CN202301155U - Oil seal device for pump - Google Patents
Oil seal device for pump Download PDFInfo
- Publication number
- CN202301155U CN202301155U CN2011204063891U CN201120406389U CN202301155U CN 202301155 U CN202301155 U CN 202301155U CN 2011204063891 U CN2011204063891 U CN 2011204063891U CN 201120406389 U CN201120406389 U CN 201120406389U CN 202301155 U CN202301155 U CN 202301155U
- Authority
- CN
- China
- Prior art keywords
- maze
- sleeve
- wall
- bearing
- groove
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to the technical field of a centrifugal pump, in particular to an oil seal device for a pump, which is provided with a pump shaft, a bearing and a bearing press cover and characterized in that a maze sleeve, an O-shaped ring and a fastening nut are sleeved on the pump shaft. A sealing groove is arranged on the circumference of an inner wall of the maze sleeve, at least two annular grooves are arranged on the circumference of an outer wall of the maze sleeve, a sealing platform is arranged at one end of the maze sleeve, and an annular maze boss is arranged on an inner end face of the sealing platform. A groove matching with the annular maze boss is arranged on an outer end face of a bearing pressing cover, an air groove corresponding to the sealing groove of the inner wall of the maze sleeve is arranged on the inner wall, the O-shaped ring is embedded in the sealing groove on the inner wall of the maze sleeve, an inner end of the maze sleeve is fixedly connected with the bearing, leakage of lubricating oil is prevented, an outer end of the maze sleeve is fixed with the fastening nut, the inner wall of the maze sleeve is connected with the pump shaft in sealing mode through the O-shaped ring, the outer wall of the maze sleeve is in clearance fit with the bearing press cover, the sealing platform is in clearance fit with the groove of the bearing press cover through the annular maze boss, so that relative rotation between the maze sleeve and the bearing press cover does not cause friction. During a relative rotation process, an air wall is formed, and the leakage of the lubricating oil is prevented effectively.
Description
Technical field
The utility model relates to the centrifugal pump technical field, and specifically a kind of pump is used oil-sealing arrangement.
Background technique
Traditional single stage single-suction centrifugal pump type of shaft sealing generally adopts the structural type of outside framework oil seal; Outside framework oil seal is installed between bearing gland and the dustproof dish; Its deficiency is: 1, dustproof dish rotate together with axle and bearing gland do not change; Cause that relative friction is arranged between them two, influence axle envelope effect, sealability is low; Also relatively rotate between 2 outside framework oil seals and the bearing gland, cause a series of problems such as heating easily.
Summary of the invention
The purpose of the utility model is the deficiency that solves above-mentioned existing technology, provide a kind of rational in infrastructure, the axle envelope is effective, do not have friction, do not have leak, pump that sealability is high uses oil-sealing arrangement.
The utility model solves the technological scheme that its technical problem adopted:
A kind of pump is used oil-sealing arrangement, is provided with pump shaft, bearing, bearing gland, it is characterized in that being provided with labyrinth bush, O type circle and locknut; Labyrinth bush inwall circumference is provided with sealed groove, and the outer wall circumference is provided with at least two annular grooves, and labyrinth bush one end is provided with the sealing platform; Sealing platform interior edge face is provided with ring-type labyrinth boss, and the bearing gland exterior edge face is provided with the air grooves that matches with annular groove, and O type circle is embedded in the sealed groove of labyrinth bush inwall; Labyrinth bush is inner to be connected with bearing fixing, prevents oil leak, and outer end and locknut fix; Inwall is connected with shaft seal through O type circle, outer wall and bearing gland Spielpassung, and the sealing platform is through the groove Spielpassung of ring-type labyrinth boss and bearing gland; So that the relative running between labyrinth bush and the bearing gland does not produce friction; In relative operation process, form air wall, effectively stop oil leak.
The utility model is owing to adopt said structure, have rational in infrastructure, the axle envelope is effective, do not have friction, do not have leak, the sealability advantages of higher.
Description of drawings
Accompanying drawing is the structural representation of the utility model.
Reference character: pump shaft 1, bearing 2, bearing gland 3, labyrinth bush 4, O type circle 5, locknut 6.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
Shown in accompanying drawing, a kind of pump is used oil-sealing arrangement, is provided with pump shaft 1, bearing 2, bearing gland 3; It is characterized in that being provided with labyrinth bush 4, O type circle 5 and locknut 6, labyrinth bush 4 inwall circumference are provided with sealed groove, and the outer wall circumference is provided with at least two annular grooves; Labyrinth bush 4 one ends are provided with the sealing platform, and sealing platform interior edge face is provided with ring-type labyrinth boss, and bearing gland 3 exterior edge faces are provided with the air grooves that matches with annular groove; O type circle 5 is embedded in the sealed groove of labyrinth bush 4 inwalls, and labyrinth bush 4 the inners are fixedly connected with bearing 2, prevent oil leak; Outer end and locknut 6 fix, and inwall is tightly connected outer wall and bearing gland 3 Spielpassung through O type circle 5 and pump shaft 1; The sealing platform is through the groove Spielpassung of ring-type labyrinth boss and bearing gland 3, so that the relative running between labyrinth bush 4 and the bearing gland 3 does not produce friction, in relative operation process; Form air wall, effectively stop oil leak.
The utility model in the running; Owing to form running relatively between labyrinth bush 4 and the bearing gland 3; Form air wall between gap, annular groove and the air grooves between labyrinth bush 4 and the bearing gland 3, stop the leakage of lubricant oil effectively, and seal between the 5 pairs of labyrinth bush 4 of O type circle inlayed through labyrinth bush 4 inwalls and the pump shaft 1; Another approach that prevents lubricant oil leaks, and reaches the purpose that the axle envelope is effective, sealability is high.
The utility model is owing to adopt said structure, have rational in infrastructure, the axle envelope is effective, do not have friction, do not have leak, the sealability advantages of higher.
Claims (1)
1. a pump is used oil-sealing arrangement, is provided with pump shaft, bearing, bearing gland, it is characterized in that being arranged with on the pump shaft labyrinth bush, O type circle and locknut; Labyrinth bush inwall circumference is provided with sealed groove, and the outer wall circumference is provided with at least two annular grooves, and labyrinth bush one end is provided with the sealing platform; Sealing platform interior edge face is provided with ring-type labyrinth boss; The bearing gland exterior edge face is provided with the air grooves that matches with annular groove, and O type circle is embedded in the sealed groove of labyrinth bush inwall, and labyrinth bush is inner to be connected with bearing fixing; Outer end and locknut fix; Inwall is connected with shaft seal through O type circle, outer wall and bearing gland Spielpassung, and the sealing platform is through the groove Spielpassung of ring-type labyrinth boss and bearing gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204063891U CN202301155U (en) | 2011-10-24 | 2011-10-24 | Oil seal device for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204063891U CN202301155U (en) | 2011-10-24 | 2011-10-24 | Oil seal device for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301155U true CN202301155U (en) | 2012-07-04 |
Family
ID=46370064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204063891U Expired - Fee Related CN202301155U (en) | 2011-10-24 | 2011-10-24 | Oil seal device for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301155U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640733A (en) * | 2017-01-09 | 2017-05-10 | 上海第水泵厂有限公司 | Water-cooling bearing component of vertical type centrifugal pump |
| CN110925433A (en) * | 2018-09-20 | 2020-03-27 | 常州艾布纳机械有限公司 | Coulter mixer main shaft seal structure |
-
2011
- 2011-10-24 CN CN2011204063891U patent/CN202301155U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640733A (en) * | 2017-01-09 | 2017-05-10 | 上海第水泵厂有限公司 | Water-cooling bearing component of vertical type centrifugal pump |
| CN110925433A (en) * | 2018-09-20 | 2020-03-27 | 常州艾布纳机械有限公司 | Coulter mixer main shaft seal structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104061317B (en) | Gear reduction unit high speed shaft non-contacting seal device | |
| CN204828313U (en) | Bearing seal device suitable for high rotational speed floating axle | |
| CN203967878U (en) | A kind of dust-proof motor | |
| CN202301155U (en) | Oil seal device for pump | |
| CN205036843U (en) | Gear box input shaft's seal structure | |
| CN103062109A (en) | Oil seal device for pump | |
| CN206280387U (en) | The labyrinth oil-sealing arrangement of High-temperature Magnetic Pump bearing housing | |
| CN201802625U (en) | Novel sealing structure of Roots blower | |
| CN202762633U (en) | Thin oil synchronization vibration exciter | |
| CN202381688U (en) | Sealing structure of drive shaft end | |
| CN201934674U (en) | Shaft seal structure of framework oil seals with lubricating mode | |
| CN203374482U (en) | Framework sealing assembly | |
| CN205479352U (en) | A oil blanket for rotary shaft seal | |
| CN205371634U (en) | Rotation axis rotary seal structure | |
| CN103818725B (en) | Mechanical Sealed Type rotovalve | |
| CN203686139U (en) | All-terrain axle transmission sealing structure | |
| CN202991878U (en) | Sealing structure of combined part of transmission end cover and inner oil seal | |
| CN202374096U (en) | Sealing structure for motor bearing | |
| CN201651040U (en) | Bearing with iron space ring | |
| CN201417988Y (en) | Motor shaft end seal of direct-connected planetary cone disc type stepless speed changer | |
| CN204341904U (en) | A kind of carrying roller of magnetic fluid sealing | |
| CN203796759U (en) | Bearing seal ring | |
| CN204118921U (en) | A kind of outer rotor motor | |
| CN204004331U (en) | Gear reduction unit high speed shaft noncontact seal device | |
| CN205136383U (en) | Straightening machine is with sealed biserial cylindrical roller bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20151024 |
|
| EXPY | Termination of patent right or utility model |