CN219692028U - Thin oil lubrication sealing device - Google Patents
Thin oil lubrication sealing device Download PDFInfo
- Publication number
- CN219692028U CN219692028U CN202320885341.6U CN202320885341U CN219692028U CN 219692028 U CN219692028 U CN 219692028U CN 202320885341 U CN202320885341 U CN 202320885341U CN 219692028 U CN219692028 U CN 219692028U
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- oil
- bearing
- sealing cover
- oil collecting
- cover
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- 238000007789 sealing Methods 0.000 title claims abstract description 110
- 238000005461 lubrication Methods 0.000 title claims description 13
- 230000000903 blocking effect Effects 0.000 claims abstract description 11
- 230000003068 static effect Effects 0.000 claims abstract description 4
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 207
- 230000001050 lubricating effect Effects 0.000 abstract description 4
- 239000010687 lubricating oil Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a bearing lubricating oil sealing device, in particular to a thin oil lubricating sealing device, a bearing is arranged on a shaft body, end covers are sleeved on two sides of the bearing on the shaft body, an oil seal is arranged between the end covers and the shaft body, two sides of the bearing respectively form cavities with the two end covers, sealing covers are arranged on two sides of the bearing, the two sealing covers are respectively positioned in the two cavities and positioned between the bearing and the oil seal, the sealing covers can be arranged as movable sealing covers rotating along with the bearing or static sealing covers rotating along with the bearing, the end surfaces of the sealing covers, the end surfaces of the bearing and the inner walls of the end covers form an oil collecting cavity, the oil collecting cavity is provided with an oil outlet, the sealing covers can play the effect of blocking leakage of thin oil on the end surfaces of the bearing, and part of the thin oil leaked into the oil collecting cavity can be guided by the oil collecting cavity to be discharged from the oil outlet, so that the thin oil is effectively prevented from contacting the oil seal and leaking from the oil seal.
Description
Technical Field
The utility model relates to a bearing lubricating oil sealing device, in particular to a thin oil lubricating sealing device.
Background
In order to make the bearing stably usable, it is necessary to periodically replenish the bearing with lubricating oil, and the bearing lubricating oil commonly used at present is generally composed of two types, namely, dry oil and thin oil, and the thin oil has higher fluidity than the dry oil, and has a better lubricating effect on the bearing, and the thin oil flows to have a cooling effect, but the thin oil leaks, so that a structure capable of avoiding or reducing the leakage of the thin oil in the bearing is required.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a lubricating and sealing structure which is applied to a bearing and can prevent or reduce leakage of thin oil, so that the bearing can be lubricated by using the thin oil.
In order to solve the technical problems, the utility model adopts the following technical scheme: the thin oil lubrication sealing device comprises a bearing, an end cover and sealing covers, wherein the bearing is arranged on a shaft body, the end covers are sleeved on two sides of the bearing on the shaft body, an oil seal is arranged between the end cover and the shaft body, two sides of the bearing respectively form cavities with the two end covers, the sealing covers are arranged on two sides of the bearing, and the two sealing covers are respectively positioned inside the two cavities and are positioned between the bearing and the oil seal.
As a further scheme, the sealing cover is an annular plate. The sealing cover of the annular plate structure is arranged at the end part of the bearing, and shields the part between the inner ring and the outer ring of the bearing, so that the leakage amount of thin oil from the end surface of the bearing is reduced.
As a further scheme, the sealing cover is a static sealing cover, the sealing cover is connected with the end cover, yielding gaps are reserved between the sealing cover and the bearing, between the sealing cover and the shaft body and between the sealing cover and the oil seal, the yielding gaps are communicated to form oil passing gaps, an oil blocking inclined surface is arranged on the end face, facing the bearing, of the sealing cover, an oil collecting cavity is formed by the oil blocking inclined surface, the end face of the sealing cover, the end face of the bearing and a cavity area defined by the inner wall of the end cover, and the oil collecting cavity is provided with an oil drain. Thin oil leaked from the end face of the bearing enters the oil collecting cavity in a direction away from the oil seal under the guidance of the oil blocking inclined plane, and finally can be intensively discharged from an oil drain port of the oil collecting cavity.
As a further scheme, the end part of the sealing cover, which faces the end cover, is provided with an oil collecting groove which is communicated with the oil collecting cavity. The oil collecting groove is positioned in the oil collecting cavity and is used for guiding the thin oil in the oil collecting cavity to the oil drain port for draining.
As a further scheme, the oil collecting groove is an annular groove.
As a further scheme, the sealing cover is a movable sealing cover, the sealing cover is connected with the inner ring of the bearing, a gap is reserved between the sealing cover and the end cover, the end face of the sealing cover facing the bearing is provided with an oil passing groove, a cavity area defined by the oil passing groove, the end face of the bearing, the end face of the sealing cover and the inner wall of the end cover forms an oil collecting cavity, the oil collecting cavity is communicated with the gap, and the oil collecting cavity is provided with an oil drain port. The sealing cover rotates along with the bearing, thin oil leaked from the end surface of the bearing is thrown into the oil collecting cavity from the oil passing groove, and finally can be discharged from the oil discharging port of the oil collecting cavity in a concentrated mode.
As a further scheme, the sealing cover is provided with an oil collecting groove at a position, far away from the bearing, in the oil collecting cavity, and the oil collecting groove is communicated with the oil collecting cavity. The oil collecting groove is used for guiding the thin oil in the oil collecting cavity to the oil discharge port to be discharged.
As a further scheme, the end face of the sealing cover facing the end cover is provided with an oil collecting protrusion, the oil collecting protrusion is provided with an oil collecting groove, the end cover is provided with a containing groove for containing the oil collecting protrusion, and the containing groove is communicated with the gap.
The oil collecting groove is an annular groove, and the notch of the oil collecting groove is positioned outside the containing groove. The relative position of oil collecting groove and holding tank makes the oil collecting groove shelter from the notch of holding tank, and the thin oil in the oil collecting chamber can directly fall to the oil collecting groove in by the direction oil drain port, and the structure of oil collecting groove can also effectively avoid thin oil flow to oil blanket department.
As a further scheme, the bearing further comprises a bearing chamber, the bearing chamber is sleeved outside the bearing, the bearing chamber is positioned between the two end covers and is connected with the two end covers, an oil inlet is formed in the bearing chamber, and the oil inlet is communicated with an oil supplementing port of the bearing. The oil can be conveniently supplemented to the bearing through the oil inlet of the bearing chamber.
The beneficial effects are that: 1. the two sealing covers are respectively arranged at the two sides of the bearing to shield the end face of the bearing, so that the effect of avoiding the outflow of thin oil is achieved; 2. the sealing cover shields the bearing and the corresponding side oil seal, so that the thin oil flowing out is prevented from directly contacting the oil seal; 3. the cavity is provided with an oil drain port, and an oil collecting cavity part in the cavity is also provided with an oil collecting groove, so that the part exposed from the bearing is conveniently led to the oil drain port to be discharged.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of a thin oil lubrication seal of example 1;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
FIG. 3 is a schematic structural view of a thin oil lubrication seal of example 2;
FIG. 4 is an enlarged schematic view at B in FIG. 3;
in the figure: 1. the oil-collecting device comprises a bearing, 2, an end cover, 3, a sealing cover, 31, an oil-blocking inclined plane, 32, an oil collecting groove, 4, a shaft body, 5, an oil seal, 6, an oil collecting cavity, 61, an oil drain port, 7, a bearing chamber, 71 and an oil inlet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.
Example 1
The thin oil lubrication sealing device is shown in fig. 1 and 2 and comprises a bearing 1, end covers 2 and sealing covers 3, wherein the bearing 1 is arranged on a shaft body 4, the end covers 2 are sleeved on two sides of the bearing 1 on the shaft body 4, the end covers 2 are of annular structures, an oil seal 5 is arranged between an inner ring of the end covers 2 and the shaft body 4, two sides of the bearing 1 respectively form cavities with the two end covers 2, under the action of the oil seal 5, the two cavities are sealed, the two sides of the bearing 1 are respectively provided with the sealing covers 3, the two sealing covers 3 are respectively positioned inside the two cavities, the sealing covers 3 are positioned between the bearing 1 and the oil seal 5, and the sealing covers 3 are used for shielding at the end faces of the bearing 1 so as to prevent thin oil in the bearing 1 from flowing out in a large amount, and further prevent the thin oil from contacting the oil seal 5 so as to flow outside the cavities.
The sealing cover 3 is a static sealing cover 3, the sealing cover 3 is connected with the end cover 2, specifically, bolts or other connecting pieces penetrate through the end cover 2, the sealing cover 3 is connected with the end cover 2 through the bolts or other connecting pieces, and the sealing cover 3 does not rotate along with the bearing 1.
And yielding gaps are reserved between the sealing cover 3 and the bearing 1, between the sealing cover 3 and the shaft body 4 and between the sealing cover 3 and the oil seal 5, the yielding gaps are communicated to form oil passing gaps, an oil blocking inclined surface 31 is arranged on the end surface of the sealing cover 3 facing the bearing 1, an oil collecting cavity 6 is formed in a cavity area defined by the oil blocking inclined surface 31, the end surface of the sealing cover 3, the end surface of the bearing 1 and the inner wall of the end cover 2, and an oil drain port 61 is arranged in the oil collecting cavity 6. Specifically, referring to fig. 2, the end face of the sealing cover 3 facing the bearing 1 is not contacted with the inner ring of the bearing 1, the inner side face of the sealing cover 3 facing the shaft body 4 is not contacted with the shaft body 4, the end face of the sealing cover 3 facing the oil seal 5 is not contacted with the oil seal 5, spaces between the sealing cover 3 and the bearing 1, between the sealing cover 3 and the shaft body 4 and between the sealing cover 3 and the oil seal 5 are yielding gaps, and the yielding gaps are mutually communicated to form oil passing gaps, so that a small amount of thin oil can pass through the oil passing gaps. The oil blocking inclined surface 31 is arranged on the end surface of the sealing cover 3 facing the bearing 1, the oil blocking inclined surface 31 faces the bearing 1 and faces the direction away from the central axis of the shaft body 4, the oil collecting cavity 6 is formed by the oil blocking inclined surface 31, the end surface of the sealing cover 3, the end surface of the bearing 1 and the cavity area defined by the inner wall of the end cover 2, an oil passing gap is communicated with the oil collecting cavity 6, a small amount of thin oil flowing out of the end surface of the bearing 1 can enter the oil collecting cavity 6 through the oil passing gap under the guidance of the oil blocking inclined surface 31, the thin oil is prevented from flowing to the oil seal 5, and the oil in the oil collecting cavity 6 is finally discharged from the oil drain port 61. Preferably, the oil drain port 61 is preferably arranged at a position below the side surface of the oil collecting cavity 6, for example, as shown in fig. 1 and 2, when the shaft body 4 is horizontally used, the oil drain port 61 is located below the shaft body 4, and the thin oil in the oil collecting cavity 6 continuously flows downwards so as to be discharged from the oil drain port 61.
Further, the end of the sealing cover 3 facing the end cover 2 is provided with an oil collecting groove 32, the oil collecting groove 32 is communicated with the oil collecting cavity 6, the oil collecting groove 32 is used for guiding oil in the oil collecting cavity 6 to flow to the oil drain port 61, and the oil collecting groove 32 is preferably an annular groove.
Example 2
The thin oil lubrication sealing device is shown in fig. 3 and 4, and comprises a bearing 1, end covers 2 and sealing covers 3, wherein the bearing 1 is arranged on a shaft body 4, the end covers 2 are sleeved on two sides of the shaft body 4, an oil seal 5 is arranged between the end covers 2 and the shaft body 4, cavities are formed by two sides of the bearing 1 and the two end covers 2 respectively, the sealing covers 3 are arranged on two sides of the bearing 1, and the two sealing covers 3 are positioned in the two cavities respectively and between the bearing 1 and the oil seal 5.
The sealing cover 3 is a movable sealing cover 3, the sealing cover 3 is connected with the inner ring of the bearing 1, a gap is reserved between the sealing cover 3 and the end cover 2, and an oil passing groove is formed in the end face, facing the bearing 1, of the sealing cover 3. Specifically, referring to fig. 4, the sealing cover 3 is connected with the inner ring of the bearing 1, the sealing cover 3 is not in contact with the end cover 2, the sealing cover 3 rotates along with the bearing 1 and the shaft, the space between the end face of the sealing cover 3 facing the bearing 1 and the end face of the bearing 1 is an oil passing groove, and the oil passing groove is communicated with the cavity.
The oil collecting cavity 6 is formed by the oil groove, the end face of the bearing 1, the end face of the sealing cover 3 and the cavity area defined by the inner wall of the end cover 2, the oil collecting cavity 6 is communicated with the gap, and the oil collecting cavity 6 is provided with an oil drain port 61. Specifically, a part of the thin oil flowing out from the end surface of the bearing 1 enters the oil collecting chamber 6 from the oil passing groove, and is finally discharged from the oil discharge port 61. Preferably, the oil drain port 61 is preferably arranged at a position below the side surface of the oil collecting cavity 6, for example, as shown in fig. 3 and 4, when the shaft body 4 is horizontally used, the oil drain port 61 is located below the shaft body 4, and the thin oil in the oil collecting cavity 6 continuously flows downwards so as to be discharged from the oil drain port 61.
Further, the sealing cover 3 is provided with an oil collecting groove 32 at a position far away from the bearing 1 in the oil collecting cavity 6, and the oil collecting groove 32 is communicated with the oil collecting cavity 6. The thin oil entering the oil collecting chamber 6 from the oil passing groove is guided by the oil collecting groove 32 and finally discharged from the oil drain port 61. In some embodiments, the end face of the sealing cover 3 facing the end cover 2 is provided with an oil collecting protrusion, the oil collecting groove 32 is arranged on the oil collecting protrusion, and the end cover 2 is provided with a containing groove for containing the oil collecting protrusion, and the containing groove is communicated with the gap. Part of the thin oil flowing out of the end face of the bearing 1 enters the oil collecting chamber 6 from the oil passing groove, is guided through the oil collecting groove 32, and finally is discharged from the oil discharge port 61. Further, the oil collecting groove 32 is an annular groove, the notch of the oil collecting groove 32 is located outside the accommodating groove, the notch of the accommodating groove is shielded by the oil collecting groove 32, and thin oil can be prevented from contacting with the oil seal 5 through a gap between the sealing cover 3 and the end cover 2, so that thin oil is prevented from leaking out through the oil seal 5.
In other embodiments, the sealing plate can also be an annular plate, and the sealing plate shields the middle part of the inner ring and the outer ring of the bearing 1 at the end face of the bearing 1, so that the outflow of thin oil is reduced.
On the basis of the above embodiment, the thin oil lubrication sealing device further comprises a bearing chamber 7, the bearing chamber 7 is sleeved outside the bearing 1, the bearing chamber 7 is located between the two end covers 2 and is connected with the two end covers 2, an oil inlet is formed in the bearing chamber 7, and the oil inlet is communicated with an oil supplementing port of the bearing 1. Specifically, the bearing chamber 7 is sleeved outside the bearing 1, the bearing chamber 7 is located between the two end covers 2 and connected with the two end covers 2, the bearing chamber 7 and the two end covers 2 form a cavity for accommodating the bearing 1, and an oil inlet formed in the bearing chamber 7 is communicated with an oil supplementing port of the bearing 1 so as to supplement oil to the bearing 1 through the bearing chamber 7.
In the description of the present specification, reference to the terms "one embodiment," "example," "specific example," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (10)
1. Thin oil lubrication sealing device, its characterized in that: including bearing (1), end cover (2) and sealed lid (3), bearing (1) are installed on axis body (4), and the both sides that lie in bearing (1) on axis body (4) all overlap and are equipped with end cover (2), be equipped with oil blanket (5) between end cover (2) and axis body (4), the both sides of bearing (1) respectively with two end covers (2) formation cavity, the both sides of bearing (1) all are equipped with sealed lid (3), and two sealed lid (3) are located inside two cavities respectively and sealed lid (3) are located between bearing (1) and oil blanket (5).
2. The thin oil lubrication seal of claim 1 wherein: the sealing cover (3) is an annular plate.
3. The thin oil lubrication seal of claim 1 wherein: the sealing cover (3) is a static sealing cover (3), the sealing cover (3) is connected with the end cover (2), a yielding gap is reserved between the sealing cover (3) and the bearing (1), between the sealing cover (3) and the shaft body (4) and between the sealing cover (3) and the oil seal (5), the yielding gaps are communicated to form an oil passing gap, the end face of the sealing cover (3) facing the bearing (1) is provided with an oil blocking inclined surface (31), the end face of the sealing cover (3), the end face of the bearing (1) and a cavity area defined by the inner wall of the end cover (2) form an oil collecting cavity (6), and the oil collecting cavity (6) is provided with an oil drain port (61).
4. A thin oil lubricated sealing device according to claim 3, wherein: the end part of the sealing cover (3) facing the end cover (2) is provided with an oil collecting groove (32), and the oil collecting groove (32) is communicated with the oil collecting cavity (6).
5. The thin oil lubricated sealing device according to claim 4, wherein: the oil collecting groove (32) is an annular groove.
6. The thin oil lubrication seal of claim 1 wherein: the sealing cover (3) is a movable sealing cover (3), the sealing cover (3) is connected with the inner ring of the bearing (1), a gap is reserved between the sealing cover (3) and the end cover (2), an oil passing groove is formed in the end face of the sealing cover (3) facing the bearing (1), an oil collecting cavity (6) is formed in the end face of the bearing (1), the end face of the sealing cover (3) and a cavity area defined by the inner wall of the end cover (2), the oil collecting cavity (6) is communicated with the gap, and an oil drain port (61) is formed in the oil collecting cavity (6).
7. The thin oil lubricated sealing device according to claim 6, wherein: the sealing cover (3) is provided with an oil collecting groove (32) at a position far away from the bearing (1) in the oil collecting cavity (6), and the oil collecting groove (32) is communicated with the oil collecting cavity (6).
8. The thin oil lubricated sealing device according to claim 7, wherein: the end face of the sealing cover (3) facing the end cover (2) is provided with an oil collecting bulge, the oil collecting bulge is provided with an oil collecting groove (32), the end cover (2) is provided with a containing groove for containing the oil collecting bulge, and the containing groove is communicated with the gap.
9. The thin oil lubricated sealing device according to claim 8, wherein: the oil collecting groove (32) is an annular groove, and a notch of the oil collecting groove (32) is positioned outside the containing groove.
10. A thin oil lubrication seal according to any one of claims 1-9 wherein: the novel bearing comprises a bearing body, and is characterized by further comprising a bearing chamber (7), wherein the bearing chamber (7) is sleeved outside the bearing (1), the bearing chamber (7) is positioned between the two end covers (2) and is connected with the two end covers (2), an oil inlet (71) is formed in the bearing chamber (7), and the oil inlet (71) is communicated with an oil supplementing port of the bearing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320885341.6U CN219692028U (en) | 2023-04-19 | 2023-04-19 | Thin oil lubrication sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320885341.6U CN219692028U (en) | 2023-04-19 | 2023-04-19 | Thin oil lubrication sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219692028U true CN219692028U (en) | 2023-09-15 |
Family
ID=87969901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320885341.6U Active CN219692028U (en) | 2023-04-19 | 2023-04-19 | Thin oil lubrication sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219692028U (en) |
-
2023
- 2023-04-19 CN CN202320885341.6U patent/CN219692028U/en active Active
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