CN204213348U - The two-way consistent seal structure of a kind of axle head - Google Patents
The two-way consistent seal structure of a kind of axle head Download PDFInfo
- Publication number
- CN204213348U CN204213348U CN201420557657.3U CN201420557657U CN204213348U CN 204213348 U CN204213348 U CN 204213348U CN 201420557657 U CN201420557657 U CN 201420557657U CN 204213348 U CN204213348 U CN 204213348U
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- axle
- lower cover
- body lower
- bearing gland
- sleeve
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Abstract
The utility model discloses the two-way consistent seal structure of a kind of axle head, be arranged at the axle head of electro spindle, comprise be installed in body bottom body lower cover, be installed in the bearing gland between body lower cover and body bottom and be sheathed on the axle sleeve of axle outer core, the outer wall of axle sleeve is adjacent with bearing gland with described body lower cover; Described body lower cover, between bearing gland and axle sleeve, form annular airflow chamber; Be provided with ring air drain between described axle outer core and sleeve lining, described axle sleeve is provided with the pore of the described annular airflow chamber of several connection and ring air drain; The first air gap be in communication with the outside is provided with between described body lower cover and axle sleeve; Axial interstice is provided with between described axle outer core and sleeve lining.The utility model can realize axially and the sealing of radial two-way simultaneous, effectively prevents small objects from entering electro spindle inside, reaches splendid sealing effect.
Description
Technical field
The utility model relates to electric main shaft sealing construction, particularly relates to the two-way consistent seal structure of a kind of axle head.
Background technique
Electro spindle is new technology machine tool chief axis and spindle motor combined together occurred in numerical control machine tool field recent years, and it is together with techniques of linear motor, high-speed cutter technology, High-speed machining will be pushed to a New Times.Electro spindle is a kind of highi degree of accuracy, high rotating speed machining tool, and its requirement for sealing is also extremely harsh.
But at the processing site of electro spindle, there is various chip, dust, these small objects enter electro spindle inside, bearing can be caused to block, increase the frictional force of rotor and other assemblies, heating is aggravated, even burns electro spindle.
Model utility content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of axle head two-way consistent seal structure, to axial and radial two-way simultaneous sealing, effectively can prevent small objects from entering electro spindle inside, reach splendid sealing effect.
For achieving the above object, the utility model adopts following technological scheme:
The two-way consistent seal structure of a kind of axle head, be arranged at the axle head of electro spindle, described electro spindle is provided with body, the axis of body is equiped with axle core, and the end of body is provided with the bearing be articulated in by axle core on body; The two-way consistent seal structure of this axle head comprise be installed in body bottom body lower cover, be installed in the bearing gland between body lower cover and body bottom and be sheathed on the axle sleeve of axle outer core, the outer wall of axle sleeve is adjacent with bearing gland with described body lower cover; Described body lower cover, between bearing gland and axle sleeve, form annular airflow chamber; Be provided with ring air drain between described axle outer core and sleeve lining, described axle sleeve is provided with the pore of the described annular airflow chamber of several connection and ring air drain; Form the first air gap be communicated with described annular airflow chamber between the sidewall that described body lower cover is adjacent with axle sleeve, the latter end of this first air gap is in communication with the outside along the radial direction of electro spindle; Form an interstice be in communication with the outside between described axle outer core and sleeve lining, this interstice stretches out along the axis of electro spindle.
Further, the cross section of described ring air drain is isosceles trapezoid.
Further, described body and bearing gland inside are provided with the air flue being communicated with described annular airflow chamber.
Further, between described body bottom end and bearing gland, O RunddichtringO is equipped with between described bearing gland and body lower cover.
As mentioned above, the two-way consistent seal structure of a kind of axle head of the utility model is in electro spindle running, input described annular airflow intracavity gas to divide two-part to seal, a part is discharged along described first air gap, carry out radial seal, another part gas then enters ring air drain by described several pore, and in ring air drain, form uniform ring air-flow, evenly discharge finally by described interstice, carry out axial seal, this two-part gas ensure that axially and radial drifting dust sealing simultaneously, prevent dust greasy dirt etc. from entering main shaft inside, achieve high-performance sealed.
Accompanying drawing explanation
Fig. 1 is the sectional view of the two-way consistent seal structure of a kind of axle head of the utility model;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1.
Wherein: 1, body; 11, air flue; 2, axle core; 3, bearing; 4, body lower cover; 5, bearing gland; 6, axle sleeve; 61, pore; 8, annular airflow chamber; 9, ring air drain.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
Refer to Fig. 1 and Fig. 2, the utility model discloses the two-way consistent seal structure of a kind of axle head, and be arranged at the axle head of electro spindle, described electro spindle is provided with body 1, the axis of body 1 is equiped with axle core 2, the end of body 1 is provided with the bearing 3 described axle core 2 being articulated in body 1; The two-way consistent seal structure of this axle head comprise be installed in body 1 bottom body lower cover 4, be installed in the bearing gland 5 between body lower cover 4 and body 1 bottom and be sheathed on the axle sleeve 6 of axle core 2 outer wall, top and the described bearing 3 of described axle sleeve 6 abut against, and the outer wall of axle sleeve 6 is adjacent with bearing gland 5 with described body lower cover 4; Annular airflow chamber 8 is formed between described body lower cover 4, bearing gland 5 and axle 6 overlaps; Be provided with ring air drain 9 between described axle core 2 outer wall and axle sleeve 6 inwall, specifically in the present embodiment, this ring air drain 9 is arranged on the inwall of axle sleeve 6; Described axle sleeve 6 is provided with the pore 61 of the described annular airflow chamber 8 of several connection and ring air drain 9; Form the first air gap (not indicating in figure) be communicated with described annular airflow chamber 8 between the sidewall that described body lower cover 4 is adjacent with axle sleeve 6, the latter end of this first air gap is in communication with the outside along the radial direction of electro spindle; Form an interstice be in communication with the outside (not indicating in figure) between described axle core 2 outer wall and axle sleeve 6 inwall, this interstice stretches out along the axis of electro spindle; Specifically in the present embodiment, described body 1 and bearing gland 5 inside are also provided with the air flue 11 being communicated with described annular airflow chamber 8, concrete, this air flue 11 is divided into two sections, be opened in described body 1 inside and bearing gland 5 inside respectively, this air flue 11 is for introducing external high pressure air-flow in described annular airflow chamber 8.
Working principle of the present utility model is as follows:
High pressure draught inputs after in described annular airflow chamber 8, and air-flow is divided into two-part to seal, and a part is discharged along described first air gap, carries out radial seal; Another part gas then enters ring air drain 9 by described several pore 61, and uniform ring air-flow is formed in ring air drain 9, evenly discharge finally by described interstice, carry out axial seal, this two-part gas ensure that axially and radial drifting dust sealing simultaneously, prevent dust greasy dirt etc. from entering main shaft inside, achieve high-performance sealed.
Further, the cross section of described ring air drain 9 is isosceles trapezoid, and this profile design is conducive to air-flow and sprays more equably along described interstice.
Further, O RunddichtringO (not indicating in figure) is equipped with between described body 1 bottom end and bearing gland 5, between described bearing gland 5 and body lower cover 4, be conducive to the sealing improving this electro spindle further, prevent air-flow toward electro spindle internal leakage.
To one skilled in the art, according to technological scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the utility model claim.
Claims (4)
1. the two-way consistent seal structure of axle head, be arranged at the axle head of electro spindle, described electro spindle is provided with body, the axis of body is equiped with axle core, and the end of body is provided with the bearing be articulated in by axle core on body; It is characterized in that: the two-way consistent seal structure of this axle head comprise be installed in body bottom body lower cover, be installed in the bearing gland between body lower cover and body bottom and be sheathed on the axle sleeve of axle outer core, the outer wall of axle sleeve is adjacent with bearing gland with described body lower cover; Described body lower cover, between bearing gland and axle sleeve, form annular airflow chamber; Be provided with ring air drain between described axle outer core and sleeve lining, described axle sleeve is provided with the pore of the described annular airflow chamber of several connection and ring air drain; Form the first air gap be communicated with described annular airflow chamber between the sidewall that described body lower cover is adjacent with axle sleeve, the latter end of this first air gap is in communication with the outside along the radial direction of electro spindle; Form an interstice be in communication with the outside between described axle outer core and sleeve lining, this interstice stretches out along the axis of electro spindle.
2. the two-way consistent seal structure of axle head as claimed in claim 1, is characterized in that: the cross section of described ring air drain is isosceles trapezoid.
3. the two-way consistent seal structure of axle head as claimed in claim 1, is characterized in that: described body and bearing gland inside are provided with the air flue being communicated with described annular airflow chamber.
4. the two-way consistent seal structure of axle head as claimed in claim 1, is characterized in that: between described body bottom end and bearing gland, be equipped with O RunddichtringO between described bearing gland and body lower cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557657.3U CN204213348U (en) | 2014-09-25 | 2014-09-25 | The two-way consistent seal structure of a kind of axle head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557657.3U CN204213348U (en) | 2014-09-25 | 2014-09-25 | The two-way consistent seal structure of a kind of axle head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204213348U true CN204213348U (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420557657.3U Active CN204213348U (en) | 2014-09-25 | 2014-09-25 | The two-way consistent seal structure of a kind of axle head |
Country Status (1)
| Country | Link |
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| CN (1) | CN204213348U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903331A (en) * | 2017-04-27 | 2017-06-30 | 湖北毅兴智能装备股份有限公司 | It is a kind of walk shaft type complex milling machine tool guide pin bushing slagging device |
| CN107378626A (en) * | 2017-07-19 | 2017-11-24 | 广州市昊志机电股份有限公司 | A kind of safeguard structure of electro spindle |
| CN114310456A (en) * | 2022-02-10 | 2022-04-12 | 无锡阳光精机股份有限公司 | Magnetic material cutting main shaft end protection structure |
-
2014
- 2014-09-25 CN CN201420557657.3U patent/CN204213348U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903331A (en) * | 2017-04-27 | 2017-06-30 | 湖北毅兴智能装备股份有限公司 | It is a kind of walk shaft type complex milling machine tool guide pin bushing slagging device |
| CN107378626A (en) * | 2017-07-19 | 2017-11-24 | 广州市昊志机电股份有限公司 | A kind of safeguard structure of electro spindle |
| CN107378626B (en) * | 2017-07-19 | 2023-08-04 | 广州市昊志机电股份有限公司 | Protective structure of electric spindle |
| CN114310456A (en) * | 2022-02-10 | 2022-04-12 | 无锡阳光精机股份有限公司 | Magnetic material cutting main shaft end protection structure |
| CN114310456B (en) * | 2022-02-10 | 2023-08-11 | 无锡阳光精机股份有限公司 | Magnetic material cutting main shaft axle head protective structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |