CN102937099B - Deep-well submersible pump - Google Patents
Deep-well submersible pump Download PDFInfo
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- CN102937099B CN102937099B CN201210506034.9A CN201210506034A CN102937099B CN 102937099 B CN102937099 B CN 102937099B CN 201210506034 A CN201210506034 A CN 201210506034A CN 102937099 B CN102937099 B CN 102937099B
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- bearing
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- 238000007789 sealing Methods 0.000 claims description 8
- 230000013011 mating Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The invention provides a deep-well submersible pump, belongs to the technical field of mechanical equipment and solves the technical problems that an impeller and an impeller sleeve of the traditional deep-well submersible pump easily generate friction so as to cause blocking of the impeller or wearing and the like. The deep-well submersible pump comprises a motor and a pump body, wherein the motor and the pump body enable a main shaft of the motor to drive the impeller in the pump body to rotate by a connecting shaft structure; the main shaft penetrates into a rotor of the motor; and the lower end of the main shaft is provided with an adjusting structure which can carry out axial adjustment on the main shaft. The deep-well submersible pump provided by the invention has the advantages that the axial displacement of the main shaft of the motor can be adjusted, so that the wear between the impeller and the impeller sleeve is prevented and the service life of the impeller is prolonged.
Description
Technical field
The invention belongs to mechanical equipment technical field, relate to a kind of deep well submerged pump.
Background technique
Well submersible pump is motor and pump housing direct connection, and water pump complete machine pulls the plug the water lift facility of work, and well submersible pump is generally applicable to extract underground water from deep-well, also can be used for the water lift engineerings such as river, reservoir, water channel; This well submersible pump can also be used for people and animals' water in field irrigation and mountain area, plateau, also can for city, factory, railway, mine, building site water supply and sewage.
Well submersible pump has 3 advantages: first: motor, the pump housing pull the plug safe and reliable to operation; Second: to well casing, lifting pipe without particular/special requirement (that is: steel tube well, grey pipe well, Tu Jing etc. all can use); 3rd: install, use, simply easy to maintenance, floor space is little, do not need build pump house).
Existing well diving pump structure is be provided with by the flow passage components of pump combination stacked on the main shaft of pump, (combination of this pump is made up of impeller, stator, impeller set, impeller is arranged in impeller set, impeller upper end is provided with stator, water inlet is had bottom impeller set, the lower end surface of impeller port ring and impeller set form gap plane axial seal, and impeller coordinates with gap of main reinforcement, axially do not fix); Main shaft between two adjacent pump combinations is arranged with impeller spacer, well submersible pump adopts overall outer tube structure, the upper end of well submersible pump is provided with a set of guide bearing, coordinate with tape spool coupling and form two end supports, one end of pump block is connected with connection frame, the other end with go out water hull and to be connected and the pump clamped in pump block combines.
Motor is fixed with in the below of pump combination, the main shaft that motor shaft and the pump of motor combine is connected with the mode of spline by keyway, motor in existing deep well submerged pump generally all adopts common motor, the motor shaft axial displacement of this motor can not regulate, when the main shaft during the motor shaft of motor combines with pump is docked by spline and keyway, determine the axial position of main shaft is bad, the main shaft in pump assembly is caused to move up or move down, main axle moving will change by the axial distance of impeller in impeller set, impeller is caused to encounter the inwall of impeller set, impeller is worn and torn when rotation, working life shortens, its main cause of interior edge face that impeller can be made why to touch impeller set is: main shaft drives the wheel rotation in pump combination, its main shaft is not axially fixed in pump combination, and impeller is positioned at impeller set, the upper-end surface of impeller, all there is gap with the inwall of impeller set in lower end surface, play an analogy, when main shaft a little axially upwards offsets, the upper-end surface of impeller will touch impeller set upper end cap internal surface, when impeller is touched mutually with impeller set when main shaft rotates, will make both Relative friction, cause card impeller or wearing and tearing.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of deep well submerged pump that can regulate electric machine main shaft axial displacement.
Object of the present invention realizes by following technical proposal: a kind of deep well submerged pump, comprise motor and the pump housing, described motor and the pump housing make the vane rotary in the main shaft drive pump housing of motor by connecting shaft structure between the two, it is characterized in that, described main shaft is located in the rotor of motor, is provided with one can carry out axial adjustment regulation structure to main shaft in the lower end of main shaft.
This deep well submerged pump is mainly provided with one can carry out axial adjustment controlling device to electric machine main shaft in the lower end of electric machine main shaft, hexagonal rod during electric machine main shaft is combined with pump install dock time, electric machine main shaft is in axial accurate location, electric machine main shaft can not cause axially on the upper side or axially on the lower side to the hexagonal rod in pump combination, the present invention in the running, electric machine main shaft drives the hexagonal rod in pump combination to rotate, hexagonal rod impeller rotates in impeller set, impeller is just in time in the neutral position in impeller set, impeller can not be made in impeller set to occur stuck phenomenon, impeller and impeller set relative wear can not be made equally, extend the working life of impeller.
In above-mentioned deep well submerged pump, described motor comprises casing, two ends in casing are fixed with respectively and above-mentioned electric machine main shaft are rotatably connected on upper bearing bracket in casing and step, the lower end of described main shaft is arranged on step by bearing one, the inner ring interference of described bearing one is set on main shaft, there is gap between the outer ring of this bearing one and step, the upper end of main shaft described in this extends to outside casing through upper bearing bracket, is provided with bearing two between main shaft and upper bearing bracket.Step offers the installation position of bearing one, bearing one is arranged in installation position, the lower end of main shaft puts in installation position, and this main shaft lower end is plugged in the inner ring of bearing one, there is gap in outer ring and the installation position of bearing one, the object of such setting is: when regulation structure is when carrying out axial adjustment to main shaft, main shaft together with bearing one axially, lower adjustment.
In above-mentioned deep well submerged pump, the step that described regulation structure is included in main shaft axial direction has been threaded connection an adjusting element, a pad held up by bearing one is provided with between adjusting element and bearing one, described adjusting element is inner by being spirally extended in step, the outer end of this adjusting element stretch out step outer and on outer end spiral have nut, the inner of described adjusting element is resisted against on above-mentioned pad.This adjusting element is threaded connection mode and is connected on step, and the spiral progress of adjusting element on step can carry out the electrodeless adjustment of axis to the main shaft of motor, and structure is simple, easy to operate.
In above-mentioned deep well submerged pump, described pad is a disc.Outer bottom and adjusting element the inner of pad disk like lean, and dish is along holding up above-mentioned bearing one, and the object arranged like this makes this axially loaded of bearing one even.
As the another kind of structure of regulation structure, in above-mentioned deep well submerged pump, the step that described regulation structure is included in main shaft axial direction has been threaded connection an adjusting element, and described adjusting element is just on main shaft.The object of such setting, structure is simple, but regulating effect does not have above-mentioned another kind of regulating effect good.
In above-mentioned deep well submerged pump, described adjusting element is one with externally threaded screw rod.Screw rod is threaded with step, and the object arranged like this is that the Placement by screw thread carries out electrodeless adjustment axial distance.
In above-mentioned deep well submerged pump, hexagonal rod and several pump combinations mutually superposed is provided with in the described pump housing, one end of described hexagonal rod is through the impeller in each pump combination and can impeller to rotate and one end that one end of this hexagonal rod extends to the pump housing is connecting shaft end, above-mentioned connecting shaft structure is included in a connecting shaft cover that connecting shaft end is connected, the inwall of connecting shaft cover is provided with spline, the external part periphery wall of above-mentioned electric machine main shaft is provided with keyway, the main shaft of described motor and hexagonal rod by above-mentioned keyway and spline in mating connection.
In above-mentioned deep well submerged pump, the inner ring interference of described bearing two is set on main shaft, gap is there is between the outer ring of described bearing two and upper bearing bracket, also mechanical seal is provided with between bearing two and upper bearing bracket, this mechanical seal is set on main shaft, the upper end of described mechanical seal is resisted against on upper bearing bracket, and the lower end abutment of this mechanical seal is on bearing two.
In above-mentioned deep well submerged pump, be also provided with oil sealing between described upper bearing bracket and main shaft, described oil sealing is fixed on the exterior edge face of upper bearing bracket by end cap.
In above-mentioned deep well submerged pump, described main shaft interference be located on the rotor of motor, there is gap in the rotor of this motor and the stator of motor.
Compared with prior art, this deep well submerged pump is provided with one can carry out axial adjustment regulation structure to main shaft in the lower end of main shaft, adjusting element in this regulation structure adopts screw rod, screw rod is threaded with step, the electrodeless adjustment of axial displacement can be carried out to electric machine main shaft, electric machine main shaft is made to be in axial accurate location, carry out axial position when the hexagonal rod docking that electric machine main shaft and pump combine accurately to dock, the impeller that each pump is combined is in the neutral position in impeller set, like this when electric machine main shaft impeller is rotated, relative wear would not be had between impeller and impeller set, impeller can not be made in impeller set to occur stuck phenomenon, improve the working life of impeller.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of this deep well submerged pump.
Fig. 2 is the sectional structure schematic diagram of the present embodiment two deep well submerged pump.
In figure, 1, motor; 2, the pump housing; 3, impeller; 4, main shaft; 4a, keyway; 5, rotor; 6, casing; 7, upper bearing bracket; 7a, fixed position; 8, step; 8a, installation position; 8b, tapped hole; 9, bearing one; 10, bearing two; 11, adjusting element; 12, pad; 13, nut; 14, hexagonal rod; 15, pump combination; 16, connecting shaft cover; 16a, spline; 17, mechanical seal; 18, oil sealing; 19, end cap; 20, stator.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Embodiment one
As this deep well submerged pump of Fig. 1 forms primarily of motor 1 and the pump housing 2, hexagonal rod 14 and several pump combinations 15 mutually superposed is provided with in the pump housing 2, one end of described hexagonal rod 14 is through the impeller 3 in each pump combination 15 and can impeller 3 to rotate and one end that one end of this hexagonal rod 14 extends to the pump housing 2 is connecting shaft end, this connecting shaft end is connected on the main shaft 4 of motor 1 by a connecting shaft structure, this connecting shaft structure is mainly: be connected a connecting shaft cover 16 on connecting shaft end, the inwall of connecting shaft cover 16 offers spline 16a, the external part periphery wall of motor 1 main shaft 4 is provided with keyway 4a, main shaft 4 and the hexagonal rod 14 of motor 1 are in mating connection by above-mentioned keyway 4a and spline 16a, motor 1 of the present invention forms primarily of casing 6, two ends in casing 6 are fixed with upper bearing bracket 7 and step 8 respectively, the two ends of motor 1 main shaft 4 are rotatably connected on upper bearing bracket 7 and step 8 respectively, main shaft 4 respectively with upper bearing bracket 7, the linkage structure of step 8 is: upper bearing bracket 7 offers fixed position 7a, fixed position 7a installs mechanical seal 17 and bearing 2 10, the upper end of this main shaft 4 extends to outside casing 6 through mechanical seal 17 and bearing 2 10 successively and the pump housing 2 hexagonal rod 14 connects holds, oil sealing 18 is also provided with between upper bearing bracket 7 and main shaft 4, oil sealing 18 is fixed on the exterior edge face of upper bearing bracket 7 by end cap 19, the inner ring interference of bearing 2 10 is set on main shaft 4, gap is there is between the outer ring of bearing 2 10 and the fixed position 7a of upper bearing bracket 7, the upper end of mechanical seal 17 is resisted against on upper bearing bracket 7, the lower end abutment of this mechanical seal 17 is on bearing 2 10, when regulation structure is when carrying out axial adjustment to main shaft 4, main shaft 4 together with bearing 2 10 axially, lower adjustment, step 8 offers the installation position 8a of bearing 1, bearing 1 is arranged in the 8a of installation position, the lower end of main shaft 4 puts in the 8a of installation position, and this main shaft 4 lower end is plugged in the inner ring of bearing 1, there is gap in outer ring and the installation position 8a of bearing 1, when regulation structure is when carrying out axial adjustment to main shaft 4, main shaft 4 together with bearing 1 axially, lower adjustment.
The main shaft 4 of motor 1 is located in the rotor 5 of motor 1, during actual use, on the rotor 5 being located in motor 1 of this main shaft 4 interference, there is gap in the rotor 5 of this motor 1 and the stator 20 of motor 1, the lower end of main shaft 4 has one can carry out axial adjustment regulation structure to main shaft 4, its regulation structure is: on the step 8 of main shaft 4 axial direction, offer the female tapped hole 8b of band, an adjusting element 11 has been threaded connection in tapped hole 8b, a pad 12 held up by bearing 1 is provided with between adjusting element 11 and bearing 1, adjusting element 11 the inner is by being spirally extended in step 8, the outer end of this adjusting element 11 stretch out step 8 outer and on outer end spiral have nut 13, the inner of adjusting element 11 is resisted against on above-mentioned pad 12, actual when selecting this adjusting element 11 select with externally threaded screw rod, pad 12 is a disc when actual fabrication, outer bottom and adjusting element 11 the inner of pad 12 disk like lean, dish is along being held up by above-mentioned bearing 1, the object of such setting makes this axially loaded of bearing 1 even, this adjusting element 11 is threaded connection mode and is connected on step 8, and the spiral progress of adjusting element 11 on step 8 can carry out the electrodeless adjustment of axis to the main shaft 4 of motor 1, and structure is simple, easy to operate.
Embodiment two
As shown in Figure 2, the structure of the present embodiment is substantially identical with the structure of embodiment one, its difference is, regulation structure has mainly been threaded connection an adjusting element 11 on the step 8 of main shaft 4 axial direction, adjusting element 11 is just on main shaft 4, the object of such setting, structure is simple, but regulating effect does not have above-mentioned another kind of regulating effect good.
This adjusting element 11 is one with externally threaded screw rod, and screw rod is threaded with step 8, and the object arranged like this is that the Placement by screw thread carries out electrodeless adjustment axial distance.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ herein: motor 1; The pump housing 2; Impeller 3; Main shaft 4; Keyway 4a; Rotor 5; Casing 6; Upper bearing bracket 7; Fixed position 7a; Step 8; Installation position 8a; Tapped hole 8b; Bearing 1; Bearing 2 10; Adjusting element 11; Pad 12; Nut 13; Hexagonal rod 14; Pump combination 15; Connecting shaft cover 16; Spline 16a; Mechanical seal 17; Oil sealing 18; End cap 19; Term such as stator 20 grade, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (6)
1. a deep well submerged pump, comprise motor (1) and the pump housing (2), described motor (1) and the pump housing (2) make the main shaft (4) of motor (1) drive the impeller (3) in the pump housing (2) to rotate by connecting shaft structure between the two, it is characterized in that, described main shaft (4) is located in the rotor (5) of motor (1), one can carry out axial adjustment regulation structure to main shaft (4) is provided with in the lower end of main shaft (4), described motor (1) comprises casing (6), two ends in casing (6) are fixed with respectively and above-mentioned motor (1) main shaft (4) are rotatably connected on upper bearing bracket (7) in casing (6) and step (8), the lower end of described main shaft (4) is arranged on step (8) by bearing one (9), the inner ring interference of described bearing one (9) is set on main shaft (4), gap is there is between the outer ring of this bearing one (9) and step (8), the upper end of main shaft described in this (4) extends to casing (6) outward through upper bearing bracket (7), bearing two (10) is provided with between main shaft (4) and upper bearing bracket (7), the inner ring interference of described bearing two (10) is set on main shaft (4), gap is there is between the outer ring of described bearing two (10) and upper bearing bracket (7), the step (8) that described regulation structure is included in main shaft (4) axial direction has been threaded connection an adjusting element (11), a pad (12) held up by bearing one (9) is provided with between adjusting element (11) and bearing one (9), described adjusting element (11) is inner by being spirally extended in step (8), step (8) spiral outward and on outer end is stretched out in the outer end of this adjusting element (11) nut (13), the inner of described adjusting element (11) is resisted against on above-mentioned pad (12), described pad (12) is in a disc.
2. deep well submerged pump according to claim 1, is characterized in that, described adjusting element (11) is one with externally threaded screw rod.
3. deep well submerged pump according to claim 1, it is characterized in that, hexagonal rod (14) and several pumps combination (15) mutually superposed is provided with in the described pump housing (2), one end of described hexagonal rod (14) is through the impeller (3) in each pump combination (15) and can impeller (3) to rotate and one end that one end of this hexagonal rod (14) extends to the pump housing (2) is connecting shaft end, above-mentioned connecting shaft structure is included in a connecting shaft cover (16) that connecting shaft end is connected, the inwall of connecting shaft cover (16) is provided with spline (16a), the external part periphery wall of above-mentioned motor (1) main shaft (4) is provided with keyway (4a), the main shaft (4) of described motor (1) and hexagonal rod (14) by above-mentioned keyway (4a) and spline (16a) in mating connection.
4. deep well submerged pump according to claim 1, it is characterized in that, mechanical seal (17) is also provided with between bearing two (10) and upper bearing bracket (7), this mechanical seal (17) is set on main shaft (4), the upper end of described mechanical seal (17) is resisted against on upper bearing bracket (7), and the lower end abutment of this mechanical seal (17) is on bearing two (10).
5. deep well submerged pump according to claim 2, it is characterized in that, also be provided with oil sealing (18) between described upper bearing bracket (7) and main shaft (4), described oil sealing (18) is fixed on the exterior edge face of upper bearing bracket (7) by end cap (19).
6. deep well submerged pump according to claim 1, it is characterized in that, on the rotor (5) being located in motor (1) of described main shaft (4) interference, there is gap in the rotor (5) of this motor (1) and the stator (20) of motor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210506034.9A CN102937099B (en) | 2012-11-29 | 2012-11-29 | Deep-well submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210506034.9A CN102937099B (en) | 2012-11-29 | 2012-11-29 | Deep-well submersible pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102937099A CN102937099A (en) | 2013-02-20 |
| CN102937099B true CN102937099B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210506034.9A Active CN102937099B (en) | 2012-11-29 | 2012-11-29 | Deep-well submersible pump |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089744A (en) * | 2016-09-08 | 2016-11-09 | 台州锦霸工贸有限公司 | A kind of high speed well immersible pump |
| CN107989800A (en) * | 2017-12-12 | 2018-05-04 | 青蛙泵业有限公司 | A kind of new high-lift built-in submerged pump |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202326288U (en) * | 2011-11-30 | 2012-07-11 | 台州市百施度工贸有限公司 | Variable frequency speed-increasing deep well submersible pump |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1213377B (en) * | 1986-11-11 | 1989-12-20 | Marelli Componenti Elettrodome | MULTI-STATE PUMP FOR SUBMERSIBLE ELECTRIC PUMP. |
| CN2308748Y (en) * | 1997-08-07 | 1999-02-24 | 吴春根 | Underwater pump |
| CN1839265A (en) * | 2003-07-22 | 2006-09-27 | 环境技术泵设备公司 | Apparatus for axial adjustment of chopper pump clearances |
| CN201269208Y (en) * | 2008-09-12 | 2009-07-08 | 熊文安 | Axial movement controllable submersible electric pump employing graphite slide bearing |
| CN201568321U (en) * | 2009-12-01 | 2010-09-01 | 浙江新界泵业股份有限公司 | Improved submerged water pump for well |
| CN202348705U (en) * | 2011-12-19 | 2012-07-25 | 浙江大福泵业有限公司 | Deep-well submerged centrifugal pump |
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- 2012-11-29 CN CN201210506034.9A patent/CN102937099B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202326288U (en) * | 2011-11-30 | 2012-07-11 | 台州市百施度工贸有限公司 | Variable frequency speed-increasing deep well submersible pump |
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Denomination of invention: Deep well submersible pump Effective date of registration: 20211101 Granted publication date: 20150610 Pledgee: Zhejiang Commercial Bank Co.,Ltd. Taizhou Wenling sub branch Pledgor: Jinba Technology Co.,Ltd. Registration number: Y2021330002116 |
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