CN206708379U - The spindle nose sealing structure of grinding head motor - Google Patents
The spindle nose sealing structure of grinding head motor Download PDFInfo
- Publication number
- CN206708379U CN206708379U CN201720164749.9U CN201720164749U CN206708379U CN 206708379 U CN206708379 U CN 206708379U CN 201720164749 U CN201720164749 U CN 201720164749U CN 206708379 U CN206708379 U CN 206708379U
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- sealing
- lid
- spindle nose
- grinding head
- annular
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A kind of spindle nose sealing structure of grinding head motor, including interior sealing lid and external seal lid, described interior sealing lid one end is connected with electric motor end cap, there is gap between the other end and the external seal lid, form non-contacting sealing structure, there is the air channel of annular, the radial outside of the interior sealing lid has the passage connected with the air channel, and the interior sealing is covered in the gap location with the venthole for connecting the air channel in the interior sealing lid.The utility model spindle nose sealing structure can avoid water and dust enters motor internal, good sealing effect, improve the life-span of motor.
Description
Technical field
It the utility model is related to machine field, more particularly to a kind of spindle nose sealing structure of grinding head motor.
Background technology
Grinding head motor is equally also suitable because its excellent performance is widely used in grinding, bores the fields such as milling at present
In miniature aperture and raceway groove of high-speed grinding bearing etc..
Grinding head motor causes motor internal to ooze because the particularity of its working environment is often along with a large amount of water smokes and dust
Water, cause burn-down of electric motor or reduce service life.
Utility model content
Based on this, for above-mentioned technical problem, there is provided a kind of spindle nose sealing structure of grinding head motor.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：
A kind of spindle nose sealing structure of grinding head motor, including interior sealing lid and external seal lid, described interior sealing lid one end
It is connected with electric motor end cap, there is gap between the other end and the external seal lid, forms non-contacting sealing structure, it is described interior close
There is the air channel of annular in capping, the radial outside of the interior sealing lid has the passage connected with the air channel, and
The interior sealing covers the venthole for having the connection air channel in the gap location.
The non-contacting sealing structure includes labyrinth seal structure and helixseal structure.
The interior sealing covers radially has first annular sealing tooth and first annular groove successively from outside to inside, described outer
Radially there is the side wall being sheathed on the outside of the first annular sealing tooth successively from outside to inside, by described first annular on closure
The second annular groove of tooth insertion and the second ring packing teeth of the insertion first annular groove are sealed, forms labyrinth seal knot
Structure, screw thread is respectively provided with the inside of the outside of the first annular sealing tooth and the side wall, forms helixseal structure.
The venthole is positioned at the first annular sealing tooth exterior bottom.
Oil sealing is provided between the interior sealing lid and electric machine main shaft.
Sealing ring is provided between the interior sealing lid and the electric motor end cap.
The utility model spindle nose sealing structure can avoid water and dust from entering motor internal, good sealing effect, improve electricity
The life-span of machine.
Brief description of the drawings
The utility model is described in detail with reference to the accompanying drawings and detailed description：
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in figure 1, a kind of spindle nose sealing structure of grinding head motor, including interior sealing lid 110 and external seal lid 120.
The one end of interior sealing lid 110 is connected with electric motor end cap 21, has gap between the other end and external seal lid 120, is formed
Non-contacting sealing structure.
There is the air channel 111 of annular, the radial outside of interior sealing lid 110 has and air channel 111 in interior sealing lid 110
The passage 112 of connection, and the interior sealing lid 110 has the venthole 113 of connection air channel 111 in above-mentioned gap location.
Gas is injected to passage 112, gas flows into interior sealing lid 110 and external seal through air channel 111, venthole 113
In gap between lid 120, avoid water and dust enters motor internal, good sealing effect, improve the life-span of motor.
Wherein, non-contacting sealing structure includes labyrinth seal structure and helixseal structure A.
Specifically, radially there is the first annular sealing ring of tooth 114 and first successively from outside to inside on interior sealing lid 110
Shape groove, radially there is the side wall 121 for being sheathed on the first annular outside of sealing tooth 114, quilt successively from outside to inside on external seal lid 120
The second annular groove and the second ring packing teeth 122 of the first annular groove of insertion that first annular sealing tooth 114 inserts, form fan
Palace sealing structure.
Accordingly, venthole 113 is positioned at the first annular sealing exterior bottom of tooth 114.
The outside of first annular sealing tooth 114 and the inner side of side wall 121 are respectively provided with screw thread, form helixseal structure A.
In order to further improve sealing property, oil sealing is provided between interior sealing lid 110 and electric machine main shaft 22, certainly, also may be used
With according to operating mode needs, without using oil sealing.
Sealing ring 130 is provided between interior sealing lid 110 and electric motor end cap 21, sealing property is more preferably.
But those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to explanation originally
Utility model, and being not used as to restriction of the present utility model, if in spirit of the present utility model, to
Change, the modification of the upper embodiment will all fall in Claims scope of the present utility model.
Claims (6)
1. a kind of spindle nose sealing structure of grinding head motor, it is characterised in that described interior close including interior sealing lid and external seal lid
Capping one end is connected with electric motor end cap, has gap between the other end and the external seal lid, forms non-contacting sealing structure,
There is the air channel of annular, the radial outside of the interior sealing lid has what is connected with the air channel to lead in the interior sealing lid
Stomata, and the interior sealing covers the venthole for having the connection air channel in the gap location.
2. the spindle nose sealing structure of a kind of grinding head motor according to claim 1, it is characterised in that described contactless close
Seal structure includes labyrinth seal structure and helixseal structure.
3. the spindle nose sealing structure of a kind of grinding head motor according to claim 2, it is characterised in that the interior sealing covers
Radially there is first annular sealing tooth and first annular groove successively from outside to inside, the external seal cover radially from outside to inside according to
It is secondary that there is the side wall being sheathed on the outside of the first annular sealing tooth, the second annular groove by the first annular sealing tooth insertion
And the second ring packing teeth of the insertion first annular groove, labyrinth seal structure is formed, the first annular sealing tooth
Screw thread is respectively provided with the inside of outside and the side wall, forms helixseal structure.
4. the spindle nose sealing structure of a kind of grinding head motor according to claim 3, it is characterised in that the venthole is located at
The first annular sealing tooth exterior bottom.
A kind of 5. spindle nose sealing structure of grinding head motor according to claim 1 or 4, it is characterised in that the interior sealing
Oil sealing is provided between lid and electric machine main shaft.
A kind of 6. spindle nose sealing structure of grinding head motor according to claim 5, it is characterised in that the interior sealing lid with
Sealing ring is provided between the electric motor end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720164749.9U CN206708379U (en) | 2017-02-23 | 2017-02-23 | The spindle nose sealing structure of grinding head motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720164749.9U CN206708379U (en) | 2017-02-23 | 2017-02-23 | The spindle nose sealing structure of grinding head motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206708379U true CN206708379U (en) | 2017-12-05 |
Family
ID=60469121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720164749.9U Active CN206708379U (en) | 2017-02-23 | 2017-02-23 | The spindle nose sealing structure of grinding head motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206708379U (en) |
-
2017
- 2017-02-23 CN CN201720164749.9U patent/CN206708379U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |