CN111306144B - Automatic-balancing-clearance friction-free rotary axial oil distribution chuck - Google Patents
Automatic-balancing-clearance friction-free rotary axial oil distribution chuck Download PDFInfo
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- CN111306144B CN111306144B CN202010166095.XA CN202010166095A CN111306144B CN 111306144 B CN111306144 B CN 111306144B CN 202010166095 A CN202010166095 A CN 202010166095A CN 111306144 B CN111306144 B CN 111306144B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
Abstract
The invention relates to an automatic-balancing gap friction-free rotary axial oil distribution chuck, which belongs to the field of aerospace hydraulic elements and consists of a central disc, inner disc assemblies and outer disc assemblies, wherein the central disc is fixed in the middle, the two inner disc assemblies are arranged on two sides of the central disc, and the two outer disc assemblies are respectively sleeved in the inner disc assemblies, so that the automatic-balancing gap friction-free rotary axial oil distribution chuck has the advantages that: based on the symmetrical balance principle, in the process of conveying a certain pressure oil medium, symmetrical axial inner thrust is formed between the inner disc component and the outer disc component, so that a constant equal distribution oil clearance is ensured between the inner disc component and the outer disc component, and in the relative rotating process of the inner disc component and the outer disc component, oil films with symmetrical thicknesses are formed, so that a rotary support (a non-contact kinematic pair) is realized, and a clearance sealing effect is also realized.
Description
Technical Field
The invention relates to an automatic-balancing-gap friction-free rotating axial oil distribution chuck, in particular to a friction-free rotating chuck which adopts a symmetrical distribution structure to form balancing force and belongs to the field of aerospace hydraulic elements.
Background
In the prior art, in the design of an oil distribution chuck, many problems are faced, such as unbalanced clearance, overlarge friction force caused by contact, and the overturning moment is generated, and the service life is often low, and particularly, when the oil distribution chuck is actually applied to a rotary joint, the caused effects are not limited to the reduction of volumetric efficiency and mechanical efficiency.
In order to overcome the problems, a group of symmetrical friction-free rotating axial oil distribution chucks capable of automatically balancing gaps is designed by utilizing a symmetrical balance principle, so that floating friction of all components can be realized through an oil film, the overturning moment is overcome by utilizing balance force, the service life is prolonged, and meanwhile, the gap sealing effect can be achieved.
Disclosure of Invention
In view of the above-mentioned deficiencies, the present invention provides an automatic gap-balancing friction-free rotating axial oil distribution chuck.
The invention is realized by the following technical scheme: the automatic-gap-balancing friction-free rotary axial oil distribution chuck comprises a central disc, an inner disc assembly and outer disc assemblies, wherein the central disc is fixed in the middle, the two inner disc assemblies are arranged on two sides of the central disc, and the two outer disc assemblies are respectively sleeved outside the inner disc assemblies.
The central disc takes a central annular table as a base body, a central-edge concave step is processed on the outer edge of the central annular table, two end faces of the central annular table are provided with through central-disc oil outlets, a central-disc oil inlet is formed in the central-edge concave step towards the central-disc oil outlets, and two end faces of the central annular table are provided with fine threaded holes.
The inner disc assembly is characterized in that a boss is used as a base body, concave steps at the outer edge of the boss are processed, concave steps at the inner edge of an inner ring are processed at the inner edge of the boss, small chamfers are arranged at the inner edge of the large end face of the boss, large chamfers are arranged at the inner edge of the small end face of the boss, concave steps at the inner ring are processed at the middle end face of the boss, a straight oil duct is processed inwards at the concave steps at the inner ring, an inclined oil duct communicated to the straight oil duct is processed at the large chamfers, a buffer groove is processed at the inner edge of the middle end face of the boss, a through hole is formed in the large end face of the boss, and a coarse threaded hole is formed in the small end face.
The outer disc assembly is characterized in that the outer ring platform is used as a base body, the outer edge of the outer ring platform is provided with an outer disc outer edge concave step, the outer end face of the outer ring platform is provided with a stepped hole, the outer end face outer frame edge of the outer ring platform is provided with an outer disc outer edge chamfer, and the outer end face inner edge of the outer ring platform is provided with an outer disc inner edge chamfer.
Two outer disc assemblies are clamped with the central disc and the two outer disc assemblies through screws inserted into stepped holes and fine threaded holes, and one inner disc assembly is clamped with the central disc and the two inner disc assemblies through screws inserted into through holes and coarse threaded holes.
Furthermore, the inner disc assembly and the outer disc assembly meet the principle of symmetrical balance through the design of a special medium channel, and in the process of distributing certain pressure oil medium, symmetrical relative internal force is formed between the inner disc assembly and the outer disc assembly, so that the inner disc assembly and the outer disc assembly move relatively, the relative stable mutual position relation is guaranteed to be maintained, and the distribution gap is guaranteed to be consistent.
Further, the symmetrical clearance cavity that inner disc subassembly and outer disc subassembly structurally formed, under the pressure medium effect, not only in the axial, also form stable balanced centripetal relative internal force in radial, through rationally leaking the aperture and arranging and setting, control internal force size, reach and guarantee stable inside and outside dish relative rotation concentricity.
Further, the inner disc assembly and the outer disc assembly are structurally characterized in that the central disc oil inlet and the central disc oil outlet are communicated, when pressure media pass through, overturning moment cannot be generated, and the inner disc assembly and the outer disc assembly are more stable in a high-speed relative rotation process.
Furthermore, the inner disc assembly and the outer disc assembly are sprayed with the non-metallic ceramic materials with certain thickness on one side between distribution gaps, the abrasion resistance before balance is not reached at the moment of mutual rotation starting is improved, and the inner disc assembly and the outer disc assembly are integrally coated with the antifriction coating process.
Further, in the process of conveying certain pressure oil media, symmetrical axial inner thrust is formed between the inner disc component and the outer disc component, constant equal axial distribution gaps are automatically guaranteed under the action of the inner thrust, oil films with symmetrical thicknesses are formed, and non-contact type rotary medium distribution is carried out.
The invention has the advantages that: based on the symmetrical balance principle, in the process of conveying a certain pressure oil medium, symmetrical axial inner thrust is formed between the inner disc component and the outer disc component, and then constant and equal distribution oil clearance is ensured between the inner disc component and the outer disc component. In the relative rotation process of the inner and outer disc assemblies, oil films with symmetrical thicknesses are formed, so that the rotary support (non-contact kinematic pair) and the gap sealing function are realized.
Drawings
FIG. 1 is an isometric view of the present invention in its entirety;
FIG. 2 is a cut-away isometric view of the entirety 3/4 of the present invention;
FIG. 3 is a cross-sectional, isometric view 3/4 of the center disk of the present invention;
FIG. 4 is a cross-sectional isometric view 3/4 of the inner disc assembly of the present invention;
FIG. 5 is a cross-sectional isometric view 3/4 of the outer disc assembly of the present invention;
fig. 6 is a cut-away isometric view of the entirety 1/4 of the present invention.
In the figure, 1, a central disc; 2. an inner disc assembly; 3. an outer disc assembly; 101. a central ring platform; 102. fine threaded holes; 103. an oil outlet of the central disc; 104. a step is recessed at the middle edge; 105. an oil inlet of the central disc; 201. a boss; 202. the outer edge of the inner disc is provided with a concave step; 203. the inner edge of the inner ring is provided with a concave step; 204. small chamfering; 205. large chamfering; 206. an inclined oil duct; 207. the inner ring is provided with a concave step; 208. a straight oil duct; 209. a buffer tank; 210. a through hole; 211. a coarse threaded hole; 301. an outer ring table; 302. the outer edge of the outer disc is provided with a concave step; 303. chamfering the outer edge of the outer disc; 304. a stepped hole; 305. the inner edge of the outer disc is chamfered.
Detailed Description
An automatic-gap-balancing friction-free rotary axial oil distribution chuck comprises a central disc 1, inner disc assemblies 2 and outer disc assemblies 3, wherein the central disc 1 is fixed in the middle, the two inner disc assemblies 2 are arranged on two sides of the central disc 1, and the two outer disc assemblies 3 are respectively sleeved inside the inner disc assemblies 2.
Further, the central disk 1 uses a central annular table 101 as a base body, a central-edge concave step 104 is processed on the outer edge of the central annular table 101, two end faces of the central annular table 101 are provided with a through central-disk oil outlet 103, a central-disk oil inlet 105 is arranged from the central-edge concave step 104 to the central-disk oil outlet 105, and two end faces of the central annular table 101 are provided with fine threaded holes 102.
Further, the inner disc assembly 2 is characterized in that a boss 201 is used as a base body, an inner disc outer edge concave step 202 is processed on the outer edge of the boss 201, an inner ring inner edge concave step 203 is processed on the inner edge of the boss 201, a small chamfer 204 is arranged on the inner edge of the large end face of the boss 201, a large chamfer 205 is arranged on the inner edge of the small end face of the boss 201, an inner ring concave step 203 is processed on the middle end face of the boss 201, a straight oil channel 208 is processed inwards by the inner ring concave step 207, an inclined oil channel 206 communicated to the straight oil channel 208 is processed on the large chamfer 205, a buffer groove 209 is processed on the inner edge of the middle end face of the boss 201, a through hole 210 is arranged on the large end face of the boss 201, and a coarse threaded hole 211 is arranged on the small end face.
Further, the outer disc assembly 3 uses an outer ring table 301 as a base body, a recessed step 302 of the outer disc outer edge is processed on the outer edge of the outer ring table 301, a stepped hole 304 is processed on the outer end face of the outer ring table 301, an outer disc outer edge chamfer 303 is arranged on the outer frame edge of the outer end face of the outer ring table 301, and an outer disc inner edge chamfer 305 is arranged on the inner edge of the outer end face of the outer ring table 301.
Further, two of the outer disc assemblies 3 are clamped between the central disc 1 and the two outer disc assemblies 3 by inserting screws into the stepped holes 304 and the fine screw holes 102, and one of the inner disc assemblies 2 is clamped between the central disc 1 and the two inner disc assemblies 2 by inserting screws into the through holes 210 and the coarse screw holes 211.
Further, the inner disc assembly 2 and the outer disc assembly 3 meet the principle of symmetrical balance through the design of a special medium channel, and in the process of distributing a certain pressure oil medium, symmetrical relative internal forces are formed between the inner disc assembly 2 and the outer disc assembly 3, so that the inner disc assembly 2 and the outer disc assembly 3 move relatively, a relatively stable mutual position relation is guaranteed to be maintained, and a distribution gap is guaranteed to be consistent.
Further, the inner disc assembly 2 and the outer disc assembly 3 structurally form a symmetrical gap cavity, under the action of a pressure medium, stable and balanced centripetal relative internal force is formed in the axial direction and the radial direction, the internal force is controlled through reasonable arrangement and setting of leakage small holes, and stable concentricity of relative rotation of the inner disc and the outer disc is guaranteed.
Further, the inner disc assembly 2 and the outer disc assembly 3 are structurally characterized in that the central disc oil inlet 105 and the central disc oil outlet 103 are communicated, when pressure media pass through, overturning moment cannot be generated, and the inner disc assembly and the outer disc assembly are more stable in a high-speed relative rotation process.
Further, the inner disc assembly 2 and the outer disc assembly 3 adopt the non-metallic ceramic material sprayed with a certain thickness on one side between distribution gaps, the abrasion resistance before balance is not reached at the moment of mutual rotation starting is improved, and the inner disc assembly 2 and the outer disc assembly 3 integrally adopt a coating antifriction coating process.
Further, in the process of conveying certain pressure oil (gas) media, symmetrical axial inner thrust is formed between the inner disc assembly 2 and the outer disc assembly 3, under the action of the inner thrust, constant and equal axial distribution gaps are automatically guaranteed, oil (gas) films with symmetrical thicknesses are formed, and non-contact type rotary medium distribution is carried out.
It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.
Claims (7)
1. The utility model provides an automatic balanced clearance does not have rotatory axial oil distribution chuck of friction, is constituteed by center disk, interior dish subassembly and outer dish subassembly, the center disk fix in the centre, two interior dish subassemblies are installed in the both sides of center disk, two outer dish subassemblies overlap respectively in interior dish subassembly inside and outside which characterized in that:
the central disc takes a central annular table as a base body, a central-edge concave step is processed on the outer edge of the central annular table, two end faces of the central annular table are provided with through central-disc oil outlets, a central-disc oil inlet is formed in the central-edge concave step towards the central-disc oil outlet, and two end faces of the central annular table are provided with fine threaded holes;
the inner disc assembly is characterized in that a boss is used as a base body, concave steps at the outer edge of the boss are processed, concave steps at the inner edge of an inner ring are processed at the inner edge of the boss, small chamfers are arranged at the inner edge of the large end face of the boss, large chamfers are arranged at the inner edge of the small end face of the boss, concave steps at the inner ring are processed at the middle end face of the boss, a straight oil duct is processed inwards at the concave steps of the inner ring, an inclined oil duct communicated with the straight oil duct is processed at the large chamfers, a buffer groove is processed at the inner edge of the middle end face of the boss, a through hole is arranged at the large end face of the boss, and a coarse threaded hole is arranged at the small end face;
the outer disc assembly is characterized in that the outer ring platform is used as a base body, the outer edge of the outer ring platform is provided with an outer disc outer edge concave step, the outer end face of the outer ring platform is provided with a stepped hole, the outer end face outer frame edge of the outer ring platform is provided with an outer disc outer edge chamfer, and the outer end face inner edge of the outer ring platform is provided with an outer disc inner edge chamfer.
2. The self-balancing gap frictionless rotating axial oil distribution chuck of claim 1, wherein: two outer disc assemblies are clamped with the central disc and the two outer disc assemblies through screws inserted into stepped holes and fine threaded holes, and one inner disc assembly is clamped with the central disc and the two inner disc assemblies through screws inserted into through holes and coarse threaded holes.
3. The self-balancing gap frictionless rotating axial oil distribution chuck of claim 2, wherein: the inner disc assembly and the outer disc assembly meet the principle of symmetrical balance through the design of a special medium channel, and in the process of distributing certain pressure oil medium, symmetrical relative internal force is formed between the inner disc assembly and the outer disc assembly, so that the inner disc assembly and the outer disc assembly move relatively, the relative stable mutual position relation is maintained, and the distribution gap is ensured to be consistent.
4. An automatically balancing gap frictionless rotating axial oil distribution chuck as claimed in claim 3, wherein: the inner disc component and the outer disc component structurally form a symmetrical gap cavity, under the action of a pressure medium, stable and balanced centripetal relative internal force is formed in the axial direction and the radial direction, and the internal force is controlled through arrangement and setting of reasonable leakage small holes, so that stable concentricity of relative rotation of the inner disc and the outer disc is ensured.
5. The self-balancing gap frictionless rotating axial oil distribution chuck of claim 4, wherein: the inner disc assembly and the outer disc assembly are structurally characterized in that the central disc oil inlet and the central disc oil outlet are mutually communicated, when pressure media pass through, overturning moment cannot be generated, and the inner disc assembly and the outer disc assembly are more stable in a high-speed relative rotation process.
6. The self-balancing gap frictionless rotating axial oil distribution chuck of claim 5, wherein: the inner disc assembly and the outer disc assembly are sprayed with the non-metallic ceramic materials with certain thickness on one side between distribution gaps, the abrasion resistance before balance is not reached at the moment of mutual rotation starting is improved, and the inner disc assembly and the outer disc assembly are integrally coated with the antifriction coating process.
7. The self-balancing gap frictionless rotating axial oil distribution chuck of claim 6, wherein: in the process of conveying certain pressure oil medium, symmetrical axial inner thrust is formed between the inner disc component and the outer disc component, constant equal axial distribution clearance is automatically guaranteed under the action of the inner thrust, an oil film with symmetrical thickness is formed, and non-contact type rotation medium distribution is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010166095.XA CN111306144B (en) | 2020-03-11 | 2020-03-11 | Automatic-balancing-clearance friction-free rotary axial oil distribution chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010166095.XA CN111306144B (en) | 2020-03-11 | 2020-03-11 | Automatic-balancing-clearance friction-free rotary axial oil distribution chuck |
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| Publication Number | Publication Date |
|---|---|
| CN111306144A CN111306144A (en) | 2020-06-19 |
| CN111306144B true CN111306144B (en) | 2022-02-11 |
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| CN202010166095.XA Active CN111306144B (en) | 2020-03-11 | 2020-03-11 | Automatic-balancing-clearance friction-free rotary axial oil distribution chuck |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453252C (en) * | 2007-09-14 | 2009-01-21 | 武汉船用机械有限责任公司 | Method for processing split-type shaft system distribution oil ring |
| JP5817199B2 (en) * | 2011-04-22 | 2015-11-18 | 日本精工株式会社 | Toroidal continuously variable transmission |
| CN203743193U (en) * | 2013-12-30 | 2014-07-30 | 汉美综合科技（常州）有限公司 | Leakage stopping type thrust bearing |
| CN105134693B (en) * | 2015-08-05 | 2017-01-04 | 中煤科工集团西安研究院有限公司 | There is the oil distribution structure of clearance automatic compensation |
| CN106741777B (en) * | 2017-01-16 | 2019-01-01 | 中国船舶重工集团公司第七0四研究所 | Floating ring type oil distributor |
| CN109916606B (en) * | 2019-01-23 | 2020-12-15 | 武汉船用机械有限责任公司 | Shaft type oil distributor reliability test system |
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