CN207165892U - A kind of motor reversing device - Google Patents
A kind of motor reversing device Download PDFInfo
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- CN207165892U CN207165892U CN201721140377.2U CN201721140377U CN207165892U CN 207165892 U CN207165892 U CN 207165892U CN 201721140377 U CN201721140377 U CN 201721140377U CN 207165892 U CN207165892 U CN 207165892U
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- metal hoop
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Abstract
The utility model discloses a kind of motor reversing device, particularly a kind of large-sized DC motor reversing arrangement, belong to electric machine technical field；The device includes being installed on the commutator segment on rotor with rise piece by sleeve, the commutator segment both ends are equipped with pressing ring mechanism, insulating mechanism is provided between commutator segment and pressing ring mechanism to realize insulation effect, the metal hoop with commutator segment insulation is cased with commutator segment, using metal hoop to strengthen the intensity of commutator segment；The utility model solves commutator segment insufficient strength in large-scale dc motor reversing arrangement, can not be up to standard the problem of, by installing metal hoop additional, and combine the tightness that interference fit fully improves commutator segment assembling, increase the intensity of commutator segment dove tail simultaneously, to improve the practicality of commutator segment, applying working condition requirement is reduced, meets commutator segment in all operating modes（Including specified, overlond running）When intensity requirement.
Description
Technical field
A kind of motor reversing device is the utility model is related to, particularly a kind of large-sized DC motor reversing arrangement, is belonged to
Electric machine technical field.
Background technology
Commutator is in order to allowing motor persistently to rotate down a former part on AC permanent magnet series-wound motor.Knot
On structure, it is round that commutator is that several contact chips surround, and connects each tap on rotor respectively, and outside connects two electrodes and is referred to as
Brush contacts, while only contacts two therein.Principle is, after coil is by electric current, understands in the presence of permanent magnet,
By attracting and repulsive force rotates, when it, which goes to, balance with magnet, led to electric line originally and relatively correspond to contact on commutator
Just separated with brush, and brush is connected to corresponding to that group of coil for meeting and producing motive force on contact, is so ceaselessly weighed
Go down again, dc motor is just turned over.
Large-sized DC motor, because of its smooth speed adjusting performance, excellent overload capacity and adapt to frequent rotating etc.
Characteristic, it is widely used in the fields such as metallurgical mine, steel mill's steel rolling.
For middle-size and small-size direct current generator, usual commutator is also smaller, only can be by commutator segment conjunction by front and rear trim ring
It is fixed, and meet to run intensity requirement, but for large-sized DC motor, especially commutator brush track diameter more than 2 meters, armature external diameter
Motor more than 3 meters, only forward rear trim ring compress the intensity requirement for being not enough to support commutator segment assembling, are mainly manifested in commutation
Intensity deficiency at piece dove tail., can be in commutator outer ring hot jacket metal hoop for problems, commutator segment dove during ensuring operation
Tail intensity, but metal hoop is directly contacted with commutator face, and commutator segment can be made to discharge over the ground indirectly.Therefore metal hoop is necessary
Insulation is good and can facilitate, accurately be installed to commutator face.
The content of the invention
Goal of the invention of the present utility model is：For above-mentioned problem, there is provided one kind can be such that commutator both met
Intensity requirement, but it is simple and reliable and simple in construction, improve large-scale dc motor commutation dress of the commutator segment to the practicality of operating mode
Put.
The technical solution adopted in the utility model is as follows：
A kind of motor reversing device, including the commutator segment on rotor with rise piece is installed on by sleeve, this is changed
Pressing ring mechanism is equipped with to piece both ends, insulating mechanism is provided between commutator segment and pressing ring mechanism to realize insulation effect, is changed
The metal hoop with commutator segment insulation is cased with to piece, using metal hoop to strengthen the intensity of commutator segment.
In the utility model, strengthen the intensity at large-scale dc motor commutator segment dove tail using metal hoop, make the commutation
Device is installed on the intensity of dove tail after rotor to reach requirement desired value, meanwhile, commutate chip architecture during high speed selects
It is more stable.Due to using metal hoop, and in actual applications, it is necessary to avoid discharging over the ground indirectly, the utility model
Independent main body is formed between metal to realize using insulating materials, the effective strength problem for solving reversing arrangement and is put indirectly
The problem of electric.
A kind of motor reversing device of the present utility model, the pressing ring mechanism include preceding trim ring and rear trim ring, and sleeve is set
Between preceding trim ring and rear trim ring and on the inside of commutator segment, the preceding trim ring, rear trim ring, commutator segment and sleeve pass through multiple first
Bolt connection is integrated.The mode that the design of which uses screw rod to connect specially matches somebody with somebody relation to realize, meanwhile, this is simple in construction,
It is easy to operation.
Further, first bolt is stud, wherein one end and rear trim ring by screw thread directly conjunction, it is another
End fastens through preceding trim ring and by nut conjunction.In large-scale dc motor, specially matched somebody with somebody using reversing arrangement after improving directly again
The difficulty height for being unfavorable for installing on rotor and installing is assemblied in, assembly precision is low, and which can effectively solve motor dress
With the problem of.
Further, first bolt is distributed for circumference array.
A kind of motor reversing device of the present utility model, the metal hoop are installed on close to the commutator segment where rise piece
On, the insulation inner ring for insulation is provided between the metal hoop and commutator segment, the metal hoop is close to the side of rise piece
Rear dead ring is provided with, side of the metal hoop away from rise piece is provided with preceding dead ring.The design method can be effective
Solve the problems, such as to produce indirect discharge between metal hoop and commutator segment or rise piece, ensure that reinforcement commutator segment dove tail is strong
Ensure the effect of reversing arrangement while spending, with reference to by metal hoop design in the side of rise piece so that brush and commutation
The effective contact surface increase of piece.
Further, the insulation inner ring, which is coated and is heating and curing using insulating materials, is made, and close to the end of rise piece
Portion is machined with first seam spacing for metal hoop, and second spacing for the inner ring that insulate is provided with the commutator segment and is stopped
Mouthful.In assembling process, consider not only and once assembled by bottom up, meanwhile, beneficial to specially matching somebody with somebody for metal hoop, make metal hoop
Maintained a certain distance with rise piece, and the insulation inner ring intensity and insulation effect of the structure are good.
Further, the metal hoop and insulation inner ring are interference fit, and pass through the first limiting stand and metal hoop
Dead ring after assembling, preceding dead ring is by multiple second bolts assemblies on metal hoop.Which can further be fastened and changed
Assembling to piece, be advantageous to the design of metal hoop and dead ring in structure design.
Further, second bolt is distributed for circumference array.
Further, the metal hoop, insulation inner ring, preceding dead ring, the assembling gap of rear dead ring and the second bolt
Outer surface apply envelope coating for sealing off gap and isolated part and air.Dielectric properties are good, and deformation retract rate is small, product
Good stability of the dimension, hardness is high, and pliability is preferable.
Further, the preceding dead ring and/or rear dead ring using glass-cloth board, micarex compacting or shape.
Further, the preceding dead ring and/or rear dead ring, which are integrated, is made or splitted structure.
A kind of dc motor, including above-mentioned motor reversing device.
A kind of processing method of motor reversing device, comprises the following steps：
A, by commutator segment, sleeve and pressing ring mechanism assembled formation；
B, commutator segment is being processed close to the position of rise piece, is making to be formed second with assembling limit function on commutator segment and stop
Mouthful；
C, coat one fixed width on away from the commutator segment where rise piece one end along the second seam and thickness is used for absolutely
The insulating materials of edge, heat-insulating material, and curing molding, the insulating materials of curing molding is reprocessed, makes insulation material
Material is formed with the insulation inner ring for the first spacing seam；
D, dead ring after assembling, rear dead ring is entered along end of the commutator segment away from rise piece to rise piece and is assembled to absolutely
First stop portion of edge inner ring, positioning datum is used as using the first seam；
E, metal hoop is heated to certain temperature, and metal hoop is entered along end of the commutator segment away from rise piece to rise piece
Enter and rear end face is bonded with rear dead ring, fill insulation inner ring, rear dead ring and metal hoop by interference fit after cooling
With shaping；
F, dead ring before assembling, preceding dead ring is entered along end of the commutator segment away from rise piece to rise piece and is assembled to gold
Category garter spring front end face is simultaneously bonded, and conjunction is fastened by the second bolt.
Further, in addition to step g, by metal hoop, insulation inner ring, preceding dead ring and rear dead ring assembling gap
And second bolt outer surface apply envelope coating for sealing off gap and isolated part and air.The design method mainly reaches
The effect of sealing.
Further, in the step a, pressing ring mechanism includes preceding trim ring and rear trim ring, will wherein one using stud
End, directly conjunction, is sequentially loaded into sleeve and preceding trim ring, the other end of stud runs through preceding trim ring, utilizes nut with rear trim ring
Closing, pressing ring mechanism, sleeve and commutator segment are assembled and shaped, and pressing ring mechanism is insulated with commutator segment using insulating mechanism.
Further, in the step e, metal hoop heating-up temperature is not higher than 150 DEG C, to ensure to insulate in assembling process
Material is not affected by high temperatures deformation.
Further, in the step e, the tight amount being interference fitted between metal hoop and interior insulation circle is 1.5-3mm.
Further, in the step e and step f, metal hoop processing is "T"-shaped in section, and rear dead ring passes through
The rear end face flute profile of first seam and metal hoop is assembled, and preceding dead ring is assemblied in the flute profile of the front end face of metal hoop.
Further, in the step e and step f, metal hoop assembles rear exposed position and applies three-proofing coating to improve
The physical life of metal hoop, avoid getting rusty.
Further, in the step e and step f, preceding dead ring and/or rear dead ring use and are made into integration or divide valve
Structure.
Further, in the step e and step f, during the splitted structure that preceding dead ring and/or rear dead ring use, adopt
Valve will be divided to be bonded with glue, then be assembled.The structure that a kind of reversing arrangement of the present utility model uses is more ingenious in design,
Be assemblied in using the control of tight amount and temperature with realizing that metal hoop is firm on commutator segment, in the design process, metal hoop with
The distance between rise piece needs to meet creep age distance, and the distance needs to be configured according to the actual requirements in the design process.
And in the present apparatus, large-scale dc motor is mainly used in, therefore, commutation chip architecture is big, dove stern construction generally be present, so as to not
Commutator segment is described in detail, designing points of the present utility model focus on to be the strength problem for solving commutator segment.And in the design
In, on the one hand it is to be directed to commutator segment intensity, is on the other hand to solve metal hoop and reversing arrangement using specific design structure
The problem of indirect discharge, it is to solve the problems, such as insulation.Using interference fit in order to further fasten commutator segment, interference fit is
METAL HEATING PROCESS is set with again, in order to avoid inner ring high temperature deformation of insulating, the consideration for material mica tape is, it is necessary to strictly control temperature
Degree, and in the design, using being designed to effectively avoid inner ring deformation of insulating less than 150 DEG C, with the change of temperature, mistake
Be full of cooperation effect it is also different, therefore design tight amount it is also different.Under the scope of design of the temperature, designed using tight amount
For 1.5mm-3.0mm, so as to ensure the practical function of whole device after mounting.From the prior art, large-scale dc motor
Reversing arrangement belong to problem in the intensity of practicality and commutator segment, by the design and assembly method, can effectively solve the problem that
The problem of such, and sufficiently affirmed by testing and trying out.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：Of the present utility model one
Kind motor reversing device effectively solves commutator segment insufficient strength in large-scale dc motor reversing arrangement, it is impossible to which up to standard asks
Topic, by installing metal hoop additional, and combine interference fit and fully improve the tightness of commutator segment assembling, while increase commutator segment dove
The intensity of tail, to improve the practicality of commutator segment, applying working condition requirement is reduced, meets commutator segment in all operating modes（Including volume
Fixed, overlond running）When intensity requirement, while the design of the device is more conducive to reversing arrangement process and assemble, due to rigging position
With the design of location structure, efficiency of assembling is effectively lifted, promotes the packaging efficiency of large-scale dc motor, structural relation is clearly bright
, it is simple to operate to understand, in addition, insulating materials need not first be coated on metal hoop outer surface by the device participates in hot jacket, this
When sample avoids hot jacket caused by metal and insulating materials thermal coefficient of expansion difference insulation damages.
Brief description of the drawings
Fig. 1 is cross section structure schematic diagram after the utility model assembling；
Fig. 2 is the structural representation of dead ring after monoblock type of the present utility model；
Fig. 3 is the structural representation of dead ring before monoblock type of the present utility model；
Fig. 4 is the structural representation of the utility model metal hoop；
Fig. 5 is the schematic cross-section at the utility model metal hoop A；
Fig. 6 is the schematic cross-section after the utility model insulation inner ring processing；
Fig. 7 is one of dead ring after split-type of the present utility model；
Fig. 8 is one of dead ring before split-type of the present utility model；
Fig. 9 is two of dead ring after split-type of the present utility model；
Figure 10 is two side view of dead ring after split-type of the present utility model；
Figure 11 is two of dead ring before split-type of the present utility model；
Figure 12 is two side view of dead ring before split-type of the present utility model.
Marked in figure：Trim ring, 4- insulating mechanisms, 5- sleeves, the bolts of 6- first, 7- spiral shells after trim ring, 3- before 1- commutator segments, 2-
Cap, 8- metal hoops, 9- rise pieces, 10- insulation inner ring, dead ring, the seams of 13- first, 14- the before dead ring, 12- after 11-
Two seams, the bolts of 15- second, the splitted structures of 16- first, the splitted structures of 17- second.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Embodiment 1
A kind of motor reversing device, as shown in figure 1, including being installed on changing with rise piece on rotor by sleeve
To piece 1, the both ends of commutator segment 1 are equipped with pressing ring mechanism, insulating mechanism 4 are provided between commutator segment 1 and pressing ring mechanism with reality
Existing insulation effect, the metal hoop 8 with commutator segment insulation is cased with commutator segment 1, using metal hoop 8 to strengthen the strong of commutator segment
Degree.
In the present embodiment, insulating mechanism 4 is used as preferred embodiment, is made of mica material and is matched with pressing ring mechanism
Annular.The insulation effect of the material is good, the insulation effect between favourable pressing ring mechanism and commutator segment.
In the present embodiment, strengthen the intensity at large-scale dc motor commutator segment dove tail using metal hoop, fill the commutation
The intensity for being installed on dove tail after rotor is put to reach requirement desired value, meanwhile, the chip architecture that commutated during high speed selects is more
Add stabilization.Due to using metal hoop, and in actual applications, it is necessary to avoid discharging over the ground indirectly, utility model profit
Independent main body is formed between metal to realize with insulating materials, the effective strength problem and indirect discharge for solving reversing arrangement
The problem of.
Specifically, in above-mentioned embodiment, specific in large-scale dc motor, the commutator segment needs to add commutator segment 1
Trim ring is filled, the structure of commutator segment 1 has dove stern construction, and the structural strength of one end dove tail positioned at rise piece 9 can not effectively reach
To target call, and metal hoop 8 is used to strengthen intensity.More specifically, it is indirect in order to avoid occurring using insulation processing
The problem of electric discharge.During assembling, pressing ring mechanism is set to be insulated with commutator segment using insulating mechanism 4.Based on large-sized DC electricity
Machine has certain difficulty in fit on, in order to optimize the intensity of commutator segment and reduce assembly difficulty, carries out following optimization design.
In design principle based on above-mentioned embodiment, in the assembling process of large-scale dc motor, in order to ensure
The precision of assembling, and optimization operating process, easy to operation, the mode of accurate positioning, it simple and clear using assembling structure
In in an embodiment, pressing ring mechanism includes preceding trim ring 2 and rear trim ring 3, sleeve 5 be arranged at preceding trim ring 2 and rear trim ring 3 it
Between and on the inside of the commutator segment, preceding trim ring 2, rear trim ring 3, commutator segment 1 and the sleeve 5 are connected as one by multiple first bolts 6
Body.Specific design is implemented to, correspondence position opens up the through hole for assembling on preceding trim ring 2, sleeve 5 and rear trim ring 3, by
One bolt 6 is integrated through through hole and assembly connection, so that reversing arrangement is molded.
In design principle based on above-mentioned embodiment, the company between the first bolt 6 and pressing ring mechanism and sleeve 5
Connect relation, specific in the design of structure, in another embodiment, the first bolt 6 is stud, wherein one end with
By screw thread directly conjunction, the other end fastens trim ring through preceding trim ring and by nut 7 conjunction afterwards.Which can be carried out preferentially
Positioning, operation are more succinct.Specific to the quantitative design of the first bolt 6, the quantity of first bolt 6 is 20-50.More have
Body, first bolt 6 is distributed for circumference array.Also define the Distribution Principles of the through hole for assembling.
In design principle based on above-mentioned embodiment, while the intensity of commutator segment is added, for gold
Belong to the consideration of garter spring and commutator segment indirect discharge, then carry out Optimal Structure Designing, in a wherein embodiment, ferrule
Ring 8 is installed on the commutator segment where rise piece 9, is provided between the metal hoop 8 and commutator segment 1 for the exhausted of insulation
Edge inner ring 10, the metal hoop 8 are provided with rear dead ring 11 close to the side of rise piece, and the metal hoop 8 is away from rise piece
Side is provided with preceding dead ring 12.Using split type structure to realize the effect of insulation, in addition, during design, gold
After belonging to garter spring assembling, need to stop creep age distance between the rear end face and rise piece of metal hoop.
During installation, especially during the inner ring that insulate is formed, insulation inner ring cladding is not only considered
Effect on commutator segment, and precision when dead ring and metal hoop assemble is contemplated that, and in large-scale direct current
In motor, the assembling will improve precision and use more excellent and simple mode to be for the benefit of mutually located relation so as to realize precision
Ensure, therefore, in another embodiment, as shown in figures 1 to 6, insulation inner ring 10 is coated and added using insulating materials
Heat cure is made, and is machined with first seam 13 spacing for metal hoop 8 close to the end of rise piece, is set on commutator segment 1
It is equipped with second seam 14 spacing for the inner ring that insulate.Using the positioning of the second seam 14 and coated insulation material, by insulating materials
Be heating and curing shaping, forms insulation inner ring, and reprocessing makes surface smooth, meanwhile, the first seam is processed, is made by the first seam
For positioning datum, to realize high-precision assembling.As preferably selecting, insulating materials uses mica tape.Utilize mica material
The insulation effect of the good performance guarantee device of insulation effect.
On the basis of above-mentioned embodiment, to strengthen the intensity of commutator segment and beneficial to commutator segment at a high speed
The stabilization of rotation, in another embodiment, metal hoop 8 is interference fit with insulation inner ring 10, and passes through the first limit
Dead ring 11 after position platform and metal hoop assembling, preceding dead ring 12 are assemblied on metal hoop by multiple second bolts 15.Profit
Assembled with the mode of interference fit, can effectively strengthen the intensity of commutator segment.Being designed to of which effectively avoids gold
Belong to the first coated insulation material of garter spring 8, because the difference of the coefficient of expansion easily causes the effect of insulating materials damage.And in this implementation
In mode, due to being interference fit, with reference to the material character of insulation inner ring, in heating, the temperature of metal hoop is no more than 150
DEG C with avoid damage to insulate inner ring.And among further design, due to different temperatures in the case of situation about expanding it is different,
And among actual design, the tight amount of interference fit is in 1.5mm-3mm.
Specifically, in the design principle based on above-mentioned embodiment, in another embodiment, the second bolt
15 be that circumference array is distributed.In the present embodiment, the quantity of second bolt 15 is 4-10.
More specifically, in the design principle based on above-mentioned embodiment, as shown in Figure 4 and Figure 5, metal hoop 8
Section it is " T " shape, the bottom of rear dead ring 11 is carried out spacing by the first seam 13, and the top of rear dead ring 11 is located at metal
The lower section of the rear side boss of garter spring 8, so that rear dead ring is located in the groove below the rear side boss of metal hoop 8, preceding dead ring 12
It is assemblied in the groove below the front side boss of metal hoop 8, is carried out using the second bolt conjunction.I.e.：The internal diameter of dead ring 11 afterwards
External diameter more than the first seam recess and the external diameter less than the first seam convex portion, the external diameter of rear dead ring 11 are less than metal hoop 8
The internal diameter of convex portion, the internal diameter of preceding dead ring 12 are more than the external diameter of insulation inner ring, and the external diameter of preceding dead ring 12 is convex less than metal hoop 8
The internal diameter in portion, in addition, the thickness of the rear dead ring 11 and preceding dead ring 12 width phase with the corresponding convex portion of metal hoop 8 respectively
Deng.
On the basis of certain, as sealing and protection, and make exposed position and air exclusion, therefore, another
In one embodiment, the metal hoop 8, insulation inner ring 10, preceding dead ring 12, the assembling gap of rear dead ring 11 and the
The outer surface of two bolts 15 applies envelope coating for sealing off gap and isolated part and air.Material conduct used by the coating
Preferably select, the material of the coating is epoxy resin.Epoxy resin has preferable adhesive force, and sealing effectiveness is preferable,
It is commonly applied in national defence device, and the design is for large-size machine structure, the problem of due to use environment and excessive equipment, in order to
Increase the service life of motor, employ the design.In addition, exposed position applies envelope three-proofing coating after metal hoop 8 assembles.
In design principle based on above-mentioned embodiment, preceding dead ring 12 and rear dead ring 11 are done further specific
The design of change, in a wherein embodiment, preceding dead ring 12 and/or rear dead ring 11 are using glass-cloth board, micarex
Suppress or shape.Certainly, in the design, insulating materials is not specifically designed requirement, and insulating materials is not only limited to this, adopts
Preceding dead ring 12 and rear dead ring 11 in being designed with other insulating materials costs of manufacture belong to the conventional skill in equivalent technologies field
Art substitutes.
In design principle based on above-mentioned embodiment, in a wherein embodiment, such as Fig. 3 and Fig. 4 institutes
Show, preceding dead ring 12 and/or rear dead ring 11 are integrated and be made.The Standard is simple, is positioned using assembling.
In design basis based on above-mentioned embodiment, in another embodiment, a kind of dc motor,
Include the motor reversing device of any embodiment described above.
Embodiment 2
A kind of motor reversing device, as different from Example 1, rear dead ring 11 and/or preceding dead ring are split-type knot
Structure.
Specifically, in present embodiment, rear dead ring 11 is processed using glass cloth laminated sheet or micarex is suppressed to form the
One splitted structure 16, rear dead ring 11 use 4（Or 3-8 pieces）First splitted structure 16, overall structure is stitched together, and applies
Epoxy glue is bonded.
More specifically, preceding dead ring 12 is processed using glass cloth laminated sheet or micarex is suppressed to form the second splitted structure
17, preceding dead ring uses 4（Or 3-8 pieces）Second splitted structure 17, it is plugged on insulation inner ring, and is applied by inserting mode
Epoxy glue is bonded, and is attached together and matched somebody with somebody by the second bolt handle.In addition, for the through hole of conjunction to be bypassed seam.
Because preceding dead ring and rear insulation ring thickness are relatively thin, diameter is again very big, and it is higher to make overall structure cost, therefore
Consideration is made into splitted structure.Simultaneously, it is contemplated that the difficulty of assembling, glued after dividing valve to make shaping using epoxy glue
Connect.In addition, similar using the design assembly method such as principle of embodiment 1 of which, assembly relation is simple and clear, easy to operation.
Specifically, in the design basis based on above-mentioned embodiment, splitted structure can employing mode such as Fig. 7 to Figure 12
It is shown：
One of embodiment, as shown in Figure 7 and Figure 8, splitted structure are assembled by the way of seam cooperation, using end
The matching way of face contact, and it is in Z-shaped or other shapes to form front view seam, utilizes glue sticking；
The two of embodiment, as shown in Fig. 9 to 12, splitted structure rear ends are separately provided for assembling top with
The seam of side, and is assembled by the seam and another splitted structure, is assembled by the way of laminating, using glue sticking with/
Or it is fixed as one using bindiny mechanism 18.Contrasting two kinds of above-mentioned one of embodiments, embodiments thereof needs seam system
Into other circular shapes of polygon the latter, its major function is used to increase the contact area divided between valve, and ensures adhesive effect.
The two of embodiments thereof ensure that contact area, simultaneously because there is lap, can also use bindiny mechanism（Such as screw）Even
Connect to form one, therefore the unlimited shape of seam formed, use " one " font for attractive in appearance.It is above-mentioned to be used to glue as preferable
The preferred epoxy glue of glue connect.
In design principle based on above-mentioned embodiment, the splitted structure rear ends of rear dead ring or preceding dead ring
The seam being separately provided for above and below assembling, and assembled by the seam and another splitted structure, using folded
The mode of pressure is assembled, when being bonded using epoxy glue and/or being fixed as one using bindiny mechanism 18, in another embodiment
In, bindiny mechanism 18 is provided with lap after the first splitted structure assembling of rear dead ring.The bindiny mechanism 18 is company
Connect screw.In another embodiment, after the second splitted structure assembling of preceding dead ring, the assembling with the cooperation of the second bolt
Hole is arranged on the position at the overlapping place after the assembling of the second splitted structure.
In design principle based on above-mentioned embodiment, preceding dead ring 12 and rear dead ring 11 are not limited to one of them
Or one of two above-mentioned embodiments of use or both use, such as：Preceding dead ring uses above-mentioned embodiment
One of, then dead ring using be made into integration, one of embodiment or embodiment two.
Embodiment 3
In design principle based on embodiment 1 and embodiment 2, there is provided a kind of processing method of motor reversing device, including
Following steps：
A, by commutator segment, sleeve and pressing ring mechanism assembled formation；
B, commutator segment is being processed close to the position of rise piece, is making to be formed second with assembling limit function on commutator segment and stop
Mouthful；
C, coat one fixed width on away from the commutator segment where rise piece one end along the second seam and thickness is used for absolutely
The insulating materials of edge, heat-insulating material, and curing molding, the insulating materials of curing molding is reprocessed, makes insulation material
Material is formed with the insulation inner ring for the first spacing seam；
D, dead ring after assembling, rear dead ring is entered along end of the commutator segment away from rise piece to rise piece and is assembled to absolutely
First stop portion of edge inner ring, positioning datum is used as using the first seam；
E, metal hoop is heated to certain temperature, and metal hoop is entered along end of the commutator segment away from rise piece to rise piece
Enter and rear end face is bonded with rear dead ring, fill insulation inner ring, rear dead ring and metal hoop by interference fit after cooling
With shaping；
F, dead ring before assembling, preceding dead ring is entered along end of the commutator segment away from rise piece to rise piece and is assembled to gold
Category garter spring front end face is simultaneously bonded, and conjunction is fastened by the second bolt.
Specifically, in step c, preferably mica tape is as insulating materials.
In design based on above-mentioned embodiment, in another embodiment, in addition to step g, by metal
Garter spring, insulation inner ring, preceding dead ring and the assembling gap of rear dead ring and the second bolt outer surface apply envelope coating for close
Joint seal gap and isolated part and air.Material is used as and preferably selected used by the coating, and the material of the coating is asphalt mixtures modified by epoxy resin
Fat.The design method is mainly to reach the effect of sealing.Making for the device produced under the technique is lifted using epoxy resin
Use the life-span.In present embodiment, as specific design, it is located at after the second bolts assemblies in metal hoop and/or preceding dead ring
Part applies envelope epoxy resin or does not apply envelope epoxy resin.Ensure that exposed part applies envelope resin.
Assembling based on foregoing description, in another embodiment, in step a, pressing ring mechanism include preceding trim ring and
Trim ring afterwards, using stud will wherein one end and rear trim ring directly conjunction, be sequentially loaded into sleeve and preceding trim ring, stud
The other end run through preceding trim ring, using nut close, by pressing ring mechanism, sleeve and commutator segment assemble shape, and using insulation
Mechanism makes pressing ring mechanism be insulated with commutator segment.Insulating mechanism 4 is used as preferred embodiment, is made of mica material and trim ring
The annular of authority match.The insulation effect of the material is good, the insulation effect between favourable pressing ring mechanism and commutator segment.
For metal hoop with insulation inner ring interference fit, in another embodiment, in step e, ferrule
Ring heating-up temperature is not higher than 150 DEG C, to ensure that mica tape is not affected by high temperatures deformation in assembling process.
In interference fit, because temperature is different, fiting effect is different, and expansion of metal is different, wherein a specific embodiment party
In formula, in step e, the tight amount being interference fitted between metal hoop and interior insulation circle is 1.5-3mm.
Make further optimization in the assembling to metal hoop, from the design of outward appearance and creep age distance, in another tool
In body embodiment, in step e and step f, metal hoop processing is "T"-shaped in section, and rear dead ring passes through the first seam
Assembled with the rear end face flute profile of metal hoop, preceding dead ring is assemblied in the flute profile of the front end face of metal hoop.
In design principle based on above-mentioned embodiment, in another embodiment, in step e and step f,
Metal hoop assembles rear exposed position and applies three-proofing coating to improve the physical life of metal hoop, avoids getting rusty.
In design principle based on above-mentioned embodiment, in a wherein embodiment, step e and step f
In, preceding dead ring and/or rear dead ring are using being made into integration or splitted structure.
In a wherein embodiment, in step e and step f, what preceding dead ring and/or rear dead ring used divides valve
During structure, valve will be divided to be bonded using glue, then assembled.Preferably, the preferred epoxy glue of glue being bonded is used in the embodiment.
The structure that a kind of reversing arrangement of the present utility model uses is more ingenious in design, utilizes the control of tight amount and temperature
System is assemblied on commutator segment with realizing that metal hoop is firm, and in the design process, the distance between metal hoop and rise piece need
Meet creep age distance, and the distance needs to be configured according to the actual requirements in the design process.And in the present apparatus, mainly should
For large-scale dc motor, therefore, commutation chip architecture is big, dove stern construction generally be present, so as to be not described in detail to commutator segment,
Designing points of the present utility model focus on to be the strength problem for solving commutator segment.And in the design, on the one hand it is for commutation
Piece intensity, on the other hand it is to solve the problems, such as metal hoop and reversing arrangement indirect discharge using specific design structure, is
Solves the problems, such as insulation.Using interference fit in order to further fasten commutator segment, interference fit is to be set with METAL HEATING PROCESS again, is
Inner ring high temperature deformation of insulating is avoided, the consideration for material mica tape is, it is necessary to strict temperature control, and in the design, profit
Deformed with the inner ring that insulate of being designed to effectively avoid less than 150 DEG C, with the change of temperature, the effect of interference fit is also
Difference, therefore the tight amount designed is also different.Under the scope of design of the temperature, 1.5mm-3.0mm is designed as using tight amount, so as to
Ensure the practical function of whole device after mounting.From the prior art, the reversing arrangement of large-scale dc motor is in practicality
And the intensity of commutator segment belongs to problem, by the design and assembly method, the problem of such is can effectively solve the problem that, and pass through
Test and try out and sufficiently affirmed.
In summary, a kind of motor reversing device of the present utility model effectively solves large-scale dc motor reversing arrangement
Middle commutator segment insufficient strength, it is impossible to it is up to standard the problem of, by installing metal hoop additional, and combine interference fit and fully improve commutator segment
The tightness of assembling, while increase the intensity of commutator segment dove tail, to improve the practicality of commutator segment, applying working condition requirement is reduced,
Commutator segment is met in all operating modes（Including specified, overlond running）When intensity requirement, while the design of the device is more conducive to
Reversing arrangement process and assemble, due to the design of rigging position and location structure, efficiency of assembling is effectively lifted, it is large-scale straight to solve promotion
The packaging efficiency of motor is flowed, structural relation is clear, simple to operate to understand, in addition, the device need not be first by insulating materials
It is coated on metal hoop outer surface and participates in hot jacket, when so avoids hot jacket due to metal and insulating materials thermal coefficient of expansion not
The insulation damages with caused by.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
- A kind of 1. motor reversing device, it is characterised in that：Including being installed on changing with rise piece on rotor by sleeve To piece（1）, the commutator segment（1）Both ends are equipped with pressing ring mechanism, commutator segment（1）Insulating mechanism is provided between pressing ring mechanism （4）To realize insulation effect, commutator segment（1）On be cased with commutator segment insulation metal hoop（8）, utilize metal hoop（8）With Strengthen the intensity of commutator segment.
- A kind of 2. motor reversing device as claimed in claim 1, it is characterised in that：The pressing ring mechanism includes preceding trim ring（2） With rear trim ring（3）, sleeve（5）It is arranged at preceding trim ring（2）With rear trim ring（3）Between and on the inside of the commutator segment, the preceding trim ring （2）, rear trim ring（3）, commutator segment（1）And sleeve（5）Pass through multiple first bolts（6）Connect as one.
- A kind of 3. motor reversing device as claimed in claim 2, it is characterised in that：First bolt（6）For stud, Wherein by screw thread directly conjunction, the other end is through preceding trim ring and passes through nut for one end and rear trim ring（7）Fastened closing.
- A kind of 4. motor reversing device as claimed in claim 1, it is characterised in that：The metal hoop（8）It is installed on close Rise piece（9）On the commutator segment at place, the metal hoop（8）With commutator segment（1）Between be provided with insulation inner ring for insulation （10）, the metal hoop（8）The side of rise piece is provided with rear dead ring（11）, the metal hoop（8）Away from rise piece Side be provided with preceding dead ring（12）.
- A kind of 5. motor reversing device as claimed in claim 4, it is characterised in that：The insulation inner ring（10）Using insulation material Material is coated and is heating and curing and is made, and is machined with close to the end of rise piece for metal hoop（8）The first spacing seam （13）, the commutator segment（1）On be provided with second seam spacing for the inner ring that insulate（14）.
- A kind of 6. motor reversing device as claimed in claim 5, it is characterised in that：The metal hoop（8）With the inner ring that insulate （10）To be interference fitted, and pass through dead ring after the first limiting stand and metal hoop assembling（11）, preceding dead ring（12）By more Individual second bolt（15）It is assemblied on metal hoop.
- A kind of 7. motor reversing device as claimed in claim 5, it is characterised in that：The metal hoop（8）, insulation inner ring （10）, preceding dead ring（12）, rear dead ring（11）Assembling gap and the second bolt（15）Outer surface apply envelope coating with In sealing off gap and isolated part and air.
- A kind of 8. motor reversing device as claimed in claim 4, it is characterised in that：The preceding dead ring（12）It is and/or rear exhausted Edge ring（11）Suppress or shape using glass-cloth board, micarex.
- A kind of 9. motor reversing device as claimed in claim 4, it is characterised in that：The preceding dead ring（12）It is and/or rear exhausted Edge ring（11）It is integrated and is made or splitted structure.
- A kind of 10. dc motor, it is characterised in that：Including a kind of motor commutation dress as described in claim any one of 1-9 Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721140377.2U CN207165892U (en) | 2017-09-07 | 2017-09-07 | A kind of motor reversing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721140377.2U CN207165892U (en) | 2017-09-07 | 2017-09-07 | A kind of motor reversing device |
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| Publication Number | Publication Date |
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| CN207165892U true CN207165892U (en) | 2018-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623234A (en) * | 2017-09-07 | 2018-01-23 | 东方电气集团东方电机有限公司 | A kind of motor reversing device and processing method |
-
2017
- 2017-09-07 CN CN201721140377.2U patent/CN207165892U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623234A (en) * | 2017-09-07 | 2018-01-23 | 东方电气集团东方电机有限公司 | A kind of motor reversing device and processing method |
| CN107623234B (en) * | 2017-09-07 | 2023-11-17 | 东方电气(德阳)电动机技术有限责任公司 | Motor reversing device and processing method |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210817 Address after: 618000 No. 19-12, building 21, phase I, Yinxin Wuzhou Plaza, No. 733, Section 2, Taishan South Road, Deyang City, Sichuan Province Patentee after: Dongfang Electric (Deyang) Motor Technology Co.,Ltd. Patentee after: DEC DONGFANG ELECTRIC MACHINERY Co.,Ltd. Address before: 188 Huanghe West Road, Jingyang District, Deyang City, Sichuan Province Patentee before: DEC DONGFANG ELECTRIC MACHINERY Co.,Ltd. |
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| TR01 | Transfer of patent right |