CN115539427A - Adjustable fish sucking pump impeller testing device - Google Patents
Adjustable fish sucking pump impeller testing device Download PDFInfo
- Publication number
- CN115539427A CN115539427A CN202211301523.0A CN202211301523A CN115539427A CN 115539427 A CN115539427 A CN 115539427A CN 202211301523 A CN202211301523 A CN 202211301523A CN 115539427 A CN115539427 A CN 115539427A
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- China
- Prior art keywords
- impeller
- volute
- bearing
- cover plate
- fish
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Links
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 44
- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 238000010146 3D printing Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000009360 aquaculture Methods 0.000 description 2
- 244000144974 aquaculture Species 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K79/00—Methods or means of catching fish in bulk not provided for in groups A01K69/00 - A01K77/00, e.g. fish pumps; Detection of fish; Whale fishery
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F04D29/242—Geometry, shape
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides an adjustable fish sucking pump impeller testing device which comprises a bearing, a volute, a variable frequency motor, an impeller assembly and a suction inlet, wherein the volute is arranged on the bearing; the variable frequency motor is fixed on the volute; the impeller assembly is arranged in the volute and is in transmission connection with the variable frequency motor; the suction inlet, the outer ring of the bearing and the volute are connected through a bearing bolt, and the inner ring of the bearing is connected with the impeller assembly through the bearing bolt. The adjustable fish sucking pump impeller testing device is used for testing the blades, can avoid repeated manufacture of the top hub and the bottom of the impeller, saves cost and can greatly reduce the testing period.
Description
Technical Field
The invention relates to the technical field of fish suction pump test devices, in particular to an adjustable fish suction pump impeller test device.
Background
In 2022, statistics of yearbook release data of Chinese fishery statistics shows that the yield value of the fishery in 2021 is 15158.63 million yuan, which accounts for 51.1% of the total economic value of the fishery, wherein the yield and the yield value of the fishing, breeding and offspring seeds of the fishes account for a large share. In fishing and breeding operation processes of fishery production, fishing and transferring work is needed in many occasions, a fish pump is widely applied as an efficient fishing tool, but most of the current fish pumps in the market are only used as fishing tools, so that the survival and damage of living bodies are not required too much in the fishing process, and the fishing tools are directly processed or frozen after fishing. With the increasing proportion of the aquaculture in the fishery production value, living bodies need to be conveyed, transported and caught in many occasions in the aquaculture production process, the damage rate of the fish bodies has high requirements, for example, during the seedling raising period, seedlings need to be transferred to a pond, adult fish need to be transported to the living bodies, and the like. In order to raise the efficiency, improve the degree of automation of work, the use of fish pump can raise the efficiency by a wide margin, and centrifugal fish pump is because its is small, and it is convenient to remove, and power requirement is simple, and especially adapted operation requirement, but centrifugal fish pump produces centrifugal force through the rotor rotation and carries out work, and the damage rate is than higher in live fish transport, transportation, therefore a lot of users have this worry to give up using. The main reasons for damage to live fish transportation of the centrifugal fish suction pump are related to design factors of rotor impeller blades, impeller rotating speed factors, vitality, countercurrent capacity and physique of different fishes. Because impeller design manufacturing cost is not low, and the specific trade mark aluminum alloy of material demand relates to the casting preparation, and the time cycle is long and the price is expensive, and the design and manufacturing is difficult to develop the shaping fast.
At present, a fish pump test device for designing and optimizing an impeller of a fish pump of the same size and model is not available, 3D printing is limited by size limitation, large-size 3D printing equipment is not popularized yet, and the diameter of the impeller of the fish pump of more than 8 inches is difficult to perform integral additive manufacturing through the 3D printing equipment. The aluminum alloy material can be poured only by opening the die except for 3D printing manufacture, so that the price is high, the manufacture of the die is time-consuming and labor-consuming, and the precision is uneven.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the adjustable fish pump impeller testing device which is used for testing the blades, can avoid repeated manufacture of the top hub and the bottom of the impeller, saves the cost and can greatly reduce the testing period.
In order to achieve the purpose, the invention provides an adjustable fish pump impeller testing device, which comprises a bearing, a volute, a variable frequency motor, an impeller assembly and a suction inlet, wherein the volute is arranged on the bearing; the variable frequency motor is fixed on the volute; the impeller assembly is arranged in the volute and is in transmission connection with the variable frequency motor; the suction inlet, the outer ring of the bearing and the volute are connected through a bearing bolt, and the inner ring of the bearing is connected with the impeller assembly through the bearing bolt.
Preferably, the impeller assembly comprises an impeller upper cover plate, a plurality of blades and an impeller lower cover plate; the center part of the upper cover plate of the impeller is connected with an output shaft of the variable frequency motor through a first fixing screw; the top of the blade is connected with the upper cover plate of the impeller through a second fixing screw; the top of the blade is connected with the lower cover plate of the impeller through a third fixing screw; the vanes are disposed about a central axis of the impeller assembly; a passage opening is formed in the middle of the lower cover plate of the impeller; the impeller lower cover plate, the blades and the impeller upper cover plate are matched to form a fish inlet channel.
Preferably, the volute bottom forms an opening; the suction inlet and the outer ring of the bearing are sequentially connected to the periphery of the opening; the side of the volute forms a fish outlet.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
through the cooperation of spiral case, inverter motor and impeller subassembly, can realize the test to blade in the impeller subassembly. Through different blade molded lines design tests and through the adjustment of different rotating speeds of the variable frequency motor, the impeller blade form for nondestructive conveying of different fishes is found. The test period is reduced by changing the up-and-down connection mode of the impeller. Can avoid repeated impeller top wheel hub and impeller bottom preparation, and increase the precision of blade size, shape and curved surface, decompose into 3 parts with the impeller and independently make, top wheel hub and impeller bottom shape law can use the digit control machine tool to make, and size and precision can satisfy the demand, and the blade shape generally is the curved surface, can directly adopt 3D to print the vibration material disk after adopting three-dimensional software to independently decompose out, and the precision satisfies the demand and by a wide margin save time. The curved surface shape can be quickly manufactured and replaced after being modified every time, and the manufacturing and testing period is greatly shortened. Simultaneously install the bearing additional and make both ends all have the fastening about whole blade, form simple beam structure, avoid traditional fish sucking pump only to have the cantilever beam structure of motor and impeller fastening, reduce this step of dynamic balance must be done to the impeller in the test process, reduce test cycle by a wide margin.
Drawings
FIG. 1 is a cross-sectional view of an adjustable fish pump impeller testing apparatus in accordance with an embodiment of the present invention;
FIG. 2 is a schematic structural view of an impeller assembly according to an embodiment of the present invention;
fig. 3 is an exploded view of an impeller assembly of an embodiment of the present invention.
Detailed Description
The following description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, which are set forth in detail below to provide a better understanding of the function and features of the invention.
Referring to fig. 1 to 3, an adjustable fish pump impeller testing apparatus according to an embodiment of the present invention includes a bearing 1, a volute 2, a variable frequency motor 4, an impeller assembly, and a suction port 9; the variable frequency motor 4 is fixed on the volute 2; the impeller assembly is arranged in the volute 2 and is in transmission connection with the variable frequency motor 4; the suction inlet 9, the outer ring of the bearing 1 and the volute 2 are connected through a bearing bolt 8, and the inner ring of the bearing 1 is connected with the impeller assembly through the bearing bolt 8.
The impeller component comprises an impeller upper cover plate 3, a plurality of blades 6 and an impeller lower cover plate 7; the central part of the upper cover plate 3 of the impeller is connected with an output shaft of a variable frequency motor 4 through a first fixing screw 5; the top of the blade 6 is connected with the upper cover plate 3 of the impeller through a second fixing screw 10; the top of the blade 6 is connected with the lower cover plate 7 of the impeller through a third fixing screw 11; the blades 6 are arranged around the central axis of the impeller assembly; a passage opening is formed in the middle of the lower cover plate 7 of the impeller; the lower cover plate 7 of the impeller, the blades 6 and the upper cover plate 3 of the impeller are matched to form a fish inlet channel.
The bottom of the volute 2 forms an opening; the suction inlet 9 and the outer ring of the bearing 1 are sequentially connected to the periphery of the opening; the side of the volute 2 forms a fish outlet.
The invention discloses an adjustable fish sucking pump impeller test device, which is arranged in a disassembling method as follows:
after the variable frequency motor 4 and the volute 2 are installed, the upper impeller cover plate 3 and the blades 6 are connected through the second fixing screws 10, then the lower impeller cover plate 7 is connected with the upper blades 6 through the third fixing screws 11 to complete installation of an impeller assembly, the suction inlet 9, the bearing 1 and the lower impeller cover plate 7 are fastened through the bearing bolts 8, and finally, integral installation and adjustment are carried out through the first fixing screws 5 and the bearing bolts 8. And after the test is finished, the first fixing screw 5, the bearing bolt 8, the second fixing screw 10 and the third fixing screw 11 are disassembled when the blade 6 is replaced.
The invention is mainly used for designing the impeller blade 6 of the fish pump, the blade 6 is decomposed into a plurality of parts to be combined, the size of the blade 6 part is much smaller than that of the whole impeller after the decomposition, the rapid design and adjustment line type can be carried out through 3D printing for optimization, the hydraulic and live fish conveying tests can be carried out after the assembly, and the impeller types suitable for conveying different fish living bodies can be rapidly tested through the mode.
The invention designs and optimizes the impeller aiming at the fish suction pump with the same size and model, optimizes the curve curvature of the streamline by adjusting the molded line of the blade 6, carries out modeling by three-dimensional software, combines and shears the blade 6 model, the impeller top cover and the impeller bottom surface to obtain the matched single blade 6, directly beats out the independent blade 6 by 3D printing, then installs the independent blade 6 with the top and the bottom, and finally installs the independent blade in the whole fish suction pump for test. The method is mainly characterized in that 3D printing is limited by size limitation, large-size 3D printing equipment is not popularized yet, and the diameter of the fish sucking pump impeller of more than 8 inches is difficult to perform overall additive manufacturing through the 3D printing equipment. The casting of the aluminum alloy material can be carried out only by opening the die except for 3D printing and manufacturing, so that the price is high, the manufacturing of the die is time-consuming and labor-consuming, and the precision is also uneven. In order to avoid repeated manufacture of the top hub and the bottom of the impeller and increase the accuracy of the size, the shape and the curved surface of the blade 6, the impeller is decomposed into 3 parts to be independently manufactured, the shape rules of the top hub and the bottom of the impeller can be manufactured by using a numerical control machine, the size and the accuracy can meet requirements, the shape of the blade 6 is generally a curved surface, 3D printing material increase manufacture can be directly adopted after the blade is independently decomposed by adopting three-dimensional software, the accuracy meets requirements, and the time is greatly saved. The curved surface shape can be quickly manufactured and replaced after being modified every time, and the manufacturing and testing period is greatly shortened. Install bearing 1 additional simultaneously and make whole blade 6 both ends all have the fastening from top to bottom, form simple beam structure, avoid traditional fish sucking pump only to have the cantilever beam structure of motor and impeller fastening, reduce this step of dynamic balance must be done to the impeller in the test process, reduce test cycle by a wide margin.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments should not be construed as limitations of the invention, except insofar as the following claims are interpreted to cover the invention.
Claims (3)
1. An adjustable fish suction pump impeller testing device is characterized by comprising a bearing (1), a volute (2), a variable frequency motor (4), an impeller assembly and a suction port (9); the variable frequency motor (4) is fixed on the volute (2); the impeller assembly is arranged in the volute (2) and is in transmission connection with the variable frequency motor (4); the suction inlet (9), the outer ring of the bearing (1) and the volute (2) are connected through a bearing bolt (8), and the inner ring of the bearing (1) is connected with the impeller assembly through the bearing bolt (8).
2. The adjustable fish pump impeller testing device of claim 1, wherein the impeller assembly comprises an impeller upper cover plate (3), a plurality of blades (6) and an impeller lower cover plate (7); the central part of the upper cover plate (3) of the impeller is connected with an output shaft of the variable frequency motor (4) through a first fixing screw (5); the top of the blade (6) is connected with the upper cover plate (3) of the impeller through a second fixing screw (10); the top of the blade (6) is connected with the lower impeller cover plate (7) through a third fixing screw (11); the blades (6) are arranged around the central shaft of the impeller assembly; a passage opening is formed in the middle of the lower impeller cover plate (7); the lower impeller cover plate (7), the blades (6) and the upper impeller cover plate (3) are matched to form a fish inlet channel.
3. The adjustable fish pump impeller testing device according to claim 2, wherein the bottom of the volute (2) forms an opening; the suction inlet (9) and the outer ring of the bearing (1) are sequentially connected to the periphery of the opening; the side part of the volute (2) forms a fish outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211301523.0A CN115539427B (en) | 2022-10-24 | 2022-10-24 | Adjustable fish suction pump impeller test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211301523.0A CN115539427B (en) | 2022-10-24 | 2022-10-24 | Adjustable fish suction pump impeller test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115539427A true CN115539427A (en) | 2022-12-30 |
| CN115539427B CN115539427B (en) | 2024-05-24 |
Family
ID=84719203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211301523.0A Active CN115539427B (en) | 2022-10-24 | 2022-10-24 | Adjustable fish suction pump impeller test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115539427B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715552A (en) * | 2016-04-12 | 2016-06-29 | 苏州百硕自动化环保设备有限公司 | Centrifugal sewage pump impeller with adjustable impeller blades |
| CN208338700U (en) * | 2018-07-02 | 2019-01-08 | 山东圣达船舶配套有限公司 | A kind of descending fishpump |
| CN209824912U (en) * | 2019-04-28 | 2019-12-24 | 中国海洋大学 | Portable fish sucking device |
| CN111795000A (en) * | 2020-07-06 | 2020-10-20 | 江苏大学镇江流体工程装备技术研究院 | Swirl pump impeller with guide rails and fixed blades |
| CN114135518A (en) * | 2021-11-30 | 2022-03-04 | 重庆跃进机械厂有限公司 | Centrifugal fresh water pump |
-
2022
- 2022-10-24 CN CN202211301523.0A patent/CN115539427B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715552A (en) * | 2016-04-12 | 2016-06-29 | 苏州百硕自动化环保设备有限公司 | Centrifugal sewage pump impeller with adjustable impeller blades |
| CN208338700U (en) * | 2018-07-02 | 2019-01-08 | 山东圣达船舶配套有限公司 | A kind of descending fishpump |
| CN209824912U (en) * | 2019-04-28 | 2019-12-24 | 中国海洋大学 | Portable fish sucking device |
| CN111795000A (en) * | 2020-07-06 | 2020-10-20 | 江苏大学镇江流体工程装备技术研究院 | Swirl pump impeller with guide rails and fixed blades |
| CN114135518A (en) * | 2021-11-30 | 2022-03-04 | 重庆跃进机械厂有限公司 | Centrifugal fresh water pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115539427B (en) | 2024-05-24 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Ping Inventor after: Chen Zhixin Inventor after: Wang Yunjie Inventor before: Liu Ping |
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| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |