CN206412876U - A kind of direct current generator - Google Patents
A kind of direct current generator Download PDFInfo
- Publication number
- CN206412876U CN206412876U CN201720067403.7U CN201720067403U CN206412876U CN 206412876 U CN206412876 U CN 206412876U CN 201720067403 U CN201720067403 U CN 201720067403U CN 206412876 U CN206412876 U CN 206412876U
- Authority
- CN
- China
- Prior art keywords
- steel ball
- copper sheet
- armature spindle
- permanent magnet
- commutation copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of direct current generator, the two ends of electric machine casing are fixedly connected with left and right end cap, left bearing is installed in left end cap, right bearing is installed in right end cap, the left and right shaft end of armature spindle carries out pivoting support by left and right bearing, right bearing carries out axial limiting by the step of right bearing positioning hole and the shaft block ring on armature spindle, it is characterised in that：The left axle end end face of armature spindle is provided with taper hole, permanent magnet and the first steel ball are provided with taper hole, permanent magnet and the first steel ball mutually at a distance from, permanent magnet is fixedly mounted, the activity of first steel ball is installed, and the first steel ball is always positioned in taper hole by the absorption of permanent magnet, and the left side of the first steel ball is provided with the second steel ball, second steel ball is fixedly connected in adjusting screw, and adjusting screw is adjustable to be connected on left end cap.The utility model has the advantages that armature spindle has reliable axially position, commutator manufacture craft is simple, lightweight, cost is low, sound construction, perfect heat-dissipating, meets high rotary speed working requirement.
Description
Technical field
The utility model is related to a kind of improvement invention of direct current generator.
Background technology
The direct current generator of prior art, is primarily present following deficiency：1. the axially position of armature spindle is not especially reliable, electricity
Axial movement value is big when machine works；2. weight weight, the heat dispersion of commutator are poor, above-mentioned factor all directly affects direct current generator
High rotary speed working requirement；3. the manufacture craft of commutator is complex, cost is high.The commutator of prior art, including plastics base
Body and the commutation copper sheet of the uniform screening of excircle in plastic substrate, the medial surface of commutation copper sheet will set hook to be implanted into plastics base
Combined in vivo with plastic substrate, hook needs cold punching technology to be formed, therefore not only manufacture craft is complex for commutation copper sheet, and
And weight weight, the consumptive material of commutation copper sheet are big, cost is high；And plastic substrate will be combined with hook, so plastic substrate will be to change
It is configured to the full-height of copper sheet, therefore the same weight weight of plastic substrate, consumptive material are big, cost is high, are changed while also reducing
To the heat dispersion of device；Further, since the weight weight rotary inertia of commutation copper sheet is big, to improve the sound construction degree of commutator,
The medial surface of commutation copper sheet often there is provision of reinforcement annular groove to place reinforcing ring in above-below direction, therefore commutator structure is more
Complexity also increases cost；Further, the crotch of the commutation copper sheet often row's of generation phenomenon in bonding wire, causes bonding wire quality not
It is good, influence electrical machinery life.
The content of the invention
In view of the deficiencies in the prior art, the purpose of this utility model, which is to provide a kind of armature spindle, has reliable axially position,
Commutator manufacture craft is simple, lightweight, cost is low, sound construction, perfect heat-dissipating, meets the direct current of high rotary speed working requirement
Motor.
The utility model adopts the following technical scheme that to complete：
A kind of direct current generator, including electric machine casing and stator component, rotor part in electric machine casing, electric machine casing
Two ends be fixedly connected with left and right end cap, left end cap, which is provided with left bearing positioning hole, left bearing positioning hole, installs left bearing, right end cap
Provided with right bearing positioning hole, right bearing is installed in right bearing positioning hole, rotor part includes armature spindle and is fixed on armature spindle
Commutator, the left axle end of armature spindle carries out pivoting support by left bearing, and the right axle end of armature spindle carries out revolution branch by right bearing
Hold, right bearing carries out axial limiting by the step of right bearing positioning hole and the shaft block ring on armature spindle, it is characterised in that：
The left axle end end face of armature spindle is provided with taper hole, is provided with permanent magnet and the first steel ball in taper hole, permanent magnet and the first steel ball mutually from
Certain distance is opened, permanent magnet is fixedly mounted, the activity of the first steel ball is installed, the first steel ball is located at taper hole by the absorption of permanent magnet
Interior, the left side of the first steel ball is provided with the second steel ball, and the second steel ball is fixedly connected in adjusting screw, the adjustable connection of adjusting screw
On left end cap.
After adopting the above technical scheme, making first, second steel ball abut contact by the regulation of adjusting screw, with regard to energy
Enough eliminate armature spindle axial gap armature spindle is obtained reliable axially position, so ensure that motor work when not
Axial float can be produced, so that the high rotary speed working requirement of direct current generator is effectively ensured；During motor work simultaneously, the first steel ball exists
Roll, rub small in the space that second steel ball and taper hole are crossed, therefore the high rotary speed working requirement of similarly suitable direct current generator.Separately
Outside, because the first steel ball is located in taper hole by the absorption of permanent magnet, so greatly facilitating installation, it is to avoid steel ball dislocation is fallen
Fall.
Preferably, the commutator includes the commutation copper sheet for surrounding cylinder, the interior lateral surface of commutation copper sheet is light
Leave clearance for insulation between the sliding face of cylinder, adjacent commutation copper sheet, the top of commutation copper sheet carries crotch, the top of commutation copper sheet with
Upper lid is connected, and upper lid is more than the external diameter of cylinder to form commutation copper sheet with the integral injection-compression molding of commutation copper sheet, the external diameter of upper lid
Upper reinforcing ring, the bottom of commutation copper sheet is connected with lower cover, and the external diameter of lower cover is more than the external diameter of cylinder to form commutation copper sheet
Lower reinforcing ring.
After adopting the above technical scheme, the structure of commutator is greatly optimized, the medial surface of 1. commutation copper sheets is not required to set
Hook is put, manufacture craft is simple, lightweight, cost is low, and the rotary inertia of commutation copper sheet is small；2. plastics base is replaced by upper and lower covers
Only it need to consider to reserve the distance that commutation copper sheet contacts with carbon brush between body, upper and lower covers to be combined with hook without consideration, therefore on
Lower cover is not required to be configured with the full-height of commutation copper sheet, upper and lower covers compared to plastic substrate is lightweight, consumptive material is few, cost is low,
The center section of commutation copper sheet is completely formed hollow out design simultaneously, improve the heat dispersion of commutator；3. upper and lower covers is outer
Footpath, which is more than the external diameter of cylinder, i.e. upper and lower covers, directly to form commutation from the lateral direction banding commutation copper sheet of commutation copper sheet
The reinforcing ring up and down of copper sheet, improves the sound construction degree of commutator；4. commutator is lightweight, sound construction, perfect heat-dissipating,
The rotary inertia of commutation copper sheet is small simultaneously, therefore, it is possible to more preferably meet the high rotary speed working requirement of direct current generator.
Preferably, being abutted on the inside of the outer circular top part and crotch of the upper lid.By above-mentioned design, in bonding wire
Upper lid can give crotch support on the inside of crotch, it is to avoid crotch produces the row's of falling phenomenon, it is ensured that bonding wire quality, and then ensures the motor longevity
Life.
Preferably, the adjacent side of the commutation copper sheet is recessed provided with arc.By above-mentioned design, one is that can mitigate to change
To the weight of copper sheet, while will not make the manufacture craft of commutation copper sheet becomes complicated（Because commutation copper sheet is with copper wires mostly
Formed using drawing process）；Two be that can increase the bond strength between commutation copper sheet and upper and lower covers.
Brief description of the drawings
The utility model has drawings described below：
Fig. 1 is the structural representation of direct current generator,
Fig. 2 is the top-direction view of commutator,
Fig. 3 is Fig. 2 A-A views,
Fig. 4 is Fig. 3 B-B views.
Embodiment
As illustrated, direct current generator of the present utility model, including electric machine casing 1 and the stator component in electric machine casing
2nd, rotor part, the two ends of electric machine casing 1 are fixedly connected with left and right end cap, and left end cap 7 is provided with left bearing positioning hole, left bearing positioning
Left bearing 9 is installed, right end cap 3, which is provided with right bearing positioning hole, right bearing positioning hole, installs right bearing 4, rotor part bag in hole
Armature spindle 5 and the commutator 8 being fixed on armature spindle are included, the left axle end of armature spindle 5 carries out pivoting support, rotor by left bearing 9
The right axle end of axle 5 carries out pivoting support by right bearing 4, and right bearing 4 is by the step of right bearing positioning hole and on armature spindle
Shaft block ring 6 carries out axial limiting, and the left axle end end face of armature spindle 5 is provided with taper hole 10, taper hole 10 provided with permanent magnet 14 and the
One steel ball 13, the steel ball 13 of permanent magnet 14 and first is mutually at a distance from permanent magnet 14 is fixedly mounted, the activity of the first steel ball 13
Install, the first steel ball 13 is located in taper hole 10 by the absorption of permanent magnet 14, the left side of the first steel ball 13 is provided with the second steel ball 11,
Second steel ball 11 is fixedly connected in adjusting screw 12, and adjusting screw 12 is adjustable to be connected on left end cap 7.The commutator 8
22 commutation copper sheets 83 including surrounding cylinder, the interior lateral surface of commutation copper sheet 83 is smooth, cylindrical peripheral surface, adjacent to change
To clearance for insulation 86 is left between copper sheet 83, the adjacent side of commutation copper sheet 83 is provided with arc recessed 85, the top of commutation copper sheet 83
Portion carries crotch 84, and the top of commutation copper sheet 83 is connected with upper lid 81, and upper lid 81 uses bakelite powder material, upper lid 81 and commutation copper
The integral injection-compression molding of piece 83, the external diameter of upper lid 81 is more than the external diameter of cylinder to form the upper reinforcing ring of commutation copper sheet 83, commutated
The bottom of copper sheet 83 is connected with lower cover 82, and lower cover 82 uses bakelite powder material, lower cover 82 and the integral injection-compression molding of commutation copper sheet 83,
The external diameter of lower cover 82 is more than the external diameter of cylinder to form the lower reinforcing ring of commutation copper sheet 83, the outer circular top part of the upper lid 81 with
The inner side of crotch 84 is abutted.
Claims (4)
1. a kind of direct current generator, including electric machine casing and stator component, rotor part in electric machine casing, electric machine casing
Two ends are fixedly connected with left and right end cap, and left end cap, which is provided with left bearing positioning hole, left bearing positioning hole, installs left bearing, and right end cap is set
Have and right bearing is installed in right bearing positioning hole, right bearing positioning hole, rotor part includes armature spindle and is fixed on armature spindle
Commutator, the left axle end of armature spindle carries out pivoting support by left bearing, and the right axle end of armature spindle carries out pivoting support by right bearing,
Right bearing carries out axial limiting by the step of right bearing positioning hole and the shaft block ring on armature spindle, it is characterised in that：Turn
The left axle end end face of sub- axle, which is provided with taper hole, taper hole, is provided with permanent magnet and the first steel ball, and permanent magnet and the first steel ball mutually leave
Certain distance, permanent magnet is fixedly mounted, and the activity of the first steel ball is installed, and the first steel ball is located in taper hole by the absorption of permanent magnet,
The left side of first steel ball is provided with the second steel ball, and the second steel ball is fixedly connected in adjusting screw, and adjusting screw is adjustable to be connected to
On left end cap.
2. a kind of direct current generator as claimed in claim 1, it is characterised in that：The commutator includes surrounding the commutation of cylinder
Copper sheet, the interior lateral surface of commutation copper sheet is smooth, cylindrical peripheral surface, and clearance for insulation is left between adjacent commutation copper sheet, commutation copper sheet
Top carries crotch, and the top of commutation copper sheet is connected with upper lid, and upper lid and the integral injection-compression molding of commutation copper sheet, the external diameter of upper lid are big
In the external diameter of cylinder to form the upper reinforcing ring of commutation copper sheet, the bottom of commutation copper sheet is connected with lower cover, and the external diameter of lower cover is big
In the external diameter of cylinder to form the lower reinforcing ring of commutation copper sheet.
3. a kind of direct current generator as claimed in claim 2, it is characterised in that：The outer circular top part of the upper lid and the inner side of crotch
Abut.
4. a kind of direct current generator as claimed in claim 2, it is characterised in that：The adjacent side of the commutation copper sheet is provided with arc
It is recessed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720067403.7U CN206412876U (en) | 2017-01-20 | 2017-01-20 | A kind of direct current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720067403.7U CN206412876U (en) | 2017-01-20 | 2017-01-20 | A kind of direct current generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206412876U true CN206412876U (en) | 2017-08-15 |
Family
ID=59555886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720067403.7U Expired - Fee Related CN206412876U (en) | 2017-01-20 | 2017-01-20 | A kind of direct current generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206412876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787386A (en) * | 2017-01-20 | 2017-05-31 | 黄小红 | A kind of direct current generator |
-
2017
- 2017-01-20 CN CN201720067403.7U patent/CN206412876U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787386A (en) * | 2017-01-20 | 2017-05-31 | 黄小红 | A kind of direct current generator |
| CN106787386B (en) * | 2017-01-20 | 2023-08-01 | 揭阳市顺成发微电机有限公司 | DC motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170815 Termination date: 20210120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |