CN201496317U - Connecting structure of pump shaft and impeller on stainless steel pump - Google Patents
Connecting structure of pump shaft and impeller on stainless steel pump Download PDFInfo
- Publication number
- CN201496317U CN201496317U CN2009201884983U CN200920188498U CN201496317U CN 201496317 U CN201496317 U CN 201496317U CN 2009201884983 U CN2009201884983 U CN 2009201884983U CN 200920188498 U CN200920188498 U CN 200920188498U CN 201496317 U CN201496317 U CN 201496317U
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- CN
- China
- Prior art keywords
- pump shaft
- impeller
- screw
- jack
- pump
- 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 - Lifetime
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Abstract
The utility model discloses a connecting structure of a pump shaft and an impeller on a stainless steel pump. The connecting structure comprises a pump shaft and an impeller arranged at the lower end of the pump shaft, wherein a tapered shaft is arranged at the lower end of the pump shaft; a tapered inserting hole is formed on a hub of the impeller; the tapered shaft at the lower end of the pump shaft is closely inserted into the tapered inserting hole; a screw hole is formed on the lower end surface of the pump shaft; a screw is connected in the screw hole in a matched manner and screwed in the screw hole from the bottom up, and the pump shaft is closly connected together with the impeller through the screw; and the tapered shaft and the screw hole are only required to be processed on the pump shaft, and the tapered hole is processed on the impeller, therefore, the pump shaft and the impeller can be locked through the screw. The connecting structure has the advantages of convenient processing and low production and manufacturing cost.
Description
Technical field
The utility model relates to the linkage structure of pump shaft and impeller on a kind of stainless steel pump.
Background technique
In the prior art, adopt key to be connected on the stainless steel pump between pump shaft and the impeller, on pump shaft, process keyway, have jack on the wheel hub of impeller, also process keyway on the hole wall of jack, key is embedded in the keyway of pump shaft, again the keyway on the jack hole wall is aimed at the key on the pump shaft, be set on the pump shaft, this has just constituted the key connection, comes transmitting movement and power by key between pump shaft and the impeller.Adopt key to connect and must process keyway on the hole wall of pump shaft and impeller jack, the cost of production when then causing pump shaft to be connected with impeller is higher, and manufacturing efficiency is relative also lower.
Summary of the invention
The purpose of this utility model provides a kind of screw that adopts and is connected the linkage structure of pump shaft and impeller with cone match on stainless steel pump.
For achieving the above object, the technical solution adopted in the utility model is: the linkage structure of pump shaft and impeller on a kind of stainless steel pump, comprise pump shaft, be installed in the impeller of described pump shaft underpart, has jack on the wheel hub of described impeller, the underpart of described pump shaft closely is inserted in the described jack, it is characterized in that: the underpart of described pump shaft is tapered, the wall surface of the hole of jack is also tapered on the described wheel hub, and be complementary with the end of described pump shaft, offer screw hole on the lower end surface of described pump shaft, be connected with screw in the described screw hole, described screw screws in the described screw hole from bottom to top, on described pump shaft, the conical surface in the conical surface of described pump shaft underpart and the described jack compresses described impeller hub mutually by described screw lock, and the jack aperture on the described wheel hub is up big and down small.
Described jack is for connecting the through hole of described impeller hub, the underpart of described pump shaft is inserted the top of described jack from top to bottom, described screw inserts the bottom of described jack from bottom to top, and the head of described screw is pressed on by packing ring on the lower surface of described wheel hub, and the afterbody of described screw screws in the described screw hole.
Because the utility model has adopted above technological scheme, its advantage is as follows: owing to only need process diminished shaft and screw hole on the pump shaft and process cone shape hole on impeller, just can connect by awl and lock pump shaft and impeller with screw.Easy to process like this, manufacturing cost is low.
Description of drawings
Accompanying drawing 1 is the sectional view of stainless steel pump;
Accompanying drawing 2 is the enlarged view at A place in the accompanying drawing 1, shown the linkage structure of pump shaft and impeller in the utility model.
Embodiment
Further set forth the utility model below in conjunction with accompanying drawing.
Shown in accompanying drawing 1, a kind of stainless steel pump, comprise the pump housing 1, pump shaft 2 and impeller 3, pump shaft 2 is installed in the pump housing 1 by metal (upper seat 4 and metal (upper 5, impeller 3 is equipped with in the underpart of pump shaft 2, has conical socket 6 on the wheel hub 31 of impeller 3, the underpart of pump shaft 2 is also tapered, and closely be inserted in the jack 6, offer screw hole 7 on the lower end surface of pump shaft, be connected with screw 8 in the screw hole 7, described screw 8 screws in the described screw hole 7 from bottom to top, by screw 8 fixedly connected wheel hubs 31 and pump shaft 2, the tapered slope of pump shaft 2 ends compresses mutually with jack 6 inner hole wall inclined-planes, realizes fixedlying connected of pump shaft 2 and impeller 3 by screw 8, owing to only need to process diminished shaft and screw hole on pump shaft 2, with on impeller 3, process cone shape hole, can realize by screw 8 locking pump shaft 2 and impellers 3, then easy to process, corresponding, cost of production was low when pump shaft 2 was connected with impeller 3, and manufacturing efficiency is improved.
Impeller 3 is core components of stainless steel pump, be used for sucking and extruding liquid, impeller 3 is installed in the end of pump shaft 2, and pump shaft 2 is connected on the rotor 10 of motor, as shown in Figure 1, give impeller 3 by pump shaft 2 with the transmission of torque of rotor, impeller 3 is done quick rotation, and by the interaction of impeller blade and liquid, impeller 3 passes to liquid with mechanical energy, change into the kinetic energy and the pressure energy of liquid, thereby realize that liquid is inhaled into discharge again in the pump housing 1.
In Fig. 2, the end of pump shaft 2 is tapered, and is corresponding, and the wall surface of the hole of jack 6 is also tapered on the wheel hub 31, and is complementary with the end of pump shaft 2, and the jack aperture on the wheel hub 31 is up big and down small, and the tapered slope of pump shaft 2 ends compresses mutually with jack 6 inner hole wall inclined-planes.Jack 6 on the end of pump shaft 2, the wheel hub 31 all designs tapered, making impeller 3 conveniently be installed on the pump shaft 2 or from pump shaft 2 so on the one hand disassembles, on the other hand, by tapered slope locking pump shaft 2 and impeller 3, with respect to cylindroid, the coupling mechanism force of conical surface is bigger, and the torsion that passes to impeller 3 by pump shaft 2 also can be bigger.
Conical socket 6 on the impeller hub 31 is designed to connect the through hole of impeller hub 31, referring to shown in Figure 2, this mainly is the consideration that is convenient for measuring the taper hole size man-hour for adding, in the present embodiment, the underpart of pump shaft 2 is inserted the top of the jack 6 of wheel hub 31 from top to bottom, screw 8 inserts the bottom of jack 6 from bottom to top, and the head of screw 8 is pressed on by packing ring 9 on the lower surface of wheel hub 31, and the afterbody of screw 8 screws in the screw hole 7.
Claims (2)
1. the linkage structure of pump shaft and impeller on the stainless steel pump, comprise pump shaft, be installed in the impeller of described pump shaft underpart, has jack on the wheel hub of described impeller, the underpart of described pump shaft closely is inserted in the described jack, it is characterized in that: the underpart of described pump shaft is tapered, the wall surface of the hole of jack is also tapered on the described wheel hub, and be complementary with the end of described pump shaft, offer screw hole on the lower end surface of described pump shaft, be connected with screw in the described screw hole, described screw screws in the described screw hole from bottom to top, described impeller hub by described screw lock on described pump shaft, conical surface in the conical surface of described pump shaft underpart and the described jack compresses mutually, and the jack aperture on the described wheel hub is up big and down small.
2. the linkage structure of pump shaft and impeller on the stainless steel pump according to claim 1, it is characterized in that: described jack is for connecting the through hole of described impeller hub, the underpart of described pump shaft is inserted the top of described jack from top to bottom, described screw inserts the bottom of described jack from bottom to top, and the head of described screw is pressed on by packing ring on the lower surface of described wheel hub, and the afterbody of described screw screws in the described screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201884983U CN201496317U (en) | 2009-07-31 | 2009-07-31 | Connecting structure of pump shaft and impeller on stainless steel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201884983U CN201496317U (en) | 2009-07-31 | 2009-07-31 | Connecting structure of pump shaft and impeller on stainless steel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496317U true CN201496317U (en) | 2010-06-02 |
Family
ID=42439525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201884983U Expired - Lifetime CN201496317U (en) | 2009-07-31 | 2009-07-31 | Connecting structure of pump shaft and impeller on stainless steel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201496317U (en) |
Cited By (3)
| 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 |
| CN107023506A (en) * | 2017-05-10 | 2017-08-08 | 巢湖市聚源机械有限公司 | A kind of water pump for being convenient for changing blade |
| CN107466340A (en) * | 2015-03-30 | 2017-12-12 | 利莱森玛电机公司 | Attachment structure between motor shaft and reduction gearing |
-
2009
- 2009-07-31 CN CN2009201884983U patent/CN201496317U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107466340A (en) * | 2015-03-30 | 2017-12-12 | 利莱森玛电机公司 | Attachment structure between motor shaft and reduction gearing |
| 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 |
| CN107023506A (en) * | 2017-05-10 | 2017-08-08 | 巢湖市聚源机械有限公司 | A kind of water pump for being convenient for changing blade |
| CN107023506B (en) * | 2017-05-10 | 2019-08-23 | 巢湖市聚源机械有限公司 | A kind of water pump being convenient for changing blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100602 |
|
| CX01 | Expiry of patent term |