CN112377418B - High efficiency centrifugal pump convenient to adjust - Google Patents
High efficiency centrifugal pump convenient to adjust Download PDFInfo
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- CN112377418B CN112377418B CN202011444110.9A CN202011444110A CN112377418B CN 112377418 B CN112377418 B CN 112377418B CN 202011444110 A CN202011444110 A CN 202011444110A CN 112377418 B CN112377418 B CN 112377418B
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- circular plate
- plate
- pump shell
- liquid
- rotating shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0027—Varying behaviour or the very pump
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- 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
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
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- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
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- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a high-efficiency centrifugal pump convenient to adjust, which comprises a supporting base plate, wherein a connecting seat is arranged above the supporting base plate, a rotating shaft is transversely arranged on the inner side of the connecting seat, one end of the connecting seat is provided with a pump shell, a partition plate is fixedly arranged at an opening at one side of the pump shell, a detachable circular plate is fixedly arranged at an opening at the other side of the pump shell, and the other end of the rotating shaft extends into the pump shell and is fixedly provided with an impeller; the invention can adjust the blade spacing of the impeller, thereby adjusting the displacement of the centrifugal pump in unit time, the centrifugal pump has strong applicability, the invention forms negative pressure between the first circular plate and the second circular plate by arranging the guide hole on the first circular plate, thereby improving the liquid adsorption capacity of the impeller, accelerating the liquid flow in the pump shell, and improving the working efficiency.
Description
Technical Field
The invention relates to a centrifugal pump, in particular to a high-efficiency centrifugal pump convenient to adjust.
Background
Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. Before the water pump is started, a pump shell and a water suction pipe are filled with water, then a motor is started, a pump shaft drives an impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller in a centrifugal motion, and flows into a water pressing pipeline of the water pump through a flow channel of a volute-shaped pump shell; the blade interval to the impeller is not convenient for adjust to traditional centrifugal pump, and the displacement in the unit interval is not convenient for adjust, and the impeller of traditional centrifugal pump is lower to the adsorption efficiency of liquid, and work efficiency is low, and the impeller of traditional centrifugal pump is worn and torn easily moreover, can't guarantee the life of centrifugal pump.
Disclosure of Invention
The invention aims to provide a high-efficiency centrifugal pump convenient to adjust, which can adjust the blade spacing of an impeller by rotating an installation column, driving each fixing plate to rotate by the installation column, pulling a connecting plate to move by a connecting piece by the fixing plate, sliding two connecting columns in corresponding guide holes at the moment, driving the blades to slide along the direction of the guide holes, leading the blades to be diffused outwards or folded inwards, adjusting the spacing between two adjacent blades, fixing a connecting flange and a first circular plate by bolts after the spacing is adjusted, putting the adjusted impeller into a pump shell, installing the impeller at the end part of a rotating shaft, and fixedly connecting a detachable circular plate and the pump shell by bolts, so that the displacement of the centrifugal pump in unit time can be adjusted, different drainage requirements can be met, and the centrifugal pump can be suitable for different liquids, the adaptability is strong, and the technical problems that the blade spacing of the impeller is inconvenient to adjust and the water discharge in unit time is inconvenient to adjust in the traditional centrifugal pump are solved;
the invention rotates through the output shaft of the driving motor and drives the rotating shaft to rotate through the coupler, the rotating shaft drives the impeller to rotate, liquid enters the pump shell from the liquid inlet and flows to the first circular plate, the liquid impacts the buffering bump, the liquid is dispersed through the buffering bump and flows to the surface of the first circular plate, part of the liquid enters between the first circular plate and the second circular plate through the guide hole, because of the limitation of the guide hole, pressure difference exists between the first circular plate and the second circular plate and one side of the first circular plate, so that the liquid entering the pump shell through the liquid inlet is accelerated to flow to the impeller, the liquid on one side of the first circular plate rotates under the drive of each blade, the liquid between the first circular plate and the second circular plate rotates under the drive of each guide plate and is thrown out of the pump shell through the liquid outlet under the action of centrifugal force, the invention arranges the guide hole on the first circular plate, negative pressure is formed between the first circular plate and the second circular plate, so that the adsorption capacity of the impeller to liquid is improved, the liquid flow in the pump shell is accelerated, the working efficiency is improved, and the technical problem of low working efficiency of the traditional centrifugal pump is solved;
according to the invention, the blades are extruded while liquid flows at one side of the first circular plate, and are driven to slide along the direction of the guide hole, the blades drive the connecting plate to move through the connecting column, the connecting plate drives the connecting outer rod II to move, the connecting outer rod II pushes the connecting inner rod inwards towards the connecting outer rod I, and the buffer spring blocks the connecting outer rod II to move under the action of elasticity.
The purpose of the invention can be realized by the following technical scheme:
a high-efficiency centrifugal pump convenient to adjust comprises a supporting base plate, wherein a connecting seat is arranged above the supporting base plate, a supporting frame is fixedly arranged at the bottom of the connecting seat and fixedly connected with the supporting base plate through bolts, a rotating shaft is transversely arranged on the inner side of the connecting seat and rotatably connected with the connecting seat, one end of the rotating shaft extends to the outer side of the connecting seat, a motor seat is fixedly arranged on the supporting base plate, a driving motor is fixedly arranged at the top of the motor seat, the end part of an output shaft of the driving motor is fixedly connected with one end, located on the outer side of the connecting seat, of the rotating shaft through a coupler, a pump shell is arranged at one end of the connecting seat, openings are arranged on two sides of the pump shell, a partition plate is fixedly arranged at one side opening of the pump shell, the pump shell is fixedly connected with the connecting seat through bolts, and a detachable circular plate is fixedly arranged at the other side opening of the pump shell, the other end of the rotating shaft extends into the pump shell and is fixedly provided with an impeller, the detachable circular plate is provided with a liquid inlet, and the top of the pump shell is provided with a liquid outlet;
the impeller includes first plectane and second plectane, first plectane and second plectane parallel, just first plectane and the coincidence of second plectane axial lead, be provided with a plurality of deflector between first plectane and the second plectane, the both sides of a plurality of deflector respectively with the opposite face fixed connection of first plectane and second plectane, and a plurality of deflector is radian annular distribution such as, a side surface that the inlet was kept away from to the second plectane and the other end fixed connection of axis of rotation, a side surface movable mounting that first plectane is close to the inlet has a plurality of blade, and radian annular distribution such as a plurality of blade is.
Further, the opposite side surface middle part of first plectane is provided with the erection column, the one end fixed mounting of erection column has flange, flange passes through bolt and first plectane fixed connection, the opposite side surface fixed mounting of second plectane has fixed set post, the other end of erection column rotates and installs in fixed set post, fixed mounting has a plurality of fixed plate on the erection column, and a plurality of fixed plate is equal radian annular distribution on the outer peripheral face of erection column, the fixed plate is articulated with the one end of connecting piece, the other end of connecting piece is articulated with the connecting plate, a side fixed surface of connecting plate installs two spliced poles, and the one end of connecting plate and the blade fixed connection who corresponds are kept away from to two spliced poles.
Furthermore, a plurality of guiding holes have been seted up on the first plectane, the guiding hole is located between two adjacent deflectors, the guiding hole is the arc structure, and a plurality of guiding hole is radian annular distribution such as, a plurality of guiding hole and a plurality of connecting plate one-to-one, spliced pole and guiding hole sliding fit.
Furthermore, a buffer bump is fixedly arranged in the middle of the surface of one side of the first circular plate.
Further, the connecting piece is including connecting outer pole one, the one end of connecting outer pole one is articulated with the fixed plate, the telescopic connection of the other end of connecting outer pole one has interior pole of connection, the pole of connecting keeps away from the one end of connecting outer pole one and the one end fixed connection of connecting outer pole two, the other end of connecting outer pole two is articulated with the connecting plate, the cover is equipped with buffer spring in the pole of connecting, buffer spring's one end with be connected outer pole butt, buffer spring's the other end with be connected outer pole two butts.
Furthermore, connect outer pole one and be hollow structure, the spout has all been seted up to the both sides of connecting outer pole one, the one end of keeping away from connecting outer pole two in connecting the interior pole extends to connecting outer pole one, and is located to connect the interior pole of outer pole one and fixed mounting has two slip posts, and two slip posts are respectively slidable mounting in two spouts, the outer peripheral face of connecting the interior pole and the inner peripheral surface sliding fit who is connected outer pole one.
Further, the installation cavity has been seted up to the inboard of connecting seat, the axis of rotation is located the fixed mounting on the surface of installation cavity and has the installation lantern ring, the installation lantern ring is located one side of division board, fixed mounting has a plurality of heat dissipation flabellum on the installation lantern ring, and a plurality of heat dissipation flabellum is equal radian annular distribution, a plurality of through-hole has all been seted up to the top and the bottom of connecting seat, and a plurality of through-hole is linked together with the installation cavity.
Further, the working method of the centrifugal pump specifically comprises the following steps:
step one, rotating the mounting columns, driving each fixing plate to rotate by the mounting columns, pulling the connecting plates to move by the fixing plates through the connecting pieces, sliding the two connecting columns in the corresponding guide holes at the moment, driving the blades to slide along the direction of the guide holes, enabling the blades to spread outwards or furl inwards, adjusting the distance between every two adjacent blades, fixing the connecting flange and the first circular plate through bolts after the distance is adjusted, putting the adjusted impeller into a pump shell, installing the impeller at the end part of the rotating shaft, and fixedly connecting the detachable circular plate with the pump shell through bolts;
step two, starting the driving motor, driving the output shaft of the driving motor to rotate and driving the rotating shaft to rotate through the coupler, driving the impeller to rotate through the rotating shaft, enabling the liquid to enter the pump shell from the liquid inlet, and flows to the first circular plate, the liquid impacts on the buffering bumps, the liquid is dispersed through the buffering bumps, and flows to the surface of the first circular plate, part of the liquid enters between the first circular plate and the second circular plate through the guide holes, due to the restriction of the guide hole, a pressure difference exists between the first circular plate and the second circular plate and one side of the first circular plate, negative pressure is formed between the first circular plate and the second circular plate, so that liquid entering the pump case through the liquid inlet flows to the impeller at an accelerated speed, the liquid on one side of the first circular plate is driven by each blade to rotate, the liquid between the first circular plate and the second circular plate is driven by each guide plate to rotate, and the liquid is thrown out of the pump case through the liquid outlet under the action of centrifugal force;
and step three, the liquid extrudes the blades while flowing on one side of the first circular plate, the blades are driven to slide along the direction of the guide hole, the blades drive the connecting plate to move through the connecting column, the connecting plate drives the connecting outer rod II to move, the connecting outer rod II pushes the connecting inner rod inwards to the connecting outer rod I, and the buffer spring blocks the connecting outer rod II to move under the action of elastic force and provides buffer for the blades.
The invention has the beneficial effects that:
according to the invention, the mounting columns are rotated to drive the fixing plates to rotate, the fixing plates pull the connecting plates to move through the connecting pieces, at the moment, the two connecting columns slide in the corresponding guide holes and drive the blades to slide along the direction of the guide holes, so that the blades are diffused outwards or folded inwards, the distance between two adjacent blades is adjusted, after the distance adjustment is finished, the connecting flange and the first circular plate are fixed through the bolts, the adjusted impeller is placed in the pump shell and is arranged at the end part of the rotating shaft, and the detachable circular plate is fixedly connected with the pump shell through the bolts;
the invention rotates through the output shaft of the driving motor and drives the rotating shaft to rotate through the coupler, the rotating shaft drives the impeller to rotate, liquid enters the pump shell from the liquid inlet and flows to the first circular plate, the liquid impacts the buffering bump, the liquid is dispersed through the buffering bump and flows to the surface of the first circular plate, part of the liquid enters between the first circular plate and the second circular plate through the guide hole, because of the limitation of the guide hole, pressure difference exists between the first circular plate and the second circular plate and one side of the first circular plate, so that the liquid entering the pump shell through the liquid inlet is accelerated to flow to the impeller, the liquid on one side of the first circular plate rotates under the drive of each blade, the liquid between the first circular plate and the second circular plate rotates under the drive of each guide plate and is thrown out of the pump shell through the liquid outlet under the action of centrifugal force, the invention arranges the guide hole on the first circular plate, negative pressure is formed between the first circular plate and the second circular plate, so that the adsorption capacity of the impeller on liquid is improved, the liquid flow in the pump shell is accelerated, and the working efficiency is improved;
according to the centrifugal pump, liquid flows on one side of the first circular plate and simultaneously extrudes the blades and drives the blades to slide along the direction of the guide hole, the blades drive the connecting plate to move through the connecting column, the connecting plate drives the connecting outer rod II to move, the connecting outer rod II pushes the connecting inner rod to the connecting outer rod I, and the buffer spring blocks the connecting outer rod II to move under the action of elasticity.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a high efficiency centrifugal pump of the present invention that is easily adjustable;
FIG. 2 is a schematic structural view of an impeller according to the present invention;
FIG. 3 is a schematic view of a side surface structure of a first circular plate according to the present invention;
FIG. 4 is a schematic view of the other side surface structure of the first circular plate according to the present invention;
fig. 5 is a schematic structural view of the connector of the present invention.
In the figure: 1. a support base plate; 2. a connecting seat; 201. a mounting cavity; 202. a through hole; 3. a rotating shaft; 4. a support frame; 5. a motor base; 6. a drive motor; 7. a pump housing; 8. a liquid inlet; 9. a liquid outlet; 10. a partition plate; 11. an impeller; 12. a first circular plate; 121. a guide hole; 13. a second circular plate; 14. mounting a column; 15. a connecting flange; 16. fixing the sleeve column; 17. a blade; 18. a fixing plate; 19. a connecting member; 20. a connecting plate; 21. connecting columns; 22. a guide plate; 23. a buffer bump; 24. connecting the first outer rod; 241. a chute; 25. connecting the inner rod; 26. connecting the outer rod II; 27. a buffer spring; 28. a sliding post; 29. mounting a lantern ring; 30. a heat dissipation fan blade; 31. the circular plate can be detached.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-5, a high-efficiency centrifugal pump convenient to adjust comprises a supporting base plate 1, a connecting seat 2 is arranged above the supporting base plate 1, a supporting frame 4 is fixedly arranged at the bottom of the connecting seat 2, the supporting frame 4 is fixedly connected with the supporting base plate 1 through a bolt, a rotating shaft 3 is transversely arranged on the inner side of the connecting seat 2, the rotating shaft 3 is rotatably connected with the connecting seat 2, one end of the rotating shaft 3 extends to the outer side of the connecting seat 2, a motor seat 5 is fixedly arranged on the supporting base plate 1, a driving motor 6 is fixedly arranged at the top of the motor seat 5, the end part of an output shaft of the driving motor 6 is fixedly connected with one end of the rotating shaft 3, which is positioned on the outer side of the connecting seat 2, through a coupler, a pump case 7 is arranged at one end of the connecting seat 2, openings are arranged at both sides of the pump case 7, a partition plate 10 is fixedly arranged at one side opening of the pump case 7, the pump shell 7 is fixedly connected with the connecting seat 2 through a bolt, a detachable circular plate 31 is fixedly installed at an opening at the other side of the pump shell 7, the other end of the rotating shaft 3 extends into the pump shell 7 and is fixedly provided with an impeller 11, a liquid inlet 8 is formed in the detachable circular plate 31, and a liquid outlet 9 is formed in the top of the pump shell 7;
Another side surface middle part of first plectane 12 is provided with erection column 14, the one end fixed mounting of erection column 14 has flange 15, flange 15 passes through bolt and first plectane 12 fixed connection, another side surface fixed mounting of second plectane 13 has fixed set post 16, the other end of erection column 14 rotates and installs in fixed set post 16, fixed mounting has a plurality of fixed plate 18 on the erection column 14, and a plurality of fixed plate 18 is equal radian annular distribution on the outer peripheral face of erection column 14, fixed plate 18 is articulated with the one end of connecting piece 19, the other end of connecting piece 19 is articulated with connecting plate 20, a side fixed surface of connecting plate 20 installs two spliced poles 21, and the one end that connecting plate 20 was kept away from to two spliced poles 21 is with the blade 17 fixed connection that corresponds.
A plurality of guiding holes 121 have been seted up on first plectane 12, guiding hole 121 is located between two adjacent deflector 22, guiding hole 121 is the arc structure, and a plurality of guiding hole 121 is radian annular distribution such as, a plurality of guiding hole 121 and a plurality of connecting plate 20 one-to-one, spliced pole 21 and guiding hole 121 sliding fit.
A buffer bump 23 is fixedly arranged in the middle of one side surface of the first circular plate 12.
Connecting piece 19 is including connecting outer pole 24, the one end of connecting outer pole 24 is articulated with fixed plate 18, the telescopic connection of the other end of connecting outer pole 24 has interior pole 25 of connection, the one end of connecting outer pole 24 and the one end fixed connection of connecting outer pole two 26 are kept away from to interior pole 25 of connection, the other end of connecting outer pole two 26 is articulated with connecting plate 20, the cover is equipped with buffer spring 27 on the pole 25 of connection, buffer spring 27's one end with be connected outer pole 24 butt, buffer spring 27's the other end with be connected outer pole two 26 butts.
The first connecting outer rod 24 is of a hollow structure, sliding grooves 241 are formed in two sides of the first connecting outer rod 24, one end, far away from the second connecting outer rod 26, of the inner connecting rod 25 extends into the first connecting outer rod 24, two sliding columns 28 are fixedly mounted on the inner connecting rod 25 located in the first connecting outer rod 24, the two sliding columns 28 are respectively mounted in the two sliding grooves 241 in a sliding mode, and the outer peripheral face of the inner connecting rod 25 is in sliding fit with the inner peripheral face of the first connecting outer rod 24.
The working method of the centrifugal pump specifically comprises the following steps:
step one, the mounting columns 14 are rotated, the mounting columns 14 drive the fixing plates 18 to rotate, the fixing plates 18 pull the connecting plates 20 to move through the connecting pieces 19, at the moment, the two connecting columns 21 slide in the corresponding guide holes 121 and drive the blades 17 to slide along the direction of the guide holes 121, so that the blades 17 are diffused outwards or folded inwards, the distance between every two adjacent blades 17 is adjusted, after the distance is adjusted, the connecting flange 15 and the first circular plate 12 are fixed through bolts, the adjusted impeller 11 is placed in the pump shell 7 and is installed at the end part of the rotating shaft 3, and the detachable circular plate 31 is fixedly connected with the pump shell 7 through the bolts;
step two, the driving motor 6 is started, the output shaft of the driving motor 6 rotates and drives the rotating shaft 3 to rotate through the coupler, the rotating shaft 3 drives the impeller 11 to rotate, the liquid enters the pump shell 7 from the liquid inlet 8 and flows to the first circular plate 12, the liquid impacts the buffering bumps 23, the liquid is dispersed through the buffering bumps 23 and flows to the surface of the first circular plate 12, part of the liquid enters between the first circular plate 12 and the second circular plate 13 through the guide holes 121, due to the limitation of the guide holes 121, a pressure difference exists between the first circular plate 12 and the second circular plate 13 and one side of the first circular plate 12, so that negative pressure is formed between the first circular plate 12 and the second circular plate 13, the liquid entering the pump shell 7 through the liquid inlet 8 is accelerated to flow to the impeller 11, the liquid on one side of the first circular plate 12 is driven by each blade 17 to rotate, the liquid between the first circular plate 12 and the second circular plate 13 is driven by each guide plate 22 to rotate, and is thrown out of the pump shell 7 through the liquid outlet 9 under the action of centrifugal force;
step three, the liquid extrudes the blades 17 while flowing on one side of the first circular plate 12, and drives the blades 17 to slide along the direction of the guide holes 121, the blades 17 drive the connecting plate 20 to move through the connecting column 21, the connecting plate 20 drives the second connecting outer rod 26 to move, the second connecting outer rod 26 pushes the inner connecting rod 25 inwards to the first connecting outer rod 24, and the buffer spring 27 blocks the movement of the second connecting outer rod 26 under the action of elastic force and provides buffer for the blades 17.
According to the invention, the mounting columns 14 are rotated, the mounting columns 14 drive the fixing plates 18 to rotate, the fixing plates 18 pull the connecting plates 20 to move through the connecting pieces 19, at the moment, the two connecting columns 21 slide in the corresponding guide holes 121 and drive the blades 17 to slide along the direction of the guide holes 121, so that the blades 17 are outwards diffused or inwards gathered, the distance between two adjacent blades 17 is adjusted, after the distance is adjusted, the connecting flange 15 and the first circular plate 12 are fixed through bolts, the adjusted impeller 11 is placed in the pump shell 7, the impeller 11 is arranged at the end part of the rotating shaft 3, and the detachable circular plate 31 is fixedly connected with the pump shell 7 through bolts, so that the distance between the blades 17 of the impeller 11 can be adjusted, the water discharge amount of the centrifugal pump in unit time can be adjusted, different water discharge requirements can be met, and meanwhile, the centrifugal pump can be suitable for different liquids, the applicability is strong;
the invention rotates through the output shaft of the driving motor 6 and drives the rotating shaft 3 to rotate through the coupling, the rotating shaft 3 drives the impeller 11 to rotate, liquid enters the pump shell 7 from the liquid inlet 8 and flows to the first circular plate 12, the liquid impacts the buffering lug 23, the liquid is dispersed through the buffering lug 23 and flows to the surface of the first circular plate 12, part of the liquid enters between the first circular plate 12 and the second circular plate 13 through the guide hole 121, because of the limitation of the guide hole 121, pressure difference exists between the first circular plate 12 and the second circular plate 13 and one side of the first circular plate 12, the liquid entering the pump shell 7 through the liquid inlet 8 is accelerated to flow to the impeller 11, the liquid on one side of the first circular plate 12 rotates under the drive of each blade 17, the liquid between the first circular plate 12 and the second circular plate 13 rotates under the drive of each guide plate 22, and is thrown out of the pump shell 7 through the liquid outlet 9 under the action of centrifugal force, according to the invention, the guide hole 121 is formed on the first circular plate 12, so that negative pressure is formed between the first circular plate 12 and the second circular plate 13, thereby improving the liquid adsorption capacity of the impeller 11, accelerating the liquid flow in the pump shell 7 and improving the working efficiency;
according to the centrifugal pump, liquid flows on one side of the first circular plate 12 and simultaneously extrudes the blades 17, the blades 17 are driven to slide along the direction of the guide holes 121, the blades 17 drive the connecting plate 20 to move through the connecting column 21, the connecting plate 20 drives the second connecting outer rod 26 to move, the second connecting outer rod 26 pushes the inner connecting rod 25 into the first connecting outer rod 24, and the buffer spring 27 blocks the second connecting outer rod 26 from moving under the action of elasticity.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. The high-efficiency centrifugal pump convenient to adjust is characterized by comprising a supporting base plate (1), wherein a connecting seat (2) is arranged above the supporting base plate (1), a supporting frame (4) is fixedly arranged at the bottom of the connecting seat (2), the supporting frame (4) is fixedly connected with the supporting base plate (1) through bolts, a rotating shaft (3) is transversely arranged on the inner side of the connecting seat (2), the rotating shaft (3) is rotatably connected with the connecting seat (2), one end of the rotating shaft (3) extends to the outer side of the connecting seat (2), a motor seat (5) is fixedly arranged on the supporting base plate (1), a driving motor (6) is fixedly arranged at the top of the motor seat (5), the end part of an output shaft of the driving motor (6) is fixedly connected with one end of the rotating shaft (3) which is positioned on the outer side of the connecting seat (2) through a coupler, a pump shell (7) is arranged at one end of the connecting seat (2), openings are formed in two sides of the pump shell (7), a partition plate (10) is fixedly installed at the opening at one side of the pump shell (7), the pump shell (7) is fixedly connected with the connecting seat (2) through a bolt, a detachable circular plate (31) is fixedly installed at the opening at the other side of the pump shell (7), the other end of the rotating shaft (3) extends into the pump shell (7) and is fixedly provided with an impeller (11), a liquid inlet (8) is formed in the detachable circular plate (31), and a liquid outlet (9) is formed in the top of the pump shell (7);
the impeller (11) comprises a first circular plate (12) and a second circular plate (13), the first circular plate (12) is parallel to the second circular plate (13), the axial leads of the first circular plate (12) and the second circular plate (13) coincide, a plurality of guide plates (22) are arranged between the first circular plate (12) and the second circular plate (13), two sides of the guide plates (22) are fixedly connected with opposite surfaces of the first circular plate (12) and the second circular plate (13) respectively, the guide plates (22) are distributed in an annular shape with equal radian, one side surface of the second circular plate (13), which is far away from the liquid inlet (8), is fixedly connected with the other end of the rotating shaft (3), a plurality of blades (17) are movably mounted on one side surface of the first circular plate (12), which is close to the liquid inlet (8), and the blades (17) are distributed in an annular shape with equal radian;
the middle part of the other side surface of the first circular plate (12) is provided with an installation column (14), one end of the mounting column (14) is fixedly provided with a connecting flange (15), the connecting flange (15) is fixedly connected with the first circular plate (12) through a bolt, a fixed sleeve column (16) is fixedly arranged on the surface of the other side of the second circular plate (13), the other end of the mounting column (14) is rotatably arranged in the fixed sleeve column (16), a plurality of fixing plates (18) are fixedly arranged on the mounting column (14), the fixing plates (18) are annularly distributed on the peripheral surface of the mounting column (14) in an equal radian, the fixing plate (18) is hinged with one end of a connecting piece (19), the other end of the connecting piece (19) is hinged with a connecting plate (20), two connecting columns (21) are fixedly mounted on the surface of one side of the connecting plate (20), and one ends, far away from the connecting plate (20), of the two connecting columns (21) are fixedly connected with the corresponding blades (17);
the first circular plate (12) is provided with a plurality of guide holes (121), the guide holes (121) are positioned between two adjacent guide plates (22), the guide holes (121) are of arc-shaped structures, the guide holes (121) are distributed annularly in an equal radian, the guide holes (121) correspond to the connecting plates (20) one by one, and the connecting columns (21) are in sliding fit with the guide holes (121);
the connecting piece (19) comprises a first connecting outer rod (24), one end of the first connecting outer rod (24) is hinged to the fixing plate (18), the other end of the first connecting outer rod (24) is telescopically connected with a first connecting inner rod (25), one end, far away from the first connecting outer rod (24), of the first connecting inner rod (25) is fixedly connected with one end of a second connecting outer rod (26), the other end of the second connecting outer rod (26) is hinged to the connecting plate (20), a buffer spring (27) is sleeved on the first connecting inner rod (25), one end of the buffer spring (27) is abutted to the first connecting outer rod (24), and the other end of the buffer spring (27) is abutted to the second connecting outer rod (26);
connect outer pole one (24) and be hollow structure, spout (241) have all been seted up to the both sides of connecting outer pole one (24), the one end of connecting outer pole two (26) is kept away from in connecting interior pole (25) extends to connecting outer pole one (24), and is located and connects fixedly mounted on pole (25) in the connection of outer pole one (24) have two slip posts (28), and two slip posts (28) are slidable mounting respectively in two spout (241), the outer peripheral face of connecting interior pole (25) and the inner peripheral surface sliding fit of connecting outer pole one (24).
2. An adjustable high-efficiency centrifugal pump according to claim 1, wherein a buffering bump (23) is fixedly installed at the middle of one side surface of the first circular plate (12).
3. The high-efficiency centrifugal pump convenient to adjust according to claim 1, wherein a mounting cavity (201) is opened on the inner side of the connecting seat (2), a mounting sleeve ring (29) is fixedly mounted on the surface of the rotating shaft (3) in the mounting cavity (201), the mounting sleeve ring (29) is positioned on one side of the partition plate (10), a plurality of radiating fan blades (30) are fixedly mounted on the mounting sleeve ring (29), the plurality of radiating fan blades (30) are distributed in an annular shape with equal radian, a plurality of through holes (202) are opened on the top and the bottom of the connecting seat (2), and the plurality of through holes (202) are communicated with the mounting cavity (201).
4. An adjustable high efficiency centrifugal pump according to claim 1, wherein the method of operation of the centrifugal pump comprises the steps of:
step one, a mounting column (14) is rotated, the mounting column (14) drives each fixing plate (18) to rotate, the fixing plates (18) pull a connecting plate (20) to move through a connecting piece (19), at the moment, two connecting columns (21) slide in corresponding guide holes (121), and drive blades (17) to slide along the direction of the guide holes (121), so that the blades (17) are diffused outwards or folded inwards, the distance between every two adjacent blades (17) is adjusted, after the distance adjustment is finished, a connecting flange (15) and a first circular plate (12) are fixed through bolts, the adjusted impeller (11) is placed into a pump shell (7), the impeller (11) is mounted at the end part of a rotating shaft (3), and a detachable circular plate (31) is fixedly connected with the pump shell (7) through the bolts;
step two, a driving motor (6) is started, an output shaft of the driving motor (6) rotates and drives a rotating shaft (3) to rotate through a coupler, the rotating shaft (3) drives an impeller (11) to rotate, liquid enters a pump shell (7) from a liquid inlet (8) and flows to a first circular plate (12), the liquid collides on a buffering bump (23), the liquid is dispersed through the buffering bump (23) and flows to the surface of the first circular plate (12), part of the liquid enters a space between the first circular plate (12) and a second circular plate (13) through a guide hole (121), due to the limitation of the guide hole (121), a pressure difference exists between the first circular plate (12) and the second circular plate (13) and one side of the first circular plate (12), negative pressure is formed between the first circular plate (12) and the second circular plate (13), and the liquid entering the pump shell (7) through the liquid inlet (8) is accelerated to flow to the impeller (11), the liquid on one side of the first circular plate (12) is driven by each blade (17) to rotate, and the liquid between the first circular plate (12) and the second circular plate (13) is driven by each guide plate (22) to rotate and is thrown out of the pump shell (7) through the liquid outlet (9) under the action of centrifugal force;
step three, liquid extrudes the blade (17) while flowing at one side of the first circular plate (12), and drives the blade (17) to slide along the direction of the guide hole (121), the blade (17) drives the connecting plate (20) to move through the connecting column (21), the connecting plate (20) drives the connecting outer rod II (26) to move, the connecting outer rod II (26) pushes the connecting inner rod (25) to the connecting outer rod I (24), the buffer spring (27) blocks the connecting outer rod II (26) to move under the action of elastic force, and the buffer is provided for the blade (17).
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| CN202011444110.9A CN112377418B (en) | 2020-12-08 | 2020-12-08 | High efficiency centrifugal pump convenient to adjust |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011444110.9A CN112377418B (en) | 2020-12-08 | 2020-12-08 | High efficiency centrifugal pump convenient to adjust |
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| CN112377418A CN112377418A (en) | 2021-02-19 |
| CN112377418B true CN112377418B (en) | 2022-05-10 |
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| CN115750394B (en) * | 2022-12-22 | 2023-10-20 | 江苏翔宇灌溉设备有限公司 | Blade-adjusting type water pump |
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| CN112377418A (en) | 2021-02-19 |
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