CN220320119U - Floating sealing structure for sliding bearing of compressor - Google Patents
Floating sealing structure for sliding bearing of compressor Download PDFInfo
- Publication number
- CN220320119U CN220320119U CN202322109799.5U CN202322109799U CN220320119U CN 220320119 U CN220320119 U CN 220320119U CN 202322109799 U CN202322109799 U CN 202322109799U CN 220320119 U CN220320119 U CN 220320119U
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- CN
- China
- Prior art keywords
- floating
- bearing seat
- bearing
- compressor
- shaft sleeve
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- 238000007789 sealing Methods 0.000 title claims abstract description 48
- 239000010687 lubricating oil Substances 0.000 abstract description 8
- 239000003921 oil Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a floating sealing structure for a sliding bearing of a compressor, which comprises the following components: a bearing seat; the shaft sleeve is rotatably arranged in the bearing seat; the sealing rings are arranged at two ends of the bearing seat, and a gap between the sealing rings and the shaft sleeve is set as a floating gap; the pressing plate is arranged on the outer side of the sealing ring, the sealing rings are arranged at the two ends of the bearing seat for sealing, a floating gap is arranged between the sealing rings and the shaft sleeve, lubricating oil is pressed into the floating gap by the pressure of about 0.3MPa in the sliding bearing of the compressor, and when the sealing rings float along with fluctuation of the shaft sleeve, an oil film in the floating gap leaks outwards.
Description
Technical Field
The utility model relates to the field of sealing, in particular to a floating sealing structure for a sliding bearing of a compressor.
Background
During industrial production today, air compressors are used by many industries. The pressure value of lubricating oil injected into the sliding bearing of the compressor reaches about 0.3MPa (3 kg pressure), the two ends of the sliding bearing of the compressor are required to be designed into reasonable sealing structures, and the problem that lubricating oil in the sliding bearing leaks out from the two ends and meanwhile too fast leakage cannot be realized is also considered.
Disclosure of Invention
The utility model aims to provide a floating sealing structure for a sliding bearing of a compressor, which has the advantages of simple structure, obvious effect, safety and convenience.
In order to achieve the above object, the present utility model adopts the following technical scheme:
a floating seal arrangement for a compressor slide bearing, comprising:
a bearing seat;
the shaft sleeve is rotatably arranged in the bearing seat;
the sealing rings are arranged at two ends of the bearing seat, and a gap between the sealing rings and the shaft sleeve is set as a floating gap;
and the pressing plate is arranged outside the sealing ring.
Preferably, the outer side of the shaft sleeve is provided with a limiting ring, and a clamping groove matched with the limiting ring is arranged in the bearing seat.
Preferably, both sides of the inner part of the bearing seat are provided with mounting grooves, the diameter of each mounting groove is larger than the outer diameter of the sealing ring, and one side of the sealing ring is abutted with each mounting groove.
Preferably, the floating gap is 0.03-0.04 mm.
Preferably, grooves matched with the pressing plates are formed in the two sides of the bearing seat, the pressing plates are located in the grooves, the side faces of the pressing plates are abutted to the other side of the sealing ring, bolts are arranged on the pressing plates, and the bolts penetrate through the pressing plates to be fixedly connected with the bearing seat.
Preferably, the sealing ring is provided with a fastening hole, an anti-rotation pin is arranged in the fastening hole, the mounting groove is provided with a floating groove, and the anti-rotation pin is positioned in the fastening hole and the floating groove.
Compared with the prior art, the floating sealing structure for the sliding bearing of the compressor, which adopts the technical scheme, has the following beneficial effects:
by adopting the floating sealing structure for the sliding bearing of the compressor, the sealing rings are arranged at the two ends of the bearing seat for sealing, the floating gap is arranged between the sealing rings and the shaft sleeve, lubricating oil is pressed into the floating gap by the pressure of about 0.3MPa in the sliding bearing of the compressor, and when the sealing rings float along with the fluctuation of the shaft sleeve, an oil film in the floating gap leaks outwards.
Drawings
Fig. 1 is a schematic structural view of a floating seal arrangement for a compressor slide bearing.
Fig. 2 is an enlarged view at a of fig. 1.
Reference numerals: 1. a bearing seat; 11. a clamping groove; 12. a mounting groove; 13. a floating tank; 2. a shaft sleeve; 21. a limiting ring; 3. a seal ring; 31. a fastening hole; 4. a pressing plate; 41. a bolt; 5. an anti-rotation pin.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 2, a floating seal structure for a sliding bearing of a compressor, comprising: a bearing seat 1; a sleeve 2 rotatably provided in the bearing housing 1; sealing rings 3 which are arranged at two ends of the bearing seat 1, wherein a clearance between the sealing rings 3 and the shaft sleeve 2 is set as a floating clearance; and a pressing plate 4 provided outside the seal ring 3. The bearing frame 1 both ends set up sealing ring 3 and seal to be equipped with the clearance that floats between sealing ring 3 and the axle sleeve 2, the inside about 0.3MPa pressure of compressor slide bearing is impressed lubricating oil clearance that floats, when sealing ring 3 is undulantly along with axle sleeve 2 carries out the float, and the oil film in the clearance that floats outwards lets out.
The outside of the shaft sleeve 2 is provided with a limiting ring 21 which is integrally arranged, the inside of the bearing seat 1 is provided with a clamping groove 11 which is matched with the limiting ring 21, both sides of the inside of the bearing seat 1 are provided with mounting grooves 12, the diameter of each mounting groove 12 is larger than the outer diameter of the corresponding sealing ring 3, and one side of the corresponding sealing ring 3 is abutted against each mounting groove 12. The floating gap is 0.03-0.04 mm.
The lubricating oil is filled in the floating gap under the pressure of about 0.3MPa in the sliding bearing of the compressor, when the shaft sleeve 2 rotates at a high speed along with the screw rod of the compressor, the oil film in the floating gap leaks along with the rotation of the shaft sleeve 2, the sealing ring 3 can float along with the fluctuation of the shaft sleeve 2, and the floating effect and the sealing effect are achieved.
The both sides of bearing frame 1 are equipped with the recess with clamp plate 4 looks adaptation, and clamp plate 4 is located the recess, clamp plate 4 side and sealing ring 3 opposite side butt are equipped with bolt 41 on the clamp plate 4, and bolt 41 passes clamp plate 4 and bearing frame 1 fastening connection, and clamp plate 4 is used for fixed sealing ring 3. The sealing ring 3 is provided with a fastening hole 31, the fastening hole 31 is internally provided with an anti-rotation pin 5, the mounting groove 12 is provided with a floating groove 13, and the anti-rotation pin 5 is positioned in the fastening hole 31 and the floating groove 13. The anti-rotation pin 5 is arranged in the fastening hole 31 of the sealing ring 3, and the anti-rotation pin 5 effectively prevents the sealing ring 3 from rotating along with the circumferential direction of the shaft sleeve 2; the anti-rotation pin 5 is clamped in the floating groove 13 of the bearing seat 1, a gap is reserved between the anti-rotation pin 5 and the floating groove 13, so that the sealing ring 3 can float along with fluctuation of the shaft sleeve 2, and the proper leakage speed of lubricating oil in the bearing seat 1 from two ends is ensured; the leakage speed of lubricating oil between the bearing seat 1 and the shaft sleeve 2 can be adjusted by adjusting the floating clearance through design, and the device has the advantages of simple structure, obvious effect, safety and convenience.
While the foregoing is directed to the preferred embodiment of the present utility model, other and further modifications and improvements may be made by those skilled in the art without departing from the principles of the utility model, and such are intended to be considered within the scope of the utility model.
Claims (6)
1. A floating seal arrangement for a compressor slide bearing, comprising:
a bearing seat (1);
the shaft sleeve (2) is rotatably arranged in the bearing seat (1);
the sealing rings (3) are arranged at two ends of the bearing seat (1), and a gap between the sealing rings (3) and the shaft sleeve (2) is set to be a floating gap;
and a pressing plate (4) arranged outside the sealing ring (3).
2. The floating seal structure for the sliding bearing of the compressor according to claim 1, wherein a limiting ring (21) is arranged on the outer side of the shaft sleeve (2), and a clamping groove (11) matched with the limiting ring (21) is arranged in the bearing seat (1).
3. The floating seal structure for a sliding bearing of a compressor according to claim 1, wherein both sides of the interior of the bearing housing (1) are provided with mounting grooves (12), the diameter of the mounting grooves (12) is larger than the outer diameter of the sealing ring (3), and one side of the sealing ring (3) is abutted against the mounting grooves (12).
4. The floating seal arrangement for a compressor slide bearing as set forth in claim 1, wherein the floating gap is 0.03-0.04 mm.
5. The floating seal structure for a sliding bearing of a compressor according to any one of claims 1 to 4, wherein grooves matched with the pressing plate (4) are formed in two sides of the bearing seat (1), the pressing plate (4) is located in the grooves, the side face of the pressing plate (4) is abutted against the other side of the sealing ring (3), bolts (41) are arranged on the pressing plate (4), and the bolts (41) penetrate through the pressing plate (4) to be fixedly connected with the bearing seat (1).
6. The floating seal structure for a sliding bearing of a compressor according to claim 4, wherein the seal ring (3) is provided with a fastening hole (31), an anti-rotation pin (5) is provided in the fastening hole (31), the mounting groove (12) is provided with a floating groove (13), and the anti-rotation pin (5) is located in the fastening hole (31) and the floating groove (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322109799.5U CN220320119U (en) | 2023-08-08 | 2023-08-08 | Floating sealing structure for sliding bearing of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322109799.5U CN220320119U (en) | 2023-08-08 | 2023-08-08 | Floating sealing structure for sliding bearing of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220320119U true CN220320119U (en) | 2024-01-09 |
Family
ID=89423715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322109799.5U Active CN220320119U (en) | 2023-08-08 | 2023-08-08 | Floating sealing structure for sliding bearing of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220320119U (en) |
-
2023
- 2023-08-08 CN CN202322109799.5U patent/CN220320119U/en active Active
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| GR01 | Patent grant |