CN219754826U - Hydrodynamic pump driving device, hydrodynamic pump and fertilizer distributor - Google Patents
Hydrodynamic pump driving device, hydrodynamic pump and fertilizer distributor Download PDFInfo
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- CN219754826U CN219754826U CN202320210091.6U CN202320210091U CN219754826U CN 219754826 U CN219754826 U CN 219754826U CN 202320210091 U CN202320210091 U CN 202320210091U CN 219754826 U CN219754826 U CN 219754826U
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- hydrodynamic pump
- impeller
- drive device
- pump drive
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 93
- 230000000903 blocking effect Effects 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a hydrodynamic pump driving device, a hydrodynamic pump and a fertilizer distributor, wherein the hydrodynamic pump driving device comprises a shell and an impeller, a first cavity and a second cavity are arranged in the shell, and the impeller is rotatably arranged in the second cavity; the liquid inlet of the shell is connected with the first cavity, and the liquid outlet of the shell is connected with the second cavity; the side wall of the second cavity is provided with a liquid inlet channel, and the first cavity is communicated with the second cavity through the liquid inlet channel. According to the hydrodynamic pump driving device, the liquid inlet channel is arranged on the side wall of the second cavity, when liquid flows from the first cavity to the second cavity, the change of the flow direction of the liquid can be realized, and compared with the prior art, the driving device can change the impact angle on the impeller, so that the thrust acting on the impeller is larger, and the pushing effect on the impeller is better.
Description
Technical Field
The utility model belongs to the field of agricultural equipment, and particularly relates to a hydrodynamic pump driving device, a hydrodynamic pump and a fertilizer applicator.
Background
The hydrodynamic pump uses water power as a power source for the pump work, is mainly applied to the field of agricultural production, for example, a fertilizer suction pump on a fertilizer distributor is a hydrodynamic pump, and the fertilizer suction pump mainly uses irrigation water to push an impeller to rotate, so that the fertilizer suction pump connected with the impeller is driven to work, and compared with an electric pump, the energy is saved.
In the prior art, the impeller is generally horizontally arranged in the drainage pipeline, the impeller is connected with the hydrodynamic pump through a connecting shaft which is longitudinally arranged in the water conveying pipe, the impeller is pushed to rotate through water flow in the water conveying pipe, and then power is transmitted to the hydrodynamic pump through the connecting shaft, but the impeller is directly pushed to rotate through water flow in the water conveying pipe, so that the pushing effect on the impeller is poor, and even the impact force of water flow can not drive the impeller to rotate when the water flow is small, so that the normal work of the hydrodynamic pump is influenced.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model discloses a hydrodynamic pump driving device, which adopts the following technical scheme:
the hydrodynamic pump driving device comprises a shell and an impeller, wherein a first cavity and a second cavity are arranged in the shell, and the impeller can be rotatably arranged in the second cavity; the liquid inlet of the shell is connected with the first cavity, and the liquid outlet of the shell is connected with the second cavity; the side wall of the second cavity is provided with a liquid inlet channel, and the first cavity is communicated with the second cavity through the liquid inlet channel.
Further, the first cavity is arranged around the second cavity, and the first cavity is not communicated with the head and the tail;
preferably, the first cavity is a volute cavity;
preferably, a blocking piece is arranged on the first cavity, and the head end and the tail end of the first cavity are blocked by the blocking piece;
preferably, the first cavity gradually reduces in inner diameter along with the flowing direction of the liquid.
Further, the impeller edge extends into the first cavity; and/or, the second cavity is a cylindrical cavity.
Further, the liquid inlet is perpendicular to the liquid outlet; and/or the impeller is connected with a driving shaft.
Further, the impeller comprises a base and blades, the blades are arc-shaped blades, the bending direction of the blades is opposite to the rotating direction of the impeller, and the blades are radially arranged on the base.
Further, the blade includes a first impact portion, a flow guiding portion, and a second impact portion, which are sequentially connected, preferably, the first impact portion extends into the first cavity, and the second impact portion is bent from the flow guiding portion to a direction opposite to the rotation direction of the impeller.
Further, the shell comprises a first shell part and a second shell part,
a first liquid outlet cavity is arranged in the middle of the first shell part, a first volute groove is arranged on the first shell part around the first liquid outlet cavity,
a second liquid outlet cavity is arranged in the middle of the second shell part, a second volute groove is arranged on the second shell part around the second liquid outlet cavity,
the first volute groove and the second volute groove form a first cavity, and the first liquid outlet cavity and the second liquid outlet cavity form a second cavity.
Further, the blocking member blocks the liquid inlet channel, and preferably, the blocking member is located between the first cavity and the second cavity.
The utility model also discloses a hydrodynamic pump, which comprises any hydrodynamic pump driving device.
The utility model also discloses a fertilizer applicator comprising any one of the hydrodynamic pumps.
Compared with the prior art, the utility model has the following beneficial effects:
according to the hydrodynamic pump driving device, the liquid inlet channel is arranged on the side wall of the second cavity, when liquid flows from the first cavity to the second cavity, the change of the flow direction of the liquid can be realized, and compared with the prior art, the driving device can change the impact angle on the impeller, so that the thrust acting on the impeller is larger, and the pushing effect on the impeller is better.
According to the utility model, through the arrangement that the edge of the impeller extends into the first cavity, the impact direction of liquid in the first cavity is tangential to the impeller, so that the impeller is better pushed to rotate.
According to the utility model, through the arrangement that the second impact part is bent from the flow guiding part to the opposite direction of the rotation of the impeller, when liquid flows out of the impeller, the second impact part can be impacted again, so that the impeller is better pushed to rotate.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;
FIG. 2 is a schematic view of a first housing part according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a second housing part according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a housing structure according to another embodiment of the present utility model;
fig. 5 is a schematic view of an impeller according to an embodiment of the present utility model.
The device comprises a 1-shell, a 11-first shell part, a 12-second shell part, a 13-first liquid outlet cavity, a 14-first volute groove, a 15-second liquid outlet cavity, a 16-second volute groove, a 17-through hole, a 2-impeller, a 21-base, a 22-blade, a 23-first impact part, a 24-flow guiding part, a 25-second impact part, a 3-first cavity, a 31-first cavity head end, a 32-second cavity tail end, a 4-second cavity, a 5-liquid inlet, a 6-liquid outlet, a 7-liquid outlet gap and an 8-blocking piece.
Detailed Description
The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1-5, the utility model discloses a hydrodynamic pump driving device, which comprises a shell 1 and an impeller 2, wherein a first cavity 3 and a second cavity 4 are arranged in the shell 1, the impeller 2 can be rotatably arranged in the second cavity 4, namely, the impeller 2 is horizontally arranged in the second cavity 4, and the impeller 2 can rotate in the second cavity 4; the liquid inlet 5 of the shell 1 is connected with the first cavity 3, and the liquid outlet 6 of the shell 1 is connected with the second cavity 4; the side wall of the second cavity 4 is provided with a liquid inlet channel 7, the liquid inlet channel 7 can be a channel or a through hole, and the first cavity 3 is communicated with the second cavity 4 through the liquid inlet channel 7. According to the hydrodynamic pump driving device, the liquid inlet channel 7 is arranged on the side wall of the second cavity 4, when liquid flows from the first cavity 3 to the second cavity 4, the change of the flow direction of the liquid can be realized, so that the impeller 2 is impacted on the side surface of the impeller 2, and compared with the prior art, the driving device can change the impact angle on the impeller 2, so that the thrust acting on the impeller 2 is larger, and the pushing effect on the impeller 2 is better.
Preferably, the first cavity 3 is disposed around the second cavity 4, and the first cavity 3 is not connected end to end, as shown in fig. 1, after the liquid enters the liquid inlet 5, a part of the liquid flows in the first cavity 3, the flowing direction is shown by solid arrows, and another part of the liquid flows from the first cavity 3 into the second cavity 4 through the liquid inlet channel 7, and finally flows out of the liquid outlet 6, as shown by dashed arrows. The rotation direction of the impeller 2 is consistent with the flow direction of liquid in the first cavity 3 (namely, the solid arrow direction), and the hydrodynamic pump driving device provided by the utility model is arranged around the second cavity 4 through the first cavity 3, so that when the liquid flows in the first cavity 3, the change of the flow direction of the liquid can be realized, a vortex is formed, and the impeller 2 is better impacted to drive the impeller 2 to rotate.
Preferably, the first cavity 3 is a volute cavity, and the second cavity 4 is a cylindrical cavity.
Preferably, the first cavity 3 gradually decreases in inner diameter along with the flowing direction of the liquid. Through the setting that the internal diameter of first cavity 3 reduces gradually for in the liquid flow direction second cavity 4 in the first cavity 3, the liquid that remains in the first cavity 3 can also continue to promote impeller 2 rotation.
Preferably, as shown in fig. 3, the first cavity 3 is provided with a blocking member 8, and the head end 31 and the tail end 32 of the first cavity 3 are blocked by the blocking member 8, so that the head end 31 of the first cavity is not communicated with the tail end 32 of the first cavity, and the liquid flowing into the housing 1 can flow smoothly through the first cavity 3 and the second cavity 4 and then flow out of the housing 1. The first cavity head end 31 is the maximum inner diameter end of the first cavity 3, and the first cavity tail end 32 is the minimum inner diameter end of the first cavity 3. Further, the blocking member 8 blocks the liquid inlet channel 7 (makes the liquid inlet channel 7 be a "non-annular channel"), and further, the blocking member 8 is located between the first cavity 3 and the second cavity 4.
Preferably, the edge of the impeller 2 extends into the first cavity 3, so that the liquid can further push the impeller 2 to rotate while flowing in the first cavity 3.
Preferably, the liquid inlet 5 is perpendicular to the liquid outlet 6, the impeller 2 is connected with a driving shaft, the driving shaft extends to the outside of the housing 1 through the through hole 17 in the second cavity 4 and is connected with the hydrodynamic pump, and when the hydrodynamic pump driving device is connected with the hydrodynamic pump, after the liquid is fully stored between the second cavity 4 and the hydrodynamic pump, the liquid flowing into the housing 1 flows out of the housing 1 from the liquid outlet 5.
Preferably, as shown in fig. 5, the impeller 2 includes a base 21 and a blade 22, the base 21 is preferably a conical base, the blade 22 is an arc-shaped blade, the bending direction of the blade 22 is opposite to the rotation direction of the impeller 2, the blade 22 is radially disposed on the base 21, the blade 22 includes a first impact portion 23, a flow guiding portion 24, and a second impact portion 25, which are sequentially connected, the first impact portion 23 extends into the first cavity 3, specifically, the top of the first impact portion 23 extends into the first cavity 3, the top of the first impact portion 23 is in arc-shaped transition with the flow guiding portion 24, and the top of the first impact portion 23 is one end of the first impact portion 23 away from the base 21. The second impact portion 25 is bent by the guide portion 24 in a direction opposite to the rotation direction of the impeller 2. By the arrangement that the second impact part 23 is bent from the flow guiding part 24 to the reverse direction of the rotation of the impeller 2, when the liquid flows out of the impeller 2, the second impact part 23 can be impacted again, so that the impeller 2 is better pushed to rotate.
The casing 1 of this embodiment may be an integral body, that is, an integrally formed casing, or may be composed of a first casing portion 11 and a second casing portion 12, where a first liquid outlet cavity 13 is disposed in the middle of the first casing portion 11, a first volute groove 14 is disposed around the first liquid outlet cavity 13 on the first casing portion 11, a second liquid outlet cavity 15 is disposed in the middle of the second casing portion 12, a second volute groove 16 is disposed around the second liquid outlet cavity 15 on the second casing portion 12, and the first volute groove 14 and the second volute groove 16 form a first cavity 3, and the first liquid outlet cavity 13 and the second liquid outlet cavity 15 form a second cavity 4.
The inner edge of the first liquid outlet cavity 13 is not completely contacted with the inner edge of the second liquid outlet cavity 15, so that a liquid inlet channel 7 is formed.
The blocking piece 8 is located at the inner edge of the first liquid outlet cavity 13 or the inner edge of the second liquid outlet cavity 15, taking the example that the blocking piece 8 is located at the inner edge of the first liquid outlet cavity 13, when the first liquid outlet cavity 13 and the second liquid outlet cavity 15 form the second cavity 4, the blocking piece 8 contacts with the inner edge of the second liquid outlet cavity 15, the inner edge part of the first liquid outlet cavity 13 outside the blocking piece 8 does not contact with the inner edge of the second liquid outlet cavity 15, so as to form the liquid inlet channel 7, and meanwhile, as shown in fig. 3, the blocking piece 8 also enables the head end 31 of the first cavity to be blocked with the tail end 32 of the first cavity.
The embodiment also discloses a hydrodynamic pump, which comprises any one of the hydrodynamic pump driving devices.
The embodiment also discloses a fertilizer applicator, which comprises any one of the hydrodynamic pumps.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art may still make modifications to the technical solutions described in the foregoing embodiments, or may make equivalent substitutions for some or all of the technical features thereof; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (15)
1. A hydrodynamic pump drive device, characterized in that: the device comprises a shell and an impeller, wherein a first cavity and a second cavity are arranged in the shell, and the impeller can be rotatably arranged in the second cavity;
the liquid inlet of the shell is connected with the first cavity, and the liquid outlet of the shell is connected with the second cavity;
the side wall of the second cavity is provided with a liquid inlet channel, and the first cavity is communicated with the second cavity through the liquid inlet channel.
2. The hydrodynamic pump drive device according to claim 1, wherein: the first cavity is arranged around the second cavity, and the first cavity is not communicated with the head and the tail.
3. The hydrodynamic pump drive device according to claim 1, wherein: the first cavity is a volute cavity.
4. The hydrodynamic pump drive device according to claim 1, wherein: the first cavity is provided with a blocking piece, and the head end and the tail end of the first cavity are blocked by the blocking piece.
5. The hydrodynamic pump drive device according to claim 1, wherein: the first cavity gradually reduces in inner diameter along with the flowing direction of liquid.
6. The hydrodynamic pump drive device according to claim 1, wherein: the edge of the impeller extends into the first cavity; and/or, the second cavity is a cylindrical cavity.
7. The hydrodynamic pump drive device according to claim 1, wherein: the liquid inlet is perpendicular to the liquid outlet; and/or the impeller is connected with a driving shaft.
8. The hydrodynamic pump drive device according to claim 1, wherein: the impeller comprises a base and blades, wherein the blades are arc-shaped blades, the bending direction of the blades is opposite to the rotation direction of the impeller, and the blades are radially arranged on the base.
9. The hydrodynamic pump drive device according to claim 8, wherein: the blade comprises a first impact part, a flow guiding part and a second impact part which are sequentially connected.
10. The hydrodynamic pump drive device according to claim 9, wherein: the first impact part extends into the first cavity, and the second impact part is bent from the flow guiding part to the opposite direction of rotation of the impeller.
11. The hydrodynamic pump drive device according to claim 1, wherein: the housing comprises a first housing part and a second housing part,
a first liquid outlet cavity is arranged in the middle of the first shell part, a first volute groove is arranged on the first shell part around the first liquid outlet cavity,
a second liquid outlet cavity is arranged in the middle of the second shell part, a second volute groove is arranged on the second shell part around the second liquid outlet cavity,
the first volute groove and the second volute groove form a first cavity, and the first liquid outlet cavity and the second liquid outlet cavity form a second cavity.
12. The hydrodynamic pump drive device according to claim 4, wherein: the blocking piece blocks the liquid inlet channel.
13. The hydrodynamic pump drive device according to claim 12, wherein: the barrier is located between the first cavity and the second cavity.
14. A hydrodynamic pump, characterized by: comprising a hydrodynamic pump drive device according to any one of claims 1-13.
15. A fertilizer applicator comprising the hydrodynamic pump of claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320210091.6U CN219754826U (en) | 2023-02-14 | 2023-02-14 | Hydrodynamic pump driving device, hydrodynamic pump and fertilizer distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320210091.6U CN219754826U (en) | 2023-02-14 | 2023-02-14 | Hydrodynamic pump driving device, hydrodynamic pump and fertilizer distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219754826U true CN219754826U (en) | 2023-09-26 |
Family
ID=88090526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320210091.6U Active CN219754826U (en) | 2023-02-14 | 2023-02-14 | Hydrodynamic pump driving device, hydrodynamic pump and fertilizer distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219754826U (en) |
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2023
- 2023-02-14 CN CN202320210091.6U patent/CN219754826U/en active Active
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