CN101240815A - Bearing device - Google Patents
Bearing device Download PDFInfo
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- CN101240815A CN101240815A CNA2007103059100A CN200710305910A CN101240815A CN 101240815 A CN101240815 A CN 101240815A CN A2007103059100 A CNA2007103059100 A CN A2007103059100A CN 200710305910 A CN200710305910 A CN 200710305910A CN 101240815 A CN101240815 A CN 101240815A
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- pump
- mentioned
- assembly body
- bearing means
- feeding assembly
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- 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
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 by 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 as shown in figure 10, constitute by lubricating oil storage chamber 23, barrier film 24, nozzle 25, piezoelectric element 26, described 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 by pump 22 that stores; Described barrier film 24 is arranged in this lubricating oil storage chamber 23; Described nozzle 25 is formed on the part of removing this barrier film 24; Described piezoelectric element 26 is used for applying to barrier film 24 pressure of vibration and change lubricating oil storage chamber 23.Can be by this structure with reference to the spy by 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, as the work mechanism bearing means, 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 grommet 34 in this running shaft 31 to be provided with and to embed bearing inner race 32 in the running shaft 31, simultaneously, has the oiling agent feed mechanism 30 that is used for to the space of outer ring 33 and inner ring 32 Q supply of lubricant G, and has a lubricant chamber 36 that is arranged in the grommet 34, from the oiling agent stream 35 of this lubricant chamber 36 to above-mentioned space Q supply of lubricant G, oiling agent tap hole 37 and oiling agent are supplied with groove 38, are provided with in above-mentioned lubricant chamber 36 and can be connected with atmosphere one side, disconnected lubricant chamber internal pressure regulating mechanism 39.
This lubricant chamber internal pressure is adjusted structure 39, is made of the stopper 41 of atmosphere introduction hole 42 and marmem system, and described 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 described marmem system clogs atmosphere introduction hole 42, seal lubrication agent chamber 36 usually, deforms when temperature rises, 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 disclosed embodiment in the past of flat 3-113119 communique above-mentioned spy, because lubricant pump is a vane pump, and boundary dimension is bigger, therefore cause 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 proposes at the problems referred to above, the fuel feeding assembly that is installed on the bearing can be carried out miniaturization, tinyization 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,
Be provided with the fuel feeding assembly body of supply of lubricant as required between the opposed faces of these track components, 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 accordingly with the generating capacity of this generator.
But above-mentioned drive portion if having generator with the corresponding generating capacity of rotating speed of bearing, then can be controlled the oiling agent discharge capacity of said pump accordingly with the generating capacity of this generator.So, by 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 the bearing integral that assembly is installed can be made the shape identical with the track component of ring-type.Thus, the space identical of can packing into, the degrees of freedom of raising equipment design with common bearing means.
In addition, the invention is characterized in that above-mentioned a plurality of track components are inner ring and outer ring, described 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, at least 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.
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 by 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, by the oiling agent discharge capacity of control gear control pump.
In addition, the sensor, can or be smog for the temperature transducer or the pressure transducer of the annulus between track component, the suspended particulate detecting sensor of dust etc., perhaps for being used to detect the vibration transducer of 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 by this device, can detect the lubricating status of bearing inside, 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 the linkage structure of the fuel tank of bearing means of expression the 1st mode of execution of the present invention and micropump.
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, the specific embodiment of the present invention is described.The 1st figure to the 3 figure represent 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, owing to be known as the deep channel type ball bearing, therefore, between being arranged at as rail slot 1a, 2a on the inside and outside circle 1,2 of a plurality of track components, clamp a plurality of balls 3 as a plurality of rolling elements, a plurality of balls 3 are held by 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 the present embodiment, 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 the pump (micropump) 10 of the portion of being driven, the rotation that is accompanied by inner ring 1 is generated electricity by generator 9, by 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., described diaphragm pump makes as barrier film 12 to-and-fro motion that are driven portion by for example piezoelectric element 11, produces the lubricant oil that sucks in the fuel tank 8 with this in pump chamber 10c, and it is discharged the pumping action of discharging with nozzle 10a from oil.The energising of above-mentioned piezoelectric element 11 is undertaken by 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 by the oil on the side that will be arranged at micropump 10 and to supply with among the usefulness hole 8a via the oil on the chimeric side of going into to be arranged at fuel tank 8 of rubber hose 14, are 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 miniaturization of rolling bearing system integral body.In addition, when the lubricant oil deficiency of fuel tank 8, fuel tank 8 and seal ring 5 together can 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, in the lubricant oil deficiency in fuel tank 8, 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, by 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 represents 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 by 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) discharges 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.
Have these circular shapes battery 6, pump 10 etc. assembly body 7 in conjunction with and be configured to ring-type, and can carry out dismounting, for example, can be installed on removably on the inner side surface of a seal ring 5.In addition, except seal ring 5, also these parts can be fixed on the plate (omit diagram) of ring-type, this plate dismounting is arranged on the side as inner ring 1 outer circumferential face of rotary component or outer ring 2 inner peripheral surfaces or seal ring 5 freely.
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 ring bodies with the roughly the same diameter of rolling bearing of ring-type, the shape of integral body that the bearing means of this assembly body therefore 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 be fuel cell as described later.
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 oiling agent and discharge, on this barrier film 12, for example piezoelectric element 11 is installed with nozzle 10a and oiling agent inlet nozzle 10b.In addition, pump chamber 10c and oiling agent hold and stay case 8, by above-mentioned oiling agent inlet nozzle 10b, link to be communicated with inner form, seal by rubber hose 14 around this oil inlet nozzle 10b.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 micropump 10 by battery 6, with these rolling element 3 or supply of lubricant such as plane of trajectory orbital 1a, 2a in the annulus Q that is arranged between inner ring 1 and the outer ring 2.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 be illustrated with diaphragm pump simple in structure, 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, it is also conceivable that the subminiature cooling fan that is used for cooling bearing inside, the alarm that is used to notify temperature anomaly, monitor the surveillance device etc. of mistake and not enough state of the oiling agent of bearing inside 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, the detection output of this thermocouple can 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, with battery 6 and pump 10, oiling agent hold the assembly body 7 that stays case 8 etc. at least, can be installed near the shoulder of inner peripheral surface of the outer circumferential face of inner ring 1 or outer ring 2 with dismantling, the device on the side of seal ring 5, described 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, pump 10 can 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 needn't take off seal ring 5 when the supply oiling agent, 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 represents 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 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, constitute by 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 accordingly with the shape star of the track component of bearing means.
As described in detail above, 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 thereon, 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, by 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, supplying with as bearing lubricant under the situation of the driving source of using micropump, fastening 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 wish 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 (32)
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 pump and uses nozzle with the oiling agent discharge that links to each other with this pump, and the opening end that above-mentioned oiling agent is discharged with nozzle is arranged between the opposed faces of above-mentioned track component.
2. bearing means as claimed in claim 1, it is characterized in that, above-mentioned fuel feeding assembly body has drive portion, and 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, above-mentioned fuel feeding assembly body has drive portion, and 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 described 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, by 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, by 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 is characterized in that, comprises seal ring, and oiling agent holds and stay case to be installed on removably on the outer side surface of seal ring, drive portion and pump are arranged on the inner side surface of seal 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 said pump comprises drive portion, and control circuit connects said pump and is used between the above-mentioned drive portion of said pump.
16. bearing means, 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 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.
17. bearing means as claimed in claim 16 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.
18. bearing means as claimed in claim 16 is characterized in that, the drive portion that is used for said pump as fuel feeding assembly body by modularization.
19. bearing means as claimed in claim 16 is characterized in that, bearing comprises the seal ring that is disposed between above-mentioned outer ring and the inner ring.
20. 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 outer ring and the inner ring, and, at least pump and oiling agent hold stay case as fuel feeding assembly body by modularization, 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 or be installed on the inner side surface of above-mentioned seal ring removably.
21. 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 pump of discharging oiling agent and the drive portion that drives said pump, and said pump comprises oiling agent discharge nozzle.
22. bearing means as claimed in claim 21 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.
23. 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 the pump of discharging oiling agent, and control circuit control is by the amount of the oiling agent of said pump discharge.
24., it is characterized in that above-mentioned fuel feeding assembly body comprises that oiling agent holds and stays case as claim 1,22 or 23 described bearing meanss.
25. bearing means, 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 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 described pump comprises that oiling agent is discharged and uses nozzle.
26. bearing means, 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 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.
27. as claim 16,25 or 26 described bearing meanss, it is characterized in that, oiling agent hold stay case as above-mentioned fuel feeding assembly body by modularization.
28., it is characterized in that said pump is to have piezoelectric element and the diaphragm pump of the barrier film that moves back and forth by this piezoelectric element as claim 1,22,23,25 or 26 described bearing meanss.
29. 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 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 or be installed on the inner side surface of above-mentioned seal ring removably.
30. 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 pump of discharging oiling agent and the drive portion that drives said pump, and said pump is mounted removably.
31., it is characterized in that said pump comprises oiling agent discharge nozzle as claim 16,23 or 30 described bearing meanss.
32. bearing means as claimed in claim 31 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 |
|---|---|---|---|
| JP2002-267838 | 2002-09-13 | ||
| JP2002267838A JP4089363B2 (en) | 2002-09-13 | 2002-09-13 | Rolling bearing device |
| JP2002267838 | 2002-09-13 | ||
| JP2003108707 | 2003-04-14 | ||
| JP2003108707A JP4296392B2 (en) | 2003-04-14 | 2003-04-14 | Bearing device |
| JP2003-108707 | 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 true CN101240815A (en) | 2008-08-13 |
| CN101240815B 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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Also Published As
| Publication number | Publication date |
|---|---|
| JP4089363B2 (en) | 2008-05-28 |
| CN100420868C (en) | 2008-09-24 |
| JP2004108388A (en) | 2004-04-08 |
| CN101240815B (en) | 2012-04-04 |
| CN1688827A (en) | 2005-10-26 |
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