CN112460149A - Sealing structure for bearing lubrication - Google Patents
Sealing structure for bearing lubrication Download PDFInfo
- Publication number
- CN112460149A CN112460149A CN202011466088.8A CN202011466088A CN112460149A CN 112460149 A CN112460149 A CN 112460149A CN 202011466088 A CN202011466088 A CN 202011466088A CN 112460149 A CN112460149 A CN 112460149A
- Authority
- CN
- China
- Prior art keywords
- bearing
- grease
- groove
- lubrication according
- lubrication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6622—Details of supply and/or removal of the grease, e.g. purging grease
-
- 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
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6607—Retaining the grease in or near the bearing
-
- 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
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6629—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
-
- 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
- F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
-
- 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
-
- 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
-
- 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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a sealing structure for bearing lubrication, which comprises a bearing seat for mounting a bearing and an outer baffle ring for preventing lubricating grease from splashing outwards, wherein the bearing seat is provided with at least two inner grease storage chambers distributed along the circumferential direction, the outer baffle ring is provided with at least two outer grease storage chambers distributed along the circumferential direction, a rib plate is arranged between any two adjacent inner grease storage chambers and any two adjacent outer grease storage chambers, the rib plate in the bearing seat is provided with a first through groove for allowing the lubricating grease to enter the bearing, and the bearing seat is also provided with a grease injection port and a first grease injection channel communicated with the grease injection port and the first through groove. The sealing structure for bearing lubrication can realize continuous supply of base oil to the rolling bearing, thereby effectively solving the problem of poor lubrication of the large bearing in the high-speed motor, being beneficial to prolonging the service life of the bearing, realizing less maintenance of the bearing and even being free of maintenance.
Description
Technical Field
The invention relates to the technical field of bearing lubrication, in particular to a sealing structure for bearing lubrication.
Background
The bearing is an important part of the motor and is mainly used for supporting the motor rotor to ensure normal and stable high-speed rotation of the motor rotor, and the running state of the bearing directly influences the normal operation of the motor. Good lubrication of the bearing needs to be ensured by a proper lubrication sealing configuration, and is particularly important for lubricating a roller large bearing by motor grease running at high speed.
In the prior art, an inner bearing cover and an outer bearing cover of a bearing are respectively provided with an inner ring-shaped grease storage chamber and an outer ring-shaped grease storage chamber, however, lubricating grease in the ring-shaped grease storage chamber is unstable due to the shearing dragging effect of the bearing in operation, and a stable grease storage wall cannot be established because the lubricating grease on the upper part of the ring-shaped grease storage chamber is easy to collapse at high temperature, so that the lubricating grease in the grease storage chamber cannot be effectively attached to and conducted with the side surface of the bearing, and thus, base oil cannot be continuously supplied to the bearing, and good lubrication of the bearing cannot be ensured.
Therefore, how to avoid the problem that the base oil cannot be continuously supplied to the bearing, which leads to the failure of ensuring good lubrication of the bearing, is a technical problem that needs to be solved currently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a sealing structure for bearing lubrication, which can realize continuous supply of base oil to a rolling bearing, thereby effectively solving the problem of poor lubrication of a large bearing in a high-speed motor and being beneficial to prolonging the service life of the bearing.
In order to achieve the purpose, the invention provides a sealing structure for bearing lubrication, which comprises a bearing seat for mounting a bearing and an outer baffle ring for preventing lubricating grease from splashing outwards, wherein the bearing seat is provided with at least two inner grease storage chambers distributed along the circumferential direction, the outer baffle ring is provided with at least two outer grease storage chambers distributed along the circumferential direction, a rib plate is arranged between any two adjacent inner grease storage chambers and any two adjacent outer grease storage chambers, the rib plate in the bearing seat is provided with a first through groove for allowing the lubricating grease to enter the bearing, and the bearing seat is further provided with a grease injection port and a first grease injection channel communicated with the grease injection port and the first through groove.
Optionally, the bearing seat further comprises a solid block arranged in the bearing seat and close to the top of the bearing seat.
Optionally, the solid block is provided with a second through groove for allowing grease to enter the bearing, and the bearing seat is further provided with a second grease injection passage communicated with the grease injection port and the second through groove.
Optionally, the first through groove is circumferentially spaced 180 ° from the second through groove.
Optionally, all the inner grease storage chambers, all the rib plates and the solid blocks in the bearing seat are integrally formed by a milling cutter.
Optionally, the bearing further comprises an arc-shaped grease discharging port which is arranged at the lower part of the inner rib of the outer grease storage chamber and used for discharging lubricating grease in the bearing.
Optionally, the number of the arc-shaped grease discharging ports is two, and the two arc-shaped grease discharging ports are symmetrically distributed about a central axis of the cross section of the outer baffle ring.
Optionally, all the outer grease storage chambers, all the arc-shaped grease discharge ports and all the rib plates in the outer retaining ring are integrally formed by milling.
Optionally, the bearing further comprises an outer oil seal fixed on the outer side of the bearing, and the outer oil seal and the outer retainer ring form a labyrinth grease discharging passage for discharging redundant grease.
Optionally, the bearing seat further comprises an outer bearing cover fixedly connected with the bearing seat through a bolt, and a waste grease collecting cavity communicated with the labyrinth grease discharging channel and used for collecting waste grease discharged by the labyrinth grease discharging channel is arranged in the outer bearing cover.
Compared with the background art, the sealing structure for bearing lubrication provided by the embodiment of the invention comprises a bearing seat and an outer baffle ring, wherein the bearing seat is used for mounting a bearing, the outer baffle ring is used for preventing lubricating grease in the bearing from splashing outwards, the bearing seat is provided with at least two inner grease storage chambers distributed along the circumferential direction, the outer baffle ring is provided with at least two outer grease storage chambers distributed along the circumferential direction, a rib plate is arranged between any two adjacent inner grease storage chambers, and a rib plate is also arranged between any two adjacent outer grease storage chambers; furthermore, a rib plate in the bearing seat is provided with a first through groove, the first through groove is used for allowing lubricating grease to enter the bearing, the bearing seat is further provided with a grease injection port and a first grease injection channel, and the first grease injection channel is communicated with the grease injection port and the first through groove. According to the sealing structure for bearing lubrication provided by the embodiment of the invention, on one hand, the rib plates are arranged between the adjacent inner grease storage chambers and the adjacent outer grease storage chambers, so that the unstable condition of lubricating grease caused by the circumferential dragging action of the bearing can be reduced when the bearing operates, and the stable establishment of the lubricating walls of the inner grease storage chambers and the outer grease storage chambers at two sides of the bearing is ensured, so that the lubricating grease can be tightly attached and communicated with the side edges of the bearing, the base oil can be continuously supplied to the bearing, and the good lubrication of the bearing can be further ensured; on the other hand, new lubricating grease injected from a grease injection port of the bearing seat can directly enter the bearing through the first grease injection channel and the first through groove, so that the bearing is well lubricated. The arrangement mode can realize continuous supply of the base oil to the rolling bearing, thereby effectively solving the problem of poor lubrication of the large bearing in the high-speed motor, being beneficial to prolonging the service life of the bearing, realizing less maintenance of the bearing and even being free of maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic assembly diagram of a seal structure for bearing lubrication provided by an embodiment of the present invention;
FIG. 2 is a schematic view of the internal structure of the bearing seat of FIG. 1;
fig. 3 is a schematic view of an internal structure of the outer baffle ring in fig. 1.
Wherein:
1-rotating shaft, 2-outer oil seal, 3-outer bearing cover, 4-outer baffle ring, 41-outer grease storage chamber, 42-arc grease discharging port, 5-bearing, 6-bearing seat, 61-inner grease storage chamber, 62-rib plate, 621-first through groove, 63-solid block, 631-second through groove, 64-grease injecting port, 65-first grease injecting channel, 66-second grease injecting channel, 7-inner baffle ring, 8-labyrinth grease discharging channel and 9-waste grease collecting cavity.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide a sealing structure for bearing lubrication, which can realize continuous supply of base oil to a rolling bearing, thereby effectively solving the problem of poor lubrication of a large bearing in a high-speed motor and being beneficial to prolonging the service life of the bearing.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
It should be noted that the following directional terms such as "upper end, lower end, left side, right side" and the like are defined based on the drawings of the specification.
Referring to fig. 1, 2 and 3, fig. 1 is a schematic assembly structure of a sealing structure for bearing lubrication according to an embodiment of the present invention; FIG. 2 is a schematic view of the internal structure of the bearing seat of FIG. 1; fig. 3 is a schematic view of an internal structure of the outer baffle ring in fig. 1. The direction of the arrow in fig. 1 is the flow direction of the grease.
As shown in fig. 1, the sealing structure for bearing lubrication provided by the embodiment of the present invention is mainly provided in a high-speed motor, and includes: the pivot 1, outer oil blanket 2, outer bearing cap 3, outer retaining ring 4, antifriction bearing 5, bearing frame 6 and interior retaining ring 7, wherein, antifriction bearing 5's inner circle is fixed in pivot 1, both sides carry out axial positioning through outer oil blanket 2 and interior retaining ring 7 respectively, bearing frame 6 is used for installing bearing 5, install in bearing frame 6 bearing 5 outer lane, through bolted connection outer bearing cap 3 and bearing frame 6, with compress tightly outer retaining ring 4 and make its axial installation on bearing frame 6, thereby realize the axial positioning of bearing 5 outer lane, outer retaining ring 4 is arranged in preventing that the lubricating grease in the bearing 5 outwards splashes.
Further, the bearing seat 6 is provided with at least two inner grease storage chambers 61 distributed along the circumferential direction, the outer baffle ring 4 is provided with at least two outer grease storage chambers 41 distributed along the circumferential direction, a rib plate 62 is arranged between any two adjacent inner grease storage chambers 61, and a rib plate 62 is also arranged between any two adjacent outer grease storage chambers 41; compared with the prior art in which a plurality of annular grease storage chambers are arranged along the circumferential direction at 360 degrees, the inner grease storage chambers 61 and the outer grease storage chambers 41 provided by the embodiment of the invention are arranged along the circumferential direction, and the rib plates 62 are arranged between two adjacent inner grease storage chambers 61 and between two adjacent outer grease storage chambers 41, so that the circumferential dragging action of the lubricating grease from the bearing 5 can be reduced to a certain extent, the stable establishment of the lubricating walls of the grease storage chambers at two sides is facilitated, the lubricating walls are tightly attached to and communicated with the side edges of the bearing 5, the base oil is continuously supplied to the bearing 5, and the good lubrication of the bearing 5 is ensured.
In order to solve the problem of poor later-stage online running lubrication of the traditional bearing 5, namely, a grease injection channel is arranged on a bearing seat and communicated with an inner grease storage chamber, new lubricating grease replenished in later-stage maintenance mainly enters the inner annular grease storage chamber through the single-point grease injection channel, and old grease in the grease storage chamber is squeezed into the bearing to participate in lubrication, so that the bearing 5 is poor in lubrication. In the embodiment of the present invention, the rib plate 62 in the bearing seat 6 is provided with a first through groove 621, the first through groove 621 is used for allowing grease to enter the bearing 5, the bearing seat 6 is further provided with a grease injection port 64 and a first grease injection channel 65, and the first grease injection channel 65 is communicated with the grease injection port 64 and the first through groove 621. It can be seen that when new grease is replenished in the later maintenance, the new grease injected from the grease injection port 64 of the bearing seat 6 can directly enter the bearing 5 through the first grease injection passage 65 and the first through groove 621, so that good lubrication of the bearing 5 is realized.
Therefore, according to the sealing structure for lubricating the bearing 5 provided by the embodiment of the invention, on one hand, the rib plate 62 is arranged between the adjacent inner grease storage chamber 61 and the adjacent outer grease storage chamber 41, so that the unstable condition of the lubricating grease caused by the circumferential dragging action of the bearing 5 can be reduced when the bearing 5 runs, and the stable establishment of the lubricating walls of the inner grease storage chamber and the outer grease storage chamber on two sides of the bearing 5 is ensured, so that the lubricating grease can be tightly attached and communicated with the side edge of the bearing 5, the base oil is continuously supplied to the bearing 5, and the good lubrication of the bearing 5 can be further ensured; on the other hand, new grease injected from the grease injection port 64 of the bearing housing 6 can directly enter the bearing 5 through the first grease injection passage 65 and through the first through groove 621, thereby achieving good lubrication of the bearing 5. The arrangement mode can realize continuous supply of the base oil to the rolling bearing 5, thereby effectively solving the problem of poor lubrication of the large bearing 5 in the high-speed motor, being beneficial to prolonging the service life of the bearing 5 and realizing less maintenance and even no maintenance of the bearing 5.
In addition, in order to prevent the phenomenon that the lubricating grease on the upper part of the original annular grease storage chamber is easy to collapse at high temperature, a solid block 63 is further arranged in the bearing seat 6, the solid block 63 is arranged in the bearing seat 6 at a position close to the top, and the solid block 63 can be specifically set to be an arc-shaped solid block 63. In the prior art, since the position of the solid block 63 is a part of the grease storage chamber, grease therein is prone to collapse at high temperature so that a stable lubricating wall cannot be established in the grease storage chamber, in the embodiment of the present invention, the solid block 63 is used to fill the grease storage chamber to prevent the grease from collapsing at high temperature in the upper portion of the grease storage chamber, so that the collapsed grease enters the bearing 5 again to be stirred, and the temperature of the bearing 5 rises abnormally.
As shown in fig. 2, in order to further ensure good lubrication of the bearing 5, a second through groove 631 is provided at a side of the solid block 63 close to the grease injection port 64, the second through groove 631 functions as the first through groove 621, and grease is supplied into the bearing 5 through the second through groove 631, and correspondingly, the bearing seat 6 is further provided with a second grease injection passage 66, and the second grease injection passage 66 is communicated with the grease injection port 64 and the second through groove 631.
In this way, when the new grease is replenished in the later maintenance, the new grease injected from the grease injection port 64 of the bearing housing 6 can directly enter the bearing 5 through the second grease injection passage 66 and the second through groove 631, thereby achieving good lubrication of the bearing 5.
Of course, according to actual requirements, the second through groove 631 and the first through groove 621 may be arranged at an interval of 180 ° in the circumferential direction, and the first through groove 621 and the second through groove 631 may include any structure that facilitates grease to enter the bearing 5, such as a U-shape and a long strip.
In this way, when new grease is replenished in the later maintenance, the new grease injected from the grease injection port 64 of the bearing seat 6 can directly enter the bearing 5 through the first grease injection channel 65 and the second grease injection channel 66 and the first through groove 621 and the second through groove 631 respectively, so that the bidirectional grease replenishment is realized, and the good lubrication of the bearing 5 is facilitated. Of course, according to the actual lubricating requirement, a grease injection channel and a through groove corresponding to the grease injection channel may be additionally provided, which is not particularly limited herein.
It should be noted that all the inner grease storage chambers 61, all the rib plates 62 and the solid blocks 63 arranged in the bearing seat 6 can be integrally formed by a milling cutter, which is beneficial to mass production, thereby improving the production efficiency.
In order to optimize the above embodiment, the grease discharging device further comprises an arc-shaped grease discharging port 42 arranged at the lower part of the inner rib of the outer grease storing chamber 41, and the arc-shaped grease discharging port 42 is used for discharging the grease in the bearing 5.
Specifically, since the grease in the bearing 5 is discharged through the gap between the outer oil seal 2 and the outer retainer ring 4, which is too large, the grease in the bearing 5 is discharged excessively, so that the lubricating effect of the bearing 5 is not good, and the gap is too small, which is not good for the discharge of the grease in the bearing 5, and the temperature in the bearing 5 is easily too high, the gap between the outer oil seal 2 and the outer retainer ring 4 can be effectively optimized by providing the arc-shaped grease discharge port 42, so that the grease in the bearing 5 can be discharged out of the bearing 5 on the premise of facilitating the lubrication of the bearing 5 and preventing the temperature in the bearing 5 from being too high.
As shown in fig. 3, preferably, the number of the arc-shaped grease discharging ports 42 is two, and the two arc-shaped grease discharging ports 42 are symmetrically distributed about a central axis of a cross section of the outer baffle ring 4. The arrangement mode can enhance the discharging capacity of lubricating grease in the bearing 5 so as to solve the problem of difficulty in grease discharging in the prior art, and meanwhile, excessive grease discharging like a centrifugal oil throwing and grease discharging structure can be avoided, so that the effective matching balance of temperature rise and lubrication of the bearing 5 is ensured.
It should be noted that the number of the arc-shaped grease discharging ports 42 can be increased to more than two, and the number and the size of the arc-shaped grease discharging ports 42 are not particularly limited, provided that the configuration is performed based on the setting principle of realizing optimal matching of temperature rise and lubrication.
That is to say, the above configuration can ensure that the bearing 5 can be continuously lubricated to keep good lubrication, and can discharge the redundant lubricating grease in the bearing 5 in time, so as to realize good balance between the lubrication and the temperature rise of the bearing 5 of the high-speed motor, thereby greatly prolonging the service life of the bearing 5, and realizing less maintenance or even no maintenance of the bearing 5.
On the basis of the above, the outer oil seal 2 fixed outside the bearing 5 and the outer retainer ring 4 are formed with a labyrinth grease discharging passage 8, and the labyrinth grease discharging passage 8 is used for discharging excess grease. In addition, be equipped with waste grease in the outer bearing cap 3 and collect chamber 9, waste grease collects chamber 9 and labyrinth grease discharging channel 8 intercommunication, and waste grease collects chamber 9 and is used for collecting the waste grease who is discharged by labyrinth grease discharging channel 8. Waste grease discharged through the labyrinth grease discharging passage 8 can be collected in the waste grease collecting chamber 9, and the waste grease collecting chamber 9 can be discharged to the outside through the waste grease discharging port after being full.
In summary, the direction of the oil path in the device is shown by the arrow in fig. 1, specifically, when new grease is replenished in the later maintenance, the new grease injected from the grease injection port 64 of the bearing seat 6 can directly enter the bearing 5 through the first grease injection passage 65 and the second grease injection passage 66 and through the first through groove 621 and the second through groove 631 respectively, and the lubricated grease can enter the waste grease collecting cavity 9 through the arc-shaped grease discharge port 42 and the labyrinth grease discharge passage 8 successively and then be discharged to the outside through the waste grease discharge port.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The sealing structure for bearing lubrication provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are provided only to help understand the concepts of the present invention and the core concepts thereof. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a seal structure for bearing lubrication, keeps off ring (4) outward including bearing frame (6) that are used for installing bearing (5) and are used for preventing that lubricating grease from outwards splashing, its characterized in that, bearing frame (6) are equipped with at least two interior fat room (61) that distribute along circumference, keep off ring (4) outward and be equipped with at least two and store up fat room (41) outward that distribute along circumference, and arbitrary two are adjacent interior fat room (61) and arbitrary two are adjacent all be equipped with gusset (62) between outer fat room (41), in bearing frame (6) gusset (62) are equipped with first through groove (621) that are used for supplying lubricating grease to get into in bearing (5), bearing frame (6) still be equipped with annotate fat mouth (64) and first notes fat passageway (65) that first through groove (621) communicate.
2. A sealing arrangement for bearing lubrication according to claim 1, further comprising a solid block (63) located within the bearing housing (6) near the top of the bearing housing (6).
3. The seal structure for bearing lubrication according to claim 2, wherein the solid block (63) is provided with a second through groove (631) for the entry of grease into the bearing (5), and the bearing housing (6) is further provided with a second grease injection passage (66) communicating with the grease injection port (64) and the second through groove (631).
4. A sealing structure for bearing lubrication according to claim 3, characterised in that the first through slot (621) is circumferentially 180 ° from the second through slot (631).
5. The seal structure for bearing lubrication according to claim 2, wherein all of the inner grease reservoir (61), all of the rib plates (62), and the solid block (63) in the bearing housing (6) are integrally formed by milling.
6. A seal structure for bearing lubrication according to any one of claims 1 to 5, further comprising an arcuate grease discharge port (42) provided in a lower portion of the inner rib of the outer grease reservoir (41) for discharging grease in the bearing (5).
7. The seal structure for bearing lubrication according to claim 6, wherein the number of the arc-shaped grease discharge ports (42) is two, and the two arc-shaped grease discharge ports (42) are symmetrically distributed about a central axis of a cross section of the outer retainer ring (4).
8. The seal structure for bearing lubrication according to claim 7, wherein all of the outer grease reservoir (41), all of the arcuate grease discharge ports (42), and all of the rib plates (62) in the outer retainer ring (4) are integrally formed by milling.
9. A sealing structure for bearing lubrication according to claim 6, further comprising an outer oil seal (2) for fixing to the outside of the bearing (5), the outer oil seal (2) and the outer retainer ring (4) forming a labyrinth grease discharge passage (8) for discharging excess grease.
10. The seal structure for bearing lubrication according to claim 9, further comprising an outer bearing cap (3) bolted to the bearing housing (6), wherein a waste grease collecting chamber (9) communicating with the labyrinth grease discharging passage (8) for collecting waste grease discharged from the labyrinth grease discharging passage (8) is provided in the outer bearing cap (3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011466088.8A CN112460149A (en) | 2020-12-14 | 2020-12-14 | Sealing structure for bearing lubrication |
| PCT/CN2021/125641 WO2022127375A1 (en) | 2020-12-14 | 2021-10-22 | Sealing structure for use in bearing lubrication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011466088.8A CN112460149A (en) | 2020-12-14 | 2020-12-14 | Sealing structure for bearing lubrication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112460149A true CN112460149A (en) | 2021-03-09 |
Family
ID=74804514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011466088.8A Pending CN112460149A (en) | 2020-12-14 | 2020-12-14 | Sealing structure for bearing lubrication |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112460149A (en) |
| WO (1) | WO2022127375A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412924A (en) * | 2021-12-15 | 2022-04-29 | 中电投新疆能源化工集团哈密有限公司 | Bearing waste oil discharging device |
| WO2022127375A1 (en) * | 2020-12-14 | 2022-06-23 | 中车株洲电机有限公司 | Sealing structure for use in bearing lubrication |
| WO2023242790A1 (en) * | 2022-06-16 | 2023-12-21 | Windfin B.V. | Bearing assembly lubricated with grease, in particular for wind turbines and cable transportation systems, comprising a grease collection and discharge system |
| CN117759631A (en) * | 2024-02-22 | 2024-03-26 | 上海骋海新能源科技有限公司 | bearing convenient to accurate filling lubricating grease |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB340121A (en) * | 1929-12-12 | 1930-12-24 | Gustaf Adolf Juhlin | Improvements in or relating to ball or roller bearings |
| CN202940675U (en) * | 2012-11-30 | 2013-05-15 | 南阳防爆集团股份有限公司 | Inner bearing cover for rolling bearing of motor |
| CN207864599U (en) * | 2018-01-15 | 2018-09-14 | 江苏磁谷科技股份有限公司 | A kind of bearing oil guard |
| CN108953386A (en) * | 2018-08-06 | 2018-12-07 | 中车株洲电机有限公司 | A kind of motor and its bearing lubrication sealing structure |
| CN111288152A (en) * | 2018-12-07 | 2020-06-16 | 南京高速齿轮制造有限公司 | Bearing lubricating device |
| CN112460149A (en) * | 2020-12-14 | 2021-03-09 | 中车株洲电机有限公司 | Sealing structure for bearing lubrication |
-
2020
- 2020-12-14 CN CN202011466088.8A patent/CN112460149A/en active Pending
-
2021
- 2021-10-22 WO PCT/CN2021/125641 patent/WO2022127375A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022127375A1 (en) * | 2020-12-14 | 2022-06-23 | 中车株洲电机有限公司 | Sealing structure for use in bearing lubrication |
| CN114412924A (en) * | 2021-12-15 | 2022-04-29 | 中电投新疆能源化工集团哈密有限公司 | Bearing waste oil discharging device |
| WO2023242790A1 (en) * | 2022-06-16 | 2023-12-21 | Windfin B.V. | Bearing assembly lubricated with grease, in particular for wind turbines and cable transportation systems, comprising a grease collection and discharge system |
| CN117759631A (en) * | 2024-02-22 | 2024-03-26 | 上海骋海新能源科技有限公司 | bearing convenient to accurate filling lubricating grease |
| CN117759631B (en) * | 2024-02-22 | 2024-04-26 | 上海骋海新能源科技有限公司 | Bearing convenient to accurate filling lubricating grease |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022127375A1 (en) | 2022-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112460149A (en) | Sealing structure for bearing lubrication | |
| CN211082551U (en) | Novel automobile-used bearing of car | |
| WO2019072050A1 (en) | Dual-bearing structure for motor having dual-lubrication system | |
| CN111120389A (en) | Self-circulation thin oil lubricating bearing body of vertical pump | |
| CN213776107U (en) | Sealing structure for bearing lubrication | |
| CN209990780U (en) | Tapered roller bearing with seal structure | |
| CN209385497U (en) | A kind of floating bearing of turbocharger | |
| CN216751438U (en) | Wet-type motor bearing cooling structure | |
| CN207039388U (en) | More cooling duct cooling duct motors | |
| CN214459392U (en) | Oscillating wheel and oscillating road roller | |
| JPH09177797A (en) | Shaft box structure | |
| CN217362746U (en) | Electric machine | |
| CN221227289U (en) | Bearing supporting structure of motor rotating shaft | |
| CN218817648U (en) | Novel double-row tapered roller bearing | |
| CN219953957U (en) | Wear-resistant cylindrical roller bearing | |
| CN217002737U (en) | Bearing oil feeding structure and bearing lubricating system based on same | |
| CN217356442U (en) | Novel oil throwing structure for generator bearing | |
| CN216390670U (en) | Motor for lubricating bearing by liquid oil | |
| JPH102227A (en) | Floating bearing structure for supercharger | |
| CN216158122U (en) | Angular contact ball bearing outer ring with lubricating effect | |
| CN114439856B (en) | Bearing lubricating device and method | |
| CN214534036U (en) | Dynamic lubricating roller bearing structure | |
| CN214506758U (en) | Efficient permanent magnet motor equipment based on oil cooling | |
| CN220910465U (en) | Oil retainer structure with transverse pre-baffle | |
| CN218294199U (en) | Anti-abrasion automobile hub bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |