CN205901461U - Direct current motor magnetic shoe protection device - Google Patents
Direct current motor magnetic shoe protection device Download PDFInfo
- Publication number
- CN205901461U CN205901461U CN201620916298.5U CN201620916298U CN205901461U CN 205901461 U CN205901461 U CN 205901461U CN 201620916298 U CN201620916298 U CN 201620916298U CN 205901461 U CN205901461 U CN 205901461U
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- magnetic shoe
- positioning sleeve
- position sleeve
- casing
- magnetic
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Abstract
The utility model provides a direct current motor magnetic shoe protection device, including casing, magnetic shoe, first magnetic shoe position sleeve, second magnetic shoe position sleeve and magnetic shoe sheath, wherein the casing is one end open -ended tubular structure, first magnetic shoe position sleeve and second magnetic shoe position sleeve are the annular structure and install the inner chamber at the casing, all are equipped with the same annular groove on the first magnetic shoe position sleeve terminal surface relative with second magnetic shoe position sleeve, the magnetic shoe setting just is located between first magnetic shoe position sleeve and the second magnetic shoe position sleeve at the casing inner chamber, the magnetic shoe protective sheath setting of tubular structure between first magnetic shoe position sleeve and second magnetic shoe position sleeve and its both ends block respectively in the annular groove of first magnetic shoe position sleeve and second magnetic shoe position sleeve. The utility model discloses a magnetic shoe and rotor are kept apart to the magnetic shoe protective sheath, have prevented magnetic shoe piece contact rotor, fix the magnetic shoe protective sheath through the annular groove, prevented that the magnetic shoe protective sheath from taking place the incline when the motor moves, further guaranteed the normal operating of motor.
Description
Technical field
The utility model is related to direct current generator field, more particularly, to a kind of magnetic shoe protection dress for permanent magnet DC motor
Put.
Background technology
Direct current generator refers to enable the electric rotating machine of direct current energy and mechanical energy mutually conversion, and its internal main inclusion is fixed
Son and rotor two large divisions's structure, wherein stator are to keep geo-stationary motionless part when direct current generator runs, and its purposes is
It is used for producing magnetic field, the stator of traditional direct current generator is to be constituted with coil windings, produces by being passed through electric current in coil
Magnetic field, because the volume of coil windings is larger, creates a fixed limit to aspects such as the overall volume of direct current generator, weight, efficiency
System, in order to solve this problem, people produce magnetic field by substituting coil windings using permanent magnet, because permanent magnet can basis
Demand make variously-shaped, wherein typically do tile shape and be referred to as magnetic shoe so that the volume of direct current generator diminish, weight become
Gently, in hgher efficiency, but because this kind of magnetic shoe is usually ferrite, neodymium iron boron or alnico magnet, have the shortcomings that frangible, in vapour
Magnetic shoe is easily caused to crush because receiving external force collision in car traveling or machine operation procedure, consequent magnetic shoe chip
Make it stuck once entering into and then can affecting the normal operation of rotor in the space between rotor and stator, or even can damage and turn
Minor structure, finally damages motor.
Utility model content
For the deficiency in the presence of prior art, the utility model provides a kind of direct current generator magnetic shoe protection device,
It can effectively prevent magnetic shoe chip from entering in the space between rotor and stator, and then prevents rotor stuck and motor damage.
For achieving the above object, the utility model employs following technical scheme:
A kind of direct current generator magnetic shoe protection device, including casing, magnetic shoe, the first magnetic shoe positioning sleeve, the second magnetic shoe positioning sleeve
With magnetic shoe sheath, wherein: described casing be overall be in cylindrical and one end is provided with the tubular structure of opening；
Described first magnetic shoe positioning sleeve and the second magnetic shoe positioning sleeve are circulus and the internal diameter all with casing for its external diameter
Match, described first magnetic shoe positioning sleeve and the second magnetic shoe positioning sleeve are arranged on the inner chamber of casing, and described first magnetic shoe positioning
It is provided with space, near casing open at one end, the first magnetic shoe is fixed for the wherein first magnetic shoe protective case between set and the second magnetic shoe positioning sleeve
The annular groove of same outer diameter and internal diameter is equipped with the position set end face relative with the second magnetic shoe positioning sleeve；
The external diameter of described magnetic shoe is matched with the internal diameter of casing, and its internal diameter is matched with the external diameter of annular groove, described
Magnetic shoe is arranged on chassis cavity and is located in the space between the first magnetic shoe positioning sleeve and the second magnetic shoe positioning sleeve；
Described magnetic shoe protective case is that tubular structure and its external diameter match with the internal diameter of magnetic shoe, its external diameter and internal diameter is equal and ring
The external diameter of connected in star and internal diameter match, the protection of described magnetic shoe be set on the first magnetic shoe positioning sleeve and the second magnetic shoe positioning sleeve it
Between and its two ends be respectively clamped in the first magnetic shoe positioning sleeve and the annular groove of the second magnetic shoe positioning sleeve.
Further, the thickness of described magnetic shoe protective case is 0.1mm.
Compared to prior art, the utility model has the advantages that
1. the utility model, by being arranged on the magnetic shoe protective case inside magnetic shoe, has been effectively isolated magnetic shoe and rotor, thus
Prevent magnetic shoe chip contact rotor, the effect of being effectively protected is served to rotor；
2. the utility model by the annular groove that is arranged on the first magnetic shoe positioning sleeve and the second magnetic shoe positioning sleeve to magnetic
Watt protective case is fixed, effectively prevent magnetic shoe protective case glance off in motor operation and with the first magnetic shoe positioning sleeve or
Second magnetic shoe positioning sleeve produces gap, and then avoids magnetic shoe chip and drain to rotor from gap location；Effectively prevent magnetic simultaneously
Watt protective case directly contacts rotor, and then avoids the problem that magnetic shoe protective case is clashed into and deformed by rotor, further
Protect rotor and magnetic shoe, thus ensure that the normal operation of motor.
Brief description
Fig. 1 is structure sectional view of the present utility model.
Fig. 2 is a enlarged schematic partial view in Fig. 1.
Fig. 3 is b enlarged schematic partial view in Fig. 1.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment further illustrates to the technical scheme in the utility model.
As illustrated, the utility model proposes a kind of direct current generator magnetic shoe protection device, including casing 1, magnetic shoe 2,
One magnetic shoe positioning sleeve 3, the second magnetic shoe positioning sleeve 4 and magnetic shoe sheath 5, wherein: described casing 1 is that entirety is in cylindrical and one end sets
There is the tubular structure of opening 11；
Described first magnetic shoe positioning sleeve 3 and the second magnetic shoe positioning sleeve 4 is circulus and its external diameter is all interior with casing 1
Footpath matches, and described first magnetic shoe positioning sleeve 3 and the second magnetic shoe positioning sleeve 4 are arranged on the inner chamber of casing 1, and described first magnetic shoe
Be provided with space between positioning sleeve 3 and the second magnetic shoe positioning sleeve 4, the wherein first magnetic shoe protective case 3 near casing 1 opening 11 one end,
The annular groove 6 of same outer diameter and internal diameter is equipped with the first magnetic shoe positioning sleeve 3 end face relative with the second magnetic shoe positioning sleeve 4；
The external diameter of described magnetic shoe 2 and the internal diameter of casing 1 match, and its internal diameter is matched with the external diameter of annular groove 6, institute
State magnetic shoe 2 to be arranged on casing 1 inner chamber and be located in the space between the first magnetic shoe positioning sleeve 3 and the second magnetic shoe positioning sleeve 4；
Described magnetic shoe protective case 5 is the tubular structure of thickness 0.1mm, and its external diameter is matched with the internal diameter of magnetic shoe 2, outside it
Footpath and internal diameter are all matched with the external diameter of annular groove 6 and internal diameter, and described magnetic shoe protective case 5 is arranged on the first magnetic shoe positioning sleeve 3
With second between magnetic shoe positioning sleeve 4 and its two ends is respectively clamped into the first magnetic shoe positioning sleeve 3 and the annular of the second magnetic shoe positioning sleeve 4 is recessed
In groove 6.
The utility model passes through magnetic shoe protective case 5, has been effectively isolated magnetic shoe 2 and rotor, thus prevent magnetic shoe chip and connect
Tactile rotor, serves, to rotor, the effect of being effectively protected；Magnetic shoe protective case 5 is fixed, effectively by annular groove 6 simultaneously
Prevent magnetic shoe protective case 5 to glance off in motor operation and produce gap with magnetic shoe positioning sleeve, and then it is broken to avoid magnetic shoe
Bits drain to rotor from gap location；Effectively prevent magnetic shoe protective case 5 simultaneously and directly contact rotor, and then avoid magnetic shoe and protect
The problem that sheath 5 is clashed into and deformed by rotor, protects rotor and magnetic shoe 2, further thus ensure that the normal of motor
Run.
Finally illustrate, above example only in order to the technical solution of the utility model to be described and unrestricted, although ginseng
According to preferred embodiment, the utility model is described in detail, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent, the objective without deviating from technical solutions of the utility model and model
Enclose, it all should be covered in the middle of right of the present utility model.
Claims (2)
1. a kind of direct current generator magnetic shoe protection device it is characterised in that: include casing, magnetic shoe, the first magnetic shoe positioning sleeve, the second magnetic
Watt positioning sleeve and magnetic shoe sheath, wherein: described casing be overall be in cylindrical and one end is provided with the tubular structure of opening；
Described first magnetic shoe positioning sleeve and the second magnetic shoe positioning sleeve are circulus and the internal diameter phase all with casing for its external diameter
Join, described first magnetic shoe positioning sleeve and the second magnetic shoe positioning sleeve are arranged on the inner chamber of casing, and described first magnetic shoe positioning sleeve and
It is provided with space, the wherein first magnetic shoe protective case is near casing open at one end, the first magnetic shoe positioning sleeve between second magnetic shoe positioning sleeve
The annular groove of same outer diameter and internal diameter is equipped with the end face relative with the second magnetic shoe positioning sleeve；
The external diameter of described magnetic shoe is matched with the internal diameter of casing, and its internal diameter is matched with the external diameter of annular groove, described magnetic shoe
It is arranged on chassis cavity and be located in the space between the first magnetic shoe positioning sleeve and the second magnetic shoe positioning sleeve；
Described magnetic shoe protective case is tubular structure and its external diameter is matched with the internal diameter of magnetic shoe, and its external diameter and internal diameter are all recessed with annular
The external diameter of groove and internal diameter match, the protection of described magnetic shoe be set between the first magnetic shoe positioning sleeve and the second magnetic shoe positioning sleeve and
Its two ends is respectively clamped in the first magnetic shoe positioning sleeve and the annular groove of the second magnetic shoe positioning sleeve.
2. as claimed in claim 1 a kind of direct current generator magnetic shoe protection device it is characterised in that: the thickness of described magnetic shoe protective case
Spend for 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620916298.5U CN205901461U (en) | 2016-08-22 | 2016-08-22 | Direct current motor magnetic shoe protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620916298.5U CN205901461U (en) | 2016-08-22 | 2016-08-22 | Direct current motor magnetic shoe protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205901461U true CN205901461U (en) | 2017-01-18 |
Family
ID=57778896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620916298.5U Active CN205901461U (en) | 2016-08-22 | 2016-08-22 | Direct current motor magnetic shoe protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205901461U (en) |
-
2016
- 2016-08-22 CN CN201620916298.5U patent/CN205901461U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |