CN210225155U - Electric spindle with sealed dustproof construction - Google Patents
Electric spindle with sealed dustproof construction Download PDFInfo
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- CN210225155U CN210225155U CN201921515510.7U CN201921515510U CN210225155U CN 210225155 U CN210225155 U CN 210225155U CN 201921515510 U CN201921515510 U CN 201921515510U CN 210225155 U CN210225155 U CN 210225155U
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- main shaft
- rotor
- spindle
- bearing
- vent hole
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Abstract
The utility model discloses an electricity main shaft with sealed dustproof construction, it includes: the main shaft rotor is sleeved on a bearing at one end of the main shaft rotor, a bearing pressing plate is positioned on one side of the bearing, the bearing pressing plate is pressed on a dustproof cover of the main shaft rotor, and the dustproof cover is fixed on the dustproof cover on the main shaft rotor; the bearing pressing plate and the dust cover are provided with vent holes communicated with each other, the air outlet of each vent hole is located in a gap at the joint of the dust cover and the spindle rotor, the outer wall of the spindle rotor located in the gap is provided with a plurality of airflow guide grooves, and when the electric spindle works, introduced sealing gas forms backflow in the airflow guide grooves to be pressurized to the outside so as to enhance the sealing effect. The utility model discloses an electricity main shaft with sealed dustproof construction sets up a plurality of air current guide slots through the outer wall at main shaft rotor, forms the backward flow in the air current guide slot to the sealed air current that gets into to it is pressurized to be solved when sealed air current is unstable, the problem that airtight ability descends.
Description
Technical Field
The utility model relates to an electricity main shaft technical field especially relates to an electricity main shaft with sealed dustproof construction.
Background
Dustproof electric main shaft front end on the current market mainly seals dustproof through high-pressure gas, through continuously blowing out high-pressure gas, guarantees that the main shaft can not get into inside the main shaft at during operation dust and aqueous vapor. The pure air-tight seal dustproof structure has higher requirement on an air source and high air consumption, a large amount of high-pressure air reversely enters the main shaft, the seal air is shunted, and the sealing capacity of the main shaft is reduced. In particular, the conventional sealing structure has a sharply decreased sealing ability in the case where the air pressure is unstable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide one kind and can still have higher sealing performance's electricity main shaft under the unstable condition of sealed air current.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an electric spindle having a sealed dust-proof structure, comprising: the main shaft rotor is sleeved on a bearing at one end of the main shaft rotor, a bearing pressing plate is positioned on one side of the bearing, the bearing pressing plate is pressed on a dustproof cover of the main shaft rotor, and the dustproof cover is fixed on a dustproof cover on the main shaft rotor; the bearing pressing plate and the dust cover are provided with vent holes communicated with each other, the air outlet of each vent hole is located in a gap at the joint of the dust cover and the spindle rotor, the outer wall of the spindle rotor located in the gap is provided with a plurality of airflow guide grooves, and when the electric spindle works, introduced sealing gas forms backflow in the airflow guide grooves to be pressurized to the outside so as to enhance the sealing effect.
One side of the airflow guide groove, which is close to the inner part of the spindle rotor, is a right-angle side, and one side of the airflow guide groove, which is close to the outer end part of the spindle rotor, is an oblique-angle side.
The airflow guide grooves are distributed on the outer wall of the spindle rotor in parallel.
And the bearing is also provided with another bearing close to the inner side of the main shaft rotor.
The bearing pressing plate is provided with a first vent hole, the dust cover is provided with a second vent hole, the first vent hole is communicated with the second vent hole, and the air outlet of the second vent hole is positioned above the airflow guide groove.
Compared with the prior art, the utility model discloses an electricity main shaft with sealed dustproof construction sets up a plurality of air current guide slots through the outer wall at the main shaft rotor, forms the backward flow in the air current guide slot to the sealed air current that gets into to be pressurized, thereby solve when sealed air current is unstable, the problem that airtight ability descends.
The foregoing is a summary of the present invention, and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments, which is provided for the purpose of illustration and understanding of the present invention.
Drawings
Fig. 1 is a cross-sectional view of an electric spindle with a sealing and dust-proof structure according to the present invention.
Fig. 2 is a schematic structural diagram of a rotor portion of the spindle of the electric spindle with a sealing and dustproof structure according to the present invention.
Fig. 3 is an enlarged structural view of a portion a of the projection 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and the following detailed description.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
Referring to fig. 1 to 3, the present embodiment provides an electric spindle with a sealing and dust-proof structure, which includes: the device comprises a main shaft rotor 1, a bearing 5 sleeved at one end of the main shaft rotor 1, a bearing pressing plate 4 positioned on one side of the bearing 5, a dustproof cover 3 which presses the bearing pressing plate 4 on the main shaft rotor 1, and a dustproof cover 2 which fixes the dustproof cover 3 on the main shaft rotor 1; the bearing pressing plate 4 and the dust cover 2 are provided with vent holes communicated with each other, the vent holes are used for introducing gas from the outside to hermetically seal the interior of the electric spindle, the gas outlet of each vent hole is located in a gap at the joint of the dust cover 2 and the spindle rotor 1, a plurality of airflow guide grooves 11 are formed in the outer wall of the spindle rotor 1 located in the gap, and when the electric spindle works, the introduced sealing gas forms backflow in the airflow guide grooves 11 to be pressurized to the outside so as to enhance the sealing effect.
Referring to fig. 3 again, one side of the airflow guiding slot 11 close to the inside of the spindle rotor 1 is a right-angled edge 111, and one side close to the outside end of the spindle rotor 1 is an oblique-angled edge 112.
The airflow guide grooves 11 are distributed on the outer wall of the spindle rotor 1 in parallel.
In the present embodiment, another bearing 6 is further provided on the inside of the bearing 5 close to the spindle rotor.
Referring to fig. 1 again, the bearing pressing plate 4 is provided with a first vent hole 41, the dust cover 2 is provided with a second vent hole 21, the first vent hole 41 is communicated with the second vent hole 21, and an air outlet of the second vent hole 21 is located above the airflow guide slot 11.
Compared with the prior art, according to the electric spindle with the sealing dustproof structure, the air flow guide grooves are formed in the outer wall of the spindle rotor, the entering sealing air flow forms backflow in the air flow guide grooves, so that the sealing air flow is pressurized, and the problem that the air sealing capacity is reduced when the sealing air flow is unstable is solved.
The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.
Claims (5)
1. An electric spindle with a sealed dustproof structure is characterized by comprising: the main shaft rotor is sleeved on a bearing at one end of the main shaft rotor, a bearing pressing plate is positioned on one side of the bearing, the bearing pressing plate is pressed on a dustproof cover of the main shaft rotor, and the dustproof cover is fixed on a dustproof cover on the main shaft rotor; the bearing pressing plate and the dust cover are provided with vent holes communicated with each other, the air outlet of each vent hole is located in a gap at the joint of the dust cover and the spindle rotor, the outer wall of the spindle rotor located in the gap is provided with a plurality of airflow guide grooves, and when the electric spindle works, introduced sealing gas forms backflow in the airflow guide grooves to be pressurized to the outside so as to enhance the sealing effect.
2. The electric spindle with the sealing dustproof structure as claimed in claim 1, wherein one side of the air flow guide groove close to the inside of the spindle rotor is a right-angled side, and one side of the air flow guide groove close to the outside end of the spindle rotor is an oblique-angled side.
3. The electric spindle with the sealing and dust-proof structure as claimed in claim 1, wherein the air flow guide grooves are distributed in parallel with each other on the outer wall of the spindle rotor.
4. The electric spindle with the sealing and dust-proof structure as claimed in claim 1, wherein another bearing is further provided on the bearing near the inner side of the spindle rotor.
5. The electric spindle with the sealing and dust-proof structure as claimed in claim 1, wherein a first vent hole is provided on the bearing pressure plate, a second vent hole is provided on the dust cover, the first vent hole is communicated with the second vent hole, and an air outlet of the second vent hole is located above the air flow guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921515510.7U CN210225155U (en) | 2019-09-11 | 2019-09-11 | Electric spindle with sealed dustproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921515510.7U CN210225155U (en) | 2019-09-11 | 2019-09-11 | Electric spindle with sealed dustproof construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210225155U true CN210225155U (en) | 2020-03-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921515510.7U Active CN210225155U (en) | 2019-09-11 | 2019-09-11 | Electric spindle with sealed dustproof construction |
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| Country | Link |
|---|---|
| CN (1) | CN210225155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555539A (en) * | 2020-05-22 | 2020-08-18 | 深圳市速锋科技股份有限公司 | Dynamic balance rotor structure |
-
2019
- 2019-09-11 CN CN201921515510.7U patent/CN210225155U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555539A (en) * | 2020-05-22 | 2020-08-18 | 深圳市速锋科技股份有限公司 | Dynamic balance rotor structure |
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