CN208073856U - A kind of vertical long impeller of pump fixed structure - Google Patents
A kind of vertical long impeller of pump fixed structure Download PDFInfo
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- CN208073856U CN208073856U CN201721826014.4U CN201721826014U CN208073856U CN 208073856 U CN208073856 U CN 208073856U CN 201721826014 U CN201721826014 U CN 201721826014U CN 208073856 U CN208073856 U CN 208073856U
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- 238000002474 experimental method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of vertical long impeller of pump fixed structures, mainly by pump shaft, impeller body, impeller snap ring and connecting plate composition, it is characterized in that, the pump shaft includes first segment axis and second segment axis, there are one the annular grooves that can place impeller snap ring for the adjacent of first segment axis and second segment axis, the impeller body includes front shroud, impeller hub, impeller blade and back shroud, impeller hub rearward extends from the back shroud, the annular groove is terminated in, and the impeller hub and the impeller snap ring are closely, realize the circumferentially positioned of impeller body；There are one the fixation blind holes being open to impeller body rear, first segment axis to be positioned in the fixation blind hole on impeller hub, and the first segment axis and the impeller hub pass through key connection.The utility model structure reduces the length of axis, improves the rigidity of axis, and impeller nut is not used and is attached, and ensure that the practical fluidised form of medium will not deviate with design fluidised form.
Description
Technical field
The utility model is related to pumping unit technical field, more particularly to a kind of vertical long impeller of pump fixed structure.
Background technology
Vertical long shaft pump can be used for conveying 55 DEG C of clear water below, rainwater, the iron oxide severe edema due to hypofunction of the spleen, sewage, have corrosivity
Industrial wastewater, seawater and can transport 90 DEG C of liquid etc. after special designing；It is widely used in Running-water Company, at sewage
Manage factory, power plant, steel plant, the industrial and mining enterprises such as mine, and municipal plumbing, the engineerings such as control flood and drain flooded fields.Due to its working environment
Rather harsh causes production disruption so can often break down during the work time, and great life even can occur when serious
Equipment breakdown is produced, therefore, in order to ensure that site safety produces, it is convenient to overhaul, working efficiency is improved, vertical long axis pump configuration is needed
It is suitably modified.
Currently, the improvement overwhelming majority for vertical long pump configuration all concentrates on pump jackshaft support problem, guide bearing
The selection of material and structure, the improvement etc. of shaft coupling component, few improvement being related to its impeller fixed structure.Generally
For, impeller fixed structure is with axis connecting mode mainly by impeller, impeller nut, plain washer, key, axis, mechanical seal etc. zero
Part forms.When the planform and impeller the Hydraulic Design shape on impeller nut surface are inconsistent, pump can be caused in actual motion
The flow regime of medium deviates with design point, has an impact to pumping the performance in actual motion；In addition, the connection of generally use
Mode needs to be processed wheel hub at impeller inlet when installing impeller nut, this is easy for making blade at impeller inlet
At damage, the hydraulic structure at impeller inlet is destroyed, causes to pump the fluidised form in operation process and deviates with perfect condition.
China Patent No. 201521124663.0, entitled " a kind of blade wheel positioning structure in vertical long shaft pump "
Patent proposes a kind of location structure suitable for vertical long impeller of pump, which includes the pump with impeller linkage section
Axis, the impeller with impeller fixed seat, connect intersegmental positioning tapered sleeve in impeller fixed seat with impeller, and with position tapered sleeve
The connecting flange that is mutually fixably coupled of first end；The advantages of structure is to reduce the difficulty for reducing assembly, dismounting, is reduced
Reduce the probability that impeller falls off in operation process.But there is no consider pump actual motion when medium flow regime with set
Whether meter flow regime is consistent, the probability and product that may cause damage in process to impeller blade can not be also reduced
Rejection rate.
China Patent No. 201620959484.7, entitled " vertical long pump liquid lower shaft end position and sealing structure " it is special
Profit proposes one kind about vertical long pump configuration improved method, but this method relates generally to position its liquid lower shaft end and seal
The improvement of structure, by improving, which has many advantages, such as pump shaft registration, the good, good airproof performance of rigidity.But it is not directed to pair
The improvement of vertical long impeller of pump fixed structure.
For above-mentioned defect, a kind of the utility model people's utility model " vertical long impeller of pump fixed knot
Structure ", compared to the vertical long impeller of pump fixed structure generally used, which protects the complete of impeller hydraulic performance
Whole property allows the practical flow regime of medium to be consistent as far as possible with design point；In addition, reducing due to installing impeller spiral shell
Mother damages caused by blade at impeller inlet, can increase economic efficiency to a certain extent and working efficiency, energy saving.
Utility model content
Purpose of utility model：Currently, most of impeller fixed structure mainly by impeller, impeller nut, plain washer,
The parts such as key, axis, mechanical seal form, it is however generally that, it is difficult to accomplish the planform and impeller waterpower on impeller nut surface
Design shape is consistent, this will to pump the flow regime with design point of medium in actual motion and deviate, and cause
Unnecessary hydraulic loss influences the actual motion performance of pump；In addition, when installing impeller nut, need to impeller inlet wheel
It being processed at hub, this will largely cause the damage to entrance blade, and then destroy the hydraulic structure of impeller,
Further influence pumps the flow regime of medium in actual operation, causes certain economic loss and the wasting of resources.In order to gram
Disadvantages described above is taken, therefore the utility model proposes a kind of vertical long impeller of pump fixed structures, by impeller fixed structure
Improve pump actual motion when media flow state and design point there is a situation where deviateing, additionally due to the structure phase
For the impeller fixed structure generally used, do not use impeller nut as connector, thus will not be to impeller inlet at
Blade cause to damage, this also largely ensure that pump in actual moving process medium flow regime will not with set
Meter state, which exists, to be deviateed, and improves economic benefit and working efficiency, and achieved the purpose that energy saving.
To solve the above-mentioned problems, the utility model provides a kind of vertical long impeller of pump fixed structure.
The realization of the utility model is completed by following technical scheme：
A kind of vertical long impeller of pump fixed structure, including it includes pump shaft, impeller body, impeller to be interconnected to form whole
Snap ring and connecting plate, the pump shaft are made of first segment axis and second segment axis, the impeller body include front shroud, impeller hub,
Impeller blade and back shroud.
Further, there are one the annular that can place impeller snap ring is recessed for the adjacent of the first segment axis and second segment axis
Slot, the impeller snap ring are placed in the annular groove；The impeller hub rearward extends from the back shroud, then stops
At the annular groove, and the impeller hub and the impeller snap ring are closely, and the circumferential direction for realizing impeller body is fixed
Position；There are one the fixation blind holes being open towards impeller body rear on the impeller hub.
Further, the first segment axis is positioned in the fixed blind hole, and opened on the first segment axis there are one pump
Axle key hole has in the fixed blind hole and the matched wheel hub keyhole of the pump shaft keyhole, therefore the first segment axis and described
Impeller hub passes through key connection.
Further, the connecting plate is provided with mounting hole, there is matched with the mounting hole match on the impeller hub
Hole is closed, the connecting plate is connected with the impeller hub by screw, realizes the axially position of impeller body.
The utility model has the beneficial effects that：
1, the vertical long shaft pump blade-fixing device of the utility model does not make for traditional blade-fixing device
It is attached with impeller nut, therefore the hydraulic structure of impeller inlet will not be destroyed, pumps Jie in practical work process
Mass flow state will not shift with design point, improve the stability of medium operation, therefore the experiment number of the impeller of the structure
According to the reference that can be provided for the Hydraulic Design more precisely.
When 2, assembling, without the concern for the fastening to impeller nut, therefore without the concern for spanner activity when design impeller
Space to be preserved amount, reduces the difficulty of impeller the Hydraulic Design, reduces the workload of designer to a certain extent, improves
Working efficiency.
3, the length for reducing pump shaft improves the rigidity of pump shaft, increases the service life of pump shaft.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural schematic diagram of the utility model.
In figure：1, pump shaft, 2, impeller body, 3, impeller snap ring, 4, connecting plate, 5, fixed blind hole, 6, annular groove, 11, the
One section of axis, 12, second segment axis, 21, front shroud, 22, impeller hub, 23, impeller blade, 24, back shroud.
Specific implementation method
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings：
Referring to Fig.1, the utility model proposes a kind of vertical long impeller of pump fixed structure, the structure mainly by pump shaft 1,
Impeller body 2, impeller snap ring 3,4 four part of connecting plate composition.
The pump shaft 1 uses stepped construction, and impeller installation end is mainly by 12 two parts of first segment axis 11 and second segment axis
Composition, the diameter of the first segment axis 11 are slightly less than the diameter of the second segment axis 12, and the first segment axis 11 and second segment
There is an annular groove 6 that can place impeller snap ring 3 between axis 12；The beginning of the second segment axis 12 is close to the first segment axis
Connecting plate 4 is cased on the circumferencial direction of 11 ends.
The impeller body 2 includes mainly front shroud 21, impeller hub 22, impeller blade 23,24 4 part of back shroud；It is described
Impeller hub 22 starts from the back shroud 24, rearward extends, and end and the impeller snap ring 3 are located next to, terminate in the annular
Groove 6 realizes the circumferentially positioned of the impeller body 2；It is provided with fixed blind hole 5 on the impeller hub 22, direction is directed toward described the
Two sections of axis 12 have in the fixed blind hole 5 keyway, the first segment axis 11 to be passed through by the fixed blind hole 5 with the impeller body 2
Key connection；22 end of the impeller hub be provided with the matched matching hole of mounting hole on the connecting plate 4, in the embodiment
In, the impeller hub 22 is connect with the connecting plate 4 through screw, realizes the axially position of the impeller body 2.
The impeller snap ring 3 is positioned in the annular groove 6, and the annular groove 6 is located at 22 He of the impeller hub
Between the connecting plate 4；The connecting plate 4 is located on the circumferencial direction of 12 initiating terminal of second segment axis, with 11 end of first segment axis
It is adjacent, in order to be connected with the impeller body 2, there is mounting hole on the connecting plate 4, in this embodiment, on the connecting plate 4
4 mounting holes are evenly distributed with, are had and the matched matching hole of the mounting hole on the impeller hub 22.
It is above the preferred one embodiment of the utility model, is not difficult to find out, compared to the impeller being commonly used
The pump shaft of fixed structure, the vertical long shaft pump of the structure shortens a part on the whole so that and the rigidity of pump shaft gets a promotion,
The service life of pump shaft can be extended to a certain extent；In addition, the impeller fixed form of the structure, by being set on impeller hub
Set blind hole, pump shaft and impeller body be keyed, reduce the use of impeller nut, therefore when mounted, without worry because
Damage caused by for the processing to impeller inlet wheel hub to impeller blade at this, this just largely ensure that pump exists
In actual motion, the fluidised form and design fluidised form of medium ensure that the stability of flowing, reduce experiment and miss substantially without deviation
Difference.
The above, only a kind of preferred embodiment of the vertical long impeller of pump fixed structure, it should be noted that
It is that the embodiment of the impeller fixed structure is not restricted to this, therefore the scope of protection of the utility model is also not limited to
This, any one skilled in the art is within the technical scope disclosed by the utility model, according to the present utility model
Technical solution and its utility model design is subject to equivalent substitution or change, should all cover the scope of protection of the utility model it
It is interior.
Claims (3)
1. a kind of vertical long impeller of pump fixed structure, which is characterized in that the impeller fixed structure includes being interconnected to form
Whole pump shaft (1), impeller body (2), impeller snap ring (3) and connecting plate (4)；The pump shaft (1) include first segment axis (11) and
Second segment axis (12)；The impeller body (2) includes front shroud (21), impeller hub (22), impeller blade (23) and back shroud
(24)；
Further include that there are one the annulars that can place impeller snap ring (3) for the adjacent of the first segment axis (11) and second segment axis (12)
Groove (6), the impeller snap ring (3) are placed in the annular groove (6)；The impeller hub (22) is from the back shroud
(24) rearward extend, then terminate in the annular groove (6), and the impeller hub (22) and the impeller snap ring (3) are tight
It gets together, realizes the circumferentially positioned of impeller body (2)；There are one be open towards after impeller body (2) on the impeller hub (22)
The fixation blind hole (5) of side.
2. vertical long impeller of pump fixed structure according to claim 1, which is characterized in that the first segment axis (11) is put
It is placed in the fixed blind hole (5), the first segment axis (11) is provided with a pump shaft keyhole, has on the fixed blind hole (5) and institute
The matched wheel hub keyhole of pump shaft keyhole is stated, therefore the first segment axis (11) and the impeller hub (22) pass through key connection.
3. vertical long impeller of pump fixed structure according to claim 1, which is characterized in that the connecting plate (4) is provided with
Mounting hole has matching hole matched with the mounting hole, the connecting plate (4) and the impeller on the impeller hub (22)
Wheel hub (22) is connected by screw, realizes the axially position of impeller body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721826014.4U CN208073856U (en) | 2017-12-22 | 2017-12-22 | A kind of vertical long impeller of pump fixed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721826014.4U CN208073856U (en) | 2017-12-22 | 2017-12-22 | A kind of vertical long impeller of pump fixed structure |
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| Publication Number | Publication Date |
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| CN208073856U true CN208073856U (en) | 2018-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721826014.4U Active CN208073856U (en) | 2017-12-22 | 2017-12-22 | A kind of vertical long impeller of pump fixed structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050098A (en) * | 2017-12-22 | 2018-05-18 | 江苏江进泵业有限公司 | A kind of vertical long impeller of pump fixed structure |
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- 2017-12-22 CN CN201721826014.4U patent/CN208073856U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050098A (en) * | 2017-12-22 | 2018-05-18 | 江苏江进泵业有限公司 | A kind of vertical long impeller of pump fixed structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A vertical long-shaft pump impeller fixing structure Effective date of registration: 20220801 Granted publication date: 20181109 Pledgee: Jiangyan Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: JIANGSU JIANGJIN PUMP CO.,LTD. Registration number: Y2022980011660 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230714 Granted publication date: 20181109 Pledgee: Jiangyan Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: JIANGSU JIANGJIN PUMP CO.,LTD. Registration number: Y2022980011660 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A fixed structure for the impeller of a vertical long shaft pump Effective date of registration: 20231114 Granted publication date: 20181109 Pledgee: Jiangyan Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: JIANGSU JIANGJIN PUMP CO.,LTD. Registration number: Y2023980065292 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20181109 Pledgee: Jiangyan Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: JIANGSU JIANGJIN PUMP CO.,LTD. Registration number: Y2023980065292 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A fixed structure for vertical long shaft pump impeller Granted publication date: 20181109 Pledgee: Jiangyan Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: JIANGSU JIANGJIN PUMP CO.,LTD. Registration number: Y2024980032113 |