CN104251228A - Impeller positioning structure - Google Patents
Impeller positioning structure Download PDFInfo
- Publication number
- CN104251228A CN104251228A CN201310262314.4A CN201310262314A CN104251228A CN 104251228 A CN104251228 A CN 104251228A CN 201310262314 A CN201310262314 A CN 201310262314A CN 104251228 A CN104251228 A CN 104251228A
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- China
- Prior art keywords
- impeller
- shaft sleeve
- positioning
- positioning structure
- pump shaft
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to an impeller positioning structure. The impeller positioning structure comprises a pump shaft, a positioning shaft sleeve sleeving the pump shaft and an impeller sleeving the positioning shaft sleeve; the match surface of the impeller and the positioning shaft sleeve is of an inclined surface; the inclined surface is upwards inclined along the water inlet direction of the impeller. The impeller positioning structure has the advantages that the structure is simple, the processing steps are simplified, the machining time is saved, the assembly and maintenance are facilitated and the impeller is not easily damaged.
Description
Technical field
The present invention relates to impeller to install, specifically, a kind of blade wheel positioning structure.
Background technique
Refer to Fig. 1, shown in figure is a kind of common blade wheel positioning structure, is connected with a connecting key 5 between impeller 1 and pump shaft 6, and pump shaft 6 plays rotation with impeller with one by connecting key 5 transmitting torque.Owing to will offer a keyway placed for connecting key 5 on pump shaft 6, for ensuring enough intensity, when designing, the diameter of pump shaft 6 must be thicker than theoretical value, causes the waste of material.Again, the axial restraint of impeller 1 is firm by snap ring 4, gland 2, screw 3, so not only will on pump shaft 5 precision machining ground annular groove, and assemble loaded down with trivial details, strengthen workload, cause certain economic loss.If pump is in the process run, the unfortunate locking of impeller 1 is on axle, and in the process of maintenance, impeller endoporus is easily damaged, and must change impeller like this, also can cause unnecessary economic loss.
Summary of the invention
The present invention seeks to overcome the problem of processed complex in prior art, propose a kind of novel blade wheel positioning structure.
To achieve these goals, technological scheme of the present invention is achieved in that a kind of blade wheel positioning structure, it is characterized in that, comprises,
One pump shaft;
One positioning shaft sleeve, is sheathed on this pump shaft; And,
One impeller, is sheathed on this positioning shaft sleeve, and the fitting surface of this impeller and this positioning shaft sleeve is plane of inclination, and this plane of inclination is the water inlet direction updip along impeller.
As a kind of preferred version of blade wheel positioning structure, be interference fit between this pump shaft and this positioning shaft sleeve.
As a kind of preferred version of blade wheel positioning structure, be interference fit between this impeller and this positioning shaft sleeve.
As a kind of preferred version of blade wheel positioning structure, this axle sleeve is formed with a gap axially arranged along it.
Compared with prior art, at least there is following advantage in the present invention:
1, not be used on axle and process annular groove, save process time.
2, the thickness of axle need not consider the additional strength that splines, saves material.
3, amount of parts tails off, simply, economizes on the use of funds, easy to assembly.
4, easy to maintenance by pipe clamp and need be rushed cylinder, and impeller is not easily damaged.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art.
Fig. 2 is structural representation of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is elaborated.
Refer to Fig. 2, shown in figure is a kind of blade wheel positioning structure, forms primarily of pump shaft 11, positioning shaft sleeve 12 and an impeller 13.
This pump shaft 11, is connected with motor, for the power providing impeller 13 to rotate.Need the position that impeller is set, process a shaft part.
This positioning shaft sleeve 12, taper sheath, on the shaft part being sheathed on this pump shaft and interference fit.In order to increase the versatility of this positioning shaft sleeve 12 and fixing reliability, being processed with the wide gap of a 2-4mm thereon vertically, like this, in sheathed process, having and certain freely adjusting space.
This impeller 13, is made up of wheel hub and wheel blade, and the inner face of this wheel hub is processed into the fitting surface corresponding with this positioning shaft sleeve 12 conical surface, and is sheathed on this positioning shaft sleeve, interference fit.
The method of installing is as follows:
First, before installing impeller, driven dimension, fixes the mounting point of impeller 13 by pipe clamp.
Then, positioning shaft sleeve 12 is arranged on the position of the axle that pipe clamp is fixed.
Finally, use punching cylinder, be contained on tapered hub by impeller 13, like this, form interference fit between tapered hub and axle, between tapered hub and impeller endoporus, impeller is stabilized on axle.
When pump shaft 11 rotates, with positioning shaft sleeve 12 transmitting torque, impeller 13 is rotated together.Again, the conical surface due to positioning shaft sleeve 12 can provide the component of an axis, and the axial force produced when can offset wheel rotation realizes good axially locating.
Below only have expressed embodiments of the present invention, it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (4)
1. a blade wheel positioning structure, is characterized in that, comprises,
One pump shaft;
One positioning shaft sleeve, is sheathed on this pump shaft; And,
One impeller, is sheathed on this positioning shaft sleeve, and the fitting surface of this impeller and this positioning shaft sleeve is plane of inclination, and this plane of inclination is the water inlet direction updip along impeller.
2. a kind of blade wheel positioning structure according to claim 1, is characterized in that, is interference fit between this pump shaft and this positioning shaft sleeve.
3. a kind of blade wheel positioning structure according to claim 1, is characterized in that, is interference fit between this impeller and this positioning shaft sleeve.
4. a kind of blade wheel positioning structure according to claim 2, is characterized in that, this axle sleeve is formed with a gap axially arranged along it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310262314.4A CN104251228A (en) | 2013-06-27 | 2013-06-27 | Impeller positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310262314.4A CN104251228A (en) | 2013-06-27 | 2013-06-27 | Impeller positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104251228A true CN104251228A (en) | 2014-12-31 |
Family
ID=52186411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310262314.4A Pending CN104251228A (en) | 2013-06-27 | 2013-06-27 | Impeller positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104251228A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386994A (en) * | 2015-12-16 | 2016-03-09 | 中车大连机车研究所有限公司 | Centrifugal compressor impeller locking structure |
| CN105782112A (en) * | 2016-04-20 | 2016-07-20 | 天佑电器（苏州）有限公司 | Fan blade positioning structure and blowing and sucking machine using same |
| CN106593941A (en) * | 2016-11-29 | 2017-04-26 | 东方电气集团东方汽轮机有限公司 | Rotor pump wheel installation positioning structure |
| CN109139542A (en) * | 2018-10-17 | 2019-01-04 | 重庆欧尼斯特机电有限公司 | Can quickly positioning welding vane rotor |
| CN111322270A (en) * | 2020-03-03 | 2020-06-23 | 巨龙电机(宁德)有限公司 | Water pump impeller transmission shaft connecting structure |
| CN111503045A (en) * | 2020-04-29 | 2020-08-07 | 杭州碱泵有限公司 | Structure for improving rigidity of rotor |
-
2013
- 2013-06-27 CN CN201310262314.4A patent/CN104251228A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386994A (en) * | 2015-12-16 | 2016-03-09 | 中车大连机车研究所有限公司 | Centrifugal compressor impeller locking structure |
| CN105782112A (en) * | 2016-04-20 | 2016-07-20 | 天佑电器（苏州）有限公司 | Fan blade positioning structure and blowing and sucking machine using same |
| CN105782112B (en) * | 2016-04-20 | 2018-09-18 | 天佑电器（苏州）有限公司 | A kind of fan blade location structure and the blower using the structure |
| CN106593941A (en) * | 2016-11-29 | 2017-04-26 | 东方电气集团东方汽轮机有限公司 | Rotor pump wheel installation positioning structure |
| CN106593941B (en) * | 2016-11-29 | 2019-03-29 | 东方电气集团东方汽轮机有限公司 | A kind of rotor pump impeller installation and positioning structure |
| CN109139542A (en) * | 2018-10-17 | 2019-01-04 | 重庆欧尼斯特机电有限公司 | Can quickly positioning welding vane rotor |
| CN111322270A (en) * | 2020-03-03 | 2020-06-23 | 巨龙电机(宁德)有限公司 | Water pump impeller transmission shaft connecting structure |
| CN111503045A (en) * | 2020-04-29 | 2020-08-07 | 杭州碱泵有限公司 | Structure for improving rigidity of rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141231 |