CN200940595Y - Novel serial machine seal structure for light and medium load chemical pump - Google Patents
Novel serial machine seal structure for light and medium load chemical pump Download PDFInfo
- Publication number
- CN200940595Y CN200940595Y CN 200620045425 CN200620045425U CN200940595Y CN 200940595 Y CN200940595 Y CN 200940595Y CN 200620045425 CN200620045425 CN 200620045425 CN 200620045425 U CN200620045425 U CN 200620045425U CN 200940595 Y CN200940595 Y CN 200940595Y
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- CN
- China
- Prior art keywords
- machine seal
- axle sleeve
- machine
- pump
- envelope
- 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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Abstract
The utility model relates to a new type series type machine seal structure used for light medium type load chemical pump, consisting of a pump shaft, an impeller, a pump cover, a machine seal movable ring, a machine seal static ring, a static ring seat, a buffer end machine seal movable ring, a buffer end machine seal static ring, and a machine seal gland. The device is characterized in that the shaft near the impeller is arranged with a front end shaft sleeve, the interface of the front end shaft sleeve and rear end shaft sleeve is arranged with a end face O-shaped cycle, and the rear end shaft sleeve is arranged with the buffer end machine seal movable ring and the buffer end machine seal static ring in turn. The front end shaft sleeve and the rear end shaft sleeve connect with the pump shaft by the same bond. The utility model has the advantages that two sets machine seal are independent relatively, and one set of the two sets machine seal can be dismounted and replaced independently in the process of installation and the further replacement. At the same time, the same bond which is arranged on the shaft operates torque transmission, so the synchronization of the operation can be guaranteed. The process and the installation are simplified, and the reliable performance of the machine seal can be ensured.
Description
Technical field
The utility model relates to a kind of chemical pump machine seal structure, and particularly a kind of light medium-sized load chemical pump is with novel tandem machine seal structure.
Background technique
Chemical pump is because medium is special, and working environment is special, so the Safety performance of pump has been proposed very high requirement, wherein requirement is the highest, also is that the machine that the easiest place that goes wrong is exactly a pump has sealed the position.Usually adopt the structure of tandem machines envelope for some poisonous and volatile media, front end is the working machine envelope, and the rear end is the buffer envelope, is used for external compensator or trimmer pressure jar in case stopping leak leaks, and conventional way is that the machine envelope with two single end faces is installed on the same axle sleeve.Conventional installation method is that work terminal envelope is installed on the axle sleeve earlier, and its integral body is loaded on the pump cover, and back buffering terminal envelope uses bolt again on pump cover, thereby finishes installation.But the problem of Chu Xianing is exactly because on same axle sleeve when installing thereupon, so installing space is very little, the order of installing can not be wrong, and the diameter of axle of work terminal envelope requires must be greater than the buffering terminal envelope diameter of axle, and the size disparity of their diameters of axle is strict, can not too greatly can not be too little, generally must be controlled between 3 ~ 5mm, the processing and the replacing in later stage for axle sleeve all have higher requirement, and be cumbersome.
Summary of the invention
The purpose of this utility model is to solve that chemical pump adopts the tandem machine to seal existing the problems referred to above on same axle sleeve in the prior art, provides a kind of light medium-sized load chemical pump with novel tandem machine seal structure.The utility model designs a kind of light medium-sized load chemical pump with novel tandem machine seal structure, comprise pump shaft, impeller, pump cover, machine envelope rotating ring, machine envelope stationary ring, stationary seat, buffering terminal envelope rotating ring, buffering terminal envelope stationary ring, the machine sealed cover, it is characterized in that: on the axle at nearly impeller place, the front end axle sleeve is arranged, comply with organic envelope rotating ring on the front end axle sleeve, machine envelope stationary ring and stationary seat, on the pump shaft that joins with the front end axle sleeve rear end axle sleeve is arranged, end face O type circle is arranged on the surface of contact of front end axle sleeve and rear end axle sleeve, on the axle sleeve of rear end, be with buffering terminal envelope rotating ring according to this, buffering terminal envelope stationary ring.Front end axle sleeve and rear end axle sleeve connect pump shaft by same key.The utility model has the advantages that two cover machines envelope is relatively independent, can ownly independently install, also just need not consider the diameter of axle difference problem between two cover machines envelope, two shaft rooms carry out end face seal with O shape circle, simultaneously carry out the moment of torsion transmission, guaranteed the synchronism of operation by the same key that is installed on the axle.Install and later replacing process in can be independently a cover machine be wherein sealed and carries out disassembling, assembling and replacing.Simplified Design and Machining and installation like this, also can the assurance machine unfailing performance of envelope.
Description of drawings
Accompanying drawing is a structural representation of the present utility model,
Below in conjunction with drawings and Examples the utility model is elaborated,
Embodiment
Claims (2)
1, a kind of light medium-sized load chemical pump is with novel tandem machine seal structure, comprise pump shaft, impeller, pump cover, machine envelope rotating ring, machine envelope stationary ring, stationary seat, buffering terminal envelope rotating ring, buffering terminal envelope stationary ring, machine sealed cover, it is characterized in that: on the axle at nearly impeller place, the front end axle sleeve is arranged, seal stationary ring and stationary seat according to organic envelope rotating ring, machine on the front end axle sleeve, on the pump shaft that joins with the front end axle sleeve rear end axle sleeve is arranged, end face O type circle is arranged on the surface of contact of front end axle sleeve and rear end axle sleeve, on the axle sleeve of rear end, be with buffering terminal envelope rotating ring, buffering terminal envelope stationary ring according to this.
2, by the described a kind of light medium-sized load chemical pump of claim 1 with novel tandem machine seal structure, it is characterized in that: front end axle sleeve and rear end axle sleeve connect pump shaft by same key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620045425 CN200940595Y (en) | 2006-08-31 | 2006-08-31 | Novel serial machine seal structure for light and medium load chemical pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620045425 CN200940595Y (en) | 2006-08-31 | 2006-08-31 | Novel serial machine seal structure for light and medium load chemical pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200940595Y true CN200940595Y (en) | 2007-08-29 |
Family
ID=38746772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620045425 Expired - Fee Related CN200940595Y (en) | 2006-08-31 | 2006-08-31 | Novel serial machine seal structure for light and medium load chemical pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200940595Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909231A (en) * | 2019-01-22 | 2022-08-16 | 蓝箭航天空间科技股份有限公司 | Ultralow-temperature bidirectional static sealing structure |
-
2006
- 2006-08-31 CN CN 200620045425 patent/CN200940595Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909231A (en) * | 2019-01-22 | 2022-08-16 | 蓝箭航天空间科技股份有限公司 | Ultralow-temperature bidirectional static sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070829 Termination date: 20110831 |