CN207715562U - Self-lubricating bearing - Google Patents
Self-lubricating bearing Download PDFInfo
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- CN207715562U CN207715562U CN201721541260.5U CN201721541260U CN207715562U CN 207715562 U CN207715562 U CN 207715562U CN 201721541260 U CN201721541260 U CN 201721541260U CN 207715562 U CN207715562 U CN 207715562U
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- gas curtain
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Abstract
The utility model is related to self-lubricating bearings.The utility model on the rotation lasso of bearing by being arranged the guide surface section extended to except the high-pressure area coverage area of high pressure gas curtain,And the guide surface section is made to be connected with the gas curtain bevel phase that the inclined-plane that lasso itself has is located within the high-pressure area coverage area of high pressure gas curtain is rotated,So that will not be influenced by high pressure gas curtain when injecting lubricating oil to guide surface section and lead to lubricating oil splash and noise will not be generated during splash,The centrifugal force generated when simultaneously using rotation lasso high speed rotation,So that lubricating oil can flow to gas curtain bevel phase along guide surface section,Reaching gas curtain bevel phase, can continue with centrifugal force flows to bearing roller later,Whole process had both avoided high pressure gas curtain region,Realize the self-lubricate of bearing using centrifugal force again simultaneously,Clever structure,Do not waste lubricating oil,It will not lead to environmental pollution,Too big noise is not had.
Description
Technical field
The utility model is related to self-lubricating bearings.
Background technology
With the development of industry, bearing develops towards high speed, long-life direction, such as is made in high-speed ＆ precise progressive die industry
In electro spindle, bearing needs good carrying speed ability and long life requirement.Under ultrahigh speed operating mode, good profit
Cunning is the guarantee of its high speed performance, and bearings mostly uses side oil jet lubrication at present, as shown in Figure 1, the angular contact ball bearing
Including inner ring 01, outer ring 02, retainer 04, steel ball 03, cone spacer 05 and outer ring spacer 06, inner ring 01 is to be rotated relative to outer ring 02
Rotation lasso and with rotation ferrule slope, i.e. inner ring inclined-plane 011, so as to play the function of axial carrying, outer ring 02 is
Outer ring can also be used as rotation lasso, inner ring as static for certain bearings in the static lasso static relative to inner ring 01
The side on the close inner ring inclined-plane 011 of bearing is arranged in the form of lasso, cone spacer 05 and outer ring spacer 06, not only can be to adjacent axis
It holds and is isolated, and the oil injection structures such as fuel feed hole 061 can be set, to carry out oil jet lubrication to the bearing to run at high speed.Such as Fig. 2
Shown, when bearing ultrahigh speed rotates, 04 both sides of retainer of bearing cavity can form high pressure gas curtain 07, when by fuel feed hole 061
When the lubricating oil 08 of place's injection is sprayed from side, it can be stopped by high pressure gas curtain 07, prevent the lubricating oil 08 of injection from abundant
Into Bearing inner, it is be easy to cause the weary oil of lubrication, eventually leads to burn-out of bearing；For this problem, some factories are sprayed by changing
Corners of the mouth degree or increase oil pressure mode strongly to spray into lubricating oil, it is too many to may result in Bearing inner lubricants capacity in this way, causes
It radiates uneven, can also burn bearing；In addition, above-mentioned spray the mode of lubricating oil due to high-voltage oil liquid and high pressure gas curtain from side
Direct collision can form strong, ear-piercing tweeting sound, cause serious noise pollution, and high-voltage oil liquid can also sputter strongly,
It not only wastes lubricating oil but also bad border is polluted.
Utility model content
It lubricated fully the purpose of this utility model is to provide one kind when running at high speed lubrication and does not waste lubricating oil, made an uproar
The small self-lubricating bearing of sound.
To achieve the above object, the self-lubricating bearing of the utility model adopts the following technical scheme that：
Technical solution 1：Self-lubricating bearing includes rotation lasso and static lasso, and rotating on lasso has rotation lasso
Inclined-plane, the rotation ferrule slope include being connected with each other and being located at high pressure gas shade to set the inside and outside gas curtain bevel phase of range
With guide surface section, the guide surface section is obliquely installed and the lubricating oil in guide surface section is made to flow to gas curtain under the influence of centrifugal force
Bevel phase is lubricated so that lubricating oil can flow to roller under the action of the centrifugal force along gas curtain bevel phase.
Advantageous effect：The utility model extends to the high-pressure area of high pressure gas curtain by being arranged on the rotation lasso of bearing
Guide surface section except coverage area, and the guide surface section is made to be located at high pressure gas curtain with the inclined-plane that lasso itself has is rotated
Gas curtain bevel phase within the coverage area of high-pressure area is connected so that will not be by high pressure when injecting lubricating oil to guide surface section
The influence of gas curtain and lead to lubricating oil splash and noise will not be generated during splash, while using rotation lasso high speed revolve
The centrifugal force generated when turning so that lubricating oil can flow to gas curtain bevel phase along guide surface section, and reaching after gas curtain bevel phase can be after
Continuous to flow to bearing roller using centrifugal force, whole process had not only avoided high pressure gas curtain region, but also was realized using centrifugal force
The self-lubricate of bearing, clever structure do not waste lubricating oil, will not lead to environmental pollution, not have too big noise.
Technical solution 2：On the basis of technical solution 1, the guide surface section is inner hole surface or trough wall surface, inner hole surface or slot
Wall surface surrounds the Oil Guide channel by lubricating oil.
Technical solution 3：On the basis of technical solution 2, the Oil Guide channel is straight channel.
Technical solution 4：On the basis of technical solution 3, the Oil Guide channel is pore.
Oil Guide channel, which is arranged to pore, to be had the characteristics that not stop and anti-return, is particularly suitable for answering for ultrahigh speed bearing
Use environment.
Technical solution 5：On the basis of technical solution 2, rotation lasso, which corresponds to, is coaxially arranged with annular oil at guide surface section
Slot, the slot of annular oil groove is equipped at avoids lubricating oil from keeping off oil along the varus that the cell wall of annular oil groove is thrown away under the action of the centrifugal force
Platform.
It is next that the setting of gear tank deck can be such that the lubricating oil in annular oil groove does not throw away when rotated.
Technical solution 6：On the basis of technical solution 5, the cell wall of annular oil groove forms angle with varus gear tank deck,
The Oil Guide channel is located at angle.
Since lubricating oil is gathered in angle, communication port is located at can facilitate lubricating oil to enter under the action of the centrifugal force herein
Oil Guide channel.
Technical solution 7：On the basis of technical solution 6, the cell wall of the annular oil groove is obliquely installed the profit so that thereon
Lubricating oil flows to the angle under the action of the centrifugal force.
Technical solution 8：On the basis of technical solution 7, self-lubricating bearing further includes being fixed with the static lasso
The spacer ring of connection, the spacer ring are equipped with fuel feed hole, and the outlet of fuel feed hole is stretched into annular oil groove to be annular oil groove fuel feeding.
Technical solution 9：On the basis of technical solution 8, the cell wall of the outlet of the fuel feed hole towards the annular oil groove
It is arranged so that the lubricating oil exported sprays to the inclination cell wall.
Technical solution 10：On the basis of technical solution 2-9 any one, Oil Guide channel has multiple and along rotation lasso
Circumferentially it is uniformly arranged.
In this way so that lubrication is more uniform.
Technical solution 11：On the basis of technical solution 8 or 9, it is additionally provided on the spacer ring for being passed through cooling air with right
Bearing carries out cooling air admission hole, and the outlet of air admission hole is used for the one of the static lasso of the close bearing of alignment bearings retainer
Side, the pressure of cooling air are more than the pressure of high pressure gas curtain.
Technical solution 12：On the basis of technical solution 1, the guide surface section is a plane or an arc surface.
Technical solution 13：On the basis of technical solution 12, the guide surface section is plane, the angle of inclination of plane and gas
The angle of inclination of curtain bevel phase is identical.
Description of the drawings
Fig. 1 is a kind of angular contact ball bearing of the prior art and its lubrication system；
Fig. 2 is gas curtain effect schematic diagram when angular contact ball bearing runs at high speed and lubricates；
Fig. 3 is the structural schematic diagram of the embodiment 1 of the self-lubricating bearing of the utility model；It is also working condition lubrication
Principle schematic；
Fig. 4 is the structural schematic diagram of the embodiment 2 of the self-lubricating bearing of the utility model；
Fig. 5 is the structural schematic diagram of the embodiment 3 of the self-lubricating bearing of the utility model；
Fig. 6 is the structural schematic diagram of the embodiment 4 of the self-lubricating bearing of the utility model；
In Fig. 1-2：01- inner rings, 011- inner rings inclined-plane, the outer rings 02-, 03- steel balls, 04- retainers, 05- cone spacers, 06-
Outer ring spacer, 061- fuel feed holes, 07- high pressure gas curtains, the lubricating oil of 08- injections；
In Fig. 3-6：1- inner rings, 11- inner rings inclined-plane, the outer rings 2-, 3- steel balls, 4- retainers, 51- annular oil grooves, 52- lubrications
Oilhole, 53- keep off tank deck, 6- outer ring spacers, 61- fuel feed holes, 62- air admission holes, 7- high pressure gas curtains, 8- lubricating oil, the filling regions m-, s- profits
Lubricating oil flows to.
Specific implementation mode
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
The inclined surface being mentioned below is not limited to straight inclination, and refers to continuous transition and there are one inclined trend, from
And lubricating oil when rotated thereon is allow to need the position lubricated along inclined-plane flow direction.
The embodiment 1 of the self-lubricating bearing of the utility model：Rolling bearing in the present embodiment is angular contact ball axis
It holds, in other embodiments, also can be replaced High-Speed Cylindrical Roller Bearing, as shown in figure 3, angular contact ball bearing includes inner ring 1
（Rotate lasso）, outer ring 2, steel ball 3, retainer 4 and outer ring spacer 6.The wherein side for being arranged close to outer ring spacer 6 of inner ring 1
Equipped with inner ring inclined-plane 11（Rotate ferrule slope）.Outer ring spacer 6 is fixed relative to outer ring 2, and inner ring 1 includes the ontology of annular, ring
Shape ontology includes two parts, a part of, another part and first consistent with the inner ring structure of the angular contact ball bearing of the prior art
Part is structure as a whole and from the bevelled side of tool of first part to the axially extending of shaft, and second part is annular,
Above-mentioned inner ring inclined-plane include positioned at inner ring first part on gas curtain bevel phase and the guide surface section on second part,
Gas curtain bevel phase and guide surface section connect, and gas curtain bevel phase is located at the higher-pressure region of the high pressure gas curtain generated when rolling bearing rotation
It is provide in range, and the high-pressure area that gas curtain bevel phase is located at the generation of high pressure gas curtain is provide with other than range, second of inner ring
Point periphery be equipped with annular oil groove 51, the side side wall of close the steel ball of annular oil groove 51 is inclined surface, and the side of inclined surface
There is the gear tank deck 53 extended to annular oil groove 51, gear tank deck 53 and the inclined surface of annular oil groove 51 to surround angle structure at,
It is circumferentially equipped with the oilhole 52 of multiple a diameter of 1mm in the angle of angle structure, the hole face of oilhole is as above-mentioned
Guide surface section, i.e., the Oil Guide channel being connected to annular oil groove 51.The oil inlet of the oilhole 52 is located at the folder of angle structure
At angle, the oil outlet of oilhole 52 is docked with the edge on inner ring inclined-plane 11 and positioned at the top at 11 edge of inner ring inclined-plane, this goes out
Hydraulic fluid port is close to the setting of inner ring inclined-plane 11 so that the lubricating oil 8 flowed out from oil outlet can both avoid retainer 4 and inner ring inclined-plane 11 it
Between high pressure gas curtain 7, and can be flowed directly on inner ring inclined-plane 11, since bearing inner race 1 has centrifugal force when running at high speed,
Lubricating oil 8 on inner ring inclined-plane 11 can be flowed along inner ring inclined-plane 11 to steel ball 3 under the action of the centrifugal force, herein
Centrifugal force need to be less than lubricating oil 8 to the adsorption capacity on inner ring inclined-plane 11, and inner ring inclined-plane 11 is thrown away to prevent lubricating oil 8.Lubrication herein
The axis of oilhole 52 be straight line, i.e., oilhole 52 be straight hole, and the channel extending direction of oilhole 52 be from oil inlet extremely
Oil outlet is gradually distance from the axis of inner ring, to make the lubricating oil in oilhole 52 smoothly to oil outlet stream by centrifugal force
It is dynamic.
Outer ring spacer 6 is annular shape, which is provided with fuel feed hole 61, and the import of fuel feed hole 61 is located on the periphery of outer ring spacer 6, into
The outlet of oilhole 61 is positioned at 51 top of annular oil groove of inner ring, so that the lubricating oil of the outlet outflow from fuel feed hole 61 can directly flow
Enter in annular oil groove 51.There are three fuel feed holes 61, and uniformly distributed along the circumferential direction of outer ring spacer 6.The outlet face lubricating oil of fuel feed hole 61
The oil inlet in hole 52 is arranged, in order to which lubricating oil is easier to enter in oilhole 52.The lower semisection of wherein fuel feed hole 61 is located at
On the pillar extended to axis direction, pillar extends in annular oil groove 51.Air admission hole 62, air admission hole are additionally provided on outer ring spacer 6
62 extending direction is identical as the extending direction of fuel feed hole 61, based on spacer ring 6 outward axis extend, bending segment vertically to
The side extension of bearing inner race 1, outer ring 2.Region between the gas outlet alignment retainer 4 of air admission hole 62 and outer ring 2, due to this
High pressure gas curtain 7 is will produce in region when running at high speed, therefore the gas pressure in air admission hole 62 should be more than high pressure gas curtain 7
Pressure, so that cooling air can penetrate high pressure gas curtain 7 and enter in bearing cavity and cooled down to bearing cavity.
The greasing of the rolling bearing of the utility model：As shown in figure 3, in 1 high speed rotation of bearing inner race, by into
Oilhole 61 sprays into lubricating oil into annular oil groove 51, and lubricating oil is in the folder between gear tank deck 53 and the inclined surface of annular oil groove 51
At angle, enter oilhole 52 under the action of the centrifugal force, continue reliance on centrifugal force in oilhole 52 flows to out as power
Hydraulic fluid port can not only avoid high pressure gas curtain 7 but also can be directly by lubricating oil since oil outlet is close to the setting of the upper surface of inner ring inclined-plane 11
It flow on inner ring inclined-plane 11, lubricating oil continues reliance on centrifugation force effect edge on inner ring inclined-plane 11 after entering on inner ring inclined-plane 11
Inner ring inclined-plane 11 is flowed to steel ball 3, and then steel ball 3 under the action of the centrifugal force gets rid of lubricating oil to bearing outer ring 2, to realization pair
The lubrication of entire bearing.By the outer ring spacer in above-mentioned angular contact ball bearing, lubricating oil is injected into the annular oil grooves to bearing inner race
In, optimum way is that lubricating oil is directly sprayed to the entrance of oilhole, and edge is obliquely installed lubricating oil under the action of the centrifugal force
Oil guiding hole flow to the gas curtain bevel phase on inner ring, then rely on centrifugal force make the lubricating oil in gas curtain bevel phase along gas curtain inclined-plane
Duan Liuxiang steel balls, then steel ball lubricating oil is got rid of into the outer ring to bearing under the influence of centrifugal force, realize the lubrication to bearing.
Cooling procedure：It is passed through high pressure gas by air admission hole 62, high pressure gas is straight after being sprayed from the gas outlet of air admission hole 62
It connects and wears out high pressure gas curtain 7 and enter in bearing cavity, cool to bearing to realize.
In other embodiments：It is interior as lubricating oil is guided the oilhole to the guide surface on bearing inner race inclined-plane
Hole face also can be replaced trough wall surface, carry out Oil Guide by oil guide groove at this time；Certainly, guide surface also can be replaced plane, plane
Angle of inclination can suitably change, but the lubricating oil that must assure that when rotated thereon can obtain the centrifugal force of enough flowings；Draw
Guide face is alternatively arcwall face, includes the two kinds of arcwall faces or waveform face or stairstepping inclined-plane of indent and evagination；Lubricating oil
The diameter in hole is also not necessarily limited to 1mm, also greater than or less than 1mm；Oilhole also can be replaced arcuate socket, waveform hole etc.；
The quantity of fuel feed hole be alternatively one, two or more；The quantity of air admission hole be alternatively one, two or more；For
Rolling bearing of the outer ring as rotation lasso, lubrication spacer ring are outer ring spacer, and corresponding annular oil groove and profit is arranged on outer ring spacer
Lubrication hole.
Embodiment 2：As shown in figure 4, difference from example 1 is that, guide surface section be plane or arcwall face,
Plane herein can be multiple individual planes and be provided at circumferentially spaced or continuously be arranged or annular surface along inner ring；
Cambered surface herein can be multiple individual cambered surfaces, and be arranged circumferentially along inner ring or continuous arcwall face, due to arc
Shape face consecutive hours is annular, so form the spherical calotte of annular.
When in use：Lubricating oil is injected in the guide surface section of leakage by oiling device, due to the effect of centrifugal force
The lubricating oil in guide surface section can be made to flow to coupled gas curtain bevel phase, the lubrication in gas curtain bevel phase along the guide surface section
Oil can continue towards steel ball under the action of the centrifugal force, be located at due to guide surface section except the high-pressure area of high pressure gas curtain, adopted
With oiling device to will not lead to lubricating oil splash because of the influence of high pressure gas curtain when spray lubricating oil thereon, will not be because of high pressure
The shock of gas curtain and lubricating oil and generate noise, although and gas curtain bevel phase being provide in range in the higher-pressure region of high pressure gas curtain,
But since close to not influenced by high pressure gas curtain at the surface of gas curtain bevel phase, gas curtain bevel phase is flowed to along guide surface section
The surface that lubricating oil can be close to gas curtain bevel phase is flowed to steel ball, plays the purpose to bearing lubrication.
Embodiment 3：As shown in figure 5, with embodiment 2 the difference is that, the inclination of guide surface section and gas curtain bevel phase
Angle is consistent, can facilitate the processing on inner ring inclined-plane in this way.
Embodiment 4：As shown in fig. 6, with embodiment 2 the difference is that, the angle ratio of guide surface section and horizontal axis
The angle of gas curtain bevel phase and horizontal axis is small.
In other embodiments：Rotation lasso is alternatively outer ring, and inclined-plane is arranged on outer ring at this time；Angular contact ball bearing
Also it can be replaced High-Speed Cylindrical Roller Bearing；Oilhole as Oil Guide channel also can be replaced the channel that groove face surrounds；
Can be by the following method lubricating oil is injected on inner ring inclined-plane, it is interior to ride over the mode on inner ring inclined-plane for example, by using metal tube
Circle injects lubricating oil on inclined-plane；Or using fuel feed hole is arranged on outer ring spacer, the oil outlet of fuel feed hole is made to be arranged within being close to
It encloses on inclined-plane, be sprayed directly on on inner ring inclined-plane simultaneously by spray regime and avoid the high pressure gas curtain above inner ring inclined-plane.
Claims (13)
1. self-lubricating bearing, including rotation lasso and static lasso, rotating on lasso has rotation ferrule slope, feature
Be, the rotation ferrule slope include be connected with each other and be located at high pressure gas shade set the inside and outside gas curtain bevel phase of range and
Guide surface section, the guide surface section is obliquely installed and so that the lubricating oil in guide surface section is flowed to gas curtain under the influence of centrifugal force oblique
Face section is lubricated so that lubricating oil can flow to roller under the action of the centrifugal force along gas curtain bevel phase.
2. self-lubricating bearing according to claim 1, characterized in that the guide surface section is inner hole surface or cell wall
Face, inner hole surface or trough wall surface surround the Oil Guide channel by lubricating oil.
3. self-lubricating bearing according to claim 2, characterized in that the Oil Guide channel is straight channel.
4. self-lubricating bearing according to claim 3, characterized in that the Oil Guide channel is pore.
5. self-lubricating bearing according to claim 2, characterized in that rotation lasso corresponds to coaxially to be set at guide surface section
It is equipped with annular oil groove, the slot of annular oil groove is equipped at avoids lubricating oil from being thrown away under the action of the centrifugal force along the cell wall of annular oil groove
Varus keep off tank deck.
6. self-lubricating bearing according to claim 5, characterized in that the cell wall of annular oil groove and varus gear oil
Platform forms angle, and the Oil Guide channel is located at angle.
7. self-lubricating bearing according to claim 6, characterized in that the cell wall of the annular oil groove be obliquely installed with
Lubricating oil thereon is set to flow to the angle under the action of the centrifugal force.
8. self-lubricating bearing according to claim 7, characterized in that self-lubricating bearing further include with it is described quiet
The spacer ring that only lasso is fixedly connected, the spacer ring are equipped with fuel feed hole, and the outlet of fuel feed hole is stretched into annular oil groove to be ring
Shape oil groove fuel feeding.
9. self-lubricating bearing according to claim 8, characterized in that the outlet of the fuel feed hole is towards the annular
The cell wall of oil groove is arranged so that the lubricating oil of outlet sprays to the inclination cell wall.
10. according to the self-lubricating bearing described in claim 2-9 any one, characterized in that Oil Guide channel have it is multiple and
Circumferential direction along rotation lasso is uniformly arranged.
11. self-lubricating bearing according to claim 8 or claim 9, characterized in that be additionally provided on the spacer ring for being passed through
For cooling air to carry out cooling air admission hole to bearing, the outlet of air admission hole is used for the static of the close bearing of alignment bearings retainer
The side of lasso, the pressure of cooling air are more than the pressure of high pressure gas curtain.
12. self-lubricating bearing according to claim 1, characterized in that the guide surface section is a plane or an arc surface.
13. self-lubricating bearing according to claim 12, characterized in that the guide surface section is plane, plane
Angle of inclination is identical as the angle of inclination of gas curtain bevel phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721541260.5U CN207715562U (en) | 2017-11-17 | 2017-11-17 | Self-lubricating bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721541260.5U CN207715562U (en) | 2017-11-17 | 2017-11-17 | Self-lubricating bearing |
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| Publication Number | Publication Date |
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| CN207715562U true CN207715562U (en) | 2018-08-10 |
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ID=63061510
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721541260.5U Active CN207715562U (en) | 2017-11-17 | 2017-11-17 | Self-lubricating bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763074A (en) * | 2017-11-17 | 2018-03-06 | 洛阳轴承研究所有限公司 | A kind of self-lubricating bearing |
-
2017
- 2017-11-17 CN CN201721541260.5U patent/CN207715562U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763074A (en) * | 2017-11-17 | 2018-03-06 | 洛阳轴承研究所有限公司 | A kind of self-lubricating bearing |
| CN107763074B (en) * | 2017-11-17 | 2020-07-03 | 洛阳轴承研究所有限公司 | Self-lubricating rolling bearing |
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