CN1325836C - Lubricating oil supply mechanism for bearing device - Google Patents
Lubricating oil supply mechanism for bearing device Download PDFInfo
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- CN1325836C CN1325836C CNB2003101235468A CN200310123546A CN1325836C CN 1325836 C CN1325836 C CN 1325836C CN B2003101235468 A CNB2003101235468 A CN B2003101235468A CN 200310123546 A CN200310123546 A CN 200310123546A CN 1325836 C CN1325836 C CN 1325836C
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- reservoir
- wall
- lubricant oil
- bearing
- overcoat
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- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 239000010687 lubricating oil Substances 0.000 title abstract description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 38
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 238000003860 storage Methods 0.000 claims abstract description 6
- 239000000314 lubricant Substances 0.000 claims description 126
- 238000000605 extraction Methods 0.000 claims description 25
- 238000006073 displacement reaction Methods 0.000 claims description 19
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Abstract
To provide a lubricating oil supply mechanism which can certainly supply lubricating oil to a rolling element or a sliding section, in a bearing equipment in which an angle of oscillation movement is so small that the lubricating oil cannot be spread easily. The bearing equipment 1 includes a housing 4, 52, 53 which holds a bearing 3 supporting a rotating shaft 2. In a space which faces the rolling element 8 or the sliding section 62 of the bearing 3 and which is defined between the inner peripheral surface of the housing 4, 52, 53 and the rotating shaft 2, there is provided a storage section 15, 55 in which the lubricating oil 10 can be sealed and stored while maintaining the inner pressure. The storage section 15, 55 is communicated via an oil pathway 12 with a filler port 11 which receives the supply of the lubricating oil 10. The storage section 15, 55 has a wall 17, 57 at least one part of which is elastically displaced in accordance with the inner pressure, so as to forcibly feed the lubricating oil 10 to the rolling element 8 or the sliding section 62. Further, the bearing equipment 1 includes an oil discharge portion 20 which communicates with the outside when the inner pressure of the storage section 15, 55 becomes large excessively. As a result, it is possible to discharge the old lubricating oil 10 to the outside only by supplying the new lubricating oil 10 from the filler port 11. (C)2004,JPO&NCIPI.
Description
Technical field
The present invention relates to be used to support the lubricant oil feed mechanism of the bearing means of the turning axle of various machineries or swing axis etc.
Background technique
Turning axle or swing axis etc. are the various bearings that are used to realize smooth and easy motion of mechanism's use that initial point carries out rotation motion with the center of axle, make axle insert center by bearing after, bearing pack is contained in the inside of overcoat, thus for the maintenance of axle or the surface friction drag when reducing motion make certain contribution.Bearing roughly can be distinguished into rolling bearing and sliding bearing, the former be with spherical or columnar rolling element is assembled in an inner ring that joins and and the outer ring that joins of overcoat between; The latter makes it contact, be supported with slide type with the revolution axial plane by the support that forms accordingly with turning axle.But, under any occasion,, essential with on an amount of the lubricant oil feeding rollers kinetoplast or slide part in order to keep motion smoothly.Though according to the service condition difference of bearing, the method for supplying lubricating oil is also different, the most general method is to supply with the method for oils termly; Be used in combination condition, select the such solid-state shape of stickiness is lower, impregnability is good butter (fat) and the dissipation that causes because of effluxion also is seldom various lubricators.
All concentrate on the position of supply at first and do not flow to everywhere though supply with the lubricant oil of bearing sometimes,, guarantee thus to move smoothly by making the axle revolution just flow to whole rolling element or slide part equably gradually.But along with the process of time,, also can spill and losing of lubricant oil taken place, also can pollute or form unavoidably to change and wait the deterioration that causes, therefore must carry out regular additional or replacement from the gap between axle and the overcoat except dissipation takes place.Sometimes be difficult to lubricant oil is directly supplied on the bearing that is assembled in the overcoat, the measure of sort this problem out is the hole of formation oil circuit to be set on members such as overcoat and in the ingress of oil circuit grease nipple (oil supply port) to be installed, and lubricant oil is directed on the rolling element or slide part of bearing.
In fact, the usage mode of bearing is diversified, for example on the textile manufacturing machine of producing fabric, using the various turning axlees such as roller that are used to batch fabric; Also be used for the narrower swing axis of rotation motion scope as beating-up mechanism or warp-tensioning roller support mechanism, axle.Supporting aspect the bearing of this swing axis also and supporting that turning axle is similarly using rolling bearing or sliding bearing, but, thereby having lubricant oil after the oil supply to be difficult to flow to everywhere tendency because axle is only swung repeatedly with less movement angle.Generally, in bearing lubricated, what is called " notion of critical angle of oscillation " is arranged, angle of oscillation when using then can not make the whole load face of flow of lubricant to rolling element during less than this critical angle of oscillation, will cause that inordinate wear or burn-back etc. are improper because of insufficient lubrication.Particularly as mentioned above, in textile manufacturing machine, mostly use axle to swing less than the angle of critical angle of oscillation, the operating frequency of swing axis or active force are also quite high, thereby are to turn round under extremely serious situation.
Keep normally for the swing axis of the textile manufacturing machine that will use under such condition, will carry out oil supply 1 time to bearing weekly at least.When this point by when carelessness because compare with common turning axle, operating frequency or active force be higher, just take place easily bearing components inordinate wear, the life-span is reduced.And when each oil supply, since with those also not have deterioration, the lubricant oil that can also make full use of discharge from oil drain out, thereby its result also has the problem that lubricant oil is wasted.
Summary of the invention
The present invention makes for the problem that solves above-mentioned prior art existence, its objective is provides a kind of lubricant oil of bearing means feed mechanism, even in the less and lubricant oil difficulty of oscillating motion angle flows to the bearing means of turning axle everywhere, it can both be positively with lubricant oil feeding rollers kinetoplast or slide part.
In order to achieve the above object, the invention provides a kind of lubricant oil feed mechanism of bearing means, it is used for having the bearing of supporting turning axle and the bearing means that keeps the overcoat of bearing, and it has towards the rolling element of bearing or slide part, and between outer sheath inner circumferential surface and turning axle, form in the space, the reservoir of sealed storage lubricant oil, and oil supply port and the oil circuit of giving the reservoir supplying lubricating oil, wherein reservoir is defined by the wall that is arranged between overcoat and the turning axle, press in order to keep in the reservoir, at least a portion of wall is according to pressing and elastic displacement in the reservoir.
And the space that comprises rolling element or slide part that forms between the inner peripheral surface of overcoat and axle is made with the seal space of external isolation and can be stored the reservoir of lubricant oil.This reservoir is sealed, even internal pressure raises, also can not make oil leak; Owing to lubricant oil is supplied with reservoir, thereby can also guarantee from being arranged on the oil circuit that outside oil supply ports such as grease nipple begin to be communicated with.
In order constantly lubricant oil to be sent to rolling element or slide part, reservoir must be often to keep the mechanism that presses in certain level, this by on a part of face that surrounds reservoir, the wall that can carry out elastic displacement be set realize.Because wall is accepted the interior pressure of reservoir and elastic displacement, thereby can interior pressure be kept along with the increase and decrease of the volume of reservoir.In more detail, accept the pressure that lubricant oil is supplied with during oil supply, lubricant oil is filled in the reservoir, its result makes flexibly displacement of wall, and the volume of reservoir is increased, and presses higher state in lubricant oil is maintained.After the oil supply, because with lubrication oil consumption, wall is subjected to the elastic force effect, thereby the direction of recovering towards the displacement that makes it and displacement, makes the volume reducing of reservoir, owing to lubricant oil can be maintained interior pressure condition, thereby lubricant oil can be sent on rolling element and the slide part constantly.Like this, even resemble the former loom, owing to be the less and bearing means of the turning axle that the lubricant oil difficulty flows to of the angular range of supporting oscillating motion, carry out oil supply continually before also need not resembling, can make the time lag lengthening of oil supply, thereby the labour who is spent can cut down oil supply significantly the time.
Scheme 3 described inventions are object lessons that make the structure of wall elasticity displacement according to interior pressure, wall is to be formed by the rigid body material, on the other hand, it is arranged to can be along moving axially, and is to end resilient member on the coat and direction that its bullet is dwindled to the volume that makes reservoir by an end card.More particularly, the wall of energy displacement is to form ring-type with rigid body materials such as metals, be to be configured to Zhou Zuowei guiding face in turning axle periphery and the overcoat and can be along moving axially, and an end of resilient members such as helical spring is contacted with the opposite sides with respect to reservoir of wall, the other end contacts with unshift overcoat.When wall increases along with the interior pressure of reservoir and begins the volume of reservoir to be increased when mobile, and resilient member is compressed between wall and overcoat, can be kept the interior pressure of reservoir by its reaction force.As long as resilient member (effect member) can be applied to load on the wall swimmingly, then with respect to it natural length, use compression and any one form resilient members such as stretching all out of question.
As long as can keep the sealing and the interior pressure of reservoir, then wall just need not be made rigid body as scheme 3 described inventions, can as scheme 4 described inventions, it be replaced to such structure, promptly, wall is to be formed by material that can resiliently deformable, on the other hand, the part of its lip part is ended with the overcoat card.Under this occasion, form wall with rubber-like materials such as synthetic rubber, during making, press and increase and when making the volume of reservoir begin to increase, wall self generation resiliently deformable can be kept interior pressure with its reaction force.And when this wall integral body of rubber-like is mobile by the effect of interior pressure, owing to the reaction force that can not take place to produce by elasticity, thereby the part of wall must be fixed with motionless state, more particularly, the lip part of wall is blocked to be ended on the coat.Though it is qualification various, that be not subjected to special type that this card ends method, as an example, can adopt the groove that ring-type is set on the inner peripheral surface of overcoat, the method that the lip part of wall is fixed etc. chimericly with it.
Because process along with the time, the lubricant oil that is trapped in the reservoir can worsen unavoidably, must carry out regular replacement, when make-up oil, also the lubricant oil of surplus must be discharged, for this reason, as scheme 5 described inventions, best, in reservoir oil extraction portion is set, it be make keep sealing state part by the rising of interior pressure with external communications.Because the displacement amount of wall is determined by interior pressure, thereby be provided with under the occasion that reaches certain reference value in interior pressure, the mechanism that the sealing of reservoir is removed by moving of wall, when replacing lubricant oil, when when oil supply port pressurizes to lubricant oil, carrying out supply, the interior pressure of reservoir is increased, make flexibly displacement of wall, when displacement amount surpassed regulation, reservoir just and external communications just can be discharged to the lubricant oil of old lubricant oil or surplus the outside of reservoir by this structure.
Example as oil extraction portion concrete structure, the situation that the wall that has scheme 3 to be put down in writing forms with the rigid body material, also can enumerate scheme 6, above-mentioned oil extraction portion is being set at least one side in overcoat or turning axle, on the part of the guiding face that wall is guided, be provided with along extend axially and also with the effusion face of external communications; Increase along with interior pressure and when assigned position moves, above-mentioned effusion is showed for reservoir at wall.Wall is the ring-type rigid body, and is concentric with turning axle, and periphery is contacted with the interior week of shell, and wall, is pressurizeed to reservoir by elastic member axially moving with Zhou Zuowei guiding face in turning axle periphery and the shell.Between guiding face and wall, though for keeping seal to use O shape circle etc., when the wall displacement surpasses benchmark, produce the gap between effusion face and the wall, lubricant oil is discharged to the outside thus.
Though effusion face can be arranged on any side of overcoat side or turning axle side, because the processing of effusion face can be caused the reduction of intensity on turning axle, thereby be preferably disposed on the overcoat side of fixed side.And in case by the increase of interior pressure, lubricant oil just when effusion face is discharged to the outside, interior pressure can not be increased to more than the certain value, and when pressure reduced once more in being made by the discharge of lubricant oil, wall just moved, make the gap obturation between wall and the effusion face, interior pressure is maintained in certain value.After this,, press in making and be maintained in certain value owing to the consumption with lubricant oil makes wall move towards the direction of the volume reducing that makes reservoir accordingly, and can be constantly with lubricant oil feeding rollers kinetoplast or slide part.
Except scheme 6, scheme 7 also put down in writing the example of a concrete structure of oil extraction portion, oil extraction portion is arranged on the guiding face at least one side in overcoat or the turning axle, that wall is guided; On position, the oil drainage hole with external communications is being set than the more lateral, position of the wall during pressure in usually; Increase along with interior pressure and when assigned position moves, above-mentioned oil drainage hole is exposed in reservoir at wall.Though the invention of this occasion and scheme 6 records similarly wall be rigid body, with Zhou Zuowei guiding face in turning axle periphery and the overcoat, interior pressure by reservoir increases and elastic displacement, but the oil drainage hole with external communications is being set on this guiding face, when making wall pass through oil drainage hole by the increase of interior pressure, reservoir by oil drainage hole and and external communications, lubricant oil is discharged to the outside.
What scheme 8 was put down in writing is that wall self is the occasion of energy resiliently deformable, at this moment oil extraction portion is when the interior pressure of reservoir surpasses permissible range, the part of the wall that is made of material that can resiliently deformable, the part of promptly joining with turning axle or overcoat deform and cause local the disengaging, make reservoir and external communications thus and removal of lubricant.Under the lip part of the wall that forms by elastic material and the occasion that the overcoat card ends, though wall is kept sealing with the turning axle periphery when contacting, but because resiliently deformable takes place according to the difference of the interior pressure of reservoir in wall, thereby when interior pressure surpasses certain value, by the increase of amount of deformation, it can not be kept and the contacting of turning axle periphery, and produce local gap between the wall, this just forms oil extraction portion, lubricant oil can be discharged to the outside.When the internal drop that is made reservoir by oil extraction is low, forms sealing, just interior pressure can be kept owing to the elasticity of wall self makes it contact once more with turning axle.After this, even lubricant oil is consumed, the wall that has been in elastic deformation also can be towards the direction distortion that recovers original shape, and its result just can continue lubricant oil to deliver to rolling element or slide part.
Can worsen along with the process of time owing to supply with the rolling element of bearing or the lubricant oil of slide part, thereby must replace termly, still, can implement this operation in supply lubricant oil just has good convenience.In the invention as scheme 9 record, reservoir be arranged on the bearing be the center, with respect to axially, with the position of above-mentioned oil supply port opposition side on.Like this since from the lubricant oil of oil supply port supply by just arriving reservoir after the bearing inside, thereby the lubricant oil of replacement bearing inside forcibly.The lubricant oil that injects from oil supply port enters into after the annulus between turning axle and the overcoat, extrudes back arrival reservoir by the inner lubricant oil that will be old of bearing.Owing to press liter in during lasting oil supply, making, thereby can successively old lubricant oil be discharged, and new lubricant oil is substituted into bearing inside and reservoir from oil extraction portion.
Description of drawings
Figure 1A, Figure 1B are illustrated in the structure that rigid material is used for wall that reservoir is separated and uses rolling bearing, on the guiding face of overcoat, be provided with as the effusion face of oil extraction portion, as the sectional view of a kind of mode of lubricant oil feed mechanism; State when Figure 1A is expression work, Figure 1B are the states that is illustrated in when supplying with new lubricant oil.The netted decorative pattern of mark is an expression lubricant oil among the figure.
Fig. 2 A, Fig. 2 B are illustrated in the structure that rigid material is used for wall that reservoir is separated and uses rolling bearing, be provided with on the coat as the effusion face of oil extraction portion, as the sectional view of a kind of mode of lubricant oil feed mechanism; State when Fig. 2 A is expression work, Fig. 2 B are the states that is illustrated in when supplying with new lubricant oil.The netted decorative pattern of mark is an expression lubricant oil among the figure.
Fig. 3 A, Fig. 3 B are illustrated in material that can resiliently deformable is used for the sectional view mode as a kind of mode of lubricant oil feed mechanism under wall that reservoir is separated and the occasion of the using sliding bearing, and Fig. 3 A is that sectional view, Fig. 3 B are profiles.The netted decorative pattern of mark is an expression lubricant oil among the figure.
Fig. 4 A among Fig. 4 A, Fig. 4 B is the sectional view of obtaining along the A-A line of Fig. 3 A; Fig. 4 B is the sectional view that the B-B line of Fig. 3 A is obtained.
Fig. 5 A, Fig. 5 B are illustrated in the bearing means shown in Fig. 3 A, Fig. 3 B, and Fig. 5 A represents to make the wall resiliently deformable and the state of pressing in keeping, Fig. 5 B be expression since in press liter, make reservoir and external communications, lubricant oil be discharged from the state of outside.The netted decorative pattern of mark is an expression lubricant oil among the figure.
Fig. 6 is illustrated in material that can resiliently deformable is used for the wall that reservoir is separated and is on the basis of using sliding bearing, and the sectional view as a kind of mode of structure of the oil supply port of lubricant oil feed mechanism is being set on the end face of overcoat.The netted decorative pattern of mark is an expression lubricant oil among the figure.
Embodiment
Below, with reference to each accompanying drawing the lubricant oil feed mechanism of bearing means of the present invention is described.Shown in the sectional view of Figure 1A, Figure 1B, turn round or the turning axle 2 of oscillating motion can supported freely to rotate by the bearing means 1 that contains parts such as bearing 3, though expression elliptically among the figure, but the structure of turning axle 2 is not limited to by single bearing means support, also can be supported by a plurality of bearing meanss 1.Bearing means 1 roughly has the bearing 3 of the turning axle 2 of packing into; Be arranged to tubular, under the state that turning axle 2 is inserted in the bearing 3, with the overcoat 4 of bearing income.Be arranged to the hollow portion 39 formation first interior perimembranous 31, bottom 32, the second interior perimembranous 33, effusion face 22 and the 3rd interior perimembranous 34 of the overcoat 4 of tubular, the above-mentioned first interior perimembranous 31 is from an end, with same diameter extension; Bottom 32 is to be used for the bearing that will insert from the other end 3 to block to end and become irremovable vertically; Perimembranous 33 is conjointly to be provided with bottom 32 and to extend to axially roughly near the intermediate portion with the outer ring 7 corresponding internal diameters with bearing 3 in second; Above-mentioned effusion face 22 be in second perimembranous carry out the transition to that the regulation of bearing inserting side 40 is provided with intervally and also along with perimembranous in second before bearing inserting side 40 and then hole enlargement; And perimembranous 34 is with the internal diameter identical with the end of effusion face 22, further extends to bearing inserting side 40 in the 3rd.
Turning axle 2 is being provided with the edge portion 37 of extending along diameter of axle direction between different two peripheral parts 35,36 of external diameter, by inner ring 6 of bearing 3 that makes insertion and combining of lip part 37, turning axle 2 can not be moved vertically with respect to inner ring 6.Therewith relatively, the outer ring 7 of bearing 3 is under the state on the bottom 32 that is configured in overcoat 4, can not block movably only on overcoat 4 by back-up ring 16.On the support 5 that overcoat 4 is supported in does not have expression from figure frame is extended, thus turning axle 2 is supported not have in the drawings on the frame of expression.
On the end of the opposite side 41 with the bearing inserting side of overcoat 4, oil supply port 11 is housed, the lubricant oil 10 that is used for supplying with bearing 3 is taken into.This oil supply port 11 is provided with safety check, enters inner lubricant oil 10 and can not be discharged to the outside.On the wall thickness 38 of overcoat 4, be provided with oil circuit 12, be used to make perimembranous 31 connections in oil supply port 11 and first.From a side 41 opposite of overcoat 4 with the bearing inserting side, roughly form discoid oil sealing 13 be configured in turning axle 2 and overcoat 4 first between the perimembranous 31, the annular chamber 14 as the space that is formed between oil sealing 13 and the bearing 3 is maintained in the close state of liquid with respect to the outside.By the back-up ring 16 that can not install movably oil sealing 13 cards were ended on the interior week of overcoat 4, prevent to come off from overcoat 4.On the other hand, insert wall 17, bullet helical spring (resilient member) 19 successively to compression direction from the bearing inserting side 40 of the hollow portion 39 of overcoat 4, meanwhile, will push lid 25 and be fixed tightly on the end of bearing inserting side 40 of overcoat 4, so that these members are enclosed; Above-mentioned wall 17 be with the state that on turning axle 2, passes through, use with second in perimembranous 33 corresponding outside dimensions roughly form discoideus.
Helical spring 19 be make make at least wall 17 since second inner peripheral surface 33, can freely stretch in the formation zone of effusion face 22, and by the direction of pushing helical spring 19 on lid 25 1 ends, wall 17 bullets being dwindled to the volume that makes reservoir 15 of only blocking in overcoat 4 sides.Overcoat 4 sides of joining with wall 17 second in second peripheral part 36 of perimembranous 33 and turning axle 2 be with present embodiment in said guiding face 21 corresponding.Like this, overcoat 4 sides second in just have on the part of perimembranous 33 extend that ground is provided with vertically and with the effusion face 22 of external communications, constitute oil extraction portion 20 thus, when wall 17 moves to assigned position, effusion face 22 just exposes from reservoir 15.And second peripheral part 36 of wall 17 and turning axle 2 and overcoat 4 second in O shape circle 18 is being set between the perimembranous 33 respectively, the space that is formed on the reservoir 15 between bearing 3 and the wall 17 is held in the liquid seal shape with respect to the outside.Pushing the gap 42 that the energy oil extraction also is being set between lid 25 and the turning axle 2.
Annular chamber 14 from the lubricant oil 10 of oil supply port 11 input oil circuit 12, arrival and bearing 3 adjacency by being formed on overcoat 4 inside.Annular chamber 14 is to be to form to overlap 4 inside outside circle-shapedly, has the effect of buffer part, is sent on the rolling element 8 after the lubricant oil 10 that oil circuit 12 is flowed out is detained.
Though lubricant oil 10 just arrives the rolling element 8 of adjacency after annular chamber 14 is detained, but because rolling element 8 is along circumferencial direction, equally spaced arranges, and lubricant oil 10 is carried in the form of a ring from annular chamber 14, thereby can equably lubricant oil 10 be supplied with whole rolling elements 8.Bearing 3 are sides with annular chamber 14 in abutting connection with, opposite side and reservoir 15 adjacency.Reservoir 15 is by the blank part of interior week delimiting of wall 17 at the periphery of turning axle 2 and overcoat 4, has the effect that a certain amount of lubricant oil 10 is detained.Wall 17 is to form the ring-type of joining with the second interior perimembranous 33 of overcoat 4, perimembranous 33 carries out the transition between the interval that forms effusion face 22 in the hollow portion 39 of overcoat 4, in the regulation interval, promptly from second, and the periphery of turning axle 2 can be moved vertically as guiding face 21.So that make wall 17 not only can move swimmingly vertically, can also guarantee sealing, assembling O shape circle 18 in order to ensure the gap between wall 17 and the guiding face 21.
For lubricant oil 10 is transported on the rolling element 8 forcibly, the interior pressure of reservoir 15 must be maintained in height, in order to realize this point, bullet to be acted on the wall 17 to the external force of the direction of bearing 3 than the outside.This external force is taken place by helical spring 19.Because helical spring 19 is to use under the state like this, be its an end card end on the side of wall 17, the other end card only pushing on the lid 25, and be to use down, thereby just often wall 17 bullets are dwindled to the volume that makes reservoir 15 from the compressed state of natural length.Pushing lid 25 is to be tightened to one with bolt and overcoat 4.
With lubricant oil 10 from reservoir 15, be full of oil circuit 12, annular chamber 14 and bearing 3 inside, and keep by the helical spring 19 of elastic displacement under the occasion of interior pressure of reservoir 15, when the swing by turning axle 2 is moved rolling element 8, lubricant oil 10 on the direction of advance of rolling element 8 is released, on the other hand by rolling element 8, after rolling element 8 passes through, just there is not lubricant oil 10.But, because rolling element 8 becomes negative pressure by rear afterwards, thus the lubricant oil 10 around sucking, the lubricant oil 10 that acts on the rolling element 8 can be cut off midway, can keep good lubricating for a long time.Though reservoir 15 is by 18 sealings of oil sealing 13 or O shape circle, along with the process of time, unavoidably lubricant oil 10 is reduced, at this moment is subjected to the effect of helical spring 19 and, can produces constantly and make the effect of wall 17 near bearing 3 to bearing 3 side shiftings by wall 17.
Owing to along with the process of time, unavoidably can make lubricant oil 10 mis-behaves, thereby must change termly, at this moment shown in Figure 1B, the oil supply pipe 29 of supply lubricant oil 10 is engaged with oil supply port 11, with lubricant oil 10 to oil supply port 11 inner force feeds.Through annular chamber 14, by arriving reservoir 15 after the bearing 3, at this moment old lubricant oil 10 is forced out, replaces to new lubricant oil 10 to lubricant oil 10 from oil circuit 12.When the force feed of oil supply pipe 29 is proceeded, just make reservoir 15 in press liter, wall 17 is moved towards the direction that the volume of reservoir 15 is enlarged, helical spring 19 is applied compression.At this moment to the guiding face 21 of the mobile channeling conduct of wall 17 with respect to being same diameter axially, basically, but because near week will constituting oil extraction portion 20 in the overcoat 4 of pushing lid 25 sides, thereby along with to bearing inserting side 40 before and then the effusion face 22 that enlarges gradually of formation diameter.
Like this, under the occasion that continues to move in increase that wall 17 is pressed in along with reservoir 15 and towards the direction of compression helical spring 19, wall 17 surpasses perimembranous 33 in second and on the effusion face of being inserted into 22, produces the gap between wall 17 and overcoat 4, thereby reservoir 15 is opened to the outside.Like this, the old lubricant oil of being released by new lubricant oil 10 10 just is discharged to the outside from the gap, and reservoir 15 is replaced to new lubricant oil 10.When oil supply pipe 29 is unloaded and when stopping the supply of lubricant oil 10 from oil supply port 11 because along with the discharge of lubricant oil 10, the interior pressure of reservoir 15 is reduced, make wall 17 once more with second in perimembranous 33 join, thereby make reservoir 15 revert to sealing state.Effusion face 22 except the occasion that is arranged on overcoat 4 sides, can also be arranged on turning axle 2 sides, and effusion face 22 may not constitute along whole circumference ground, also can constitute by one jiao of cutting guiding face 21.
Though the kind of lubricant oil 10 used in the present invention is unqualified, generally use the lubricating grease of easy to handle solid shape; When air is blended into reservoir 15 grades and makes in the space that lubricant oil 10 is detained, hinder the problem that lubricant oil 10 flows with regard to having, when being preferably in assembling bearing means 1, air is discharged naturally by packing lubrication oil 10.Among the figure on reservoir 15 members such as grade the netted decorative pattern of mark be that expression is trapped in lubricant oil 10 in the space.
Bearing means 1 shown in Fig. 2 A, its basic structure is same with Figure 1A, Figure 1B, but the structure difference of oil extraction portion 20, the effusion face 22 shown in Figure 1A, Figure 1B not is replaced to the oil drainage hole 23 that the guiding face 21 of guaranteeing overcoat 4 inside is connected with the outside with the structure of oil extraction portion 20.When the interior pressure of reservoir 15 is in the predetermined range, owing to oil drainage hole 23 is not communicated with reservoir 15, thereby maintain under the sealing state, the form of Figure 1A there is not change.When replacing lubricant oil 10, shown in Fig. 2 B, oil supply pipe 29 is engaged with oil supply port 11, send into new lubricant oil 10, the interior pressure of reservoir 15 is increased, when wall 17 leaves bearing 3 when far away, because oil drainage hole 23 is connected with reservoir 15, the higher lubricant oil 10 of pressure is just discharged to the outside.Though the oil drainage hole 23 shown in Fig. 2 A, Fig. 2 B is connected overcoat 4 end faces with guiding face 21, the set-up mode of oil drainage hole 23 is diversified, also have from overcoat 4, by support 5 arrives the outside.
Embodiment when Fig. 3 A, Fig. 3 B represent that bearing is so-called sliding bearing is expression is used for the example of wall 57 with materials such as synthetic rubber that can resiliently deformable.Fig. 3 A is that expression sectional view, Fig. 3 B are the expression profiles, and Fig. 4 A is that sectional view, Fig. 4 B that expression obtains along the A-A line of Fig. 3 A is the sectional view that expression obtains along the B-B line of Fig. 3 A.This bearing means 1 is not the such rolling bearing of the foregoing description device, is to be made of so-called sliding bearing, taking it by and large, bearing means 1 has: the cylindrical sleeve 51 of the turning axle 2 of packing into, be inserted in the overcoat 52,53 of the sleeve 51 of packing under the state of hollow portion of sleeve 51 at turning axle 2.
Roughly forming sleeve 51 cylindraceous is inserted on the turning axle 2.The overcoat 52,53 that sleeve 51 constitutes by being divided into disome along diameter of axle direction, keeping from the outside with turning axle 2 with surrounding.In more detail, overcoat the 52, the 53rd is arranged to one by bolt tightening, and by the parts such as key that do not have expression among the figure, sleeve 51 is held in and can not turns round with respect to turning axle 2, between the interior perimembranous of turning axle 2 and sleeve 51, constitute so-called slide part 62.And either party of overcoat 52,53 adorns on the basic machine framework that does not have expression in the drawings, and turning axle 2 is supported and can be turned round with respect to the basic machine framework.
Overcoat the 52, the 53rd, extend vertically first in perimembranous 56 and shaft end side, spread all over whole circumference ground and carve from interior perimembranous along diameter of axle direction and establishing angle-shaped groove 60 and the edge portion 59 of formation ring-type between angle-shaped groove 60 and outer end 58.On the outer side surface of the axle center of overcoat 52, be provided with oil supply port 11, on the other hand, overcoat 52,53 first near the axial central authorities of perimembranous 56, spread all over whole circumference direction landform annular groove 54 circlewise, it is connected with oil supply port 11 by the oil circuit 12 that forms on wall thickness 61.Therewith relatively, on the sleeve 51 along on the position of the trisection angle of whole circumference direction, be provided with and send oilhole 26, it is from the peripheral part side, connect towards the interior perimembranous of inserting turning axle 2, and on interior perimembranous, form send oil duct 27, they are to send the position of oilhole 26 to extend to two axle head directions from this.If lubricant oil 10 can by turning axle 2 and sleeve 51 between the gap, then can make and send oil duct 27 abridged structures above-mentioned.
Relative therewith, the wall 57 that constitutes with the member of energy resiliently deformables such as synthetic rubber has the base part 63 that forms tubular; Annular flange portion 59 first lip part 64 and second lip parts 65 chimeric, that from base part 63 along diameter of axle direction, extend with above-mentioned overcoat 52,53 with spreading all over whole circumference; The tip portion 67 that ratio second lip part 65 more extends to axle head direction, one-tenth tubular.Allow distortion, thereby interior week end of lip part 59 formed base part 63 with respect to wall 57 leaves at packing lubrication oil 10: first lip parts 64.Therewith relatively, since first lip part 64 are not the thin-walleds that form the energy resiliently deformable with lip part 59 engaging portion with, thereby when as described below lubricant oil 10 being filled into reservoir 55, be subjected to acting on first lip part 64 of wall 57 interior pressure and can be to axle head direction resiliently deformable.
Though the interior perimembranous of wall 57 is to make with turning axle 2 connecting airtight, but on the circumferential part, vertically, extend to from base end part 66 oil extraction ditch 28 be set near the tip portion 67, make as described below being filled into lubricant oil 10 in the reservoir 55 and interior pressure when surpassing permissible range, the tip portion 67 of wall 57 can be carried out resiliently deformable along diameter of axle direction with mentioning.
Shown in Fig. 3 A, Fig. 3 B, sleeve 51 is inserted on the turning axle 2, on the other hand, make base end part 66 in the face of landing, wall 57 being inserted from both sides, then, be configured to wrap into from the outside with making first lip part 64 of the lip part 59 of overcoat 52,53 and wall 57 and the regional tabling between second lip part 65.The result is had the function of reservoir 55 by overcoat 52,53, wall 57 and turning axle 2 cingens inner spaces.And no matter second lip part 65 is in elastic deformation, still is in the state that the outer end 58 with overcoat 52,53 joins because of lubricant oil 10 is filled into reservoir 55, even there is water droplet to exist, also can not enter into the inside of reservoir 55 on every side.
Support and the overcoat the 52, the 53rd of maintenance sleeve 51 by the sleeve 51 as bearing cylindraceous by roughly being for turning axle 2, the structure that can cut apart up and down, the peripheral part of overcoat 52,53 is provided with oil supply port 11, through oil circuit 12 arrives the annular groove 54 that surround sleeve 51 peripheries from the lubricant oil of supplying with 10 here.For lubricant oil 10 is sent to sleeve 51, setting at equally spaced three positions and to connect the inside and outside oilhole 26 that send, from annular groove 54 by the lubricant oil 10 that send oilhole 26 and arrives slide part 62 on the inner peripheral surface of sleeve 51 along through axially process sending oil duct 27 and diffuses flow to whole slide part 62.Though in this figure, the oil extraction ditch 28 that send oil duct 27 or wall 57 of sleeve 51 all is three, in fact must guarantee only number according to the parameters such as pendulum angle of turning axle 2.
Fig. 5 A represents to be kept by wall 57 resiliently deformables the appearance of the interior pressure of reservoir 55, when oil supply pipe 29 being engaged with oil supply port 11 and forcibly during supplying lubricating oil 10, the interior pressure of oil circuit 12 or reservoir 55 just rises, and makes wall 57 that resiliently deformable take place laterally.But because first lip part 64 of wall 57 is fixed on the lip part 59 of overcoat 52,53, thereby make base part 63 to moving axially, thereby the volume of reservoir 55 is increased, keep the interior pressure of reservoir 55 by this reaction force.And because first lip part 64 is pressed on the overcoat 52,53, thereby can improves seal, can prevent really that foreign matter from invading from the outside by pressing in this.
When the lubricant oil supplied with from oil supply port 11 10 is superfluous, just shown in Fig. 5 B, pressure by the lubricant oil 10 that enters into oil extraction ditch 28 is mentioned wall 57 partly, and the oil extraction portion 20 of formation and external communications is discharged to the outside with lubricant oil 10 between wall 57 and turning axle 2.The carrying out of discharging along with lubricant oil 10 and when internal drop is low makes the wall 57 of mentioning be returned to original shape and connects airtight with turning axle 2, because oil extraction portion 20 is by obturations, thereby can guarantee sealing once more.
Fig. 6 be with Fig. 3 A, Fig. 3 B similarly, material that can resiliently deformable is used for wall 57 and bearing is structure example during with sliding bearing in expression, overcoat 52,53 is housed in the frame 5, oil supply port 11 is being set on the end face of overcoat 52, from here on, successively through oil circuit 12, annular groove 54, carve and be located at sending oil duct 27 and arrive reservoir 55 on the sleeve 51.Because the wall 57 energy resiliently deformables of reservoir 55, thereby can keep interior pressure, oil sealing 13 and annular groove 54 adjacency.
The lubricant oil feed mechanism of this bearing means is not limited to return continuously the above turning axle that turns around, and also carries out rotating, so-called swing axis applicable to the range of movement with a discontented circle.In fiber machinery, the particularly field at textile manufacturing machine, the reciprocating mechanism that is used to heald frame takes place that for example is used to batch the supporting mechanism of the tensioning roller (rear roller) of warp thread, the supporting mechanism of passing on the rocker of beating motion, Warp opening device maybe conveys to motion the supporting mechanism of two moving bars of heald frame, can also be widely used for the supporting mechanism of supporting mechanism, support turning axle or the sliding axle of the support turning axle of trimming device, take-up gear etc. in addition.
Below, effect of the present invention is described.
Invention according to scheme 1,2,3,4 records, because the reservoir that is sealing is to keep interior pressure by the wall that carries out elastic displacement, be to utilize to press rolling element or the slide part of forcibly lubricant oil being supplied with supportive device in this, thereby can prevent accidents such as the inordinate wear of the turning axle that causes because of insufficient lubrication or burn-back generation, can improve reliability, in addition, because can be, thereby oil supply can be extended, alleviates the labour of the required cost of maintenance management at interval from reservoir constantly with lubricant oil feeding rollers kinetoplast or slide part.
According to the invention of scheme 5,6,7,8 records, when the interior pressure of reservoir surpasses reference value, can the sealing of reservoir be opened, old lubricant oil or superfluous lubricant oil are discharged to the outside by the displacement or the distortion of wall.
Invention according to scheme 9 records, because bearing is configured between oil supply port and the reservoir, thereby must arrive reservoir by the rolling element or the slide part of bearing means from the lubricant oil that oil supply port is taken into, can be positively with lubricant oil feeding rollers kinetoplast or slide part.
Claims (9)
1. the lubricant oil feed mechanism of bearing means, be used for having the bearing (3) of support turning axle (2) and keep the bearing means of the overcoat (4,52,53) of described bearing (3), it is characterized in that this lubricant oil feed mechanism comprises: towards reservoir (15, the 55) rolling element (8) of this bearing (3) or slide part (62) and that in the inner peripheral surface of this overcoat (4,52,53) and the space between this turning axle (2), form, can sealed storage lubricant oil (10); Be used for supplying with the oil supply port (11) and the oil circuit (12) of described lubricant oil to described reservoir (15,55), wherein said reservoir (15,55) is defined by the wall (17,57) that is arranged between described overcoat (4,52,53) and the described turning axle (2), in order to keep the interior pressure of described reservoir (15,55), at least a portion of described wall (17,57) is according to the interior pressure of described reservoir (15,55) and elastic displacement.
2. the lubricant oil feed mechanism of bearing means as claimed in claim 1 is characterized in that, described reservoir (15,55) is provided with around described turning axle (2), towards the rolling element (8) of described bearing (3) or slide part (62).
3. the lubricant oil feed mechanism of bearing means as claimed in claim 1 or 2, it is characterized in that, described wall (17) is to be formed by the rigid body material, on the other hand, being arranged to can be along moving axially, and is to end the resilient member (19) on overcoat (4) and direction that its bullet is dwindled to the volume that makes reservoir (15) by an end card.
4. the lubricant oil feed mechanism of bearing means as claimed in claim 1 or 2 is characterized in that, above-mentioned wall (57) is to be formed by material that can resiliently deformable, on the other hand, it lip part (64,65) a part and overcoat (52,53) card only.
5. the lubricant oil feed mechanism of bearing means as claimed in claim 1 or 2 is characterized in that, in above-mentioned reservoir (15,55) oil extraction portion (20) is set, and makes the part of keeping sealing state by the rising of interior pressure and external communications.
6. the lubricant oil feed mechanism of bearing means as claimed in claim 5, it is characterized in that, on at least one side in overcoat (4) or turning axle (2) above-mentioned oil extraction portion (20) is being set, on the part of the guiding face (21) that wall (17) is guided, be provided with along extend axially and also with the effusion face (22) of external communications; Increase along with interior pressure and when assigned position moves, make the above-mentioned face (22) of selecting expose reservoir (15) at wall (17).
7. the lubricant oil feed mechanism of bearing means as claimed in claim 5 is characterized in that, above-mentioned oil extraction portion (20) is arranged on the guiding face (21) at least one side in overcoat (4) or the turning axle (2), that wall (17) is guided; On position, the oil drainage hole (23) with external communications is being set than the more lateral, position of the wall (17) during pressure in usually; Increase along with interior pressure and when assigned position moves, above-mentioned oil drainage hole (23) is exposed in reservoir (15) at wall (17).
8. the lubricant oil feed mechanism of bearing means as claimed in claim 5, it is characterized in that, above-mentioned oil extraction portion (20) is when the interior pressure of reservoir (55) surpasses permissible range, part by the above-mentioned wall (57) that constitutes of material that can resiliently deformable, promptly the part of joining with turning axle (2) or overcoat (52,53) deforms and causes local the disengaging, makes reservoir (55) and external communications thus.
9. the lubricant oil feed mechanism of bearing means as claimed in claim 1 or 2 is characterized in that, above-mentioned reservoir (15,55) be arranged on bearing (3) be the center, with respect to axially, with the position of above-mentioned oil supply port (11) opposition side on.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002377722A JP4236921B2 (en) | 2002-12-26 | 2002-12-26 | Lubricating oil supply mechanism of bearing device |
| JP377722/02 | 2002-12-26 | ||
| JP377722/2002 | 2002-12-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1512099A CN1512099A (en) | 2004-07-14 |
| CN1325836C true CN1325836C (en) | 2007-07-11 |
Family
ID=32814814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101235468A Expired - Fee Related CN1325836C (en) | 2002-12-26 | 2003-12-26 | Lubricating oil supply mechanism for bearing device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4236921B2 (en) |
| CN (1) | CN1325836C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730524A (en) * | 2012-06-29 | 2012-10-17 | 佛山市顺德区金泰德胜电机有限公司 | Tractor |
| TWI457482B (en) * | 2008-07-25 | 2014-10-21 | Tsudakoma Ind Co Ltd | The planetary gear type weaving device of the loom |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5129969B2 (en) * | 2006-03-24 | 2013-01-30 | 公益財団法人鉄道総合技術研究所 | Lubrication structure of bearing |
| JP5249101B2 (en) * | 2009-03-26 | 2013-07-31 | 公益財団法人鉄道総合技術研究所 | Lubrication structure of bearing |
| JP5746934B2 (en) * | 2011-08-31 | 2015-07-08 | 電気化学工業株式会社 | Roller and conveyor device |
| CN102384350B (en) * | 2011-11-25 | 2015-02-11 | 南车株洲电机有限公司 | Rolling bearing and lubricating mechanism thereof |
| JP5821781B2 (en) * | 2012-05-29 | 2015-11-24 | 株式会社ジェイテクト | Rolling bearing device |
| CN104179981A (en) * | 2014-08-19 | 2014-12-03 | 江苏中寰卫星导航通信有限公司 | Waterproof rotary shaft mechanism of satellite |
| CN107084198B (en) * | 2017-06-06 | 2022-10-18 | 湖南美蓓达科技股份有限公司 | Bearing convenient for adding lubricating oil |
| CN110896261B (en) * | 2019-11-14 | 2021-08-17 | 湖南荣立电机有限公司 | Double-stator magnetic field permanent magnet direct current coreless motor |
| CN217556426U (en) | 2021-05-20 | 2022-10-11 | 津田驹工业株式会社 | Water-jet loom |
| CN113339408B (en) * | 2021-07-08 | 2022-05-31 | 哈电风能有限公司 | Generator single bearing lubrication sealing structure and generator set |
| CN115807815A (en) * | 2022-10-25 | 2023-03-17 | 江苏龙达传动有限公司 | Self-lubricating damping bearing seat |
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| US4018304A (en) * | 1975-10-08 | 1977-04-19 | Baxter Travenol Laboratories, Inc. | Lubrication system for a centrifugal liquid processing system |
| US4241959A (en) * | 1978-02-04 | 1980-12-30 | Robert Bosch Gmbh | Apparatus for long-term lubrication of bearing elements |
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| CN102730524A (en) * | 2012-06-29 | 2012-10-17 | 佛山市顺德区金泰德胜电机有限公司 | Tractor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1512099A (en) | 2004-07-14 |
| JP4236921B2 (en) | 2009-03-11 |
| JP2004205013A (en) | 2004-07-22 |
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Granted publication date: 20070711 |