CN205895917U - Static pressure bearing - Google Patents
Static pressure bearing Download PDFInfo
- Publication number
- CN205895917U CN205895917U CN201620694091.8U CN201620694091U CN205895917U CN 205895917 U CN205895917 U CN 205895917U CN 201620694091 U CN201620694091 U CN 201620694091U CN 205895917 U CN205895917 U CN 205895917U
- Authority
- CN
- China
- Prior art keywords
- oil
- subassembly
- bearing
- oil pocket
- auxiliary
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
- F16C32/0633—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being retained in a gap
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
- F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
- F16C32/0651—Details of the bearing area per se
- F16C32/0655—Details of the bearing area per se of supply openings
Abstract
The utility model discloses a static pressure bearing, it includes the casing and passes through the pivot of journal bearing normal running fit in the casing, is equipped with footstep bearing in the casing, its characterized in that: the footstep bearing shaft shoulder that the includes the countershaft first subassembly and the second subassembly of applying axial balance power, be equipped with the work oil groove on first subassembly and the second subassembly respectively, each oil groove of working forms main oil pocket with each self -corresponding axle shoulder end facial features cooperation, be equipped with work the separately oil feed branch road of oil groove fluid of supply on first subassembly and the second subassembly respectively, main oil pocket is linked together with an auxiliary oil cylinders chamber and the 2nd auxiliary oil cylinders chamber respectively, be equipped with the oil replenishing system who supplies with main oil pocket fluid when the pivot rotational speed risees to the critical value through an auxiliary oil cylinders chamber on first subassembly and the second subassembly respectively. The utility model provides a static pressure bearing, it can regard as axial bearing to use hydrostatic bearing to realize that precision height, small friction and axial are spacing effectual.
Description
Technical field
The utility model is related to the technical field of main shaft, particularly a kind of hydrostatic spindle.
Background technology
Hydrostatic spindle refers to, is to carry out sliding friction by fluid that is to say, that hydrostatic spindle between its rotating shaft and bearing
Bearing be hydrostatic bearing, and hydrostatic bearing is as one kind of sliding bearing, and its operation principle is by pressure by compression pump
Lubricant pumps in the minim gap between bearing and axle by force.Hydrostatic bearing of the prior art mostly is journal bearing, its
Application on cod is few.Its reason is, when hydrostatic bearing is for journal bearing, fluid is fitted with axis of rotation
In bearing inner surface and move in the circumferential direction, therefore good lubricant effect can be played, but when hydrostatic bearing is as axial axis
When holding use, it is also referred to as thrust bearing in industry, due to the centrifugal action of rotating shaft, positioned at the shaft shoulder and the thrust bearing of rotating shaft
Gap in lubricating oil constantly will be thrown away due to centrifugal action that is to say, that fluid fuel-displaced speed with
The rotating speed rotating shaft raises and persistently raises, when the oil-feed speed of the oil inlet end supplying oil pocket in hydrostatic bearing is less than fuel-displaced speed
When will lead to be formed in oil pocket negative pressure, the supporting role ultimately resulting in oil pocket was lost efficacy, between hydrostatic bearing and the shaft shoulder of rotating shaft
Directly firmly contact to damage.And hydrostatic bearing is in order that oil pocket has certain rigidity, the bore of its oil-in is necessarily far little
In the lifting surface area of oil pocket and the intermolecular forces of rotating shaft, only just enable good on the premise of small-bore oil-in
Oil pocket rigidity, and the larger oil-feed speed of this exactly thrust bearing contradicts.This namely why static pressure axle in industry
The reason hold great majority for journal bearing, and cannot be promoted on thrust bearing.And existing thrust bearing, such as thrust
Ball bearing and thrust roller bearing, all there is the precision of roller and shaft shoulder linear contact lay and Rigidity in it.
Content of the invention
Technical problem to be solved in the utility model is: provide a kind of hydrostatic spindle, its can using hydrostatic bearing as
Cod is applied, thus realizing high precision, frictional force is little and axial limiting effect is good.
Technical solution adopted in the utility model is: provides a kind of hydrostatic spindle, it includes housing and passes through radial axle
Forward the rotating shaft being actively tied in housing, be provided with for limiting the thrust bearing that rotating shaft is axially moveable in housing, described stops
Thrust bearing includes the first subassembly of shaft shoulder applying longitudinal balance power and second subassembly of countershaft, the first subassembly and second
It is respectively equipped with work oil groove, each work oil groove is matched with each self-corresponding shaft shoulder end face and formed on the end face of the paraxial shoulder of subassembly
The oil-feed branch road of the respective oil groove fluid that works of supply, main oil pocket are respectively equipped with main oil pocket, the first subassembly and the second subassembly
By the first auxiliary oil pocket and the second auxiliary oil away from rotating shaft with nearly rotating shaft respectively of the gap between the shaft shoulder and thrust bearing
Chamber is connected, and the first subassembly and the second subassembly is respectively equipped with when rotating shaft rotating speed is increased to critical value and passes through the first auxiliary
Oil pocket supplies the oil-supplementing system of main oil pocket fluid.Oil pocket can be carried out with the supplement of fluid by oil-supplementing system, thus realizing height
Hydrostatic bearing under rotating speed is applied in thrust bearing.
Described oil-supplementing system refers to be respectively equipped with repairing pipeline in the first subassembly and the second subassembly, repairing pipeline
One end is connected with the second auxiliary oil pocket, and the other end of repairing pipeline is connected with the first auxiliary oil pocket.When hydrostatic spindle needs
Ensure the dynamic balance between the first subassembly and the second subassembly, just enable the shaft shoulder and be axially positioned, be commonly called as in the industry at once hanging
Float in the middle of thrust bearing, reach zero hard friction, so-called hard friction refers to the directly contact friction between rigid end face.
Described journal bearing is hydrostatic bearing；
Oil-supplementing system on first subassembly refers to corresponding to gap and the first subassembly between journal bearing and rotating shaft
First auxiliary oil pocket connection；
Oil-supplementing system on described second subassembly refers to, is provided with repairing pipeline in the second subassembly, the one of repairing pipeline
End is connected with the second auxiliary oil pocket, and the other end of repairing pipeline is connected with the first auxiliary oil pocket corresponding to the second subassembly
Logical.When in hydrostatic spindle containing journal bearing is used as by hydrostatic bearing, due to also constantly there being fluid to overflow in journal bearing,
Pipeline therefore can be simplified, i.e. be used for carrying out repairing to thrust bearing by the oil spill of journal bearing, thus eliminating footpath
To the recovery pipe of the oil spill of bearing, and the oil-supplementing system on the first subassembly of journal bearing, specifically
Refer to the gap between journal bearing and rotating shaft and the auxiliary oil pocket of first corresponding to the first subassembly connects.
Described journal bearing and the first subassembly are integral type structure.Integral structure, can make to connect therebetween
Relation is even closer, firm.
Described second auxiliary oil pocket is provided with oil return opening, and described repairing pipeline is several with the port of the second auxiliary oil pocket junction
The level height at what center is less than the level height of the geometric center of oil return opening, and described oil return opening is connected with the oil-out on housing
Logical.The height of oil return opening setting is higher, and the second auxiliary oil pocket can be made to leave excess oil all the time, for supplying repairing pipeline.
It is provided with the oil inlet passage supplying each work oil groove fluid, one end of described oil inlet passage is only passed through in described housing
Oil-feed branch road on thrust bearing is connected with each work oil groove, and the other end of oil inlet passage is connected with the oil-in on housing.
Described journal bearing includes bearing body, along the radial direction concave shaped of bearing body on the annular inner wall of bearing body
Become at least two oil grooves, described bearing body is provided with circulation canal, the two ends of circulation canal respectively with oil groove along bearing body
Corresponding to circumference both ends connection.The fluid in journal bearing can be eliminated drive with rotating shaft and produce by circulation canal
Raw high pressure, thus the load reducing journal bearing for rotating shaft acts on, can improve on the basis of equivalent motor load and turn
The rotating speed of axle.
It is provided with the oil-recovery tank that the fluid overflowing in oil groove confluxes between two neighboring oil groove.
The length direction of described oil-recovery tank is axially extending along bearing body, and at least one end of oil-recovery tank extends to and runs through
The end face of bearing body or bearing body correspond to the position that each oil-recovery tank is located and are provided with least one and be used for connecting oil-recovery tank
Back oil road.
The position corresponding to each oil groove place on bearing body is respectively provided with the fuel feed hole for supplying each oil groove fluid.
After above structure, hydrostatic spindle of the present utility model compared with prior art has the advantage that first, leads to
Cross thrust bearing and journal bearing oil pressure is suspended on oil film and does not have directly contact, during starting and operating, friction pair is all by pressure
Oil film separates, and resistance to sliding is only from the oily viscosity of itself, because high oil pressure contacts with face, its axially and radially bearing capacity ratio
Traditional bearing rigidity is bigger.Due to main shaft is axially and radially to be contacted by oil film face, different Yu traditional bearing linear contact lay,
Its contact area is bigger, and the pressure ratio that surface of friction pair carries is more uniform, and therefore heating temperature distribution is compared homogeneous thermal expansion and asked
Topic is less, and axial direction, radial direction bearing capacity are bigger, and rigidity is higher, is hardly damaged when colliding.And connect by the soft of oil film
Touch, make that the abrasion of bearing is little, noise is little, oil film also has certain damping effect simultaneously, therefore machining accuracy is high.
Brief description
Fig. 1 is the structural representation of hydrostatic spindle of the present utility model.
Fig. 2 is the schematic side view of hydrostatic spindle of the present utility model.
Fig. 3 is the cross-sectional schematic in " a-a " direction in Fig. 2.
Fig. 4 is the close-up schematic view in " m " region in Fig. 3.
Fig. 5 is the cross-sectional schematic in " b-b " direction in Fig. 2.
Fig. 6 is the close-up schematic view in " n " region in Fig. 5.
Fig. 7 is the cross-sectional schematic in " c-c " direction in Fig. 2.
Fig. 8 is the close-up schematic view in " p " region in Fig. 7.
Fig. 9 is the cross-sectional schematic in " d-d " direction in Fig. 7.
Figure 10 is the structural representation of journal bearing of the present utility model.
Figure 11 is the schematic side view of Figure 10.
Figure 12 is the cross-sectional schematic in " e-e " direction in Figure 11.
Figure 13 is the cross-sectional schematic in " f-f " direction in Figure 11.
Wherein, 1, housing, 2, journal bearing, 2.1, bearing body, 2.2, oil groove, 2.3, circulation canal, 2.4, oil-recovery tank,
2.5th, fuel feed hole, 3, rotating shaft, 4, the shaft shoulder, the 5, first subassembly, the 6, second subassembly, 7, work oil groove, 8, oil-feed branch road, 9, the
One auxiliary oil pocket, the 10, second auxiliary oil pocket, 11, repairing pipeline, 12, oil return opening, 13, oil-out, 14, oil inlet passage, 15, enter
Hydraulic fluid port.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
The utility model provides a kind of hydrostatic spindle, and it is included housing 1 and is rotatably assorted in housing 1 by journal bearing 2
Interior rotating shaft 3, be provided with housing 1 for limiting the thrust bearing that rotating shaft 3 is axially moveable it is characterised in that: described thrust
Bearing includes the first subassembly 5 of the shaft shoulder 4 applying longitudinal balance power and second subassembly 6 of countershaft 3, the first subassembly 5 He
It is respectively equipped with work oil groove 7, each oil groove 7 and each self-corresponding shaft shoulder 4 end face of working on the end face of the paraxial shoulder 4 of the second subassembly 6
Match the main oil pocket of formation, and the first subassembly 5 and the second subassembly 6 are respectively equipped with entering of respective oil groove 7 fluid that works of supply
Oily branch road 8, main oil pocket by gap between the shaft shoulder 4 and thrust bearing respectively with the first auxiliary oil pocket 9 of nearly rotating shaft 3 and away from
Second auxiliary oil pocket 10 of rotating shaft 3 is connected and (that is, the fluid entrance work oil groove 7 of oil-feed branch road 8, then passes through work
Make the gap between oil groove 7 and shaft shoulder end face to flow in the first auxiliary oil pocket 9 and the second auxiliary oil pocket 10, and eventually through oil return
Fluid in first auxiliary oil pocket 9 and the second auxiliary oil pocket 10 is discharged by pipeline), the first subassembly 5 and the second subassembly 6 divide
It is not provided with the oil-supplementing system supplying main oil pocket fluid when rotating shaft 3 rotating speed is increased to critical value by the first auxiliary oil pocket 9.Above-mentioned
Critical value refer to the rotation of rotating shaft 3 to lead to the centrifugal force of fluid persistently to become big, when centrifugal force makes in work oil groove 7
When pressure is less than the pressure differential of the first auxiliary oil pocket 9 and the second auxiliary oil pocket 10, the flow direction of fluid will change, and that is, fluid is by work
Make oil groove 7 inflow the first auxiliary oil pocket 9 and the second auxiliary oil pocket 10 is changed into by the first auxiliary oil pocket 9 and the second auxiliary oil pocket 10
Flow into work oil groove 7.
As illustrated, the first above-mentioned auxiliary oil pocket 9 and the second auxiliary oil pocket 10 are annular oil pocket.
Described oil-supplementing system refers to be respectively equipped with repairing pipeline 11, repairing pipe in the first subassembly 5 and the second subassembly 6
The one end on road 11 is connected with the second auxiliary oil pocket 10, and the other end of repairing pipeline 11 is connected with the first auxiliary oil pocket 9.
Described journal bearing 2 is hydrostatic bearing；
When the first subassembly 5 of journal bearing 2 as shown in the figure and thrust bearing is close, described first subassembly 5
On oil-supplementing system refer between journal bearing 2 and rotating shaft 3 corresponding to gap and the first subassembly 5 first auxiliary oil pocket 9
Connection naturally it is also possible to be proximate to the oil-recovery tank 2.4 of the journal bearing 2 of the first subassembly 5 and journal bearing 2 and rotating shaft 3 it
Between gap with corresponding to the first subassembly 5 first auxiliary oil pocket 9 connect；Pass through the fluid in journal bearing as shown in Figure 8
Can be supplemented in the first auxiliary oil pocket 9 in left side, setting repairing pipeline 11 that need not be extra on the therefore first subassembly 5；
Oil-supplementing system on described second subassembly 6 refers to, is provided with repairing pipeline 11, repairing pipeline in the second subassembly 6
11 one end is connected with the second auxiliary oil pocket 10, and the other end of repairing pipeline 11 is auxiliary with first corresponding to the second subassembly 6
Oil pocket 9 is helped to be connected.
Described journal bearing 2 and the first subassembly 5 are integral type structure.The i.e. right side shape of journal bearing 2 as shown in the figure
Work oil groove 7 is become to use as the first subassembly 5, the first sub-portion in the middle of the journal bearing 2 of nearly thrust bearing and thrust bearing
Part 5 can be that the hair accessory of an entirety processes.
Described second auxiliary oil pocket 10 is provided with oil return opening 12, described repairing pipeline 11 and the second auxiliary oil pocket 10 junction
Port geometric center level height be less than oil return opening 12 geometric center level height, described oil return opening 12 and housing 1
On oil-out 13 connect.Refering to shown in accompanying drawing 9, when the height of oil return opening 12 setting is higher than the height of the connector of repairing pipeline 11
The bottom of the second auxiliary oil pocket 10 can be made when spending, and residual oil is used for supplying repairing pipeline 11 always.Certainly described housing 1 wraps
Include drive end bearing bracket and rear end cap, above-mentioned oil-out 13 is on rear end cap.
It is provided with the oil inlet passage 14 supplying each work oil groove 7 fluid, one end of described oil inlet passage 14 in described housing 1
It is connected with each work oil groove 7 by the oil-feed branch road 8 on thrust bearing, entering on the other end of oil inlet passage 14 and housing 1
Hydraulic fluid port 15 is connected.
Described journal bearing 2 includes bearing body 2.1, along bearing body 2.1 on the annular inner wall of bearing body 2.1
Radially it is recessed at least two oil grooves 2.2, described bearing body 2.1 is provided with circulation canal 2.3, the two of circulation canal 2.3
End respectively with oil groove 2.2 along the circumference of bearing body 2.1 corresponding to both ends connect.
It is provided with the oil-recovery tank 2.4 that the fluid overflowing in oil groove 2.2 confluxes between two neighboring oil groove 2.2.
The length direction of described oil-recovery tank 2.4 is axially extending along bearing body 2.1, and at least one end of oil-recovery tank 2.4
The position extending to the end face running through bearing body 2.1 or bearing body 2.1 corresponding to each oil-recovery tank 2.4 place is provided with least
One is used for connecting the back oil road of oil-recovery tank 2.4.Described back oil road refers to the passage of oil return, its can when set in housing
The passage put it is also possible to when extra setting pipeline.
The position corresponding to each oil groove 2.2 place on bearing body 2.1 is respectively provided with for supplying each oil groove 2.2 fluid
Fuel feed hole 2.5.Fuel feed hole 2.5 size control by the way of orifice restriction or film feedback regulating valve according to needed for oil pocket pressure
Pressing pressure.
, its operation principle is that fluid is multiple in oil-in 15 first taking the embodiment shown in accompanying drawing as a example
Branch road enters housing, and is transported in each oil pocket of journal bearing 2 and thrust through the multiple branch roads in housing 1
In the work oil groove 7 of bearing, in work oil groove 7, form high-voltage oil liquid, so that the shaft shoulder 4 is suspended in the first subassembly 5 and second
Between subassembly 6, fluid flows in the first auxiliary oil pocket 9 and the second auxiliary oil pocket 10 through gap, and eventually through oil return pipe
Oil-out from housing 1 for the road flows out and forms circulation, and when the rotating speed of rotating shaft 3 persistently rises to critical value, due to centrifugal force
Effect, work oil groove 7 in fluid accelerate flow in the second auxiliary oil pocket 10, and first auxiliary oil pocket 9 in fluid return
It flow in work oil groove 7, now the pressure drop in the first auxiliary oil pocket 9, passing through repairing pipeline in the presence of pressure differential will
Fluid in the oil-recovery tank of bearing axial direction after second auxiliary oil pocket 10 and radial direction extracts and is delivered in the first auxiliary oil pocket 9, complete
The continued compensation of work oil groove 7, makes rotating shaft 3 be in all the time in the stable rotation of high speed in pairs.
Above the utility model preferred embodiment is described, but is not to be construed as limiting the scope of the invention.
The utility model is not only limited to above example, and its concrete structure allows to change, all in the utility model demand for independence
The various change made in protection domain is all in protection domain of the present utility model.
Claims (10)
1. a kind of hydrostatic spindle, it includes housing (1) and the rotating shaft being rotatably assorted in housing (1) by journal bearing (2)
(3), be provided with housing (1) for limiting the thrust bearing that rotating shaft (3) is axially moveable it is characterised in that: described thrust shaft
Contract first subassembly (5) of the shaft shoulder (4) applying longitudinal balance power including countershaft (3) and the second subassembly (6), the first sub-portion
Work oil groove (7) is respectively equipped with the end face of part (5) and the paraxial shoulder of the second subassembly (6) (4), respectively work oil groove (7) with each
The corresponding shaft shoulder (4) end face matches and forms main oil pocket, and the first subassembly (5) and the second subassembly (6) are respectively equipped with supply
Each work the oil-feed branch road (8) of oil groove (7) fluid, main oil pocket pass through gap and thrust bearing between for the shaft shoulder (4) respectively with
First auxiliary oil pocket (9) of nearly rotating shaft (3) is connected with the second auxiliary oil pocket (10) away from rotating shaft (3), the first subassembly (5)
Led by the first auxiliary oil pocket (9) supply when rotating shaft (3) rotating speed is increased to critical value with being respectively equipped with the second subassembly (6)
The oil-supplementing system of oil pocket fluid.
2. hydrostatic spindle according to claim 1 it is characterised in that: described oil-supplementing system refers to the first subassembly (5)
Be respectively equipped with repairing pipeline (11) in the second subassembly (6), one end of repairing pipeline (11) and the second auxiliary oil pocket (10) phase
Connection, the other end of repairing pipeline (11) is connected with the first auxiliary oil pocket (9).
3. hydrostatic spindle according to claim 1 it is characterised in that: described journal bearing (2) be hydrostatic bearing；
Oil-supplementing system on first subassembly (5) refers to gap and the first subassembly between journal bearing (2) and rotating shaft (3)
(5) the first auxiliary oil pocket (9) connection corresponding to；
Oil-supplementing system on described second subassembly (6) refers to, is provided with repairing pipeline (11), repairing pipe in the second subassembly (6)
The one end on road (11) is connected with the second auxiliary oil pocket (10), and the other end of repairing pipeline (11) is right with the second subassembly (6) institute
The first auxiliary oil pocket (9) answered is connected.
4. hydrostatic spindle according to claim 3 it is characterised in that: described journal bearing (2) and the first subassembly (5)
For integral type structure.
5. the hydrostatic spindle according to Claims 2 or 3 it is characterised in that: described second auxiliary oil pocket (10) be provided with back
Hydraulic fluid port (12), described repairing pipeline (11) is less than with the level height of the port geometric center of the second auxiliary oil pocket (10) junction
The level height of the geometric center of oil return opening (12), described oil return opening (12) is connected with the oil-out (13) on housing (1).
6. hydrostatic spindle according to claim 1 it is characterised in that: be provided with described housing (1) supply each work oil groove
(7) oil inlet passage (14) of fluid, one end of described oil inlet passage (14) pass through oil-feed branch road (8) on thrust bearing with each
Work oil groove (7) is connected, and the other end of oil inlet passage (14) is connected with the oil-in (15) on housing (1).
7. hydrostatic spindle according to claim 1 it is characterised in that: described journal bearing (2) includes bearing body
(2.1), on the annular inner wall of bearing body (2.1), the radial direction along bearing body (2.1) is recessed at least two oil grooves
(2.2), described bearing body (2.1) is provided with circulation canal (2.3), the two ends of circulation canal (2.3) respectively with oil groove (2.2)
Both ends connection corresponding to along the circumference of bearing body (2.1).
8. hydrostatic spindle according to claim 7 it is characterised in that: be provided with oil groove between two neighboring oil groove (2.2)
(2.2) oil-recovery tank (2.4) that the fluid overflowing in confluxes.
9. hydrostatic spindle according to claim 8 it is characterised in that: the length direction of described oil-recovery tank (2.4) is along bearing
Body (2.1) axially extending, and at least one end of oil-recovery tank (2.4) extends to the end face running through bearing body (2.1) or axle
Hold the position that body (2.1) is located corresponding to each oil-recovery tank (2.4) and be provided with least one and be used for connecting returning of oil-recovery tank (2.4)
Oil duct.
10. hydrostatic spindle according to claim 7 it is characterised in that: corresponding to each oil groove on bearing body (2.1)
(2.2) position being located respectively is provided with the fuel feed hole (2.5) for supplying each oil groove (2.2) fluid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016202225080 | 2016-03-22 | ||
| CN201620222508 | 2016-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205895917U true CN205895917U (en) | 2017-01-18 |
Family
ID=56902128
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620694091.8U Expired - Fee Related CN205895917U (en) | 2016-03-22 | 2016-06-28 | Static pressure bearing |
| CN201610518505.6A Active CN105952797B (en) | 2016-03-22 | 2016-06-28 | hydrostatic spindle |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610518505.6A Active CN105952797B (en) | 2016-03-22 | 2016-06-28 | hydrostatic spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN205895917U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952797A (en) * | 2016-03-22 | 2016-09-21 | 宁波圣圭精工科技有限公司 | Static-pressure spindle |
| CN107120352A (en) * | 2017-04-27 | 2017-09-01 | 上海大学 | A kind of electro spindle dynamic and hydrostatic bearing with the annular oil supply tank of square shape |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058103A (en) * | 2018-09-25 | 2018-12-21 | 宁波鲍斯能源装备股份有限公司 | Water jet helical-lobe compressor |
| CN117205816B (en) * | 2023-11-09 | 2024-02-20 | 苏州中毅精密科技有限公司 | Stirring mechanism supported by hydrostatic bearing and defoaming stirrer with stirring mechanism |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57163031A (en) * | 1981-03-26 | 1982-10-07 | Agency Of Ind Science & Technol | Main spindle device of machine tool |
| JPS62148102A (en) * | 1985-12-20 | 1987-07-02 | Toyoda Mach Works Ltd | Main spindle device |
| JP3555634B2 (en) * | 1995-11-24 | 2004-08-18 | 豊田工機株式会社 | Spindle device |
| CN100351535C (en) * | 2003-11-28 | 2007-11-28 | 广东工业大学 | Machine tool electric main shaft realizing supporting float by adopting hydrostatic bearing |
| CN2765372Y (en) * | 2004-12-08 | 2006-03-15 | 湖南同心科技有限公司 | Dynamic/static pressure bearing electric main shaft |
| CN201058298Y (en) * | 2007-07-05 | 2008-05-14 | 贵州优利斯凯机械有限公司 | Vertical shaft supporting device of vertical shaft type impulsion crusher |
| CN202719025U (en) * | 2012-07-24 | 2013-02-06 | 太原科技大学 | Static-dynamic pressure oil film bearing with thrust effect |
| CN102913544A (en) * | 2012-10-23 | 2013-02-06 | 湖北汽车工业学院 | Static-pressure bearing hinge pair with low rotation speed |
| CN205895917U (en) * | 2016-03-22 | 2017-01-18 | 宁波圣圭精工科技有限公司 | Static pressure bearing |
-
2016
- 2016-06-28 CN CN201620694091.8U patent/CN205895917U/en not_active Expired - Fee Related
- 2016-06-28 CN CN201610518505.6A patent/CN105952797B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952797A (en) * | 2016-03-22 | 2016-09-21 | 宁波圣圭精工科技有限公司 | Static-pressure spindle |
| CN107120352A (en) * | 2017-04-27 | 2017-09-01 | 上海大学 | A kind of electro spindle dynamic and hydrostatic bearing with the annular oil supply tank of square shape |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105952797A (en) | 2016-09-21 |
| CN105952797B (en) | 2018-02-06 |
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