CN205136387U - Ball bearing frame labyrinth seal structure - Google Patents
Ball bearing frame labyrinth seal structure Download PDFInfo
- Publication number
- CN205136387U CN205136387U CN201520778442.9U CN201520778442U CN205136387U CN 205136387 U CN205136387 U CN 205136387U CN 201520778442 U CN201520778442 U CN 201520778442U CN 205136387 U CN205136387 U CN 205136387U
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- CN
- China
- Prior art keywords
- bearing support
- bearing frame
- ball screw
- ball
- labyrinth ring
- 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.)
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- Transmission Devices (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model provides a simple structure is practical, sparingly cost, reduction trouble efficiency just are applicable to high -speed rotatory ball bearing frame labyrinth seal structure, it includes ball, install bearing frame on this ball, install bearing in this bearing frame, a pair of set up in the inboard labyrinth ring in these bearing frame both ends respectively and be located this ball end be used for locking the lock nut on the bearing frame with labyrinth ring, one of them is right labyrinth ring separately and have certain clearance between the bearing frame realizes that contactless is sealed, ball was in high -speed rotatory state during this kind of structural style's structure can be guaranteed to this scheme, also can effectually prevent that external cutting fluid and the lubricating oil on the roller lead screw can be inside ball enter into the bearing frame simultaneously.
Description
Technical field
The utility model relates to numerical control machine tool technique field, refers more particularly to a kind of ball screw bearing support labyrinth seal structure.
Background technique
Traditional ball screw bearing support generally adopts oil seal or does not add sealing, oil sealing sealing is contact seal, wearing and tearing are had during rotation, be not suitable for High Rotation Speed, need to change oil sealing after oil sealing wearing and tearing, rate of fault is high, if do not add sealing, the extraneous impurity such as dust, steam can enter bearing, and the lubricant grease of bearing support inside also can flow out, and then can accelerate the wearing and tearing of bearing; In view of this, for how searching out that a kind of structure is simple, with low cost, reliable operation and the ball screw sealing configuration being applicable to High Rotation Speed just seems particularly important.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple and practical, save cost, reduce fault efficiency and be applicable to the ball screw bearing support labyrinth seal structure of High Rotation Speed.
For achieving the above object, technological scheme provided by the utility model is: a kind of ball screw bearing support labyrinth seal structure, comprise ball screw, it is characterized in that: also comprising the bearing support be installed on this ball screw, the bearing be installed in this bearing support, being arranged at the labyrinth ring inside these bearing support two ends for a pair respectively and being positioned at this ball screw end for labyrinth ring being lock onto the locking nut on bearing support, wherein labyrinth ring described in a pair separately and have certain gap between bearing support, realizes non-contact type sealing.
Preferably, described labyrinth ring outer end arranged outside has outward-dipping circular groove.
Preferably, the annular groove matched with annular groove on bearing support is also provided with inside described labyrinth ring.
This programme comprises by adopting the bearing support be installed on this ball screw, be installed on the bearing in this bearing support, be arranged at the labyrinth ring inside these bearing support two ends for a pair respectively and be positioned at this ball screw end for labyrinth ring being lock onto the locking nut on bearing support, wherein a pair labyrinth ring separately and have certain gap between bearing support, realize the structural type of non-contact type sealing, can ensure that in the structure of this kind of structural type, ball screw is in High Rotation Speed state, also can effectively prevent the lubricant oil on extraneous cutting fluid and ball screw from can enter into bearing support inside along ball screw simultaneously.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present utility model.
Fig. 2 is the A place partial enlargement structural representation in Fig. 1.
Fig. 3 is the labyrinth ring cross-sectional view in the utility model.
In figure: 1-ball screw, 2-locking nut, 3-labyrinth ring, 301-circular groove, 302-annular groove, 4-bearing support, 5-bearing gland, 6-bearing.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail:
Shown in accompanying drawing 1 to 3, a kind of ball screw bearing support labyrinth seal structure described in the present embodiment, it comprises ball screw 1, the bearing support 4 be installed on this ball screw 1, the bearing 6 be installed in this bearing support 4, be arranged at the labyrinth ring 3 inside these bearing support 4 two ends for a pair respectively and be positioned at this ball screw 1 end for labyrinth ring 3 being lock onto locking nut 2 on bearing support 4 and bearing gland 5, wherein a pair above-mentioned labyrinth ring 3 has certain gap separately and between bearing support 4, realizes non-contact type sealing.
In order to play dust-proof effect further, the above-mentioned labyrinth ring 3 outer end arranged outside in this programme has outward-dipping circular groove 301.During work, the foreign material entered in the circular groove 301 of above-mentioned labyrinth ring 3 outside outwards can throw away under the influence of centrifugal force, thus play dustproof effect.
In addition simultaneously in order to prevent the grease of bearing support 4 inside from flowing out bearing support 4, the annular groove 302 matched with annular groove on bearing support 4 inside the above-mentioned labyrinth ring 3 in this programme, is also provided with.
The examples of implementation of the above are only the preferred embodiment of the utility model, not limit practical range of the present utility model with this, therefore the change that all shapes according to the utility model, principle are done, all should be encompassed in protection domain of the present utility model.
Claims (3)
1. a ball screw bearing support labyrinth seal structure, comprise ball screw (1), it is characterized in that: also comprise the bearing support (4) be installed on this ball screw (1), be installed on the bearing (6) in this bearing support (4), be arranged at the labyrinth ring (3) inside this bearing support (4) two ends for a pair respectively and be positioned at this ball screw (1) end for labyrinth ring (3) being lock onto the locking nut (2) on bearing support (4), wherein labyrinth ring described in a pair (3) has certain gap separately and between bearing support (4), realize non-contact type sealing.
2. a kind of ball screw bearing support labyrinth seal structure according to claim 1, is characterized in that: described labyrinth ring (3) outer end arranged outside has outward-dipping circular groove (301).
3. a kind of ball screw bearing support labyrinth seal structure according to claim 1 and 2, is characterized in that: described labyrinth ring (3) inner side is also provided with the annular groove (302) that annular protrusion upper with bearing support (4) matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520778442.9U CN205136387U (en) | 2015-10-09 | 2015-10-09 | Ball bearing frame labyrinth seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520778442.9U CN205136387U (en) | 2015-10-09 | 2015-10-09 | Ball bearing frame labyrinth seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136387U true CN205136387U (en) | 2016-04-06 |
Family
ID=55622185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520778442.9U Active CN205136387U (en) | 2015-10-09 | 2015-10-09 | Ball bearing frame labyrinth seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136387U (en) |
-
2015
- 2015-10-09 CN CN201520778442.9U patent/CN205136387U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |