CN205663649U - Locking device of chemical pump impeller - Google Patents
Locking device of chemical pump impeller Download PDFInfo
- Publication number
- CN205663649U CN205663649U CN201620505541.4U CN201620505541U CN205663649U CN 205663649 U CN205663649 U CN 205663649U CN 201620505541 U CN201620505541 U CN 201620505541U CN 205663649 U CN205663649 U CN 205663649U
- Authority
- CN
- China
- Prior art keywords
- impeller
- locking nut
- pump
- locking
- pump shaft
- 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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Abstract
The utility model provides a locking device of chemical pump impeller, include the pump shaft and cup joint at the epaxial impeller of pump, the axle end screw thread connection of lock nut and pump shaft compresses tightly the impeller, the axle end screw thread connection of secondary lock nut and pump shaft compresses tightly lock nut, the one end that lock nut compressed tightly the impeller sets up the shirt rim, there are 7 nut positioning pinholes along circumference evenly distributed, an evenly distributed 9 impeller location pinhole on the circumference that rotor disk end corresponds, one of lock nut location pinhole is aimed at with one of impeller location pinhole, and it is fixed with the impeller with lock nut through the locating pin. The utility model discloses a locking device of chemical pump impeller, simple structure not only, it is convenient to dismantle, lock effectually, and no matter the chemical pump is through what kind of frequent start -up, perhaps turns back kinetic energy when great according to the impeller of operating mode needs chemical pump, and lock nut all can not follow the pump shaft and drop, has prolonged the life of chemical pump.
Description
Technical field
This utility model relates to a kind of chemical pump, is specifically related to a kind of impeller of chemical centrifugal pump locking device, belongs to chemical industry equipment
Technical field.
Background technology
The impeller of existing chemical pump uses locking nut to lock.And chemical pump is in use, the moment of startup,
Locking nut can produce, due to the reason of inertia, the trend loosened；After motor stalling, due to medium back flow, impeller can be caused to fall
Turn, also have and make locking nut produce the trend loosened；And, under some working condition, when needing counter-flushing pipeline, impeller is anti-
Turn and locking nut can be made equally to loosen；After locking nut loosens, easily cause moving axially of impeller, produce abrasion or hit
Hit, affect the service life of chemical pump.
In order to solve the problems referred to above, the Chinese utility model patent of Authorization Notice No. CN 20223329 U, disclose one
Impeller of chemical centrifugal pump locking device, including impeller axle, impeller, static locking nut and dynamic locking jack panel, impeller passes through shaft hole sleeve
Being contained on impeller axle, static locking nut is arranged between impeller and dynamic locking jack panel, and rotation direction is identical with impeller direction of rotation,
Dynamic locking jack panel is sleeved on impeller shaft end head, and rotation direction is contrary with impeller direction of rotation, by oppositely oriented static locking
Nut and dynamic locking jack panel realize the locking to impeller, it is possible to the pine of locking nut when preventing pump startup and during impeller reversion
Dynamic.But, this scheme has following defect: when chemical pump frequent starting, or needs the impeller of chemical pump anti-according to operating mode
When rotational is bigger, the coupling mechanism force that static locking nut is formed with dynamic locking jack panel can be broken, cause locking nut to loosen.
Utility model content
Easily loosen to solve the locking nut of prior art impeller of chemical centrifugal pump locking device, cause damage in impeller or touch
Hitting, affect the technical problem in the service life of chemical pump, this utility model provides a kind of simple in construction, convenient disassembly, locking effect
The best impeller of chemical centrifugal pump locking device.
This utility model, for realizing above-mentioned technical purpose, adopts the following technical scheme that.
Impeller of chemical centrifugal pump locking device of the present utility model, including pump shaft and the impeller being socketed on pump shaft, impeller is radially
Fixed with pump shaft by bonded, fix with pump shaft axially through locking nut and secondary locking nut.Locking nut and pump shaft
Axle head threaded and compress impeller, secondary locking nut is threadeded with the axle head of pump shaft and compresses locking nut.Locking
Nut compresses one end of impeller and arranges shirt rim, and shirt rim is evenly distributed with 7 locking nut dowel holes, impeller end face vertically
Be uniformly distributed 9 impeller dowel holes on the circumference corresponding with locking nut dowel hole, one of locking nut dowel hole with
One of impeller dowel hole is directed at, and is fixed with impeller by locking nut by alignment pin.
Further, impeller of chemical centrifugal pump locking device of the present utility model, secondary locking nut is Hooded nut.
Further, impeller of chemical centrifugal pump locking device of the present utility model, sealing ring is set between locking nut and impeller.
Further, impeller of chemical centrifugal pump locking device of the present utility model, set between locking nut and secondary locking nut
It is equipped with sealing ring.
This utility model employing technique scheme following technique effect of acquirement:
1, impeller of chemical centrifugal pump locking device of the present utility model, is provided with shirt rim and locking nut location on locking nut
Pin-and-hole, impeller correspondence position is provided with impeller dowel hole, locking nut and impeller is locked by alignment pin, it is achieved that locking
Axially and radially fixing of nut and impeller and pump shaft, no matter chemical pump is through what kind of frequent starting, or according to operating mode need
When wanting the impeller reversion kinetic energy of chemical pump bigger, locking nut all will not come off from pump shaft, it is achieved thereby that impeller and pump shaft
Good fastening effect, extend the service life of chemical pump.
2, the quantity of the locking nut dowel hole on locking nut of the present utility model is 7, impeller dowel hole
Quantity is 9, when assembling, after being screwed impeller compression by clamping screw, it is only necessary to rotate the least by locking nut
Angle, so that it may so that one of them locking nut dowel hole and impeller dowel hole alignment, do not affect the axle of impeller
To locking effect, after locking nut and impeller being fixed with alignment pin, achieve again the fixing of radial direction.Do not increase unnecessary locking
Part, can realize good locking effect, simple in construction, and convenient disassembly, it is simple to maintenance is changed, time saving and energy saving.
3, impeller of chemical centrifugal pump locking device of the present utility model, secondary locking nut can lock further realize impeller and
The secondary locking of wheel shaft, dramatically increases the fixed effect of impeller, reduce further the replacing of impeller and the maintenance cost of pump.
4, impeller of chemical centrifugal pump locking device of the present utility model, between locking nut and impeller, locking nut and secondary lock
Sealing ring is set between jack panel, it is possible to avoids serosity entrance impeller and pump shaft to cause the abrasion of impeller and pump shaft, carries further
The service life of high chemical pump.
Accompanying drawing explanation
Fig. 1 is the structural representation of impeller of chemical centrifugal pump locking device of the present utility model；
Fig. 2 is the structural representation of the locking nut of impeller of chemical centrifugal pump locking device of the present utility model；
Fig. 3 is the cross-sectional view of the locking nut of impeller of chemical centrifugal pump locking device of the present utility model；
Reference lists as follows: pump shaft 1, sealing ring 2, impeller 3, alignment pin 4, locking nut 5, shirt rim 51, locking screw
Female dowel hole 52, secondary locking nut 6.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the technical scheme of impeller of chemical centrifugal pump locking device of the present utility model is further retouched
State, make those skilled in the art can be better understood from this utility model and can be practiced.
Seeing Fig. 1, Fig. 2 and Fig. 3, impeller of chemical centrifugal pump locking device of the present utility model, including pump shaft 1 be socketed in pump shaft
Impeller 3 on 1.Pump shaft 1 be provided with blind hole keyway radially outside, survey in the axis hole of impeller 3 and be disposed radially keyway, leaf
Wheel 3 and pump shaft 1 by bonded realize radially fixed.Female and the pump axially through locking nut 5 and secondary locking spiral shell 6 of impeller 3
Axle 1 is fixed, and locking nut 5 is threadeded with the axle head of pump shaft 1 and compresses impeller 3, secondary locking nut 6 and the axle head of pump shaft 1
Threaded and compress locking nut 5.Locking nut 5 compresses one end of impeller 3 and arranges shirt rim 51, the most uniform on shirt rim 51
7 locking nut dowel holes 52 are distributed, the circumference that impeller 3 end face is corresponding with the shirt rim 51 of locking nut 5 is uniformly distributed 9
Individual impeller dowel hole, one of locking nut dowel hole 52 is directed at one of impeller dowel hole, and will lock by alignment pin 4
Jack panel 5 is fixed with impeller 3.
During impeller of chemical centrifugal pump locking device of the present utility model assembling, connecting key is knocked in the keyway of pump shaft 1, impeller 3
Keyway alignment connecting key, and impeller 3 is socketed on pump shaft 1, one end is resisted against on the step of pump shaft 1, then by locking screw
Mother 5 screws with the axle head screw thread of pump shaft 1, after rotation, slightly adjusts locking nut 5 so that in locking nut dowel hole 52
One, it is directed at in impeller dowel hole, then will insert with alignment pin 4 again thus locking nut 5 and impeller 3 are locked
Tightly.Finally, secondary locking nut 6 is threaded by the axle head of pump shaft 1, compress locking nut 5.
Impeller of chemical centrifugal pump locking device of the present utility model, is provided with shirt rim 51 on locking nut 5 and locking nut is fixed
Position pin-and-hole 52, impeller 3 correspondence position is provided with impeller dowel hole, locking nut 5 and impeller 3 is locked by alignment pin 4, real
Show the radially fixed of locking nut 5 and impeller 3, it is achieved that locking nut 5 and impeller 3 and pump shaft 1 radially fixed, no matter changed
Work pump through what kind of frequent starting, or according to operating mode need the impeller 3 of chemical pump invert kinetic energy bigger time, locking nut 5
All will not come off from pump shaft 1, it is achieved thereby that the good fastening effect of impeller 3 and pump shaft 1, extend the use of chemical pump
Life-span.
And, the quantity of the locking nut dowel hole 52 on locking nut 5 of the present utility model is 7, on impeller 3
The quantity of impeller dowel hole is 9, when assembling, after being screwed by clamping screw 5 and being compressed by impeller 3, it is only necessary to will
Locking nut 5 rotates the least angle, so that it may so that one of them locking nut dowel hole 52 with in impeller dowel hole
One alignment, does not affect the axial locking effect of impeller 3, after fixing with 4 locking nuts 5 of alignment pin and impeller 3, achieves again
Fixing of radial direction.Do not increase unnecessary locking member, can realize good locking effect, simple in construction, and convenient disassembly, just
Change in maintenance, time saving and energy saving.
As the preferred scheme of one, impeller of chemical centrifugal pump locking device of the present utility model, secondary locking nut 6 is band cap
Nut.Secondary locking nut 6 can impeller locking 3 and pump shaft 1 further, further enhancing locking effect.
As the preferred scheme of one, impeller of chemical centrifugal pump locking device of the present utility model, locking nut 5 and impeller 3, with
And between locking nut 5 and secondary locking nut 6, it being provided with sealing ring 2, it is to avoid serosity enters impeller 3 and pump shaft 1, causes impeller
3 and the abrasion of pump shaft 1, improve the service life of chemical pump further.
The impeller of chemical centrifugal pump locking device that this utility model provides, is not restricted to the described embodiments, and every utilizes this reality
By novel structure and mode, through the technical scheme that conversion and replacement are formed, all in protection domain of the present utility model.
Claims (4)
1. an impeller of chemical centrifugal pump locking device, including pump shaft (1) and the impeller (3) that is socketed on pump shaft (1), described impeller
(3) fix with pump shaft (1) radial through bonded, it is characterised in that: described impeller (3) axially through locking nut (5) and
Secondary locking nut (6) is fixed with pump shaft (1), and described locking nut (5) is threadeded with the axle head of pump shaft (1) and compresses impeller
(3), described secondary locking nut (6) threadeds with the axle head of pump shaft (1) and compresses locking nut (5), described locking nut
(5) one end compressing impeller (3) arranges shirt rim (51), and described shirt rim (51) are uniformly distributed circumferentially 7 locking nut location
Pin-and-hole (52), the circumference that described impeller (3) end face is corresponding with locking nut dowel hole (52) is uniformly distributed 9 impeller location
Pin-and-hole, one of described locking nut dowel hole (52) is directed at one of impeller dowel hole, and will locking by alignment pin (4)
Nut (5) is fixed with impeller (3).
Impeller of chemical centrifugal pump locking device the most according to claim 1, it is characterised in that: described secondary locking nut (6) is
Hooded nut.
Impeller of chemical centrifugal pump locking device the most according to claim 1, it is characterised in that: described locking nut (5) and impeller
(3) sealing ring (2) is set between.
Impeller of chemical centrifugal pump locking device the most according to claim 1, it is characterised in that: described locking nut (5) and secondary
Sealing ring (2) is set between locking nut (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620505541.4U CN205663649U (en) | 2016-05-29 | 2016-05-29 | Locking device of chemical pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620505541.4U CN205663649U (en) | 2016-05-29 | 2016-05-29 | Locking device of chemical pump impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205663649U true CN205663649U (en) | 2016-10-26 |
Family
ID=57161195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620505541.4U Expired - Fee Related CN205663649U (en) | 2016-05-29 | 2016-05-29 | Locking device of chemical pump impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205663649U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107355419A (en) * | 2017-06-27 | 2017-11-17 | 北京航空航天大学 | A kind of high-speed magnetic levitation draught fan impeller locking mechanism |
| CN107477021A (en) * | 2017-09-25 | 2017-12-15 | 珠海格力电器股份有限公司 | Impeller transmission structure and centrifugal compressor |
| CN110529324A (en) * | 2019-09-05 | 2019-12-03 | 江西理工大学 | The vertical self-contained machine of tilt-impulse type twin-jet nozzle |
-
2016
- 2016-05-29 CN CN201620505541.4U patent/CN205663649U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107355419A (en) * | 2017-06-27 | 2017-11-17 | 北京航空航天大学 | A kind of high-speed magnetic levitation draught fan impeller locking mechanism |
| CN107477021A (en) * | 2017-09-25 | 2017-12-15 | 珠海格力电器股份有限公司 | Impeller transmission structure and centrifugal compressor |
| CN110529324A (en) * | 2019-09-05 | 2019-12-03 | 江西理工大学 | The vertical self-contained machine of tilt-impulse type twin-jet nozzle |
| CN110529324B (en) * | 2019-09-05 | 2020-10-02 | 江西理工大学 | Vertical oblique-impact double-nozzle integrated machine |
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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 |
Granted publication date: 20161026 Termination date: 20210529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |