CN205226373U - Anti - pump sending sealing device of lathe axle - Google Patents
Anti - pump sending sealing device of lathe axle Download PDFInfo
- Publication number
- CN205226373U CN205226373U CN201521130699.XU CN201521130699U CN205226373U CN 205226373 U CN205226373 U CN 205226373U CN 201521130699 U CN201521130699 U CN 201521130699U CN 205226373 U CN205226373 U CN 205226373U
- Authority
- CN
- China
- Prior art keywords
- water conservancy
- conservancy diversion
- lip
- pumping
- main shaft
- 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.)
- Expired - Fee Related
Links
Landscapes
- Sealing Of Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses an anti - pump sending sealing device of lathe axle, seal including main shaft, water conservancy diversion apron, anti - pump sending ring, middle water conservancy diversion lip closing cap and lip, in the middle of the anti - pump sending ring sum water conservancy diversion lip closing cap from outer to interior suit in proper order on the main shaft, the lip seals and sets up between middle water conservancy diversion lip closing cap and anti - pump sending ring, water conservancy diversion apron suit is in the outside of main shaft, the middle water conservancy diversion lip closing cap of anti - pump sending ring sum. The utility model discloses a set up four kinds of sealing device, avoid stopping and the in -process that changes speed opening at the main shaft, because of the change of the inside vacuum state of labyrinth seals causes environment chinese railway ash and coolant liquid entering bearing portion, damage the bearing and reduce equipment accuracy, avoid the in -process at main shaft low -speed operation, because of the labyrinth seals performance degradation leads to environment chinese railway ash and coolant liquid entering bearing portion, damage the bearing and reduce equipment accuracy, avoid under the main shaft block state, leaded to environment chinese railway ash and coolant liquid entering bearing portion because of labyrinth seals becomes invalid, damage the bearing and reduce equipment accuracy.
Description
Technical field
The utility model relates to a kind of seal arrangement, particularly relates to the anti-pumping seal arrangement of a kind of machine spindle.
Background technique
In existing highi degree of accuracy process equipment (machining center, numerical control milling machine, numerical control milling machine etc.), bearing many employings labyrinth seal mode, isolates materials such as the cooling water produced in course of working, cast iron ashes.Just because of the reason that this single structure of labyrinth seal is new-type, the major defect existed is caused to have:
1) when the motion state that all can change labyrinth internal gas in equipment start-stop and high speed low speed handoff procedure, part cast iron dust may be caused to enter bearing, cause bearing accuracy to reduce, affect process equipment precision.
2) when equipment low cruise, the sealability of sealing sealing is not good, and the dust in environment and cooling liquid easily enter bearing, cause bearing rust or wearing and tearing, cause bearing accuracy to reduce, and affect process equipment precision.
3) after equipment stops, the basic total failure of sealing sealing, the dust in environment and cooling liquid all can enter bearing, cause bearing rust or wearing and tearing, cause bearing accuracy to reduce, and affect process equipment precision.
Model utility content
The purpose of this utility model is just to provide a kind of machine spindle anti-pumping seal arrangement to solve the problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The anti-pumping seal arrangement of a kind of machine spindle, comprise main shaft, water conservancy diversion cover plate, anti-pumping ring, the capping of middle water conservancy diversion lip and lip envelope, described anti-pumping ring and the capping of described middle water conservancy diversion lip are sleeved on described main shaft from outside to inside successively, described lip envelope is arranged between the capping of described middle water conservancy diversion lip and described anti-pumping ring, described fairing cap sleeve-board is contained in the outside of described main shaft, described anti-pumping ring and the capping of described middle water conservancy diversion lip, and is fixedly connected with described lathe by attachment screw.
Particularly, the annulus of described anti-pumping ring to be cross section be L-type, labyrinth ring is provided with along on the cross section in the direction, medial axis of described anti-pumping ring, outer end along the cross section of the radial direction of described anti-pumping ring is provided with dynamic pressure groove, and the distance between the inner end face of described dynamic pressure groove and the medial axis of described anti-pumping ring is period profile.
Preferably, the external diameter of described labyrinth ring is less than the external diameter of described anti-pumping ring.
Particularly, the outer side of the interior edge face of described middle water conservancy diversion lip capping is provided with the maze trough corresponding with described labyrinth ring, and the interior side of the interior edge face of described middle water conservancy diversion lip capping arranges the lip sealing groove being used for sealing with the described lip of installation.
Further, described water conservancy diversion cover plate is provided with pod apertures.
The beneficial effects of the utility model are:
The anti-pumping seal arrangement of the utility model machine spindle is by arranging four kinds of seal arrangements, avoid at main shaft in start and stop and speed-change process, cause because of the change of labyrinth seal inner vacuum state iron ash and cooling liquid in environment to enter bearing portion, damage bearing and reduce equipment precision; Avoid in main shaft low operation process, cause because labyrinth seal performance reduces iron ash and cooling liquid in environment to enter bearing portion, damage bearing and reduce equipment precision; Avoid under main shaft halted state, cause because labyrinth seal was lost efficacy iron ash and cooling liquid in environment to enter bearing portion, damage bearing and reduce equipment precision.
Accompanying drawing explanation
Fig. 1 is the sectional view of the anti-pumping seal arrangement of machine spindle described in the utility model;
Fig. 2 is the structural representation of anti-pumping ring described in the utility model;
Fig. 3 is the K-K sectional view of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As Fig. 1, shown in Fig. 2 and Fig. 3, the anti-pumping seal arrangement of a kind of machine spindle of the utility model, comprise main shaft 1, water conservancy diversion cover plate 2, anti-pumping ring 3, middle water conservancy diversion lip capping 5 and lip envelope 6, described anti-pumping ring 3 and described middle water conservancy diversion lip capping 5 are sleeved on described main shaft 1 from outside to inside successively, described lip envelope 6 is arranged between described middle water conservancy diversion lip capping 5 and described anti-pumping ring 3, described water conservancy diversion cover plate 2 is sleeved on described main shaft 1, the outside of described anti-pumping ring 3 and described middle water conservancy diversion lip capping 5, and be fixedly connected with described lathe by attachment screw, described anti-pumping ring 3 for cross section be the annulus of L-type, labyrinth ring 41 is provided with along on the cross section in the direction, medial axis of described anti-pumping ring 3, outer end along the cross section of the radial direction of described anti-pumping ring 3 is provided with dynamic pressure groove 42, distance between the inner end face of described dynamic pressure groove 42 and the medial axis of described anti-pumping ring 3 is period profile, the external diameter of described labyrinth ring 41 is less than the external diameter of described anti-pumping ring 3, the outer side of the interior edge face of described middle water conservancy diversion lip capping 5 is provided with the maze trough corresponding with described labyrinth ring 41, the interior side of the interior edge face of described middle water conservancy diversion lip capping 5 arranges and is used for and installs the lip sealing groove that described lip seals 6, described water conservancy diversion cover plate 2 is provided with pod apertures.
The working principle of the utility model machine spindle anti-pumping seal arrangement is as follows:
The utility model have employed the principle of multiple seal combination and hydrodynamic technology,
Wherein in Fig. 1, I place mainly relies on main shaft 1 to run and produces centrifugal force, and blocking-up cooling liquid and iron ash enter, and the iron ash and the cooling liquid that enter this region are spilt by the pod apertures of water conservancy diversion cover plate 2 lower end;
In Fig. 1, II place then have employed Fluid Sealing dynamic pressure technology, is proved by specific calculation and test, draws the dynamic pressure groove 42 of given shape and the degree of depth in Fig. 2, carries out anti-pumping when equipment runs to inside, makes inner formation vacuum area;
In Fig. 1, III place is labyrinth seal, and this region is vacuum state or gas medium state of equilibrium, forms isolated area;
In Fig. 1, IV place is lip envelope 6, when main shaft 1 is in halted state, can realize the positive confinement to bearing.
Sealability is more reliable and more stable, and tube apparatus is not in high speed, low speed, speed change or halted state and can realizes effective isolation that is grey to environment medium cast iron and cooling liquid.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion made according to the technical solution of the utility model, all falls within protection domain of the present utility model.
Claims (5)
1. the anti-pumping seal arrangement of machine spindle, comprise main shaft, it is characterized in that: also comprise water conservancy diversion cover plate, anti-pumping ring, the capping of middle water conservancy diversion lip and lip envelope, described anti-pumping ring and the capping of described middle water conservancy diversion lip are sleeved on described main shaft from outside to inside successively, described lip envelope is arranged between the capping of described middle water conservancy diversion lip and described anti-pumping ring, described fairing cap sleeve-board is contained in the outside of described main shaft, described anti-pumping ring and the capping of described middle water conservancy diversion lip, and is fixedly connected with described lathe by attachment screw.
2. the anti-pumping seal arrangement of machine spindle according to claim 1, it is characterized in that: the annulus of described anti-pumping ring to be cross section be L-type, labyrinth ring is provided with along on the cross section in the direction, medial axis of described anti-pumping ring, outer end along the cross section of the radial direction of described anti-pumping ring is provided with dynamic pressure groove, and the distance between the inner end face of described dynamic pressure groove and the medial axis of described anti-pumping ring is period profile.
3. the anti-pumping seal arrangement of machine spindle according to claim 2, is characterized in that: the external diameter of described labyrinth ring is less than the external diameter of described anti-pumping ring.
4. the anti-pumping seal arrangement of machine spindle according to claim 2, it is characterized in that: the outer side of the interior edge face of described middle water conservancy diversion lip capping is provided with the maze trough corresponding with described labyrinth ring, the interior side of the interior edge face of described middle water conservancy diversion lip capping arranges the lip sealing groove being used for sealing with the described lip of installation.
5. the anti-pumping seal arrangement of machine spindle according to claim 1, is characterized in that: described water conservancy diversion cover plate is provided with pod apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521130699.XU CN205226373U (en) | 2015-12-30 | 2015-12-30 | Anti - pump sending sealing device of lathe axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521130699.XU CN205226373U (en) | 2015-12-30 | 2015-12-30 | Anti - pump sending sealing device of lathe axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205226373U true CN205226373U (en) | 2016-05-11 |
Family
ID=55901440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521130699.XU Expired - Fee Related CN205226373U (en) | 2015-12-30 | 2015-12-30 | Anti - pump sending sealing device of lathe axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205226373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911633A (en) * | 2020-07-03 | 2020-11-10 | 江苏海洋大学 | Novel self-balancing type active leakage-inhibiting labyrinth sealing device |
-
2015
- 2015-12-30 CN CN201521130699.XU patent/CN205226373U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911633A (en) * | 2020-07-03 | 2020-11-10 | 江苏海洋大学 | Novel self-balancing type active leakage-inhibiting labyrinth sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20181230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |