CN113266574B - Light vertical multistage centrifugal pump - Google Patents
Light vertical multistage centrifugal pump Download PDFInfo
- Publication number
- CN113266574B CN113266574B CN202110537400.6A CN202110537400A CN113266574B CN 113266574 B CN113266574 B CN 113266574B CN 202110537400 A CN202110537400 A CN 202110537400A CN 113266574 B CN113266574 B CN 113266574B
- Authority
- CN
- China
- Prior art keywords
- pump
- coupling
- pump body
- cavity
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
-
- 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
-
- 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
-
- 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
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
-
- 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
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/04—Units comprising pumps and their driving means the pump being fluid-driven
-
- 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
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
-
- 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
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a light vertical multistage centrifugal pump, which comprises a pump body, a coupling mechanism, a motor, an operation mechanism and an air exhaust mechanism, wherein the pump body is arranged on a working plane in the vertical direction; a water outlet pipeline and a water inlet pipeline are symmetrically arranged in the pump body by the central axis, one end of the water outlet pipeline and one end of the water inlet pipeline are respectively communicated with the water pipe and are provided with valves, and the other ends of the water outlet pipeline and the water inlet pipeline are respectively communicated with the operation mechanism; the conventional multistage centrifugal pump cannot be automatically adjusted according to the change of the liquid pressure in the pump body, so that the working efficiency of the centrifugal pump is reduced, and the energy loss is increased; on the other hand, long-term use can frequently cause pump shaft fatigue, thereby damaging the motor bearing.
Description
Technical Field
The invention relates to the technical field of centrifugal pumps, in particular to a light vertical multistage centrifugal pump.
Background
The multistage centrifugal pump is formed by combining more than two centrifugal pumps with the same function, specifically, a pressure relief opening of a first stage is communicated with an inlet of a second stage, a pressure relief opening of the second stage is communicated with an inlet of a third stage, and the like, and the two stages of centrifugal pumps are connected in series. The multistage centrifugal pump is mainly suitable for occasions such as water supply, industrial pressurization, industrial liquid conveying, water treatment, irrigation and the like, and has the characteristics of compact structure, small volume, light weight and the like.
The conventional multistage centrifugal pump cannot be automatically adjusted according to the change of the liquid pressure in the pump body, so that the working efficiency of the centrifugal pump is reduced, and the energy loss is increased; on the other hand, long-term use can frequently cause pump shaft fatigue, thereby damaging a motor bearing; in addition, the existing centrifugal pump needs manual water filling and air exhausting before use, if a large enough vacuum degree can not be formed in a shell, liquid can not be sucked up, namely, the phenomenon of air binding occurs, and therefore the light vertical type multistage centrifugal pump is provided for solving the problems
Disclosure of Invention
The invention aims to provide a light vertical multistage centrifugal pump to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a light vertical multistage centrifugal pump comprises a pump body, a coupling mechanism, a motor, an operation mechanism and an air exhaust mechanism, wherein the pump body is arranged on a working plane in the vertical direction; and a water outlet pipeline and a water inlet pipeline are symmetrically arranged in the pump body by using the central axis, one ends of the water outlet pipeline and the water inlet pipeline are respectively communicated with the water pipe and provided with a valve, and the other ends of the water outlet pipeline and the water inlet pipeline are respectively communicated with the operation mechanism.
Further, a cavity is formed in the lower end of the pump body, a plurality of air holes are uniformly formed in the inner side wall of the vertical surface of the pump body, the air holes are communicated with the cavity through an air duct, one end of the air exhaust mechanism is arranged in the cavity, and the other end of the air exhaust mechanism is arranged in the water inlet duct; the pump body is internally provided with a plurality of stages of chambers with the same size, an output shaft in the coupling mechanism is sleeved with a speed change wheel set, and the number of speed change wheels in the speed change wheel set corresponds to the number of the chambers.
Furthermore, the coupling mechanism comprises a coupling seat, a rack, a shaft sleeve and a coupling assembly, the coupling seat is vertically fixed at the top end of the pump body, one end of the rack is fixedly connected with the motor, the other end of the rack is fixedly connected with the coupling seat, the shaft sleeve penetrates through the middle part of the coupling seat in the vertical direction, and the central axis positions of the rack, the coupling seat and the shaft sleeve are all overlapped with the pump body; the coupling assembly is arranged in the rack, one end of the coupling assembly is connected with the output shaft, and the other end of the coupling assembly is connected with the shaft sleeve; the motor is characterized in that a linkage wheel set is connected to one side, located on the inner side wall of the rack, of an output shaft of the motor in a switching mode, the linkage wheel set is meshed with the speed changing wheel set, the number of linkage wheels in the linkage wheel set corresponds to the number of speed changing wheels in the speed changing wheel set, the coupling assembly is arranged inside the rack, one end of the coupling assembly is connected with the linkage wheel set, and the other end of the coupling assembly is connected with the shaft sleeve.
Furthermore, the coupling assembly comprises a coupling bearing, a transmission ring, a deformation rod, a deformation ring, a support rod and an elastic spring, the coupling bearing is sleeved at one end, away from the pump body, of the shaft sleeve, the transmission ring is sleeved at the outer side of the linkage wheel set and is in transmission connection with the linkage wheel set, the deformation rod is symmetrically arranged at two sides of the shaft sleeve along the vertical direction, one end of the deformation rod is movably connected with the transmission ring, the other end of the deformation rod is movably connected with the coupling bearing, the deformation ring is fixedly arranged at one side, away from the pump body, of the coupling bearing, the deformation ring is sleeved at the outer side of the deformation rod, the support rod is arranged in the horizontal direction, one end of the support rod is connected with the deformation rod, the other end of the support rod penetrates through the deformation ring and extends outwards, the elastic spring is sleeved on the support rod, one end of the elastic spring is in surface contact with the support rod, and the other end of the elastic spring is in surface contact with the deformation ring; the deformation ring and the deformation rod are flexible along the vertical direction.
Furthermore, the operation mechanism comprises a pump shaft, impellers, valve assemblies and guide vanes, the pump shaft is arranged in the middle of the pump body in the vertical direction and penetrates through chambers of all levels, the position of the central axis of the pump shaft coincides with that of the pump body, one end of the pump shaft is inserted into the shaft sleeve, the other end of the pump shaft is rotatably connected with the pump body, the impellers are sleeved on the pump shaft through bearings, the impellers are sequentially arranged in the chambers of all levels, the valve assemblies are symmetrically arranged at the lower ends of the impellers, the valve assemblies are connected with the coupling assembly through oil inlet pipelines, the guide vanes are fixedly arranged on the inner side wall of the chambers, and the guide vanes are arranged at equal intervals by taking the impellers as intermediaries; the impeller and the guide vanes are both arranged in a hollow manner; and mechanical seals are arranged at the joints of the impellers and the pump shaft.
Further, the valve member includes dog, activity cavity and T type piece, the dog is the L style of calligraphy, and the stub axle end of dog runs through the lateral wall of cavity and extends to inside the water conservancy diversion leaf with vertical direction, and the major axis end of dog deviates from the stub axle end along the horizontal direction and passes water conservancy diversion leaf, cavity lateral wall in proper order and extend, it is inside that the cavity lateral wall is fixed to locate to the activity cavity, the one end of T type piece sets up with the inside wall laminating of activity cavity, and the other end of T type piece passes the major axis end that activity cavity and dog links to each other.
Furthermore, a through groove is formed in the side wall of the joint of the lower end of the impeller and the cavity, a water guide groove is formed in the inner portion of the short shaft end of the stop block, one end of the through groove corresponds to the water guide groove, and the other end of the through groove is communicated with the impeller.
Further, the air exhaust mechanism comprises a transmission assembly, the transmission assembly comprises a support, a hydrodynamic fan blade, a transmission wheel, a first helical gear and a second helical gear, the support is arranged on the inner side wall of the water inlet pipeline and is attached to the inner side wall of the water inlet pipeline, the hydrodynamic fan blade is rotationally connected to the inside of the support, the transmission wheel is coaxially arranged with the hydrodynamic fan blade, the first helical gear and the second helical gear are respectively rotationally connected to the lower end of the pump body, the first helical gear and the second helical gear are meshed and connected, and the transmission wheel is in transmission connection with the first helical gear through a transmission belt.
The air exhaust mechanism further comprises a lubricating assembly, the lubricating assembly comprises a lubricating sleeve, a pneumatic fan blade and a breathable film, the lubricating sleeve is sleeved on the outer side of the pump shaft and is located between the pump shaft and the bearing, the pneumatic fan blade is arranged right below the pump shaft, the pneumatic fan blade is connected to the inner side wall of the cavity in a switching mode, the breathable film is sleeved at one end, located in the cavity, of the pump shaft, and the breathable film is attached to the bottom end of the lubricating sleeve; the lubricating sleeve is provided with a plurality of through holes, and the through holes are communicated with the bearing; lubricating oil is filled in the lubricating sleeve.
Furthermore, hydraulic oil is filled in the movable cavity and the deformation ring, and the movable cavity is connected with the deformation ring through an oil through pipeline.
Compared with the prior art, the invention has the following beneficial effects: the invention relates to a light vertical multi-stage centrifugal pump,
1. including coupling mechanism, the aim at of setting changes according to the inside liquid pressure of the pump body, carries out automatically regulated to the rotational speed of pump shaft, reduces energy loss, improves work efficiency, can not lead to pump shaft fatigue because of long-term the use simultaneously.
2. The device comprises an operation mechanism, and aims to pressurize and convey liquid by means of centrifugal force action by means of high-speed rotation of an impeller so as to achieve the purpose.
3. The operating mechanism also comprises a valve component which is arranged to send a command to the coupling mechanism through the change of the liquid level in each stage of chamber, so that the coupling mechanism can realize the function, thereby achieving the aim.
4. The air exhaust mechanism comprises a transmission assembly, the purpose of the arrangement is to utilize the flowing action of liquid in the water inlet pipe as driving force, when the liquid is filled with the primary cavity, the gas which is not completely exhausted in the whole pump body is extracted and utilized, and the phenomenon of air binding is prevented from occurring, so that the working efficiency of the centrifugal pump is influenced.
5. The air exhaust mechanism comprises a lubricating component, the purpose of the arrangement is to utilize the flowing characteristic of gas, wherein the gas is specifically gas which is not exhausted in the cavity and bubble gas generated by the friction motion of lubricating oil, so that the lubricating oil can freely move between the bearing and the pump shaft through the through hole in the lubricating sleeve, the lubrication between the bearing and the pump shaft is increased, the friction force is reduced, the operation of the centrifugal pump is more stable, and the noise is less.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall construction of a lightweight vertical multistage centrifugal pump of the present invention;
FIG. 2 is a schematic sectional view showing the internal structure of the pump body of the lightweight vertical multistage centrifugal pump of the present invention;
FIG. 3 is a side elevational schematic view of the coupling assembly of the light-duty vertical multistage centrifugal pump of the present invention;
FIG. 4 is a schematic top view of the coupling assembly of the lightweight vertical multistage centrifugal pump of the present invention;
FIG. 5 is a schematic structural view of the operating mechanism of the light-duty vertical multistage centrifugal pump of the present invention;
FIG. 6 is a schematic structural view of the valve assembly of the lightweight vertical multistage centrifugal pump of the present invention;
FIG. 7 is a schematic structural view of the pumping mechanism of the lightweight vertical multistage centrifugal pump of the present invention;
in the figure: 1. a pump body 101, a cavity 102, a cavity; 2. the device comprises a coupling mechanism 21, a coupling seat 22, a frame 23, a shaft sleeve 24, a coupling component 241, a coupling bearing 242, a transmission ring 243, a deformation rod 244, a support rod 245, an elastic spring 246 and a deformation ring; 3. a motor 31, a speed changing wheel set 32 and a linkage wheel set; 4. the operation mechanism comprises a working mechanism 41, a pump shaft 42, an impeller 43, a valve assembly 431, a stop block 432, a movable cavity 433, a T-shaped block 44, a guide vane 45 and a bearing; 5. the air suction mechanism comprises an air suction mechanism 511, a bracket 512, hydrodynamic fan blades 513, a transmission wheel 514, a first bevel gear 515, a second bevel gear 521, a lubricating sleeve 522, pneumatic fan blades 523 and a breathable film; 6. a water inlet pipe; 7. a water outlet pipeline; 8. a through groove; 9. a water chute; 10. a through hole; 11. and (4) air holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
Referring to fig. 1-7, the present invention provides the following technical solutions: a light vertical multistage centrifugal pump comprises a pump body 1, a coupling mechanism 2, a motor 3, an operation mechanism 4 and an air exhaust mechanism 5, wherein the pump body 1 is arranged on a working plane in the vertical direction, the coupling mechanism 2 is fixedly arranged right above the pump body 1, the motor 3 is arranged at the top end of the coupling mechanism 2, the output end of the motor 3 penetrates through and extends into the coupling mechanism 2, one end of the operation mechanism 4 is connected with the coupling mechanism 2, and the other end of the operation mechanism 4 penetrates through and extends into the pump body 1;
the pump body 1 is internally and symmetrically provided with a water outlet pipeline 7 and a water inlet pipeline 6 by using a central axis, one ends of the water outlet pipeline 7 and the water inlet pipeline 6 are respectively communicated with a water pipe and provided with a valve, and the other ends of the water outlet pipeline 7 and the water inlet pipeline 6 are respectively communicated with the operation mechanism 4.
The lower end of the pump body 1 is provided with a cavity 101, the inner side wall of the vertical surface of the pump body 1 is uniformly provided with a plurality of air holes 11, the air holes 11 are communicated with the cavity 101 through an air duct, one end of the air exhaust mechanism 5 is arranged in the cavity 101, and the other end of the air exhaust mechanism 5 is arranged in the water inlet duct 6;
the pump body 1 is internally provided with a plurality of stages of chambers 102 with the same volume, an output shaft positioned in the coupling mechanism 2 is sleeved with a speed change wheel set 31, and the number of speed change wheels in the speed change wheel set 31 corresponds to the number of the chambers 102.
The coupling mechanism 2 comprises a coupling seat 21, a rack 22, a shaft sleeve 23 and a coupling assembly 24, the coupling seat 21 is vertically fixed at the top end of the pump body 1, one end of the rack 22 is fixedly connected with the motor 3, the other end of the rack 22 is fixedly connected with the coupling seat 21, the shaft sleeve 23 penetrates through the middle part of the coupling seat in the vertical direction, and the central axis positions of the rack 22, the coupling seat 21 and the shaft sleeve 23 are all overlapped with the pump body 1;
the utility model discloses a motor, including frame 22, coupling subassembly 24, shaft sleeve 23, motor 3, coupling subassembly 32, coupling subassembly 24, the one side switching that just is located motor 3 output shaft on the frame 22 inside wall has linkage wheelset 32, linkage wheelset 32 and the meshing of variable speed wheelset 31 meet, and the quantity of linkage wheel corresponds the setting with the quantity of variable speed wheel in the variable speed wheelset 31 in the linkage wheelset 32, the inside frame 22 is located to coupling subassembly 24, and the one end of coupling subassembly 24 links to each other with linkage wheelset 32, and the other end of coupling subassembly 24 links to each other with shaft sleeve 23.
The coupling assembly 24 includes a coupling bearing 241, a transmission ring 242, a deformation rod 243, a deformation ring 246, a support rod 244 and an elastic spring 245, the coupling bearing 241 is sleeved at one end of the shaft sleeve 23 far away from the pump body 1, the transmission ring 242 is sleeved at the outer side of the linkage wheel set 32 and is in transmission connection with the linkage wheel set 32, the deformation rod 243 is arranged at two sides of the shaft sleeve 23 along the vertical direction and symmetrically, one end of the deformation rod 243 is movably connected with the transmission ring 242, the other end of the deformation rod 243 is movably connected with the coupling bearing 241, the deformation ring 246 is fixedly arranged at one side of the coupling bearing 241 far away from the pump body 1, the deformation ring 246 is sleeved at the outer side of the deformation rod 243, the support rod 244 is arranged in the horizontal direction, one end of the support rod 244 is connected with the deformation rod 243, the other end of the support rod 244 passes through the deformation ring 246 and extends outwards, the elastic spring 245 is sleeved on the support rod 244, one end of the elastic spring 245 is in surface contact with the support rod 244, the other end of the elastic spring 245 is in surface contact with the deformation ring 246; the deformation ring 246 and the deformation rod 243 have a telescopic characteristic in the vertical direction.
The operating mechanism 4 comprises a pump shaft 41, an impeller 42, a valve assembly 43 and guide vanes 44, wherein the pump shaft 41 is arranged in the middle of the pump body 1 in the vertical direction and penetrates through each stage of chamber 102, the central axis positions of the pump shaft 41 and the pump body 1 are overlapped, one end of the pump shaft 41 is inserted into the shaft sleeve 23, the other end of the pump shaft 41 is rotatably connected with the pump body 1, the impeller 42 is sleeved on the pump shaft 41 through a bearing 45, the impeller 42 is sequentially arranged in each stage of chamber 102, the valve assembly 43 is symmetrically arranged at the lower end of the impeller 42, the valve assembly 43 is connected with the coupling assembly 24 through an oil pipeline, the guide vanes 44 are fixedly arranged on the inner side wall of the chamber 102, and the guide vanes 44 are arranged at equal intervals by taking the impeller 42 as a medium; the impeller 42 and the guide vane 44 are both arranged in a hollow manner; and the joints of the impellers 42 and the pump shaft 41 are provided with mechanical seals.
The valve assembly 43 comprises a block 431, a movable chamber 432 and a T-shaped block 433, wherein the block 431 is L-shaped, the short shaft end of the block 431 penetrates through the side wall of the chamber 102 in the vertical direction and extends into the guide vane 44, the long shaft end of the block 431 deviates from the short shaft end in the horizontal direction and sequentially penetrates through the guide vane 44 and the side wall of the chamber 102 and extends, the movable chamber 432 is fixedly arranged in the side wall of the chamber 102, one end of the T-shaped block 433 is attached to the inner side wall of the movable chamber 432, and the other end of the T-shaped block 433 penetrates through the movable chamber 432 and is connected with the long shaft end of the block 431.
A through groove 8 is formed in the side wall of the joint of the lower end of the impeller 42 and the chamber 102, a water chute 9 is formed in the short shaft end of the stopper 431, one end of the through groove 8 corresponds to the water chute 9, and the other end of the through groove 8 is communicated with the impeller 42.
The air exhaust mechanism 5 comprises a transmission assembly, the transmission assembly comprises a support 511, a water-driven fan blade 512, a transmission wheel 513, a first bevel gear 514 and a second bevel gear 515, the support 511 is arranged inside the water inlet pipeline 6 and is attached to the inner side wall of the water inlet pipeline 6, the water-driven fan blade 512 is connected inside the support 511 in a switching mode, the transmission wheel 513 and the water-driven fan blade 512 are coaxially arranged, the first bevel gear 514 and the second bevel gear 515 are respectively connected to the lower end of the pump body 1 in a switching mode, the first bevel gear 514 and the second bevel gear 515 are connected in a meshing mode, and the transmission wheel 513 and the first bevel gear 514 are connected in a transmission mode through a transmission belt.
The air pumping mechanism 5 further comprises a lubricating component, the lubricating component comprises a lubricating sleeve 521, pneumatic fan blades 522 and a breathable film 523, the lubricating sleeve 521 is sleeved on the outer side of the pump shaft 41, the lubricating sleeve 521 is located between the pump shaft 41 and the bearing 45, the pneumatic fan blades 522 are arranged right below the pump shaft 41, the pneumatic fan blades 522 are switched on the inner side wall of the cavity 101, the breathable film 523 is sleeved on one end, located in the cavity 101, of the pump shaft 41, and the breathable film 523 is attached to the bottom end of the lubricating sleeve 521;
a plurality of through holes 10 are formed in the lubricating sleeve 521, and the through holes 10 are communicated with the bearing 45; the lubricating sleeve 521 is filled with lubricating oil.
The movable chamber 432 and the deformation ring 246 are filled with hydraulic oil, and the movable chamber 432 and the deformation ring 246 are connected through an oil pipeline.
The working principle of the invention is as follows: 1. connecting the water outlet pipeline 6 and the water inlet pipeline 6 with water pipes respectively, opening a valve, and introducing liquid into the pump body 1 through the water inlet pipeline 6;
2. the power supply is connected, the motor 3 is started, the output shaft of the motor 3 drives the pump shaft 41 to make rotary motion through the coupling mechanism 2, the output shaft of the motor 3 is meshed with the linkage wheel set 32 through the speed changing wheel set 31 to make relative motion, the transmission ring 242 is meshed with the linkage wheel set 32 to drive the deformation rod 243 to make motion, and the deformation rod 243 drives the pump shaft 41 to make rotary motion through the coupling bearing 214;
3. the pump shaft 41 drives the impeller 42 to rotate at a high speed, liquid is thrown to the periphery of the impeller 42 from the center of the impeller 42 along the flow channels among the blades under the action of the centrifugal force of the impeller 42, the pressure and the speed are increased simultaneously due to the action of the blades, the liquid passes through the flow channels of the guide vanes 44 and is guided to the impeller 42 at the next stage, and the liquid flows through all the impellers 42 and the guide vanes 44 successively to further increase the pressure of the liquid;
4. in the process, as the water level in the first-stage chamber 102 continuously rises, the liquid pushes the stopper 431 and the side wall of the chamber 102 to generate relative displacement until the positions of the water chute 9 and the through groove 8 correspond, namely the water path is communicated and is led to the next-stage impeller 42;
meanwhile, the stop 431 drives the T-shaped block 433 and the movable chamber 432 to move relatively, and hydraulic oil in the movable chamber 432 is pushed to enter the deformation ring 246 through the oil through pipe;
5. the deformation ring 246 has the telescopic characteristic due to the filling of hydraulic oil, and is relatively displaced with the coupling bearing 241, so that the deformation ring is in transmission connection with a second-stage linkage wheel in the linkage wheel set 32, when liquid is led to the next-stage impeller 42, the valve assembly 43 in the cavity 102 continuously acts on the coupling assembly 24, namely, the deformation ring 246 is in transmission connection with a third-stage linkage wheel in the linkage wheel set 32, and the like, so that the rotating speed of the pump shaft 41 is improved, the energy loss is reduced, and the working efficiency is improved;
6. when liquid flows in the water inlet pipeline 6, the air exhaust mechanism 5 operates synchronously, the hydrodynamic fan blades 512 rotate along with the flow of the liquid to drive the transmission wheel 513 to move, the transmission wheel 513 drives the first helical gear 514 to move through a transmission belt, the second helical gear 515 is meshed with the first helical gear 514 to move relatively, and the second helical gear 515 drives the pneumatic fan blades 522 to rotate through the transmission belt;
7. the pneumatic fan blade 522 motion leads to the inside pressure variation of cavity 101, through the inside air suction cavity 101 of gas pocket 11 with pump body 1 through vent pipe, simultaneously to inside the gas that produces of lubricating sleeve 521 because of the hydraulic oil friction through ventilated membrane 523 suction cavity 101 inside, make lubricating oil can be through the through-hole 10 free motion between bearing 45 and pump shaft 41 on the lubricating sleeve 521, increase the lubrication between bearing 45 and the pump shaft 41, reduced frictional force, make the centrifugal pump operation more stable, and the noise is littleer.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a light-duty vertical multistage centrifugal pump which characterized in that: the centrifugal pump comprises a pump body (1), a coupling mechanism (2), a motor (3), an operation mechanism (4) and an air exhaust mechanism (5), wherein the pump body (1) is arranged on a working plane in the vertical direction, the coupling mechanism (2) is fixedly arranged right above the pump body (1), the motor (3) is arranged at the top end of the coupling mechanism (2), the output end of the motor (3) penetrates through and extends into the coupling mechanism (2), one end of the operation mechanism (4) is connected with the coupling mechanism (2), and the other end of the operation mechanism (4) penetrates through and extends into the pump body (1);
a water outlet pipeline (7) and a water inlet pipeline (6) are symmetrically arranged in the pump body (1) by a central axis, one ends of the water outlet pipeline (7) and the water inlet pipeline (6) are respectively communicated with a water pipe and provided with a valve, and the other ends of the water outlet pipeline (7) and the water inlet pipeline (6) are respectively communicated with the operation mechanism (4);
the lower end of the pump body (1) is provided with a cavity (101), the inner side wall of the vertical surface of the pump body (1) is uniformly provided with a plurality of air holes (11), the air holes (11) are communicated with the cavity (101) through an air duct, one end of the air exhaust mechanism (5) is arranged in the cavity (101), and the other end of the air exhaust mechanism (5) is arranged in the water inlet duct (6);
a plurality of stages of chambers (102) with the same volume are arranged in the pump body (1), a speed change wheel set (31) is sleeved on an output shaft in the coupling mechanism (2), and the number of speed change wheels in the speed change wheel set (31) corresponds to the number of the chambers (102);
the coupling mechanism (2) comprises a coupling seat (21), a rack (22), a shaft sleeve (23) and a coupling assembly (24), the coupling seat (21) is vertically fixed at the top end of the pump body (1), one end of the rack (22) is fixedly connected with the motor (3), the other end of the rack (22) is fixedly connected with the coupling seat (21), the shaft sleeve (23) penetrates through the middle of the coupling seat in the vertical direction, and the central axis positions of the rack (22), the coupling seat (21) and the shaft sleeve (23) are all overlapped with the pump body (1);
a linkage wheel set (32) is arranged on one side, located on an output shaft of the motor (3), of the inner side wall of the rack (22), the linkage wheel set (32) is meshed with the speed changing wheel set (31), the number of linkage wheels in the linkage wheel set (32) corresponds to the number of speed changing wheels in the speed changing wheel set (31), the coupling assembly (24) is arranged inside the rack (22), one end of the coupling assembly (24) is connected with the linkage wheel set (32), and the other end of the coupling assembly (24) is connected with the shaft sleeve (23);
the coupling assembly (24) comprises a coupling bearing (241), a transmission ring (242), a deformation rod (243), a deformation ring (246), a support rod (244) and an elastic spring (245), the coupling bearing (241) is sleeved at one end, away from the pump body (1), of the shaft sleeve (23), the transmission ring (242) is sleeved at the outer side of the linkage wheel set (32) and is in transmission connection with the linkage wheel set (32), the deformation rod (243) is symmetrically arranged at two sides of the shaft sleeve (23) along the vertical direction, one end of the deformation rod (243) is movably connected with the transmission ring (242), the other end of the deformation rod (243) is movably connected with the coupling bearing (241), the deformation ring (246) is fixedly arranged at one side, away from the pump body (1), of the coupling bearing (241), the outer side of the deformation rod (243) is sleeved with the deformation ring (246), the support rod (244) is arranged in the horizontal direction, one end of the support rod (244) is connected with the deformation rod (243), the other end of the support rod (244) penetrates through the deformation ring (246) and extends outwards, the elastic spring (245) is sleeved on the support rod (244), one end of the elastic spring (245) is in surface contact with the support rod (244), and the other end of the elastic spring (245) is in surface contact with the deformation ring (246); the deformation ring (246) and the deformation rod (243) are telescopic along the vertical direction.
2. A light-duty vertical multistage centrifugal pump according to claim 1, characterized in that: the operating mechanism (4) comprises a pump shaft (41), an impeller (42), a valve assembly (43) and a guide vane (44), the pump shaft (41) is arranged in the middle of the pump body (1) in the vertical direction and penetrates through the chambers (102) at all levels, the pump shaft (41) is superposed with the central axis of the pump body (1), one end of the pump shaft (41) is inserted into the shaft sleeve (23), the other end of the pump shaft (41) is rotatably connected with the pump body (1), the impeller (42) is sleeved on the pump shaft (41) through a bearing (45), the impellers (42) are sequentially arranged in each stage of cavity (102), the valve components (43) are symmetrically arranged at the lower end of the impeller (42), the valve components (43) are connected with the coupling component (24) through oil pipelines, the guide vanes (44) are fixedly arranged on the inner side wall of the chamber (102), and the guide vanes (44) are arranged at equal intervals by taking the impeller (42) as a medium; the impeller (42) and the guide vane (44) are both arranged in a hollow manner; and the joints of the impellers (42) and the pump shaft (41) are provided with mechanical seals.
3. A light-duty vertical multistage centrifugal pump according to claim 2, characterized in that: valve member (43) include dog (431), activity cavity (432) and T type piece (433), dog (431) are the L style of calligraphy, and the minor axis end of dog (431) runs through the lateral wall of cavity (102) with vertical direction and extends to inside water conservancy diversion leaf (44), and the major axis end of dog (431) deviates from the minor axis end along the horizontal direction and passes water conservancy diversion leaf (44), cavity (102) lateral wall and extend in proper order, activity cavity (432) are fixed to be located inside cavity (102) lateral wall, the one end of T type piece (433) sets up with the laminating of the inside wall of activity cavity (432), and the other end of T type piece (433) passes activity cavity (432) and links to each other with the major axis end of dog (431).
4. A light-duty vertical multistage centrifugal pump according to claim 3, characterized in that: the movable cavity (432) and the deformation ring (246) are filled with hydraulic oil, and the movable cavity (432) is connected with the deformation ring (246) through an oil through pipeline.
5. The light-duty vertical multistage centrifugal pump of claim 4, wherein: a through groove (8) is formed in the side wall of the joint of the lower end of the impeller (42) and the cavity (102), a water guide groove (9) is formed in the short shaft end of the stop block (431), one end of the through groove (8) corresponds to the water guide groove (9), and the other end of the through groove (8) is communicated with the impeller (42).
6. A light-duty vertical multistage centrifugal pump according to claim 3, characterized in that: air exhaust mechanism (5) includes drive assembly, drive assembly includes support (511), water driven fan blade (512), drive wheel (513), first helical gear (514) and second helical gear (515), the inside wall setting of intake pipe (6) and laminating intake pipe (6) is located in support (511), water driven fan blade (512) and support (511) inside rotation are connected, drive wheel (513) and water driven fan blade (512) coaxial arrangement, first helical gear (514), second helical gear (515) rotate with the lower extreme of the pump body (1) respectively and are connected, and the meshing meets between first helical gear (514), the second helical gear (515), meet with the transmission belt transmission between drive wheel (513) and first helical gear (514).
7. The light-duty vertical multistage centrifugal pump of claim 6, wherein: the air exhaust mechanism (5) further comprises a lubricating component, the lubricating component comprises a lubricating sleeve (521), a pneumatic fan blade (522) and a breathable film (523), the lubricating sleeve (521) is sleeved on the outer side of the pump shaft (41), the lubricating sleeve (521) is located between the pump shaft (41) and the bearing (45), the pneumatic fan blade (522) is arranged right below the pump shaft (41), the pneumatic fan blade (522) is rotatably connected with the inner side wall of the cavity (101), the breathable film (523) is sleeved on one end, located in the cavity (101), of the pump shaft (41), and the breathable film (523) is attached to the bottom end of the lubricating sleeve (521);
a plurality of through holes (10) are formed in the lubricating sleeve (521), and the through holes (10) are communicated with the bearing (45); the lubricating sleeve (521) is filled with lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110537400.6A CN113266574B (en) | 2021-05-18 | 2021-05-18 | Light vertical multistage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110537400.6A CN113266574B (en) | 2021-05-18 | 2021-05-18 | Light vertical multistage centrifugal pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113266574A CN113266574A (en) | 2021-08-17 |
| CN113266574B true CN113266574B (en) | 2022-03-08 |
Family
ID=77231354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110537400.6A Active CN113266574B (en) | 2021-05-18 | 2021-05-18 | Light vertical multistage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113266574B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638911B (en) * | 2021-10-14 | 2021-12-24 | 江苏凤坡工程机械有限公司 | Vacuum suction device of mining pneumatic dredging dredge pump |
| US20240141900A1 (en) * | 2022-11-01 | 2024-05-02 | CPC Pumps International | Vertically suspended centrifugal pump with integral speed reducer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509503A (en) * | 2009-03-19 | 2009-08-19 | 日立泵制造（无锡）有限公司 | Packing shaft seal structure of improved type vertical pump |
| CN202768420U (en) * | 2012-09-29 | 2013-03-06 | 山东双轮埃姆科泵业有限公司 | Centrifugal pump |
| CN205578288U (en) * | 2016-05-06 | 2016-09-14 | 广东博宇集团有限公司 | Flowing water pump is made in oxygenation |
| CN107869440B (en) * | 2016-09-28 | 2019-11-08 | 比亚迪股份有限公司 | Motor pump assembly, steering system and vehicle |
| CN207813944U (en) * | 2017-12-15 | 2018-09-04 | 上海中航泵业股份有限公司 | A kind of vertical multi-stage centrifugal pump |
| CN209212573U (en) * | 2018-09-19 | 2019-08-06 | 福州紫晶光电科技有限公司 | One kind using magnetic drive pump for cooling water circulation |
| CN109236663A (en) * | 2018-12-06 | 2019-01-18 | 张新丰 | A kind of water pump and its assembly method |
-
2021
- 2021-05-18 CN CN202110537400.6A patent/CN113266574B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113266574A (en) | 2021-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113266574B (en) | Light vertical multistage centrifugal pump | |
| CN108894992B (en) | Water-free starting self-sucking pump | |
| CN111503002B (en) | Variable water pump | |
| CN100590317C (en) | Single stage turbine vacuum pumping machine and method for pumping vacuum by the machine | |
| CN100575710C (en) | A kind of multistage turbine vacuum machine and use the method that it extracts multi-stage vacuum | |
| CN207278537U (en) | A kind of axial-flow pump | |
| CN203394792U (en) | Energy-saving multistage deep well submersible and centrifugal pump | |
| CN108180148A (en) | A kind of anti-backflow water pump convenient for lubricant addition | |
| CN207377796U (en) | A kind of energy-conserving hydraulic pump | |
| CN215486609U (en) | Cooling tower water pump convenient to use | |
| CN205779850U (en) | A kind of water pump of band self-priming water storage function | |
| CN213627990U (en) | Combined internal gear pump of pin vane pump | |
| CN204283874U (en) | Marine gear pump | |
| CN2906142Y (en) | Highly-efficient energy-saving double-gear double-impeller and double-shaft water pump | |
| CN207393491U (en) | The shaftless sewage pump of whirling well automatic control | |
| CN210601784U (en) | Air inlet and exhaust structure for passive house kitchen | |
| CN204921407U (en) | Turbofan dry vacuum pump | |
| CN112502985A (en) | Combined low-cavitation multistage centrifugal pump | |
| CN112253451A (en) | Combined internal gear pump of pin vane pump | |
| CN205001220U (en) | Multistage high -pressure centrifugal compressor | |
| CN214838639U (en) | Miniature one-way throttle valve | |
| CN205401257U (en) | Low noise multistage centrifugal pump | |
| CN2429663Y (en) | Dry airtight sealed long shaft multi-stage underwater pump | |
| CN2138203Y (en) | Axial strength balancing unit of centrifugal pump | |
| CN212958976U (en) | Water pumping device driven by fan shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |