CN206495890U - A kind of Hydrodynamic-static Thrust Bearings in Water Turbo rectangle arc chamber rectangle lubricating pad - Google Patents
A kind of Hydrodynamic-static Thrust Bearings in Water Turbo rectangle arc chamber rectangle lubricating pad Download PDFInfo
- Publication number
- CN206495890U CN206495890U CN201621359116.5U CN201621359116U CN206495890U CN 206495890 U CN206495890 U CN 206495890U CN 201621359116 U CN201621359116 U CN 201621359116U CN 206495890 U CN206495890 U CN 206495890U
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- China
- Prior art keywords
- rectangle
- lubricating pad
- hydrodynamic
- thrust bearings
- oil
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- 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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Abstract
A kind of Hydrodynamic-static Thrust Bearings in Water Turbo rectangle arc chamber rectangle lubricating pad.The utility model is related to a kind of Hydrodynamic-static Thrust Bearings in Water Turbo, low for the current rectangle lubricating pad bearing capacity of solution, the problems such as physical dimension is very big.Although hydrodynamic bearing large carrying capacity, hydrodynamic bearing is under the conditions of startup or parking, low-speed heave-load and commutation all it cannot be guaranteed that forming hydrodynamic lubrication.And hydrostatic bearing can start under loads, temperature rise is relatively low, and kinematic accuracy is high.With reference to dynamic and static pressure thrust bearing, each advantage devises a kind of Hydrodynamic-static Thrust Bearings in Water Turbo rectangle arc chamber rectangle lubricating pad.Lubricating pad main body is rectangle, is a circular shape from oil pocket in terms of the side surface direction of lubricating pad, and vertical view is that a rectangle is located at lubricating pad geometric center symmetric position, has a fuel feed hole on oil pocket, lubricating pad rectangular body both sides process an oil-recovery tank respectively.The utility model is used for heavy carrying platen.
Description
Technical field:
The utility model is related to a kind of lubricating pad of Hydrodynamic-static Thrust Bearings in Water Turbo.
Background technology:
Large scale hydrostatic support is used in heavy type numerical control mechanized equipment, is lubricated using fluid film fully liquid.It has
Startup power is small, oil film rigidity is big, efficiency high the features such as, but its bearing capacity is than relatively low.And carry energy for hydrodynamic bearing
Power is high, simple in construction, easy to process.But hydrodynamic bearing is in slow-speed of revolution heavy duty, or it is difficult to ensure that producing dynamic under the conditions of commutation
Press oil film.Then the utility model holds respective advantage with reference to dynamic and static last item and devises a kind of novel movable hydrostatic lubricating pad, to carry
High bearing load carrying capacity.
The content of the invention:
The purpose of this utility model is to design a kind of Hydrodynamic-static Thrust Bearings in Water Turbo rectangle arc chamber rectangle lubricating pad, solution rectangle oil
The small shortcoming of pad carrying scope.
The utility model solves the technical scheme that its technical problem used：A kind of Hydrodynamic-static Thrust Bearings in Water Turbo rectangle arc chamber
Rectangle lubricating pad includes lubricating pad main body, and lubricating pad main body is rectangle, and the oil pocket of lubricating pad is from side to seeing it is a circular shape, and vertical view is one
Rectangle is located at lubricating pad geometric center, and a fuel feed hole, respectively one oil return of processing of lubricating pad rectangular body both sides are machined with oil pocket
Groove.
The utility model is compared with existing rectangle lubricating pad with advantages below：By the annular cloth of 12 the utility model lubricating pads
Put on hydrostatic thrust bearing, hydrostatic thrust bearing is arranged on large scale lathe base, is then arranged on platen
On lubricating pad, the hydraulic oil with certain viscosity is continuously sent into fuel feed hole by oil pump, makes support member and by support member
Between formed one layer of hydrodynamic oil film, its lathe base and workbench are separated, make its fully liquid lubrication.When lathe startup work
When, machine tool chief axis rotates at a high speed, and workbench rotates also with high speed, so that platen has certain phase with fan-shaped lubricating pad
It is that arc-shaped cavity lubricating pad and horizontal oil film are formed in wedge gap, gap in the movement direction in being vertically oriented to movement velocity
Hydraulic oil formation upwards pressure to be balanced with external applied load, and the dynamic pressure oil of external applied load can be born by thus being formed in wedge gap
Film.Empirical tests dynamic and static pressure loading capacity of oil film brings up to 35% to 180%, and effectively solving hydrostatic support carrying, scope is small asks
Topic.
Brief description of the drawings:
Fig. 1 is the three-dimensional front view of the utility model, and Fig. 2 is the utility model 3-D view top view.
Embodiment:
Illustrated according to Fig. 1-2, Hydrodynamic-static Thrust Bearings in Water Turbo rectangle arc chamber rectangle lubricating pad includes lubricating pad main body 1, lubricating pad main body is
Rectangle, it is an arc 2 that the oil pocket side vertical direction of lubricating pad, which is seen, and vertical view is that a rectangle is symmetrical positioned at lubricating pad geometric center,
A fuel feed hole 5 is machined with oil pocket, oil-recovery tank 3 and 4 is processed respectively in the fan-shaped main body both sides of lubricating pad.12 this practicalities are new
Type lubricating pad is circular layout on hydrostatic thrust bearing, and hydrostatic thrust bearing is arranged on large scale lathe base, then by lathe
Workbench is arranged on above lubricating pad, and the hydraulic oil with certain viscosity is continuously sent into fuel feed hole 5 by oil pump, makes branch
Support member and by between support member formed one layer of hydrodynamic oil film, lathe base is separated with workbench, make its fully liquid lubricate subtract
Few friction.When lathe unlatching work, workbench rotates at a high speed with machine tool chief axis, so that platen has with fan-shaped lubricating pad
There is certain relative velocity, be that arc-shaped cavity lubricating pad and horizontal oil film form wedge gap in the movement direction in being vertically oriented,
Hydraulic oil formation upwards pressure in gap is balanced with external applied load, and external applied load can be born by thus being formed in wedge gap
Dynamic pressure oil film.Empirical tests dynamic and static pressure loading capacity of oil film brings up to 35% to 180%, effectively solves hydrostatic support carrying scope
Small the problem of.
Claims (2)
1. a kind of Hydrodynamic-static Thrust Bearings in Water Turbo rectangle arc chamber rectangle lubricating pad, it is characterised in that：By the optimization of existing rectangular cavity rectangle lubricating pad
Improve, static pressure oil film main body is rectangular configuration, oil pocket viewed from above is rectangle, and oil pocket lateral section is arcuate structure, an oil-feed
Pipe is connected with oil pocket, has an oil-recovery tank respectively in rectangle lubricating pad both sides.
2. a kind of Hydrodynamic-static Thrust Bearings in Water Turbo rectangle arc chamber rectangle lubricating pad according to claim 1, it is characterised in that：Oil film with
Platen to move linearly, horizontal oil film is along the speed direction of motion and arc chamber formation convergence wedge shape, under certain rotating speed
Dynamic pressure oil film is produced, so as to increase lubricating pad bearing capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621359116.5U CN206495890U (en) | 2016-12-12 | 2016-12-12 | A kind of Hydrodynamic-static Thrust Bearings in Water Turbo rectangle arc chamber rectangle lubricating pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621359116.5U CN206495890U (en) | 2016-12-12 | 2016-12-12 | A kind of Hydrodynamic-static Thrust Bearings in Water Turbo rectangle arc chamber rectangle lubricating pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206495890U true CN206495890U (en) | 2017-09-15 |
Family
ID=59801342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621359116.5U Expired - Fee Related CN206495890U (en) | 2016-12-12 | 2016-12-12 | A kind of Hydrodynamic-static Thrust Bearings in Water Turbo rectangle arc chamber rectangle lubricating pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206495890U (en) |
-
2016
- 2016-12-12 CN CN201621359116.5U patent/CN206495890U/en not_active Expired - Fee Related
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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: 20170915 Termination date: 20181212 |