CN104967240A - Submersible pump motor for well - Google Patents
Submersible pump motor for well Download PDFInfo
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- CN104967240A CN104967240A CN201510433396.3A CN201510433396A CN104967240A CN 104967240 A CN104967240 A CN 104967240A CN 201510433396 A CN201510433396 A CN 201510433396A CN 104967240 A CN104967240 A CN 104967240A
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- rotor
- cylindrical shell
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- submerged pump
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Abstract
The invention provides a submersible pump motor for a well, and belongs to the technical field of motors. The invention solves a problem that a conventional motor is poor in operation stability and short in service life. The motor comprises a cylinder, a rotor, and a stator, wherein the stator is fixed in the cylinder, and the rotor passes through the interior of the stator. One end of the rotor passes out from the cylinder, and two end faces of the rotor are connected with the cylinder through a single radial loading bearing assembly. The lower end face of the rotor and the cylinder are connected with each other through a single axial loading bearing assembly. The upper end part of the rotor is fixedly provided with a play-prevention lower limiting block, and the cylinder is fixedly provided with a play-prevention upper limiting block corresponding to the play-prevention lower limiting block. There is a gap between the play-prevention upper limiting block and the play-prevention lower limiting block. When the motor is started, the rotor is allowed to play upwards within a small distance. The play-prevention upper limiting block and the play-prevention lower limiting block can stably withstand a force and can flexibly rotate after abutting against each other, thereby remarkably reducing the start shaking and impact of the motor.
Description
Technical field
The invention belongs to technical field of motors, particularly relate to a kind of well motor for submerged pump.
Background technology
Well immersible pump is the visual plant of deep-well water lift, and during use, whole unit pulls the plug work, and underground water is extracted earth's surface.
Pertinent literature about well immersible pump is more, as a kind of well use multistage submersible electric pump (publication number CN101539152A) that Chinese patent literature is recorded.Rotor is the core component of well motor for submerged pump, improves the target that the operation stability of motor and useful life are those skilled in the art's long-sought.
Summary of the invention
The present invention proposes a kind of well motor for submerged pump, the technical problem to be solved in the present invention how to improve well motor for submerged pump operation stability.
The technical problem that will solve of the present invention realizes by following technical proposal: this well motor for submerged pump comprises cylindrical shell, rotor and stator, stator is fixed in cylindrical shell, rotor is located in stator, one end of rotor passes cylindrical shell, and the both ends of rotor are all connected by single radial load bearing assembly with cylindrical shell; The lower surface of rotor is connected by uniaxially load bearings assembly with between cylindrical shell; The upper end of rotor is fixed with anti-on alter lower position block, cylindrical shell is fixed with anti-on alter on corresponding anti-of lower position block and alter upper limit position block, alter upper limit position block on anti-and anti-on alter between lower position block there is gap.As preferably, described gap is 2 ~ 5 ㎜.
In above-mentioned well motor for submerged pump, described anti-on alter lower position block upper surface be provided with porcelain ring, the lower surface of altering lower position block on anti-is fixed with graphite circle.
Compared with prior art, this well radial load bearing assembly single in motor for submerged pump can ensure axiality effectively.Allow rotor upwards play tiny distance during electric motor starting, alter on anti-lower position block with anti-on alter lower position block lean after can be stable stressed and rotating neatly, and then reduce shake and the impact of electric motor starting significantly; The stable rear rotor of motor declines naturally, and uniaxially load bearings assembly still can ensure that motor stabilizing runs.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of this well motor for submerged pump.
Fig. 2 is Fig. 1 middle and upper part separation structure enlarged drawing.
Fig. 3 is Fig. 1 lower middle portion schematic enlarged-scale view.
Fig. 4 is the sectional structure schematic diagram of end inner sleeve.
In figure, 1, top cover; 1a, the second Connection Block; 1b, mechanical sealing assembly; 1b1, seal receptacle; 1c, the first bolt; 1d, the first sealing ring; 2, upper shell; 2a, upper stainless steel cylinder; 2b, the first Connection Block; 3, lower shell; 3a, lower support cylindrical shell; 3a1, fixture block lead-in groove; 3b, the 3rd Connection Block; 3c, the 4th Connection Block; 3d, the 5th Connection Block; 3e, stainless steel protection cover; 3f, jump ring; 3g, the 3rd bolt; 4, base; 4a, end overcoat; 4b, end inner sleeve; 4b1, preferential variant part; 4b2, sealing outer edge; 4b3, bolt hole; 4b4, the first sealing lip; 4b5, the second sealing lip; 4b6, the 3rd sealing lip; 4c, the 4th bolt; 5, rotor; 6, stator; 7, housing; 8, the second bolt; 9, the second sealing ring; 10, single radial load bearing assembly; 10a, ceramic jacket; 10b, graphite cannula; 11, clutch shaft bearing seat; 12, the second bearing pedestal; 13, uniaxially load bearings assembly; 13a, upper thrust block; 13b, lower thrust block; 13c, ceramic block; 13d, graphite block; 14, guide pipe; 14a, gathering sill; 15, guide post; 16, lower position block is altered on anti-; 17, upper limit position block is altered on anti-; 18, porcelain ring; 19, graphite circle; 20, adjustment screw; 21, locking nut; 22, trip bolt.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1 to Figure 3, this well motor for submerged pump comprises cylindrical shell, rotor 5, stator 6 and housing 7.
Cylindrical shell comprises top cover 1, upper shell 2, lower shell 3 and base 4.Upper shell 2 is all tightly connected by Detachable connection structure with base 4 with lower shell 3, lower shell 3; This structure makes the parts of this well motor for submerged pump more easily manufacture, and assembles more convenient, realizes reducing production cost.
Upper shell 2 comprises upper stainless steel cylinder 2a in a tubular form, and the lower port place of upper stainless steel cylinder 2a has been sealedly and fixedly connected the first Connection Block 2b.
Top cover 1 comprises the second Connection Block 1a be sealedly and fixedly connected with the upper port of upper stainless steel cylinder 2a and the mechanical sealing assembly 1b with seal receptacle 1b1, is fixedly connected with and is provided with the first sealing ring 1d between seal receptacle 1b1 and the second Connection Block 1a between seal receptacle 1b1 with the second Connection Block 1a by the first bolt 1c.
Lower shell 3 lower support cylindrical shell 3a in a tubular form, the upper port place of lower support cylindrical shell 3a is provided with the 3rd Connection Block 3b, and the upper port place of lower support cylindrical shell 3a is provided with the 4th Connection Block 3c and the 5th Connection Block 3d.Lower support cylindrical shell 3a can carry larger active force, and lower support cylindrical shell 3a is wrapped with stainless steel protection cover 3e, can ensure well motor for submerged pump appearance luster consistency, lower support cylindrical shell 3a can be avoided again to get rusty.
The fixture block lead-in groove 3a1 upper port inwall of lower support cylindrical shell 3a having the first annular slot and be connected with the first annular slot, the 3rd Connection Block 3b has the fixture block that polylith protrudes; 3rd Connection Block 3b first can be passed through the second bolt 8 pre-connection with the first Connection Block 2b by this structure, then by lower support cylindrical shell 3a and the 3rd Connection Block 3b phase clamping; Tubulose lower support cylindrical shell 3a can be avoided like this and cause the problem screwing the second bolt 8 inconvenience; In other words, this structure makes assembling more convenient.
The two ends of stainless steel protection cover 3e all have the flange extending to lower support cylindrical shell 3a end, be provided with the second sealing ring 9, so just effectively ensure that the sealing between upper shell 2 and lower shell 3 between the flange of stainless steel protection cover 3e and the first Connection Block 2b.
The lower port inwall of lower support cylindrical shell 3a has the second annular slot, and the 4th Connection Block 3c is positioned at lower support cylindrical shell 3a, and in the second annular slot, card has jump ring 3f, and then restriction the 4th Connection Block 3c slide downward.5th Connection Block 3d junction is positioned at the lower port place of lower support cylindrical shell 3a, 5th Connection Block 3d is fixedly connected with by the 3rd bolt 3g with the 4th Connection Block 3c, in other words, jump ring 3f, between the 5th Connection Block 3d and the 4th Connection Block 3c, thus realizes fixing the 5th Connection Block 3d and the 4th Connection Block 3c.Miscellaneous part can to load in lower support cylindrical shell 3a and to ensure that modular construction maximizes by this structure, has again and assembles advantage more easily.
Base 4 comprises the end overcoat 4a adopting stainless steel to make and the end inner sleeve 4b adopting elastomeric material to make, and end overcoat 4a can bear external force impact, and the distortion of end inner sleeve 4b can balance motor inside and outside differential pressure.As shown in Figure 4, end inner sleeve 4b has the preferential variant part 4b1 inwardly concaved and the sealing outer edge 4b2 with sealing lip, and sealing outer edge 4b2 has bolt hole 4b3.Sealing lip has the first sealing lip 4b4 that the lower flange that overlaps 3e with the 5th Connection Block 3d and stainless steel protection leans, the second sealing lip 4b5 leant with end overcoat 4a and be positioned at the 3rd sealing lip 4b6 at bolt hole 4b3 edge.
End overcoat 4a is connected by the 4th bolt 4c with the 4th Connection Block 3c, and namely the 4th bolt 4c is threaded with the 4th Connection Block 3c through bolt hole 4b3.Tightening the 4th bolt 4c forces sealing lip to be out of shape, and thus effectively ensure that the sealing between base 4 and lower shell 3.
Stator 6 is fixed in cylindrical shell, and stator 6 is coil windings, and stator 6 is positioned at stainless steel cylinder 2a.Rotor 5 is located in stator 6, and stator 6 is permanent magnet, and housing 7 is between rotor 5 and stator 6, and upper end and the second Connection Block 1a of housing 7 are sealedly and fixedly connected, and lower end and the first Connection Block 2b of housing 7 are sealedly and fixedly connected.
One end of rotor 5 is through top cover 1, and mechanical sealing assembly 1b ensures the sealing between rotor 5 and cylindrical shell.The both ends of rotor 5 are all connected by single radial load bearing assembly 10 with cylindrical shell; Specifically, single radial load bearing assembly 10 comprises ceramic jacket 10a in a tubular form and is set in the outer graphite cannula 10b in a tubular form of ceramic jacket 10a.Top cover 1 is fixed with on clutch shaft bearing seat 11, first Connection Block 2b and is fixed with the second bearing pedestal 12.Ceramic jacket 10a is sheathed to be fixed on rotor 5, and two graphite cannula 10b are fixedly connected with the second bearing pedestal 12 with clutch shaft bearing seat 11 respectively.
Clutch shaft bearing seat 11 is embedded between seal receptacle 1b1 and the second Connection Block 1a, in just being fixed by clutch shaft bearing seat 11 when tightening the first bolt 1c on top cover 1.Second bearing pedestal 12 is embedded between the first Connection Block 2b and the 3rd Connection Block 3b, in just being fixed by the second bearing pedestal 12 when tightening the second bolt 8 on first Connection Block 2b.Clutch shaft bearing seat 11 and the second bearing pedestal 12 fixedly make full use of cylindrical shell self structure, have simplified structure and simplify the advantages such as assembly process.
The lower surface of rotor 5 is connected by uniaxially load bearings assembly 13 with between cylindrical shell; Specifically, uniaxially load bearings assembly 13 is positioned at lower shell 3, and uniaxially load bearings assembly 13 comprises the upper thrust block 13a and the lower thrust block 13b that be connected interior with lower shell 3 that are fixedly connected with the lower end of rotor 5; The upper surface of lower thrust block 13b is fixed with polylith ceramic block 13c, and the lower surface of upper thrust block 13a is fixed with polylith graphite block 13d.
Guide pipe 14 is provided with in lower support cylindrical shell 3a, guide pipe 14 is fixed on cylindrical shell by the second bolt 8, the sidewall of guide pipe 14 has many gathering sill 14a axially offered along it, be all inserted with a guide post 15 in each gathering sill 14a, guide post 15 penetrates lower thrust block 13b.
The upper end of rotor 5 is fixed with on preventing and alters lower position block 16, clutch shaft bearing seat 11 is fixed with anti-on alter on corresponding anti-of lower position block 16 and alter upper limit position block 17, the upper surface of altering lower position block 16 on anti-is provided with porcelain ring 18, the lower surface of altering lower position block 16 on anti-is fixed with graphite circle 19, between porcelain ring 18 and graphite circle 19, leaves 2 ~ 5 ㎜ gaps.
4th Connection Block 3c has been threaded adjustment screw 20, and adjustment screw 20 embeds lower thrust block 13b and is mating spherical surfaces, and this structure improves connective stability between lower thrust block 13b and cylindrical shell effectively.Can regulate gap between porcelain ring 18 and graphite circle 19 by screwing adjustment screw 20, in other words, when motor being adjusted to startup by screwing adjustment screw 20, shake is in minimum state.Adjustment screw 20 is also connected with locking nut 21, locking nut 21 is fixed on the 4th Connection Block 3c by trip bolt 22, in other words, after motor status is adjusted to the right place, adjustment screw 20 adopts locking nut 21 locked, locking nut 21 adopts trip bolt 22 fixing dead, and then the problem thoroughly avoided adjustment screw 20 to be shifted and cause optimum state to lose efficacy.
Claims (8)
1. a well motor for submerged pump, comprise cylindrical shell, rotor (5) and stator (6), stator (6) is fixed in cylindrical shell, rotor (5) is located in stator (6), one end of rotor (5) passes cylindrical shell, it is characterized in that, the both ends of described rotor (5) are all connected by single radial load bearing assembly (10) with cylindrical shell; The lower surface of rotor (5) is connected by uniaxially load bearings assembly (13) with between cylindrical shell; The upper end of rotor (5) is fixed with on preventing and alters lower position block (16), cylindrical shell is fixed with anti-on alter on corresponding anti-of lower position block (16) and alter upper limit position block (17), alter between lower position block (16) on altering upper limit position block (17) on anti-and preventing and there is gap.
2. well motor for submerged pump according to claim 1, is characterized in that, described gap is 2 ~ 5 ㎜.
3. well motor for submerged pump according to claim 1 and 2, it is characterized in that, described anti-on alter lower position block (16) upper surface be provided with porcelain ring (18), the lower surface of altering lower position block (16) on anti-is fixed with graphite circle (19).
4. well motor for submerged pump according to claim 1 and 2, it is characterized in that, described single radial load bearing assembly (10) comprises ceramic jacket (10a) in a tubular form and is set in ceramic jacket (10a) graphite cannula (10b) in a tubular form outward.
5. well motor for submerged pump according to claim 1 and 2, it is characterized in that, described uniaxially load bearings assembly (13) comprises the upper thrust block (13a) and the lower thrust block (13b) that be connected interior with lower shell (3) that are fixedly connected with the lower end of rotor (5); The upper surface of lower thrust block (13b) is fixed with polylith ceramic block (13c), and the lower surface of upper thrust block (13a) is fixed with polylith graphite block (13d).
6. well motor for submerged pump according to claim 5, it is characterized in that, described cylindrical shell internal fixtion has guide pipe (14), the sidewall of guide pipe (14) has many gathering sills (14a) axially offered along it, all be inserted with a guide post (15) in each gathering sill (14a), guide post (15) penetrates lower thrust block (13b); Adjustment screw that cylindrical shell has been threaded (20), adjustment screw (20) is connected with lower thrust block (13b).
7. well motor for submerged pump according to claim 6, is characterized in that, described adjustment screw (20) embeds lower thrust block (13b), mating spherical surfaces between adjustment screw (20) and lower thrust block (13b).
8. well motor for submerged pump according to claim 6, it is characterized in that, described adjustment screw (20) is connected with locking nut (21), locking nut (21) is fixed on cylindrical shell by trip bolt (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433396.3A CN104967240A (en) | 2015-07-22 | 2015-07-22 | Submersible pump motor for well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433396.3A CN104967240A (en) | 2015-07-22 | 2015-07-22 | Submersible pump motor for well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104967240A true CN104967240A (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510433396.3A Pending CN104967240A (en) | 2015-07-22 | 2015-07-22 | Submersible pump motor for well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104967240A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641063A (en) * | 2016-08-25 | 2017-05-10 | 江门市宇鼎五金制品有限公司 | Dinner plate buffer |
| CN111503004A (en) * | 2020-04-24 | 2020-08-07 | 浙江浙水工贸有限公司 | Motor limit structure of multi-stage pump |
| CN111503009A (en) * | 2020-04-24 | 2020-08-07 | 浙江浙水工贸有限公司 | High-lift shielding type permanent magnet multistage pump and control method thereof |
| CN111503008A (en) * | 2020-04-24 | 2020-08-07 | 浙江浙水工贸有限公司 | Amphibious shielded permanent magnet high-speed multistage pump |
| CN111697783A (en) * | 2020-06-22 | 2020-09-22 | 深圳市吉胜华力科技有限公司 | Controller built-in magnesium alloy shell submersible pump permanent magnet synchronous motor |
| CN113014029A (en) * | 2021-03-05 | 2021-06-22 | 浙江浙水工贸有限公司 | Shielding water-cooled permanent magnet pump motor for high-speed well |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102868249A (en) * | 2012-10-15 | 2013-01-09 | 浙江东音泵业股份有限公司 | Submersible motor for well |
| CN202914356U (en) * | 2012-11-19 | 2013-05-01 | 浙江东音泵业股份有限公司 | Anti-channeling device of well-purpose immersible pump |
| CN202931081U (en) * | 2012-10-15 | 2013-05-08 | 浙江东音泵业股份有限公司 | Diving generator inner chamber pressure balancing device for well |
| CN204741361U (en) * | 2015-07-22 | 2015-11-04 | 赵颖 | Well is with water pump motor that dives |
-
2015
- 2015-07-22 CN CN201510433396.3A patent/CN104967240A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868249A (en) * | 2012-10-15 | 2013-01-09 | 浙江东音泵业股份有限公司 | Submersible motor for well |
| CN202931081U (en) * | 2012-10-15 | 2013-05-08 | 浙江东音泵业股份有限公司 | Diving generator inner chamber pressure balancing device for well |
| CN202914356U (en) * | 2012-11-19 | 2013-05-01 | 浙江东音泵业股份有限公司 | Anti-channeling device of well-purpose immersible pump |
| CN204741361U (en) * | 2015-07-22 | 2015-11-04 | 赵颖 | Well is with water pump motor that dives |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641063A (en) * | 2016-08-25 | 2017-05-10 | 江门市宇鼎五金制品有限公司 | Dinner plate buffer |
| CN106641063B (en) * | 2016-08-25 | 2019-10-18 | 江门市宇鼎五金制品有限公司 | Service plate buffer |
| CN111503004A (en) * | 2020-04-24 | 2020-08-07 | 浙江浙水工贸有限公司 | Motor limit structure of multi-stage pump |
| CN111503009A (en) * | 2020-04-24 | 2020-08-07 | 浙江浙水工贸有限公司 | High-lift shielding type permanent magnet multistage pump and control method thereof |
| CN111503008A (en) * | 2020-04-24 | 2020-08-07 | 浙江浙水工贸有限公司 | Amphibious shielded permanent magnet high-speed multistage pump |
| CN111503008B (en) * | 2020-04-24 | 2022-03-15 | 浙江浙水工贸有限公司 | Amphibious shielded permanent magnet high-speed multistage pump |
| CN111503004B (en) * | 2020-04-24 | 2022-03-29 | 浙江浙水工贸有限公司 | Motor limit structure of multi-stage pump |
| CN111697783A (en) * | 2020-06-22 | 2020-09-22 | 深圳市吉胜华力科技有限公司 | Controller built-in magnesium alloy shell submersible pump permanent magnet synchronous motor |
| CN113014029A (en) * | 2021-03-05 | 2021-06-22 | 浙江浙水工贸有限公司 | Shielding water-cooled permanent magnet pump motor for high-speed well |
| CN113014029B (en) * | 2021-03-05 | 2021-09-14 | 浙江浙水工贸有限公司 | Shielding water-cooled permanent magnet pump motor for high-speed well |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151007 |
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| RJ01 | Rejection of invention patent application after publication |