CN101240815B - Bearing device - Google Patents
Bearing device Download PDFInfo
- Publication number
- CN101240815B CN101240815B CN2007103059100A CN200710305910A CN101240815B CN 101240815 B CN101240815 B CN 101240815B CN 2007103059100 A CN2007103059100 A CN 2007103059100A CN 200710305910 A CN200710305910 A CN 200710305910A CN 101240815 B CN101240815 B CN 101240815B
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- Prior art keywords
- pump
- mentioned
- bearing means
- oiling agent
- assembly body
- Prior art date
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- 238000005096 rolling process Methods 0.000 claims abstract description 57
- 239000000314 lubricant Substances 0.000 claims abstract description 53
- 239000008041 oiling agent Substances 0.000 claims description 72
- 239000000446 fuel Substances 0.000 claims description 65
- 230000004888 barrier function Effects 0.000 claims description 15
- 230000001050 lubricating effect Effects 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 3
- 239000002828 fuel tank Substances 0.000 description 30
- 239000003921 oil Substances 0.000 description 22
- 239000010687 lubricating oil Substances 0.000 description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000035622 drinking Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
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
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/02—Flow, e.g. volume flow or mass flow
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
A bearing device mountable on a smaller bearing and allowing to be automatically lubricated for a long period, comprising an inner ring 2 and an outer ring 1 rotated relative to each other, cages and rolling elements 3 held by the cages which are disposed in an annular space between the inner and outer rings, a seal ring 5 disposed on both sides of the inner and outer rings, and a unit body 7 formed of a battery 6, a tank 8 for storing lubricant, and a pump 10 sucking and discharging the lubricant from the tank 8 which is disposed between the outer ring 1 and the inner ring 2 detachably from the seal ring 5, wherein the lubricant is discharged from the pump 10 into the annular space in which the rolling elements 3 are disposed and the discharged amount of the lubricant from the pump is controlled by a sensor and a control circuit, and the unit body 7 is formed detachable, whereby a lubrication unit installed in the bearing can be made compact and slim.
Description
Patent application of the present invention is that application number is 03824258.3, the applying date is on September 16th, 2003, denomination of invention is divided an application for the application for a patent for invention of " bearing means ".
Technical field
The present invention relates to bearing means, particularly relate to oiling agent is held that the drive portion that stays case, pump and this pump carries out modularization and the bearing means that is provided with.
Background technique
In the past, proposed to be used for supplying with the fuel feeding assembly (lubricating fitting) (opening the 2002-130593 communique) of the lubricant oil of trace with reference to the spy to rolling bearing.This fuel feeding assembly is provided with fuel tank from the position of leaving the position that is provided with of rolling bearing, is provided with nozzle with the form between the inside and outside circle of rolling bearing simultaneously, and connects fuel tank and nozzle through the fuel feeding road.
Above-mentioned fuel feeding assembly in the past must be arranged with the rolling bearing branch, therefore is provided with cumbersome.For this, proposed to be provided with the device that is used for to the lubricant pump of the inside of rolling bearing removal of lubricant.(opening flat 3-113119 communique) with reference to the spy
In addition, as bearing means from trend rolling bearing supply of lubricant, the bearing means on the known main shaft that is useful on work mechanism.As such device, for example shown in figure 10, constitute by lubricating oil storage chamber 23, barrier film 24, nozzle 25, piezoelectric element 26, said lubricating oil storage chamber 23 is used for the temporary transient lubricant oil of supplying with to rolling bearing 20 from lubricating oil tank 21 through pump 22 that stores; Said barrier film 24 is arranged in this lubricating oil storage chamber 23; Said nozzle 25 is formed on the part of removing this barrier film 24; Said piezoelectric element 26 is used for applying to barrier film 24 pressure of vibration and change lubricating oil storage chamber 23.Can be through this structure with reference to the spy through rolling element 27, inner ring, the plane of trajectory orbital 20a of outer ring, the 20b supplying lubricating oil (opening the 2002-213687 communique) of nozzle 25 to rolling bearing 20.
Perhaps, same, use bearing means as work mechanism, the device of more ground supply of lubricant has been proposed when bearing temperature rises.This bearing means; Shown in the 11st figure (A); It is adjacent and embed the grommet 34 in this running shaft 31 to be provided with and to embed bearing inner race 32 in the running shaft 31; Simultaneously; Have the oiling agent feed mechanism 30 that is used for to the space Q supply of lubricant G of outer ring 33 and inner ring 32, and have the lubricant chamber 36 that is arranged in the grommet 34, supply with oiling agent stream 35 from groove 38 to above-mentioned space Q supply of lubricant G, oiling agent tap hole 37 and oiling agent from this lubricant chamber 36, in above-mentioned lubricant chamber 36, be provided with can be connected with atmosphere one side, disconnected lubricant chamber internal pressure regulating mechanism 39.
This lubricant chamber internal pressure adjustment structure 39 is made up of the stopper 41 of atmosphere introduction hole 42 and marmem system, and said atmosphere introduction hole 42 is connected with lubricant chamber 36 via atmosphere lead-in groove 40, is used to make this lubricant chamber 36 to be in atmospheric pressure state; The stopper 41 of said marmem system clogs atmosphere introduction hole 42, seal lubrication agent chamber 36 usually, when temperature rises, deforms, with atmosphere introduction hole 42 be connected with atmosphere one side (opening the 2002-250352 communique with reference to the spy).In addition, the 11st figure (B) is the enlarged view along the M-M line of the 11st figure (A).
Open among the flat disclosed embodiment in the past of 3-113119 communique above-mentioned spy; Because lubricant pump is a vane pump; And boundary dimension is bigger, therefore causes the maximization of rolling bearing, in addition; Owing to need guarantee the setting area etc. of pump with respect to the outer ring of rolling bearing, therefore may cause cost to raise.And, be used to preserve the fuel tank of lubricant oil, also must be arranged at the outside of rolling bearing.
In addition, be used for the bearing means of the previous proposition of supply of lubricant, owing to externally be provided with feeding lubricating device, in inner ring one side, except inner ring also is provided with grommet, therefore whole space becomes big, is difficult to carry out miniaturization.In order to solve such problem; The application's claimant; Proposed a kind of rolling bearing system, this rolling bearing system is in retaining ring one side of rolling bearing, to the plane of trajectory orbital supply of lubricant (with reference to patent application 2002-267838 communique) of rolling element or retaining ring, rotating ring.
In this rolling bearing system; Retaining ring one side at rolling bearing; Be provided with as required fuel feeding assembly to the plane of trajectory orbital supplying lubricating oil of rolling element or retaining ring, rotating ring; This fuel feeding assembly has fuel tank, suction and the micropump of discharging the lubricant oil in the fuel tank that is used to accumulate lubricant oil, the drive portion (generator) that is used to drive micropump.But, in this case, have owing to carry generator with magnet, wire loop, cause space constraints bigger, be difficult to be applicable to the problem of more small-sized bearing with current state.In addition, in order to be applicable to more small-sized bearing, to be necessary to provide a kind of and can to realize the further miniaturization of assembly and can adjust lubricant oil delivery volume, the bearing means of auto-supply for a long time.
Summary of the invention
The present invention can carry out miniaturization, tinyization to the problems referred to above and proposing with the fuel feeding assembly that is installed on the bearing to provide a kind of, makes it can be equipped on the more small-sized bearing and the bearing means of auto-supply for a long time.
Bearing means of the present invention has a plurality of track components of relative movement, it is characterized in that,
Between the opposed faces of these track components, be provided with the fuel feeding assembly body of supply of lubricant as required, this fuel feeding assembly body has the pump that is used to discharge oiling agent, the drive portion that is used to drive this pump.
Like this, because bearing means is provided with the fuel feeding assembly, therefore, can carries out the setting of fuel feeding assembly simply, and can carry out the miniaturization of bearing means.In addition, fuel feeding assembly body owing to be as required to the device of bearing means supply of lubricant, therefore, at supply of lubricant lavishly not when not required, helps the long term stabilization of rolling characteristic.
In addition, the invention is characterized in that the drive portion of said pump for having the generator with the corresponding generating capacity of rotating speed of bearing, is controlled the oiling agent discharge capacity of said pump with the generating capacity of this generator accordingly.
But above-mentioned drive portion if having the generator with the corresponding generating capacity of rotating speed of bearing, then can be controlled the oiling agent discharge capacity of said pump with the generating capacity of this generator accordingly.So, through with the rotating speed of the bearing means oiling agent discharge capacity of control pump accordingly, can supply with proper amount of lubricating agent, eliminate the mistake and deficiency of oiling agent.
In addition, the invention is characterized in that the drive portion of said pump is a battery.
In addition, the invention is characterized in that above-mentioned battery is a fuel cell.
In addition, the invention is characterized in above-mentioned fuel feeding assembly body, to have and to take out the storage facilities of fuel cell with hydrogen.
In said apparatus, fuel cell can drive functive (pump) for a long time owing to comparing with unidimensional disposable battery, chargeable cell, therefore can carry out for a long time running automatically.
In addition, the invention is characterized in above-mentioned fuel feeding assembly body, to have oiling agent and hold and stay case.
In addition, the invention is characterized in that above-mentioned a plurality of track components and fuel feeding assembly body are ring bodies and are configured to coaxial shape.
Thus, because the assembly body is set to the ring-type with the track component arranged coaxial, therefore can the bearing integral that assembly is installed be made the shape identical with the track component of ring-type.Thus, the equipment degree of freedom in design is improved in the space identical with common bearing means of can packing into.
In addition, the invention is characterized in that above-mentioned a plurality of track components are inner ring and outer ring, said bearing means is for disposing the rolling bearing of a plurality of rolling elements between inner ring and outer ring.
Then, the invention is characterized in that above-mentioned fuel feeding assembly body has the sensor of the lubricating status between the opposed faces that is used to detect a plurality of track components, said pump is carried out function control according to the detection output of this sensor.
In addition, the invention is characterized in that above-mentioned fuel feeding assembly body is installed near the shoulder with the circumferential surface of the opposed fixed side track component of rotary side track component removably.
In addition; The invention is characterized in; Bearing means comprises the outer ring and the inner ring that have plane of trajectory orbital respectively, is disposed at the rolling element between outer ring and the inner ring; And by modularization, this fuel feeding assembly body can be installed near the shoulder of inner peripheral surface of outer ring or near the shoulder of the outer circumferential face of inner ring pump removably as fuel feeding assembly body at least.
In addition, the invention is characterized in that said pump is to have piezoelectric element and the diaphragm pump of the barrier film that moves back and forth through this piezoelectric element.
In addition, the invention is characterized in that said pump replaces above-mentioned piezoelectric element and has miniature motor.
In addition, the invention is characterized in that above-mentioned oiling agent holds and stays case, be installed on removably on the outer side surface of seal ring that drive portion and pump are arranged on the inner side surface of seal ring.
According to such structure, when oiling agent holds the lubricant starvation of staying case, can pull down seal ring ground and hold to oiling agent and stay case supply oiling agent, and fuel tank is replaced by new device.
In addition, the invention is characterized in that the sensor is a temperature transducer, simultaneously, this temperature transducer is installed on around the orbit portion of track component, according to the detection output of this temperature transducer, through the oiling agent discharge capacity of control gear control pump.
In addition; The sensor; Can be the suspended particulate detecting sensor of smog, dust etc. perhaps for the temperature transducer or the pressure transducer of the annulus between track component; Perhaps for the vibration transducer that is used to detect the vibration that causes owing to insufficient lubrication, be used to detect sensor of the AE (AcousticEmission) that the damage that is accompanied by the bearing structure parts that cause owing to insufficient lubrication produces etc.; Can try to achieve the output value (the Determination of distribution value of temperature or pressure or particle etc.) of these sensors and the relation of lubricating status in advance; And, predict the outcome with this and to control said pump accordingly according to the measured load of sensor prediction lubricating status.
Owing to through this device, can detect the inner lubricating status of bearing, therefore, suitably be lubricated control while can confirm the situation of oiling agent.
Description of drawings
The 1st figure is the sectional drawing of upper half part of the bearing means of expression the 1st mode of execution of the present invention.
The 2nd figure is the side view of the bearing means of the 1st figure.
The 3rd figure is the sectional drawing of linkage structure of fuel tank and micropump of the bearing means of expression the 1st mode of execution of the present invention.
The 4th figure is the figure of structure of the bearing means of expression the 2nd mode of execution of the present invention, for respect to axle direction from the observed sectional drawing of right angle orientation.
The 5th figure is the figure of a part of structure of the bearing means of expression the 2nd mode of execution of the present invention, is the sectional drawing along the A-A line of Fig. 4.
The 6th figure is the figure of a part of structure of the bearing means of expression the 2nd mode of execution of the present invention, is the sectional drawing along the B-B line of Fig. 4.
The 7th figure is the figure of a part of structure of the bearing means of expression the 2nd mode of execution of the present invention, is the sectional drawing along the C-C line of Fig. 4.
The 8th figure is the figure of structure of the bearing means of expression the 2nd mode of execution of the present invention; The 8th (A) figure is that battery and pump, the lubriation material of the assembly body of expression formation bearing means of the present invention holds the plan view that stays a case part partly, and the 8th (B) figure is its plan view.
The 9th figure is the figure of mechanism of the 3rd mode of execution of expression bearing means of the present invention, for respect to axle direction from the observed sectional drawing of right angle orientation.
The 10th figure is that expression has the figure that in the past oiling agent holds the structure of the bearing means that stays case and have feeding lubricating device.
The 11st (A) figure is that expression has lubricant chamber in the past, and has the figure of the structure of the bearing means of the mechanism of supply of lubricant from then on, and the 11st (B) figure is the enlarged view along the M-M line of the 11st (A) figure.
Embodiment
Below, specific embodiments of the invention describes.The 1st figure is to the 3rd figure expression the 1st mode of execution of the present invention.In the drawings, 1 is inner ring, and 2 is the outer ring, and 3 is the ball as a plurality of rolling elements, and 4 is retainer, and 5,5 is seal ring.
The bearing means of illustrated example; In rolling bearing; Since be known as the deep channel type ball bearing, therefore, between being arranged at as the rail slot 1a on the inside and outside circle 1,2 of a plurality of track components, 2a; Clamp a plurality of balls 3 as a plurality of rolling elements, a plurality of balls 3 are held through the retainer ring 4 that is known as the waveform retainer.At this, with outer ring 2 as retaining ring, with inner ring 1 as rotating ring.Seal ring 5,5 is installed on two shoulders as the inner peripheral surface of the outer ring 2 of retaining ring, contacts with outer circumferential face two shoulders as the inner ring 1 of rotating ring, and seals the axial openings at two ends of the opposed annulus of inside and outside circle 1,2.
In this mode of execution, it is characterized in that in above-mentioned opposed annulus, assembly body 7 (fuel feeding assembly body 7) being arranged in the installed inside of a seal ring 5.This fuel feeding assembly body 7; Have fuel tank 8, generator 9 and have by the pump of drive portion (micropump) 10; The rotating tee that is accompanied by inner ring 1 is crossed generator 9 and is generated electricity; Through driven pump 10, the lubricant oil in the fuel tank 8 are supplied to gradually micro-ly between the opposed faces of Internal and external cycle (near the rail slot 2a of outer ring 2 and ball 3).
As pump 10, be suitable for diaphragm pump etc., said diaphragm pump makes as by barrier film 12 to-and-fro motion of drive portion through for example piezoelectric element 11, produces the lubricant oil that in pump chamber 10c, sucks in the fuel tank 8 with this, and it is discharged the pumping action of discharging with nozzle 10a from oil.The energising of above-mentioned piezoelectric element 11 is carried out through generator 9.Replace this piezoelectric element 11, can use miniature motor etc.The nozzle 10a of this pump 10 is near the end of the rail slot 2a of outer ring 2 and ball 3.
In addition, above-mentioned fuel tank 8 and micropump 10, as shown in Figure 3, suck with nozzle 10b via the oil supply on the chimeric side of going into to be arranged at fuel tank 8 of rubber hose 14 with among the 8a of hole through the oil on the side that will be arranged at micropump 10, be communicated with binding.
So, the fuel tank 8 of fuel feeding assembly body 7 is installed on the seal ring 5, and seal ring 5 is pulled down, and then can carry out the dismounting of fuel tank 8 simply.Therefore, can carry out simply fuel tank 8 setting, take off, simultaneously, can carry out the whole miniaturization of rolling bearing system.In addition, when the lubricant oil deficiency of fuel tank 8, can fuel tank 8 and seal ring 5 together be taken off, supply lubricant oil in fuel tank 8 perhaps is replaced by new device with fuel tank 8.
Above-mentioned generator 9 has and the corresponding generating capacity of the rotating speed of rolling bearing, controls the lubricant oil discharge capacity of micropump 10 accordingly with the generating capacity of this generator 9.For example, in the lower zone of the rotating speed of inner ring 1, directly the lubricant oil with denier is ejected into ball 3, and in the higher zone of rotating speed, amount lubricant oil corresponding with it is ejected near the rail slot 2a of ball 3, outer ring 2.
So, in above-mentioned rolling bearing system since can unlikely mistake with respect to the rotary area of the ball 3 of rolling bearing with for a long time insufficiently, supplying lubricating oil constantly, therefore, help the long term stabilization of rolling characteristic and the raising in life-span.
In addition, the present invention is not limited in above-mentioned mode of execution, can consider various application, distortion.In the above-described embodiment, though not shown, can fuel tank 8 can be set with respect to the outer side surface of seal ring 5 with dismantling, and generator 9 and pump 10 are arranged on the inner side surface of seal ring 5.In this case, when the lubricant oil in fuel tank 8 is not enough, can take off seal ring 5 ground,, fuel tank 8 is replaced by new device to fuel tank 8 supplying lubricating oils.
In addition, in the above-described embodiment, for example, can with the Lubrication of Rolling Contact Bearing state lubricant oil discharge capacity of control pump 10 accordingly.Above-mentioned lubricating status for example can be confirmed according to the temperature of rolling bearing.So, the temperature transducer of thermocouple for example etc. can be installed around the orbit portion of rolling bearing, and can be according to the detection output of this temperature transducer, through the lubricant oil discharge capacity of control circuit control micropump 10.Above-mentioned control circuit can be installed on the rolling bearing, in addition, also can be arranged at above support of being used for support rolling bearing etc.
Though the bearing type of above-mentioned rolling bearing system is the deep channel type ball bearing, the present invention also goes for the bearing of other various form known.In addition, the form of retainer ring 4 can be used cutting retainer, plastic retainer etc. except the waveform retainer.
Next, Fig. 4 to Fig. 8 representes the 2nd mode of execution of the present invention.
Fig. 4 is the figure of structure of the 2nd mode of execution of expression bearing means of the present invention, for respect to axle direction from the observed sectional drawing of right angle orientation (will narrate in the back, be the figure that observes from the X-X line direction of Fig. 5).The 5th figure is the sectional drawing along the A-A line of Fig. 4, and Fig. 6 is the sectional drawing along the B-B line of Fig. 4, and Fig. 7 is the sectional drawing along the C-C line of Fig. 4.
This bearing means, is used for the seal ring 5,5 of sealing ring space P and is disposed at the assembly body 7 of any one side of seal ring 5,5 rolling element (ball) 3, the retainer 4 that is used for keeping these rolling elements 3 that is provided with at certain intervals on the circumferencial direction by the annulus P as the inner ring 1 of ring-shaped member (track component) and outer ring 2 with outside these, between the opposed faces of inner ring.
Said modules body 7 is held by battery 6, oiling agent and to stay case 8 and through above-mentioned battery-operated, the functive of carrying out work, for example pump (micropump) 10 constitutes, and these parts be circular-arc entirely, become loop component body 7 after these parts combinations.In this case; Pump 10 is circular-arc; From with the fuel tank 8 of the roughly the same circular shape of this arc diameter suck oiling agent, (the plane of trajectory orbital 1a of the rolling element in the annulus Q (ball) 3, inner ring 1, the plane of trajectory orbital 2a direction of outer ring 2) discharged oiling agent between the opposed faces of track component then.In addition, battery 6 is the circular shape with the roughly the same diameter of above-mentioned circular arc.
So, assembly body 7 because can dismounting, therefore, under the situation that the battery 6 that constitutes this assembly body 7, pump 10 etc. break down, can be changed, and perhaps battery 6 is charged, and holds when staying case 8 vacant at oiling agent, can the supply oiling agent.
In addition; This assembly body 7; Owing to be the ring bodies with the roughly the same diameter of rolling bearing of ring-type, the shape of integral body that therefore bearing means of this assembly body is installed also is the ring-type identical with rolling bearing, thus; Even under the situation of assemblings such as the main shaft of work mechanism, also can be with the method identical to assemble at interval with in the past bearing.As above-mentioned battery 6,, can be disposable battery if can change.In addition, also can for as after the fuel cell stated.
The 8th figure; For being illustrated in the bearing means of the present invention as said structure; Above-mentioned battery 6 as driving source, is used said pump 10 (micropump 10) that oiling agent is held from oiling agent and stays case 8 to supply to the object lesson of plane of trajectory orbital 2a direction of plane of trajectory orbital 1a, the outer ring 2 of rolling element (ball) 3 between the opposed faces of track component, inner ring 1.
For micropump 10, diaphragm pump structure is simple, and is relatively good.That is, in pump chamber 10c, be provided with barrier film 12 and discharge with nozzle 10a and oiling agent inlet nozzle 10b, on this barrier film 12, for example piezoelectric element 11 is installed with oiling agent.In addition, pump chamber 10c and oiling agent hold and stay case 8, through above-mentioned oiling agent inlet nozzle 10b, link to be communicated with inner form, around this oil inlet nozzle 10b, seal through rubber hose 14.In addition, in this oil inlet nozzle 10b, be provided with safety check 15, not make when the driving of barrier film 12 oiling agent generation adverse current.
In the bearing means of said structure, drive micropumps 10 through battery 6, with supply of lubricant such as this rolling element 3 or plane of trajectory orbital 1a in the annulus Q that is arranged between inner ring 1 and the outer ring 2,2a.That is, utilize piezoelectric element 11 to make barrier film 12 fluctuations, discharge oiling agent from nozzle 10a with this.In this case, can pass through the bearing state of sensor inside temperature, bearing rotational speed etc., between battery 6 and micropump 10, be provided with control circuit in addition, can adjust the oiling agent delivery volume accordingly with this state.
In addition, said pump 10 is for being used for the pump of the annulus Q supply of lubricant between inner ring 1 and outer ring 2; Though the diaphragm pump with simple in structure is illustrated; But, in addition, also can consider various pumps such as jet pump, vane pump, volute pump, piezoelectric pump.In this case, pump, fuel tank, battery are the circular shape of roughly the same diameter, it is made up just form a loop component body.
In addition, replace said pump 10, also can pack into can be with the various devices of battery 6 drivings.For example, supply with (micropump) pump 10 mistake of it is also conceivable that the alarm that is used for the inner subminiature cooling fan of cooling bearing, is used to notify temperature anomaly, keeping watch on the inner oiling agent of bearing and the surveillance device of not enough state etc. except above-mentioned oiling agent.
Then, bearing means of the present invention can have sensor, and this sensor is used to detect the lubricating status of the annulus Q between the plane of trajectory orbital of outer ring 1 and inner ring 2.As sensor, the thermocouple of the temperature in the annulus Q of the temperature that is used to detect plane of trajectory orbital etc. is installed around the orbit portion, judge the mistake and deficiency of oiling agent according to the height of temperature.In addition, can the detection output of this thermocouple be reacted on the control circuit, control, increase or reduce the oiling agent discharge capacity of pump with this.Control circuit can be arranged at outer circumferential face or the inner peripheral surface of outer ring or the appropriate location of seal ring 5 of inner ring.
In addition; As sensor in this case; Except being used for the thermocouple of monitor temperature; It is also conceivable that pressure transducer, be used to detect the optical sensor of the suspended particulate of smog, dust etc.; Perhaps for the vibration transducer that is used to detect the vibration that causes owing to insufficient lubrication, be used to detect sensor of the AE (Acoustic Emission) that the damage that is accompanied by the bearing structure parts that cause owing to insufficient lubrication produces etc., can try to achieve the output value of these sensors and the relation of lubricating status in advance, then control pump as required.
As above-mentioned; Bearing means of the present invention; For in bearing; At least battery 6 and pump 10, oiling agent are held the assembly body 7 that stays case 8 etc., can be installed near the shoulder of inner peripheral surface of outer circumferential face or outer ring 2 of inner ring 1, the device on the side of seal ring 5 with dismantling, said bearing has as the inner ring 1 of ring-shaped member and outer ring 2 and rolling element 3, retainer 4, seal ring 5.Promptly; This assembly body 7; Under the situation of inner ring 1 rotation, be installed on end one side of the inner peripheral surface of outer ring 2 removably, under the situation of outer ring 2 rotations; Be installed on end one side of inner ring 1 outer circumferential face removably, perhaps be installed on removably on the inner circumference side or excircle side of seal ring 5.
In addition, difference according to circumstances can be held battery 6, oiling agent and stay case 8 to be installed on the outer lateral side of seal ring 5, can pump 10 be installed on the inner side surface of seal ring 5.So; As if being held, battery 6, oiling agent stay case 8 to be installed on the outer lateral side of seal ring 5; Then owing to when the supply oiling agent, needn't take off seal ring 5, so the charging of storage battery, the replacing operation of disposable battery and the supply operation of oiling agent will become very easy.
Fig. 9 representes the 3rd mode of execution of bearing means of the present invention, the structure of the bearing means when expression is used as a kind of fuel cell of above-mentioned battery 6.In this case, assembly body 7 is provided with the for example methanol tank 13 that is used for supplying with to this fuel cell 6 hydrogen.
In addition; In above-mentioned 3 mode of executions, bearing means of the present invention is made up of inner ring 1 and outer ring 2, the rolling element (ball) 3 that remains on the retainer 4; In a word; Though be the deep channel type bearing, the present invention is not limited thereto, also go for all types of bearings such as angular contact bearing, roller bearing or tapered roller bearing.
Though as the fuel source of the fuel cell 6 of said modules body 7, use the methyl alcohol in the case 13 of packing into,, also can from the modification of rock gas, gasoline, extract hydrogen except methyl alcohol.In this case, use this fuel tank.In addition, can also directly carry fuel tank.
In addition, in above-mentioned example, though rolling bearing is illustrated, track component also goes for other bearing means such as straight dynamic bearing, ball screw, sliding bearing of straight line shape.The state of assembly body in this case can suitably determine with the shape star of the track component of bearing means accordingly.
Like above detailed description, according to the present invention, because a kind of integrated bearing that is equipped with fuel cell can be provided; This bearing, owing to be provided with the fuel feeding assembly above that, therefore; Can carry out the setting of fuel feeding assembly simply, simultaneously, can extremely work for a long time easily.
In addition, can hold with battery, through this battery-driven functive (pump), lubriation material and stay case etc. to carry out modularization, and be installed on the bearing removably integratedly.
Particularly; Fuel cell under as the situation of bearing lubricant supply with the driving source of micropump, is being fastened with the pass of required electric energy; Can change, use with charging owing to comparing with unidimensional above-mentioned disposable battery, storage battery; Therefore driving time is longer, and auto-supply is suitable for " no upkeep operation " thus for a long time.Therefore, also be applicable to and hope reduce housekeeping operation, supply with the bearing for spindle of the working equipment of micro lubricating agent for a long time.
In addition, this assembly body can carry out miniaturization, tinyization with himself, can be equipped on the more small-sized bearing thus, and a kind of bearing means of auto-supply for a long time can be provided.
Fuel feeding assembly body of the present invention, owing to be as required to the device of bearing means supplying lubricating oil, therefore, when not required, supplying lubricating oil lavishly not helps the long term stabilization of rolling characteristic.
Claims (39)
1. bearing means has a plurality of track components of relative movement, it is characterized in that,
Be provided with the fuel feeding assembly body of supply of lubricant between the opposed faces of these track components as required; This fuel feeding assembly body has oiling agent and holds to discharge the drive portion that stays case, pump, this pump and the oiling agent that links to each other with this pump and use nozzle, and the discharge of above-mentioned oiling agent is arranged between the opposed faces of above-mentioned track component with the opening end of nozzle.
2. bearing means as claimed in claim 1 is characterized in that, the drive portion of said pump is the generator that has with the corresponding generating capacity of rotating speed of bearing, corresponding to the oiling agent discharge capacity of the generating capacity control said pump of this generator.
3. bearing means as claimed in claim 1 is characterized in that, the drive portion of said pump is a battery.
4. bearing means as claimed in claim 3 is characterized in that, above-mentioned battery is a fuel cell.
5. bearing means as claimed in claim 4 is characterized in that, above-mentioned fuel feeding assembly body has can take out the stowage arrangement of fuel cell with hydrogen.
6. bearing means as claimed in claim 1 is characterized in that, above-mentioned a plurality of track components and fuel feeding assembly body are ring bodies and are configured to coaxial shape.
7. bearing means as claimed in claim 6 is characterized in that, above-mentioned a plurality of track components are inner ring and outer ring, and said bearing means is for disposing the rolling bearing of a plurality of rolling elements between inner ring and outer ring.
8. bearing means as claimed in claim 1 is characterized in that, above-mentioned fuel feeding assembly body has the sensor of the lubricating status between the opposed faces that is used to detect a plurality of track components, according to the detection output of this sensor said pump is carried out function control.
9. bearing means as claimed in claim 8 is characterized in that, the sensor is a temperature transducer; Simultaneously; This temperature transducer is installed on around the orbit portion of track component, according to the detection output of this temperature transducer, through the oiling agent discharge capacity of control gear control pump.
10. bearing means as claimed in claim 8 is characterized in that, obtains the output value of the sensor and the relation of lubricating status in advance, through the measured load prediction lubricating status of sensor, and corresponding to this control said pump that predicts the outcome.
11. bearing means as claimed in claim 1 is characterized in that, above-mentioned fuel feeding assembly body is installed near the shoulder with the circumferential surface of the opposed fixed side track component of rotary side track component removably.
12. bearing means as claimed in claim 1 is characterized in that said pump comprises motor.
13. bearing means as claimed in claim 1; It is characterized in that; Comprise seal ring, and above-mentioned oiling agent holds and stay case to be installed on removably on the outer side surface of seal ring, above-mentioned drive portion and said pump are arranged on the inner side surface of seal ring; Above-mentioned a plurality of track component comprises inner ring and outer ring, above-mentioned seal ring be installed on the outer ring inner peripheral surface two shoulders and contact with two shoulders of the outer circumferential face of inner ring.
14. bearing means as claimed in claim 1 is characterized in that said pump comprises control circuit, this control circuit control is by the amount of the oiling agent of said pump discharge.
15. bearing means as claimed in claim 14 is characterized in that, above-mentioned control circuit connects said pump and is used between the above-mentioned drive portion of said pump.
16. bearing means as claimed in claim 1 is characterized in that, said pump is to have piezoelectric element and the diaphragm pump of the barrier film that moves back and forth through this piezoelectric element.
17. bearing means; This bearing means has oiling agent and holds and stay case, pump, drive portion; It is characterized in that; Bearing comprises the outer ring and the inner ring that have plane of trajectory orbital respectively, is disposed at the rolling element between outer ring and the inner ring, and at least said pump as fuel feeding assembly body by modularization, this fuel feeding assembly body can be installed near the shoulder of inner peripheral surface of outer ring or near the shoulder of the outer circumferential face of inner ring removably.
18. bearing means as claimed in claim 17 is characterized in that, above-mentioned a plurality of track components and above-mentioned fuel feeding assembly body are ring bodies and are configured to coaxial shape.
19. bearing means as claimed in claim 17 is characterized in that, the drive portion that is used for said pump as fuel feeding assembly body by modularization.
20. bearing means as claimed in claim 17 is characterized in that, bearing comprises the seal ring that is disposed between above-mentioned outer ring and the inner ring.
21. bearing means as claimed in claim 17 is characterized in that, above-mentioned oiling agent hold stay case as above-mentioned fuel feeding assembly body by modularization.
22. bearing means as claimed in claim 17 is characterized in that, said pump comprises that oiling agent is discharged and uses nozzle.
23. bearing means; This bearing means has oiling agent and holds and stay case, pump, drive portion; It is characterized in that; Bearing comprises: have respectively plane of trajectory orbital outer ring and inner ring, be disposed at rolling element and seal ring between outer ring and the inner ring; And, at least said pump and above-mentioned oiling agent hold stay case as fuel feeding assembly body by modularization, above-mentioned fuel feeding assembly body be installed near the shoulder of inner peripheral surface of above-mentioned outer ring removably or near the shoulder of the outer circumferential face of above-mentioned inner ring, or be installed on the inner side surface of above-mentioned seal ring.
24. a bearing means has a plurality of track components of relative movement, it is characterized in that,
Fuel feeding assembly body is as required to the space supply of lubricant between the opposed faces of above-mentioned track component; And; Above-mentioned fuel feeding assembly body has oiling agent and holds pump that stays case, discharges oiling agent and the drive portion that drives said pump, and said pump comprises that oiling agent is discharged and uses nozzle.
25. bearing means as claimed in claim 24 is characterized in that, the opening end that above-mentioned oiling agent is discharged with nozzle is arranged between the opposed faces of above-mentioned track component.
26. bearing means as claimed in claim 25 is characterized in that, said pump is to have piezoelectric element and the diaphragm pump of the barrier film that moves back and forth through this piezoelectric element.
27. a bearing means has a plurality of track components of relative movement, it is characterized in that,
Fuel feeding assembly body is as required to the space supply of lubricant between the opposed faces of above-mentioned track component; And; Above-mentioned fuel feeding assembly body has oiling agent and holds pump, the drive portion that stays case, discharges oiling agent, and control circuit control is by the amount of the oiling agent of said pump discharge.
28. bearing means as claimed in claim 27 is characterized in that, said pump is to have piezoelectric element and the diaphragm pump of the barrier film that moves back and forth through this piezoelectric element.
29. bearing means as claimed in claim 27 is characterized in that, said pump comprises that oiling agent is discharged and uses nozzle.
Hold and stay case, pump, drive portion 30. a bearing means, this bearing means have oiling agent, it is characterized in that; Bearing comprises: have respectively plane of trajectory orbital outer ring and inner ring, be disposed at the rolling element between above-mentioned outer ring and the inner ring; And, at least said pump as fuel feeding assembly body by modularization, and; Above-mentioned fuel feeding assembly body is installed near the shoulder of inner peripheral surface of above-mentioned outer ring or near the shoulder of the outer circumferential face of above-mentioned inner ring removably, and said pump comprises that oiling agent is discharged and uses nozzle.
31. bearing means as claimed in claim 30 is characterized in that, oiling agent hold stay case as above-mentioned fuel feeding assembly body by modularization.
32. bearing means as claimed in claim 30 is characterized in that, said pump is to have piezoelectric element and the diaphragm pump of the barrier film that moves back and forth through this piezoelectric element.
33. bearing means; This bearing means has oiling agent and holds and stay case, pump, drive portion; It is characterized in that bearing comprises: have respectively plane of trajectory orbital outer ring and inner ring, be disposed at the rolling element between above-mentioned outer ring and the inner ring, and; At least said pump as fuel feeding assembly body by modularization; And above-mentioned fuel feeding assembly body is installed near the shoulder of inner peripheral surface of above-mentioned outer ring or near the shoulder of the outer circumferential face of above-mentioned inner ring removably, and above-mentioned fuel feeding assembly body comprises the control circuit of the amount of the oiling agent that control is discharged by said pump.
34. bearing means as claimed in claim 33 is characterized in that, above-mentioned oiling agent hold stay case as above-mentioned fuel feeding assembly body by modularization.
35. bearing means as claimed in claim 33 is characterized in that, said pump is to have piezoelectric element and the diaphragm pump of the barrier film that moves back and forth through this piezoelectric element.
36. bearing means; It is characterized in that; Bearing comprises: have respectively plane of trajectory orbital outer ring and inner ring, be disposed at rolling element and seal ring between above-mentioned outer ring and the inner ring, and, at least pump, the drive portion that is used for said pump and oiling agent hold stay case as fuel feeding assembly body by modularization; And, above-mentioned fuel feeding assembly body be installed near the shoulder of inner peripheral surface of above-mentioned outer ring removably or near the shoulder of the outer circumferential face of above-mentioned inner ring, or be installed on the inner side surface of above-mentioned seal ring.
37. a bearing means has a plurality of track components of relative movement, it is characterized in that,
Fuel feeding assembly body is as required to the space supply of lubricant between the opposed faces of above-mentioned track component; And; Above-mentioned fuel feeding assembly body comprises that oiling agent holds pump that stays case, discharge oiling agent and the drive portion that drives said pump, and said pump is mounted removably.
38. bearing means as claimed in claim 37 is characterized in that, said pump comprises that oiling agent is discharged and uses nozzle.
39. bearing means as claimed in claim 38 is characterized in that, the opening end that above-mentioned oiling agent is discharged with nozzle is arranged between the opposed faces of above-mentioned track component.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002267838A JP4089363B2 (en) | 2002-09-13 | 2002-09-13 | Rolling bearing device |
| JP2002267838 | 2002-09-13 | ||
| JP2002-267838 | 2002-09-13 | ||
| JP2003108707A JP4296392B2 (en) | 2003-04-14 | 2003-04-14 | Bearing device |
| JP2003-108707 | 2003-04-14 | ||
| JP2003108707 | 2003-04-14 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038242583A Division CN100420868C (en) | 2002-09-13 | 2003-09-16 | Bearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101240815A CN101240815A (en) | 2008-08-13 |
| CN101240815B true CN101240815B (en) | 2012-04-04 |
Family
ID=32266225
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038242583A Expired - Fee Related CN100420868C (en) | 2002-09-13 | 2003-09-16 | Bearing device |
| CN2007103059100A Expired - Fee Related CN101240815B (en) | 2002-09-13 | 2003-09-16 | Bearing device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038242583A Expired - Fee Related CN100420868C (en) | 2002-09-13 | 2003-09-16 | Bearing device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4089363B2 (en) |
| CN (2) | CN100420868C (en) |
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| JP5726484B2 (en) * | 2010-11-10 | 2015-06-03 | Ntn株式会社 | Rolling bearing unit |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN100420868C (en) | 2008-09-24 |
| CN1688827A (en) | 2005-10-26 |
| JP2004108388A (en) | 2004-04-08 |
| JP4089363B2 (en) | 2008-05-28 |
| CN101240815A (en) | 2008-08-13 |
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