CN109026826B - Noise-reducing self-priming pump - Google Patents
Noise-reducing self-priming pump Download PDFInfo
- Publication number
- CN109026826B CN109026826B CN201811085803.6A CN201811085803A CN109026826B CN 109026826 B CN109026826 B CN 109026826B CN 201811085803 A CN201811085803 A CN 201811085803A CN 109026826 B CN109026826 B CN 109026826B
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- impeller
- ring
- rotating shaft
- chamber
- pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 114
- 239000007788 liquid Substances 0.000 claims abstract description 74
- 230000037452 priming Effects 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 57
- 238000000926 separation method Methods 0.000 claims description 22
- 238000005192 partition Methods 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 14
- 229920001971 elastomer Polymers 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 9
- 239000000872 buffer Substances 0.000 claims description 8
- 230000005855 radiation Effects 0.000 claims description 8
- 229920000459 Nitrile rubber Polymers 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 description 15
- 238000009423 ventilation Methods 0.000 description 10
- 230000006698 induction Effects 0.000 description 7
- 230000002035 prolonged effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 208000012260 Accidental injury Diseases 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
- F04D29/24—Vanes
- F04D29/242—Geometry, shape
-
- 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
- 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
- F04D29/046—Bearings
-
- 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
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Abstract
The invention relates to the field of water pumps, and discloses a noise-reducing self-priming pump which comprises a motor, a pump shell body and a connecting cover body for connecting the motor and the pump shell body, wherein a rotating shaft is arranged in the motor, an impeller is coaxially arranged on the rotating shaft in a clearance fit manner, the impeller is rotationally arranged in the pump shell body, a water pressure balance hole is formed in the impeller, and the water pressure balance hole is communicated with two opposite sides of the axial direction of the impeller; the liquid passes through the water pressure balance hole and makes the hydraulic pressure of the relative both sides of impeller keep the same, when the axial float takes place for the pivot, clearance fit and the holding power of impeller both sides liquid between impeller and the pivot have reduced the float range of the axis direction of impeller, and then have avoided collision and friction between impeller and connecting lid body and the pump case body, have reduced the noise that produces and realize the purpose of protecting the impeller owing to the during operation collision and friction of impeller, have reduced the noise pollution of self priming pump and have promoted the practical life of self priming pump.
Description
Technical Field
The invention relates to the field of water pumps, in particular to a noise-reducing self-priming pump.
Background
A water pump is a mechanical device that delivers or pressurizes a liquid. It transmits mechanical energy or other external energy to the liquid, so that the energy of the liquid is increased, and the flow rate or the liquid pressure of the liquid is improved. The device is mainly used for conveying liquids including water, oil, acid-alkali liquor, emulsion, suspension emulsion, liquid metal and the like.
The existing self-priming pump comprises a motor and a pump body, wherein the motor comprises a shell, a stator and a rotor, wherein the stator and the rotor are arranged in the motor shell, and the rotor comprises a rotating shaft; the pump body comprises a pump shell body and a runner arranged in the pump shell body, the runner comprises a water inlet runner, an impeller chamber and a water storage chamber which are sequentially designed, the impeller is arranged on a rotating shaft and arranged in the impeller chamber, the impeller rotates to increase the flow speed of water in the pump shell, a connecting cover is arranged between the motor and the pump shell, a mechanical sealing chamber and a bearing chamber are arranged in the connecting cover, a rotating shaft of the motor sequentially penetrates through the bearing chamber and the mechanical sealing chamber, the connecting cover blocks water flow from entering the motor and ensures stable rotation of the rotating shaft to drive the impeller, and stable driving water flow of the impeller accelerates and pressurizes in the runner.
In the above-mentioned disclosed technology, because the processing of connecting cover periphery circle, mechanical seal room and bearing room all must adopt step-by-step processing, there is unavoidable error between the benchmark that causes the three to process, and be provided with the rotor in the pivot and with there is the cooperation between the stator in the motor, also can exist the deviation between the center of rotation of rotor theory and the center of bearing room, during motor operation, cause the pivot atress to take place axial float, and then make the epaxial impeller of being fixed in take place the float, and the space in impeller room is less just can effectual promotion rivers, so the float of impeller makes the impeller take place mechanical friction between connecting cover and the pump case body, cause great noise pollution and cause the damage of impeller easily, the life of self priming pump has been reduced, there is the shortcoming of waiting to improve.
Disclosure of Invention
The invention aims to provide a noise-reducing self-priming pump, wherein an impeller is in clearance fit with a rotating shaft, and is enabled to float along the axial direction of the rotating shaft through hydraulic pressure, so that mechanical friction caused by the movement of the impeller is reduced, pollution caused by the self-priming pump is further reduced, and the service life of the self-priming pump is prolonged.
The technical aim of the invention is realized by the following technical scheme:
the utility model provides a self priming pump of making an uproar falls, includes motor, pump case body and is used for connecting the connection lid body of motor and pump case body, be provided with the pivot in the motor, coaxial clearance fit is provided with the impeller in the pivot, just the impeller rotates to set up in the pump case body, the water pressure balance hole has been seted up on the impeller, just water pressure balance hole intercommunication impeller axial relative both sides.
Through adopting above-mentioned technical scheme, clearance fit between impeller and the pivot in the pump case body, and circumference interval is provided with the water pressure balance hole on the impeller, water pressure balance hole intercommunication impeller axial opposite sides, the hydraulic pressure that the liquid passes through water pressure balance hole makes the impeller opposite sides keeps the same, when the axial float takes place for the pivot, clearance fit between impeller and the pivot and the holding power of impeller both sides liquid, the play range of the axis direction of impeller has been reduced, and then collision and friction between impeller and connecting lid body and the pump case body have been avoided, noise because the during operation collision of impeller and friction produce is reduced and the purpose of realizing protecting the impeller has been reduced the noise pollution of self priming pump and has promoted the practical life of self priming pump.
The invention is further provided with: the two opposite sides of the impeller are symmetrically provided with protective pieces, and the protective plates are made of anti-corrosion materials; the guard piece includes the guard plate that is on a parallel with the impeller and is provided with the inlay ring with pivot coaxial.
Through adopting above-mentioned technical scheme, the guard plate adopts stainless steel preparation, and the guard piece includes the guard plate that is on a parallel with the impeller and is provided with coaxially with the pivot and inlay and establish the ring, the inlays of impeller both sides guard piece establish respectively in inlaying the mechanical seal room and in the impeller room, the guard plate has avoided the impeller to collide between connecting lid body and the pump case body, and then try down the purpose of protection impeller, and avoid connecting lid body and pump case body to rust the rotation that produces towards impeller one end respectively and influence the impeller, promote impeller rotation stability.
The invention is further provided with: the matching end of the rotating shaft and the impeller is provided with matching planes at equal intervals around the axial circumference of the rotating shaft and the impeller, and the impeller is provided with a splicing groove matched with the rotating shaft.
Through adopting above-mentioned technical scheme, the cooperation plane that upwards equidistant setting in the pivot for the focus and the axle center coincidence of pivot, and behind impeller and pivot complex jack groove were seted up, the focus of impeller was same rather than center of rotation coincidence, has reduced the eccentric force that receives when impeller rotates, promotes impeller pivoted stability, and then reduces the noise that produces in the impeller high-speed rotation.
The invention is further provided with: the impeller is characterized in that a first drainage groove and a second drainage groove are formed in two axial sides of the impeller at equal intervals in the circumferential direction respectively, a first push plate is formed between the first drainage grooves, a second push plate is formed between the second drainage grooves, and the first push plate and the second push plate are alternately distributed on two sides of the impeller at equal intervals.
Through adopting above-mentioned technical scheme, form push pedal one between the water drainage tank one, form push pedal two between the water drainage tank two, alternately and equidistant between push pedal one and the push pedal two are in the both sides of impeller, and liquid flows to in water drainage tank one and the water drainage tank two, and when impeller rotates, push pedal one and push pedal two promote liquid flow, promote the velocity of flow of liquid to the alternate interval setting of push pedal one and push pedal two increases the intensity of impeller periphery, and then promotes impeller's life.
The invention is further provided with: the connecting cover is characterized in that a bearing chamber is arranged in the connecting cover body, a buffer ring groove is coaxially formed in the inner wall of the bearing chamber, an elastic ring is embedded in the buffer ring groove, a bearing matched with a rotating shaft in the motor is arranged in the bearing chamber in a clearance fit mode, and the elastic ring is elastically abutted to the bearing.
Through adopting above-mentioned technical scheme, when the motor works, the epaxial rotor of pivot moves to the best center of rotation in the magnetic field of stator in the motor, and then makes the atress of pivot skew axis direction, and the pivot promotes the bearing to one side, takes place to extrude between bearing and the elastic ring, and the elastic ring has certain elastic deformation, and then realizes the skew of pivot, avoids the unilateral extrusion to take place between bearing and the bearing chamber inner wall to accelerate the damage of bearing, and then has promoted the life of bearing and motor; and the deviation between the center of the rotating shaft and the center of the magnetic field of the rotor in the stator is reduced, the component force of the rotating shaft in the axial direction is reduced, the movement of the rotating shaft in the axial direction and the noise of mechanical friction are further reduced, and the noise pollution during the operation of the self-priming pump is further reduced.
The invention is further provided with: the connecting cover is characterized in that a mechanical sealing chamber is further arranged in the connecting cover body, a sealing assembly is arranged in the mechanical sealing chamber, the sealing assembly comprises a sealing rubber ring, a wear-resistant ring and a lubricating ring which are coaxially sleeved on a rotating shaft in sequence, the sealing rubber ring extends along an axis to form an abutting ring, one end of the wear-resistant ring is embedded in the abutting ring, and the outer periphery of the abutting ring abuts against the inner side of the mechanical sealing chamber.
Through adopting above-mentioned technical scheme, the butt ring has certain elastic force for when the pivot takes place radial movement, the butt ring can produce certain deformation, reduces the axis of pivot and the magnetic field center deviation of rotor in the stator, promotes the rotation stability of pivot, has reduced the drunkenness of pivot in the axis direction and the noise of the mechanical friction of production, further reduces the noise pollution of self priming pump during operation.
The invention is further provided with: the sealing rubber ring is made of nitrile rubber, a water inlet hole is formed in the connecting cover body, which is close to one end of the pump shell body and is located at the communication position of the impeller chamber and the water storage chamber, a water outlet hole is formed in the connecting cover body and is located on the inner wall of the mechanical sealing chamber, and a communication groove is formed by the water inlet hole and the water outlet hole.
By adopting the technical scheme, the sealing rubber ring is made of nitrile rubber, the nitrile rubber is heated and reduced, and the liquid in the impeller chamber drives the heat in the sealing assembly, so that the stability of the sealing rubber ring is ensured, and the tightness and the service life of the sealing assembly are further ensured.
The invention is further provided with: the motor comprises a shell and a heat radiation structure arranged on the shell, the heat radiation structure comprises a heat radiation disc arranged on one end of the rotating shaft away from the impeller and blades, the blades are circumferentially arranged on one side of the heat radiation disc away from the motor at intervals, and the blades are bent to form a concave cambered surface for pushing air and a convex cambered surface for guiding air to flow.
Through adopting above-mentioned technical scheme, the crooked concave cambered surface that forms the promotion air of setting of blade and the protruding cambered surface of guide air flow, when the cooling plate rotates, the concave cambered surface has increased the area that promotes the air flow for the flow of air increases, and protruding cambered surface reduces the windage, and then has reduced the blade and has rotated the in-process and the noise that the cutting produced between the air, reduces the noise pollution that the self priming pump during operation produced.
The invention is further provided with: the heat dissipation disk is including being used for the cover to establish the cover ring of cooperation pivot and along the radial extension's of pivot rolling disc, cover the ring and extend to the direction of keeping away from the pivot, blade one side is fixed in on the rolling disc, just be provided with connecting portion between blade and the cover ring outside, the junction of cover ring and rolling disc is provided with first arcwall face, the outward flange of rolling disc is provided with the second arcwall face that is used for guiding air to the motor flow.
By adopting the technical scheme, one side of the blade is fixed on the rotating disc, and the connecting part is arranged between the blade and the outer side of the sleeve joint ring, so that the connecting strength between the blade and the radiating fin is increased by the connecting part, and the blade can stably push air to flow; and be provided with first arcwall face in the junction of cup joint ring and rolling disc, the outward flange of rolling disc is provided with the second arcwall face that is used for guiding the air to the motor flow, and when the air centrifugal movement, first arcwall face and second arcwall face have all reduced the windage, reduce the noise that the air flow in-process produced, reduce the noise pollution that the self priming pump during operation produced.
The invention is further provided with: the one end that the pivot was kept away from to the blade extends there is the extension board, just the extension board sets up with the blade bending direction the same, the length of extension board with interval between ventilation board and the rolling disc is the same.
Through adopting above-mentioned technical scheme, the safety cover has avoided cooling plate and blade to expose and has caused the accidental injury operating personnel, and ventilation board on the safety cover can guarantee the transportation of air to the cooling plate, and then guarantee to realize the steady cooling effect to the motor, and wherein the blade is kept away from the one end extension of pivot and has the extension board, and extension board and the same setting of blade crooked direction, the extension board increases the area that promotes the air flow, improve the air circulation, and then promote the cooling efficiency to the motor, and the length of extension board is the same with the interval between ventilation board and the rolling disc, make the air flow that sends into in the ventilation keep consistent with the air flow of output, and then realize stable cooling to the motor, and the equivalent input and the output of air avoid producing great windage, and then reduce the noise that the air flow produced, reduce the noise pollution that the self priming pump during operation produced.
In summary, the invention has the following beneficial effects:
1. the hydraulic balance holes enable the two sides of the impeller to be in liquid communication, so that the hydraulic communication of the two sides of the impeller is further ensured, the phenomenon that the difference value of the hydraulic pressure of the two sides of the impeller fluctuates to cause the movement of the impeller is avoided, the impeller and the rotating shaft are in clearance fit, so that the impeller and the rotating shaft can move relatively along the axial direction, the impeller is supported through the hydraulic pressure, the movement of the impeller driven by the rotating shaft is further avoided, the mechanical friction caused by the movement of the impeller is further reduced, the noise pollution generated during the operation of the self-priming pump is greatly reduced, and the service life of the self-priming pump is prolonged;
2. the elastic support of the elastic ring to the bearing in the bearing chamber and the elastic support of the sealing rubber ring to the rotating shaft enable the rotating shaft to move radially to a certain extent when the motor works, the deviation between the axis of the rotating shaft and the center of the magnetic field of the rotor in the stator is reduced, the rotation stability of the rotating shaft is improved, the movement of the rotating shaft in the axis direction is reduced, meanwhile, the mechanical friction caused by the movement of the impeller and the radiating disc is reduced, and the noise pollution generated when the self-priming pump works is further reduced.
Drawings
FIG. 1 is a schematic diagram of the general assembly structure of a noise reducing self priming pump;
FIG. 2 is an exploded schematic view of a heat dissipating mechanism for embodying a liquid acceleration structure;
FIG. 3 is a schematic view in semi-section of a pump body construction;
FIG. 4 is an exploded schematic view for embodying a water flow check valve structure;
FIG. 5 is a schematic diagram for embodying the structure of the connecting cover body;
FIG. 6 is a schematic view in semi-section for embodying mounting structure in the connecting cap body;
FIG. 7 is an exploded schematic view for embodying an impeller mounting structure
FIG. 8 is a schematic diagram for embodying a heat dissipating structure;
fig. 9 is a schematic diagram for embodying a reinforcing portion of a heat dissipating structure.
Reference numerals: A. a motor; a1, a shell; a11, radiating fins; a2, a rotating shaft; a21, a matching plane; a3, a heat dissipation structure; a4, a heat dissipation plate; a41, sleeving a ring; a42, rotating a disc; a43, reinforcing plate; a44, a first arc-shaped surface; a45, a second arc surface; a5, a blade; a51, a connecting part; a52, concave cambered surface; a53, a convex cambered surface; a54, lengthening plates; a6, protecting the cover; a61, connecting plates; a62, a ventilation board; a621, an air inlet hole;
B. a pump body; b1, a pump shell body; b11, a tongue plate; b111, a gas-water separation tank; b112, arc chamfering; b113, guiding slope; b14, a main partition board; b2, a water inlet flow channel; b21, front runner; b22, a back runner; b3, an impeller chamber; b31, a pressurizing water inlet; b32, a pressurized water outlet; b4, a gas-water separation chamber; b5, separating plate; b6, a water flow one-way valve; b7, fixing the valve core; b8, an upper valve body; b81, mounting part; b82, a guide post; b821 and positioning ribs; b83, a threaded ring; b84, magnetic induction switch; b9, a lower valve body; b91, a slideway part; b911 and a water outlet; b92, an embedding part; b921, first sealing surface; b922, communication port; b923, a first sealing ring; b10, sliding the valve core; b101, a second sealing surface; b102, a guide groove; b103, positioning grooves; b104, a magnet; b105, a drain port; b106, a second sealing ring; b107, a fixed ring; b108, balancing weight; b11, clamping the ring; b12, supporting springs; b13, a second connecting angle; b14, a third sealing ring;
C. a connecting cover body; c1, a mechanical seal chamber; c2, a bearing chamber; c21, buffer ring groove; c22, an elastic ring; c3, a water inlet hole; c4, water outlet holes; c5, a communicating groove; c51, drainage surface; c6, a high-pressure water storage tank; c7, a low-pressure drainage tank; c8, a partition board; c9, a flow channel; c10, a clamping groove; c101, a third sealing surface; c11, a first connection angle; c12, adjusting the gap; c13, a bearing; c14, a sealing assembly; c141, sealing rubber ring; c142, an abutment ring; c143, wear ring; c144, lubrication ring;
D. an impeller; d1, a water pressure balance hole; d2, a guard; d21, a protection plate; d22, embedding a ring; d3, a drainage tank I; d31, push plate one; d4, a drainage tank II; d41, push plate two.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a noise-reducing self-priming pump includes a motor a, a pump body B, and a connecting cover body C for connecting the two. The motor A comprises a shell A1 and a rotating shaft A2 arranged in the shell A1, the pump body B comprises a pump body B1 and an impeller D which is rotationally arranged in the pump body B1, a pressurizing flow channel for increasing the flow rate of liquid is arranged in the pump body B1, the shell A1 is fixedly connected with the pump body B1 by a connecting cover body C, the rotating shaft A2 is coaxially sleeved with the impeller D, the motor A is started, the rotating shaft A2 drives the impeller D to rotate, and the impeller D pushes liquid in the pump body B1, so that the liquid lift in the pump body B is increased.
As shown in fig. 3 and 4, the pressurizing flow path in the pump housing body B1 includes a water inlet flow path B2, an impeller chamber B3, and a gas-water separation chamber B4 through which the liquid passes in order. A main partition plate B14 is arranged in the pump shell body B1 and between the water inlet flow passage B2 and the gas-water separation chamber B4, a pressurizing water inlet B31 communicated with the water inlet flow passage B2 and the impeller chamber B3 and a pressurizing water outlet B32 communicated with the impeller chamber B3 and the gas-water separation chamber B4 are respectively formed on two sides of the main partition plate close to the impeller chamber B3 by the main partition plate B14, a tongue plate B11 extends towards the main partition plate B14 on the pump shell body B1 and at the pressurizing water outlet B32, a gas-water separation groove B111 is formed on the tongue plate B11, the gas-water separation groove B111 is communicated with the gas-water separation chamber B4 and the impeller chamber B3, liquid enters the impeller chamber B3 from the water inlet flow passage B2, wherein the gas in the liquid is accumulated at the tongue plate B11 and enters the gas-water separation chamber B4 through the gas-water separation groove B111, the liquid flows to the pressurizing water outlet B32 and enters the gas-water separation chamber B4, the purpose of gas-liquid separation is realized, the density of the gas-liquid is prevented from occupying the pressurizing water outlet B32, the stability of the liquid passing through the pressurizing water outlet B32 is improved, and the purpose of raising the liquid lift is realized.
As shown in fig. 3 and fig. 4, the side of the tongue plate B11 facing the impeller chamber B3 is provided with an arc shape, so that the resistance of liquid flowing in the impeller chamber B3 is reduced, and further, the noise generated by friction during the flowing of the liquid is reduced, the gas-water separation tank B111 is arranged along the radial extension of the impeller chamber B3 along the impeller D, the centrifugal force is applied during the flowing process of the gas, the direction of the centrifugal force is consistent with the extension direction of the gas-water separation tank B111, and further, the smoothness of the gas passing through the gas-water separation tank B111 is improved, the noise generated by bursting after the gas is accumulated in the impeller chamber B3 is reduced, and an arc chamfer B112 is arranged at one end of the gas-water separation tank B111 close to the impeller chamber B3, when the gas passes through the gas-water separation tank B111, the bursting of bubbles formed by the gas is reduced, and the generation of the noise is further reduced; and a guiding inclined plane B113 is arranged in parallel at one end of the tongue plate B11 facing the main partition plate B14, the guiding inclined plane B113 faces the impeller chamber B3, when the liquid flows to the pressurized water outlet B32, the guiding inclined plane B113 increases the passing flow rate of the liquid, and reduces the cutting force between the tongue plate B11 and the liquid, thereby reducing the noise generated when the liquid passes through the pressurized water outlet B32.
As shown in fig. 3 and fig. 4, a partition plate B5 is disposed in the pump housing body B1 and in the water inlet channel B2, the partition plate B5 partitions the water inlet channel B2 into a front channel B21 and a rear channel B22, a water flow check valve B6 is disposed on the partition plate B5, after the hydraulic pressure difference between the front channel B21 and the rear channel B22 reaches a certain difference, the liquid in the front channel B21 is sent into the rear channel B22 in a unidirectional manner through the water flow and enters the gas-water separation chamber B4 through the impeller chamber B3, so as to achieve the purpose of accelerating the liquid, but when the front channel B21 is lower than the hydraulic pressure in the rear channel B22, the water flow check valve B6 blocks the liquid from flowing backwards in the rear channel B22, thereby avoiding the impeller D from being damaged and generating noise caused by the large resistance generated by the steering of the impeller D and the opposite liquid flow direction.
As shown in fig. 3 and 4, the water flow check valve B6 includes a fixed valve core B7 and a sliding valve core B10, the fixed valve core B7 is fixed between the pump housing body B1 and the partition plate B5 and is communicated with the front flow channel B21 and the rear flow channel B22, the sliding valve core B10 is slidably disposed in the fixed valve core B7, and the opening and closing of the communication port B922 in the fixed valve core B7, which is communicated with the front flow channel B21 and the rear flow channel B22, is realized by the movement of the sliding valve core B10.
As shown in fig. 3 and 4, the fixed valve core B7 includes an upper valve body B8 fixed to the pump housing body B1 and a lower valve body B9 fixed to the partition plate B5, the lower valve body B9 includes an embedded portion B92 embedded in the partition plate B5 and a slide path portion B91 for defining a moving direction of the sliding valve core B10, an upper end of the slide path portion B91 abuts against a lower end of the upper valve body B8, the upper valve body B8 abuts against the pressing slide path portion B91, the embedded portion B92 is stably fixed to the partition plate B5, a first sealing surface B921 abutting against the partition plate B5 is provided at a lower end of the slide path portion B91, wherein the communication port B922 is opened in the embedded portion B92 so that liquid can enter the slide path portion B91 only through the communication port B922, a second sealing surface B101 abutting against the embedded portion B92 for sealing the communication port B922 is provided at a lower end of the slide path portion B10, and a water outlet B911 communicating with the rear flow path B22 is provided on a side wall of the slide path portion B91; when the hydraulic pressure in the front flow passage B21 is high, the liquid in the front flow passage B21 pushes the sliding valve core B10 through the communication port B922 and enters the rear flow passage B22 from the water outlet B911; when the hydraulic pressure in the front flow passage B21 is lower, the sliding valve core B10 is abutted against the embedded part B92 to block the liquid in the rear flow passage B22 from passing, so that the purpose of controlling the unidirectional flow of the liquid is realized.
As shown in fig. 3 and 4, the upper valve body B8 includes a mounting portion B81 connected to the pump housing body B1 and a guide post B82 extending from the lower end of the fixing portion, the mounting portion B81 includes a hand-held portion located outside the pump body B and a threaded ring B83 screwed to the pump body B, a third seal ring B14 is sleeved on the periphery of the threaded ring B83 and abuts against the lower end of the mounting portion B81, the mounting portion B81 is rotated, and the mounting portion B81 is stably abutted against and fixed to the lower valve body B9; the guide post B82 adopts a quadrangular prism shape, a guide groove B102 matched with the guide post B82 is formed in the sliding valve core B10, a magnetic induction switch B84 for controlling the starting and stopping of the motor A is arranged in the guide post B82, a magnet B104 is embedded at the upper end of the sliding valve core B10, when the hydraulic pressure in the current flow passage B21 is large, the sliding valve core B10 is pushed to move upwards, the magnet B104 is close to enable the magnetic induction switch B84 to be closed, and the motor A is started to drive the impeller D to rotate, so that the automatic working of the self-priming pump is realized; and be provided with the locating rib B821 on guide post B82, the locating rib B821 extends along the length direction of guide post B82 and sets up, has offered on slide valve core B10 and has pegged graft complex constant head tank B103 with locating rib B821, and then limited the cooperation position between guide post B82 and the constant head tank B102, and then guarantee that magnet B104 can stable control magnetic induction switch B84's start-stop.
And a drain hole B105 communicated with the positioning groove B103 is formed in the lower end of the sliding valve core B10, when the liquid in the current flow channel B21 pushes the sliding valve core B10, the insertion depth of the guide post B82 in the positioning groove B103 is increased, the gap between the guide post B82 and the positioning groove B103 is smaller, the liquid in the positioning groove B103 flows out through the drain hole B105, the stable movement of the sliding valve core B10 is realized, scale deposit easily occurs in the positioning groove B103 due to the magnetism of the magnet B104, the guide post B82 pushes the scale deposit to move towards the drain hole B105, the liquid takes away the scale deposit, the moving distance of the sliding valve core B10 is prevented from being influenced by the scale deposit in the positioning groove B103, and the starting and stopping of the control motor A are realized by cooperation between the magnet B104 and the magnetic induction switch B84.
As shown in fig. 3 and 4, a clamping ring B11 extends from the upper end of a slide way part B91 in the lower valve body B9, and the outer side of the clamping ring B11 is abutted against the inner side of a threaded ring B83, so that the upper valve body B8 and the lower valve body B9 are stably abutted and fixed; the first sealing ring B923 is sleeved outside the embedded part B92, and the upper valve body B8 pushes the lower valve body B9, so that the first sealing surface B921 extrudes the first sealing ring B923 to be abutted on the partition plate B5, and the tightness of the first sealing surface B921 is improved; still be provided with supporting spring B12 in slide portion B91, supporting spring B12 one end cover is located on guide post B82, the other end butt is in slip case B10 for slip case B10 stable butt is in inlaying portion B92, and it has solid fixed ring B107 to extend at slip case B10's lower extreme, gu inlay in fixed ring B107 and be equipped with balancing weight B108, through setting up balancing weight B108 of different weight, realize controlling the liquid of different hydraulic pressures in the preceding runner B21 and pass through rivers check valve B6, and be equipped with second sealing washer B106 at gu fixed ring B107 overcoat, second sealing washer B101 extrudees second sealing washer B106 butt and inlays portion B92, the leakproofness of second sealing face B101 has been promoted.
As shown in fig. 5 and 6, the connecting cover body C fixedly connects the casing A1 of the motor a with the pump casing body B1, a mechanical seal chamber C1 and a bearing chamber C2 are provided on the connecting cover body C, and a rotating shaft A2 in the motor a sequentially passes through the bearing chamber C2 and the mechanical seal chamber C1 and is coaxially matched with the impeller D in the pump casing body B1.
As shown in fig. 5 and 6, a water inlet hole C3 is formed at one end of the connecting cover body C facing the pump shell body B1 and located at the pressurized water outlet B32, a water outlet hole C4 is formed on the connecting cover body C and located on the inner wall of the mechanical seal chamber C1, a communication groove C5 is formed between the water inlet hole C3 and the water outlet hole C4, when the impeller D rotates and works, the water pressure at the pressurized water inlet hole C3 is lower than the water pressure at the pressurized water outlet B32, so that part of the liquid in the impeller chamber B3 enters the mechanical seal chamber C1 through the water inlet hole C3 and the water outlet hole C4, a seal assembly C14 is arranged in the mechanical seal chamber C1, after heat exchange between the liquid and the seal assembly C14, the liquid flows to the pressurized water inlet B31 from the gap between the mechanical seal chamber C1 and the seal assembly C14, heat in the seal assembly C14 is continuously taken away, and the service life of the seal assembly C14 is prolonged; and wherein the inner wall of intercommunication groove C5 and inlet port C3 are provided with the drainage face C51 that guide liquid to keeping away from pump case body B1 and flow, and the liquid flows to along the stable impact seal assembly C14 behind the drainage face C51 through apopore C4 in the inlet port C3, promotes the stability of liquid to seal assembly C14 cooling down.
As shown in fig. 5 and 6, a high-pressure water storage tank C6 is arranged on the connecting cover body C and positioned at the water inlet hole C3, the high-pressure water storage tank C6 increases the flow rate of the liquid at the water inlet hole C3, and buffers the flow rate of the liquid so that the liquid can stably enter the mechanical seal chamber C1 through the water inlet hole C3, thereby improving the cooling stability of the seal assembly C14; the low-pressure drainage groove C7 is formed in the connecting cover body C and is positioned at the communication position of the water inlet flow passage B2 and the impeller chamber B3, the partition plate C8 is formed on the connecting cover body C and is positioned between the low-pressure drainage groove C7 and the high-pressure water storage groove C6, the pressure of liquid flowing into the low-pressure drainage groove C7 directly from the high-pressure water storage groove C6 is increased by the partition plate C8, the liquid stably passes through the mechanical seal chamber C1, the liquid flow rate is increased by the low-pressure drainage groove C7, the liquid stably flows out of the mechanical seal chamber C1 after heat exchange, accumulation in the mechanical seal chamber C1 is avoided, the liquid in the high-pressure water storage groove C6 can stably enter the mechanical seal chamber C1, and the temperature of the seal assembly C14 is continuously reduced; and the one end of connecting cover body C towards pump case body B1 is offered and is used for the low pressure water drainage tank C7 and high pressure catch bowl C6's circulation groove C9, mixes between the liquid in through circulation groove C9 and impeller room B3, and the high pressure catch bowl C6 is flowed again to the liquid that carries out the heat transfer, has promoted the smoothness nature of liquid flow.
As shown in fig. 5 and 6, a clamping groove C10 is formed in one end, facing the pump shell body B1, of the connecting cover body C, and a third sealing surface C101 which is in contact with the pump shell body B1 is formed on the connecting cover body C and located at the clamping groove C10, so that the sealing stability between the connecting cover body C and the pump shell body B1 is further improved; and still including the first connection angle C11 that circumference interval was provided with at connecting lid body C, circumference interval is provided with on the pump case body B1 with first connection angle C11 relative second connection angle B13, be provided with locking bolt and locking nut between first connection angle C11 and the second connection angle B13, locking bolt passes first connection angle C11 and second connection angle B13 and cooperates locking nut to realize the fixed connection between connecting lid body C and the pump case body B1, and be provided with adjustment clearance C12 between the relative face between first connection angle C11 and second connection angle B13 for when connecting between lid body C and the pump case body B1 is fixed, third sealing face C101 preferentially with pump case body B1 butt, has promoted the sealing stability between connecting lid body C and the pump case body B1.
As shown in fig. 5 and 6, a buffer ring groove C21 is coaxially formed in the inner wall of a bearing chamber C2 of the connecting cover body C, an elastic ring C22 is embedded in the buffer ring groove C21, a bearing C13 is arranged in the bearing chamber C2 in a clearance fit manner, a rotating shaft A2 in the motor a is coaxially inserted into the bearing C13, and the bearing C13 is abutted against the elastic ring C22; when the motor A works, a rotor on the rotating shaft A2 moves to the optimal rotation center in a magnetic field of a stator in the motor A, so that the rotating shaft A2 is stressed in a direction deviating from an axis, the rotating shaft A2 pushes the bearing C13 to one side, extrusion occurs between the bearing C13 and the elastic ring C22, the elastic ring C22 has certain elastic deformation, the deflection of the rotating shaft A2 is further realized, the single side between the bearing C13 and the inner wall of the bearing chamber C2 is prevented from being damaged by extrusion acceleration of the bearing C13, and the service life of the bearing C13 and the motor A is further prolonged; and the deviation between the center of the rotating shaft A2 and the center of the magnetic field of the rotor in the stator is reduced, the component force of the rotating shaft A2 in the axial direction is reduced, the movement of the rotating shaft A2 in the axial direction and the noise of mechanical friction are further reduced, and the noise pollution during the operation of the self-priming pump is further reduced.
The sealing component C14 in the mechanical sealing chamber C1 comprises a sealing rubber ring C141, a wear-resistant ring C143 and a lubricating ring C144 which are sequentially sleeved on the rotating shaft A2 in a coaxial manner, in the embodiment, the wear-resistant ring C143 is made of ceramic, the lubricating ring C144 is made of graphite, the sealing rubber ring C141 extends along the axis to form an abutting ring C142, one end of the wear-resistant ring C143 is embedded in the abutting ring C142, the outer circumferential side of the abutting ring C142 abuts against the inner side of the mechanical sealing chamber C1, the abutting ring C142 has a certain elastic force, so that when the rotating shaft A2 moves radially, the abutting ring C142 can generate a certain deformation, the deviation between the axis of the rotating shaft A2 and the magnetic field center of the rotor in the stator is reduced, the rotation stability of the rotating shaft A2 is improved, the movement of the rotating shaft A2 in the axis direction and the noise of generated mechanical friction are reduced, and the noise pollution caused when the self-sucking pump works is further reduced; and the sealing rubber ring C141 adopts nitrile rubber, the nitrile rubber is heated and reduced, and the liquid in the impeller chamber B3 drives the heat in the sealing component C14, so that the stability of the sealing rubber ring C141 is ensured, and the tightness and the service life of the sealing component C14 are further ensured.
As shown in fig. 6 and 7, clearance fit is provided between the impeller D and the rotating shaft A2 in the pump casing body B1, and water pressure balance holes D1 are circumferentially arranged on the impeller D at intervals, the water pressure balance holes D1 are communicated with two opposite sides of the impeller D in the axial direction, the liquid keeps the same with the hydraulic pressures on the two opposite sides of the impeller D through the water pressure balance holes D1, when the rotating shaft A2 axially moves, clearance fit between the impeller D and the rotating shaft A2 and the supporting force of the liquid on the two sides of the impeller D reduce the moving amplitude of the impeller D in the axial direction, so that collision and friction between the impeller D and the connecting cover body C and the pump casing body B1 are avoided, noise generated due to collision and friction during operation of the impeller D is reduced, the purpose of protecting the impeller D is realized, noise pollution of a self-priming pump is reduced, and the practical life of the self-priming pump is prolonged.
And be provided with guard D2 in impeller D's relative both sides, guard D21 adopts stainless steel to make, and guard D2 is including being on a parallel with impeller D's guard D21 and being provided with coaxially with pivot A2 and inlay and establish ring D22, impeller D both sides guard D2 inlay and establish ring D22 and inlay respectively and locate in the mechanical seal room C1 and in impeller room B3, guard D21 has avoided impeller D to collide with connecting cover body C and pump case body B1, and then try down the purpose of protecting impeller D, and avoid connecting cover body C and pump case body B1 to influence impeller D's rotation towards the oxide that impeller D one end rust produced respectively, promote impeller D rotation stability.
As shown in fig. 6 and 7, the matching end of the rotating shaft A2 and the impeller D are circumferentially provided with a matching plane a21 at equal intervals, two axial sides of the impeller D are circumferentially provided with a first drainage groove D3 and a second drainage groove D4 at equal intervals respectively, a first push plate D31 is formed between the first drainage grooves D3, a second push plate D41 is formed between the second drainage grooves D4, the first push plate D31 and the second push plate D41 are alternately distributed at equal intervals on two sides of the impeller D, liquid flows into the first drainage grooves D3 and the second drainage grooves D4, when the impeller D rotates, the first push plate D31 and the second push plate D41 push the liquid to flow, the flow speed of the liquid is improved, and the strength of the periphery of the impeller D is increased due to the alternate interval arrangement of the first push plate D31 and the second push plate D41, so that the service life of the impeller D is prolonged.
As shown in fig. 8 and 9, a large amount of heat can be generated in a casing A1 during the operation of a motor a, a heat dissipation structure A3 is arranged on the motor a, heat dissipation fins a11 are circumferentially arranged at intervals on the periphery of the casing A1, the heat dissipation structure A3 comprises a heat dissipation disc A4 rotationally arranged on a rotating shaft A2 and blades A5 circumferentially arranged on the heat dissipation disc A4 at intervals, the rotating shaft A2 drives the heat dissipation disc A4 to rotate, the blades A5 push air to flow towards the heat dissipation fins a11, and the flowing air takes away the heat on the heat dissipation fins a11 to cool the motor a.
As shown in fig. 8 and 9, the heat dissipation disc A4 includes a sleeve ring a41 for sleeving the mating rotating shaft A2 and a rotating disc a42 extending along the radial direction of the rotating shaft A2, the sleeve ring a41 extends along the length direction of the rotating shaft A2, one side of the blade A5 is fixed on the rotating disc a42, a connecting part a51 is arranged between the blade A5 and the outer side of the sleeve ring a41, the connecting part a51 increases the connection strength between the blade A5 and the heat dissipation fin a11, and the blade A5 can stably push air to flow; the reinforcing plates A43 are arranged at intervals in the circumferential direction between the sleeve joint ring A41 and one end, facing the motor A, of the rotating disc A42, so that the connection strength between the sleeve joint ring A41 and the rotating disc A42 is improved, and the service life of the heat dissipation disc A4 is prolonged; and be provided with first arcwall face A44 in the junction of cup joint ring A41 and rolling disc A42, rolling disc A42's outward flange is provided with the second arcwall face A45 that is used for guiding the air to motor A flow, and when the air centrifugal movement, first arcwall face A44 and second arcwall face A45 have all reduced the windage, reduce the noise that the air flow in-process produced, reduce the noise pollution that the self priming pump during operation produced.
As shown in fig. 8 and 9, the blades A5 are curved to form a concave arc surface a52 for pushing air and a convex arc surface a53 for guiding air to flow, when the heat dissipation disc A4 rotates, the concave arc surface a52 increases the area for pushing air to flow, so that the flow quantity of air is increased, the convex arc surface a53 reduces wind resistance, and noise generated by cutting between the blades A5 and the air in the rotating process is reduced, and noise pollution generated when the self-priming pump works is reduced; and be provided with on motor A and cover in the safety cover A6 (combining the fig. 2 and show) of cooling plate A4 and blade A5 periphery, safety cover A6 is provided with connecting plate A61 and ventilation board A62 relative with cooling plate A4 around pivot A2 circumference, has seted up a plurality of fresh air inlets A621 on the ventilation board A62, safety cover A6 has avoided cooling plate A4 and blade A5 to expose and has caused the accidental injury operating personnel to ventilation board A62 on the safety cover A6 can guarantee the transportation of air to cooling plate A4, and then guarantees to realize motor A's steady cooling effect.
As shown in fig. 8 and 9, one end of the blade A5 far away from the rotating shaft A2 extends to form an extension plate a54, the extension plate a54 and the bending direction of the blade A5 are arranged in the same way, the extension plate a54 increases the area for pushing air to flow, the air flow is improved, the cooling efficiency of the motor a is further improved, the length of the extension plate a54 is the same as the distance between the ventilation plate a62 and the rotating disc a42, the air flow fed in ventilation is consistent with the air flow output, stable cooling of the motor a is further realized, the equal amount of air input and output are prevented from generating larger wind resistance, noise generated by air flow is further reduced, and noise pollution generated during operation of the self-priming pump is reduced.
The working principle of the embodiment is as follows:
when the hydraulic pressure of the front runner B21 reaches or exceeds a specified value, the liquid pushes the sliding valve core B10 to move, the magnet B104 on the sliding valve core B10 is close to the magnetic induction switch B84, the magnetic induction switch B84 is closed, the rotating shaft A2 of the motor A rotates and drives the impeller D to rotate in the impeller chamber B3, the liquid enters the impeller chamber B3 from the rear runner B22, the impeller D pushes the liquid to flow fast and enter the gas-water separation chamber B4, and the increase of the liquid lift in the pump body B is realized.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (8)
1. The utility model provides a self priming pump of making an uproar falls, includes motor (A), pump case body (B1) and is used for connecting lid body (C) of motor (A) and pump case body (B1), its characterized in that: a rotating shaft (A2) is arranged in the motor (A), an impeller (D) is coaxially arranged on the rotating shaft (A2) in clearance fit, the impeller (D) is rotatably arranged in the pump shell body (B1), a water pressure balance hole (D1) is formed in the impeller (D), and the water pressure balance hole (D1) is communicated with two opposite axial sides of the impeller (D); the connecting cover is characterized in that a mechanical sealing chamber (C1) is further arranged in the connecting cover body (C), a sealing assembly (C14) is arranged in the mechanical sealing chamber (C1), the sealing assembly (C14) comprises a sealing rubber ring (C141), a wear-resistant ring (C143) and a lubricating ring (C144) which are coaxially sleeved on a rotating shaft (A2) in sequence, the sealing rubber ring (C141) is provided with an abutting ring (C142) along the axis, one end of the wear-resistant ring (C143) is embedded in the abutting ring (C142), and the outer peripheral side of the abutting ring (C142) is abutted to the inner side of the mechanical sealing chamber (C1); the sealing rubber ring (C141) is made of nitrile rubber, a water inlet hole (C3) is formed in the connecting cover body (C) close to one end of the pump shell body (B1) and located at the communication position of the impeller chamber (B3) and the water storage chamber, a water outlet hole (C4) is formed in the connecting cover body (C) and located on the inner wall of the mechanical sealing chamber (C1), and the water inlet hole (C3) and the water outlet hole (C4) are communicated to form a communication groove (C5); the pump casing is characterized in that a pressurizing flow channel for increasing the flow rate of liquid is arranged in the pump casing body (B1), the pressurizing flow channel in the pump casing body (B1) comprises a water inlet flow channel (B2), an impeller chamber (B3) and a gas-water separation chamber (B4) through which the liquid sequentially passes, a main partition plate (B14) is arranged in the pump casing body (B1) and between the water inlet flow channel (B2) and the gas-water separation chamber (B4), and pressurizing water inlets (B31) communicated with the water inlet flow channel (B2) and the impeller chamber (B3) and pressurizing water outlets (B32) communicated with the impeller chamber (B3) and the gas-water separation chamber (B4) are respectively formed on two sides, close to the impeller chamber (B3), of the main partition plate (B14).
2. The noise reducing self priming pump of claim 1, wherein: the two opposite sides of the impeller (D) are symmetrically provided with protective pieces (D2), and the protective plates (D21) are made of anti-corrosion materials; the guard (D2) comprises a guard plate (D21) parallel to the impeller (D) and an embedded ring (D22) coaxially arranged with the rotating shaft (A2).
3. The noise reducing self priming pump of claim 1, wherein: the matching end of the rotating shaft (A2) and the impeller (D) is provided with matching planes (A21) at equal intervals around the circumferential direction of the axis of the rotating shaft, and the impeller (D) is provided with a splicing groove matched with the rotating shaft (A2).
4. The noise reducing self priming pump of claim 1, wherein: the impeller is characterized in that a first drainage groove (D3) and a second drainage groove (D4) are circumferentially arranged on two axial sides of the impeller (D) at equal intervals, a first push plate (D31) is formed between the first drainage grooves (D3), a second push plate (D41) is formed between the second drainage grooves (D4), and the first push plate (D31) and the second push plate (D41) are alternately distributed on two sides of the impeller (D) at equal intervals.
5. The noise reducing self priming pump of claim 1, wherein: the connecting cover is characterized in that a bearing chamber (C2) is arranged in the connecting cover body (C), a buffer ring groove (C21) is coaxially formed in the inner wall of the bearing chamber (C2), an elastic ring (C22) is embedded in the buffer ring groove (C21), a bearing (C13) matched with a rotating shaft (A2) in the motor (A) is arranged in the bearing chamber (C2) in a clearance fit mode, and the elastic ring (C22) is elastically abutted to the bearing (C13).
6. The noise reducing self priming pump of claim 1, wherein: the motor (A) comprises a casing (A1) and a heat radiation structure (A3) arranged on the casing (A1), the heat radiation structure (A3) comprises a heat radiation disc (A4) and blades (A5) arranged on one end of a rotating shaft (A2) far away from an impeller (D), the blades (A5) are circumferentially arranged on one side, deviating from the motor (A), of the heat radiation disc (A4) at intervals, and the blades (A5) are bent to form a concave arc surface (A52) for pushing air and a convex arc surface (A53) for guiding air to flow.
7. The noise reducing self priming pump according to claim 6, wherein: the cooling disc (A4) is including being used for the cover to establish the cover ring (A41) of cooperation pivot (A2) and along pivot (A2) radial extension's rolling disc (A42), cover ring (A41) to keeping away from the direction extension of pivot (A2), blade (A5) one side is fixed in on rolling disc (A42), just be provided with connecting portion (A51) between blade (A5) and cover ring (A41) outside, cover ring (A41) and rolling disc (A42) junction is provided with first arcwall face (A44), the outward flange of rolling disc (A42) is provided with second arcwall face (A45) that are used for guiding air to motor (A) flow.
8. The noise reducing self priming pump according to claim 7, wherein: the fan is characterized in that one end of the blade (A5) away from the rotating shaft (A2) is extended with a lengthening plate (A54), the lengthening plate (A54) and the blade (A5) are arranged in the same bending direction, a protecting cover (A6) covering the periphery of the radiating plate (A4) and the blade (A5) is arranged on the motor (A), the protecting cover (A6) is circumferentially provided with a connecting plate (A61) and a ventilating plate (A62) opposite to the radiating plate (A4) around the rotating shaft (A2), a plurality of air inlet holes (A621) are formed in the ventilating plate (A62), and the length of the lengthening plate (A54) is the same as the distance between the ventilating plate (A62) and the rotating plate (A42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811085803.6A CN109026826B (en) | 2018-09-18 | 2018-09-18 | Noise-reducing self-priming pump |
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| CN201811085803.6A CN109026826B (en) | 2018-09-18 | 2018-09-18 | Noise-reducing self-priming pump |
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| CN109026826A CN109026826A (en) | 2018-12-18 |
| CN109026826B true CN109026826B (en) | 2024-03-29 |
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| CN201811085803.6A Active CN109026826B (en) | 2018-09-18 | 2018-09-18 | Noise-reducing self-priming pump |
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| CN114144963A (en) * | 2019-08-05 | 2022-03-04 | 三菱电机株式会社 | Motor and air conditioner using the same |
| CN110425177A (en) * | 2019-09-10 | 2019-11-08 | 浙江日井泵业股份有限公司 | A kind of impeller anti-wear structure on water pump |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4523899A (en) * | 1982-12-15 | 1985-06-18 | Ebara Corporation | Submergible motor pump assembly |
| US4881871A (en) * | 1987-04-10 | 1989-11-21 | Speck-Pumpenfabrik, Walter Speck Kg | Peripheral pump |
| JP2002147389A (en) * | 2000-11-10 | 2002-05-22 | Matsui Mfg Co | Shaft seal device of pump |
| TW200506222A (en) * | 2003-05-09 | 2005-02-16 | Leybold Vakuum Gmbh | Turbo pump |
| CN2842036Y (en) * | 2005-11-09 | 2006-11-29 | 长沙耐普泵业有限公司 | The blade type gas-liquid is mixed defeated pump |
| CN101149065A (en) * | 2007-11-12 | 2008-03-26 | 张荣杰 | High temperature-resistant liner tetrafluoro pump mechanical seal cooling water device |
| CN201412358Y (en) * | 2009-06-05 | 2010-02-24 | 淄博市博山圣诺耐腐蚀设备有限公司 | Ultrahigh molecular weight polyethylene corrosion-resistant slurry pipeline pump |
| CN101865156A (en) * | 2010-07-14 | 2010-10-20 | 浙江浪奇泵业有限公司 | Connection structure of bearing cover and rotor shaft in hot-water recycle pump |
| CN201739186U (en) * | 2010-06-01 | 2011-02-09 | 杭州萧山美特轻工机械有限公司 | Pulp pump with wide runners |
| CN202073826U (en) * | 2011-06-09 | 2011-12-14 | 张永胜 | Feed pump |
| CN102374171A (en) * | 2010-08-12 | 2012-03-14 | 江苏尚宝罗泵业有限公司 | Non-block rotary type pulp pump |
| CN103688450A (en) * | 2011-07-22 | 2014-03-26 | 株式会社日立产机系统 | Pumping device |
| CN103758778A (en) * | 2014-01-24 | 2014-04-30 | 温州市康而达实业有限公司 | Horizontal centrifugal pump with adjusting guard plate |
| CN203822648U (en) * | 2014-03-13 | 2014-09-10 | 石家庄远洋工业泵有限公司 | Heavy slurry pump |
| CN203978860U (en) * | 2014-06-23 | 2014-12-03 | 杨高怀 | The high-lift omnipotent self-priming water pump of handy type |
| RU158391U1 (en) * | 2015-10-05 | 2015-12-27 | Борис Семенович Захаров | MECHANICAL SEAL |
| CN205064844U (en) * | 2015-09-11 | 2016-03-02 | 益阳市德林机械有限公司 | Rotary mechanism hides oily wear -resisting rotary seal |
| CN106151524A (en) * | 2015-03-09 | 2016-11-23 | 韩乐工 | A kind of double mechanical seal in band I-shaped closure chamber |
| CN208870836U (en) * | 2018-09-18 | 2019-05-17 | 台州德基水泵科技有限公司 | A kind of noise reduction self priming pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6984099B2 (en) * | 2003-05-06 | 2006-01-10 | Visteon Global Technologies, Inc. | Fuel pump impeller |
-
2018
- 2018-09-18 CN CN201811085803.6A patent/CN109026826B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4523899A (en) * | 1982-12-15 | 1985-06-18 | Ebara Corporation | Submergible motor pump assembly |
| US4881871A (en) * | 1987-04-10 | 1989-11-21 | Speck-Pumpenfabrik, Walter Speck Kg | Peripheral pump |
| JP2002147389A (en) * | 2000-11-10 | 2002-05-22 | Matsui Mfg Co | Shaft seal device of pump |
| TW200506222A (en) * | 2003-05-09 | 2005-02-16 | Leybold Vakuum Gmbh | Turbo pump |
| CN2842036Y (en) * | 2005-11-09 | 2006-11-29 | 长沙耐普泵业有限公司 | The blade type gas-liquid is mixed defeated pump |
| CN101149065A (en) * | 2007-11-12 | 2008-03-26 | 张荣杰 | High temperature-resistant liner tetrafluoro pump mechanical seal cooling water device |
| CN201412358Y (en) * | 2009-06-05 | 2010-02-24 | 淄博市博山圣诺耐腐蚀设备有限公司 | Ultrahigh molecular weight polyethylene corrosion-resistant slurry pipeline pump |
| CN201739186U (en) * | 2010-06-01 | 2011-02-09 | 杭州萧山美特轻工机械有限公司 | Pulp pump with wide runners |
| CN101865156A (en) * | 2010-07-14 | 2010-10-20 | 浙江浪奇泵业有限公司 | Connection structure of bearing cover and rotor shaft in hot-water recycle pump |
| CN102374171A (en) * | 2010-08-12 | 2012-03-14 | 江苏尚宝罗泵业有限公司 | Non-block rotary type pulp pump |
| CN202073826U (en) * | 2011-06-09 | 2011-12-14 | 张永胜 | Feed pump |
| CN103688450A (en) * | 2011-07-22 | 2014-03-26 | 株式会社日立产机系统 | Pumping device |
| CN103758778A (en) * | 2014-01-24 | 2014-04-30 | 温州市康而达实业有限公司 | Horizontal centrifugal pump with adjusting guard plate |
| CN203822648U (en) * | 2014-03-13 | 2014-09-10 | 石家庄远洋工业泵有限公司 | Heavy slurry pump |
| CN203978860U (en) * | 2014-06-23 | 2014-12-03 | 杨高怀 | The high-lift omnipotent self-priming water pump of handy type |
| CN106151524A (en) * | 2015-03-09 | 2016-11-23 | 韩乐工 | A kind of double mechanical seal in band I-shaped closure chamber |
| CN205064844U (en) * | 2015-09-11 | 2016-03-02 | 益阳市德林机械有限公司 | Rotary mechanism hides oily wear -resisting rotary seal |
| RU158391U1 (en) * | 2015-10-05 | 2015-12-27 | Борис Семенович Захаров | MECHANICAL SEAL |
| CN208870836U (en) * | 2018-09-18 | 2019-05-17 | 台州德基水泵科技有限公司 | A kind of noise reduction self priming pump |
Non-Patent Citations (2)
| Title |
|---|
| 李海金等.《液压与气动技术》.北京航空航天大学出版社,2015,(第3版),第172页. * |
| 郑智受等.《氮气弹簧技术在模具中的应用》.机械工业出版社,1998,(第1版),第38-39页. * |
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| CN109026826A (en) | 2018-12-18 |
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