CN220816246U - Wear-resistant gland capable of automatically compensating wear - Google Patents
Wear-resistant gland capable of automatically compensating wear Download PDFInfo
- Publication number
- CN220816246U CN220816246U CN202322812296.4U CN202322812296U CN220816246U CN 220816246 U CN220816246 U CN 220816246U CN 202322812296 U CN202322812296 U CN 202322812296U CN 220816246 U CN220816246 U CN 220816246U
- Authority
- CN
- China
- Prior art keywords
- gland
- wear
- resistant
- shaft sleeve
- sealing
- 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.)
- Active
Links
- 210000004907 gland Anatomy 0.000 title claims abstract description 111
- 238000007789 sealing Methods 0.000 claims abstract description 64
- 238000005524 ceramic coating Methods 0.000 claims description 8
- 238000005299 abrasion Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 10
- 230000002035 prolonged effect Effects 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 14
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses an abrasion-resistant gland capable of automatically compensating abrasion, which relates to the technical field of glands for gear pumps, and comprises a gland 1 body and a shaft sleeve 2 capable of rotating in the gland 1, wherein more than one gland sealing groove 31 is arranged on the inner wall of the gland 1, and the gland sealing groove 31 radially protrudes out of the inner wall of the gland 1; the outer side of the gland sealing groove 31 is provided with a wear-resistant ring 32, and the inner side of the gland sealing groove 31 is provided with a first sealing ring 33 for radially compensating the tightness of the wear-resistant ring 32; the shaft sleeve 2 is in sealing fit with the wear-resistant ring 32. When the rotating shaft drives the shaft sleeve to rotate in the gland and rapidly and tightly rub with the wear-resistant ring, the first sealing ring provides radial compensation elastic thrust for the wear-resistant ring in the process that the wear-resistant ring is gradually thinned due to wear, so that the wear-resistant ring can continuously and tightly rub with the shaft sleeve, the tightness of the shaft sleeve is still maintained even if the wear-resistant ring becomes very thin, and the service life of the wear-resistant gland is prolonged.
Description
Technical Field
The utility model relates to the technical field of gland for gear pumps, in particular to a wear-resistant gland capable of automatically compensating wear.
Background
The existing gland for the cooperation work of the rotating shaft of the gear pump or the centrifugal pump mainly comprises a gland and a shaft sleeve arranged in the gland, wherein an O-shaped ring is arranged in the gland to seal the shaft sleeve, the shaft sleeve is used for being connected with the rotating shaft, and the rotating shaft drives the shaft sleeve to rotate in the gland.
Firstly, in the rotating process, the shaft sleeve rubs against the O-shaped ring in the gland to keep continuous loss of the O-shaped ring, and after the O-shaped ring is used for a long time, the O-shaped ring is thinned to reduce the sealing performance until the whole gland cannot be directly scrapped due to sealing.
Secondly, in the quick and tight friction process of the shaft sleeve and the O-shaped ring, continuous abrasion consumption can be generated on the shaft sleeve, after the shaft sleeve is used for a long time, even grooves can be generated on the abrasion positions of the outer wall of the shaft sleeve and the O-shaped ring, and even the outer wall of the whole shaft sleeve can be thinned in a large area, so that the sealing performance is reduced or loosened, and the whole gland is directly scrapped until the sealing is impossible.
Disclosure of utility model
The utility model aims to avoid the defects of the prior art and provide the wear-resistant gland capable of automatically compensating for wear. According to the utility model, when the rotating shaft drives the shaft sleeve to rotate in the gland and rapidly and tightly rub with the wear-resistant ring, the first sealing ring provides radial compensation elastic thrust for the wear-resistant ring in the process that the wear-resistant ring is gradually thinned due to abrasion, so that the wear-resistant ring can continuously and tightly rub with the shaft sleeve, the tightness of the wear-resistant ring to the shaft sleeve is still maintained even if the wear-resistant ring becomes very thin, and the service life of the wear-resistant gland is prolonged.
The above object of the present utility model is achieved by the following technical means:
An abrasion-resistant gland capable of automatically compensating abrasion comprises a gland 1 body and a shaft sleeve 2 which can rotate in the gland 1,
More than one gland sealing groove 31 is arranged on the inner wall of the gland 1, and the gland sealing groove 31 radially protrudes out of the inner wall of the gland 1;
The outer side of the gland sealing groove 31 is provided with a wear-resistant ring 32, and the inner side of the gland sealing groove 31 is provided with a first sealing ring 33 for radially compensating the tightness of the wear-resistant ring 32;
the shaft sleeve 2 is in sealing fit with the wear-resistant ring 32.
Further, the outer wall of the shaft sleeve 2 is coated with a ceramic coating 4.
Preferably, the gland sealing grooves 31 have two, and the two gland sealing grooves 31 are respectively provided with the wear-resistant ring 32 and the first sealing ring 33.
Further, an oil groove 51 is provided between the two gland sealing grooves 31 on the inner wall of the gland 1, and the gland 1 is provided with an oil hole 52 communicating with the oil groove 51.
Preferably, the inner wall of the gland 1 is provided with a supporting groove 61, the supporting groove 61 radially protrudes out of the inner wall of the gland 1, a supporting sleeve 62 is arranged in the supporting groove 61, and the supporting sleeve 62 is used for radially positioning the shaft sleeve 2.
Preferably, the gland 1 is further provided with a limiting groove 71, a limiting block 72 is arranged in the limiting groove 71, and the limiting block 72 is used for axially positioning the shaft sleeve 2.
Preferably, the inner wall of the shaft sleeve 2 is provided with more than one shaft sleeve sealing groove 81, and the shaft sleeve sealing groove 81 is provided with a second sealing ring 82.
Preferably, the gland 1 further comprises a mouth 91, the mouth 91 being provided with a sealing gasket 92.
Preferably, the gland 1 is further axially provided with a plurality of uniformly arranged screw holes 10, and the screw holes 10 are used for installing and fixing the gland 1.
The beneficial effects produced by adopting the technical scheme are that:
1) When the rotating shaft of the gear pump or the centrifugal pump is correspondingly connected with the shaft sleeve 2 of the application, the shaft sleeve 2 is driven by the rotating shaft to rotate in the gland 1 so as to rapidly and tightly rub with the wear-resistant ring 32, the shaft sleeve 2 can continuously wear and consume the wear-resistant ring 32 in the process of rubbing, after long-time use, the worn surface of the wear-resistant ring 32 can be thinner and thinner, the tightness of the wear-resistant ring 32 to the shaft sleeve 2 is poorer and worse, and in the process of gradually thinning the wear-resistant ring 32, the first sealing ring 33 provides radial compensation elastic thrust for the wear-resistant ring 32, so that the wear-resistant ring 32 can continuously and tightly rub with the shaft sleeve 2, the tightness of the shaft sleeve 2 is still maintained even if the wear-resistant ring 32 becomes thinner, and the service life of the wear-resistant gland is prolonged.
2) In the process of quick and tight friction between the shaft sleeve 2 and the wear-resistant ring 32, continuous wear consumption can be generated on the shaft sleeve 2, after the wear-resistant sleeve is used for a long time, grooves can be formed even in the wear positions of the outer wall of the shaft sleeve 2 and the wear-resistant ring 32, the outer wall of the whole shaft sleeve can be thinned in a large area, the sealing performance can be reduced or loosened, the hardness of the ceramic coating 4 is far greater than that of the shaft sleeve 2, the shaft sleeve 2 is more durable by utilizing the characteristic that the ceramic coating 4 is more wear-resistant, and the service life of the wear-resistant gland is prolonged.
3) According to the utility model, lubricating oil can enter the oil groove 51 from the oil hole 52, and one surface of the two first sealing rings 33 close to the oil groove 51 is lubricated, so that the abrasion consumption of the first sealing rings 33 is reduced, and the service life of the abrasion-resistant gland is prolonged.
Drawings
FIG. 1 is a schematic cross-sectional view of a wear-resistant gland with automatic wear compensation according to an embodiment;
FIG. 2 is a top view of a wear gland with self-compensating wear according to embodiments;
FIG. 3 is a schematic view of a sleeve structure according to an embodiment;
FIG. 4 is a schematic diagram of a gland structure according to an embodiment;
FIG. 5 is a schematic view of the relationship between the wear ring and the first seal ring.
Wherein, the gland 1; a sleeve 2; gland seal groove 31; wear ring 32; a first seal ring 33; a ceramic coating 4; an oil groove 51; an oil hole 52; a support groove 61; a support sleeve 62; a limit groove 71; a stopper 72; a sleeve seal groove 81; a second seal ring 82; a mouth 91; a sealing gasket 92; screw holes 10.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
This embodiment shows a wear-resistant gland with automatic wear compensation, as shown in fig. 1-5, comprising a gland 1 body and a sleeve 2 rotatable within the gland 1,
More than one gland sealing groove 31 is arranged on the inner wall of the gland 1, and the gland sealing groove 31 radially protrudes out of the inner wall of the gland 1;
The outer side of the gland sealing groove 31 is provided with a wear-resistant ring 32, and the inner side of the gland sealing groove 31 is provided with a first sealing ring 33 for radially compensating the tightness of the wear-resistant ring 32;
the shaft sleeve 2 is in sealing fit with the wear-resistant ring 32.
When the rotating shaft of the gear pump or the centrifugal pump is correspondingly connected with the shaft sleeve 2 of the application, the shaft sleeve 2 is driven by the rotating shaft to rotate in the gland 1 so as to rapidly and tightly rub with the wear-resistant ring 32, the shaft sleeve 2 can continuously wear the wear-resistant ring 32 in the process of rubbing, after long-time use, the worn surface of the wear-resistant ring 32 can be thinner and thinner, the tightness of the wear-resistant ring 32 to the shaft sleeve 2 is poorer and worse, and in the process of gradually thinning the wear-resistant ring 32, the first sealing ring 33 provides radial compensation elastic thrust for the wear-resistant ring 32, so that the wear-resistant ring 32 can continuously and tightly rub with the shaft sleeve 2, the tightness of the shaft sleeve 2 is still maintained even if the wear-resistant ring 32 becomes thinner, and the service life of the wear-resistant gland is prolonged.
Illustratively, as shown in fig. 1 or 3, the outer wall of the sleeve 2 is coated with a ceramic coating 4.
In the process of quick and tight friction between the shaft sleeve 2 and the wear-resistant ring 32, continuous wear consumption can be generated on the shaft sleeve 2, grooves can be even generated on the wear positions of the outer wall of the shaft sleeve 2 and the wear-resistant ring 32 after the wear-resistant gland is used for a long time, the outer wall of the whole shaft sleeve can be thinned in a large area, the sealing performance can be reduced or loosened, the hardness of the ceramic coating 4 is far greater than that of the shaft sleeve 2, the shaft sleeve 2 is more durable by utilizing the characteristic that the ceramic coating 4 is more wear-resistant, and the service life of the wear-resistant gland is prolonged.
Illustratively, as shown in fig. 1 or fig. 4, the gland sealing grooves 31 have two to enhance the tightness with the shaft sleeve 2, and the two gland sealing grooves 31 are respectively provided with the wear-resistant ring 32 and the first sealing ring 33.
Illustratively, as shown in fig. 4, an oil groove 51 is provided between two gland sealing grooves 31 on the inner wall of the gland 1, and the gland 1 is provided with an oil hole 52 communicating with the oil groove 51.
Lubricating oil enters the oil groove 51 from the oil hole 52, and one surface of the two first sealing rings 33 close to the oil groove 51 is lubricated, so that abrasion consumption of the first sealing rings 33 is reduced, and the service life of the wear-resistant gland is prolonged.
Illustratively, as shown in fig. 1 or fig. 4, the inner wall of the gland 1 is provided with a supporting groove 61, the supporting groove 61 radially protrudes out of the inner wall of the gland 1, a supporting sleeve 62 is arranged in the supporting groove 61, and the supporting sleeve 62 is used for radially positioning the shaft sleeve 2.
Illustratively, as shown in fig. 1 or fig. 4, the gland 1 is further provided with a limiting groove 71, a limiting block 72 is disposed in the limiting groove 71, and the limiting block 72 is used for axially positioning the shaft sleeve 2.
As shown in fig. 1 or 3, the inner wall of the shaft sleeve 2 is provided with one or more shaft sleeve sealing grooves 81, and the shaft sleeve sealing grooves 81 are provided with second sealing rings 82, and the second sealing rings 82 are used for sealing the rotating shafts correspondingly connected with the second sealing rings.
Illustratively, as shown in fig. 1, the gland 1 further comprises a mouth 91, said mouth 91 being provided with a sealing gasket 92. The gasket 92 seals, for example, when the gland 1 is mounted on a gear pump.
Illustratively, as shown in fig. 1, the gland 1 is further provided with a plurality of uniformly arranged screw holes 10 in the axial direction, and the screw holes 10 are used for installing and fixing the gland 1. The gland 1 is mounted and fixed on the gear pump through the screw hole 10.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (9)
1. An automatic wear-resistant gland for compensating wear comprises a gland (1) body and a shaft sleeve (2) which can rotate in the gland (1), and is characterized in that,
More than one gland sealing groove (31) is arranged on the inner wall of the gland (1), and the gland sealing groove (31) radially protrudes out of the inner wall of the gland (1);
The outer side of the gland sealing groove (31) is provided with a wear-resistant ring (32), and the inner side of the gland sealing groove (31) is provided with a first sealing ring (33) for radially compensating the tightness of the wear-resistant ring (32);
The shaft sleeve (2) is in sealing fit with the wear-resistant ring (32).
2. The wear-resistant gland for automatic compensation of wear according to claim 1, characterized in that the outer wall of the sleeve (2) is coated with a ceramic coating (4).
3. The wear-resistant gland of claim 2, wherein the gland seal grooves (31) are two, and the two gland seal grooves (31) are respectively provided with the wear-resistant ring (32) and the first sealing ring (33).
4. A wear-resistant gland for automatic wear compensation according to claim 3, characterized in that an oil groove (51) is provided between two gland sealing grooves (31) on the inner wall of the gland (1), and that the gland (1) is provided with an oil hole (52) communicating with the oil groove (51).
5. The wear-resistant gland capable of automatically compensating for wear according to claim 1, wherein the inner wall of the gland (1) is provided with a supporting groove (61), the supporting groove (61) radially protrudes out of the inner wall of the gland (1), a supporting sleeve (62) is arranged in the supporting groove (61), and the supporting sleeve (62) is used for radially positioning the shaft sleeve (2).
6. The wear-resistant gland capable of automatically compensating for wear according to claim 1, wherein the gland (1) is further provided with a limiting groove (71), a limiting block (72) is arranged in the limiting groove (71), and the limiting block (72) is used for axially positioning the shaft sleeve (2).
7. The wear-resistant gland capable of automatically compensating for wear according to claim 1, wherein more than one shaft sleeve sealing groove (81) is arranged on the inner wall of the shaft sleeve (2), and the shaft sleeve sealing groove (81) is provided with a second sealing ring (82).
8. The wear-resistant gland of claim 1, wherein the gland (1) further comprises a mouth (91), the mouth (91) being provided with a sealing gasket (92).
9. The wear-resistant gland with automatic wear compensation according to claim 1, characterized in that the gland (1) is further axially provided with a plurality of evenly arranged screw holes (10), which screw holes (10) are used for mounting and fixing the gland (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322812296.4U CN220816246U (en) | 2023-10-19 | 2023-10-19 | Wear-resistant gland capable of automatically compensating wear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322812296.4U CN220816246U (en) | 2023-10-19 | 2023-10-19 | Wear-resistant gland capable of automatically compensating wear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220816246U true CN220816246U (en) | 2024-04-19 |
Family
ID=90678096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322812296.4U Active CN220816246U (en) | 2023-10-19 | 2023-10-19 | Wear-resistant gland capable of automatically compensating wear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220816246U (en) |
-
2023
- 2023-10-19 CN CN202322812296.4U patent/CN220816246U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0854991B1 (en) | Hydrodynamically lubricated rotary shaft seal with environmental side groove | |
| US6315296B1 (en) | Flangeless retrofittable severe duty seal for a shaft | |
| JP2000097348A (en) | Sealing device | |
| CN220816246U (en) | Wear-resistant gland capable of automatically compensating wear | |
| CN102767624A (en) | Combined sealing part and kinematical sealing structure | |
| KR20040089287A (en) | a sealing unit for a rotary device | |
| CN217434368U (en) | Robot joint combined sealing structure | |
| US20050073110A1 (en) | Neck seal for rolling mill oil film bearing | |
| CN113606340B (en) | Self-compensating sealing ring | |
| CN105402416A (en) | Sealing ring for rotating shaft | |
| CN214146603U (en) | Rotary dynamic sealing device and rotary table | |
| CN102506178B (en) | Mechanical sealing part | |
| CN111927890A (en) | Novel contact type sealing ring and rolling mill supporting roller bearing applying same | |
| CN209565980U (en) | A kind of structure for preventing grinding machine spindle from wearing | |
| CN221075166U (en) | Multistage sealing structure of speed reducer low-speed end revolving body | |
| CN110864116A (en) | Floating integrated mechanical sealing device for high-pressure ash water pump | |
| CN220956805U (en) | Sealing device for spindle of steel cord water tank cone pulley | |
| CN109759945A (en) | A kind of method and structure for preventing grinding machine spindle from wearing | |
| CN110966150A (en) | Oil slip ring of wind driven generator set | |
| CN215370975U (en) | Novel hydraulic seal movable ring structure of internal mixer | |
| CN220415773U (en) | Tower type sealing structure for pump | |
| CN217653230U (en) | Sealing device for high-pressure centrifugal pump | |
| CN212536658U (en) | Feeding sealing structure of wet mill | |
| EP4027029A1 (en) | Bearing seat assembly | |
| CN211599534U (en) | Floating integrated mechanical sealing device for high-pressure ash water pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |