CN204299929U - Inlet high pressure pump machine seals axle sleeve - Google Patents
Inlet high pressure pump machine seals axle sleeve Download PDFInfo
- Publication number
- CN204299929U CN204299929U CN201420798680.1U CN201420798680U CN204299929U CN 204299929 U CN204299929 U CN 204299929U CN 201420798680 U CN201420798680 U CN 201420798680U CN 204299929 U CN204299929 U CN 204299929U
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- machine
- sleeve
- machine envelope
- shaft shoulder
- 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
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to mechanical engineering pump technical field, specifically a kind of inlet high pressure pump machine seals axle sleeve, be provided with machine envelope axle sleeve, machine envelope axle sleeve outer face is sealed by machine successively and is installed table top, this lid installs table top and locating ring draw-in groove is formed, it is characterized in that machine envelope axle sleeve front end is provided with shaft shoulder positioning sleeve, described shaft shoulder positioning sleeve internal diameter is less than machine envelope sleeve diameter, axle sleeve and shaft shoulder positioning sleeve internal diameter formation shoulder hole is sealed to make machine, located by the pump shaft shaft shoulder when assembling, solve and cause sealing unstable deficiency by machine envelope axle sleeve by pressing from both sides blue location, there is structure simple, reliable, stable, the advantages such as long service life.
Description
Technical field
The utility model relates to mechanical engineering pump technical field, and specifically a kind of inlet high pressure pump machine seals axle sleeve.
Background technology
As everyone knows, pressure reduction is there is between pump inner fluid and the outer air of pump, fluid is outwards revealed along the gap between axle and housing, therefore shaft seal is requisite structure in pump, in the middle of the working environment that pump machine seal pressure is very high, sealing problem is difficult to solve, very high to the requirement of machine envelope, machine envelope sleeve diameter in existing machine sealing chamber is cylindrical hole, outer face is sealed by machine successively and is installed table top, this lid installs table top, locating ring draw-in groove and folder blue clamping table top are formed, machine seals normally cunning and is contained on pump shaft, through the folder orchid location of the machine envelope axle sleeve other end, machine envelope axle sleeve bears axial force and bears by the blue axle sleeve of assembling generation of folder and the frictional force of between centers, this frictional force is relevant to the fastening operating mode of assembler, under conventional operating mode, this annular seal space pressure energy ensures the effective sealing of machine envelope, when producing high pressure in machine sealing chamber, the stability state of this machine envelope axle sleeve decides by the technical ability of assembler itself and fastening operating mode, therefore, the anti-high pressure ability of this machine envelope axle sleeve is very unstable, the reliability of the pump housing and security is caused to be greatly affected, and then cause shorten service life.
Summary of the invention
The purpose of this utility model solves above-mentioned the deficiencies in the prior art, provides that a kind of structure is simple, reliable, stable, the inlet high pressure pump machine of long service life seals axle sleeve.
The utility model solves the technical scheme that its technical problem adopts:
A kind of inlet high pressure pump machine seals axle sleeve, be provided with machine envelope axle sleeve, machine envelope axle sleeve outer face is sealed by machine successively and is installed table top, this lid installs table top and locating ring draw-in groove is formed, it is characterized in that machine envelope axle sleeve front end is provided with shaft shoulder positioning sleeve, described shaft shoulder positioning sleeve internal diameter is less than machine envelope sleeve diameter, to make machine seal axle sleeve and shaft shoulder positioning sleeve internal diameter formation shoulder hole, being located by the pump shaft shaft shoulder when assembling, solving the deficiency causing sealing unstable by pressing from both sides blue location by machine envelope axle sleeve.
The utility model, owing to adopting said structure, has the advantages such as structure is simple, reliable, stable, long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art.
Fig. 2 is structural representation of the present utility model.
Reference numeral: machine envelope axle sleeve 1, shaft shoulder positioning sleeve 2, pump shaft 3.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is further illustrated:
As shown in drawings, a kind of inlet high pressure pump machine seals axle sleeve, be provided with machine envelope axle sleeve 1, machine envelope axle sleeve 1 outer face is sealed by machine successively and is installed table top, this lid installs table top and locating ring draw-in groove is formed, it is characterized in that machine envelope axle sleeve 1 front end is provided with shaft shoulder positioning sleeve 2, described shaft shoulder positioning sleeve 2 internal diameter is less than machine envelope axle sleeve 1 internal diameter, axle sleeve 1 and shaft shoulder positioning sleeve 2 internal diameter formation shoulder hole is sealed to make machine, being located by the pump shaft shaft shoulder when assembling, solving and being caused sealing unstable deficiency by pressing from both sides blue location by machine envelope axle sleeve.
The utility model when mounted, machine can be sealed axle sleeve 1 is enclosed within pump shaft 3, and shaft shoulder positioning sleeve 2 is stuck in the shaft shoulder place of pump shaft 3, then at the outside fitting machine envelope of machine envelope axle sleeve 1, lid and locating ring, make machine seal axle sleeve 1 steady operation under elevated pressure conditions, considerably increase reliability and the security of machine envelope.
The utility model, owing to adopting said structure, has the advantages such as structure is simple, reliable, stable, long service life.
Claims (1)
1. an inlet high pressure pump machine seals axle sleeve, be provided with machine envelope axle sleeve, machine envelope axle sleeve outer face is sealed by machine successively and is installed table top, lid installs table top and locating ring draw-in groove is formed, it is characterized in that machine envelope axle sleeve front end is provided with shaft shoulder positioning sleeve, described shaft shoulder positioning sleeve internal diameter is less than machine envelope sleeve diameter, seals axle sleeve and shaft shoulder positioning sleeve internal diameter formation shoulder hole to make machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420798680.1U CN204299929U (en) | 2014-12-17 | 2014-12-17 | Inlet high pressure pump machine seals axle sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420798680.1U CN204299929U (en) | 2014-12-17 | 2014-12-17 | Inlet high pressure pump machine seals axle sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204299929U true CN204299929U (en) | 2015-04-29 |
Family
ID=53105473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420798680.1U Expired - Fee Related CN204299929U (en) | 2014-12-17 | 2014-12-17 | Inlet high pressure pump machine seals axle sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204299929U (en) |
-
2014
- 2014-12-17 CN CN201420798680.1U patent/CN204299929U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20181217 |