CN112431849B - Dustproof ball bearing with lubricating assembly - Google Patents
Dustproof ball bearing with lubricating assembly Download PDFInfo
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- CN112431849B CN112431849B CN202011085182.9A CN202011085182A CN112431849B CN 112431849 B CN112431849 B CN 112431849B CN 202011085182 A CN202011085182 A CN 202011085182A CN 112431849 B CN112431849 B CN 112431849B
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- dustproof
- oil
- retainer
- passage
- oiling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/664—Retaining the liquid in or near the bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/664—Retaining the liquid in or near the bearing
- F16C33/6655—Retaining the liquid in or near the bearing in a reservoir in the sealing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/783—Details of the sealing or parts thereof, e.g. geometry, material of the mounting region
Abstract
The invention relates to the field of bearings, and discloses a dustproof ball bearing with a lubricating assembly, which comprises an outer ring, an inner ring, a rolling body positioned between the outer ring and the inner ring, and a retainer connected to the rolling body, wherein the retainer comprises a first retainer body positioned on one side of the rolling body and a second retainer body positioned on the other side of the rolling body, the first retainer body and the second retainer body have the same structure and respectively comprise a retaining part used for wrapping the rolling body and a connecting part used for connecting adjacent retaining parts, the connecting parts of the first retainer body and the second retainer body are connected through a pin shaft, and the retainer is connected with a dustproof oiling assembly.
Description
Technical Field
The invention relates to the field of bearings, in particular to a dustproof ball bearing with a lubricating assembly.
Background
The ball bearing is used as one of the most applied bearings, the bearing lubrication on the market at present is mainly performed on the ball bearing through lubricating grease or lubricating oil, after the lubricating oil or the lubricating grease is evaporated, the rolling body, the bearing inner ring and the bearing outer ring are easily burnt, the service life of the bearing is influenced, the bearing needs to work under different working conditions, a dustproof sealing cover is arranged between the outer ring and the inner ring of the bearing, the dustproof sealing cover mainly has the effect of preventing external dust or magazines from entering the raceway, the abrasion of the raceway or the rolling body is caused, the service life of the bearing is shortened, the ball bearing with the dustproof sealing cover is provided, when the lubricating oil or the lubricating grease is added, the dustproof sealing cover needs to be detached, the detachment process is troublesome, and dust and impurities are easy to enter the ball bearing.
Disclosure of Invention
The invention provides a dustproof ball bearing with a lubricating component, aiming at the defect that dust or magazines are easy to enter the bearing because the dustproof sealing cover needs to be detached when lubricating oil is added to the bearing with the dustproof sealing cover in the prior art.
In order to solve the technical problem, the invention is solved by the following technical scheme: a dustproof ball bearing with a lubricating component comprises an outer ring, an inner ring, a rolling body and a retainer, wherein the rolling body is positioned between the outer ring and the inner ring, the retainer is connected to the rolling body and comprises a first retainer body positioned on one side of the rolling body and a second retainer body positioned on the other side of the rolling body, the first retainer body and the second retainer body are of the same structure and respectively comprise a retaining part used for wrapping the rolling body and a connecting part used for connecting adjacent retaining parts, the connecting parts of the first retainer body and the second retainer body are connected through a pin shaft, the retainer is connected with a dustproof oiling component, the dustproof oiling component comprises a dustproof part, an oiling part and an oil storage part, the oiling part and the oil storage part are both convexly arranged on the dustproof part, the dustproof part is annularly positioned between the outer ring and the inner ring, a clamping counter bore capable of being clamped with the pin shaft is arranged on the oil storage part, an oil storage cavity is arranged in the oil storage part, an oil injection passage is arranged on the oiling part, and an oil passage is arranged on the dustproof part, the oil storage chamber is connected with the oil storage chamber through the oil passage, lubricating oil is arranged in the oil storage chamber, the oil passage and the oil injection passage, a clamping through hole is formed in the retaining portion, and the clamping through hole is clamped with the oil injection portion.
Adopt above-mentioned scheme, connect the dustproof oiling subassembly on the holder, the dust-proof part through dustproof oiling subassembly can carry out dustproof to bearing inside, the oil storage portion that links to each other with the dust-proof part can be used to the oil storage still can play the effect of support to the dust-proof part, and the joint through-hole of oiling portion and holder is connected, can be used to play the effect of oiling to the rolling element.
Preferably, the oil passage is arranged on one side, away from the oil filling portion, of the dust prevention portion, a sealing cover is connected to the oil passage in a sliding mode, a piston rod is connected to the sealing cover, the piston rod is connected to the oil filling passage in a sliding mode, and the sealing cover can move in the axial direction of the oil passage.
By adopting the proposal, the piston rod has the function of injecting a certain amount of lubricating oil into the retainer,
preferably, the piston rod is sleeved with a rubber piston sleeve.
By adopting the scheme, the piston sleeve can ensure good sealing performance.
Preferably, the inner wall of the oil injection passage is in an inclined conical shape, the piston sleeve is in a circular truncated cone shape, when the sealing cover is not moved, the side face of the piston sleeve is not abutted to the inner wall of the oil injection passage, lubricating oil can pass through a gap between the piston sleeve and the oil injection passage, when the sealing cover is moved, the side face of the piston sleeve is abutted to the inner wall of the oil injection passage, and the sealing cover continues to move to drive the lubricating oil in the oil injection passage to enter the retainer in an accelerated manner.
By adopting the scheme, the conical oil injection channel is matched with the circular truncated cone-shaped piston sleeve to push the sealing cover, so that the piston sleeve can be driven to abut against the inner side wall of the oil injection channel, and quantitative lubricating oil is ensured to enter the retainer.
Preferably, the piston rod comprises a first connecting section connected with the sealing cover, a second connecting section used for sleeving the piston sleeve, a third connecting section with the diameter smaller than that of the second connecting section and a sealing section used for sealing the outlet of the oil injection passage, the sealing section is spherical, when the sealing cover is not moved, the sealing section is abutted against the outlet of the oil injection passage, and when the sealing cover is moved, the sealing section is separated from the outlet of the oil injection passage.
Adopt above-mentioned scheme, when not promoting the closing cap, the piston bush does not say inside wall butt with the oiling, thereby it has can get into between piston bush and the seal section to lubricate, the seal section also can say the export to the oiling and carry out the butt, promote one section distance back of closing cap, the piston bush carries out the butt with the oiling way side, thereby the piston bush seals the oiling way inner wall this moment, seal section also says the export with the oiling and separates this moment, continue to promote originally lie in the lubricating oil between piston bush and the seal section in being pushed into the holder, the closing cap resets the back, lubricating oil gets into between piston bush and the seal section again, the seal section is sealed the oiling again and is said the export.
Preferably, a sunk groove is formed in the outlet of the oil injection passage, and the sealing section is located in the sunk groove.
By adopting the scheme, the sink groove has the advantages that when the sealing cover is prevented from being pushed, the diameter of the sealing section enters the retainer through the clamping through hole, and the abutting of the sealing section and the rolling body is avoided.
Preferably, the sealing cover is provided with a one-way oil filling valve, the sealing cover is provided with a mounting hole communicated with the oil passage, the one-way oil filling valve comprises a valve body clamped in the mounting hole and a one-way valve plate positioned in the valve body, air and oil can only enter the oil passage from the outside, and the oil or the air in the dustproof part can not be discharged through the one-way oil filling valve.
Adopt above-mentioned scheme, one-way oil filling valve's effect lies in, when the lubricating oil in oil storage chamber, cross the oil duct and the notes oil duct was not enough, carries out the oiling in the oilcan accessible one-way oil filling valve to dustproof oiling subassembly, and when dustproof oiling subassembly internal gas pressure was less than external atmospheric pressure, air accessible one-way oil filling valve got into in the dustproof oiling subassembly.
Preferably, the dustproof portion is convexly provided with a dustproof ring, the two ends of the outer ring are provided with a first dustproof groove, the inner diameter of the first dustproof groove is equal to the inner diameter of the outer ring, the two ends of the inner ring are provided with a second dustproof groove, the outer diameter of the second dustproof groove is equal to the outer diameter of the inner ring, the outer diameter of the dustproof ring is in clearance fit with the first dustproof groove, and the inner diameter of the dustproof ring is in clearance fit with the second dustproof groove.
By adopting the scheme, the first dust-proof groove and the second dust-proof groove are matched with the dust-proof ring, so that a better dust-proof effect can be achieved.
Preferably, a spring is arranged in the oil passage, one end face of the spring is abutted with the bottom face of the oil passage, and the other end face of the spring is abutted with the sealing cover.
By adopting the scheme, after the sealing cover is pushed, the spring is in a compressed state, and after the sealing cover is loosened, the sealing cover automatically resets under the action of the spring.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: the dustproof part of the dustproof oiling component can be used for preventing dust in the bearing, the oil storage part connected with the dustproof part can be used for storing oil and supporting the dustproof part, the oiling part is connected with the clamping through hole of the retainer and can be used for oiling the rolling element, when the sealing cover is not pushed, the piston sleeve is not abutted against the inner side wall of the oiling channel so as to lubricate the part which can enter between the piston sleeve and the sealing section, the sealing section can also be abutted against the outlet of the oiling channel, after the sealing cover is pushed for a certain distance, the piston sleeve is abutted against the side surface of the oiling channel so that the piston sleeve seals the inner wall of the oiling channel at the moment, the sealing section is separated from the outlet of the oiling channel at the moment, the lubricating oil originally positioned between the piston sleeve and the sealing section is continuously pushed into the retainer, the spring is in a compression state, the sealing cover is loosened, and the sealing cover drives the sealing cover to reset under the action of the spring, after the sealing cover is reset, the lubricating oil enters between the piston sleeve and the sealing section again, and the sealing section seals the outlet of the oil injection passage again.
Drawings
FIG. 1 is a schematic view of an overall construction of a dust ball bearing with a lubrication assembly;
FIG. 2 is a cross-sectional view of a dust ball bearing with a lubrication assembly;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is an exploded view of a dust ball bearing assembly with a lubrication assembly;
FIG. 5 is a schematic view of a one-way fill valve configuration.
The names of the parts indicated by the numerical references in the above figures are as follows: 1. an outer ring; 2. an inner ring; 3. a rolling body; 4. a cage; 5. a first frame body; 6. a second frame body; 7. a holding section; 8. a connecting portion; 9. a pin shaft; 10. a dust-proof portion; 11. an oiling part; 12. an oil storage section; 13. a dust ring; 14. a first dust-proof groove; 15. a dust-proof groove II; 16. clamping the counter bore; 17. an oil storage chamber; 18. an oil injection passage; 19. a oil passage; 20. sealing the cover; 21. a piston rod; 22. a first connecting section; 23. a second connecting section; 24. a connecting section III; 25. sinking a groove; 26. a sealing section; 27. a piston sleeve; 28. a spring; 29. a one-way oil injection valve; 30. a valve body; 31. a one-way valve plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The embodiment is as follows:
a dustproof ball bearing with a lubricating component is disclosed, and firstly referring to figures 1 to 4, the dustproof ball bearing comprises an outer ring 1, an inner ring 2, a plurality of rolling bodies 3 positioned between the outer ring 1 and the inner ring 2, and a retainer 4 connected with the rolling bodies 3, wherein the retainer 4 comprises a first retainer 5 positioned on one side of the rolling bodies 3 and a second retainer 6 positioned on the other side of the rolling bodies 3, the first retainer 5 and the second retainer 6 both have the same structure and respectively comprise an arc-shaped retaining part 7 used for wrapping the rolling bodies 3 and a connecting part 8 used for connecting the adjacent retaining parts 7, the connecting part 8 is provided with a pin shaft 9 hole, the pin shaft 9 holes of the connecting parts 8 of the first retainer 5 and the second retainer 6 are oppositely arranged, the pin shafts 9 are simultaneously clamped in the pin shaft 9 holes of the first retainer 5 and the second retainer 6, the side surface of the pin shaft 9 is provided with a ring groove used for clamping the pin shaft 9 holes, and the dustproof oiling component is connected on the retainer 4, the side of the first frame body 5, which is far away from the second frame body 6, and the side of the second frame body 6, which is far away from the first frame body 5, are respectively connected with a dustproof oiling component, the dustproof oiling component comprises a dustproof part 10, an oiling part 11 and an oil storage part 12, the dustproof part 10 is annular, the side surface of the dustproof part 10 is convexly provided with a circle of annular dustproof ring 13, the side of the dustproof ring 13, which is far away from the retainer 4, is flush with the side of the dustproof part 10, which is far away from the retainer 4, the outer diameter of the dustproof ring 13 is larger than the outer diameter of the dustproof part 10, the inner diameter of the dustproof ring 13 is smaller than the inner diameter of the dustproof part 10, two end surfaces of the outer ring 1 are provided with a dustproof groove I14, the inner diameter of the dustproof groove I14 is equal to the inner diameter of the outer ring 1, two end surfaces of the inner ring 2 are provided with dustproof grooves II 15, the outer diameter of the dustproof groove II 15 is equal to the outer diameter of the inner ring 2, the two end surfaces of the inner ring 2 are step, the dustproof ring 13 is positioned in the dustproof groove I14, the inner diameter part of the dust ring 13 is positioned in the second dust groove 15, the outer diameter of the dust ring 13 is in clearance fit with the side wall of the first dust groove 14, and the inner diameter of the dust ring 13 is in clearance fit with the side wall of the second dust groove 15.
The oil injection part 11 and the oil storage part 12 are both arranged at the same side with the dust-proof part 10 in a protruding manner, each dust-proof part 10 is provided with a plurality of oil injection parts 11 and oil storage parts 12 in a protruding manner, the number of the oil storage parts 12 is consistent with that of the connecting parts 8 of the retainers 4, the oil storage parts 12 are columnar, one sides of the oil storage parts 12 far away from the dust-proof part 10 are provided with clamping counter bores 16 which can be clamped with the pin shaft 9, the oil storage parts 12 of the two dust-proof oil injection components are respectively clamped with two ends of the pin shaft 9, oil storage cavities 17 are arranged in the oil storage parts 12, the oil injection parts 11 are internally provided with oil injection channels 18 in a tubular manner, one sides of the dust-proof parts 10 far away from the oil storage parts 12 are provided with oil passage 19, the oil storage cavities 17 are connected with the oil injection channels 18 through the oil passage 19, the retaining parts 7 are provided with clamping through holes, one ends of the oil injection parts 11 far away from the dust-proof parts 10 are clamped with the clamping through holes, but the oil injection parts 11 are not abutted against the rolling bodies 3, the oil storage cavities 17, lubricating oil passage 19 and the lubricating oil injection channels 18 are additionally provided with lubricating oil, the oil passing channel 19 is connected with an annular sealing cover 20 in a sliding mode, a plurality of piston rods 21 are arranged on one side face of the sealing cover 20 in a protruding mode, each piston rod 21 is located in an oil filling channel 18 of the oil filling portion 11, each piston rod 21 sequentially comprises a first connecting section 22 integrally formed with the sealing cover 20, a second connecting section 23 with the diameter larger than the first connecting section 22 and a third connecting section 24 with the diameter smaller than the second connecting section 23, one end, far away from the dustproof portion 10, of the oil filling channel 18 is an outlet of the oil filling channel 18, an outlet of the oil filling channel 18 is provided with a sinking groove 25, the diameter of the sinking groove 25 is larger than that of the oil filling channel 18, one end, far away from the second connecting section 23, of the third connecting section 24 is provided with a ring groove, a sealing section 26 is clamped on the ring groove of the third connecting section 24, the sealing section 26 is spherical and provided with a clamping hole in the diameter direction, the clamping hole of the sealing section 26 is clamped with the ring groove of the third connecting section 24, the sealing section 26 is located in the sinking groove 25 and is abutted to the outlet of the oil filling channel 18, a rubber piston sleeve 27 is sleeved on the second connecting section 23 of the piston rod 21, the outer surface of the piston sleeve 27 is in a circular truncated cone shape, the inner wall of the oil filling channel 18 is in an inclined conical shape, the oil passing channel 19 is in an annular shape, the sealing cover 20 can move along the axial direction of the oil passing channel 19, when the sealing cover 20 is not moved, the sealing section 26 is abutted against the outlet of the oil filling channel 18, the side wall of the piston sleeve 27 is not abutted against the inner side wall of the oil filling channel 18, lubricating oil can pass through a gap between the piston sleeve 27 and the oil filling channel 18, when the sealing cover 20 is moved, the side surface of the piston sleeve 27 is abutted against the inner side wall of the oil filling channel 18 to form sealing, the sealing section 26 is separated from the outlet of the oil filling channel 18 and is not used for sealing the outlet of the oil filling channel 18, the sealing cover 20 continues to move to drive the lubricating oil positioned in the oil filling channel 18 and between the piston sleeve 27 and the sealing section 26 to accelerate to enter the retainer 4, and the lubricating oil is contacted with the rolling body 3 after passing through the clamping through hole, the spring 28 is arranged in the oil passing channel 19, the bottom surface of the oil passing channel 19 is provided with a plurality of positioning grooves, one end surface of the spring 28 is positioned on the bottom surface in the positioning grooves and abutted against, the other end surface of the spring 28 is abutted against the sealing cover 20, under the action of the spring 28, after the sealing cover 20 is pushed, the spring 28 is in a compressed state, after the sealing cover 20 is loosened, under the action of the spring 28, the sealing section 26 is abutted against the outlet of the oil injection channel 18 again, and the sealing section 26 also limits the sealing cover 20 to move out of the oil passing channel 19.
Set up on the closing cap 20 with the communicating mounting hole of oil duct 19, the joint has one-way oiling valve 29 in the mounting hole, combine fig. 5, one-way oiling valve 29 includes valve body 30 and the check valve piece 31 that is located valve body 30, valve body 30 and mounting hole interference joint, valve body 30 is the tubulose, it has two check valve body 30 to be located to open in valve body 30, two check valve body 30 are certain angle and the angle direction that should form is and keeps away from the setting of mounting hole opening direction, two check valve piece 31 one side are the state of butt each other, two check valve piece 31 opposite sides and valve body 30 integrated into one piece, one-way oiling valve 29 adopts rubber or silica gel material to make.
Claims (5)
1. A dustproof ball bearing with a lubricating assembly comprises an outer ring (1), an inner ring (2), a rolling body (3) positioned between the outer ring (1) and the inner ring (2) and a retainer (4) connected to the rolling body (3), wherein the retainer (4) comprises a first retainer body (5) positioned on one side of the rolling body (3) and a second retainer body (6) positioned on the other side of the rolling body (3), the first retainer body (5) and the second retainer body (6) have the same structure and respectively comprise a retaining part (7) used for wrapping the rolling body (3) and a connecting part (8) used for connecting the adjacent retaining parts (7), the connecting parts (8) of the first retainer body (5) and the second retainer body (6) are connected through a pin shaft (9), and the dustproof ball bearing is characterized in that the retainer (4) is connected with the dustproof oiling assembly, the dustproof oiling assembly comprises a dustproof part (10), an oiling part (11) and an oil storage part (12), the oiling part (11) and the oil storage part (12) are both convexly arranged on the dustproof part (10), the dustproof part (10) is annularly arranged between the outer ring (1) and the inner ring (2), the oil storage part (12) is provided with a clamping counter bore (16) which can be clamped with the pin shaft (9), the oil storage part (12) is internally provided with an oil storage cavity (17), the oiling part (11) is provided with an oiling channel (18), the dustproof part (10) is provided with an oil passage (19), the oil storage cavity (17) is connected with the oil storage cavity (17) through the oil passage (19), the oil storage cavity (17), the oil passage (19) and the oiling channel (18) are respectively internally provided with lubricating oil, the maintaining part (7) is provided with a clamping through hole, the clamping through hole is clamped with the oiling part (11), the oil passage (19) is arranged on one side, far away from the oiling part (11), of the dustproof part (10), the oil passage (19) is slidably connected with a sealing cover (20), and the sealing cover (20) is connected with a piston rod (21), the piston rod (21) is connected in the oil injection passage (18) in a sliding manner, the sealing cover (20) can move along the axial direction of the oil passage (19), a rubber piston sleeve (27) is sleeved on the piston rod (21), the inner wall of the oil injection passage (18) is in an inclined conical shape, the piston sleeve (27) is in a circular truncated cone shape, the piston rod (21) comprises a first connecting section (22) connected with the sealing cover (20), a second connecting section (23) used for sleeving the piston sleeve (27), a third connecting section (24) with a diameter smaller than that of the second connecting section (23) and a sealing section (26) used for sealing an outlet of the oil injection passage (18), the sealing section (26) is in a spherical shape, when the sealing cover (20) is not moved, the side surface of the piston sleeve (27) is not abutted against the inner wall of the oil injection passage (18), lubricating oil can pass through a gap between the piston sleeve (27) and the oil injection passage (18), and the outlet of the sealing section (26) is abutted against the oil injection passage (18), when the sealing cover (20) is moved, the sealing section (26) is separated from the outlet of the oil injection passage (18), the side surface of the piston sleeve (27) is abutted against the inner wall of the oil injection passage (18), and the sealing cover (20) continues to move to drive lubricating oil in the oil injection passage (18) to accelerate into the retainer (4).
2. The dustproof ball bearing with the lubricating assembly according to claim 1, wherein a sink groove (25) is formed at an outlet of the oil injection passage (18), and the sealing section (26) is located in the sink groove (25).
3. The dustproof ball bearing with the lubricating assembly according to claim 1, wherein the sealing cover (20) is provided with a one-way oil injection valve (29), the sealing cover (20) is provided with a mounting hole communicated with the oil passage (19), the one-way oil injection valve (29) comprises a valve body (30) clamped in the mounting hole and a one-way valve plate (31) located in the valve body (30), air and oil can only enter the oil passage (19) from the outside, and oil or air in the dustproof portion (10) cannot be discharged through the one-way oil injection valve (29).
4. The dustproof ball bearing with the lubricating assembly according to claim 1, wherein the dustproof portion (10) is convexly provided with a dustproof ring (13), two ends of the outer ring (1) are provided with first dustproof grooves (14), the inner diameter of the first dustproof groove (14) is equal to the inner diameter of the outer ring (1), two ends of the inner ring (2) are provided with second dustproof grooves (15), the outer diameter of the second dustproof groove (15) is equal to the outer diameter of the inner ring (2), the outer diameter of the dustproof ring (13) is in clearance fit with the first dustproof groove (14), and the inner diameter of the dustproof ring (13) is in clearance fit with the second dustproof grooves (15).
5. The dustproof ball bearing with lubricating assembly according to claim 1, characterized in that a spring (28) is arranged in the oil passage (19), one end face of the spring (28) is abutted with the bottom surface of the oil passage (19), and the other end face of the spring (28) is abutted with the cover (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011085182.9A CN112431849B (en) | 2020-10-12 | 2020-10-12 | Dustproof ball bearing with lubricating assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011085182.9A CN112431849B (en) | 2020-10-12 | 2020-10-12 | Dustproof ball bearing with lubricating assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112431849A CN112431849A (en) | 2021-03-02 |
| CN112431849B true CN112431849B (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011085182.9A Active CN112431849B (en) | 2020-10-12 | 2020-10-12 | Dustproof ball bearing with lubricating assembly |
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|---|---|---|---|---|
| CN113847338B (en) * | 2021-09-10 | 2023-11-03 | 淮南联合大学 | Vertical cross roller bearing |
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