CN204344514U - A kind of impeller locking mechanism - Google Patents
A kind of impeller locking mechanism Download PDFInfo
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- CN204344514U CN204344514U CN201420771855.XU CN201420771855U CN204344514U CN 204344514 U CN204344514 U CN 204344514U CN 201420771855 U CN201420771855 U CN 201420771855U CN 204344514 U CN204344514 U CN 204344514U
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- impeller
- hole
- helical pitch
- taper connection
- wheel hub
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Abstract
The utility model discloses a kind of impeller locking mechanism, comprise impeller and main shaft, described impeller comprises impeller wheel body and impeller helical pitch wheel hub, described impeller helical pitch wheel hub inside is provided with taper connection hole, described main shaft is provided with the taper connection body matched with taper connection hole, described taper connection body inside is provided with fastener hole, and the center of described impeller helical pitch wheel hub and impeller wheel body joint is provided with fixed hole, and described fixed hole and fastener hole inside are provided with link.This impeller locking mechanism, by arranging impeller helical pitch wheel hub, effectively increases the length of helical pitch, arranges taper connection hole in impeller helical pitch wheel hub inside simultaneously, main shaft arranges taper connection body, by cone match, easy to assembly, coaxality is good, and installation efficiency is high, and locking effect is good.
Description
Technical field
The utility model relates to centrifugal pump technical field, especially relates to a kind of impeller locking mechanism.
Background technique
Single stage centrifugal pump is one of most widely used pump kind, single stage centrifugal pump in current technology, impeller is locked on a main shaft, the connecting end of main shaft has the conical surface to end convergent, the wheel hub of impeller also has the conical surface matched with the connecting end of main shaft, be screwed in the center screw of main shaft end face with housing screw through hold-down ring central through bore, one or more backing-up screw is set again and is fixed and clamped ring to main shaft end face, so main shaft end face needs to have center screw and a locking screw at least, add processing and assembling difficulty, the structure little for main shaft face size is inapplicable, impeller hub is general shorter, therefore short with helical pitch during main shaft cone match, easy circular runout, fixing because arranging multiple screw, causing suction eye wheel hub large, adding the flow disturbance of suction eye, reduce efficiency,
Chinese patent literature (the day for announcing: on July 2nd, 2014, notification number: CN203685674U) disclose a kind of impeller locking mechanism of centrifugal slurry pump, comprise pump shaft, impeller, described impeller is through described pump shaft, and the lower surface of described impeller and the shaft shoulder of pump shaft are fitted, also comprise impeller nut, impeller bolt and key, by impeller nut, the dual reverse locking impeller of impeller bolt, and fix impeller by key, ensure pump impeller mechanism monolithic stability.
The utility model aims to provide a kind of use safety, the impeller locking mechanism of the reliable centrifugal slurry pump of structure.
Model utility content
The purpose of this utility model is poor in order to solve impeller locking mechanism technology capability in prior art, and assembling is inconvenient, and helical pitch is short, coaxality is poor, inefficient problem, and provides a kind of structure simple, easy to assembly, coaxality is good, the impeller locking mechanism that efficiency is high.
The utility model realizes the technological scheme that its technical purpose adopts: a kind of impeller locking mechanism, comprise impeller and main shaft, described impeller comprises impeller wheel body and impeller helical pitch wheel hub, described impeller helical pitch wheel hub inside is provided with taper connection hole, described main shaft is provided with the taper connection body matched with taper connection hole, described taper connection body inside is provided with fastener hole, the center of described impeller helical pitch wheel hub and impeller wheel body joint is provided with fixed hole, and described fixed hole and fastener hole inside are provided with link.This impeller locking mechanism, by carrying out appropriate design to blade wheel structure and main shaft structure, impeller arranges impeller helical pitch wheel hub, in impeller helical pitch wheel hub inside, taper connection hole is set, and taper connection body is set on main shaft, by the cone match in taper connection body and taper connection hole, and be arranged on fixed hole and the fastener hole of impeller helical pitch wheel hub and main shaft taper connection body inside, by link, main shaft and impeller are connected as one, in the fastener cycle of link, taper connection body coordinates more and more tighter until fasteningly to put in place with taper connection hole.This impeller locking mechanism, helical pitch is long, and structure is simple, and easy to assembly, coaxality is good, and installation efficiency is high, and locking effect is good.
As preferably, described impeller helical pitch wheel hub is extended to major axes orientation by impeller wheel body side, and the length of described impeller helical pitch wheel hub is greater than the length of the upper conical connecting body of main shaft.Impeller helical pitch wheel hub is extended by impeller wheel body side, structural and intensity is like this good, easy to make, in order to ensure locking effect, the length of impeller helical pitch wheel hub is greater than the length of main shaft taper connection body, and taper connection body can be made so effectively to coordinate with taper connection hole.
As preferably, described impeller wheel body has been coaxially set with the side of impeller helical pitch hub relative and fixed hole mounting groove.The setting that mounting groove is conveniently link is set, mounting groove is set simultaneously and can reduces the interference of wheel hub to inlet fluid medium.
As preferably, described fastener hole is tapped hole, and described link comprises lock screw and spring washer, and the end of described lock screw is provided with lid shape hexagon head, and described link and main shaft are oppositely arranged on mounting groove inside and are connected with fastener hole.Link is provided with the lock screw of end shape hexagon head with cover, and lid shape hexagon head can reduce the interference of wheel hub to inlet fluid medium, and spring washer can increase pretightening force.
As preferably, the conical surface that taper connection hole and taper connection body coordinate is No. 2, Morse's taper.No. 2, the preferred Morse's taper of the conical surface that taper connection hole and taper connection body coordinate, such structure directing performance is good, is convenient to dismounting, easy to operate.
As preferably, impeller helical pitch wheel hub is provided with waist shaped hole near impeller wheel body place, and described waist shaped hole is arranged perpendicular to the axis of main shaft, the degree of depth that the end face of described taper connection body extends to waist shaped hole be less than waist shaped hole hole wide 1/3rd.The object arranging waist shaped hole is conveniently to the debris removal in the dismounting of main shaft and course of working, can be taken apart from inside, taper connection hole by main shaft easily by waist shaped hole, easy to operate.
The beneficial effects of the utility model are: this impeller locking mechanism, by arranging impeller helical pitch wheel hub, effectively increase the length of helical pitch, taper connection hole is set in impeller helical pitch wheel hub inside simultaneously, main shaft arranges taper connection body, passes through cone match, easy to assembly, coaxality is good, and installation efficiency is high, and locking effect is good.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the utility model impeller locking mechanism;
In figure: 1, impeller, 2, main shaft, 3, impeller wheel body, 4, impeller helical pitch wheel hub, 5, taper connection hole, 6, taper connection body, 7, fastener hole, 8, fixed hole, 9, link, 10, mounting groove, 11, lock screw, 12, spring washer, 13, lid shape hexagon head, 14, waist shaped hole.
Embodiment
Also by reference to the accompanying drawings the technical solution of the utility model is described in further detail below by specific embodiment.
Embodiment 1:
In the embodiment shown in fig. 1, a kind of impeller locking mechanism, comprise impeller 1 and main shaft 2, impeller 1 comprises impeller wheel body 3 and impeller helical pitch wheel hub 4, impeller helical pitch wheel hub 4 is extended to main shaft 2 direction by impeller wheel body 3 side, and the length of impeller helical pitch wheel hub 4 is greater than the length of the upper conical connecting body 6 of main shaft.Side relative with impeller helical pitch wheel hub 4 on impeller wheel body 3 and fixed hole 8 have been coaxially set mounting groove 10.Impeller helical pitch wheel hub 4 inside is provided with taper connection hole 5, main shaft 2 is provided with the taper connection body 6 matched with taper connection hole 5, and the conical surface that taper connection hole 5 and taper connection body 6 coordinate is No. 2, Morse's taper.
Taper connection body 6 inside is provided with fastener hole 7, and fastener hole 7 is tapped hole, and impeller helical pitch wheel hub 4 is provided with fixed hole 8 with the center of impeller wheel body 3 joint, and fixed hole 8 and fastener hole 7 inside are provided with link 9.Link 9 comprises lock screw 11 and spring washer 12, and the end of lock screw 11 is provided with lid shape hexagon head 13, and link 9 and main shaft are oppositely arranged on mounting groove 10 inside and are connected with fastener hole 7.
Impeller helical pitch wheel hub 4 is provided with waist shaped hole 14 near impeller wheel body 3 place, and waist shaped hole 14 is arranged perpendicular to the axis of main shaft, the degree of depth that the end face of taper connection body 6 extends to waist shaped hole 14 be less than waist shaped hole hole wide 1/3rd.
This impeller locking mechanism, comprise impeller 1 and main shaft 2, impeller is made up of impeller wheel body and impeller helical pitch wheel hub again, impeller helical pitch wheel hub inside is provided with taper connection hole, main shaft is provided with taper connection body, taper connection body and the taper connection hole cone match by mutually coincideing, the conical surface is coordinated to adopt No. 2, Morse's taper, to improve steering capability, the end face of taper connection body is provided with screwed hole of centre, impeller wheel body is provided with fixed hole, the center passing impeller wheel body with the lock screw covering shape hexagon head by end is connected with the fastener hole of taper connection body inside, realize the tension locking function to main shaft and impeller.In order to dismantle and process anti-dandruff convenience, impeller helical pitch wheel hub is provided with waist shaped hole, center and the lock screw cooperation place of impeller wheel body are provided with mounting groove, to reduce the interference of wheel hub to inlet fluid medium, between lock screw and mounting groove, spring washer is set, to increase pretightening force, the lid shape hexagon head of lock screw can reduce the interference of wheel hub to inlet fluid medium.
This impeller locking mechanism, by arranging impeller helical pitch wheel hub, effectively increases the length of helical pitch, arranges taper connection hole in impeller helical pitch wheel hub inside simultaneously, main shaft arranges taper connection body, by cone match, easy to assembly, coaxality is good, and installation efficiency is high, and locking effect is good.
Claims (6)
1. an impeller locking mechanism, comprise impeller (1) and main shaft (2), it is characterized in that: described impeller (1) comprises impeller wheel body (3) and impeller helical pitch wheel hub (4), described impeller helical pitch wheel hub (4) inside is provided with taper connection hole (5), described main shaft (2) is provided with the taper connection body (6) matched with taper connection hole (5), described taper connection body (6) inside is provided with fastener hole (7), described impeller helical pitch wheel hub (4) is provided with fixed hole (8) with the center of impeller wheel body (3) joint, described fixed hole (8) and fastener hole (7) inside are provided with link (9).
2. a kind of impeller locking mechanism according to claim 1, it is characterized in that: described impeller helical pitch wheel hub (4) is extended to major axes orientation by impeller wheel body (3) side, the length of described impeller helical pitch wheel hub (4) is greater than the length of the upper conical connecting body of main shaft (6).
3. a kind of impeller locking mechanism according to claim 2, is characterized in that: the upper side relative with impeller helical pitch wheel hub (4) of described impeller wheel body (3) and fixed hole (8) have been coaxially set mounting groove (10).
4. a kind of impeller locking mechanism according to claim 3, it is characterized in that: described fastener hole (7) is tapped hole, described link (9) comprises lock screw (11) and spring washer (12), the end of described lock screw (11) is provided with lid shape hexagon head (13), and described link (9) and main shaft are oppositely arranged on mounting groove (10) inside and are connected with fastener hole (7).
5. a kind of impeller locking mechanism according to claim 1 or 2 or 3 or 4, is characterized in that: the conical surface that taper connection hole (5) and taper connection body (6) coordinate is No. 2, Morse's taper.
6. a kind of impeller locking mechanism according to claim 1 or 2 or 3 or 4, it is characterized in that: impeller helical pitch wheel hub (4) is upper is provided with waist shaped hole (14) near impeller wheel body (3) place, described waist shaped hole (14) is arranged perpendicular to the axis of main shaft, the degree of depth that the end face of described taper connection body (6) extends to waist shaped hole (14) be less than waist shaped hole hole wide 1/3rd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771855.XU CN204344514U (en) | 2014-12-10 | 2014-12-10 | A kind of impeller locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771855.XU CN204344514U (en) | 2014-12-10 | 2014-12-10 | A kind of impeller locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344514U true CN204344514U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420771855.XU Active CN204344514U (en) | 2014-12-10 | 2014-12-10 | A kind of impeller locking mechanism |
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| CN (1) | CN204344514U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963889A (en) * | 2015-07-01 | 2015-10-07 | 重庆美的通用制冷设备有限公司 | Impeller and driving shaft connecting structure |
| CN106246595A (en) * | 2016-10-13 | 2016-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Impeller inducer assembly and there is its aerator |
| CN107350051A (en) * | 2017-09-14 | 2017-11-17 | 南京卓迈机械有限公司 | A kind of driving impeller assembly in sander |
| CN109356883A (en) * | 2018-12-17 | 2019-02-19 | 珠海格力电器股份有限公司 | Impeller assembly and compressor provided with same |
| CN110566419A (en) * | 2019-09-26 | 2019-12-13 | 北京金风科创风电设备有限公司 | Blade locking device, hub, impeller and wind generating set |
| CN114151378A (en) * | 2021-11-18 | 2022-03-08 | 北京航天石化技术装备工程有限公司 | Shafting assembly structure |
-
2014
- 2014-12-10 CN CN201420771855.XU patent/CN204344514U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963889A (en) * | 2015-07-01 | 2015-10-07 | 重庆美的通用制冷设备有限公司 | Impeller and driving shaft connecting structure |
| CN106246595A (en) * | 2016-10-13 | 2016-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Impeller inducer assembly and there is its aerator |
| CN107350051A (en) * | 2017-09-14 | 2017-11-17 | 南京卓迈机械有限公司 | A kind of driving impeller assembly in sander |
| CN109356883A (en) * | 2018-12-17 | 2019-02-19 | 珠海格力电器股份有限公司 | Impeller assembly and compressor provided with same |
| WO2020125198A1 (en) * | 2018-12-17 | 2020-06-25 | 珠海格力电器股份有限公司 | Impeller component and compressor having same |
| CN110566419A (en) * | 2019-09-26 | 2019-12-13 | 北京金风科创风电设备有限公司 | Blade locking device, hub, impeller and wind generating set |
| CN114151378A (en) * | 2021-11-18 | 2022-03-08 | 北京航天石化技术装备工程有限公司 | Shafting assembly structure |
| CN114151378B (en) * | 2021-11-18 | 2023-12-12 | 北京航天石化技术装备工程有限公司 | Shafting assembly structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: No. 46 Hangzhou City, Zhejiang province 311100 Yuhang District Renhe Street Renhe Road Patentee after: Southern Gold environment Limited by Share Ltd Address before: Renhe Town of Yuhang District of Hangzhou City, Zhejiang province 311107 Patentee before: Nanfang Pump Industry Co.,Ltd. |