CN206533222U - A kind of closed assembly motor and the electric pushrod using the closed assembly motor - Google Patents
A kind of closed assembly motor and the electric pushrod using the closed assembly motor Download PDFInfo
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- CN206533222U CN206533222U CN201720080990.3U CN201720080990U CN206533222U CN 206533222 U CN206533222 U CN 206533222U CN 201720080990 U CN201720080990 U CN 201720080990U CN 206533222 U CN206533222 U CN 206533222U
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- China
- Prior art keywords
- end bearing
- bottom end
- closed assembly
- carbon brush
- outer tube
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Abstract
The utility model discloses a kind of closed assembly motor, it has outer tube（10）, and the bottom end cover being from bottom to top stacked in successively in outer tube（1）, encoder fixed seat（2）, carbon brush and bottom end bearing frame（4）, stator（7）, upper end bearing bracket stand（8）, upper end cover（11）；The internal key for positioning is provided with the madial wall of the outer tube vertically（16）, the encoder fixed seat（2）, carbon brush and bottom end bearing frame（4）With upper end bearing bracket stand（8）Lateral wall be provided with internal key cooperate keyway（18）；The invention also discloses the electric pushrod using the closed assembly motor；The closed assembly motor and electric pushrod disclosed using the utility model, in assembling process parts are not by the strength of radial direction, it is to avoid the bias that part deformation and displacement are brought, the erection skill independent of assembler, assembly precision is high, can effectively realize low noise, smaller tremors and high-effect.
Description
Technical field
The utility model is related to dc motor, more particularly to a kind of closed assembly dc motor and use closed assembly electricity
The electric pushrod of machine.
Background technology
Direct current generator has the advantages that small volume, simple in construction, efficiency high, is the indispensable core of all kinds of electronic products
Part.The centre of brushed DC motor is permanent-magnet stator and rotor, and the two ends of rotor are bearing and commutator.In order to improve motor
Efficiency reduces magnetic loss it is necessary to reduce the gap between rotor and stator；But precondition be must assure that it is sufficiently high coaxial
Degree, rotor eccentricity error can not be too big, and otherwise, rotor core can be with stator friction.Further, since concentricity is not high, motor is made an uproar
Sound can also be increased.Modern processing has been greatly improved, and part's machining errors are greatly reduced, and caused bias is mainly dress
Caused by during matching somebody with somebody.In order to reduce noise, electric efficiency is improved, it is key factor to improve assembly precision.Existing assembling knot
The bearing bracket stand of two ends of rotor is mainly riveting in structure or screw is fixed, even if mismachining tolerance is small again, and assembling also is difficult to ensure high-precision
Degree.
Utility model content
The utility model is the above mentioned problem of prior art to be solved, propose it is a kind of high accuracy assembling closed assembly motor and
Use the electric pushrod of the closed assembly motor.
In order to solve the above technical problems, the utility model proposes technical scheme be a kind of closed assembly motor of design, it has
Outer tube, and be from bottom to top stacked in successively in outer tube bottom end cover, encoder fixed seat, bottom end bearing frame, carbon brush holder,
Stator, upper end bearing bracket stand, upper end cover；Wherein bottom end bearing frame and carbon brush holder can be combined；Rotor assembly is by rotating shaft, commutation
Device and rotor composition, rotor are placed in stator, commutator and carbon brush sliding contact, and rotating shaft two ends are used, bottom end bearing support, under
End bearing is fixed in bottom end bearing frame, and upper end bearing is fixed in the bearing bracket stand of upper end, is also inlayed and commutator in the carbon brush holder
The carbon brush and brush box of cooperation；The internal key for positioning is provided with vertically on the madial wall of the outer tube, in the encoder
Fixed seat, carbon brush holder, bottom end bearing frame, the lateral wall of stator and upper end bearing bracket stand are provided with the keyway cooperated with internal key.
For the reducing motor for needing low speed to export, reduction of speed is exported after the closed assembly motor via reducer, and the closed assembly motor is with subtracting
Fast machine is stacked in same outer tube, and the keyway cooperated with the outer tube internal key is also provided with the lateral wall of the reductor,
Reductor is compressed with upper end cover again after being stacked with motor.The internal key of the outer tube is provided with multiple, and along overcoat
Pipe madial wall is uniformly distributed；Outside the encoder fixed seat, carbon brush holder, bottom end bearing frame, stator, upper end bearing bracket stand and reductor
Keyway on the wall of side cooperates also provided with same multiple with internal key.
The utility model also proposed a kind of electric pushrod of use closed assembly motor, and it has and closed assembly motor output end coupling
Close the screw mandrel of connection, the feed screw nut in a tubular form that is enclosed on the outside of screw mandrel, the closed assembly motor has an outer tube, and by lower
On be stacked in successively bottom end cover in outer tube, encoder fixed seat, carbon brush holder, bottom end bearing frame, stator, upper end bearing bracket stand,
Upper end cover；Wherein bottom end bearing frame and carbon brush holder can be combined；Rotor assembly is made up of rotating shaft, commutator and rotor, is turned
Son is placed in stator, commutator and carbon brush sliding contact, and rotating shaft two ends are used, bottom end bearing support, and bottom end bearing fixes lower end
In bearing bracket stand, upper end bearing is fixed in the bearing bracket stand of upper end, and the carbon brush and brush coordinated with commutator is also inlayed in the carbon brush holder
Box；On the madial wall of the outer tube vertically be provided with for position internal key, the encoder fixed seat, carbon brush holder,
The lateral wall of bottom end bearing frame, stator and upper end bearing bracket stand is provided with the keyway cooperated with internal key.The upper end bearing bracket stand
A reductor is fixed between upper end cover, the reductor is driven and will exported after the rotating speed reduction of rotating shaft by the rotating shaft；Institute
Upper end cover is stated to be provided with through hole, be easy to reductor and the end of the screw mandrel to be connected；Also it is provided with the lateral wall of the reductor
The keyway cooperated with the internal key.The internal key of the outer tube is provided with multiple, and uniformly divides along outer tube madial wall
Cloth；Keyway on the encoder fixed seat, carbon brush and bottom end bearing frame, stator, reductor and upper end bearing bracket stand lateral wall with
Internal key cooperates also provided with same multiple.The output shaft of the reductor is provided with connecting shaft structure, and the bottom of the screw mandrel is made
The structure coordinated with speed reducer output shaft.Spring is cased with the outside of the screw mandrel.Interior dust-proof sleeve pipe is cased with the outside of the spring
With outer dust-proof sleeve pipe.
The closed assembly motor and electric pushrod disclosed using the utility model, parts are not by radial direction in assembling process
Assembling active force, it is to avoid the bias that part deformation and displacement are brought, independent of the erection skill of assembler, assembly precision
Height, can effectively realize low noise, smaller tremors and high-effect.
Brief description of the drawings
Fig. 1 is closed assembly motor explosive decomposition view；
Fig. 2 is electric pushrod sectional view.
Embodiment
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, is described in further detail to the utility model.It should be appreciated that specific embodiment described herein is used only for explaining this
Utility model, is not used to limit the utility model.
The utility model discloses a kind of closed assembly motor, and it has an outer tube 10, and from bottom to top closed assembly is outside successively
Bottom end cover 1, encoder fixed seat 2, carbon brush and bottom end bearing frame 4, stator, upper end bearing bracket stand 8, upper end cover 11 in sleeve pipe；Its
Commutator 5 and rotor 6 of the middle rotor assembly provided with rotating shaft 12, string in rotating shaft, rotating shaft two ends are used, bottom end bearing support, under
End bearing 13 is fixed in carbon brush and bottom end bearing frame, and upper end bearing 14 is fixed in the bearing bracket stand of upper end, the carbon brush and lower end
The carbon brush coordinated with commutator is also inlayed in bearing bracket stand 4；It is provided with vertically for positioning on the madial wall of the outer tube
Internal key 16, is provided with the lateral wall of the encoder fixed seat 2, carbon brush and bottom end bearing frame 4, stator 7 and upper end bearing bracket stand 8
The keyway 18 cooperated with internal key.
Modern mechanical machining accuracy is higher, and the axiality after each component processing is very high, during assembling, by the guiding of internal key 16
Encoder fixed seat 2, carbon brush and bottom end bearing frame 4, stator, upper end bearing bracket stand 8 are fitted into outer tube 10, then by bottom end cover
1 and upper end cover 11 compress.So each part is only by the thrust of axial direction, any power radially applied without any assembling,
Internal key 16 and the high accuracy of keyway 18 coordinate, and than prior art, diametrically rivet or screw are assembled, and precision aspect obtains pole
It is big to improve.Avoid radial direction stress deformation and the eccentric error that brings of displacement, thus greatly reduce it is eccentric bring make an uproar
Sound, vibrations and loss in efficiency.It may be noted that the outside of bottom end cover 1 and upper end cover 11 is provided with external screw thread in the preferred embodiment, outside
The two ends of sleeve pipe 10 are provided with the internal thread matched；Upper and lower end cap is screwed with the two ends of outer tube 10 respectively, so that by encoder fixed seat
2nd, carbon brush and bottom end bearing frame 4, stator, upper end bearing bracket stand 8 are compressed.
Because the rotating speed of DC motor rotor is very fast, with when generally require to slow down；Simultaneously for needing high pulling torque
Output to increase output torque by reductor with place be most common method.So in the preferred embodiment in upper end
A reductor 9 is fixed between bearing bracket stand 8 and upper end cover 11, the bottom of reductor is linked with the rotating shaft 12, by turning for rotating shaft
Exported after prompt drop is low from the upper end of reductor；The upper end cover 11 is provided with through hole, is easy to reductor to be connected with external equipment.Institute
State the keyway 18 for being also provided with and being cooperated with the internal key on the lateral wall of reductor.
The internal key 16 of the outer tube sets different provided with multiple according to the outer tube of different-diameter in the preferred embodiment
The internal key of quantity, internal key is uniformly distributed along outer tube madial wall；In the encoder fixed seat 2, carbon brush and bottom end bearing frame
4th, the keyway 18 on stator 7, reductor 9 and the lateral wall of upper end bearing bracket stand 8 cooperates also provided with same multiple with internal key.Do not say
And explain, size, quantity and the distributing position of internal key and keyway are all identicals.
The utility model further discloses a kind of electric pushrod of use closed assembly motor, referring to the schematic cross-sectional view shown in Fig. 2,
It has the screw mandrel 20 being of coupled connections with closed assembly motor output end, the feed screw nut 21 in a tubular form being enclosed on the outside of screw mandrel, described
Closed assembly motor has outer tube 10, and bottom end cover 1, encoder fixed seat 2, the carbon being from bottom to top stacked in successively in outer tube
Brush and bottom end bearing frame 4, stator, upper end bearing bracket stand 8, upper end cover 11；Wherein rotor assembly is provided with rotating shaft 12, gone here and there in rotating shaft
Commutator 5 and rotor 6, rotating shaft two ends are used, bottom end bearing support, and bottom end bearing 13 is fixed in carbon brush and bottom end bearing frame,
Upper end bearing 14 is fixed in the bearing bracket stand of upper end, and the carbon brush coordinated with commutator is also inlayed in carbon brush and the bottom end bearing frame 4
And brush box；On the madial wall of the outer tube vertically be provided with for position internal key 16, the encoder fixed seat 2,
The lateral wall of carbon brush and bottom end bearing frame 4, stator 7 and upper end bearing bracket stand 8 is provided with the keyway 18 cooperated with internal key.Closed assembly
Motor drive screw 20 is rotated, screw mandrel and the engagement of feed screw nut 21, promotes feed screw nut 21 to be axially moveable.Feed screw nut
The object promoted the need for 21 classes of one end hinged door one away from closed assembly motor, thereby forms the effect of electric pushrod.
Because the rotating speed of DC motor rotor is very fast, with when generally require to slow down；Simultaneously for needing high pulling torque
Output to increase output torque by reductor with place be most common method, and the exactly low speed that electric pushrod needs
High pulling torque.So a reductor 9 is fixed between upper end bearing bracket stand 8 and upper end cover 11 in the preferred embodiment, reductor
Bottom is linked with the rotating shaft 12, will be exported after the rotating speed reduction of rotating shaft from the upper end of reductor；The upper end cover 11 is provided with
Through hole, it is easy to reductor to be connected with external equipment.Also it is provided with what is cooperated with the internal key on the lateral wall of the reductor
Keyway 18.
The internal key 16 of the outer tube sets different provided with multiple according to the outer tube of different-diameter in the preferred embodiment
The internal key of quantity, internal key is uniformly distributed along outer tube madial wall；In the encoder fixed seat 2, carbon brush and bottom end bearing frame
4th, the keyway 18 on stator 7, reductor 9 and the lateral wall of upper end bearing bracket stand 8 cooperates also provided with same multiple with internal key.Do not say
And explain, size, quantity and the distributing position of internal key and keyway are all identicals.
In the preferred embodiment, the output end of the reductor against the through hole of upper end cover 11 is provided with splined hole, the screw mandrel
The splined shaft engaged with splined hole is made in 20 bottom.
In the preferred embodiment, the outside of the screw mandrel 20 is cased with spring 23.
In the preferred embodiment, the outside of the spring 23 is cased with interior dust-proof sleeve pipe 24 and outer dust-proof sleeve pipe 25.
Above example is by way of example only, non-to provide constraints.It is any without departing from the application spirit and scope, and to it
The equivalent modifications of progress or change, are intended to be limited solely by among claims hereof scope.
Claims (9)
1. a kind of closed assembly motor, it is characterised in that：With outer tube（10）, and be from bottom to top stacked in successively in outer tube
Bottom end cover（1）, encoder fixed seat（2）, carbon brush and bottom end bearing frame（4）, stator（7）, upper end bearing bracket stand（8）, upper end cover
（11）；Rotating shaft is wherein provided with the inside of stator（12）, commutator of the string in rotating shaft（5）And rotor（6）, rotating shaft two ends are with upper and lower
End bearing is supported, bottom end bearing（13）It is fixed in carbon brush and bottom end bearing frame, upper end bearing（14）It is fixed on upper end bearing bracket stand
It is interior, carbon brush and the bottom end bearing frame（4）Inside also inlay the carbon brush and brush box coordinated with commutator；In the inner side of the outer tube
The internal key for positioning is provided with wall vertically（16）, in the encoder fixed seat（2）, carbon brush and bottom end bearing frame（4）, it is fixed
Son（7）With upper end bearing bracket stand（8）Lateral wall be provided with internal key cooperate keyway（18）.
2. closed assembly motor as claimed in claim 1, it is characterised in that：The upper end bearing bracket stand（8）With upper end cover（11）Between
Fix a reductor（9）, the reductor is by the rotating shaft（12）Drive and will be exported after the rotating speed reduction of rotating shaft；On described
End cap（11）Provided with through hole, it is easy to reductor to be connected with external equipment；On the lateral wall of the reductor also be provided with it is described
The keyway that internal key cooperates（18）.
3. closed assembly motor as claimed in claim 2, it is characterised in that：The internal key of the outer tube（16）Provided with multiple, and
It is uniformly distributed along outer tube madial wall；The encoder fixed seat（2）, carbon brush and bottom end bearing frame（4）, stator（7）, slow down
Machine（9）With upper end bearing bracket stand（8）Keyway on lateral wall（18）Cooperated also provided with same multiple with internal key.
4. a kind of electric pushrod of use closed assembly motor, with the screw mandrel being of coupled connections with closed assembly motor output end（20）, be enclosed on
Feed screw nut in a tubular form on the outside of screw mandrel（21）, it is characterised in that：The closed assembly motor has outer tube（10）, and under
And on be stacked in bottom end cover in outer tube successively（1）, encoder fixed seat（2）, carbon brush and bottom end bearing frame（4）, stator
（7）, upper end bearing bracket stand（8）, upper end cover（11）；Rotating shaft is wherein provided with the inside of stator（12）, commutator of the string in rotating shaft（5）With
Rotor（6）, rotating shaft two ends are used, bottom end bearing support, bottom end bearing（13）It is fixed in carbon brush and bottom end bearing frame, upper shaft
Hold（14）It is fixed in the bearing bracket stand of upper end, carbon brush and the bottom end bearing frame（4）Inside also inlay with commutator coordinate carbon brush and
Brush box；It is provided with the internal key for positioning vertically on the madial wall of the outer tube（16）, in the encoder fixed seat
（2）, carbon brush and bottom end bearing frame（4）, stator（7）With upper end bearing bracket stand（8）Lateral wall be provided with and internal key cooperate
Keyway（18）.
5. as claimed in claim 4 using the electric pushrod of closed assembly motor, it is characterised in that：The upper end bearing bracket stand（8）With
Upper end cover（11）Between fix a reductor（9）, the reductor is by the rotating shaft（12）Drive and reduce the rotating speed of rotating shaft
After export；The upper end cover（11）Provided with through hole, it is easy to reductor and the screw mandrel（20）End connection；The reductor
Lateral wall on also be provided with the internal key cooperate keyway（18）.
6. as claimed in claim 5 using the electric pushrod of closed assembly motor, it is characterised in that：The internal key of the outer tube（16）
Provided with multiple, and it is uniformly distributed along outer tube madial wall；The encoder fixed seat（2）, carbon brush and bottom end bearing frame
（4）, stator（7）, reductor（9）With upper end bearing bracket stand（8）Keyway on lateral wall（18）Cooperated also provided with same with internal key
Sample is multiple.
7. as claimed in claim 6 using the electric pushrod of closed assembly motor, it is characterised in that：The reductor is against upper end cover
（11）The output end of through hole is provided with splined hole, the screw mandrel（20）Bottom the splined shaft engaged with splined hole is made.
8. as claimed in claim 7 using the electric pushrod of closed assembly motor, it is characterised in that：The screw mandrel（20）Outer sheath
There is spring（23）.
9. as claimed in claim 8 using the electric pushrod of closed assembly motor, it is characterised in that：The spring（23）Outer sheath
There is interior dust-proof sleeve pipe（24）With outer dust-proof sleeve pipe（25）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720080990.3U CN206533222U (en) | 2017-01-22 | 2017-01-22 | A kind of closed assembly motor and the electric pushrod using the closed assembly motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720080990.3U CN206533222U (en) | 2017-01-22 | 2017-01-22 | A kind of closed assembly motor and the electric pushrod using the closed assembly motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206533222U true CN206533222U (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720080990.3U Active CN206533222U (en) | 2017-01-22 | 2017-01-22 | A kind of closed assembly motor and the electric pushrod using the closed assembly motor |
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|---|---|
| CN (1) | CN206533222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092458A (en) * | 2018-01-29 | 2018-05-29 | 深圳市云图电装系统有限公司 | Nose assembly and electric pushrod |
-
2017
- 2017-01-22 CN CN201720080990.3U patent/CN206533222U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092458A (en) * | 2018-01-29 | 2018-05-29 | 深圳市云图电装系统有限公司 | Nose assembly and electric pushrod |
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