CN208474322U - Closed type plain radial bearing with radial lubrication agent storage tank - Google Patents
Closed type plain radial bearing with radial lubrication agent storage tank Download PDFInfo
- Publication number
- CN208474322U CN208474322U CN201821107193.0U CN201821107193U CN208474322U CN 208474322 U CN208474322 U CN 208474322U CN 201821107193 U CN201821107193 U CN 201821107193U CN 208474322 U CN208474322 U CN 208474322U
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- Prior art keywords
- lubricant
- bearing
- inner race
- outer ring
- storage tank
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Abstract
A kind of closed type plain radial bearing with radial lubrication agent storage tank includes bearing inner race, it is installed on the sealing ring of bearing inner race, bearing outer ring, the cambered surface of the bearing inner race is equipped with several lubricant reservoirs, and lubricant reservoir is evenly distributed on the two sides of bearing inner race, the lubricant reservoir of the same side on bearing inner race is arranged radially, the two sides of the cambered surface of bearing inner race are additionally provided with the seal groove of annular, sealing ring is arranged in seal groove, to prevent lubricant from leaking out, the bearing outer ring is equipped at least two lubricant injection holes, lubricant injection hole is through to the intrados of bearing outer ring by the extrados of bearing outer ring, it is faced in the middle part of lubricant injection hole and lubricant reservoir, to inject lubricant into lubricant reservoir by lubricant injection hole, the upper end in lubricant injection hole is equipped with end cap, bearing is when in use, End cap is fastened and connected with lubricant injection hole, to prevent extraneous miscellaneous dirt from entering Bearing inner.
Description
Technical field
The utility model relates to oscillating bearing field more particularly to a kind of closed type with radial lubrication agent storage tank to
Heart oscillating bearing.
Background technique
Outer ring and two of the closed type plain radial bearing by an inner ring with spherical outside surface, one with Internal Spherical Surface are close
Seal composition, inner ring, outer ring contact spherical surface be working surface, fill lubricant between working surface, lubricant be lubricating oil or
Lubricating grease, sealing ring are installed on contact area two sides.The effective ground resistance of suitable lubricant, sealing ring can be stored between working surface
Gear introduced contaminants enter working surface, have important meaning to the reliability and service life that improve bearing.
Existing closed type plain radial bearing, as shown in Figure 1, a circumferential lubricant storage is arranged at the middle part of inner ring
Slot, and circumferentially arranged there are two lubricant injection hole at the middle part of outer ring, lubricant by injection orifice injection bearing inside, and borrow
The rotation and beat for helping inner ring are distributed in lubricant between working surface, and the two sides of outer ring are provided with seal groove, wherein being equipped with
Sealing ring.This structure design is primarily present following three defects: first is that seal groove is set to outer ring, processing is inconvenient, and seals
Slot side is very close with cycle surface, and sidewall thickness is smaller, draws in outer ring and splits and when inner ring is pressed into outer ring, be easy to produce and collapse
Phenomena such as lacking.Second is that lubricant is unevenly distributed between working surface, have focused largely on around circumferential lubricant reservoir；Third is that
Bearing is under load effect, contact surface central region contact stress highest, due to the presence of circumferential lubricant reservoir, the two sides of slot
It is easy to produce stress concentration phenomenon, abrasion is caused to aggravate；Disadvantages described above will cause bad product rate in bearing manufacture process and increase, together
When in use bearing life reduce, reliability decrease is especially even more serious under severe duty.
Summary of the invention
In view of this, lubricant can be made to be evenly distributed it is necessary to provide one kind and bad product rate is low has radial profit
The closed type plain radial bearing of lubrication prescription storage tank.
A kind of closed type plain radial bearing with radial lubrication agent storage tank includes bearing inner race, is installed in bearing
The cambered surface of sealing ring, the bearing outer ring of circle, the bearing inner race is equipped with several lubricant reservoirs, and lubricant reservoir uniformly divides
The lubricant reservoir of the same side of cloth on the two sides of bearing inner race, bearing inner race is arranged radially, the cambered surface of bearing inner race
Two sides be additionally provided with annular seal groove, sealing ring be arranged in seal groove, to prevent lubricant from leaking out, on the bearing outer ring
Equipped at least two lubricant injection holes, lubricant injection hole is through to the inner arc of bearing outer ring by the extrados of bearing outer ring
Face faces in the middle part of lubricant injection hole and lubricant reservoir, to be injected by lubricant injection hole into lubricant reservoir
The upper end of lubricant, lubricant injection hole is equipped with end cap, and when in use, end cap is fastened and connected bearing with lubricant injection hole, with
Prevent extraneous miscellaneous dirt from entering Bearing inner.
Preferably, the seal groove includes groove top platform, vertical side wall, slot bottom, sloped sidewall, the opening of seal groove to
On, one end of groove top platform is connected with the upper end of vertical side wall, and the lower end of vertical side wall is connected with the side of slot bottom, vertical side wall
Positioned at the outside of bearing inner race, to prevent sealing ring from slipping out of seal groove, the other side of slot bottom and the lower end phase of sloped sidewall
Even, sloped sidewall is located at the inside of bearing inner race, in order to seal mounting groove, correspondingly, the sealing ring includes seam allowance inner circle
Cylinder, vertical side, inner diameter cylindrical face, inclined side and outer diameter spherical surface, seam allowance inner cylinder face match with groove top platform, vertical
Side matches with vertical side wall, and inner diameter cylindrical face matches with slot bottom, and inclined side matches with sloped sidewall, outer diameter spherical surface
Match with the intrados of bearing outer ring, to be sealed to lubricant, while preventing sealing ring from slipping.
Preferably, lubricant storage chamber is additionally provided in the bearing inner race, the upper end of the lubricant storage chamber is equipped with defeated
Oilhole, oil transportation hole are connected to the lubricant reservoir of the two sides of bearing inner race, with by lubricant reservoir storage or release lubricant,
Resilient balls are equipped in lubricant storage chamber, to control the outflow of lubricant.
Preferably, the axial horizontal space of the lubricant reservoir of the bearing inner race two sides is no less than the width of bearing outer ring
20%, the outboard end of lubricant reservoir at a distance from the end face of ipsilateral bearing outer ring be not less than 3 millimeters, the lubricant
The shape of the cross section of storage tank is slotted hole shape, and the opening width of lubricant reservoir is not less than 3 millimeters, the depth of lubricant reservoir
Not less than 1 millimeter so that agent can uniform fold to the surface of bearing inner race.
Preferably, the vertical side wall of the seal groove is vertical with the axis of bearing, and sloped sidewall and axis angle are 60 °
~ 75 °, the width of groove top platform is 1~1.5 millimeter, and the distance between vertical side wall of 2 seal grooves is equal to bearing outer ring
Width, so that sealing ring blocks lubricant in the gap between bearing outer ring and bearing inner race.
Preferably, the diameter in the lubricant injection hole is not more than the opening width of lubricant reservoir.
Preferably, the seam allowance inner cylinder face of the sealing ring and seal groove groove top platform are to be interference fitted, magnitude of interference 2 ~
3 millimeters；Inner diameter cylindrical face and seal groove slot bottom are to be interference fitted, 2 ~ 4 millimeters of magnitude of interference；Outer diameter spherical surface and outer ring Internal Spherical Surface were
It is full of cooperation, 2 millimeters of magnitude of interference.
The utility model has the advantages that the closed type plain radial bearing with radial lubrication agent storage tank of the utility model, is suitable for
Using lubricating oil or lubricating grease as lubricant, the bad product rate in manufacturing process can be reduced, more lubricants can be stored, and moisten
Lubrication prescription more uniformly spreading on the work surface, the position of lubricant reservoir avoids the maximum area of working surface contact stress
Domain, this can mitigate the stress concentration degree of lubricant reservoir two sides, be conducive to reduce abrasion, improve bearing life.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the closed type plain radial bearing of the prior art.
Fig. 2 is the structural schematic diagram for the closed type plain radial bearing that the utility model has radial lubrication agent storage tank.
Fig. 3 is the knot of the bearing inner race for the closed type plain radial bearing that the utility model has radial lubrication agent storage tank
Structure schematic diagram and seal groove structure schematic diagram.
Fig. 4 is another preferable implementation for the closed type plain radial bearing that the utility model has radial lubrication agent storage tank
The structural schematic diagram of mode.
Fig. 5 is the structural representation for the closed type plain radial bearing outer ring that the utility model has radial lubrication agent storage tank
Figure.
Fig. 6 is that there is the utility model the structure of the closed type plain radial bearing sealing ring of radial lubrication agent storage tank to show
It is intended to.
In figure: bearing inner race 10, lubricant reservoir 11, seal groove 12, sloped sidewall 120, groove top platform 121, vertical side
Wall 122, slot bottom 123, bearing outer ring 20, lubricant injection hole 21, sealing ring 30, outer diameter spherical surface 31, inclined side 32, in seam allowance
Cylindrical surface 33, vertical side 34, inner diameter cylindrical face 35.
Specific embodiment
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Please refer to Fig. 1 to Fig. 6, a kind of closed type plain radial bearing with radial lubrication agent storage tank 11 includes bearing
Inner ring 10, sealing ring 30, the bearing outer ring for being installed on bearing inner race 10, if the cambered surface of the bearing inner race 10 is equipped with dry lubrication
Agent storage tank 11, and lubricant reservoir 11 is evenly distributed on the two sides of bearing inner race 10, the lubrication of the same side on bearing inner race 10
Agent storage tank 11 is arranged radially, and the two sides of the cambered surface of bearing inner race 10 are additionally provided with the seal groove 12 of annular, and sealing ring 30 is arranged
In seal groove 12, to prevent lubricant from leaking out, the bearing outer ring is equipped at least two lubricant injection holes 21, lubricant
Injection orifice 21 is through to the intrados of bearing outer ring, lubricant injection hole 21 and lubricant reservoir 11 by the extrados of bearing outer ring
Middle part face, to inject lubricant into lubricant reservoir 11 by lubricant injection hole 21, lubricant injection hole 21
Upper end is equipped with end cap, and when in use, end cap is fastened and connected bearing with lubricant injection hole 21, to prevent extraneous miscellaneous dirt from entering axis
Hold inside.
In a better embodiment, the center of end cap is equipped with fixing axle, and fixing axle and lubricant injection hole are interference fitted,
So that end cap and lubricant injection hole are fastened and connected.
End cap is fastened and connected with lubricant injection hole, only a kind of conventional implementation of the utility model.It is another compared with
In good embodiment, the fixing axle of end cap is equipped with external screw thread, and lubricant injection hole is equipped with the internal screw thread matched with end cap, so that
End cap is threadedly coupled with lubricant injection hole.
Closed type plain radial bearing provided by the utility model with radial lubrication agent storage tank 11 is suitable for profit
Lubricating oil or lubricating grease work in the occasion that need to be sealed as lubricant.Seal groove 12 is arranged on 10 body of bearing inner race, is convenient for
Processing, and it is avoided that seal groove 12 is arranged in cracking of generating on bearing outer ring body and collapses the defects of scarce, reduce manufacturing process
Bad product rate.When bearing working, lubricant is injected from lubricant injection hole 21 to lubricant reservoir 11, including lubricant reservoir 11
On the one hand the spherical uniform distribution of circle body can store more lubricants, and distribution of the lubricant on friction surface is more
Uniformly, on the other hand, the position of lubricant reservoir 11 avoids the maximum region of working surface contact stress, this can mitigate lubrication
The stress concentration degree of 11 two sides of agent storage tank is conducive to reduce abrasion, improves bearing life.Meanwhile bearing working region two sides
It is sealed using sealing ring 30, prevents foreign particles from entering bearing working face.In a better embodiment, sealing ring 30
Material is polytetrafluoroethylene (PTFE), has many advantages, such as that high- and low-temperature resistance, coefficient of friction are small, corrosion-resistant, anti-aging.The utility model it is upper
Feature is stated, certain Social benefit and economic benefit is made it have.
Further, the seal groove 12 includes groove top platform 121, vertical side wall 122, slot bottom 123, sloped sidewall 120,
One end of the opening upwards of seal groove 12, groove top platform 121 is connected with the upper end of vertical side wall 122, the lower end of vertical side wall 122
It is connected with the side of slot bottom 123, vertical side wall 122 is located at the outside of bearing inner race 10, to prevent sealing ring 30 from seal groove 12
The other side of interior slippage, slot bottom 123 is connected with the lower end of sloped sidewall 120, and sloped sidewall 120 is located at the interior of bearing inner race 10
Side, in order to seal mounting groove 12, correspondingly, the sealing ring 30 includes seam allowance inner cylinder face 33, vertical side 34, internal diameter circle
Cylinder 35, inclined side 32 and outer diameter spherical surface 31, seam allowance inner cylinder face 33 match with groove top platform 121, vertical side 34 with
Vertical side wall 122 matches, and inner diameter cylindrical face 35 matches with slot bottom 123, and inclined side 32 matches with sloped sidewall 120,
Outer diameter spherical surface 31 and the intrados of bearing outer ring match, and to be sealed to lubricant, while preventing sealing ring 30 from slipping.
Further, if being additionally provided with dry lubricant storage chamber in the bearing inner race 10, the lubricant storage chamber it is upper
End is equipped with oil transportation hole, and oil transportation hole is connected to the lubricant reservoir 11 of the two sides of bearing inner race 10, to be deposited by lubricant reservoir 11
Storage or release lubricant, lubricant storage chamber is interior to be equipped with resilient balls, to control the outflow of lubricant.
The bearing inner race 10 of the utility model 3D printing technique can be used then to polish and be made.Since resilient balls have bullet
Property, therefore resilient balls can be filled in lubricant storage chamber, and after filling in resilient balls, when bearing inner race 10 rotates, elasticity rolling
Pearl is acted on by centrifugal force, can be blocked oil transportation hole, to reduce bleeding of lubricant.When resilient balls stop motion, it is located at
The lubricant storage chamber of 10 upper end of bearing inner race is because the liquid level of lubricant is lower than the position in oil transportation hole, while being located at bearing inner race
The lubricant storage chamber of 10 lower ends is because the gravity of resilient balls can block oil transportation hole；Positioned at 10 two sides of bearing inner race
Lubricant storage chamber the liquid level in oil transportation hole is higher than due to the liquid level of lubricant, while resilient balls do not seal in oil transportation hole completely
Stifled, lubricant gradually can be discharged into 10 surface of bearing inner race from oil transportation hole.In a better embodiment, the oil transportation hole is loudspeaker
Shape, in order to which resilient balls block oil transportation hole.
The ratio that the density of lubricant reservoir 11, the area of lubricant tank account for 10 surface area of bearing inner race can all influence profit
Whether lubrication prescription can be uniformly distributed.Therefore, further, the lubricant reservoir 11 of 10 two sides of bearing inner race is axial horizontal
Spacing is no less than the 20% of the width of bearing outer ring, the outboard end of lubricant reservoir 11 and the end face of ipsilateral bearing outer ring
Distance is not less than 3 millimeters, and the shape of the cross section of the lubricant reservoir 11 is slotted hole shape, the opening width of lubricant reservoir
Not less than 3 millimeters, the depth of slot is not less than 1 millimeter so that lubricant can uniform fold to the surface of bearing inner race 10.It is described
Slotted hole shape refers to the cross-sectional shape of slotted hole.
Further, the vertical side wall 122 of the seal groove 12 is vertical with the axis of bearing, sloped sidewall 120 and axis
Wire clamp angle is 60 ° ~ 75 °, and the width of groove top platform 121 is 1~1.5 millimeter, between the vertical side wall 122 of 2 seal grooves 12
Distance be equal to bearing outer ring width so that sealing ring 30 by lubricant block between bearing outer ring and bearing inner race 10
In gap.
Further, the diameter in the lubricant injection hole 21 is not more than the opening width of lubricant reservoir 11, to prevent
Excessive lubricant enters in the gap between bearing inner race 10 and bearing outer ring.
If the diameter in lubricant injection hole 21 is greater than the opening width of lubricant reservoir 11, in injection lubricant
When, lubricant can deviate lubricant reservoir 11, and the sky of bearing inner race 10 and bearing outer ring is entered so as to cause excessive lubricant
In gap.To cause the waste of lubricant, while the sealing of lubricant can be made to have an impact.
Further, the seam allowance inner cylinder face 33 of the sealing ring 30 is matched with 12 groove top platform 121 of seal groove for interference
It closes, 2 ~ 3 millimeters of magnitude of interference；Inner diameter cylindrical face 35 and 12 slot bottom 123 of seal groove are 2 ~ 4 millimeters of magnitude of interference of interference fit；Outer diameter ball
Face 31 and outer ring Internal Spherical Surface are to be interference fitted, 2 millimeters of magnitude of interference.
If magnitude of interference is bigger than normal, sealing ring 30 can generate larger friction with bearing outer ring, to influence making for bearing
Use effect.If magnitude of interference is less than normal, the sealing effect of sealing ring 30 can be had an impact.
Above disclosures are merely preferred embodiments of the utility model, the utility model cannot be limited with this certainly
Interest field, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and according to this reality
The equivalent variations made by novel claim, still falls within the scope of the utility model.
Claims (7)
1. a kind of closed type plain radial bearing with radial lubrication agent storage tank, it is characterised in that: including bearing inner race, peace
Sealing ring, bearing outer ring loaded on bearing inner race, the cambered surface of the bearing inner race are equipped with several lubricant reservoirs, and lubricant
Storage tank is evenly distributed on the two sides of bearing inner race, and the lubricant reservoir of the same side on bearing inner race is arranged radially, bearing
The two sides of the cambered surface of inner ring are additionally provided with the seal groove of annular, and sealing ring is arranged in seal groove, described to prevent lubricant from leaking out
Bearing outer ring is equipped at least two lubricant injection holes, and lubricant injection hole is through to outside bearing by the extrados of bearing outer ring
The intrados of circle faces in the middle part of lubricant injection hole and lubricant reservoir, to be stored up by lubricant injection hole to lubricant
Lubricant is injected in slot, the upper end in lubricant injection hole is equipped with end cap, and when in use, end cap and lubricant injection hole fasten bearing
Connection, to prevent extraneous miscellaneous dirt from entering Bearing inner.
2. as described in claim 1 with the closed type plain radial bearing of radial lubrication agent storage tank, it is characterised in that: institute
Stating seal groove includes groove top platform, vertical side wall, slot bottom, sloped sidewall, the opening upwards of seal groove, one end of groove top platform with
The upper end of vertical side wall is connected, and the lower end of vertical side wall is connected with the side of slot bottom, and vertical side wall is located at the outside of bearing inner race,
To prevent sealing ring from slipping out of seal groove, the other side of slot bottom is connected with the lower end of sloped sidewall, and sloped sidewall is located at bearing
The inside of inner ring, in order to seal mounting groove, correspondingly, the sealing ring includes seam allowance inner cylinder face, vertical side, internal diameter circle
Cylinder, inclined side and outer diameter spherical surface, seam allowance inner cylinder face match with groove top platform, vertical side and vertical side wall phase
Match, inner diameter cylindrical face matches with slot bottom, and inclined side matches with sloped sidewall, the intrados of outer diameter spherical surface and bearing outer ring
Match, to be sealed to lubricant, while preventing sealing ring from slipping.
3. as claimed in claim 2 with the closed type plain radial bearing of radial lubrication agent storage tank, it is characterised in that: institute
It states and is additionally provided with lubricant storage chamber in bearing inner race, the upper end of the lubricant storage chamber is equipped with oil transportation hole, oil transportation hole and bearing
The lubricant reservoirs of the two sides of inner ring is connected to, with by lubricant reservoir storage or release lubricant, oil transportation hole be it is horn-like, with
Oil transportation hole is blocked convenient for resilient balls, resilient balls are equipped in lubricant storage chamber, to control the outflow of lubricant.
4. having the closed type plain radial bearing of radial lubrication agent storage tank as claimed in claim 2 or claim 3, feature exists
In: the axial horizontal space of the lubricant reservoir of the bearing inner race two sides is no less than the 20% of the width of bearing outer ring, lubricant
The outboard end of storage tank is not less than 3 millimeters at a distance from the end face of ipsilateral bearing outer ring, the cross section of the lubricant reservoir
Shape be slotted hole shape, the opening width of lubricant reservoir is not less than 3 millimeters, and the depth of lubricant reservoir is not less than 1 millimeter,
So that lubricant can uniform fold to the surface of bearing inner race.
5. having the closed type plain radial bearing of radial lubrication agent storage tank as claimed in claim 2 or claim 3, feature exists
In: the vertical side wall of the seal groove is vertical with the axis of bearing, and sloped sidewall and axis angle are 60 ° ~ 75 °, and groove top is flat
The width of platform is 1~1.5 millimeter, and the distance between vertical side wall of 2 seal grooves is equal to the width of bearing outer ring, so that close
Seal blocks lubricant in the gap between bearing outer ring and bearing inner race.
6. having the closed type plain radial bearing of radial lubrication agent storage tank as claimed in claim 2 or claim 3, feature exists
In: the diameter in the lubricant injection hole is not more than the opening width of lubricant reservoir.
7. having the closed type plain radial bearing of radial lubrication agent storage tank as claimed in claim 2 or claim 3, feature exists
In: the seam allowance inner cylinder face and seal groove groove top platform of the sealing ring are to be interference fitted, 2 ~ 3 millimeters of magnitude of interference；Internal diameter circle
Cylinder and seal groove slot bottom are to be interference fitted, 2 ~ 4 millimeters of magnitude of interference；Outer diameter spherical surface and outer ring Internal Spherical Surface are interference fit, interference
2 millimeters of amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821107193.0U CN208474322U (en) | 2018-07-13 | 2018-07-13 | Closed type plain radial bearing with radial lubrication agent storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821107193.0U CN208474322U (en) | 2018-07-13 | 2018-07-13 | Closed type plain radial bearing with radial lubrication agent storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208474322U true CN208474322U (en) | 2019-02-05 |
Family
ID=65210606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821107193.0U Expired - Fee Related CN208474322U (en) | 2018-07-13 | 2018-07-13 | Closed type plain radial bearing with radial lubrication agent storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208474322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879423A (en) * | 2021-01-08 | 2021-06-01 | 洛阳Lyc轴承有限公司 | Joint bearing for rail vehicle vibration test bed and service life calculation method thereof |
-
2018
- 2018-07-13 CN CN201821107193.0U patent/CN208474322U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879423A (en) * | 2021-01-08 | 2021-06-01 | 洛阳Lyc轴承有限公司 | Joint bearing for rail vehicle vibration test bed and service life calculation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 Termination date: 20200713 |
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| CF01 | Termination of patent right due to non-payment of annual fee |