CN106195023B - Clearance sealing structure and bearing - Google Patents

Abstract

The present invention relates to a kind of simple clearance sealing structures of structure, including fluid and holding structure, the fluid to form at least one clearance seal in the gap that kinetoplast and quiet body need the wall surface sealed;The holding structure setting is on the wall surface of one or two of kinetoplast and quiet body, for keeping fluids in scheduled sealing position limitation fluid and form between wall surface Fluid Sealing ring.Based on this sealing mechanism, the invention further relates to the energy-storage batteries of a kind of thrust bearing and the application thrust bearing, the coaxial heart sleeve of bearing blowout patche forms clearance cavity between more than two Fluid Sealing rings in axle bed, being provided with clearance seal between the outside wall surface of blowout patche and the relative wall of axle bed.Sealing structure structure provided by the invention is simple, good seal performance；Thrust bearing has the characteristics that low abrasion, axial bearing capacity be big, radial stabilization, good seal performance.

Description

Clearance sealing structure and bearing

Technical field

The present invention relates to a kind of sealing structure, especially a kind of clearance sealing structure applied on bearing and it is based on the stream The thrust bearing of body sealing mechanism.

Background technique

General sealing means are other than Mechanical Contact friction mode, energy consumption is smaller, frictional force is smaller mode one As be magnet fluid sealing, but that there are costs is high, difficulty of processing is big, structure is complicated, eddy-current loss, fever and cannot be resistant to high temperatures etc. Defect.

The demand of bearing is very extensive, is the critical mechanical basic part of the national economic development, and importance is self-evident.It is mechanical The bearing of the way of contact, abrasion and resistance are intrinsic disadvantage, especially thrust bearing.Realizing more low-loss method at present is Super-conductive magnetic suspension thrust bearing, but cost is high, structure is complicated that, oneself power consumption low with axial bearing capacity etc. is to be difficult to solve always The problem of.In order to reduce abrasion, reduction frictional force loss generally uses dynamic/hydrostatic gas-lubricated bearing or dynamic/hydrostatic bearing, but It is there are problems that leaking gas/liquid, or need individually for the power device of air-liquid.

Flywheel energy storage is a kind of physics energy storage, and compared with chemical energy storage, flywheel energy storage is in environmental protection, high reliability, work Make that the service life is very long, charge/discharge speed can be fast or slow etc. the born advantage having, is that chemical energy storage is incomparable.Existing rank Section, the Fly wheel energy storage system of large capacity is the problem is that electric energy can not be saved for a long time, the reason is that reducing thrust without method The frictional force of bearing, the frictional force of the thrust bearing for the big axial force that especially big mass flywheel generates, to cannot achieve Flywheel keeps revolving speed to micro- consumption in the process of rotation for a long time, how to reduce bearing loss when flywheel operating, wind moussing loss and No-load loss becomes big energy flywheel high efficiency, the critical issue that long-time energy storage must solve.And solves this technology hardly possible Topic, in solar power generation, wind-power electricity generation, peak regulation, the fields such as automobile energy storage flying wheel battery have very extensive purposes.

Solid is difficult to move between molecule and molecule due to the characteristic of itself, and condensation process lead to the surface of solids can not Cross molecular surface tension and be condensed into smooth superficial layer, at least in molecule or atomic scale, surface be random height not Flat, this wall surface for resulting in sealed solid must be in close contact to consume energy, and contact surface must by lubricating oil come Friction bring abrasion is prevented, the loss of energy and the physical abrasion of wall surface are inevitable.

Although the self-characteristic and mobility of gas, compares for liquid, do not meet Pascal's law, that is, press It can be averaged by force from anywhere in gas can reach, final to keep pressure Anywhere equal, this characteristic causes commonly The mode of contact sealing can not thoroughly take precautions against the infiltration of air at all.

Fluid is due to itself characteristic, i.e. mobility and Incoercibility, so that internal fluid, fluid and fluid, fluid It with the contact surface of solid, can unlimitedly coincide, but just because of there is mobility, that is, fluid can accompany the direction stream of pressure Dynamic, this allows for fluid can not individually realize the function of clearance seal under conventional method as seal, be with lubricating oil Example, it usually needs additional acting comes lubricating oil in corresponding sealing station.

Infiltration and not infiltration phenomenon are a kind of physical phenomenons occurred between solid and liquid, and Producing reason can be used Molecular force effect is explained, when liquid and solid contact, forms a liquid lamella in contact surface, this liquid lamella is called attached Layer.The molecule attraction by fluid molecule and molecular solids simultaneously inside adhesive layer.If molecular solids are to fluid molecule Gravitation be greater than fluid molecule between gravitation, then the molecular density of adhesive layer will be greater than liquid molecular density, at this time Interaction of molecules in adhesive layer shows as repulsion, and the trend of diffusion is presented in liquid level, forms infiltration phenomenon.If molecular solids Molecular density between fluid molecule is less than to the gravitation of fluid molecule, the interaction of molecules in adhesive layer shows as drawing at this time Power, liquid level are presented the trend shunk, just form not infiltration phenomenon.If liquid versus solid infiltrates, while solid interior exists Capillary, then liquid can penetrate into the inside of solid because of capillarity, if liquid versus solid does not infiltrate, because Capillarity, liquid then need certain external force, the gap of this power and capillary gap when entering the solid capillary Width is inversely proportional, directly proportional to the surface tension of fluid.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of clearance sealing structure and bearings, at least seal needs There is low abrasion between kinetoplast and quiet body.

It is an aspect of the invention to provide a kind of clearance sealing structures, comprising:

Fluid, the fluid form at least one clearance seal in the gap that kinetoplast and quiet body need the wall surface sealed;

With keep structure, the holding structure setting is on the wall surface of one or two of kinetoplast and quiet body, for that will flow Body is maintained at the movement of scheduled sealing position limitation fluid and forms Fluid Sealing ring between wall surface.

The kinetoplast and quiet body need to be provided with infiltration portion on the wall surface sealed as stream as a preferred technical solution, The holding structure of body, the infiltration portion are disposed therein one or two wall surface, the Facing material in the infiltration portion contacted with fluid with Fluid is infiltration relationship, and the wall surface and the fluid of kinetoplast and quiet body other than infiltration portion are not infiltrate relationship.

The infiltration portion is formed at the strip of wall surface or the infiltration band of banded structure as a preferred technical solution,.

The infiltration takes the dovetail groove for being provided at least one recess as a preferred technical solution, or C-shaped channel is formed Immersion slot.

The wall surface of kinetoplast or quiet body is inwardly formed at least one groove as a preferred technical solution, is marked with institute in groove The fluid stated, the prominent notch plane of fluid simultaneously contact to form the clearance seal with opposite wall surface, table in fluid and groove Face infiltration is not infiltrated with the wall surface of kinetoplast or quiet body other than groove.

The holding structure is formed at groove or protrusion on wall surface as a preferred technical solution, the groove or Protrusion forms the space for accommodating the fluid with the wall surface where it.

The fluid selects the liquid with larger surface tension, and the fluid is as a preferred technical solution, Mercury or water or liquid oil.It is the high scores such as glass or polytetrafluoroethylene (PTFE) with the nonwettable wall material of the mercury for mercury Sub- material.The advantages that mercury is big with surface tension, freezing point is low, is liquid under room temperature, and boiling point is high, mercury and polytetrafluoroethylene (PTFE) And most of materials do not infiltrate, and infiltrate with clean iron, nickel, platinum or iron-nickel alloy.Polytetrafluoroethylene (PTFE) it is low viscosity and Low-frictional force, can more sinking low mercury and kinetoplast frictional force.Compared to other materials, mercury and polytetrafluoroethylene (PTFE) Physicochemical property is more stable, is unlikely to deteriorate, without often replacement.

Above-mentioned clearance sealing structure abrasion is small, and structure is simple, manufacture is low with maintenance cost.

Based on the above sealing structure, another aspect of the present invention is to provide a kind of thrust bearing, which has low The characteristics of abrasion, axial bearing capacity be big, radial stabilization, good seal performance.The thrust bearing includes that the above-mentioned gap stated is close Seal structure, blowout patche and axle bed, the coaxial heart sleeve of the blowout patche is in axle bed, the outside wall surface of blowout patche and the relative wall of axle bed Between to be provided with described include fluid and the clearance sealing structure for keeping structure, form internal cavity, wall on the inside of blowout patche and axle bed Fluid between face forms Fluid Sealing ring, forms clearance cavity between more than two Fluid Sealing rings.

It uses and is contacted with infiltration band or immersion slot infiltration, the wall surface opposite with another as a preferred technical solution, Fluid formed the Fluid Sealing ring, fluid and infiltration band or the infiltration of immersion slot inner surface, in addition to infiltration band or immersion slot The wall surface of blowout patche and axle bed in addition does not infiltrate.

Infiltration band or immersion slot are provided with the axle bed of quiet body towards the one of kinetoplast as a preferred technical solution, Face, the blowout patche of kinetoplast are not provided with infiltration band or immersion slot.

Shaft-cup is equipped at the top of the axle bed as a preferred technical solution, external cavity, blowout patche top are formed in shaft-cup There is the thrust output shaft in outer cavity inside, Fluid Sealing ring separates external cavity and internal cavity.

As a preferred technical solution, in any one or more in the clearance cavity, internal cavity and external cavity Gas be air or inert gas.

The wall surface of the wall surface of the blowout patche and corresponding axle bed includes cambered surface as a preferred technical solution,.

It as a preferred technical solution, include the one or both sides in blowout patche axial direction and the thrust with the concentric connection of blowout patche Axis.

Bearing of the present invention has the effect of Fluid Sealing, in addition, making internal cavity by filling, taking out the method for air using air pump Air pressure is greater than the air pressure of blowout patche top, and the gas flowing that draught head generates can only be passed through by the gap between blowout patche and axle bed, air It can be kept apart by the clearance seal in gap, keep the draught head of internal cavity and external cavity constant, so that it is stable to form blowout patche Axial force.

The air pressure of clearance cavity and the pressure of Fluid Sealing ring make to generate uniform radial force constraint between blowout patche and axle bed Blowout patche is mobile, there is the beneficial effect of dynamic pressure or hydrostatic bearing, and number of gaps between radial constraint and Fluid Sealing ring or Width or pressure or blowout patche revolving speed are directly proportional.

The fluid is less than because of hair to the axial thrust of fluid sealing ring caused by the draught head of two adjacent clearance cavities The repulsion of spy, that is, sufficiently fine gap and sufficiently large surface tension of liquid can produce and keep out Fluid Sealing ring enough The axial compressive force that the draught head of two sides generates.

The present invention utilizes gas/liquid suspended pattern, realizes the effect of suspension thrust bearing, utilizes fluid gap of the invention Hermetic barrier circulation of the gas/liquid in gap has low abrasion, radial stabilization, axial force big, have wear it is small, it is at low cost The advantages of.Compared with magnetic suspension bearing, there is the characteristics of at low cost, small power consumption.In seal aspect, cost is lower, and structure is simpler It is single, and influenced without strong magnetic and eddy-current loss caused by magnet fluid sealing.Thrust bearing of the present invention and existing machine Tool bearing is compared, and noise is smaller, and abrasion is few, and maintenance cost is low.

As another aspect of the present invention, the present invention provides a kind of Fly wheel energy storage system, including above-mentioned thrust bearing, bearing Output end connect flywheel, flywheel top connection electric energy-turn kenetic energy converting device.

External cavity has the pressure difference of gas with internal cavity and is isolated by the sealing structure so that flywheel be suspended and not with Bearing block physical contact.The present invention realizes the function of magnetic thrust bearing, but unlike magnetic suspension bearing, the present apparatus It can be not necessarily to energy consumption, overcome due to vacuum inside magnetic thrust bearing, so power by rotating part without sealing output Loss and the high limitation of cost must be brought by the output of power/power inverter.

Detailed description of the invention

Attached drawing herein is used to provide to further explanation of the invention, constitutes part of this application, of the invention shows Meaning property embodiment and its explanation are used to explain the present invention, not constitute improper limitations of the present invention.

Fig. 1 is the structural schematic diagram of clearance sealing structure of the present invention.

Fig. 2 is the schematic diagram for the clearance sealing structure that there are infiltration band in two sides.

Fig. 3 is the schematic diagram that only there is the clearance sealing structure for infiltrating band in side.

Fig. 4 be only side have immersion slot clearance sealing structure schematic diagram.

Fig. 5 is the schematic diagram for the clearance sealing structure that there are immersion slot in two sides.

Fig. 6 is the schematic diagram of reeded clearance sealing structure.

Fig. 7 is the schematic diagram for having the clearance sealing structure of protrusion.

Fig. 8 is a kind of structural schematic diagram of thrust bearing of the present invention.

Fig. 9 is the structural schematic diagram of Fly wheel energy storage system of the present invention.

Figure 10 is the structural schematic diagram with arc-shaped gaps sealing thrust bearing.

Figure 11 is the structural schematic diagram for the Fly wheel energy storage system that the present invention has arc-shaped gaps sealing.

In figure, 1- kinetoplast, the quiet body of 2-, 3- groove, 4- blowout patche, 5- axle bed, 6- internal cavity, 7- Fluid Sealing ring, the gap 8- Cavity, 9- annular groove, 10- shaft-cup, 11- external cavity, 12- thrust output shaft, 13- thrust axis, 14- flywheel, 15- electric energy-rotation Energy conversion equipment, 16- air pump, 17- fluid pipeline, 18- liquid pump, 19- air pipeline, 20- air pump.21- infiltrates band, 22- Immersion slot, 23- protrusion.

Specific embodiment

In order to make those skilled in the art better understand the present invention, below in conjunction with reference attached drawing and in conjunction with the embodiments to this Further clear, complete explanation is made in invention.It should be noted that in the absence of conflict, embodiment in the application and Feature in embodiment can be combined with each other.

Clearance sealing structure as shown in Figure 1, comprising: fluid and holding structure, fluid needs close in kinetoplast 1 and quiet body 2 At least one clearance seal is formed in the gap of the wall surface of envelope;Keep one or two in kinetoplast 1 and quiet body 2 of structure setting On a wall surface, for keeping fluids in, scheduled sealing position limits the movement of fluid and formation fluid is close between wall surface Seal ring.

On this basis, the present invention further utilizes the infiltration or nonwettable relationship of fluid and wall surface material.It is i.e. described Kinetoplast 1 and the holding structure that needs to be provided with infiltration portion as fluid on the wall surface that seals of quiet body 2, infiltration portion setting is at it One or both of wall surface, the Facing material in the infiltration portion contacted with fluid and fluid are infiltration relationships, dynamic other than infiltration portion The wall surface of body 1 and quiet body 2 and the fluid are not infiltrate relationship.The fluid is mercury, water or liquid oil, and fluid is mercury When, the sealing surface material with fluid portion infiltration is glass, the material that polytetrafluoroethylene (PTFE) or other surfaces can be relatively low, infiltration Material can be iron, nickel, platinum or iron-nickel alloy, but not limited to this.The liquid oil can choose hydraulic oil, lubricating oil, This those skilled in the art can correspondingly select and the liquid oil infiltration or nonwettable wall surface material.

As preferred embodiment, as shown in Figure 2 and Figure 3, the infiltration portion is formed at the strip or band-like knot of wall surface The infiltration band 21 of structure.Fluid can be infiltrated with absorption and be contacted with the wall surface on opposite, and extend to form Fluid Sealing ring-type or band The sealing structure of shape, the resistance that the power and above-mentioned capillarity for adsorbing generation generate, so that each sealing structure is to sealing The draught head of two sides has certain inhibition, the sealing structure meeting that multiple holding mechanisms such as infiltration band and Fluid Sealing ring are constituted Enhance sealing effect.On this basis, in order to enhance the infiltration suction-operated for infiltrating band, as shown in Figure 4, Figure 5, further preferably Embodiment be that the infiltration takes the dovetail groove for being provided at least one recess or C-shaped channel and forms immersion slot 22.

In this embodiment, the infiltration relationship of the Fluid Sealing ring and wall surface has 2 kinds.As shown in figure 4, relationship (1) It is that can be one side to adsorb with the immersion slot, the relationship with the nonwettable contact of wall surface of the sealing surface of another side；Such as Fig. 5 institute Show, relationship (2) is that have immersion slot with two sealing surface wall surfaces, the relationship of Fluid Sealing ring and both wetting contacts；It is right In relationship (1), there is infiltration band on the sealing surface of side, fluid and infiltration band infiltration are adsorbed, other side be it is nonwettable, be Contact relation, it is possible to reduce frictional force is to increase revolving speed.All it is infiltration for relationship (2) and two side walls, can increases Adhesive ability of the Fluid Sealing ring to infiltration band, lift-off seal effect,

As another preferred embodiment, as shown in fig. 6, the wall surface of kinetoplast 1 or quiet body 2 is inwardly formed at least one groove 3, the fluid is marked in groove 3, the prominent notch plane of fluid simultaneously contacts to form the clearance seal with opposite wall surface, Fluid is not infiltrated with the infiltration of groove inner surface, with the wall surface of kinetoplast 1 or quiet body 2 other than groove.

As another preferred embodiment, as shown in Figure 6 and Figure 7, the holding structure is formed at recessed on wall surface Slot 3 or protrusion 23, the protrusion 23 and the wall surface where it form the space for accommodating the fluid.The groove 3 can be C-shaped channel or Dovetail groove.Multiple protrusions can form the C-channel of storage liquid, and the fluid is marked in C-channel, and the prominent notch of fluid is flat Face simultaneously forms the clearance seal with opposite sealing face contact, and opposite sealing surface can also have holding mechanism, fluid quilt C-channel is maintained between inside and opposite wall surface, and the fluid is not infiltrated with the sealing surface wall surface material other than notch. Fluid Sealing ring and wall relation of plane in the present embodiment similarly can be above-mentioned 2 kinds of relationships, the difference is that the present embodiment can To be relationship (3), i.e. fluid does not infiltrate with two side walls, and in this case, groove 3 and protrusion 23 can be used as fluid Storage device exists, and sealing effect also may be implemented, but assemble more complicated.

Thrust bearing shown in Fig. 8, including clearance sealing structure described in the above embodiments of gap and blowout patche 4 and axis Seat 5, clearance sealing structure described here can be using any one structures in previous embodiment.

Preferably, thrust bearing as shown in Figure 8, including blowout patche 4 and axle bed 5, the coaxial heart sleeve of blowout patche 4 in In axle bed 5, clearance seal is formed between the outside wall surface of blowout patche 4 and the relative wall of axle bed 5, on the inside of blowout patche 4 and axle bed 5 in formation Cavity 6, the clearance seal include and the infiltration band or C at least one sealing surface in the sealing surface of blowout patche 4 and axle bed 5 The Fluid Sealing ring 7 of the infiltration of shape immersion slot, the fluid formation of the sealing face contact opposite with another, fluid and infiltration band or leaching The infiltration of profit slot inner surface, in addition to infiltrate with or immersion slot other than blowout patche 4 and the sealing surface of axle bed 5 do not infiltrate.It is more than two Clearance cavity 8 is formed between Fluid Sealing ring 7.

Preferably, the infiltration band or immersion slot are provided with the axle bed 5 of quiet body towards the one side of kinetoplast, it is preferred that kinetoplast Blowout patche 4 be not provided with infiltration band or immersion slot.

Preferably, annular groove 9 is formed at least one sealing surface of axle bed 5 and blowout patche 4, is marked in annular groove 9 described Fluid, the prominent notch plane of fluid in annular groove 9 simultaneously formed coaxial with axle bed 5 and blowout patche 4 with opposite sealing face contact The Fluid Sealing ring 7 of the heart.Depth and direction to annular groove 9 do not limit.

Above-described fluid is preferably mercury, is also possible to water or liquid oil.When fluid is mercury, not with the fluid The sealing surface material of infiltration is polytetrafluoroethylene (PTFE), and the material of infiltration can be iron, nickel, platinum or iron-nickel alloy or other are nonmetallic Material, but not limited to this.

Preferably, the gas in any one or more in the clearance cavity 8, internal cavity 6 and external cavity 11 is Air or inert gas are filled with after inert gas the corrosion, oxidation that can reduce above-mentioned cavity surface material, friction.

As shown in figure 8, annular groove 9 is opened in 5 medial surface of axle bed, fluid and 9 inner-wall material of annular groove infiltrate, close with blowout patche 4 Cover does not infiltrate, and fluid is not infiltrated with the axle bed wall surface other than annular groove notch.Fluid Sealing ring 7 protrudes notch planar section quilt Capillarity repulsion caused by surface tension is strapped between adjacent clearance cavity 8.Gap between sealing surface is smaller, fluid The resistance that sealing ring 7 passes through gap is bigger, and surface tension of liquid coefficient is bigger, and the resistance that Fluid Sealing ring 7 passes through gap is bigger. There is a certain distance and parallel between adjacent Fluid Sealing ring 7, so that will not be because of the prominent notch of the fluid of Fluid Sealing ring 7 Part generates axial displacement just touching mutually because being only limited pressure.The fluid of Fluid Sealing ring 7 and the annular of carry fluid The inner surface of slot 9 is infiltration, and fluid is had the capillarity adsorption capacity generated by infiltration to be adsorbed on annular with 9 inner surface of annular groove In slot 9, fluid under capillary action, along the cyclic annular automatic absorbing of annular groove 9 and can spread whole annular grooves 9, until making Fluid keeps the opposite identical depth of notch in annular groove 9, and prominent notch is simultaneously close to the wall surface on opposite.Annular groove 9 can also To open the sealing surface in blowout patche, fluid and annular groove inner wall infiltrate, do not infiltrate with axle bed wall surface, do not soak with the wall surface outside notch Profit.

In addition, can also be infiltrated using fluid and 9 inner-wall material of annular groove, in Fig. 8 structure with 4 sealing surface of blowout patche Infiltration band infiltration.

As shown in figure 8, being equipped with shaft-cup 10 at the top of axle bed 5, it is formed with external cavity 11 in shaft-cup 10, is had outside at the top of blowout patche 4 Thrust output shaft 12 inside cavity 11, Fluid Sealing ring 7 separate external cavity 11 and internal cavity 6.External cavity is equal with internal cavity Air pump 16 can be connected, air is taken out by air pump 16, the pressure difference in two cavitys is adjusted, to form the axial force of blowout patche 4.

Thrust bearing shown in Fig. 8, there is the fluid pipeline 17 towards Bearing outer in annular groove 9, outside the fluid pipeline 17 End is connect with liquid pump 18, adjusts the liquid measure in annular groove.There is the air pipeline 19 towards Bearing outer in clearance cavity 8, it should 19 outer end of air pipeline is connect with air pump 20, the pressure in adjustable clearance cavity 8.

The sealing surface of thrust bearing shown in Fig. 10, the sealing surface of blowout patche 4 and corresponding axle bed 5 includes cambered surface, the bearing With aligning function.

As shown in figure 8, in the axial one or both sides of blowout patche 4 and thrust axis 13 with the concentric connection of blowout patche 4.The sky When the air pressure of any one cavity in chamber is standard atmospheric pressure, it may not need and hermetically thrust axis is output to other than bearing. Axial force delivery outlet can be opened at 10 top of shaft-cup and/or 5 bottom of axle bed, the axial direction is run through in 13 end of thrust axis Power delivery outlet, axial delivery outlet and thrust axis are clearance fit.When without axial direction delivery outlet, thrust axis 13 and shaft-cup and/or axis Seat touches thrust brake.When having axial delivery outlet, which can direct thrust output.

Shown in Fig. 9 is a kind of Fly wheel energy storage system.

In view of the particularity of flywheel, it may be assumed that quality is larger and axial compressive force is fixed, this example is taken to be exchanged for compared with atm difference Lesser seal diameter.Since the setting speed of flywheel is higher, there is sensitive requirement to windage loss, so this Example uses flywheel 14 and electric energy-to turn 15 place external cavity 11 of kenetic energy converting device as vacuum.

Fly wheel energy storage system shown in Fig. 9, including thrust bearing provided by the present invention, before which can use State any one structure in embodiment.Preferably, which includes blowout patche 4 and axle bed 5, the coaxial heart of blowout patche 4 Sleeve is in axle bed 5, forming clearance seal between the outside wall surface of blowout patche 4 and the relative wall of axle bed 5,5 inside of blowout patche 4 and axle bed Form internal cavity 6, the clearance seal be by the sealing surface of blowout patche 4 and axle bed 5 the infiltration of any one sealing surface, with it is another The Fluid Sealing ring 7 that the nonwettable fluid of one opposite sealing surface is formed forms gap between more than two Fluid Sealing rings 7 Cavity 8；It is equipped with shaft-cup 10 at the top of axle bed 5, is formed with external cavity 11 in shaft-cup 10, has inside external cavity 11 at the top of blowout patche 4 Thrust output shaft 12, Fluid Sealing ring 7 separate external cavity 11 and internal cavity 6；12 top of thrust output shaft connects flywheel 14, flies It takes turns 14 tops connection electric energy-and turns kenetic energy converting device 15.The bottom of Fly wheel energy storage system blowout patche 4 and axle bed 5 shown in Figure 11 is Arc.

Due to the particularity of flywheel, i.e., for the mass concentration of flywheel in edge, momentum is maximum, therefore this example is used than flying The smaller blowout patche 4 of wheel diameter and axle bed 5, to reduce the linear velocity of sealing surface.

Can also will design camber (as shown in figure 11) on the inside of above-mentioned blowout patche 4 and corresponding axle bed 5 so that between it is parallel Gap wall surface is cambered surface, and is the concentric on axle center, then this flywheel energy storage system can bear axle bed left-right and front-back Inclination, realizes application, such as automobile on the mobile apparatus.

Fluid mercury is adjusted by the pressure of liquid pump 18, injects corresponding annular groove 9, water by connecting fluid pipeline 17 Silver is evenly distributed and under input pressure and capillary force full of in annular groove 9.

The air in external cavity 11 is extracted out by air pump 16, during air pressure reduces, the gas of original interstice cavity 8 Fluid Sealing ring 7 can be gradually passed through, until external cavity 11 automatically forms the ladder pressure between adjacent segment sky 8 when being vacuum Difference, and form sealing.This step can also be by corresponding air pump 16 while taking out external cavity 11, accordingly in real time between adjustment Draught head in gap cavity 8.

In order to facilitate the power output of rotary flywheel 14, by air pump 16 and make 1 atmospheric pressure of internal cavity pressure, so that The rotational energy of flywheel 14 is directly exported when thrust axis 13 exports bore portion by reserving axial force without secondary seal.To Also achieve direct driving force input, infinitely raising charging rate.The kinetic energy of flywheel 14 can also be made directly to be converted by power-electric energy Machine 15 exports.When axial force delivery outlet on thrust axis 13 and shaft-cup 10 is closing seam, thrust is touched with rotating part realization.

The scope of protection of present invention is not limited to the above specific embodiment, to those skilled in the art, this Invention can there are many deformation and change, it is all design of the invention within principle it is made it is any modification, improve and be equal Replacement should be all included within protection scope of the present invention.

Claims (7)

1. a kind of thrust bearing, it is characterised in that: including clearance sealing structure, blowout patche (4) and axle bed (5),

The clearance sealing structure includes fluid and keeps structure, and fluid is in kinetoplast (1) He Jingti (2) wall surface for needing to seal At least one clearance seal is formed in gap;Keep structure setting in the wall of one or two of kinetoplast (1) He Jingti (2) On face, the movement for keeping fluids in scheduled sealing position limitation fluid and the formation Fluid Sealing ring between wall surface； The holding structure that kinetoplast (1) He Jingti (2) needs to be provided with infiltration portion as fluid on the wall surface sealed, the infiltration portion It is disposed therein one or two wall surface, the Facing material and fluid in the infiltration portion contacted with fluid are infiltration relationship, infiltration portion The wall surface and the fluid of kinetoplast (1) He Jingti (2) in addition is not infiltrate relationship, the coaxial heart sleeve of the blowout patche (4) In the axle bed (5), it is provided between the outside wall surface of blowout patche (4) and the relative wall of axle bed (5) described including fluid and holding The clearance sealing structure of structure, blowout patche (4) and axle bed (5) inside form internal cavity (6), and it is close that the fluid between wall surface forms fluid Seal ring (7) forms clearance cavity (8) between more than two Fluid Sealing rings (7)；

Shaft-cup (10) are equipped at the top of the axle bed (5), are formed with external cavity (11) in shaft-cup (10), are had at the top of blowout patche (4) The internal thrust output shaft (12) of external cavity (11), Fluid Sealing ring (7) separate external cavity (11) and internal cavity (6)；Kinetoplast Including blowout patche, quiet body includes axle bed, and external cavity and internal cavity are all connected with air pump, takes out air by air pump, adjusts external cavity and interior Pressure difference in cavity；

The first of the holding structure is:

The groove (3) or raised (23) being formed on wall surface, the groove (3) or raised (23) and the wall surface where it are formed and are accommodated The space of the fluid；

Second of the holding structure is:

The infiltration portion is formed at the strip of wall surface or the infiltration band (21) of banded structure.

2. thrust bearing according to claim 1, it is characterised in that: the wall surface of kinetoplast (1) or quiet body (2) be inwardly formed to A few groove (3), groove (3) is interior to be marked with the fluid, and the prominent notch plane of fluid simultaneously contacts to be formed with opposite wall surface The wall surface of the clearance seal, fluid and the infiltration of groove inner surface and kinetoplast (1) or quiet body (2) other than groove is not Infiltration.

3. thrust bearing according to claim 1, it is characterised in that: the clearance cavity (8), internal cavity (6) and outer Gas in any one or more in cavity (11) is air or inert gas.

4. thrust bearing according to claim 1, it is characterised in that: the wall surface and corresponding axle bed of the blowout patche (4) (5) wall surface includes cambered surface.

5. thrust bearing according to claim 1, it is characterised in that: thrust output shaft (13) and blowout patche (4) concentric company It connects, in the one or both sides of blowout patche (4) axial direction.

6. thrust bearing according to claim 1, it is characterised in that: the fluid is mercury, water or liquid oil.

7. a kind of Fly wheel energy storage system, it is characterised in that: including thrust bearing as claimed in any one of claims 1 to 6, bearing Output end connect flywheel (14), flywheel (14) top connection electric energy-turn kenetic energy converting device (15).