CN207926401U - A kind of DC motor structure - Google Patents
A kind of DC motor structure Download PDFInfo
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- CN207926401U CN207926401U CN201820185123.0U CN201820185123U CN207926401U CN 207926401 U CN207926401 U CN 207926401U CN 201820185123 U CN201820185123 U CN 201820185123U CN 207926401 U CN207926401 U CN 207926401U
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- motor
- carbon brush
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Abstract
The utility model discloses a kind of DC motor structure, including motor body, the motor body is equipped with oval carbon brush hole, and motor rotor is equipped with baffler, and motor body bottom is equipped with sealing rear end cap.The utility model carbon brush only has micro abrasion, and produced carbon dust, which will not be formed, to be piled up between commutation tank or brush nest and carbon brush in gap；Baffler on rotor can effectively completely cut off micro carbon dust and enter rotor iron and magnetic pole, between rotor coil and stator coil（I.e. in motor back cavity）, the dc motor class of insulation will not be reduced because motor back cavity carbon dust adheres to, reduced because defective insulation causes carbon brush spark to increase phenomenon.
Description
Technical field
The utility model is related to dc motors, and in particular to a kind of micro- carbon dust DZWG type dc motors.
Background technology
Currently, dc motor is driven using direct current series motor in railway ZD6 type electric point machines, with body
The advantage that product is small, output power is high.But the motor big, motor insulation decline of broken string, carbon brush dust etc. frequent occurrence in use
Disadvantage.For broken string and insulating process problem, the technological measure that manufacturer takes some new in recent years, make disconnection fault and absolutely
Edge declines problem and is greatly improved, and the big problem of the carbon brush dust being widely present only does not have effective measures to be solved always
Certainly.
The equipped direct current series motor of ZD6 type electric point machines（Hereinafter referred to as：ZD6 direct current generators）The design of carbon brush original is adopted
It is electrographite carbon brush D104,50 hours wear extenies of the carbon brush are 0.25mm, and wear extent is in causing the motor to use greatly
The main reason for generating a large amount of dust.A large amount of carbon brush dust is attached on rotor and stator coil.Especially damp and hot
Under the conditions of, it is the principal element for causing motor insulation to decline that such phenomenon, which occurs,.Carbon brush dust heap easily between brush carrier and carbon brush
Product, thereby results in carbon brush card resistance and motor is made to break down；Carbon brush dust deposit is more in rotor commutator commutator segment groove
When, short trouble between piece but will be caused, keeps motor failure, such phenomenon probability of happening higher.
Though there is corrective measure in manufacturer to problems：Carbon brush material is such as improved as metallic graphite carbon J201 or J204, but
Its 50 hours test wear amounts are still 0.18 mm or so, and not only carbon brush dust problem is not solved very well, but due to carbon brush
Middle tenor is big, and carbon brush hardness increases, and the abrasion of commutator outer surface is caused to increase instead, and new ask is brought for electrical machmary maintenance
Topic.
In being repaiied in electric point machine, the maintenance load of dc motor occupies larger specific gravity.To solve carbon brush for electric machine
The problem of dust, maintenance department have paid many labour and cost.Current China electromechanical industries new technology grows a lot, nothing
Dust carbon brush is solves the problems, such as that ZD6 carbons brush for electric machine provide technical foundation.
Invention content
The utility model is described electronic in view of the above-mentioned problems, provide a kind of DC motor structure, including motor body
Machine ontology drive end bearing bracket is equipped with oval carbon brush hole, installs micro- carbon dust carbon brush, and motor body internal rotor is equipped with baffler, electricity
Motivation body bottom portion is equipped with sealing rear end cap.
The advantages of the utility model：
The utility model carbon brush only has micro abrasion, and produced carbon dust, which will not be formed, is piled up in commutation tank or brush nest and carbon
Between brush in gap；Baffler on rotor can effectively completely cut off micro carbon dust and enter rotor iron and magnetic pole, rotor coil and stator
Between coil（I.e. in motor back cavity）, the dc motor class of insulation will not be reduced because motor back cavity carbon dust adheres to, subtracted
Less because defective insulation causes carbon brush spark to increase phenomenon.
Other than objects, features and advantages described above, the utility model also has other purposes, feature and excellent
Point.Below with reference to figure, the utility model is described in further detail.
Description of the drawings
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituted improper limits to the present invention for explaining the utility model.
Fig. 1 is the DC motor structure overall schematic of the utility model embodiment；
Fig. 2 is the baffler inner mounting structure schematic diagram of the DC motor structure of the utility model embodiment；
Fig. 3 is the barrier plate structure schematic diagram of the DC motor structure of the utility model embodiment；
Fig. 4 is the sealing rear end cover structure schematic diagram of the DC motor structure of the utility model embodiment.
Reference numeral：
1 be motor body, 2 be oval carbon brush hole, 3 be baffler, 4 be sealing rear end cap.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this
Utility model is not used to limit the utility model.
Referring to figs. 1 to Fig. 4, as shown in Figures 1 to 4, a kind of DC motor structure, including motor body 1, the electricity
1 drive end bearing bracket of motivation ontology is equipped with oval carbon brush hole 2, installs micro- carbon dust carbon brush, and 1 internal rotor of motor body is equipped with barrier
Plate 2,1 bottom of motor body are equipped with sealing rear end cap 3.
The utility model changes carbon brush material, using novel micro dust carbon brush.
The structure design for changing ZD6 direct current generators, installs isolation baffle plate additional, stator coil between commutator and rotor iron
Two relatively independent parts are separated into rotor coil and rotor commutator and carbon brush, so that commutator and carbon brush abrasion is generated micro-
Amount dust will not invade space where stator and rotor coil, to overcome harmful effect of the carbon brush dust to motor insulation generation,
Improve stator and rotor material and insulating process, stator coil and rotor coil material are increased to F class F insulating material Fs by B-class insulation.
Its rotor is closed using F class F insulating material Fs simultaneously, and the insulation of ZD6 direct current generators is made to reach F grades of levels.
To achieve the above object, the technical solution adopted in the utility model is：Dc motor is by micro dust carbon brush, commutation
The compositions such as device, rotor, isolation baffle plate.It is characterized in that：Carbon brush is the wear-resisting carbon brush of micro dust, and isolation baffle plate is located at commutator and rotor
Energy barrier together is formed between iron, when baffler is rotated with rotor, can be completely cut off carbon brush dust and be entered dc motor back cavity（Turn
Subcoil and stator coil）Residing position.Rotor coil ensures that the rotor coil class of insulation reaches F grades using drop soaking technology.
The utility model is suitable for the improvement of dc motor in railway ZD6 type electric point machines.
The utility model carbon brush only has micro abrasion, and produced carbon dust, which will not be formed, is piled up in commutation tank or brush nest and carbon
Between brush in gap；Baffler on rotor can effectively completely cut off micro carbon dust and enter rotor iron and magnetic pole, rotor coil and stator
Between coil（I.e. in motor back cavity）, the dc motor class of insulation will not be reduced because motor back cavity carbon dust adheres to, subtracted
Less because defective insulation causes carbon brush spark to increase phenomenon.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (1)
1. a kind of DC motor structure, including motor body（1）, which is characterized in that the motor body（1）Drive end bearing bracket
It is equipped with oval carbon brush hole（2）, micro- carbon dust carbon brush, motor body are installed（1）Internal rotor is equipped with baffler（3）, electronic
Machine ontology（1）Bottom is equipped with sealing rear end cap（4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820185123.0U CN207926401U (en) | 2018-02-02 | 2018-02-02 | A kind of DC motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820185123.0U CN207926401U (en) | 2018-02-02 | 2018-02-02 | A kind of DC motor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207926401U true CN207926401U (en) | 2018-09-28 |
Family
ID=63603228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820185123.0U Active CN207926401U (en) | 2018-02-02 | 2018-02-02 | A kind of DC motor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207926401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601487A (en) * | 2019-09-23 | 2019-12-20 | 王晓欣 | Carbon brush motor and rotor structure for preventing powder deposition by direct current |
-
2018
- 2018-02-02 CN CN201820185123.0U patent/CN207926401U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601487A (en) * | 2019-09-23 | 2019-12-20 | 王晓欣 | Carbon brush motor and rotor structure for preventing powder deposition by direct current |
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