CN210623570U - Multi-layer labyrinth groove type sealing structure of electric spindle - Google Patents
Multi-layer labyrinth groove type sealing structure of electric spindle Download PDFInfo
- Publication number
- CN210623570U CN210623570U CN201921483354.0U CN201921483354U CN210623570U CN 210623570 U CN210623570 U CN 210623570U CN 201921483354 U CN201921483354 U CN 201921483354U CN 210623570 U CN210623570 U CN 210623570U
- Authority
- CN
- China
- Prior art keywords
- gasket
- locking nut
- front inner
- gland
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model provides an electricity main shaft multilayer labyrinth slot type seal structure, includes the main shaft, characterized by: the outer surface of the end part of the spindle is sequentially sleeved with a front inner gasket, a front outer gasket and a sleeve from inside to outside, the joint of the front inner gasket and the front outer gasket is provided with a front inner gasket annular sealing convex tooth, and the joint of the front outer gasket and the front inner gasket is provided with a front outer gasket annular sealing groove. The utility model has the advantages that the front inner gasket annular sealing convex teeth are embedded in the front outer gasket annular sealing grooves to form a labyrinth sealing structure, thereby playing a dustproof role; the outer circle of the locking nut is provided with an external thread in the direction opposite to the rotating direction, airflow flowing to the outside is generated during rotation, and the airflow flows out from the U-shaped notch of the front gland and forms positive pressure with the outside, so that impurities cannot enter, and a dustproof effect is achieved; the electric spindle is suitable for working conditions of containing a large amount of dust, water mist, cutting fluid, cutting impurities and the like, and has the characteristics of good dustproof performance, long service life of the bearing and good stability.
Description
Technical Field
The utility model relates to the technical field of machining, specifically be an electricity main shaft multilayer labyrinth slot type seal structure.
Background
The electric spindle is also called as a motor built-in spindle and is directly driven by an internal motor without needing an external servo motor to work like the traditional mechanical spindle. The electric spindle has a compact structure, so that high rotation speed, high precision and high running stability can be realized.
The electric spindle is often used under working conditions of containing a large amount of dust, water mist, cutting fluid, cutting impurities and the like, so that the dust, the water mist, the cutting fluid, the cutting impurities and the like easily enter the spindle to damage a bearing, and the service life of the electric spindle is seriously influenced.
Disclosure of Invention
The utility model aims to overcome the defects, thereby providing a multi-layer labyrinth groove type sealing structure of the electric spindle, wherein the annular sealing convex teeth of the front inner gasket are embedded in the annular sealing groove of the front outer gasket to form a labyrinth sealing structure, thereby playing a role of dust prevention; the outer circle of the locking nut is provided with an external thread in the direction opposite to the rotating direction, airflow flowing to the outside is generated during rotation, and the airflow flows out from the U-shaped notch of the front gland and forms positive pressure with the outside, so that impurities cannot enter, and a dustproof effect is achieved; the front gland sealing convex tooth is embedded in the upper groove of the locking nut to form a labyrinth sealing structure, so that the dustproof effect is achieved; the front inner baffle sealing convex teeth are embedded in the lower grooves of the locking nuts to form a labyrinth sealing structure, so that the dustproof effect is achieved; the electric spindle is suitable for working conditions of containing a large amount of dust, water mist, cutting fluid, cutting impurities and the like, and has the characteristics of good dustproof performance, long service life of the bearing and good stability.
The technical scheme of the utility model is that: the utility model provides an electricity main shaft multilayer labyrinth slot type seal structure, includes the main shaft, characterized by: the outer surface of the end part of the main shaft is sleeved with a front inner gasket, a front outer gasket and a sleeve in sequence from inside to outside, the joint of the front inner gasket and the front outer gasket is provided with a front inner gasket annular sealing convex tooth, the joint of the front outer gasket and the front inner gasket is provided with a front outer gasket annular sealing groove, the front inner gasket annular sealing convex tooth is embedded in the front outer gasket annular sealing groove, the front inner gasket and the front outer gasket are equal in height to form a labyrinth sealing structure, the lower end surface of the front inner gasket is contacted with a front locking nut, the lower end surface of the front outer gasket is contacted with a front gland, the locking nut is in threaded connection with the main shaft, the outer circle of the locking nut is provided with an external thread opposite to the rotating direction, air flow flowing to the outside is generated during rotation, the upper part of the outer circle of the locking nut is provided with an upper groove of the locking nut, the lower part of the outer circle of the locking nut is, the sealing convex teeth of the front gland are embedded in the upper groove of the locking nut to form a labyrinth sealing structure, the front end of the front gland is provided with a U-shaped notch of the front gland, a front inner blocking piece is fixed on the front gland, the middle part of the front inner blocking piece is provided with a front inner blocking piece sealing convex tooth, the sealing convex teeth of the front inner blocking piece are embedded in the lower groove of the locking nut to form a labyrinth sealing structure, the bottommost part of the shaft end is a front blocking cover, the front blocking cover is fixed on the front gland, the locking nut and the front inner blocking piece are covered by the front blocking cover, and a semi-circular groove of the front blocking cover is arranged at the bottommost part.
The utility model has the advantages that: the utility model provides a multi-layer labyrinth groove type sealing structure of an electric spindle, which is characterized in that a front inner gasket annular sealing convex tooth is embedded in a front outer gasket annular sealing groove to form a labyrinth sealing structure and play a role of dust prevention; the outer circle of the locking nut is provided with an external thread in the direction opposite to the rotating direction, airflow flowing to the outside is generated during rotation, and the airflow flows out from the U-shaped notch of the front gland and forms positive pressure with the outside, so that impurities cannot enter, and a dustproof effect is achieved; the front gland sealing convex tooth is embedded in the upper groove of the locking nut to form a labyrinth sealing structure, so that the dustproof effect is achieved; the front inner baffle sealing convex teeth are embedded in the lower grooves of the locking nuts to form a labyrinth sealing structure, so that the dustproof effect is achieved; the electric spindle is suitable for working conditions of containing a large amount of dust, water mist, cutting fluid, cutting impurities and the like, and has the characteristics of good dustproof performance, long service life of the bearing and good stability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In FIG. 1, 1-front shield cover, 11-front shield cover semicircular groove, 2-lock nut, 21-lock nut upper groove, 22-lock nut lower groove, 3-front inner shield plate, 31-front inner shield plate sealing convex tooth, 4-front gland, 41-front gland sealing convex tooth, 42-front gland U-shaped notch, 5-front outer gasket, 51-front outer gasket annular sealing groove, 6-front inner gasket, 61-front inner gasket annular sealing convex tooth, 7-sleeve and 8-spindle.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the utility model relates to an electricity main shaft multilayer labyrinth slot type seal structure, including main shaft 8, characterized by: a front inner gasket 6, a front outer gasket 5 and a sleeve 7 are sleeved on the outer surface of the end part of a main shaft 8 from inside to outside in sequence, a front inner gasket annular sealing convex tooth 61 is arranged at the joint of the front inner gasket 6 and the front outer gasket 5, a front outer gasket annular sealing groove 51 is arranged at the joint of the front outer gasket 5 and the front inner gasket 6, the front inner gasket annular sealing convex tooth 61 is embedded in the front outer gasket annular sealing groove 51, the front inner gasket 6 and the front outer gasket 5 are equal in height to form a labyrinth sealing structure, the lower end surface of the front inner gasket 6 is contacted with a locking nut 2, the lower end surface of the front outer gasket 5 is contacted with a front gland 4, the locking nut 2 is in threaded connection with the main shaft 8, the outer circle of the locking nut 2 is provided with an external thread opposite to the rotating direction, air flow flowing to the outside is generated during rotation, the upper part of the outer circle of the locking nut 2 is provided with an upper groove 21, the front gland 4 is fixed on the sleeve 7, the upper part of the front gland 4 is provided with a front gland sealing convex tooth 41, the front gland sealing convex tooth 41 is embedded in an upper groove 21 of the locking nut to form a labyrinth sealing structure, the front end of the front gland 4 is provided with a front gland U-shaped notch 42, the front gland 4 is fixed with a front inner baffle plate 3, the middle part of the front inner baffle plate 3 is provided with a front inner baffle plate sealing convex tooth 31, the front inner baffle plate sealing convex tooth 31 is embedded in a lower groove 22 of the locking nut to form the labyrinth sealing structure, the lowermost part of the shaft end is a front baffle cover 1, the front baffle cover 1 is fixed on the front gland 4, the front baffle cover 1 covers the locking nut 2, the front inner baffle plate 3, and the lowermost part of the front baffle cover 1 is provided with a front baffle cover semicircular groove.
The utility model discloses a theory of operation does:
the outer surface of the end part of the main shaft 1 is sequentially sleeved with a front inner gasket 6, a front outer gasket 5 and a sleeve 7 from inside to outside, a front inner gasket annular sealing convex tooth 61 is arranged at the joint of the front inner gasket 6 and the front outer gasket 5, a front outer gasket annular sealing groove 51 is arranged at the joint of the front outer gasket 5 and the front inner gasket 6, the front inner gasket annular sealing convex tooth 61 is embedded in the front outer gasket annular sealing groove 51, the front inner gasket 6 and the front outer gasket 5 are equal in height, a labyrinth sealing structure is formed, and a dustproof effect is achieved.
Preceding interior gasket 6 lower terminal surface and preceding lock nut 2 contact, preceding outer gasket 5 lower terminal surface and preceding gland 4 contact, lock nut 2 and 8 threaded connection of main shaft, 2 excircles of lock nut are equipped with the external screw thread opposite with direction of rotation, produce the air current that flows to the outside when rotatory, and the air current flows from preceding gland U type breach 42, forms the malleation with the outside, guarantees that impurity can not get into, plays dustproof effect.
The upper part of the excircle of the locking nut 2 is provided with an upper locking nut groove 21, the lower part of the excircle of the locking nut 2 is provided with a lower locking nut groove 22, the front gland 4 is fixed on the sleeve 7, the upper part of the front gland 4 is provided with a front gland sealing convex tooth 41, and the front gland sealing convex tooth 41 is embedded in the upper locking nut groove 21 to form a labyrinth sealing structure and play a role in dust prevention.
The front gland 4 is fixed with the front inner baffle 3, the middle part of the front inner baffle 3 is provided with a front inner baffle sealing convex tooth 31, and the front inner baffle sealing convex tooth 31 is embedded in the lower groove 22 of the locking nut to form a labyrinth sealing structure, thereby playing a dustproof role.
The shaft end below is preceding fender lid 1, and preceding fender lid 1 is fixed in the front on gland 4, and preceding fender lid 1 covers preceding lock nut 2, preceding interior fender piece 3, and preceding fender lid 1 below is equipped with preceding fender lid half slot 11, and the impurity of sputter at the surface can flow away in the past fender lid half slot 11, can not get into inside.
Therefore, the front inner gasket annular sealing convex tooth 61 is embedded in the front outer gasket annular sealing groove 51 to form a labyrinth sealing structure, so that the dustproof effect is achieved; the outer circle of the locking nut 2 is provided with an external thread opposite to the rotating direction, airflow flowing to the outside is generated during rotation, and the airflow flows out from the U-shaped notch 42 of the front gland and forms positive pressure with the outside, so that impurities cannot enter, and a dustproof effect is achieved; the front gland sealing convex tooth 41 is embedded in the upper groove 21 of the locking nut to form a labyrinth sealing structure, thereby playing a dustproof role; the front inner baffle sealing convex tooth 31 is embedded in the lower groove 22 of the locking nut to form a labyrinth sealing structure, thereby playing a role of dust prevention; the electric spindle is suitable for working conditions of containing a large amount of dust, water mist, cutting fluid, cutting impurities and the like, and has the characteristics of good dustproof performance, long service life of the bearing and good stability.
Claims (1)
1. The utility model provides an electricity main shaft multilayer labyrinth slot type seal structure, includes main shaft (8), characterized by: the outer surface of the end part of a main shaft (8) is sleeved with a front inner gasket (6), a front outer gasket (5) and a sleeve (7) from inside to outside in sequence, the joint of the front inner gasket (6) and the front outer gasket (5) is provided with a front inner gasket annular sealing convex tooth (61), the joint of the front outer gasket (5) and the front inner gasket (6) is provided with a front outer gasket annular sealing groove (51), the front inner gasket annular sealing convex tooth (61) is embedded in the front outer gasket annular sealing groove (51), the front inner gasket (6) and the front outer gasket (5) are equal in height to form a labyrinth sealing structure, the lower end surface of the front inner gasket (6) is contacted with a locking nut (2), the lower end surface of the front outer gasket (5) is contacted with a front gland (4), the locking nut (2) is in threaded connection with the main shaft (8), the outer circle of the locking nut (2) is provided with external threads opposite to the rotating direction, and generates airflow flowing to the outside during, a locking nut upper groove (21) is arranged on the upper portion of the outer circle of the locking nut (2), a locking nut lower groove (22) is arranged on the lower portion of the outer circle of the locking nut (2), a front gland (4) is fixed on the sleeve (7), a front gland sealing convex tooth (41) is arranged on the upper portion of the front gland (4), the front gland sealing convex tooth (41) is embedded in the locking nut upper groove (21) to form a labyrinth sealing structure, a front gland U-shaped notch (42) is arranged at the front end of the front gland (4), a front inner blocking piece (3) is fixed on the front gland (4), a front inner blocking piece sealing convex tooth (31) is arranged in the middle portion of the front inner blocking piece (3), the front inner blocking piece sealing convex tooth (31) is embedded in the locking nut lower groove (22) to form the labyrinth sealing structure, a front blocking cover (1) is arranged at the bottom of the shaft end, the front blocking cover (1) is fixed on the front gland (4), and the locking nut (2), A front inner baffle plate (3) and a front baffle cover semicircular groove (11) are arranged at the lowest part of the front baffle cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921483354.0U CN210623570U (en) | 2019-09-07 | 2019-09-07 | Multi-layer labyrinth groove type sealing structure of electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921483354.0U CN210623570U (en) | 2019-09-07 | 2019-09-07 | Multi-layer labyrinth groove type sealing structure of electric spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210623570U true CN210623570U (en) | 2020-05-26 |
Family
ID=70759115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921483354.0U Active CN210623570U (en) | 2019-09-07 | 2019-09-07 | Multi-layer labyrinth groove type sealing structure of electric spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210623570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022226979A1 (en) * | 2021-04-30 | 2022-11-03 | Abb Schweiz Ag | Sealing assembly and robot |
-
2019
- 2019-09-07 CN CN201921483354.0U patent/CN210623570U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022226979A1 (en) * | 2021-04-30 | 2022-11-03 | Abb Schweiz Ag | Sealing assembly and robot |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210623570U (en) | Multi-layer labyrinth groove type sealing structure of electric spindle | |
| CN209196129U (en) | A kind of electro spindle double-layer labyrinth slot type sealing structure | |
| CN202263941U (en) | Gear slicing device cutter main axle | |
| CN108711997A (en) | Multi-function motor bearing seal structure | |
| CN206498276U (en) | A kind of New-type electric machine bearing locking sealing device | |
| CN204647324U (en) | A kind of guide flowing type labyrinth gland | |
| CN213298812U (en) | Multilayer end face contact type protection structure of high-speed cutting spindle box | |
| CN112139986B (en) | High leakproofness electricity main shaft | |
| CN210380473U (en) | Motor for glass mechanical equipment | |
| CN216657565U (en) | Double-end grinding electric spindle | |
| CN205371626U (en) | Two subdivision formula sealing device | |
| CN108972023B (en) | Workpiece clamping shaft liquid cooling rare earth permanent magnet torque motor direct-drive turntable | |
| CN210623571U (en) | Shaft end sealing structure for steel pipe inner hole opening photoelectric main shaft | |
| CN201330852Y (en) | Oil mist sealing structure of electric main shaft | |
| CN106958660B (en) | A kind of grease lubrication electro spindle | |
| CN202103514U (en) | External rotor motor capable of raising protection level | |
| CN213561090U (en) | Multifunctional guide rod telescopic servo waterwheel spindle | |
| CN207939300U (en) | A kind of novel waterproof structure for motor | |
| CN209866933U (en) | Carbon powder collecting device for collecting ring chamber of hydraulic generator | |
| CN109707851B (en) | Contact type sealing device for high-speed bearing box of multi-wire sawing machine | |
| CN207848403U (en) | A kind of rotating seal | |
| CN215521960U (en) | Novel waterproof construction of main shaft | |
| CN208289003U (en) | The sealing structure and electro spindle of electro spindle | |
| CN204716978U (en) | A kind of spiral bearing seal structure | |
| CN216279391U (en) | Numerical control machining center main shaft front end labyrinth protective structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 214000 workshop, building B, No. 220, Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province Patentee after: Wuxi sunshine Precision Machinery Co.,Ltd. Address before: 214100 room 2, zone B, Qinglongshan Industrial Park, No. 128, Qinglongshan, Wuxi, Jiangsu Patentee before: WUXI SUNSHINE PRECISION MACHINERY CO.,LTD. |