CN205937212U - Double entry pump impeller axial positioning structure - Google Patents
Double entry pump impeller axial positioning structure Download PDFInfo
- Publication number
- CN205937212U CN205937212U CN201620964004.6U CN201620964004U CN205937212U CN 205937212 U CN205937212 U CN 205937212U CN 201620964004 U CN201620964004 U CN 201620964004U CN 205937212 U CN205937212 U CN 205937212U
- Authority
- CN
- China
- Prior art keywords
- impeller
- axial
- axial restraint
- pump shaft
- screw
- 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 discloses a double entry pump impeller axial positioning structure, it includes pump shaft and impeller, characterized in that is equipped with axial fixity and overlaps and holding screw, axial fixity cover hole comprises the screw hole section and the section of perforating, radially be equipped with the holding screw hole on the section of the perforating lateral wall, be equipped with the screw thread section on the pump shaft of impeller inlet end, the screw thread section threaded connection of axial fixity cover and pump shaft makes the axial fixity cover inner inconsistent with impeller hub, prevent the impeller shaft to the drunkenness, behind the radial screw hole threaded connection that holding screw and axial fixity sheathe in, fix the axial fixity cover on the pump shaft, by adopting the above structure, the utility model, have simple structure, easy dismounting, operate steadily, advantage such as safe and reliable.
Description
Technical field
The invention belongs to engineering machinery field, specifically a kind of axial positioning structure of double-suction pump impeller.
Background technology
Because the exploitation of petroleum chemical industry, production, processing are with certain danger, so ensureing the same of its performance
When, the safe and reliable operation of device will necessarily become the following main development trend of petrochemical process pump.
Point semi-loop of in the past traditional double-suction pump impeller axial restraint, very strict to its requirement on machining accuracy, no
Then will be easy to cause the axial float of impeller, thus affecting the performance of pump and the safe and reliable of operation.
Content of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, provides that a kind of structure is simple, easy accessibility, fortune
Steady, the safe and reliable double-suction pump impeller axial positioning structure of row.
This utility model solves its technical problem and be employed technical scheme comprise that：
A kind of double-suction pump impeller axial positioning structure, including pump shaft and impeller it is characterised in that be provided with axial restraint set and
Holding screw, described axial restraint set endoporus is made up of screw thread hole section and perforated section, and described perforated section side wall is radially provided with
Set screw hole, the pump shaft at described impeller inlet end is provided with thread segment, and axial restraint set is threadeded with the thread segment of pump shaft,
So that axial restraint is covered inner inconsistent with impeller hub, prevent impeller axial float, described holding screw and axial restraint put
Radial screw bore threaded after, axial restraint set is fixed on pump shaft, with reach prevent axial restraint set rotation loosen.
This utility model can be provided with locking groove in described axial restraint set outer end circumference array, with reach convenient locking and
The effect of dismounting.
Axial restraint described in the utility model covers what outer circumference diameter was contacted with axial restraint set less than or equal to impeller hub
Outer circumference diameter so that medium more smooth be transitioned into impeller inlet, reduce impact, improve the efficiency of pump.
This utility model due to adopting said structure, have that structure is simple, easy accessibility, operate steadily, safe and reliable etc.
Advantage.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of axial fixed cover in the present invention.
Fig. 3 is the left view of Fig. 2.
Reference：Pump shaft 1, impeller 2, axial restraint set 3, holding screw 4.
Specific embodiment
The present invention will be described below in conjunction with the accompanying drawings.
As shown in drawings, a kind of double-suction pump impeller axial positioning structure, including pump shaft 1 and impeller 2 it is characterised in that being provided with
Axial restraint set 3 and holding screw 4, described axial restraint covers 3 endoporus and is made up of screw thread hole section and perforated section, described perforated section
Set screw hole is radially provided with the wall of side, the pump shaft 1 of described impeller 2 entrance point is provided with thread segment, axial restraint set 3 and pump shaft
1 thread segment is threaded, makes axial restraint set 3 inner inconsistent with impeller 2 wheel hub, prevents impeller 2 axial float, described tight
Determine after the radial screw bore on screw 4 and axial restraint set 3 threadeds, axial restraint set 3 to be fixed on pump shaft 1, to reach
Loosen to preventing axial restraint set rotation.
This utility model can cover 3 outer end circumference array in described axial restraint and be provided with locking groove, to reach convenient locking
Effect with dismounting.
Axial restraint described in the utility model is covered 3 outer circumference diameter and is contacted with axial restraint set less than or equal to impeller 2 wheel hub
Outer circumference diameter so that medium more smooth be transitioned into impeller inlet, reduce impact, improve the efficiency of pump.
This utility model when mounted, first double-entry impeller 2 is arranged on pump shaft, and axial restraint set 3 is enclosed within pump shaft,
Threadeded with the thread segment on pump shaft 1 by the screw thread hole section that axial restraint covers 3 endoporus, make double-entry impeller 2 one end and pump shaft 1
The shaft shoulder is inconsistent, and the other end is inconsistent with axial restraint set 3, then by tool kit in locking groove, makes axial restraint cover 3 and enter
After one step locking double-entry impeller 2, holding screw 4 is screwed into the set screw hole on axial restraint set 3, makes holding screw 4 by axle
It is fixed on pump shaft 1 to fixed cover 3.
This utility model due to adopting said structure, have that structure is simple, easy accessibility, operate steadily, safe and reliable etc.
Advantage.
Claims (3)
1. a kind of double-suction pump impeller axial positioning structure, covers and tight it is characterised in that being provided with axial restraint including pump shaft and impeller
Determine screw, described axial restraint set endoporus is made up of screw thread hole section and perforated section, described perforated section side wall is radially provided with tight
Determine screw hole, the pump shaft at described impeller inlet end is provided with thread segment, and axial restraint set is threadeded with the thread segment of pump shaft, makes
Axial restraint set is inner inconsistent with impeller hub, prevents impeller axial float, described holding screw and axial restraint put
After radial screw bore is threaded, axial restraint set is fixed on pump shaft.
2. a kind of double-suction pump impeller axial positioning structure according to claim 1 is it is characterised in that described axial restraint set
Outer end circumference array is provided with locking groove.
3. a kind of double-suction pump impeller axial positioning structure according to claim 1 is it is characterised in that described axial restraint set
The outer circumference diameter that outer circumference diameter is contacted with axial restraint set less than or equal to impeller hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620964004.6U CN205937212U (en) | 2016-08-29 | 2016-08-29 | Double entry pump impeller axial positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620964004.6U CN205937212U (en) | 2016-08-29 | 2016-08-29 | Double entry pump impeller axial positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937212U true CN205937212U (en) | 2017-02-08 |
Family
ID=57953477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620964004.6U Expired - Fee Related CN205937212U (en) | 2016-08-29 | 2016-08-29 | Double entry pump impeller axial positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205937212U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339253A (en) * | 2017-06-08 | 2017-11-10 | 三联泵业股份有限公司 | A kind of double-suction pump impeller axial positioning structure |
| CN108980097A (en) * | 2018-09-20 | 2018-12-11 | 合肥恒大江海泵业股份有限公司 | A kind of dynamic device of sewage pump impeller anti-loose |
| CN110307164A (en) * | 2019-07-25 | 2019-10-08 | 中国船舶重工集团公司第七0四研究所 | Condensate pump flow passage components structure with inducer |
-
2016
- 2016-08-29 CN CN201620964004.6U patent/CN205937212U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339253A (en) * | 2017-06-08 | 2017-11-10 | 三联泵业股份有限公司 | A kind of double-suction pump impeller axial positioning structure |
| CN108980097A (en) * | 2018-09-20 | 2018-12-11 | 合肥恒大江海泵业股份有限公司 | A kind of dynamic device of sewage pump impeller anti-loose |
| CN110307164A (en) * | 2019-07-25 | 2019-10-08 | 中国船舶重工集团公司第七0四研究所 | Condensate pump flow passage components structure with inducer |
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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: 20170208 Termination date: 20190829 |