CN105422478B - Composite and multi-purpose agricultural water pump - Google Patents

Composite and multi-purpose agricultural water pump Download PDF

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Publication number
CN105422478B
CN105422478B CN201510988699.1A CN201510988699A CN105422478B CN 105422478 B CN105422478 B CN 105422478B CN 201510988699 A CN201510988699 A CN 201510988699A CN 105422478 B CN105422478 B CN 105422478B
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China
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pump
composite
water pump
screw rod
shell
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CN201510988699.1A
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CN105422478A (en
Inventor
王成
戴雯惠
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Suzhou Institute of Trade and Commerce
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Suzhou Institute of Trade and Commerce
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Priority to CN201510988699.1A priority Critical patent/CN105422478B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/12Combinations of two or more pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven

Abstract

The invention provides a kind of composite and multi-purpose agricultural water pump, including variable speed electric motors, particularly, spiral flow constant-pressure pump and internally lifting helicoidal pump, wherein, internally lifting helicoidal pump includes the shell of cylinder, screw rod is provided with axis in shell, flight is arranged with screw rod, flight is engaged and can be movable relatively with the inwall of shell;Spiral flow constant-pressure pump has a central shaft, and variable speed electric motors, particularly is connected with central shaft, and screw rod is detachably connected with central shaft.The composite and multi-purpose agricultural water pump can be as needed, opens variable speed electric motors, particularly, realizes the water delivery of slow-speed of revolution internally lifting helicoidal pump, meets the job requirement that water, the desilting of fish pond stream etc. are changed in fish pond;And can be as needed, disengage internally lifting helicoidal pump, motor and centrifugal pump direct connection, the high rotating speed of water pump, high-lift operation.The composite and multi-purpose agricultural water pump can need flexibly to change occupation mode according to user, can be widely used in agricultural plumbing, fish pond and change the various irrigation and drainage places such as water, the desilting of fish pond stream, fish pond aeration.

Description

Composite and multi-purpose agricultural water pump
Technical field
The present invention relates to agricultural water pump technical field, more particularly to a kind of composite and multi-purpose agricultural water pump.
Background technology
It is known that agricultural drainage and irrigation can run into various complex situations:(1) such as require to carry out greatly farmland within the regular hour The irrigation and drainage of amount, conventional method is worked simultaneously using multiple water pumps, will certainly so be caused the wasting of resources, be increased equipment and artificial Cost;(2) crops high-land run into, and the relatively low situation of water source physical features, conveyed using centrifugal multistage pump multiple centrifugal pump;(3) for supporting Growing fish pond and substituting water needs flexible delivery, prevents from damaging fry;(4) immersible pump is miscellaneous for mud, impurity pasture and water and particle Thing is more sensitive, and screen pack need to be installed outside pump, and pasture and water impurity is being filtered because suction is all adsorbed after work a period of time On the net, so as to cause pump work efficiency low or be stopped.Conventional agricultural water pump has a variety of shapes such as centrifugal pump, immersible pump at present Formula:Centrifugal pump structure is simple, lift is higher, and, the mechanical efficiency of water pump is about 70% or so, for mud with respect to water yield less The larger killing rodents in farmland of sand amount content has water pump serious wear, and power consumption is big, is existed when to fishpond water irrigation and drainage The problem of big to fry damage;When pump case internal memory has air, because the density of the density ratio liquid of air is much smaller and produce compared with Small centrifugal force, so that the pressure differential at ullage and Pump Suction Nozzle is not enough to interior liquid being pressed into pump, i.e. centrifugal pump Without suction capacity, prevent the problem of centrifugal pump is from conveying liquid (" air sinuses phenomenon ").Immersible pump is compared with above-mentioned centrifugal pump, no In the presence of " air sinuses phenomenon ", exterior lower-pump submersible pump is then directly from the pumping chamber after impeller or diffuser exit discharge liquor Body, the liquid cooling that motor is also pumped;Immersible pump is that liquid is done work, and liquid energy is converted mechanical energy into, in centrifugal force In the presence of water is discharged, the pump discharge is big, but lift is very low, and pump efficiency only reaches 68%, and energy resource consumption is larger;In addition, There is certain limitation to the solid dielectric pumped, insulating requirements are higher, it is impossible to which satisfaction soars range request.From presented hereinbefore two kinds Agricultural water pump, which can be seen that them, respectively advantage and disadvantage, and it is mainly, and mechanical efficiency (energy-conservation) is low, security is poor and purposes is single etc. Problem.
Existing patent 200710098031.5 is entitled《A kind of spiral flow constant-pressure pump》Patent of invention provide one kind Spiral flow constant-pressure pump, including a pump case and an impeller, pump housing endophragm are circular arc, and impeller, which includes one, to be had after a hub portion Cover plate, formed with back shroud on front side of the back shroud integral multiple front vanes and on rear side of back shroud with back shroud formation one Multiple pairs of blades of body, each front vane is being bent and clockwise counterclockwise at back shroud circular edge Tilt, the bending sloping portion formed an angle with the preceding surface shape of back shroud, pair blade linear extension to impeller outward flange, this The vent centrifugal power of bending sloping portion back root part is more than the vent centrifugal power of free margins before bending sloping portion when pump is rotated, after The flow stream pressure of root also mutually should be higher than that the flow stream pressure of preceding free margins, and liquid flow path direction points to free margins by back root part, produce vertical To flowing, as wheel rotation produces rotational flow formation spiral flow, the space between multiple front vanes on impeller is entered back into, then Secondary pressurization, it acts on similar centrifugal multistage pump multiple centrifugal pump, so as to obtain the output of high-lift and constant pressure.
Although above-mentioned spiral flow constant-pressure pump can reach that constant pressure, solid impurity pump characteristic, purposes is single, early stage lifting liquid Body efficiency is low, and the use requirement of farmland discharging-irrigating is unable to reach at the low rotational speed.
The content of the invention
It is an object of the invention to provide a kind of composite and multi-purpose agricultural water pump, to solve existing agricultural water pump irrigation and drainage The problem of purposes is single, efficiency is low.
The second object of the present invention is to provide a kind of composite and multi-purpose agricultural water pump, to solve existing agricultural water pump The problem of row's feedwater of special occasions such as drawn water in fish pond has big to fry damage.
To achieve the above object, the invention provides a kind of composite and multi-purpose agricultural water pump, including variable speed electric motors, particularly, spiral Constant pressure pump and internally lifting helicoidal pump are flowed, wherein, the internally lifting helicoidal pump includes the axis in the shell of cylinder, the shell Place, which is provided with screw rod, the screw rod, is arranged with flight, and the flight is engaged with the inwall of shell and can relative fortune It is dynamic;
The spiral flow constant-pressure pump has a central shaft, and the variable speed electric motors, particularly is connected with the central shaft, the screw rod It is detachably connected with central shaft.
It is preferred that being connected as one between the flight and the screw rod by way of seamless welding.
It is preferred that the thickness of the flight is 1mm~4mm.
It is preferred that with the flight both sides of the screw rod connecting place be provided with rounding, the rounding it is a diameter of 1mm~5mm.
It is preferred that the screw rod is detachably connected by a connecting rod with the central shaft.
It is preferred that the connecting rod is connected through a screw thread with the central shaft, the screw rod passes through with the connecting rod Pin is connected.
It is preferred that when being connected between the screw rod and the central shaft, the shell and the spiral flow constant-pressure pump Water inlet is connected.
It is preferred that one end of the shell is additionally provided with helicoidal pump delivery port.
The composite and multi-purpose agricultural water pump that the present invention is provided can be as needed, opens variable speed electric motors, particularly, realizes the slow-speed of revolution The water delivery of internally lifting helicoidal pump, meet the job requirement that water, the desilting of fish pond stream etc. are changed in fish pond;And as needed, disengage interior rise Formula helicoidal pump, motor and centrifugal pump direct connection, the high rotating speed of water pump, high-lift operation.Meet the work such as agricultural plumbing, fish pond aeration It is required that.The composite and multi-purpose agricultural water pump can according to user need flexibly change occupation mode, can be widely used in it is agricultural to The various agricultural drainage and irrigation places such as water, the desilting of fish pond stream, fish pond aeration are changed in draining, fish pond.
Brief description of the drawings
The composite and multi-purpose agricultural water pump overall structure figure that Fig. 1 provides for the present invention;
The composite and multi-purpose agricultural water pump part-structure figure that Fig. 2 provides for the present invention;
The screw rod and flight coupling part structure chart for the composite and multi-purpose agricultural water pump that Fig. 3 provides for the present invention;
The flight cross-section parts structural representation for the composite and multi-purpose agricultural water pump that Fig. 4 provides for the present invention.
Label declaration:10- variable speed electric motors, particularlies;20- spiral flow constant-pressure pumps;30- internally lifting helicoidal pumps;40- connecting rods;In 21- Heart axle;22- constant pressure pump delivery ports;23- constant pressure pump water inlets;31- shells;32- screw rods;33- flights;34- delivery outlets; 35- helicoidal pump delivery ports;40- connecting rods;41- pins.
Embodiment
For the present invention is better described, hereby with a preferred embodiment, and accompanying drawing is coordinated to elaborate the present invention, specifically It is as follows:
As shown in Figure 1 and Figure 2, the composite and multi-purpose agricultural water pump that the present embodiment is provided, including variable speed electric motors, particularly 10, spiral Flow constant pressure pump 20 and internally lifting helicoidal pump 30.Wherein, during internally lifting helicoidal pump 30 is included in the shell 31 of cylinder, shell 31 It is provided with axle on screw rod 32, screw rod 32 and is arranged with flight 33, and flight 33 is engaged with the inwall of shell 31, can phase To motion.
Specifically, spiral flow constant-pressure pump 20 has a central shaft 21, the power output shaft of variable speed electric motors, particularly 30 and the central shaft 21 are connected, and can be that the offer power of spiral flow constant-pressure pump 20 makes its work by the central shaft 21.
And be to be detachably connected between the screw rod 32 and central shaft 21 of internally lifting helicoidal pump 30.Wherein, screw rod 32 with When being connected between central shaft 21, shell 31 is connected with the water inlet 23 of spiral flow constant-pressure pump 20.One end of shell 31 is additionally provided with Helicoidal pump delivery port 35, namely shell 31 are connected by helicoidal pump delivery port 35 with the water inlet 23 of spiral flow constant-pressure pump 20.
Specifically, in the present embodiment, screw rod 32 is detachably connected by a connecting rod 40 and central shaft 21.Wherein, even Extension bar 40 is detachably connected with central shaft 21 by screw thread, and screw rod 32 carried out with connecting rod 40 by pin 41 it is removable Unload connection.
As shown in figure 3, being connected as one between flight 33 and screw rod 32 by way of seamless welding.
As shown in figure 4, the thickness D of flight 33 span is 1mm~4mm.And with the spiral shell of the connecting place of screw rod 32 The both sides of blade 33 are equipped with rounding, and the diameter R of rounding span is 1mm~5mm.Wherein, thickness D and diameter R value those skilled in the art can be set to any appropriate value according to the need in practical application.
The course of work for the composite and multi-purpose agricultural water pump that the present embodiment is provided is as follows:
1st, when screw rod 32 is connected with central shaft 21, namely internally lifting helicoidal pump with spiral flow constant-pressure pump when being connected, this When:Variable speed electric motors, particularly starts the slow rotation of central shaft 21 for driving spiral flow constant voltage water pump by motor at a slow speed, and central shaft 21 drives again Connecting rod 40 is rotated, and connecting rod 40 drives screw rod 32 to carry out the rotation relative to shell in shell 31, in flight 33 By lifting liquid under effect, and exported from delivery outlet 34.
2nd, when screw rod 32 is not connected to central shaft 21, also internally lifting helicoidal pump and spiral flow constant-pressure pump are separated, Now variable speed electric motors, particularly starts quick, and spiral flow constant voltage water pump high-speed rotation is driven by motor, in the presence of constant pressure pump liquid from Delivery port 22 is exported.
The composite and multi-purpose agricultural water pump can be as needed, opens variable speed electric motors, particularly, realizes slow-speed of revolution internally lifting helicoidal pump Water delivery, meet the job requirement that water, the desilting of fish pond stream etc. are changed in fish pond;And as needed, disengage internally lifting helicoidal pump, motor With centrifugal pump direct connection, the high rotating speed of water pump, high-lift operation.Meet the job requirements such as agricultural plumbing, fish pond aeration.The combined type Multipurpose agricultural water pump can according to user need flexibly change occupation mode, can be widely used in agricultural plumbing, fish pond change water, The various agricultural drainage and irrigation places such as the desilting of fish pond stream, fish pond aeration.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those skilled in the art the invention discloses technical scope in, to the present invention deformation or replacement done, should all cover Within protection scope of the present invention.Especially, each part dimension of the invention etc. is made on the basis of core technology scheme of the present invention The obvious adaptability change gone out should be also included within the scope of the present invention.Therefore, protection scope of the present invention should be with Described scope of the claims is defined.

Claims (8)

1. a kind of composite and multi-purpose agricultural water pump, it is characterised in that including variable speed electric motors, particularly, spiral flow constant-pressure pump and internally lifting spiral shell Pump is revolved, wherein, the internally lifting helicoidal pump includes being provided with screw rod at the axis in the shell of cylinder, the shell, described Flight is arranged with screw rod, the flight is engaged and can be movable relatively with the inwall of shell;
The spiral flow constant-pressure pump has a central shaft, and the variable speed electric motors, particularly is connected with the central shaft, and the screw rod is with Heart axle is detachably connected.
2. composite and multi-purpose agricultural water pump according to claim 1, it is characterised in that the flight and the spiral Connected as one between bar by way of seamless welding.
3. composite and multi-purpose agricultural water pump according to claim 1 or 2, it is characterised in that the thickness of the flight For 1mm~4mm.
4. composite and multi-purpose agricultural water pump according to claim 1 or 2, it is characterised in that be connected with the screw rod The flight both sides at place are provided with rounding, a diameter of 1mm~5mm of the rounding.
5. composite and multi-purpose agricultural water pump according to claim 1 or 2, it is characterised in that the screw rod passes through one Connecting rod is detachably connected with the central shaft.
6. composite and multi-purpose agricultural water pump according to claim 5, it is characterised in that the connecting rod and the center Axle is connected through a screw thread, and the screw rod is connected with the connecting rod by pin.
7. composite and multi-purpose agricultural water pump according to claim 1 or 2, it is characterised in that the screw rod with it is described When being connected between central shaft, the shell is connected with the water inlet of the spiral flow constant-pressure pump.
8. composite and multi-purpose agricultural water pump according to claim 1 or 2, it is characterised in that one end of the shell is also Provided with helicoidal pump delivery port.
CN201510988699.1A 2015-12-24 2015-12-24 Composite and multi-purpose agricultural water pump Active CN105422478B (en)

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CN201510988699.1A CN105422478B (en) 2015-12-24 2015-12-24 Composite and multi-purpose agricultural water pump

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Application Number Priority Date Filing Date Title
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CN105422478B true CN105422478B (en) 2017-10-31

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108547772B (en) * 2018-05-29 2020-06-19 宋海波 Multi-sleeve spliced screw pump with high lift
CN108757478B (en) * 2018-05-29 2019-12-17 北京国铁安捷科技有限公司 Multi-casing spliced screw pump
CN112211825A (en) * 2020-09-08 2021-01-12 江苏瀚联环保装备科技有限公司 Inward-inclination spiral blade impurity pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56118590A (en) * 1980-02-22 1981-09-17 Mitsubishi Electric Corp Automated electric pump
JPS5751995A (en) * 1980-09-12 1982-03-27 Kubota Ltd Submerged motor pump
CN2323178Y (en) * 1997-12-03 1999-06-09 魏佳运 Two-stage combined pump
CN2535582Y (en) * 2001-09-01 2003-02-12 林竞宇 Double-combination pump special for sulfurization machine
CN101956719A (en) * 2010-10-06 2011-01-26 赵恩新 Small deep well submersible centrifugal pump
CN205243870U (en) * 2015-12-24 2016-05-18 苏州经贸职业技术学院 Modular agricultural water pump of multipurpose

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56118590A (en) * 1980-02-22 1981-09-17 Mitsubishi Electric Corp Automated electric pump
JPS5751995A (en) * 1980-09-12 1982-03-27 Kubota Ltd Submerged motor pump
CN2323178Y (en) * 1997-12-03 1999-06-09 魏佳运 Two-stage combined pump
CN2535582Y (en) * 2001-09-01 2003-02-12 林竞宇 Double-combination pump special for sulfurization machine
CN101956719A (en) * 2010-10-06 2011-01-26 赵恩新 Small deep well submersible centrifugal pump
CN205243870U (en) * 2015-12-24 2016-05-18 苏州经贸职业技术学院 Modular agricultural water pump of multipurpose

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