CN210769876U - Oil lubrication bearing protector - Google Patents

Abstract

The utility model discloses an oil lubrication bearing protector, which comprises a bearing seat, a shaft, a movable ring, a static ring and a floating ring, wherein the movable ring is sleeved on the shaft and comprises a ring body and a flange disc which is integrally formed at one end of the ring body; quiet ring one end is provided with inlayer ring and outer ring, and quiet ring other end is the individual layer ring, and inlayer ring cup joints epaxial, and outer ring pegs graft on the bearing frame, and when the rotating ring was connected with quiet ring, the ring body was located between inlayer ring and the outer ring, be provided with the cross section on the flange and be square choked flow groove, the port of outer ring set up to with choked flow groove width assorted narrow limit, when the rotating ring was connected with quiet ring, during narrow limit inserted choked flow groove, and be clearance fit between narrow limit and the choked flow groove. The utility model provides high bearing protector's leakproofness realizes the effective sealing of bearing box, saves the plant maintenance cost, avoids lubricating oil to leak, avoids causing the pollution to work operational environment.

Description

Oil lubrication bearing protector

Technical Field

The utility model relates to a bearing protector technical field particularly, relates to an oil lubrication bearing protector.

Background

The bearing boxes of rotating equipment such as a pump, a fan, a transmission and the like have different sealing failure problems, the sealing failure causes the leakage of lubricating oil, the liquid level of the lubricating oil is reduced, the waste of the lubricating oil is further caused, the equipment maintenance cost is increased, and the pollution to the working environment is also caused. For the bearing with the lubrication mode for splash lubrication, some have avoided the bearing box to take place the bearing protector of lubricating oil leakage on the market, but the leakproofness of bearing protector still is not enough, after using for a period, still can appear lubricating oil leakage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an oil lubrication bearing protector, its leakproofness that can improve bearing protector realizes the effective sealing of bearing box, saves the plant maintenance cost, avoids lubricating oil to leak, avoids causing the pollution to operational work environment.

The embodiment of the utility model discloses a realize through following technical scheme:

an oil lubrication bearing protector comprises a bearing seat, a shaft, a movable ring, a static ring and a floating ring, wherein the movable ring is sleeved on the shaft and comprises a ring body and a flange disc which is integrally formed at one end of the ring body; one end of the static ring is provided with an inner ring and an outer ring, the other end of the static ring is a single-layer ring, the inner ring is sleeved on the shaft, the outer ring is inserted on the bearing seat, the inner ring is provided with a floating ring groove II, when the movable ring is connected with the static ring, the ring body is positioned between the inner ring and the outer ring, the floating ring groove I is over against the floating ring groove II, and the floating ring groove I and the floating ring groove II form dynamic seal through the floating ring,

be provided with the cross section on the flange and be square choked flow groove, this choked flow groove is located the flange and is close to one side of floating ring groove I, the port of outer ring sets up to the narrow limit with choked flow groove width assorted, and when the rotating ring was connected with quiet ring, the narrow limit was inserted in the choked flow groove, and was clearance fit between narrow limit and the choked flow groove.

In one embodiment, the outer wall of the ring body of the movable ring is provided with an oil storage groove, and the cross section of the oil storage groove is V-shaped.

In one embodiment, the rotating shaft further comprises a rotating ring sealing ring, a rotating ring sealing ring groove is formed in the inner wall of the ring body of the rotating ring, the rotating ring sealing ring is arranged in the rotating ring sealing ring groove, the rotating ring is sleeved on the shaft, and the rotating ring is fixed with the shaft through the rotating ring sealing ring and forms static seal.

In one embodiment, the bearing seat further comprises a static ring sealing ring, a static ring sealing ring groove is formed in the outer wall of the outer layer ring, the static ring sealing ring is arranged in the static ring sealing ring groove, and the static ring forms static seal with the bearing seat through the static ring sealing ring.

In one embodiment, the inner wall of the single-layer ring is provided with a dirt collecting groove along the circumferential direction.

In one embodiment, the sewage treatment system further comprises sewage draining holes distributed along the sewage collecting tank.

In one embodiment, a gap is arranged between the outer edge of the flange disc of the movable ring and the bearing seat, a gap is also arranged between the movable ring and the static ring, and the movable ring and the shaft are in transition fit; the minimum inner diameter of the static ring is larger than the diameter of the shaft, and the outer layer ring of the static ring is in transition fit with the bearing seat.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

1. the embodiment of the utility model provides a through setting up the choke groove, set the clearance between rotating ring and the quiet ring to the clearance that has many times 90 turns, can effectively reduce the kinetic energy of the lubricating oil that gets into the clearance, avoid lubricating oil to leak, realized the effective sealing of lubricating oil, improved bearing protector's leakproofness, realized the effective sealing of bearing box, saved the equipment maintenance cost, avoided lubricating oil to leak, avoided causing the pollution to operational environment. And meanwhile, external pollutants are prevented from entering the bearing through the zigzag gap.

2. The embodiment of the utility model provides an in the oil storage tank for being the oil storage tank of V style of calligraphy through setting up the cross section, be convenient for adhere to the lubricating oil gathering on the rotating ring to the oil storage tank, and then in the clearance backward flow of driven ring and quiet ring the bearing box, and then avoided adhering to the lubricating oil on ring body surface to the rotating ring and the flow of the clearance depths of quiet ring, further guaranteed bearing protector's leakproofness.

3. The embodiment of the utility model provides a through setting up the floating ring and realized sealed between rotating ring and the quiet ring promptly, effectively prevented the breathing phenomenon of bearing chamber again, avoided the external air admission bearing chamber that has vapor and made lubricating oil inefficacy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of an embodiment of the present invention in use;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic structural view of a rotating ring according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a stationary ring in an embodiment of the present invention.

Icon:

1-a bearing seat, 2-a movable ring, 21-a movable ring sealing ring, 22-a flow resistance groove, 23-an oil storage groove, 24-a floating ring groove I, 3-a static ring, 31-a static ring sealing ring, 32-a dirt collecting groove, 33-a sewage discharge hole, 34-a floating ring groove II, 35-a second belt wheel, 4-a floating ring and 5-a shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 to 4, fig. 1 to 4 provide an oil lubrication bearing protector.

An oil lubrication bearing protector comprises a bearing seat 1, a shaft 5, a movable ring 2, a static ring 3 and a floating ring 4, wherein the movable ring 2 is sleeved on the shaft, the movable ring 2 comprises a ring body and a flange disc which is integrally formed at one end of the ring body, a floating ring groove I24 is arranged on the inner wall of the ring body of the movable ring 2, and the floating ring groove I24 and the flange disc are respectively positioned at two ends of the ring body; one end of the static ring 3 is provided with an inner ring and an outer ring, the other end of the static ring 3 is a single-layer ring, the inner ring is sleeved on the shaft 5, the outer ring is inserted on the bearing seat 1, a floating ring groove II 34 is arranged on the inner ring, when the moving ring 2 is connected with the static ring 3, the ring body is positioned between the inner ring and the outer ring, the floating ring groove I24 is over against the floating ring groove II 34, and the floating ring groove I24 and the floating ring groove II 34 form dynamic seal through the floating ring 4,

be provided with the choked flow groove 22 that the cross section is square on the flange, this choked flow groove 22 is located one side that the flange is close to floating ring groove I24, the port of outer ring sets up to the narrow limit with choked flow groove 22 groove width assorted, and when the rotating ring was connected with the quiet ring, the narrow limit was inserted in choked flow groove 22, and was clearance fit between narrow limit and the choked flow groove 22.

The bearing protector in this embodiment is applicable to the bearing that the lubricated mode is splash lubrication, and the outer ring of quiet ring 3 and bearing frame 1 transition fit to form static seal between quiet ring 3 and bearing frame 1 through quiet ring seal 31, quiet ring 3 cup joints on axle 5, and the minimum internal diameter of quiet ring 3 is greater than axle 5 moreover. The ring body of rotating ring 2 cup joints on axle 5, and for transition fit between the two, rotating ring 2 passes through rotating ring sealing washer 21 and forms static seal between rotating ring 2 and axle 5, and the ring body of rotating ring 2 inserts between the inlayer ring and the outer ring of quiet ring 3, and the ring body is gapped with inlayer ring and outer ring, sets up floating ring 4 between the ring body of rotating ring 2 and the inlayer ring, and rotating ring 2 through floating ring 4 realize with the dynamic seal between quiet ring 3. When the bearing box is used, the movable ring 2 rotates along with the shaft 5, the static ring 3 is fixed, the movable ring 2 drives the floating ring 4 to rotate together due to the friction effect of the movable ring 2 on the floating ring 4, so that a gap which is bent by 90 degrees for three times is formed between the movable ring 2 and the static ring 3, and the communication between two ends of the gap is isolated through the floating ring 4, namely the communication between the inside of the bearing box and the outside of the bearing box is isolated.

In order to improve the sealing performance of the bearing protector, realize the effective sealing of the bearing box, save the equipment maintenance cost, avoid the leakage of lubricating oil and avoid the pollution to the working environment, the technical scheme is that the choke groove 22 with the square cross section is arranged on the flange disc of the moving ring 2, the narrow edge matched with the groove width of the choke groove 22 is correspondingly arranged at the outer ring port of the static ring 3, after the moving ring 2 and the static ring 3 are installed together, the narrow edge is inserted into the choke groove 22, a gap is arranged between the narrow edge and the choke groove 22, the gap is communicated with the original gap between the moving ring 2 and the static ring 3, and the gap which is formed by five 90-degree turns is formed between the moving ring 2 and the static ring 3.

When the lubricating oil splash bearing is used, a part of lubricating oil splashes onto the moving ring 2, and most of the lubricating oil contacting the moving ring 2 is thrown away by the centrifugal action of the moving ring 2, so that the lubricating oil cannot enter between the moving ring 2 and the static ring 3, and only a small part of lubricating oil can enter between the moving ring 2 and the static ring 3. Since the static seal is realized between the rotating ring 2 and the shaft 5 by the rotating ring seal 21, the rotating ring seal 21 blocks a path of leakage of the lubricating oil along the gap between the rotating ring 2 and the rotating ring seal 21. Because the movable ring 2 rotates, a gap is inevitably formed between the movable ring 2 and the bearing seat 1, the gap between the movable ring 2 and the bearing seat 1 is along the axial direction of the shaft 5, and a gap perpendicular to the shaft 5 is formed between the movable ring 2 and the stationary ring 3, so that splashed lubricating oil firstly flows into the gap between the movable ring 2 and the bearing seat 1, flows into the gap between the movable ring 2 and the stationary ring 3 after 90-degree turning, flows into the gap between the flow blocking groove 22 and the narrow edge of the stationary ring 3 after 90-degree turning, and flows into the gap between the ring body and the inner ring and the outer ring after 90-degree turning. The lubricating oil that splashes makes a turn 90 through aforementioned cubic, kinetic energy greatly reduced, most lubricating oil can't continue forward motion again, and then attach to on the ring body, when adnexed lubricating oil follower ring 2 rotates to the minimum, lubricating oil backward flows back to the bearing box along the clearance in the case, and then realizes the effective sealing of lubricating oil, the leakproofness of bearing protector has been improved, the effective sealing of bearing box has been realized, the equipment maintenance cost has been saved, lubricating oil leakage has been avoided, pollution to operational environment has been avoided.

In addition, in the use of bearing, because the frictional heating, the temperature of bearing chamber is higher than the temperature outside the case, the air in the bearing chamber can flow outside the case because of the principle of expend with heat and contract with cold, and use floating ring 4 among this technical scheme, floating ring 4 rotates along with rotating ring 2, under centrifugal action, floating ring 4 can produce slight circumference tensile, the girth of floating ring 4 is elongated promptly, and hug closely moving ring 2, with the dynamic seal between the stationary ring 3, the dynamic seal between floating ring 4 and the stationary ring 3 is slightly washed away along the clearance between moving ring 2 and the stationary ring 3 to the expanded hot air that heats, and then release the expanded air in the bearing chamber, reduce the pressure in the chamber. After equipment shuts down, the bearing stall, the temperature in the bearing chamber reduces gradually, make the pressure in the bearing chamber be less than atmospheric pressure on the contrary after the air cooling of thermal expansion, at this moment external air will be impressed in the bearing chamber along the clearance between rotating ring 2 and the quiet ring 3 by the atmosphere, and external air has vapor, can make lubricating oil inefficacy, the floating ring 4 that sets up among this technical scheme just can effectively block at this moment that external air passes through the clearance between rotating ring 2 and the quiet ring 3 and gets into the bearing chamber, consequently, floating ring 4 has realized the breathing phenomenon who prevents the bearing chamber, avoid the adverse effect of external vapor to lubricating oil.

In one embodiment, the outer wall of the ring body of the movable ring 2 is provided with an oil storage groove 23, and the cross section of the oil storage groove 23 is V-shaped.

When getting into the lubricating oil kinetic energy in the clearance between ring body and inlayer ring, the outer ring and reducing greatly for assisting when the ring body, in order to avoid lubricating oil to flow to the clearance depths of rotating ring 2 and quiet ring 3 along the ring body surface, further guarantee bearing protector's leakproofness, this technical scheme sets up the oil storage tank 23 that the cross section is the V style of calligraphy on the ring body of rotating ring 2. When the bearing protector is used, lubricating oil is attached to the ring body, the V-shaped oil storage groove 23 has a relatively low height relative to other surfaces of the ring body, the lubricating oil is gathered in the oil storage groove 23, when the lubricating oil follower ring 2 rotates to the lowest point, the lubricating oil is separated from the surface of the ring body, a gap between the follower ring 2 and the stationary ring 3 returns to a bearing box, the lubricating oil attached to the surface of the ring body is prevented from flowing to the deep position of the gap between the movable ring 2 and the stationary ring 3, and the sealing performance of the bearing protector is further ensured.

In one embodiment, the device further comprises a moving ring sealing ring 21, a moving ring sealing ring groove is formed in the inner wall of the ring body of the moving ring 2, the moving ring sealing ring 21 is arranged in the moving ring sealing ring groove, the moving ring 2 is sleeved on the shaft 5, and the moving ring 2 is fixed with the shaft 5 through the moving ring sealing ring 21 and forms static sealing.

In one embodiment, the bearing seat further comprises a static ring sealing ring 31, a static ring sealing ring groove is formed in the outer wall of the outer layer ring, the static ring sealing ring 31 is arranged in the static ring sealing ring groove, and the static ring 3 forms static seal with the bearing seat 1 through the static ring sealing ring 31.

In one embodiment, the inner wall of the single-layer ring is circumferentially provided with a dirt collection groove 32.

When the bearing is used, when external solid particles enter the bearing, the abrasion of the bearing is accelerated, lubricating oil is polluted, and the service life of the bearing is greatly reduced.

In order to avoid external pollutants entering the bearing, such as dust particles, the technical scheme of avoiding the bearing is that the dirt collecting groove 32 is arranged on the inner wall of the single layer along the circumferential direction. When in use, because there is the clearance between quiet ring 3 and the axle 5, outside pollutant can only get into the bearing protector from the clearance between quiet ring 3 and the axle 5, and the space volume of filth collecting vat 32 is greater than the volume in clearance between quiet ring 3 and the axle 5, so most outside pollutant gets into and is detained among the filth collecting vat 32 behind the quiet ring 3, the minority pollutant continues to enter into the clearance of quiet ring 3 and rotating ring 2, but because the clearance of quiet ring 3 and rotating ring 2 is that many times 90 turns form, and floating ring 4 is to the dynamic seal between quiet ring 3 and rotating ring 2 in addition, so keep off outside pollutant outside the bearing protector effectively, avoided outside particulate matter to get into the bearing and lead to the bearing wearing and tearing, the life of extension bearing.

In one embodiment, a drain hole 33 is further included, the drain hole 33 being distributed along the dirt collection groove 32.

In order to make the filth among the filth collecting vat 32 can be clear away automatically, avoid a large amount of pollutants gathering in filth collecting vat 32, this technical scheme sets up blowdown hole 33 on filth collecting vat 32 to all be provided with blowdown hole 33 along filth collecting vat 32 a week, get into the pollutant gathering of filth collecting vat 32 after certain quality, under the effect of gravity, arrange the external world from blowdown hole 33, and then realize the automatic clear of pollutant, avoid a large amount of pollutants gathering in filth collecting vat 32.

In one embodiment, a gap is arranged between the outer edge of the flange plate of the movable ring 2 and the bearing seat 1, a gap is also arranged between the movable ring 2 and the stationary ring 3, and the movable ring 2 and the shaft 5 are in transition fit; the minimum inner diameter of the static ring 3 is larger than the diameter of the shaft 5, and the outer layer ring of the static ring 3 is in transition fit with the bearing seat 1.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. An oil lubrication bearing protector comprises a bearing seat (1), a shaft (5), a movable ring (2), a static ring (3) and a floating ring (4), wherein the movable ring (2) is sleeved on the shaft, the movable ring (2) comprises a ring body and a flange disc which is integrally formed and arranged at one end of the ring body, a floating ring groove I (24) is arranged on the inner wall of the ring body of the movable ring (2), and the floating ring groove I (24) and the flange disc are respectively positioned at two ends of the ring body; quiet ring (3) one end is provided with inlayer ring and outer ring, quiet ring (3) other end is the individual layer ring, inlayer ring cup joints on axle (5), outer ring pegs graft on bearing frame (1), be provided with floating ring groove II (34) on the inlayer ring, when rotating ring (2) are connected with quiet ring (3), the ring body is located between inlayer ring and the outer ring, floating ring groove I (24) are just to floating ring groove II (34), and floating ring groove I (24) and floating ring groove II (34) form the dynamic seal through floating ring (4), its characterized in that:

be provided with on the flange dish that the cross section is square resistance groove (22), this resistance groove (22) are located one side that the flange dish is close to unsteady annular I (24), the port of outer ring sets up to the narrow limit with resistance groove (22) groove width assorted, and when the rotating ring is connected with quiet ring, the narrow limit inserts in resistance groove (22), and is clearance fit between narrow limit and resistance groove (22).

2. An oil-lubricated bearing protector as claimed in claim 1, wherein: an oil storage tank (23) is arranged on the outer wall of the ring body of the movable ring (2), and the cross section of the oil storage tank (23) is V-shaped.

3. An oil-lubricated bearing protector as claimed in claim 1, wherein: still include rotating ring sealing washer (21), the ring body inner wall of rotating ring (2) is provided with the rotating ring sealing washer groove, and rotating ring sealing washer (21) set up in the rotating ring sealing washer groove, and rotating ring (2) cup joints on axle (5), and rotating ring (2) are fixed and form static seal through rotating ring sealing washer (21) and axle (5).

4. An oil-lubricated bearing protector as claimed in claim 1, wherein: still include quiet ring seal (31), the outer wall of outer ring is provided with quiet ring seal groove, and quiet ring seal (31) set up in quiet ring seal groove, and quiet ring (3) form static seal through quiet ring seal (31) and bearing frame (1).

5. An oil-lubricated bearing protector as claimed in claim 1, wherein: the inner wall of the single-layer ring is provided with a dirt collecting groove (32) along the circumferential direction.

6. An oil-lubricated bearing protector according to claim 5, wherein: and the sewage treatment device also comprises sewage discharge holes (33), wherein the sewage discharge holes (33) are distributed along the sewage collection tank (32).

7. An oil-lubricated bearing protector as claimed in claim 1, wherein: a gap is arranged between the outer edge of a flange disc of the movable ring (2) and the bearing seat (1), a gap is also arranged between the movable ring (2) and the static ring (3), and the movable ring (2) is in transition fit with the shaft (5); the minimum inner diameter of the static ring (3) is larger than the diameter of the shaft (5), and the outer layer ring of the static ring (3) is in transition fit with the bearing seat (1).

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