CN108167331A - A kind of static pressure cone revolute pair - Google Patents
A kind of static pressure cone revolute pair Download PDFInfo
- Publication number
- CN108167331A CN108167331A CN201711402562.9A CN201711402562A CN108167331A CN 108167331 A CN108167331 A CN 108167331A CN 201711402562 A CN201711402562 A CN 201711402562A CN 108167331 A CN108167331 A CN 108167331A
- Authority
- CN
- China
- Prior art keywords
- conical surface
- cavity
- bushing
- revolute pair
- static pressure
- 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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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
- F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
- F16C32/0696—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for both radial and axial load
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
According to static pressure cone revolute pair according to the present invention, including accommodating component and rotating member, accommodate component and include receiving member and multiple bushings with the indent conical surface and outer surface；Rotating member has the convex conical surface to match with the indent conical surface, receiving member has multiple channels being used for through fluid, channel is arranged in the inner wall of receiving member and penetrates through the indent conical surface and outer surface, channel includes being arranged on the first cavity to concave on the indent conical surface and the duct for connecting the first cavity and outer surface, bushing has a cylindrical bushing cavity, and bushing is arranged on the opening of the opening of the first cavity and bushing cavity towards the indent conical surface.Static pressure cone revolute pair according to the present invention, convex cone is not in contact with each other when rotating with concave cone face, relative to static pressure cylinder revolute pair, static pressure cone revolute pair has better concentric fit degree, therefore the dynamic rotary precision of revolute pair upper rotary shaft can be improved using gas or Liquid Static-Press Technique, reaches 0.1 1.0 μm.
Description
Technical field
The invention belongs to machinery fields, and in particular to a kind of static pressure cone revolute pair.
Background technology
It is contact condition when the revolute pair of the prior art rotates mostly, rotation precision and efficiency is not high.
The revolute pair combined using gas or Liquid Static-Press Technique with cone structure is that the current main shaft running accuracy that improves has
One of approach of effect.
According to gas (air) or liquid (fluid) static pressure technology basic principle, liquid or gas with certain pressure are allowed
Medium in the multiple chambers for having respectively entered cone revolute pair concave cone face, passes through the pressure for having flow controller that can adjust fluid outside
And flow.Due to there is certain gap between the concave, convex conical surface, convex cone floats, and in contactless state during rotation, but the cone turns
The requirement on machining accuracy for moving secondary concave cone face and chamber is high, and processing cost is big.
Invention content
The present invention is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide a kind of smart to concave cone face and chamber process
It spends of less demanding, the static pressure cone revolute pair of processing cost can be reduced.
The present invention provides a kind of static pressure cone revolute pairs, have the feature that, including accommodating component, including in having
The receiving member and multiple bushings of concave cone face and outer surface；And rotating member, there is the convex conical surface to match with the indent conical surface,
In, receiving member have it is multiple be used for through the channel of fluid, channel be arranged in the inner wall of receiving member and penetrate through the indent conical surface with
Outer surface, channel include being arranged on the first cavity to concave on the indent conical surface and the duct for connecting the first cavity and outer surface,
Bushing has a cylindrical bushing cavity, and bushing is arranged on the opening of the opening of the first cavity and bushing cavity towards interior concave cone
Face, the bottom of bushing cavity are connected with the first cavity.
In static pressure cone revolute pair provided by the invention, it can also have the feature that：Wherein, multiple first cavitys
It is arranged on the indent conical surface along at least one plane of arrangement, plane of arrangement is the plane perpendicular to pivot centre line.
In addition, in static pressure cone revolute pair provided by the invention, can also have the feature that：Wherein, in described
The taper in concave cone face is 60-150 degree, and the taper of the convex conical surface is 60-150 degree, and the quantity of the first cavity is at least 3.
In addition, in static pressure cone revolute pair provided by the invention, can also have the feature that：Wherein, bushing is recessed
The shape of chamber accent is round, ellipse, square, rectangle and it is trapezoidal in any one.
In addition, in static pressure cone revolute pair provided by the invention, can also have the feature that：Wherein, bushing is recessed
The hollow depth of chamber is 0.5-5mm, and bushing cavity total surface area accounts for the 40-60% of indent conical surface total surface area.
In addition, in static pressure cone revolute pair provided by the invention, can also have the feature that：Wherein, interior concave cone
A plurality of isolation channel is also evenly arranged on face, for isolation channel between two adjacent the first cavitys, the elongated end of isolation channel is equal
It is intersected on the rotation axis of rotating member, the groove width of isolation channel is 2-4mm, depth 2-5mm, the indent conical surface and convex conical surface
On be both provided with corrosion-inhibiting coating.
In addition, in static pressure cone revolute pair provided by the invention, can also have the feature that：Wherein, bushing
Top end face is higher than the indent conical surface.
In addition, in static pressure cone revolute pair provided by the invention, can also have the feature that：Wherein, bushing
Top end face is in the arcwall face coincideing with the indent conical surface and matches with the indent conical surface.
In addition, in static pressure cone revolute pair provided by the invention, can also have the feature that：Wherein, bushing with
Receiving member is is fixedly connected with or is detachably connected.
In addition, in static pressure cone revolute pair provided by the invention, can also have the feature that：Wherein, structure is rotated
The convex conical surface upper edge plane of arrangement of part is provided with the annulus with the annular groove of the corresponding indent of bushing cavity or evagination.
The effect of invention
According to static pressure cone revolute pair according to the present invention, including accommodating component and rotating member, accommodate component and include tool
There are the receiving member of the indent conical surface and outer surface and multiple bushings；Rotating member has the convex conical surface to match with the indent conical surface, accommodates
Part is used to be arranged in the inner wall of receiving member by the channel of fluid, channel and penetrate through the indent conical surface and outer surface with multiple,
Channel includes being arranged on the first cavity to concave on the indent conical surface and the duct for connecting the first cavity and outer surface, and bushing has
Cylindrical bushing cavity, bushing are arranged on the opening of the opening of the first cavity and bushing cavity towards the indent conical surface, bushing
The bottom of cavity is connected with the first cavity.
According to static pressure cone revolute pair according to the present invention, convex cone is not in contact with each other when rotating with concave cone face, locates always
In gas or state of liquid friction, in this way, the rotation center jerk value and the foozle of concave-convex cone when convex cone rotates do not have
There is direct relation, i.e., convex cone jerk value is not equal to concave-convex cone deviation from circular from amount, and according to actual measurement, jerk value when convex cone rotates is recessed
The 1/5-1/10 of convex cone deviation from circular from amount, relative to static pressure cylinder revolute pair, static pressure cone revolute pair has preferably matches with one heart
It is right, therefore use gas or Liquid Static-Press Technique that can improve the dynamic rotary precision of the main shaft in revolute pair, reach 0.1-1.0
μm。
In addition, bushing is arranged on after being on the indent conical surface, the processing of bushing cavity can be processed individually, bushing cavity
Difficulty of processing requires to substantially reduce, and so as to improve the working efficiency of bushing cavity processing, reduces processing cost.
Description of the drawings
Fig. 1 is static pressure cone revolute pair schematic diagram in the embodiment of the present invention；
Fig. 2 is receiving member sectional view in the embodiment of the present invention；
Fig. 3 is B direction views in Fig. 2；And
Fig. 4 is the enlarged drawing of A in Fig. 1.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
Example combination attached drawing is applied to be specifically addressed the static pressure cone revolute pair of the present invention.
Embodiment one
As shown in Figure 1, static pressure cone revolute pair 100 includes accommodating component 10 and rotating member 20.
It accommodates component 10 and includes receiving member 11 and multiple bushings 12.
As shown in Fig. 2, receiving member 11 includes the indent conical surface 111, outer surface 112, multiple channels 113 and through-hole 114.
And some do not need to axis by occasion, receiving member 11 can be not provided with through-hole 114.In the present embodiment, accommodate
Part 11 interior 111 center of concave cone face it is horizontally arranged be useful for axis by through-hole 114, receiving member 11 use made of metal
Into.
Channel 113 is arranged in the inner wall of receiving member 11 and penetrates through the indent conical surface 111 and outer surface 112, and channel 113 includes
The the first cavity 113a to concave on the indent conical surface 111 and the duct 113b for connecting the first cavity 113a and outer surface are arranged on,
Channel 113 is used for through fluid, and external high-pressure fluid enters concave cone face 111 by the duct 113b of outer surface.The present embodiment
In, which is liquid oil.
As shown in figure 4, bushing 12 has cylindrical bushing cavity 121, bushing 12 is arranged on opening for the first cavity 113a
At mouthful and the opening of bushing cavity 121 is towards the indent conical surface 111, and the bottom of bushing cavity 121 is connected with the first cavity 113a.
As shown in Figure 2 and Figure 3, multiple first cavity 113a are arranged on along at least one plane of arrangement on the indent conical surface 111,
Plane of arrangement is the plane perpendicular to 20 rotation axis of rotating member, and in embodiment, 20 rotation axis of rotating member is horizontal line, arrangement
Plane is two, and the quantity of bushing 12 is 16, and the bushing quantity in each plane of arrangement is 8.Accommodate component 10 and rotation
Cooperation taper between part 20, determines according to the size of outer radial load and axial load.The taper of the indent conical surface is 60-
150 degree, the taper of convex conical surface is 60-150 degree.The taper of the indent conical surface 111 and the taper of convex conical surface 21 are equal in this example
It is 90 degree.
As shown in Figure 1, rotating member 20 has convex conical surface 21, convex conical surface 21 and 111 phase of the indent conical surface of rotating member 20
Match, have certain gap between the concave, convex conical surface, rotating member 20 is rotated around horizontal line in interior concave cone face 111, when external high pressure
When liquid oil enters concave cone face 111 by the duct 113b of outer surface by bushing 12, rotating member 20 floats, during rotation and concave cone
Face 111 is in contactless state.
In embodiment, rotating member 20 be provided in the horizontal direction with through-hole 114 match for axis by through-hole.
Embodiment two
The present embodiment other structures are identical with embodiment one, the difference is that the shape of 121 mouthfuls of bushing cavity is round, oval
Shape, square, rectangle and it is trapezoidal in any one.
The shape of 121 mouthfuls of bushing cavity is ellipse in embodiment two.
Embodiment three
The present embodiment other structures are identical with embodiment two, the difference is that the depth of the indent of bushing cavity 121 is 0.5-
5mm, 121 total surface area of bushing cavity account for the 40-60% of indent conical surface total surface area.
The depth of the indent of bushing cavity 121 is 2mm in embodiment three, and the total surface area of bushing cavity 121 accounts for interior concave cone
The 45% of 111 total surface area of face.
Example IV
The present embodiment other structures are identical with embodiment three, the difference is that the top end face protrusion indent conical surface 111 of bushing 12,
The top end face of bushing 12 is determined with the distance of the indent conical surface 11 according to bearing capacity, fluid viscosity and liner size size etc..
In example IV, the top end face of bushing 12 is 0.5mm higher than the distance of the indent conical surface 11.
Embodiment five
As shown in figure 4, the present embodiment other structures are identical with embodiment three, unlike bushing 12 top end face be with it is interior
It arcwall face that concave cone face coincide and matches with the indent conical surface.
Embodiment six
The other structures of the present embodiment are identical with embodiment five, the difference is that 12 and first cavity 113a of bushing connects to be fixed
It connects.
Bushing 12 and the first cavity 113a are the mode that is fixedly connected using Nian Jie or be interference fitted, bushing in embodiment six
12 with the first cavity 113a be the mode that is fixedly connected using Nian Jie.
Embodiment seven
The other structures of the present embodiment are identical with embodiment five, the difference is that 12 and first cavity 113a of bushing is detachable
Connection.
Bushing 12 is that the mode being fixedly connected is connect using screw with the first cavity 113a in embodiment seven.
Embodiment eight
The other structures of the present embodiment are identical with embodiment seven, the difference is that being provided with corrosion-inhibiting coating on the indent conical surface 111.
Corrosion-inhibiting coating in embodiment eight is nano ceramics.
Embodiment nine
As shown in figure 3, the other structures of the present embodiment are identical with embodiment five, the difference is that also equal on the indent conical surface 111
Even to be provided with a plurality of isolation channel 115, isolation channel 115 is between two adjacent the first cavity 113a, the extension of isolation channel 115
End is intersected on the rotation axis of revolving member, and the groove width of isolation channel 14 is 2-4mm, depth 2-5mm.
The groove width of isolation channel 115 is 2.5mm in embodiment nine, and depth 2mm, quantity is 8.
Embodiment ten
The other structures of the present embodiment are identical with example IV, the difference is that the 21 upper edge cloth of convex conical surface of revolving member 20
Horizontalization face is provided with two annular grooves 211 with 121 corresponding indent of bushing cavity.
Embodiment 11
The other structures of the present embodiment are identical with example IV, the difference is that the 21 upper edge cloth of convex conical surface of revolving member 20
Horizontalization face is provided with two annulus with 121 corresponding evagination of bushing cavity.
Embodiment 12
The other structures of the present embodiment are identical with embodiment seven, the difference is that being provided with corrosion-inhibiting coating in convex conical surface 21.
Corrosion-inhibiting coating in embodiment 12 is anti-decaying paint.
The effect of embodiment
Static pressure cone revolute pair according to involved by the present embodiment including accommodating component and rotating member, accommodates component and includes
Receiving member and multiple bushings with the indent conical surface and outer surface；Rotating member has the convex conical surface to match with the indent conical surface, holds
Part of receiving has multiple for by the channel of fluid, channel to be arranged in the inner wall of receiving member and penetrates through the indent conical surface and appearance
Face, channel include being arranged on the first cavity of indent on the indent conical surface and the duct for connecting the first cavity and outer surface, bushing tool
There is cylindrical bushing cavity, bushing is arranged on the opening of the opening of the first cavity and bushing cavity towards the indent conical surface, serves as a contrast
The bottom of set cavity is connected with the first cavity.
Static pressure cone revolute pair according to involved by the present embodiment, convex cone are not in contact with each other when rotating with concave cone face, always
Gas or state of liquid friction are in, in this way, rotation center jerk value when convex cone rotates and the foozle of concave-convex cone
It is not directly dependent upon, i.e., convex cone jerk value is not equal to concave-convex cone deviation from circular from amount, and according to actual measurement, jerk value when convex cone rotates is
The 1/5-1/10 of bumps cone deviation from circular from amount, therefore use gas or Liquid Static-Press Technique can improve the main shaft in revolute pair
Dynamic rotary precision, reaches 0.1-1.0 μm.
In addition, bushing is arranged on after being on the indent conical surface, the difficulty of processing of bushing cavity requires to substantially reduce, so as to carry
The high working efficiency of bushing cavity processing, reduces processing cost.
Further, the top end face of bushing is higher than the indent conical surface, and the requirement on machining accuracy of the concave conical surface is not high, has and carries
High working efficiency reduces the effect of indent cone face process cost.
Further, bushing is connect with receiving component to be adhesively fixed, and is had the characteristics that easy to process.
Further, the convex conical surface upper edge plane of arrangement of revolving member is provided with and the corresponding evagination of bushing cavity
Annulus substantially reduces the requirement on machining accuracy of convex conical surface, so as to improve work efficiency, reduces processing cost.
Preferred case of the above embodiment for the present invention, is not intended to limit protection scope of the present invention.
Claims (10)
1. a kind of static pressure cone revolute pair, which is characterized in that including：
Component is accommodated, including the receiving member with the indent conical surface and outer surface and multiple bushings；And
Rotating member has the convex conical surface to match with the indent conical surface, is arranged in the indent conical surface,
Wherein, the receiving member has multiple for by the channel of fluid, the channel to be arranged on the inner wall of the receiving member
In and penetrate through the indent conical surface and the outer surface,
The channel includes being arranged on the first cavity for concaving on the indent conical surface and connects first cavity and described
The duct of outer surface,
The bushing has cylindrical bushing cavity, and the bushing is arranged on the opening of first cavity and the bushing
The opening of cavity is connected towards the indent conical surface, the bottom of the bushing cavity with first cavity.
2. static pressure cone revolute pair according to claim 1, it is characterised in that：
Wherein, multiple first cavitys are arranged on along at least one plane of arrangement on the indent conical surface, the plane of arrangement
For the plane perpendicular to the pivot centre line.
3. static pressure cone revolute pair according to claim 2, it is characterised in that：
Wherein, the taper of the indent conical surface is 60-150 degree, and the taper of the convex conical surface is 60-150 degree,
The quantity of first cavity is at least 3.
4. static pressure cone revolute pair according to claim 1, it is characterised in that：
Wherein, the shape of the bushing cavity accent be round, ellipse, square, rectangle and it is trapezoidal in any one.
5. static pressure cone revolute pair according to claim 1, it is characterised in that：
Wherein, the hollow depth of the bushing cavity is 0.5-5mm, and the bushing cavity total surface area accounts for the indent conical surface
The 40-60% of total surface area.
6. static pressure cone revolute pair according to claim 2, it is characterised in that：
Wherein, also it is evenly arranged with a plurality of isolation channel on the indent conical surface, the isolation channel is located at adjacent two described the
Between one cavity, the elongated end of the isolation channel is intersected on the rotation axis of the rotating member,
The groove width of the isolation channel be 2-4mm, depth 2-5mm,
Corrosion-inhibiting coating is both provided in the indent conical surface and convex conical surface.
7. static pressure cone revolute pair according to claim 1, it is characterised in that：
Wherein, the top end face of the bushing is higher than the indent conical surface.
8. static pressure cone revolute pair according to claim 1, it is characterised in that：
Wherein, the top end face of the bushing is the arcwall face coincideing with the indent conical surface and matches with the indent conical surface.
9. static pressure cone revolute pair according to claim 7 or 8, it is characterised in that：
Wherein, the bushing is to be fixedly connected or be detachably connected with the receiving member.
10. static pressure cone revolute pair according to claim 2, it is characterised in that：
Wherein, plane of arrangement described in the convex conical surface upper edge of the revolving member is provided with corresponding interior with the bushing cavity
Recessed annular groove or the annulus of evagination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711402562.9A CN108167331A (en) | 2017-12-22 | 2017-12-22 | A kind of static pressure cone revolute pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711402562.9A CN108167331A (en) | 2017-12-22 | 2017-12-22 | A kind of static pressure cone revolute pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108167331A true CN108167331A (en) | 2018-06-15 |
Family
ID=62523610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711402562.9A Withdrawn CN108167331A (en) | 2017-12-22 | 2017-12-22 | A kind of static pressure cone revolute pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108167331A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2738400A1 (en) * | 1977-08-25 | 1979-03-01 | Hohenzollern Huettenverwalt | MACHINE TOOL WITH HYDROSTATICALLY MOUNTED FINE TURNING SPINDLE |
| US20120263402A1 (en) * | 2011-04-18 | 2012-10-18 | Carpe Diem Technologies, Inc. | Fluid bearing assembly |
| CN202926870U (en) * | 2012-11-16 | 2013-05-08 | 陞鸿机械股份有限公司 | Dynamic pressure bearing device |
| RU2605658C2 (en) * | 2015-05-20 | 2016-12-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Государственный университет - учебно-научно-производственный комплекс" (ФГБОУ ВПО "Госуниверситет-УНПК") | Combined radial-axial gas-dynamic spade journal bearing |
-
2017
- 2017-12-22 CN CN201711402562.9A patent/CN108167331A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2738400A1 (en) * | 1977-08-25 | 1979-03-01 | Hohenzollern Huettenverwalt | MACHINE TOOL WITH HYDROSTATICALLY MOUNTED FINE TURNING SPINDLE |
| US20120263402A1 (en) * | 2011-04-18 | 2012-10-18 | Carpe Diem Technologies, Inc. | Fluid bearing assembly |
| CN202926870U (en) * | 2012-11-16 | 2013-05-08 | 陞鸿机械股份有限公司 | Dynamic pressure bearing device |
| RU2605658C2 (en) * | 2015-05-20 | 2016-12-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Государственный университет - учебно-научно-производственный комплекс" (ФГБОУ ВПО "Госуниверситет-УНПК") | Combined radial-axial gas-dynamic spade journal bearing |
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Application publication date: 20180615 |