D is one kind
Notch, fit structure F are a kind of platform structure, and carbon brush component passes through the cooperation of fit structure A and B, C and D, E and F, with
Bracket is detachably connected to one piece.When carbon brush has been ground in this application, brush box bottom plate structure can integrally be taken out, be changed new
Brush box continues to use, but this application is not to install multiple spare carbon brush simultaneously, thus carbon brush service life is short, and it is artificially fixed to need
Phase replacement, wastes a large amount of labour.
China Patent No. ZL 201310304641.1, authorized announcement date: on June 17th, 2015, invention and created name: one
Kind carbon brush component and the brush for using the carbon brush component, this application include carbon brush holder and are installed on the carbon brush holder
Multiple carbon brush, carbon brush holder include first base, elastic component, second base, third pedestal and more connecting rods, and the one of elastic component
End connection first base；Second base is connected to the other end of elastic component；Third pedestal is rotationally connected with the second bottom by shaft
On seat；Connecting rod is circumferentially arranged to be arranged on third pedestal and perpendicular to shaft；Carbon brush is correspondingly connected to the connecting rod.
Multiple brushes that carbon brush component in this application is circumferentially arranged in its rotation direction, one of brush wear totally when,
Three base rotations rotate another brush rapidly, contact with commutator, to keep electric energy endlessly defeated by commutator
Send to coil, but this application is during rotary brush, it may occur that two brushes on a carbon brush component simultaneously with change
It is contacted to device, causes electric current to generate circuit between two brushes, influence the rotation of coil.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to solve the problems, such as in the prior art carbon brush after use cannot timely automated replacement,
It provides a kind of carbon brush and connects power supply machine and its carbon brush replacing options；The present invention is equipped with multiple carbon brush, two of them inside motor
For the carbon brush that works, which is in contact with commutator, and remaining carbon brush is spare brush, when abrasion occurs for on-load brush not
After capable of continuing to use, under the twisting force of wind spring, rotating carbon brush holder makes spare carbon brush be in contact with commutator, guarantees motor
It continues working.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of carbon brush of the invention connects power supply machine, including casing ontology, clamping unit and switch unit, wherein casing ontology
It is inside provided with stator, the inside rotation of stator is provided with rotor, and rotor is mounted on output shaft；
Clamping unit includes rear end cap and carbon brush holder, and the rear end cap is fixedly installed in one end of casing ontology；It is described
Carbon brush holder include two pairs with upper bush, sleeve is equally circumferentially spaced along support ring lateral wall, and in sleeve backwards to support ring
One end is provided with opening, and sleeve inner is equipped with carbon brush, which is clamped by pushing block preceding in sleeve, and carbon brush can be carried out in the opening
It is flexible；Wind spring is installed on the inside of the support ring, support ring is connected on rear end cap by wind spring；
Switch unit includes switching control ring and cyclic annular commutator, and the switching control ring is fixedly connected with rear end cap,
And setting offers a pair of of carbon brush and stretches out hole, carbon brush can be from this between carbon brush holder and cyclic annular commutator on the switching control ring
Carbon brush stretches out hole stretching and contacts with cyclic annular commutator；After carbon brush abrasion, which stretches out hole from carbon brush to it, to be stretched out, the preceding pushing block edge
The rotation of switching control ring.
As a further improvement of the present invention, further include conductive unit, the conductive unit include conductive rod, electric contact,
Tabletting and binding post, the binding post are arranged on rear end cap；One end of the tabletting is connected with binding post, other end elasticity
It is resisted against on electric contact, which is fixed at the top of support ring；The conductive rod is set up along length sleeve side
The top of sleeve, and conductive rod one end is connected with electric contact, what the other end opened up at the top of sleeve connects electric hole and sleeve inner
Carbon brush slide electrical contact.
As a further improvement of the present invention, the preceding pushing block front end clamps carbon brush by brush holder；The preceding pushing block
Rear end is connected by tension spring with the rear pushing block in sleeve；The rear pushing block is connected by compression spring with support ring, and
Top surface or/and bottom surface are equipped with limited post on the rear pushing block；And it is provided with limited block on rear pushing block, sleeve lateral wall is opened up and is limited
The limiting slot that position block is slidably matched.
As a further improvement of the present invention, the outlet end that the carbon brush stretches out hole is equipped with boss, and before boss
A side of end face is connected by slope surface with the lateral surface of switching control ring；The carbon brush stretches out an inner wall of the input end in hole
It is connected by guide surface with the medial surface transition of switching control ring, which is arc surface.
As a further improvement of the present invention, the thickness E of the boss is the lateral surface and ring-type of switching control ring
The 1/k of distance between commutator medial surface, k value are 2-5.
As a further improvement of the present invention, the front end face (3113) of the slope surface (3112) and boss (3111) it
Between angle a be 20 ° -45 °.
As a further improvement of the present invention, the sidewall width D of the boss1The distance between two neighboring opening
The ratio between be 1/j, j value be j > 1.
As a further improvement of the present invention, the plug length L1, jack depth L2With the limit of tension spring
Elongation L3The vertical range h being all larger than between the upper and lower ends of guide surface.
As a further improvement of the present invention, when the carbon brush of sleeve inner at work, the limited post of the sleeve inner
The distance between preceding pushing block bottom surface L4It is m with the ratio between switching control ring wall thickness, m value is 0.15-0.5, and L4> E.
A kind of carbon brush of the invention connects the carbon brush replacing options of power supply machine, process are as follows: motor at work, one pair of them
Carbon brush stretches out hole stretching from carbon brush and is in contact with cyclic annular commutator, other carbon brush are inside switching control ring as spare；Work as carbon
When brush wear to the rear end of carbon brush and the front end face of boss flushes, under the twisting force of wind spring, carbon brush holder rotation is driven, is being turned
When dynamic, the limited post on rear pushing block is moved to the medial surface of switching control ring along guide surface, meanwhile, the rear end of carbon brush is from boss
Front end face the lateral surface of switching control ring is moved to along slope surface；Spare carbon brush turns to carbon brush and stretches out hole, in compression spring
Under the action of, so that carbon brush is stretched out hole stretching from carbon brush and then be in contact with cyclic annular commutator, guarantees that motor continues working.
3. beneficial effect
Using technical solution provided by the invention, compared with existing well-known technique, there is following remarkable result:
(1) a kind of carbon brush of the invention connects power supply machine, and carbon brush holder includes two pairs with upper bush, and sleeve is on the outside of support ring
Wall is equally circumferentially spaced, and in sleeve, inside is equipped with carbon brush, and when motor works, only a pair of of carbon brush stretches out hole by carbon brush
It is in contact with cyclic annular commutator；Hollow column is connected to by wind spring on the inside of support ring, which is fixed on rear end cap；
When carbon brush abrasion cannot be in use, carbon brush be just flushed with the front end face of boss, carbon brush and carbon brush stretch out between hole without active force,
Under the twisting force of wind spring, carbon brush holder rotation is driven, is stretched out until next group of carbon brush stretches out hole from carbon brush, with cyclic annular commutator
It is in contact, when structure design realizes that carbon brush abrasion is soon used up, can timely be replaced automatically, alleviate carbon each time
Brush requires the workload for manually replacing carbon brush after using up, improve work efficiency, reduce labour, in addition, being also prevented from carbon
It brushes and damages motor because staff replaces carbon brush not in time after using up.
(2) a kind of carbon brush of the invention connects power supply machine, and sleeve inner, which slides axially, is provided with preceding pushing block and rear pushing block
Between the two by tension spring, and it is provided with limited block on rear pushing block, which can be in the limiting slot in sleeve lateral wall
It is slided；When replacement carbon brush automatically, carbon brush holder rotation, spare carbon brush goes to carbon brush and stretches out hole, due to not having switching control
The obstruction of ring, under the action of compression spring, the limited block after promotion on pushing block is slided carbon brush along limiting slot, and then is pushed away
Dynamic carbon brush stretches out in hole from carbon brush to be stretched out, and by the mating reaction of limiting slot and limited block, the carbon brush of pushing block clamping is moved before preventing
It shakes during dynamic, in addition, the design of plug and jack, prevents preceding pushing block from rocking when acting on rear pushing block, into one
Step improves stability when carbon brush movement.
(3) a kind of carbon brush of the invention connects power supply machine, and a side of the front end face of boss passes through slope surface and switching control
The lateral surface of ring is connected, and the medial surface of switching control ring is connected by guide surface with the input end transition that carbon brush stretches out hole, works as carbon
It when the rear end of brush is flushed with the front end face of boss, rotates, carbon brush can be moved along slope surface, and the limited post on rear pushing block is just
It can be moved along guide surface, until next group of carbon brush is in contact with cyclic annular commutator, structure design is simple, ingenious, passes through
The structures such as hole are stretched out with wind spring, switching control ring and carbon brush to cooperate, and are convenient for motor self-changeable carbon brush.
(4) a kind of carbon brush of the invention connects power supply machine, and the thickness E of boss is that the lateral surface of switching control ring is changed with ring-type
To the 1/k of distance between device medial surface, k value is 2-5；If k value is excessive, i.e. the thickness of boss is too thin, will lead to carbon brush more
When changing, the front end of carbon brush cannot be completely disengaged with cyclic annular commutator, and multipair carbon brush is caused to contact simultaneously with cyclic annular commutator, be influenced
Motor work, or even short circuit can be generated, damage motor；If k value is too small, i.e. the thickness of boss is too thick, will lead to the rear end of carbon brush
When sliding into lateral surface along slope surface on front end face, biggish vibration is generated, influences the stability of structure.
(5) a kind of carbon brush of the invention connects power supply machine, and the angle a between slope surface and the front end face of boss is 20 ° -45 °；
The a the big, and then slope surface is steeper, and the rear end of carbon brush generates biggish vibration when sliding into lateral surface along slope surface on front end face；A is got over
Small, it is too long to will lead to slope surface length, delays to reach lateral surface when the rear end of carbon brush is slided along slope surface, to be unfavorable for
The replacement of carbon brush.
(6) a kind of carbon brush of the invention connects power supply machine, the sidewall width D of boss1The distance between two neighboring opening
The ratio between be 1/j, j value be j > 1；To guarantee the sidewall width D of boss1Less than the distance between two neighboring opening, prevent
Next adjacent carbon brush has been replaced before carbon brush rear end is slided from front end face, i.e., two carbon brush contact ring-type simultaneously and change
To device, motor work is influenced, or even will cause short circuit and damage motor.
(7) a kind of carbon brush of the invention connects power supply machine, plug length L1, jack depth L2With the limit of tension spring
Elongation L3The vertical range h being all larger than between the upper and lower ends of guide surface；If L1And L2Less than h, then it will lead to carbon brush and replacing
When, plug and jack are detached from, and influence motor work；If L3Less than h, then it will lead to pulling force bullet when limited post is moved along guide surface
Spring hinders limited post to move along guide surface, or even can occur to break tension spring, damages motor.
(8) a kind of carbon brush of the invention connects power supply machine, the carbon brush of sleeve inner at work, the limit of the sleeve inner
The distance between column and preceding pushing block bottom surface L4It is m with the ratio between switching control ring wall thickness, m value is 0.15-0.5, and L4> E；M mistake
Greatly, when will lead to switching carbon brush, limited post and guide face contacts it is too late so as to cause limited post along guide surface move it is vertical away from
It is small from too, so that pulling force suffered by tension spring is too small to be caused brush to separate with cyclic annular commutator to be not thorough；M is too small to will appear phase
When anti-effect, i.e. switching carbon brush, limited post and the too early of guide face contacts are hung down so as to cause limited post along what guide surface moved
Straight distance is too big, too big so as to cause pulling force suffered by tension spring, increases the rotational resistance of sleeve, interferes the replacement of carbon brush.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure that a kind of carbon brush of the invention connects power supply machine；
Fig. 2 is the external structure schematic diagram that a kind of carbon brush of the invention connects power supply machine；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is the sectional view of the clamping unit and switch unit in the present invention；
Fig. 5 is the structural schematic diagram inside middle sleeve of the present invention；
Fig. 6 is the sectional view of Fig. 5；
Fig. 7 is the structural schematic diagram of clamping unit in the present invention；
Fig. 8 is the sectional view in Fig. 7 at A-A；
Fig. 9 is the structural schematic diagram of the switching control ring in the present invention；
Figure 10 is the top view of Fig. 9；
Figure 11 is the structural schematic diagram of the binding post in the present invention；
Figure 12 is the tabletting structure schematic diagram in the present invention.
Label declaration in schematic diagram:
100, casing ontology；110, stator；120, rotor；130, output shaft；
200, clamping unit；210, carbon brush holder；211, sleeve；2111, limiting slot；2112, electric hole is connect；2113, carbon brush；
212, support ring；213, preceding pushing block；2131, brush holder；2132, plug；2133, connector；2134, tension spring；214, after
Pushing block；2141, limited post；2142, limited block；2143, jack；215 openings；216, compression spring；220, rear end cap；221, lead to
Hole；222, hollow column；223, wind spring；224, mounting hole；225, tabletting hole；
300, switch unit；310, switching control ring；311, carbon brush stretches out hole；3111, boss；3112, slope surface；3113,
Front end face；3114, inner wall；312, medial surface；313, lateral surface；314, annular groove；315, guide surface；316, fixed plate；
320, cyclic annular commutator；
400, conductive unit；410, conductive rod；411, electric contact；420, tabletting；430, binding post.
Specific embodiment
To further appreciate that the contents of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
A kind of carbon brush of the present embodiment connects power supply machine, such as Fig. 1, including casing ontology 100, clamping unit 200, switch unit
300 and conductive unit 400, wherein stator 110 is provided in casing ontology 100, the inside rotation of stator 110 is provided with rotor
120, rotor 120 is mounted on output shaft 130；In conjunction with Fig. 1, Fig. 3, Fig. 4 and Fig. 7, the clamping unit 200 in the present embodiment includes
Rear end cap 220 and carbon brush holder 210, rear end cap 220 are fixedly installed in one end of casing ontology 100；Carbon brush holder 210 is located at rear end cap
Between 220 and rotor 120, and it is set on output shaft 130.The carbon brush holder 210 includes two pairs with upper bush 211,211 edge of sleeve
212 lateral wall of support ring is equally circumferentially spaced, and 212 one end of support ring is provided with opening 215, sleeve in sleeve 211
211 inside are equipped with carbon brush 2113, and carbon brush 2113 can stretch at the opening 215.
Wind spring 223 is installed, 223 one end of wind spring is connected with support ring 212, and the other end is stood with hollow on the inside of support ring 212
Column 222 is connected, which is fixedly connected with rear end cap 220, i.e., wind spring 223 is connected on rear end cap 220.In addition, defeated
Shaft 130 passes through the through-hole 221 among hollow column 222.
Wind spring 223 in the present embodiment during installation, makes wind spring 223 have certain elasticity, i.e. wind spring 223 is able to drive
Entire carbon brush holder 210 is rotated.
As a preference, the present embodiment middle sleeve 211, which axially inside slides, is provided with preceding pushing block 213 and rear pushing block
214, one end of opening 215 is arranged in preceding pushing block 213, and the brush holder of clamping carbon brush 2113 is provided on preceding pushing block 213
2131.It is connected by tension spring 2134 with rear pushing block 214 in the rear end of preceding pushing block 213, and is equipped in tension spring 2134
Connector 2133, the rear end of pushing block 213 before which is fixed on.Preceding pushing block 213 is arranged towards the side of rear pushing block 214
There is plug 2132, and offers the jack 2143 being slidably matched with plug 2132 on rear pushing block 214.Pusher in the present embodiment
Block 214 on the outside of compression spring 216 and support ring 212 by being connected.For the ease of preceding pushing block 213 and rear pushing block 214 in sleeve 211
Inside is moved, and limited block 2142 is provided on rear pushing block 214, is opened up on 211 inner sidewall of sleeve sliding with limited block 2142
The limiting slot 2111 of dynamic cooperation pushes preceding pushing block 213 and rear pushing block 214 mobile, and then band under the action of compression spring 216
Dynamic carbon brush 2113 is mobile.
By the mating reaction of limiting slot 2111 and limited block 2142, the carbon brush 2113 that pushing block 213 clamps before preventing is mobile
It shakes in the process, in addition, the design of plug 2132 and jack 2143, hair when preventing preceding pushing block 213 from acting on rear pushing block 214
Life is rocked, and the stability when movement of carbon brush 2113 is further improved.
In addition, the conductive unit 400 in the present embodiment is mounted on rear end cap 220, as shown in Fig. 2, the conductive unit 400
Including conductive rod 410, electric contact 411, tabletting 420 and binding post 430, the wherein structure of tabletting 420 and binding post 430 such as Figure 11
With shown in Figure 12, binding post 430 is arranged on rear end cap 220, and binding post 430 is equipped with to match with 220 tabletting hole 225 of rear end cap
Binding post 430 is fixed on rear end cap 220 by the pin of conjunction.In addition, offer wiring hole on binding post 430, it is convenient for and motor
Outside line is connected.As shown in figure 8, its 420 one end of tabletting is connected with binding post 430, other end resilient abutment is in electric contact 411
On, which is fixed at 212 top of support ring.Conductive rod 410 is arranged along 211 length direction of sleeve in sleeve
211 top, and 410 one end of conductive rod is connected with electric contact 411, what the other end opened up at the top of sleeve 211 connects electric hole
2112 slide electrical contact with the carbon brush 2113 inside sleeve 211.The conductive unit 400 will be connected inside outside motor and motor
It is logical, guarantee motor work.Electric contact 411, conductive rod 410 are identical with the number of sleeve 211 in the present embodiment.
In conjunction with Fig. 1, Fig. 4, Fig. 9 and Figure 10, the switch unit 300 in the present embodiment includes switching control ring 310 and ring-type
Commutator 320, three fixation holes that 310 ring of switching control ring is equipped with pass through the fixation hole and rear end cap by fixing piece
220 are fixedly connected, and switching control ring 310 is arranged between carbon brush holder 210 and cyclic annular commutator 320, in order to make carbon brush
2113 contact with cyclic annular commutator 320, and a pair of of carbon brush is offered on switching control ring 310 and stretches out hole 311, and carbon brush 2113 is from carbon
Brush stretches out hole 311 and stretches out, and provides tensile force by the compression spring 216 of 2113 rear end of carbon brush, make 2113 front end of carbon brush always with
Cyclic annular commutator 320 contacts, and guarantees the normal operation of motor.As a preference, two carbon brush in the present embodiment stretch out hole
311 is symmetrical about 310 axis centre of control ring is changed.
In conjunction with Fig. 4, Fig. 9 and Figure 11, the lateral surface 313 of the switching control ring 310 in the present embodiment is equipped with boss 3111, should
Boss 3111 is located at the outlet end that carbon brush stretches out hole 311, and a side of the front end face 3113 of boss 3111 passes through slope surface 3112
It is connected with lateral surface 313；The inner wall 3114 that carbon brush stretches out the input end in hole 311 passes through guide surface 315 and switching control ring 310
312 transition of medial surface be connected, the guide surface 315 be arc surface.In order to be matched with guide surface 315, in rear 214 side of pushing block
It is equipped with limited post 2141, which can move along guide surface 315.
When the upper end of 310 side wall of switching control ring is arranged in carbon brush stretching hole 311 on switching control ring 310, in order to protect
Card limited post 2141 is in contact with guide surface 315, then limited post 2141 is located at the upper top surface of rear pushing block 214；When switching control ring
When the lower end of 310 side wall of switching control ring is arranged in carbon brush stretching hole 311 on 310, then limited post 2141 is located at rear pushing block 214
Upper bottom surface.
As a preference, being divided into switching control ring and incision there are two the switching control ring 310 in the present embodiment sets
Control ring is changed, and there are gaps, i.e. annular groove 314 between two rings.Carbon brush stretches out 311 half of hole and is located at upper switching control ring
The lower end of side wall, the other half is located at the upper end of lower switching control ring side wall, and the two collectively constitutes carbon brush and stretches out hole 311；On in addition,
Switching control ring and lower switching control ring are designed with guide surface 315, in order to be used cooperatively with guide surface 315, push up on rear pushing block 214
Limited post 2141 is designed on face and bottom surface.It is stretched out in the present embodiment to guarantee that carbon brush 2113 only stretches out hole 311 from carbon brush, and
It cannot be stretched out from annular groove 314, the thickness of carbon brush 2113 is made to stretch out the height and annular groove 314 in the hole in hole 311 in carbon brush
Width between；It is stretched out in addition, stretching out hole 311 along carbon brush in order to not influence carbon brush 2113, the width of annular groove 314 is greater than
The thickness of preceding pushing block 213 and rear pushing block 214；Limited post 2141 after in the present embodiment on the upper top surface and bottom surface of pushing block 214
Between maximum distance carbon brush stretch out hole 311 the height in hole and the width of annular groove 314 between, i.e., carbon brush 2113 is in carbon
Brush stretches out in hole 311 when moving, and limited post 2141 will not hinder carbon brush 2113 to contact with ring-type commutator 320, when rotating
When, guarantee that limited post 2141 is pressed against the medial surface of switching control ring 310 always, carbon brush 2113 is changed with ring-type after not will lead to abrasion
It is contacted to device 320, influences motor work.
In the present embodiment when the rear end of carbon brush 2113 is flushed with the front end face 3113 of boss 3111, rotate, carbon brush
2113 can move along slope surface 3112, and the limited post 2141 on rear pushing block 214 on top surface and bottom surface just can be along guiding
Face 315 is mobile, until next group of carbon brush 2113 is in contact with cyclic annular commutator 320, the structure design it is simple, ingenious, by with
Wind spring 223, switching control ring 310 and carbon brush stretch out the structures such as hole 311 and cooperate, and are convenient for motor self-changeable carbon brush 2113.
In addition, upper switching control ring is fixedly connected on rear end cap 220 by three fixation holes on ring, lower switching control
It is connected with two fixed plates 316 on ring, and two fixed plates 316 are both facing to the inside of lower switching control ring, as shown in Figure 9.For
Lower switching control ring is connected in rear end cap 220, offers hole in fixed plate 316 in the present embodiment, and in hollow column 222
Lower end offer mounting hole 224, screw is each passed through hole and mounting hole 224 in fixed plate 316, and fixed plate 316 is fixed
It is connected on hollow column 222, i.e., lower switching control ring is connected with rear end cap 220.
In conjunction with Figure 10, the thickness E of boss 3111 is that the lateral surface 313 of switching control ring 310 is changed with ring-type in the present embodiment
To the 1/k of distance between 320 medial surface of device, k value is 2-5；If k value is excessive, i.e. the thickness of boss 3111 is too thin, will lead to carbon
In replacement, the front end of carbon brush 2113 cannot completely disengage brush 2113 with cyclic annular commutator 320, lead to multipair carbon brush 2113 simultaneously
It is contacted with cyclic annular commutator 320, influences motor work, or even short circuit can be generated, damage motor；If k value is too small, i.e. boss 3111
Thickness it is too thick, will lead to the rear end of carbon brush 2113 when sliding into lateral surface 313 along slope surface 3112 on front end face 3113, produce
Raw biggish vibration, influences the stability of structure.
In conjunction with Figure 10, the angle a in the present embodiment between slope surface 3112 and the front end face 3113 of boss 3111 is 20 °-
45°；The a the big, and then slope surface 3112 is steeper, and the rear end of carbon brush 2113 slides into lateral surface along slope surface 3112 on front end face 3113
When 313, biggish vibration is generated；A is smaller, will lead to that 3112 length of slope surface is too long, and the rear end of carbon brush 2113 is along slope surface 3112
It delays to reach lateral surface 313 when sliding, to be unfavorable for the replacement of carbon brush 2113.
In conjunction with Figure 10, the sidewall width D of boss 3111 in the present embodiment1The ratio of distances constant between two neighboring opening 215
For 1/j, j value is j > 1；To guarantee the sidewall width D of boss 31111Less than two neighboring opening the distance between 215,
Next adjacent carbon brush 2113 has been replaced before preventing 2113 rear end of carbon brush from sliding from front end face 3113, i.e. two carbon
Brush 2113 contacts cyclic annular commutator 320 simultaneously, influences motor work, or even will cause short circuit and damage motor.
In conjunction with Fig. 6 and Figure 10,2132 length L of plug in the present embodiment1, jack 2143 depth L2With tension spring 2134
Ultimate elongation amount L3The vertical range h being all larger than between the upper and lower ends of guide surface 315；If L1And L2Less than h, then will lead to
In replacement, plug 2132 and jack 2143 are detached from carbon brush 2113, influence motor work；If L3Less than h, then it will lead to limited post
2141 tension springs 2134 when moving along guide surface 315 hinder limited post 2141 to move along guide surface 315, or even can occur
Tension spring 2134 is broken, motor is damaged.
Limit in conjunction with Fig. 5 and Figure 10, when the carbon brush 2113 inside the present embodiment middle sleeve 211 works, inside the sleeve 211
Position the distance between column 2141 and 213 bottom surface of preceding pushing block L4It is m with the ratio between 310 wall thickness of switching control ring, m value is 0.15-
0.5, and L4> E；M is excessive, will lead to switching carbon brush 2113 when, limited post 2141 contacted with guide surface 315 it is too late so as to cause
Limited post 2141 is too small along the vertical range that guide surface 315 moves, so that pulling force suffered by tension spring 2134 is too small to lead to electricity
Brush is separated with cyclic annular commutator 320 and is not thorough；M is too small to will appear reverse effect, that is, when switching carbon brush 2113, limited post 2141
The too early vertical range moved so as to cause limited post 2141 along guide surface 315 contacted with guide surface 315 is too big, so as to cause
Pulling force suffered by tension spring 2134 is too big, increases the rotational resistance of sleeve 211, interferes the replacement of carbon brush 2113.
Connect the carbon brush replacing options of power supply machine, process using a kind of carbon brush of the present embodiment are as follows: motor at work, wherein
A pair of of carbon brush 2113 stretches out hole 311 from carbon brush and stretches out, under the action of compression spring 216,2113 front end of carbon brush and cyclic annular commutation
Device 320 is in contact, which is located at working condition, other carbon brush 2113 are since front end is against on switching control ring 310, nothing
Method is stretched out to be cooperated with cyclic annular commutator 320, as spare inside switching control ring 310.
During the work time, carbon brush 2113 is constantly worn, and is constantly moved forward under the action of compression spring 216, is worked as carbon
When brush 2113 wears up to the rear end of carbon brush 2113 and flushes with the front end face 3113 of boss 3111, i.e. carbon brush 2113 is from carbon brush stretching hole
Deviate from 311, is no longer influenced by the blocking that carbon brush stretches out hole 311.Further, since the width of annular groove 314 is greater than preceding pushing block 213
With the thickness of rear pushing block 214, then preceding pushing block 213 can enter in annular groove 314, under the twisting force of wind spring 223, carbon brush
Frame 210 rotates, and carbon brush 2113 is driven to rotate along switching control ring 310.2141 edge of limited post in rotation, on rear pushing block 214
Guide surface 315 be moved to the medial surface 312 of switching control ring 310, meanwhile, the rear end of carbon brush 2113 is from the front end of boss 3111
Face 3113 is moved to the lateral surface 313 of switching control ring 310 along slope surface 3112, prevents the carbon brush 2113 from commutating again with ring-type
Device 320 contacts.At the same time, spare carbon brush 2113 turns to carbon brush stretching hole 311, due to not having the resistance of switching control ring 310
Hinder, under the action of compression spring 216, the limited block 2142 after promotion on pushing block 214 is slided along limiting slot 2111, is made
Carbon brush 2113 stretches out hole 311 from carbon brush and stretches out, and then is in contact with cyclic annular commutator 320, guarantees that motor continues working.
It is worth noting that carbon brush 2113 in running order in the present embodiment, pushing block 214 and 212 phase of support ring thereafter
Compression spring 216 even is in compressive state, constantly pushes carbon brush 2113 to be in contact with cyclic annular commutator 320, guarantees its work.
In addition, the carbon brush 2113 after replacement is between switching control ring 310 and cyclic annular commutator 320, due to boss 3111, pulling force bullet
The structures such as spring 2134 and limited post 2141 design, ensure that replacement after carbon brush 2113 will not be contacted with cyclic annular commutator 320 and
Influence motor work.
The clamping unit 200 of the present embodiment and the structure design of switch unit 300 realize that 2113 quick abrasion of carbon brush will be used up
When, it can timely be replaced automatically, alleviate carbon brush 2113 each time and require manually to replace carbon brush 2113 after using up
Workload improves work efficiency, and reduces labour, in addition, being also prevented from after carbon brush 2113 is used up because of staff not in time
It replaces carbon brush 2113 and damages motor.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (10)
1. a kind of carbon brush connects power supply machine, including casing ontology (100), stator (110), stator are provided in casing ontology (100)
(110) inside rotation is provided with rotor (120), and rotor (120) is mounted on output shaft (130), it is characterised in that: further includes
Clamping unit (200) and switch unit (300)；
Clamping unit (200) includes rear end cap (220) and carbon brush holder (210), and the rear end cap (220) is fixedly installed in casing
One end of ontology (100)；The carbon brush holder (210) includes two pairs with upper bush (211), and sleeve (211) is along support ring (212)
Lateral wall is equally circumferentially spaced, and support ring (212) one end is provided with opening (215), sleeve in sleeve (211)
(211) internal to be equipped with carbon brush (2113), which is clamped by pushing block (213) preceding in sleeve (211), carbon brush (2113) energy
It stretches at the opening (215)；It is equipped with wind spring (223) on the inside of the support ring (212), support ring (212) passes through
Wind spring (223) is connected on rear end cap (220)；
Switch unit (300) includes switching control ring (310) and cyclic annular commutator (320), the switching control ring (310) with
Rear end cap (220) is fixedly connected, and is arranged between carbon brush holder (210) and cyclic annular commutator (320), the switching control ring
(310) a pair of of carbon brush is offered on and stretches out hole (311), and carbon brush (2113) can stretch out hole (311) stretching from the carbon brush and change with ring-type
It is contacted to device (320)；After carbon brush (2113), which wears up to it, stretches out hole (311) stretching from carbon brush, preceding pushing block (213) edge is cut
Change control ring (310) rotation.
2. a kind of carbon brush according to claim 1 connects power supply machine, it is characterised in that: further include conductive unit (400), this is led
Electric unit (400) includes conductive rod (410), electric contact (411), tabletting (420) and binding post (430), the binding post
(430) it is arranged on rear end cap (220)；One end of the tabletting (420) is connected with binding post (430), other end resilient abutment
On electric contact (411), which is fixed at the top of support ring (212)；The conductive rod (410) is along sleeve
(211) it is arranged on length direction on the top of sleeve (211), and conductive rod (410) one end is connected with electric contact (411), it is another
Electric hole (2112) and sleeve (211) internal carbon brush (2113) sliding that connects opened up at the top of sleeve (211) is held to be in electrical contact.
3. a kind of carbon brush according to claim 2 connects power supply machine, it is characterised in that: preceding pushing block (213) front end is logical
Cross brush holder (2131) clamping carbon brush (2113)；Preceding pushing block (213) rear end passes through in tension spring (2134) and sleeve (211)
Rear pushing block (214) be connected；The rear pushing block (214) is connected by compression spring (216) with support ring (212), and after this
Top surface or/and bottom surface are equipped with limited post (2141) on pushing block (214)；And limited block is provided on rear pushing block (214)
(2142), sleeve (211) side wall opens up the limiting slot (2111) being slidably matched with limited block (2142).
4. a kind of carbon brush according to claim 1 or 3 connects power supply machine, it is characterised in that: the carbon brush stretches out hole (311)
Outlet end be equipped with boss (3111), and a side of the front end face (3113) of boss (3111) by slope surface (3112) and switching
The lateral surface (313) of control ring (310) is connected；The inner wall (3114) that the carbon brush stretches out the input end of hole (311) passes through
Guide surface (315) is connected with medial surface (312) transition of switching control ring (310), which is arc surface.
5. a kind of carbon brush according to claim 4 connects power supply machine, it is characterised in that: the thickness E of the boss (3111)
The 1/k of distance between the lateral surface (313) and cyclic annular commutator (320) medial surface of switching control ring (310), k value is 2-
5。
6. a kind of carbon brush according to claim 5 connects power supply machine, it is characterised in that: the slope surface (3112) and boss
(3111) the angle a between front end face (3113) is 20 ° -45 °.
7. a kind of carbon brush according to claim 6 connects power supply machine, it is characterised in that: the side wall of the boss (3111) is wide
Spend D1Ratio of distances constant is 1/j between two neighboring opening (215), and j value is j > 1.
8. a kind of carbon brush according to claim 7 connects power supply machine, it is characterised in that: described plug (2132) the length L1, insert
The depth L in hole (2143)2With the ultimate elongation amount L of tension spring (2134)3It is all larger than between the upper and lower ends of guide surface (315)
Vertical range h.
9. a kind of carbon brush according to claim 8 connects power supply machine, it is characterised in that: when the internal carbon brush of sleeve (211)
(2113) at work, the distance between the internal limited post (2141) of the sleeve (211) and preceding pushing block (213) bottom surface L4With cut
Changing the ratio between control ring (310) wall thickness is m, and m value is 0.15-0.5, and L4> E.
10. the carbon brush replacing options that a kind of carbon brush connects power supply machine, it is characterised in that: motor at work, one pair of them carbon brush
(2113) it stretches out hole (311) stretching from carbon brush to be in contact with cyclic annular commutator (320), other carbon brush (2113) are in switching control ring
(310) internal as spare；The rear end of carbon brush (2113) and the front end face of boss (3111) are worn up to when carbon brush (2113)
(3113) when flushing, under the twisting force of wind spring (223), carbon brush holder (210) rotation, in rotation, rear pushing block (214) are driven
On limited post (2141) medial surfaces (312) of switching control ring (310) is moved to along guide surface (315), meanwhile, carbon brush
(2113) rear end is moved to the outer of switching control ring (310) along slope surface (3112) from the front end face (3113) of boss (3111)
Side (313)；Spare carbon brush (2113), which turns to carbon brush, which stretches out hole (311), makes carbon brush under the action of compression spring (216)
(2113) hole (311) stretching is stretched out from carbon brush and then be in contact with cyclic annular commutator (320), guarantee that motor continues working.
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| CN201811342476.8A CN109301971B (en) | 2018-11-12 | 2018-11-12 | Carbon brush continuous power supply machine and carbon brush replacement method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342476.8A CN109301971B (en) | 2018-11-12 | 2018-11-12 | Carbon brush continuous power supply machine and carbon brush replacement method thereof |
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| CN109301971A true CN109301971A (en) | 2019-02-01 |
| CN109301971B CN109301971B (en) | 2023-10-27 |
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| CN111613946A (en) * | 2020-06-03 | 2020-09-01 | 武义涵歌电子有限公司 | Motor brush protection replacement equipment |
| CN112038855A (en) * | 2020-08-26 | 2020-12-04 | 浙江西菱股份有限公司 | Brush device and motor |
| CN112202272A (en) * | 2020-09-18 | 2021-01-08 | 曹瑞 | Brush assembly, brush installation assembly and motor |
| CN114337128A (en) * | 2021-12-21 | 2022-04-12 | 惠州龙德科技股份有限公司 | Carbon brush motor pre-running-in device and running-in method thereof |
| CN114496474A (en) * | 2022-02-14 | 2022-05-13 | 衢州三源汇能电子有限公司 | High-safety environment-friendly energy-saving voltage stabilizer |
| CN116094262A (en) * | 2023-04-03 | 2023-05-09 | 四川富生汽车零部件有限公司 | High-stability and long-service-life brush direct current motor |
| CN116470685A (en) * | 2023-04-19 | 2023-07-21 | 江苏恒康机电有限公司 | Industrial motor convenient for replacing carbon brush and replacing method thereof |
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| CN116094262B (en) * | 2023-04-03 | 2023-06-16 | 四川富生汽车零部件有限公司 | High-stability and long-service-life brush direct current motor |
| CN116470685A (en) * | 2023-04-19 | 2023-07-21 | 江苏恒康机电有限公司 | Industrial motor convenient for replacing carbon brush and replacing method thereof |
| CN116470685B (en) * | 2023-04-19 | 2024-02-02 | 江苏恒康机电有限公司 | Industrial motor convenient for replacing carbon brush and replacing method thereof |
| CN116534521A (en) * | 2023-07-05 | 2023-08-04 | 苏州英特吉医疗设备有限公司 | Conductive conveying equipment and working method thereof |
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