CN107339253A - A kind of double-suction pump impeller axial positioning structure - Google Patents
A kind of double-suction pump impeller axial positioning structure Download PDFInfo
- Publication number
- CN107339253A CN107339253A CN201710426599.9A CN201710426599A CN107339253A CN 107339253 A CN107339253 A CN 107339253A CN 201710426599 A CN201710426599 A CN 201710426599A CN 107339253 A CN107339253 A CN 107339253A
- Authority
- CN
- China
- Prior art keywords
- hole
- limited block
- impeller
- double
- axis
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/20—Mounting rotors on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of double-suction pump impeller axial positioning structure, it is related to double entry pump field, including pump shaft and impeller, also include holding screw and limited block, the pump shaft is provided with a mounting hole, and the impeller set is on pump shaft, and the position corresponding with mounting hole is provided with a through hole on the front shroud of the impeller, the axis of the through hole is parallel with the axis of mounting hole, and the limited block is arranged on inside through hole and extended downward into inside mounting hole；A set screw hole parallel with pump shaft axis is additionally provided with the front shroud, the set screw hole runs through limited block, and limited block is fixed on front shroud by the holding screw by set screw hole；The present invention has the advantages that simple in construction, convenient disassembly, operates steadily, be safe and reliable, combines limited block and front shroud by holding screw and is fixed into an entirety, the front end of limited block is stuck on mounting hole, can effectively prevent the axial float of impeller.
Description
Technical field
The present invention relates to double entry pump field, and in particular to a kind of double-suction pump impeller axial positioning structure.
Background technology
Because the exploitation of petroleum chemical industry, production, processing carry certain danger, so ensureing the same of its performance
When, the safe and reliable operation of device will necessarily turn into the following main development trend of petrochemical process pump.
In the past traditional double-suction pump impeller axial restraint divides semi-loop, very strict to its requirement on machining accuracy, no
The axial float that causes impeller will be then easy to, so as to influence the safe and reliable of the performance of pump and operation.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of double-suction pump impeller axial positioning structure, impeller is prevented
Axial float.
To realize object above, the present invention is achieved by the following technical programs：A kind of double-suction pump impeller axially position
Structure, including pump shaft and impeller, in addition to holding screw and limited block, the pump shaft are provided with a mounting hole, the impeller set
On pump shaft, the position corresponding with mounting hole is provided with a through hole, the axis and peace of the through hole on the front shroud of the impeller
It is parallel to fill the axis in hole, the limited block is arranged on inside through hole and extended downward into inside mounting hole；On the front shroud
A set screw hole parallel with pump shaft axis is additionally provided with, the set screw hole runs through limited block, and the holding screw leads to
Cross set screw hole limited block is fixed on front shroud.
Preferably, the limited block and through hole are interference fit.
Preferably, the front end of the limited block is provided with multiple tips, for preventing impeller axial float.
Preferably, the axis of the through hole is mutually perpendicular to pump shaft axis.
The invention provides a kind of double-suction pump impeller axial positioning structure, has simple in construction, convenient disassembly, operation flat
Surely, the advantages that safe and reliable, the axial float of impeller can effectively be prevented..
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment：
As shown in figure 1, a kind of double-suction pump impeller axial positioning structure, including pump shaft 1 and impeller 2, in addition to holding screw 3
With limited block 4, the pump shaft 1 is provided with a mounting hole 5, and the impeller 2 is enclosed on pump shaft 1, on the front shroud 6 of the impeller 2
The position corresponding with mounting hole 5 is provided with a through hole 7, and the axis of the through hole 7 is parallel with the axis of mounting hole 5, the limit
Position block 4 is arranged on the inside of through hole 7 and extended downward into inside mounting hole 5；One and the axis of pump shaft 1 are additionally provided with the front shroud 6
Parallel set screw hole 8, the set screw hole 8 run through limited block 4, and the holding screw 3 will by set screw hole 8
Limited block 4 is fixed on front shroud 6.
Preferably, the limited block 4 and through hole 7 are interference fit.
Preferably, the front end of the limited block 4 is provided with multiple sophisticated 9, for preventing the axial float of impeller 2.
Preferably, the axis of the through hole 7 is mutually perpendicular to the axis of pump shaft 1.
The invention provides a kind of double-suction pump impeller axial positioning structure, has simple in construction, convenient disassembly, operation flat
Surely, the advantages that safe and reliable, limited block and front shroud is combined by holding screw and are fixed into an entirety, the front end of limited block
It is stuck on mounting hole, can effectively prevents the axial float of impeller.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a kind of double-suction pump impeller axial positioning structure, including pump shaft (1) and impeller (2), it is characterised in that also including clamp screw
Nail (3) and limited block (4), the pump shaft (1) are provided with a mounting hole (5), and the impeller (2) is enclosed on pump shaft (1), the leaf
Take turns position corresponding with mounting hole (5) on the front shroud (6) of (2) and be provided with a through hole (7), the axis and peace of the through hole (7)
It is parallel to fill the axis of hole (5), the limited block (4) is arranged on through hole (7) inside and extends downward into mounting hole (5) inside；
A set screw hole (8) parallel with pump shaft (1) axis is additionally provided with the front shroud (6), the set screw hole (8) is passed through
Limited block (4) is worn, limited block (4) is fixed on front shroud (6) by the holding screw (3) by set screw hole (8).
2. double-suction pump impeller axial positioning structure as claimed in claim 1, it is characterised in that the limited block (4) and through hole
(7) it is interference fit.
3. double-suction pump impeller axial positioning structure as claimed in claim 1, it is characterised in that before the limited block (4)
End is provided with multiple sophisticated (9), for preventing impeller (2) axial float.
4. double-suction pump impeller axial positioning structure as claimed in claim 1, it is characterised in that the axis of the through hole (7) with
Pump shaft (1) axis is mutually perpendicular to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426599.9A CN107339253A (en) | 2017-06-08 | 2017-06-08 | A kind of double-suction pump impeller axial positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426599.9A CN107339253A (en) | 2017-06-08 | 2017-06-08 | A kind of double-suction pump impeller axial positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107339253A true CN107339253A (en) | 2017-11-10 |
Family
ID=60220585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710426599.9A Pending CN107339253A (en) | 2017-06-08 | 2017-06-08 | A kind of double-suction pump impeller axial positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107339253A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586456A (en) * | 2021-07-26 | 2021-11-02 | 安徽埃斯克制泵有限公司 | High-efficiency wear-resistant double-suction pump impeller |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2549681A1 (en) * | 1974-11-09 | 1976-05-13 | Os Bad Rozwojowy Przem Budowy | Axially fixing parts on shaft - suitable for multi-stage centrifugal pumps with large shaft diameters |
| US20050214125A1 (en) * | 2004-03-24 | 2005-09-29 | Elliott Company | Impeller lock assembly and method |
| CN105317735A (en) * | 2014-07-30 | 2016-02-10 | 上海连成（集团）有限公司 | Positioning structure of impeller of cantilever pump |
| CN205277904U (en) * | 2016-01-14 | 2016-06-01 | 浙江佳力科技股份有限公司 | Petroleum pump rotor anti loosening structure |
| CN205937212U (en) * | 2016-08-29 | 2017-02-08 | 山东韬浦泵业有限公司 | Double entry pump impeller axial positioning structure |
-
2017
- 2017-06-08 CN CN201710426599.9A patent/CN107339253A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2549681A1 (en) * | 1974-11-09 | 1976-05-13 | Os Bad Rozwojowy Przem Budowy | Axially fixing parts on shaft - suitable for multi-stage centrifugal pumps with large shaft diameters |
| US20050214125A1 (en) * | 2004-03-24 | 2005-09-29 | Elliott Company | Impeller lock assembly and method |
| CN105317735A (en) * | 2014-07-30 | 2016-02-10 | 上海连成（集团）有限公司 | Positioning structure of impeller of cantilever pump |
| CN205277904U (en) * | 2016-01-14 | 2016-06-01 | 浙江佳力科技股份有限公司 | Petroleum pump rotor anti loosening structure |
| CN205937212U (en) * | 2016-08-29 | 2017-02-08 | 山东韬浦泵业有限公司 | Double entry pump impeller axial positioning structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586456A (en) * | 2021-07-26 | 2021-11-02 | 安徽埃斯克制泵有限公司 | High-efficiency wear-resistant double-suction pump impeller |
| CN113586456B (en) * | 2021-07-26 | 2024-04-02 | 安徽埃斯克制泵有限公司 | Efficient wear-resistant double-suction pump impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171110 |