CN209704904U - A kind of multistage support sealing structure of three-dimensional centrifugal multistage pump multiple centrifugal pump - Google Patents
A kind of multistage support sealing structure of three-dimensional centrifugal multistage pump multiple centrifugal pump Download PDFInfo
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- CN209704904U CN209704904U CN201920015870.4U CN201920015870U CN209704904U CN 209704904 U CN209704904 U CN 209704904U CN 201920015870 U CN201920015870 U CN 201920015870U CN 209704904 U CN209704904 U CN 209704904U
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- Prior art keywords
- limit sleeve
- nut
- multistage
- shaft
- fixedly welded
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Abstract
The utility model discloses a kind of multistage support sealing structures of three-dimensional centrifugal multistage pump multiple centrifugal pump, including shaft, the first limit sleeve, fixed ring and the second limit sleeve, the shaft is peripherally pivoted to be socketed with the first limit sleeve, first limit sleeve periphery middle part is fixedly welded with fixed ring, and fixed ring side top and bottom end are fixedly welded with the first electric telescopic rod；The utility model passes through the first nut of setting, first nut and the second nut are moved at the inclined-plane of the first limit sleeve two sides, the inclined-plane of the first limit sleeve two sides can be squeezed, the inclined-plane of first limit sleeve two sides inwardly squeezes, the gap between the first limit sleeve and shaft can be reduced, considerably increase leakproofness, mobile first nut, the second nut and third nut can reduce the gap between shaft, to prevent increasing the working time because replacing mechanical part, to prevent influencing the duration, the normal use for influencing device for a long time is avoided, while reducing the process of replacement.
Description
Technical field
The utility model relates to be centrifuged pump technical field, the multistage support sealing of specially a kind of three-dimensional centrifugal multistage pump multiple centrifugal pump
Structure.
Background technique
Centrifugal pump is to be rotated using impeller and make water that centrifugal movement occur come work.Water pump is before activation, it is necessary to make to pump
It is full of water in shell and suction hose, then starts motor, pump shaft impeller and water is made to do high speed rotary motion, centrifugation fortune occurs for water
It is dynamic, it is thrown toward impeller outer edge, the runner through volute pump case flows into the pressure pipe road of water pump, and centrifugal pump is divided into centrifugal pump of single stage type and more
Grade centrifugal pump, wherein centrifugal multistage pump multiple centrifugal pump is that the pump of more than two centrifugal pumps with said function gathers together, and fluid is logical
In road structure, show that the medium pressure relief opening of the first order is communicated with the import of the second level, the medium pressure relief opening and third of the second level
The import of grade communicates, and such concatenated mechanism forms centrifugal multistage pump multiple centrifugal pump, and centrifugal multistage pump multiple centrifugal pump is vertical structure, has occupied area
Small, pump center of gravity coincides with pump foot center, runs smoothly, is with small vibration, the feature that the service life is long, centrifugal multistage pump multiple centrifugal pump pair in the prior art
There is defects for the sealing of shaft, such as:
There is deficiencies in the sealing of shaft for centrifugal multistage pump multiple centrifugal pump in the prior art, currently, the centrifugal multistage pump multiple centrifugal pump used
It is all to be limited using mechanical part, such mode can need replacing after prolonged use because of abrasion, big in this way
The service efficiency of device is reduced greatly, the process for increasing replacement will affect normal use, will affect the duration in this way, so nothing
Method meets needed for the prior art.
Utility model content
The purpose of this utility model is to provide a kind of multistage support sealing structures of three-dimensional centrifugal multistage pump multiple centrifugal pump, to solve
The problems mentioned above in the background art.
To achieve the above object, the utility model provides the following technical solutions: a kind of multistage of three-dimensional centrifugal multistage pump multiple centrifugal pump
Support sealing structure, including shaft, the first limit sleeve, fixed ring and the second limit sleeve, the shaft is peripherally pivoted to be socketed with the
One limit sleeve, the first limit sleeve periphery middle part are fixedly welded with fixed ring, and fixed ring side top and bottom end are solid
Surely it is welded with the first electric telescopic rod, first electric telescopic rod one end is fixedly welded with the first nut, first spiral shell
Cap inner wall is slidably socketed in the first limit sleeve periphery, and first nut one end offers the first skewed slot, and the fixed ring is another
Side top and bottom end are fixedly welded with the second electric telescopic rod, and second electric telescopic rod one end is fixedly welded with the second spiral shell
Cap, the second nut inner wall are slidably socketed in the first limit sleeve periphery, and second nut one end offers the second skewed slot.
Preferably, first limit sleeve two sides take the form of inclined plane state, and the first limit sleeve two sides are horizontal by 21
Spend angle.
Preferably, first limit sleeve both ends are fixedly welded with the second limit sleeve, and the second limit sleeve inner wall turns
It is dynamic to be socketed in shaft periphery.
Preferably, the second limit sleeve one side periphery takes the form of inclined plane state, and the second limit sleeve at the first limit sleeve
Side is horizontal by 13 degree of angles.
Preferably, second limit sleeve other side outer periphery threads are connected with third nut, and the third nut is close to
Third skewed slot is offered at one limit sleeve.
Compared with prior art, the utility model has the beneficial effects that
The utility model is by being arranged the first electric telescopic rod and the second electric telescopic rod in fixed ring two sides, when in use
First nut and the second nut are moved at the inclined-plane of the first limit sleeve two sides, at this moment can squeeze the oblique of the first limit sleeve two sides
Face can reduce the gap between the first limit sleeve and shaft, considerably increase so that the inclined-plane of the first limit sleeve two sides inwardly squeezes
Leakproofness, if there is abrasion the case where need to only move the first nut, the second nut and third nut can reduce with shaft it
Between gap to prevent influencing the duration, avoid influencing device for a long time to prevent increasing the working time because replacing mechanical part
Normal use, while reducing the process of replacement.
Detailed description of the invention
Fig. 1 is the main view cut away view of the utility model；
Fig. 2 is the side view of the utility model third nut；
Fig. 3 is the main view of the utility model third nut.
In figure: 101- shaft；The first limit sleeve of 201-；202- fixed ring；The first electric telescopic rod of 203-；The first spiral shell of 204-
Cap；The first skewed slot of 205-；The second electric telescopic rod of 206-；The second nut of 207-；The second skewed slot of 208-；The second limit sleeve of 301-；
302- third nut；303- third skewed slot.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of multistage support of three-dimensional centrifugal multistage pump multiple centrifugal pump
Sealing structure, including shaft 101, the first limit sleeve 201, fixed ring 202 and the second limit sleeve 301,101 periphery of shaft turn
Dynamic to be socketed with the first limit sleeve 201, the 201 periphery middle part of the first limit sleeve is fixedly welded with fixed ring 202, the fixed ring
202 sides top and bottom end are fixedly welded with the first electric telescopic rod 203, and described first electric telescopic rod, 203 one end is solid
Surely it is welded with the first nut 204,204 inner wall of the first nut is slidably socketed in 201 periphery of the first limit sleeve, first spiral shell
204 one end of cap offers the first skewed slot 205, and it is electronic that 202 other side top of fixed ring is fixedly welded with second with bottom end
Telescopic rod 206, described second electric telescopic rod, 206 one end are fixedly welded with the second nut 207,207 inner wall of the second nut
It is slidably socketed in 201 periphery of the first limit sleeve, described second nut, 207 one end offers the second skewed slot 208.
First limit sleeve, 201 two sides take the form of inclined plane state, and 201 two sides of the first limit sleeve are horizontal by two elevenths
Angle, 201 both ends of the first limit sleeve are fixedly welded with the second limit sleeve 301, the 301 inner wall turning set of the second limit sleeve
It connects in the periphery of shaft 101,301 one side periphery of the second limit sleeve takes the form of inclined plane state, and second at the first limit sleeve 201
301 side of limit sleeve is connected with third nut horizontal by 13 degree of angles, 301 other side outer periphery threads of the second limit sleeve
302, the third nut 302 offers third skewed slot 303 at the first limit sleeve.
Working principle: opening the first electric telescopic rod 203 when in use and the second electric telescopic rod 206 drives the first nut
204 and second nut 207 be moved at the inclined-plane of 201 two sides of the first limit sleeve, at this moment can squeeze 201 two sides of the first limit sleeve
Inclined-plane can reduce the seam between the first limit sleeve 201 and shaft 101 so that the inclined-plane of 201 two sides of the first limit sleeve inwardly squeezes
Gap, while turning third nut 302 is moved to third nut 302 at the inclined-plane of second limit sleeve 301, at this moment the second limit sleeve
It is inwardly squeezed at 301 inclined-plane, the gap that 301 inclined-plane of the second limit sleeve is between shaft 101 can be reduced, considerably increased close
Feng Xing, if there is abrasion the case where need to only move the first nut 203, the second nut 207 and third nut 302 can reduce with
Gap between shaft 101, to prevent influencing the duration, avoids prolonged to prevent increasing the working time because replacing mechanical part
The normal use of device is influenced, while reducing the process of replacement.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of multistage support sealing structure of three-dimensional centrifugal multistage pump multiple centrifugal pump, including it is shaft (101), the first limit sleeve (201), solid
Determine ring (202) and the second limit sleeve (301), it is characterised in that: the shaft (101) is peripherally pivoted to be socketed with the first limit sleeve
(201), the first limit sleeve (201) periphery middle part is fixedly welded with fixed ring (202), fixed ring (202) the side top
End is fixedly welded with the first electric telescopic rod (203) with bottom end, and described first electric telescopic rod (203) one end is fixedly welded
Have the first nut (204), the first nut (204) inner wall is slidably socketed in the first limit sleeve (201) periphery, first spiral shell
Cap (204) one end offers the first skewed slot (205), and fixed ring (202) other side top and bottom end are fixedly welded with the
Two electric telescopic rods (206), described second electric telescopic rod (206) one end are fixedly welded with the second nut (207), and described second
Nut (207) inner wall is slidably socketed in the first limit sleeve (201) periphery, and described second nut (207) one end offers second tiltedly
Slot (208).
2. a kind of multistage support sealing structure of three-dimensional centrifugal multistage pump multiple centrifugal pump according to claim 1, it is characterised in that: institute
It states the first limit sleeve (201) two sides to take the form of inclined plane state, and the first limit sleeve (201) two sides are horizontal by two eleventh angles.
3. a kind of multistage support sealing structure of three-dimensional centrifugal multistage pump multiple centrifugal pump according to claim 1, it is characterised in that: institute
It states the first limit sleeve (201) both ends to be fixedly welded with the second limit sleeve (301), the second limit sleeve (301) inner wall rotation
It is socketed in shaft (101) periphery.
4. a kind of multistage support sealing structure of three-dimensional centrifugal multistage pump multiple centrifugal pump according to claim 3, it is characterised in that: institute
The second limit sleeve (301) one side periphery is stated to take the form of inclined plane at the first limit sleeve (201) state, and the second limit sleeve (301) one
Side is horizontal by 13 degree of angles.
5. a kind of multistage support sealing structure of three-dimensional centrifugal multistage pump multiple centrifugal pump according to claim 3, it is characterised in that: institute
It states the second limit sleeve (301) other side outer periphery threads to be connected with third nut (302), the third nut (302) is close to first
Third skewed slot (303) are offered at limit sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920015870.4U CN209704904U (en) | 2019-01-07 | 2019-01-07 | A kind of multistage support sealing structure of three-dimensional centrifugal multistage pump multiple centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920015870.4U CN209704904U (en) | 2019-01-07 | 2019-01-07 | A kind of multistage support sealing structure of three-dimensional centrifugal multistage pump multiple centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209704904U true CN209704904U (en) | 2019-11-29 |
Family
ID=68638307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920015870.4U Expired - Fee Related CN209704904U (en) | 2019-01-07 | 2019-01-07 | A kind of multistage support sealing structure of three-dimensional centrifugal multistage pump multiple centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209704904U (en) |
-
2019
- 2019-01-07 CN CN201920015870.4U patent/CN209704904U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191129 Termination date: 20210107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |