CN203477071U - Static-pressure oil cushion - Google Patents
Static-pressure oil cushion Download PDFInfo
- Publication number
- CN203477071U CN203477071U CN201320515472.1U CN201320515472U CN203477071U CN 203477071 U CN203477071 U CN 203477071U CN 201320515472 U CN201320515472 U CN 201320515472U CN 203477071 U CN203477071 U CN 203477071U
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- Prior art keywords
- static
- pressure oil
- pad
- oil
- damping
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Abstract
The utility model relates to the field of rotary worktables and particularly relates to a static-pressure oil cushion. The static-pressure oil cushion comprises a cushion body, wherein the cushion body comprises a static-pressure oil cavity and an oil sealing edge; the concave static-pressure oil cavity is formed in the middle of the cushion body; the static-pressure oil cavity is provided with a plurality of annular damping runners; the oil sealing edge on the outer side of the static-pressure oil cavity is provided with a plurality of annular damping grooves; the damping runners are located beside the oil sealing edge. With the adoption of the scheme, the bearing performance is improved, the pressure gain is realized, the friction of the oil sealing edge is reduced and the oil film rigidity of the static-pressure oil cushion is improved.
Description
Technical field
The utility model relates to rotary table field, refers in particular to a kind of static pressure oil pad.
Background technique
Revolving table is with rotating table top, in order to clamping workpiece, also realizes the machine tool accessory of revolution and calibration location, the large and medium-sized vertical lathe workbench of tradition adopts static pressure technology more, because it adopts pressure film as medium, there is high-mechanic stiffness characteristics, nothing wearing and tearing between friction pair, can overcome creeping phenomenon, turn round sensitive steadily, with and error homogenizing and damping, the shock-absorbing functions of carrying oil film make static pressure workbench there is high rotating accuracy and positioning precision.Also just because of above-mentioned outstanding advantages, it is widely applied in precision machine tool industry.
In recent years along with product is to maximization, heavy-duty, high speed and super precisionization development, the bearing capacity of worktable, quiet, dynamic performance have all been proposed to new requirement, especially in the appearance of large-scale vertical complex milling machine tool, traditional rotary table is because the reason of the aspects such as structure can not meet design requirement.
In order to improve load-carrying properties, realize Pressure gain, reduce sealing oil edge friction, improved the oil film rigidity of static pressure oil pad, the inventor makes further research this, develops a kind of static pressure oil pad, and this case produces thus.
Model utility content
To achieve these goals, the technical solution of the utility model is as follows:
A static pressure oil pad, comprises pad, and pad comprises static-pressure oil chamber and sealing oil edge, the middle part of pad is the static-pressure oil chamber of depression, described static-pressure oil chamber offers the damping flow channel of some annulars, offers the damping slot of some annulars on the sealing oil edge in static-pressure oil chamber outside, and damping flow channel is by oil sealing limit.
Further, in the middle of described static-pressure oil chamber, offer filler opening.
Further, described damping flow channel is twice.
Further, described damping slot is twice.
Further, the width of described damping flow channel is greater than damping slot.
Adopt after such scheme, the utility model compared with prior art, has the following advantages:
1, can make high-speed hydraulic oil in damping flow channel adjacent to each other and damping slot, produce turbulent flow, utilize Turbulence Flow characteristic, can increase liquid resistance, improve load-carrying properties, realize Pressure gain;
2, damping slot is set, can at damping slot place, produces local hydrostatic effects, reduce sealing oil edge friction, improved the oil film rigidity of static pressure oil pad.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model;
Fig. 2 is schematic diagram of the present utility model.
Label declaration
Pad 1, static-pressure oil chamber 2, filler opening 3, damping flow channel 4, sealing oil edge 5, damping slot 6.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As shown in the figure, a kind of static pressure oil pad that the utility model discloses, comprises pad 1, and pad 1 comprises static-pressure oil chamber 2 and sealing oil edge 5, and the static-pressure oil chamber 2 of depression, in pad 1 middle part, offers filler opening 3 in the middle of static-pressure oil chamber 2.
Sealing oil edge 5 is arranged on static-pressure oil chamber 2 around, in static-pressure oil chamber 2, offer the damping flow channel 4 of twice annular, on the sealing oil edge 5 in static-pressure oil chamber 2 outsides, offer the damping slot 6 of twice annular, damping slot 6 and damping flow channel 4 are adjacent to each other, and the width of damping flow channel 4 is greater than damping slot 6, can make like this high velocity liquid force feed in shallow oil pocket and oil clearance at damping flow channel 4 and the interior generation turbulent flow of damping slot 6, utilize Turbulence Flow characteristic, can increase liquid resistance, improve load-carrying properties, realize Pressure gain.Sealing oil edge 5 at static pressure oil pad arranges damping slot 6, can produce local hydrostatic effects at damping slot 6 places, reduces sealing oil edge 5 frictions, has improved the oil film rigidity of static pressure oil pad.
The Novel static pressure oil pad structure of many ring runners oil pocket and damping sealing oil edge 5 structures, by actual use, shows that its bearing capacity and oil film rigidity are better than the static pressure oil pad of conventional construction.
Above are only specific embodiment of the utility model, but design concept of the present utility model is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the utility model, all should belong to the behavior of invading the utility model protection domain.
Claims (5)
1. a static pressure oil pad, it is characterized in that: comprise pad, pad comprises static-pressure oil chamber and sealing oil edge, the middle part of pad is the static-pressure oil chamber of depression, described static-pressure oil chamber offers the damping flow channel of some annulars, the damping slot that offers some annulars on the sealing oil edge in static-pressure oil chamber outside, damping flow channel is by oil sealing limit.
2. a kind of static pressure oil pad according to claim 1, is characterized in that: in the middle of described static-pressure oil chamber, offer filler opening.
3. a kind of static pressure oil pad according to claim 1, is characterized in that: described damping flow channel is twice.
4. a kind of static pressure oil pad according to claim 1, is characterized in that: described damping slot is twice.
5. a kind of static pressure oil pad according to claim 1, is characterized in that: the width of described damping flow channel is greater than damping slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515472.1U CN203477071U (en) | 2013-08-22 | 2013-08-22 | Static-pressure oil cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515472.1U CN203477071U (en) | 2013-08-22 | 2013-08-22 | Static-pressure oil cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477071U true CN203477071U (en) | 2014-03-12 |
Family
ID=50225405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320515472.1U Expired - Fee Related CN203477071U (en) | 2013-08-22 | 2013-08-22 | Static-pressure oil cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477071U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439005A (en) * | 2016-12-07 | 2017-02-22 | 北京工业大学 | Circular hydrostatic turntable oil pad with oil sealing edge with circular arc grooves |
| CN106594075A (en) * | 2016-12-07 | 2017-04-26 | 北京工业大学 | Static-pressure circular oil pad with sine groove oil sealing edge |
| CN106594076A (en) * | 2016-12-07 | 2017-04-26 | 北京工业大学 | Dynamic and static pressure mixed fan-shaped oil pad |
| CN109333077A (en) * | 2018-10-10 | 2019-02-15 | 西安理工大学 | The opposed pressurization slot oil sealing surface formula fluid pressure revolving platform of dislocation type |
-
2013
- 2013-08-22 CN CN201320515472.1U patent/CN203477071U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439005A (en) * | 2016-12-07 | 2017-02-22 | 北京工业大学 | Circular hydrostatic turntable oil pad with oil sealing edge with circular arc grooves |
| CN106594075A (en) * | 2016-12-07 | 2017-04-26 | 北京工业大学 | Static-pressure circular oil pad with sine groove oil sealing edge |
| CN106594076A (en) * | 2016-12-07 | 2017-04-26 | 北京工业大学 | Dynamic and static pressure mixed fan-shaped oil pad |
| CN106439005B (en) * | 2016-12-07 | 2018-07-31 | 北京工业大学 | A kind of band arc groove sealing oil edge static pressure turntable circle lubricating pad |
| CN109333077A (en) * | 2018-10-10 | 2019-02-15 | 西安理工大学 | The opposed pressurization slot oil sealing surface formula fluid pressure revolving platform of dislocation type |
| CN109333077B (en) * | 2018-10-10 | 2021-01-15 | 西安理工大学 | Dislocation type opposite pressurizing groove oil seal surface type liquid static pressure rotary table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20210822 |