CN2217131Y - Shaft of pump with easily assembling function - Google Patents
Shaft of pump with easily assembling function Download PDFInfo
- Publication number
- CN2217131Y CN2217131Y CN 94223533 CN94223533U CN2217131Y CN 2217131 Y CN2217131 Y CN 2217131Y CN 94223533 CN94223533 CN 94223533 CN 94223533 U CN94223533 U CN 94223533U CN 2217131 Y CN2217131 Y CN 2217131Y
- Authority
- CN
- China
- Prior art keywords
- shaft
- screw
- pump
- taper pin
- pump shaft
- 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
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a pump shaft with an easily assembling function, composed of a supporting shaft and an impeller shaft which are tightly fitted in concentricity. The two shafts are tightly screwed through a screw rod and a screw nut. Moreover, a taper pin passes through and locks the two shafts in radial direction. When maintenance is required, the taper pin can be pulled out. A revolving shaft bar or the screw nut can be inversely pushed to a thread opening for disengaging. Thus, the two sections of the supporting shaft and the impeller shaft can be separated. Therefore, the utility model can conveniently carry out the maintenance operations such as bearing replacement or sealing, etc.
Description
The utility model belongs to pump or axle, particularly a kind of easy-to-mount pump shaft.
In the maintenance work of cantilever type centrifugal pump, the workload of its mechanical seal accounts for 64%, and the workload of bearing accounts for 17%.When mechanical seal leakage and bearing break down when needing repairing, need pump cover, whole rotor, impeller, interstage diaphragm, inter-stage axle sleeve etc. are all pulled down one by one, can overhaul or change mechanical seal and bearing, very miscellaneous, labor intensity is big and dangerous.
Existing solution all is to try every possible means on the material of mechanical seal and bearing, require sealing material and bearing material is wear-resistant, self-lubricating effect is good, highly effective mechanically-sealing structure (as sylphon seal) etc., prolong the service time of sealing and bearing with this, reduce maintenance load.But the workload and the difficulty of every pump maintenance are still very big, bring very big labor intensity to the maintenance man.
The purpose of this utility model is that a kind of improved easy-to-mount pump shaft will be provided, and it can fast and effeciently solve the replacing of mechanical seal and bearing, reduces maintenance man's labor intensity.
Pump shaft of the present utility model is achieved in that axle disconnected between mechanical seal cover and bearing housing gland and makes it become two sections concentric shafts, two sections axles connect with high precision screw, and turn round with taper pin locking and transmission and to refuse, thisly to improve one's methods simple and easy to doly, effect is fairly obvious.
When mechanical seal leakage and damage of bearings need overhaul or change, as long as pump cover is pulled down with the bolt that the bearing housing support is connected, again the taper pin on the axle is taken off, on pump cover tight two guiding screw poles, with the plate spanner on impeller shaft, press the opposite direction rotary pump spindle nose of pump operation, can take off bearing housing, at this moment just can overhaul or change mechanical seal and bearing.
Prove that through experiment (is example with 50YII-60 * 2 type pumps) it is successful transforming, the intensity of axle can meet the demands.The flow of pump, lift all reach requirement, can save 3-5 doubly on engineering time, can reduce labor intensity 2-3 doubly.
Figure of description is the structural representation of easy-to-mount pump shaft of the present utility model.
The specific embodiment of easy-to-mount pump shaft of the present utility model is: this pump shaft is made of supporting axle (1) and (2) two sections concentric drive fits of impeller shaft; Two sections axles screw with screw (4) by screw mandrel (3) and are connected, and have taper pin (5) that both are radially gone here and there locking; When needing maintenance, as long as extract taper pin (5) out, back-off rotating shaft rod (3) or screw (4) withdraw from until the silk mouth, make supporting axle (1) and impeller shaft (2) two intersegmental disintegration, can change maintenance operatioies such as bearing or sealing easily.
Claims (3)
1, a kind of easy-to-mount pump shaft is characterized in that the pump shaft that this axle is made of supporting axle (1) and (2) two sections of impeller shafts, with one heart mutual drive fit.
2, pump shaft as claimed in claim 1 is characterized in that supporting axle (1) and impeller shaft (2) are connected by the screw thread of screw mandrel of termination (3) and screw (4) separately, and has and radially go here and there the locking taper pin (5) of screw mandrel (3) and screw (4).
3, pump shaft as claimed in claim 1 or 2, it is characterized in that can be by extracting taper pin (5) out, back-off rotary screw rod (3) or screw (4) and make supporting axle (1) and impeller shaft (2) two sections axles of disintegration mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94223533 CN2217131Y (en) | 1994-09-29 | 1994-09-29 | Shaft of pump with easily assembling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94223533 CN2217131Y (en) | 1994-09-29 | 1994-09-29 | Shaft of pump with easily assembling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2217131Y true CN2217131Y (en) | 1996-01-10 |
Family
ID=33837193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94223533 Expired - Fee Related CN2217131Y (en) | 1994-09-29 | 1994-09-29 | Shaft of pump with easily assembling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2217131Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591065A (en) * | 2018-05-10 | 2018-09-28 | 约翰斯顿流体科技（无锡）有限公司 | A kind of dual horizontal shell centrifugal pump |
| CN108591075A (en) * | 2018-05-10 | 2018-09-28 | 约翰斯顿流体科技（无锡）有限公司 | A kind of single-stage associated mode centrifugal pump |
| CN108708874A (en) * | 2018-07-06 | 2018-10-26 | 无锡市海星船舶动力有限公司 | The ship compressor rotor shaft of dual segment structure formula |
-
1994
- 1994-09-29 CN CN 94223533 patent/CN2217131Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591065A (en) * | 2018-05-10 | 2018-09-28 | 约翰斯顿流体科技（无锡）有限公司 | A kind of dual horizontal shell centrifugal pump |
| CN108591075A (en) * | 2018-05-10 | 2018-09-28 | 约翰斯顿流体科技（无锡）有限公司 | A kind of single-stage associated mode centrifugal pump |
| CN108708874A (en) * | 2018-07-06 | 2018-10-26 | 无锡市海星船舶动力有限公司 | The ship compressor rotor shaft of dual segment structure formula |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |