CN105871103A - Submersible motor provided with sedimentation type sand-proof structure - Google Patents
Submersible motor provided with sedimentation type sand-proof structure Download PDFInfo
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- CN105871103A CN105871103A CN201610343209.7A CN201610343209A CN105871103A CN 105871103 A CN105871103 A CN 105871103A CN 201610343209 A CN201610343209 A CN 201610343209A CN 105871103 A CN105871103 A CN 105871103A
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- sand
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- discharge passage
- chamber
- sand discharge
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/132—Submersible electric motors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Frames (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention relates to a submersible motor provided with a sedimentation type sand-proof structure. The submersible motor comprises a rotary shaft as well as an oil chamber and a sand throwing sleeve arranged on the rotary shaft in a sleeving manner, wherein a first mechanical seal is arranged on the inner side of the oil chamber. The submersible motor is characterized in that a sand discharge groove is formed in the upper surface of the oil chamber and covered with a cover plate of the oil chamber, a sand discharge channel is formed, the lower surface of the sand throwing sleeve is tightly attached to the cover plate of the oil chamber, a sand accumulating cavity is formed among the sand throwing sleeve, the cover plate of the oil chamber and the rotary shaft, the inner end inlet of the sand discharge channel is communicated with the sand accumulating cavity, and an outer end outlet of the sand discharge channel is formed in the outer wall of the oil chamber. The submersible motor provided with the sedimentation type sand-proof structure has two improved schemes: for one scheme, the sand discharge channel is arranged, for the other scheme, both the sand discharge channel and a second mechanical seal are arranged. No matter which scheme is selected, sediment entering the sand throwing sleeve can be discharged through the sand discharge channel, the use reliability of the motor is improved, and the service life of the motor is prolonged.
Description
Technical field
The present invention relates to a kind of submersible motor, particularly relate to a kind of submersible motor being provided with decanter type sand-prevention structure.
Background technology
The working environment of submersible motor determines it needs possess good sand prevention performance, and the quality of sand prevention performance directly affects the service life of submersible motor.Traditional sand-prevention structure typically has two classes: the first kind is to get rid of husky structure, i.e., grease chamber installs sand prevention seat and gets rid of husky set, get rid of husky being nested with on machine shaft, get rid of husky set to rotate with rotating shaft and thrown away by major part silt near machine shaft, reach dustproof effect, but the silt that could not throw away on a small quantity will enter grease chamber along machine shaft, in making motor, mechanical seal is worn, and causes motor to damage because intaking and enter sand;Equations of The Second Kind is mechanical seal structure, it is arranged on the rotating ring in the mechanical seal inside grease chamber and stationary ring cooperatively forms friction pair, the contact surface of friction pair is in close contact, silt is difficult to enter rotating ring and the contact surface of stationary ring, there is preferable dustproof effect, but the accumulation along with silt, it will causing rotating ring and stationary ring abrasion, silt enters motor by mechanical seal and makes motor damage.The maximum shortcoming of this two classes sand-prevention structure be all annular seal space be closed cavity, easily gather silt, the silt final breakseal structure of accumulation, enter motor and make motor damage.
Summary of the invention
It is an object of the invention to solve the problems referred to above of prior art existence and provide a kind of submersible motor being provided with decanter type sand-prevention structure, use two kinds of improvement projects, a kind of scheme is to arrange sand discharge passage;First scheme is both to have arranged sand discharge passage, arranges again the second mechanical seal;No matter which kind of scheme, can get rid of entrance the silt in husky set and run through sand discharge passage and discharge, improves motor dependability and motor service life;And sand discharge passage is decanter type structure, silt is discharged grease chamber by the centrifugal force and the gravity that make full use of silt.
The above-mentioned technical purpose of the present invention mainly solves by the following technical programs: be provided with the submersible motor of decanter type sand-prevention structure, including rotating shaft, the grease chamber being nested with in rotating shaft is overlapped with getting rid of sand, the inner side of described grease chamber arranges the first mechanical seal, it is characterized in that described grease chamber upper surface arranges sediment ejection trough, the cover plate of described grease chamber covers formation sand discharge passage on sediment ejection trough, the described lower surface getting rid of husky set is close to oil chamber cover board, make to get rid of husky set, sand chamber is formed between oil chamber cover board and rotating shaft, the interior end entrance of described sand discharge passage connects with sand chamber, outer end outlet is arranged on the outer wall of grease chamber.
Get rid of husky set and can throw away major part silt, but a small amount of silt can be accumulated in and get rid of between husky set and rotating shaft, As time goes on, the silt of accumulation makes to get rid of husky set and rotating shaft is worn and torn, and then silt enters sand chamber through the space got rid of husky set and rotating shaft, if the silt of sand intracavity is discharged the most in time, the first mechanical seal inside grease chamber will be destroyed.The technical program is to arrange sand discharge passage at grease chamber's upper surface, the silt in sand chamber is guided to quickly pass through the outside discharge to grease chamber of sand discharge passage, prevent from piling up silt in sand chamber, greatly reduce sediment settlement and be accumulated in the probability of the first mechanical seal, largely reduce the abrasion of the first mechanical seal, improve the service life of the first mechanical seal, and then improve the service life of motor.Owing to this sand-prevention structure has the function of sand discharge, it will be process the most slowly that silt enters motor internal through grease chamber, be fully able to meet the sand prevention performance requirement of submersible motor.
As improving further and supplementing technique scheme, the present invention uses following technical measures: sand discharge passage is decanter type passage, is gradually lowered height outward from interior.Use decanter type structure, the highest the closer to rotating shaft channel position, the lowest further away from rotating shaft channel position, the silt of sand intracavity rotarily drives lower being centrifuged in rotating shaft and throws away, there is again gravity, the silt of sand intracavity can be discharged rapidly by decanter type passage simultaneously, slow down silt and enters the process in motor cavity, well meet submersible motor sand prevention performance requirement, improve the service life of submersible motor.
Described grease chamber upper surface forms the cable connector chamber of indent, and described cable connector chamber is the outer section of sand discharge passage, and described cable connector chamber has opening at grease chamber's sidewall, and described opening is positioned at the lower edge of described oil chamber cover board outer wall.Horizontal cable connector chamber is provided with longitudinal cable penetration hole, cable penetration arranges cable plug in hole, being formed between cable plug and grease chamber's lid and seal, the silt entering cable connector chamber avoids cable plug, and the outlet (i.e. the opening of grease chamber's sidewall) from outer end is discharged.
The lower surface of described sand discharge passage is stepped, and the inner segment of described sand discharge passage at least has two-stage ladder, and the outer section of described sand discharge passage constitutes final stage ladder.This technical scheme is the more excellent scheme of one of decanter type passage, and certainly, sand discharge passage is that smooth subsidence style is arranged, and is also feasible.
The inner segment of described sand discharge passage in cross-sectional direction by interior trapezoidal in narrowed width outward.Trapezoidal inner segment sand discharge passage is for making silt form rapid effect, advantageously in rapid sand discharge.
The outer section of described sand discharge passage is annular by the inside and outside outer fan broadened in width in cross-sectional direction.The rapid silt flow formed at trapezoidal inner segment sand discharge passage passes through section position outside the fan annular extended out, and forms the effect of release of pressure, more promotes that silt flow is rapid, the rapidest sand discharge.
Such scheme is to use the mode of sand discharge passage to coordinate to get rid of husky set formation sand-prevention structure, improves dustproof effect, slows down silt and enter the first mechanical seal and destroy the degree of the first mechanical seal, is conducive to improving the service life of motor.And scheme cited below is to set up the second mechanical seal on the basis of sand discharge passage again, second mechanical seal is arranged on the outside of grease chamber for sealing pivot, still there is the silt of residual to enter grease chamber's permanent being accumulated in of inner chamber after preventing from being discharged by sand discharge passage through the silt getting rid of husky set and destroy the first mechanical seal near the first mechanical seal, be conducive to improving the service life of motor.
Concrete technical scheme is as described below:
Described grease chamber and get rid of between husky set, the second mechanical seal is set, described second mechanical seal periphery arranges sleeve, described sleeve upper end is got rid of husky set lower end and is sealed with described and coordinate, described sleeve lower end seals with oil chamber cover board and coordinates, forming sand chamber between described second mechanical seal and described sleeve, the interior end entrance of described sand discharge passage connects with sand chamber.Pulling the plug during the motor work related to due to the technical program, for antirust corrosion-proof, sleeve uses rustless steel sleeve.
Due to the existence of rustless steel sleeve, in outside silt motor cavity to be entered, being first subjected to get rid of the stop of husky set, get rid of husky set and follow the rotation of machine shaft and rotate, under the influence of centrifugal force, major part is thrown out of near the silt of machine shaft;Secondly, fraction silt enters the second mechanical seal chamber along axle, and by the second mechanical seal, silt is all present in sand chamber, the most of silt being made entrance sand chamber by decanter type sand discharge passage is discharged rapidly, largely reduces the abrasion to the second mechanical seal;Finally, even if still there being very small amount silt the second mechanical seal to be produced abrasion and goes successively to the inner chamber of grease chamber along rotating shaft, these very small amount silts are stopped by the first mechanical seal, motor damage is made to enter motor internal after the first mechanical seal is caused abrasion, it is process the most slowly that motor causes the process of damage, therefore, the sand-prevention structure with the second mechanical seal and decanter type sand discharge passage enables motor to fully meet diving sand prevention performance requirement.
Described oil chamber cover board includes the first undertaking ring being arranged at middle part, it is arranged at described first and accepts the second undertaking ring that ring is peripheral, it is arranged at described second and accepts the outer T-Ring that ring is peripheral, described second accepts ring relative to described outer T-Ring epirelief, it is recessed that described first undertaking ring accepts ring relative to described second, the lower end of described second mechanical seal is pressed on described first and accepts on ring, described sleeve lower end is pressed on described second and accepts on ring, and the interior end entrance of described sand discharge passage is arranged on the described second interior edge accepting ring.Respective outer side edges second mechanical seal of oil chamber cover board, sleeve and get rid of husky set and make sand chamber be formed to close cavity, in order to the silt closed in cavity is discharged rapidly, second undertaking ring of oil chamber cover board arranges the interior end entrance of sand discharge passage, makes sand discharge passage connect for sand discharge with sand chamber.
Described sleeve upper end has infolding anchor ring, lower end has outer ring face, the described outer, lower end getting rid of husky set has the lower folding face of cylinder, the described lower folding face of cylinder is buckled in the upper end of described sleeve, making to get rid of described in described infolding anchor ring support bottom husky set, described outer ring face bearing is on the second undertaking ring of described oil chamber cover board.Infolding anchor ring and outer ring face are used for increasing support area, improve Assembly stability, are also beneficial to improve sealing effectiveness.The lower folding face of cylinder is buckled in the upper end of sleeve, is formed and holds effect tightly, prevents sleeve upper end from radially wobbling.Sleeve lower end is fixed on grease chamber's upper wall by connector.
Described outer T-Ring is provided with cable external socket, and described cable external socket is arranged corresponding to the outer section of sand discharge passage, and the outer of described outer T-Ring has lower hem.The outer end outlet of sand discharge passage is arranged on lower hem root edge position.The outer end outlet of sand discharge passage need not be additionally processed for lower hem.Have only to that grease chamber is processed forms sidewall and there is the cable connector chamber of opening, convenient processing, be also convenient for assembling.
The invention have the benefit that 1, have two kinds of improvement projects, a kind of scheme is to arrange sand discharge passage;First scheme is both to have arranged sand discharge passage, arranges again the second mechanical seal.2, no matter which kind of scheme, can get rid of entrance the silt in husky set and run through sand discharge passage and discharge, improves motor dependability and motor service life.3, sand discharge passage is decanter type structure, and silt is discharged grease chamber by the centrifugal force and the gravity that make full use of silt.4, sand discharge passage leading portion is the fan that trapezoidal, back segment the are flared type annular of closing in type, silt flow forms rapid effect, it is possible to get rid of grease chamber the most rapidly.
Accompanying drawing explanation
Fig. 1 is a kind of broken section structural representation of the present invention.
Fig. 2 is a kind of detonation configuration schematic diagram of the present invention.
Fig. 3 is the structural representation of grease chamber in the present invention.
Fig. 4 is the structural representation of oil chamber cover board in the present invention.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, technical scheme is described in further detail.
Embodiment 1 :Being provided with the submersible motor of decanter type sand-prevention structure, as it is shown in figure 1, include rotating shaft 1, the grease chamber 2 being nested with in rotating shaft 1 overlaps 3 with getting rid of sand, and the inner side of described grease chamber 2 arranges the first mechanical seal 4.Described grease chamber 2 upper surface arranges sediment ejection trough, described oil chamber cover board 5 covers and forms in sand discharge passage 21(Fig. 1 the passage of arrow logo at label 21 sensing on sediment ejection trough), the described lower surface getting rid of husky set 3 is close to oil chamber cover board 5, make to get rid of husky set 3, between oil chamber cover board 5 and rotating shaft 1, form sand chamber 6, the interior end entrance 22 of described sand discharge passage 21 connects with sand chamber 6, and outer end outlet 23 is arranged on the outer wall of grease chamber 2.
Present embodiment discloses and mechanical seal is only set inside grease chamber, outside grease chamber, be not provided with the scheme of mechanical seal.
Get rid of husky set 3 and can throw away major part silt, but a small amount of silt can be accumulated in and get rid of between husky set 3 and rotating shaft 1, As time goes on, the silt of accumulation makes to get rid of husky set 3 and rotating shaft 1 is worn and torn, and then silt enters sand chamber 6 through the space got rid of husky set 3 and rotating shaft 1, if the silt in sand chamber 6 is discharged the most in time, the first mechanical seal 4 inside grease chamber will be destroyed.The technical program is to arrange sand discharge passage 21 at grease chamber 2 upper surface, the silt in sand chamber 6 is guided to quickly pass through sand discharge passage 21 outside discharge to grease chamber 2, prevent from piling up silt in sand chamber 6, greatly reduce sediment settlement and be accumulated in the probability of the first mechanical seal 4, largely reduce the abrasion of the first mechanical seal 4, improve the service life of the first mechanical seal 4, and then improve the service life of motor.Owing to this sand-prevention structure has the function of sand discharge, it will be process the most slowly that silt enters motor internal through grease chamber, be fully able to meet the sand prevention performance requirement of submersible motor.
In the present invention, sand discharge passage 21 is decanter type passage, is gradually lowered height outward from interior.Use decanter type structure, the highest the closer to rotating shaft channel position, the lowest further away from rotating shaft channel position, the silt of sand intracavity rotarily drives lower being centrifuged in rotating shaft and throws away, there is again gravity, the silt of sand intracavity can be discharged rapidly by decanter type passage simultaneously, slow down silt and enters the process in motor cavity, well meet submersible motor sand prevention performance requirement, improve the service life of submersible motor.
Described grease chamber 2 upper surface forms the cable connector chamber 24 of indent, and described cable connector chamber 24 is the outer section of sand discharge passage 21, and described cable connector chamber 24 has opening at grease chamber's sidewall, and described opening is positioned at the lower edge of described oil chamber cover board 5 outer wall.Horizontal cable connector chamber is provided with longitudinal cable penetration hole 25, cable plug 7 is set in cable penetration hole 25, being formed by cover body between cable plug and grease chamber's lid and seal, the silt entering cable connector chamber avoids cable plug 7, exports the 23(i.e. opening of grease chamber's sidewall from outer end) discharge.
The lower surface of described sand discharge passage is stepped, and the inner segment 26 of described sand discharge passage at least has two-stage ladder, and the outer section (i.e. cable connector chamber 24) of described sand discharge passage constitutes final stage ladder.This technical scheme is the more excellent scheme of one of decanter type passage, and certainly, sand discharge passage is that smooth subsidence style is arranged, and is also feasible.
The inner segment 26 of described sand discharge passage in cross-sectional direction by interior trapezoidal in narrowed width outward.Trapezoidal inner segment sand discharge passage is for making silt form rapid effect, advantageously in rapid sand discharge.
The outer section (i.e. cable connector chamber 24) of described sand discharge passage is annular by the inside and outside outer fan broadened in width in cross-sectional direction.The rapid silt flow formed at trapezoidal inner segment sand discharge passage passes through section position outside the fan annular extended out, and forms the effect of release of pressure, more promotes that silt flow is rapid, the rapidest sand discharge.
The scheme of the present embodiment is to use the mode of sand discharge passage to coordinate to get rid of husky set formation sand-prevention structure, improves dustproof effect, slows down silt and enter the first mechanical seal and destroy the degree of the first mechanical seal, is conducive to improving the service life of motor.
Embodiment 2 :In the present embodiment, on the basis of being additionally arranged sand discharge passage, set up the second mechanical seal 8 again, second mechanical seal 8 is arranged on the outside of grease chamber 2 for sealing pivot, still there is the silt of residual to enter permanent being accumulated in of grease chamber's inner chamber after preventing from being discharged by sand discharge passage through the silt getting rid of husky set 3 and destroy the first mechanical seal 4 near first mechanical seal 4, be conducive to improving the service life of motor.
About the technical scheme of sand discharge passage 21 with embodiment 1, the knot technical scheme about the second mechanical seal 8 is described in detail below:
Described grease chamber 2 and get rid of between husky set 3, second mechanical seal 8 is set, described second mechanical seal 8 periphery arranges sleeve 9, described sleeve 9 upper end is got rid of husky set 3 lower ends and is sealed with described and coordinate, described sleeve 9 lower end seals with oil chamber cover board 5 and coordinates, forming sand chamber 6 between described second mechanical seal 8 and described sleeve 9, the interior end entrance of described sand discharge passage 21 connects with sand chamber.
Pulling the plug during the motor work related to due to the technical program, for antirust corrosion-proof, sleeve uses rustless steel sleeve.Due to the existence of rustless steel sleeve 9, in outside silt motor cavity to be entered, being first subjected to get rid of the stop of husky set 3, get rid of husky set 3 and follow the rotation of machine shaft 1 and rotate, under the influence of centrifugal force, major part is thrown out of near the silt of machine shaft;Secondly, fraction silt enters the second mechanical seal chamber along axle, and by the second mechanical seal 8, silt is all present in sand chamber, the most of silt being made entrance sand chamber by decanter type sand discharge passage 21 is discharged rapidly, largely reduces the abrasion to the second mechanical seal;Finally, even if still there being very small amount silt the second mechanical seal 8 to be produced abrasion and goes successively to the inner chamber of grease chamber along rotating shaft, these very small amount silts are by the stop of the first mechanical seal 4, motor damage is made to enter motor internal after the first mechanical seal is caused abrasion, it is process the most slowly that motor causes the process of damage, therefore, the sand-prevention structure with the second mechanical seal 8 and decanter type sand discharge passage 21 enables motor to fully meet diving sand prevention performance requirement.
Described oil chamber cover board 5 includes the first undertaking ring 51 being arranged at middle part, it is arranged at described first and accepts the second undertaking ring 52 that ring is peripheral, it is arranged at described second and accepts the outer T-Ring 53 that ring is peripheral, described second accepts ring 52 relative to described outer T-Ring 53 epirelief, it is recessed that described first undertaking ring 51 accepts ring 52 relative to described second, the stationary ring of described second mechanical seal 8 is pressed on described first and accepts on ring 51, described sleeve 9 lower end is pressed on described second and accepts on ring 52, and the interior end entrance 22 of described sand discharge passage 21 is arranged on the described second interior edge accepting ring 52.Respective outer side edges second mechanical seal 8 of oil chamber cover board 5, sleeve 9 and get rid of husky set 3 and make sand chamber be formed to close cavity, in order to the silt closed in cavity is discharged rapidly, second undertaking ring 52 of oil chamber cover board 5 arranges the interior end entrance 22 of sand discharge passage, makes sand discharge passage connect for sand discharge with sand chamber.
Described sleeve 9 upper end has infolding anchor ring 91, lower end has outer ring face 92, the described outer, lower end getting rid of husky set 3 has the lower folding face of cylinder 31, the described lower folding face of cylinder 31 is buckled in the upper end of described sleeve 9, making to get rid of described in described infolding anchor ring 91 support bottom husky set 3, described outer ring face 92 bearing is on the second undertaking ring 52 of described oil chamber cover board.Infolding anchor ring and outer ring face are used for increasing support area, improve Assembly stability, are also beneficial to improve sealing effectiveness.The lower folding face of cylinder is buckled in the upper end of sleeve, is formed and holds effect tightly, prevents sleeve upper end from radially wobbling.Sleeve lower end is fixed on grease chamber's upper wall by connector.
Described outer T-Ring 53 is provided with cable external socket 54, and described cable external socket 54 is arranged corresponding to the outer section 24 of sand discharge passage, and the outer of described outer T-Ring 53 has lower hem 55.The outer end outlet 23 of sand discharge passage 21 is arranged on lower hem 55 root edge position.The outer end outlet of sand discharge passage need not be additionally processed for lower hem 55.Have only to that grease chamber is processed forms sidewall and there is the cable connector chamber 24 of opening, convenient processing, be also convenient for assembling.
As it is shown in figure 1, silt enters motor has two walking routes, a circuit: pass sequentially through along rotating shaft 1 and get rid of husky set the 3, second mechanical seal 8, grease chamber 2 inner chamber, the first mechanical seal 4, eventually enter into motor internal.Article 2 circuit is: passes sequentially through along rotating shaft 1 and gets rid of husky set the 3, second mechanical seal 8, sand discharge passage 21, finally discharges from grease chamber.By technical scheme disclosed in the present embodiment; by getting rid of husky set, major part silt is thrown away; small part silt enters sand chamber 6 along rotating shaft 1; then grease chamber is discharged by sand discharge passage 21; after motor life-time service, using and the silt of minority can be deposited on the first mechanical seal 4 periphery, the abrasion to the first mechanical seal 4 is minimum; protect the normal use of motor greatly, substantially increase motor service life.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention.In the above-described embodiments, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. it is provided with the submersible motor of decanter type sand-prevention structure, including rotating shaft, the grease chamber being nested with in rotating shaft is overlapped with getting rid of sand, the inner side of described grease chamber arranges the first mechanical seal, it is characterized in that described grease chamber upper surface arranges sediment ejection trough, the cover plate of described grease chamber covers formation sand discharge passage on sediment ejection trough, the described lower surface getting rid of husky set is close to oil chamber cover board, make to get rid of husky set, between oil chamber cover board and rotating shaft, form sand chamber, the interior end entrance of described sand discharge passage connects with sand chamber, and outer end outlet is arranged on the outer wall of grease chamber.
The submersible motor being provided with decanter type sand-prevention structure the most according to claim 1, it is characterised in that described sand discharge passage is decanter type passage, is gradually lowered height outward from interior.
The submersible motor being provided with decanter type sand-prevention structure the most according to claim 2, it is characterized in that described grease chamber upper surface forms the cable connector chamber of indent, described cable connector chamber is the outer section of sand discharge passage, described cable connector chamber has opening at grease chamber's sidewall, and described opening is positioned at the lower edge of described oil chamber cover board outer wall.
The submersible motor being provided with decanter type sand-prevention structure the most according to claim 3, it is characterised in that the lower surface of described sand discharge passage is stepped, the inner segment of described sand discharge passage at least has two-stage ladder, and the outer section of described sand discharge passage constitutes final stage ladder.
The submersible motor being provided with decanter type sand-prevention structure the most according to claim 4, it is characterised in that the inner segment of described sand discharge passage in cross-sectional direction by interior trapezoidal in narrowed width outward.
The submersible motor being provided with decanter type sand-prevention structure the most according to claim 5, it is characterised in that the outer section of described sand discharge passage is annular by the inside and outside outer fan broadened in width in cross-sectional direction.
7. according to a described submersible motor being provided with decanter type sand-prevention structure optional in claim 1-6, it is characterized in that described grease chamber and get rid of between husky set, the second mechanical seal is set, described second mechanical seal periphery arranges sleeve, described sleeve upper end is got rid of husky set lower end and is sealed with described and coordinate, described sleeve lower end seals with oil chamber cover board and coordinates, forming sand chamber between described second mechanical seal and described sleeve, the interior end entrance of described sand discharge passage connects with sand chamber.
The submersible motor being provided with decanter type sand-prevention structure the most according to claim 7, it is characterized in that described oil chamber cover board includes being arranged at the first undertaking ring at middle part, it is arranged at described first and accepts the second undertaking ring that ring is peripheral, it is arranged at described second and accepts the outer T-Ring that ring is peripheral, described second accepts ring relative to described outer T-Ring epirelief, it is recessed that described first undertaking ring accepts ring relative to described second, the lower end of described second mechanical seal is pressed on described first and accepts on ring, described sleeve lower end is pressed on described second and accepts on ring, the interior end entrance of described sand discharge passage is arranged on the described second interior edge accepting ring.
The submersible motor being provided with decanter type sand-prevention structure the most according to claim 8, it is characterized in that described sleeve upper end has infolding anchor ring, lower end has outer ring face, the described outer, lower end getting rid of husky set has the lower folding face of cylinder, the described lower folding face of cylinder is buckled in the upper end of described sleeve, making to get rid of described in described infolding anchor ring support bottom husky set, described outer ring face bearing is on the second undertaking ring of described oil chamber cover board.
The submersible motor being provided with decanter type sand-prevention structure the most according to claim 9, it is characterised in that described outer T-Ring is provided with cable external socket, described cable external socket is arranged corresponding to the outer section of sand discharge passage, and the outer of described outer T-Ring has lower hem.
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Cited By (2)
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US20210285249A1 (en) * | 2016-11-30 | 2021-09-16 | Service Industry Solutions, LLC | Pool Cleaning System, Pool Cleaning Device, and Pool Cleaning Transportation Cart |
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CN203722384U (en) * | 2014-02-25 | 2014-07-16 | 太原清徐神州泵业有限公司 | Submersible motor with anti-sediment structure |
EP2924852A1 (en) * | 2014-03-27 | 2015-09-30 | Skf Magnetic Mechatronics | High speed electrical machine with embedded drive |
CN204068501U (en) * | 2014-07-04 | 2014-12-31 | 天津奥特泵业有限责任公司 | A kind ofly be provided with the submersible motor that labyrinth type gets rid of husky loop device |
JP2016048976A (en) * | 2014-08-27 | 2016-04-07 | 東芝三菱電機産業システム株式会社 | Full-closed type rotary electric machine |
CN205610391U (en) * | 2016-05-23 | 2016-09-28 | 新界泵业集团股份有限公司 | Dive motor with subside formula sand prevention structure |
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US20210285249A1 (en) * | 2016-11-30 | 2021-09-16 | Service Industry Solutions, LLC | Pool Cleaning System, Pool Cleaning Device, and Pool Cleaning Transportation Cart |
CN111513058A (en) * | 2020-04-08 | 2020-08-11 | 新疆雷烨防雷科技有限公司 | Anti-blocking type is exempted from to break and is prevented bird thorn off with fingers and thumb |
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Effective date of registration: 20200713 Address after: Wenling City, Taizhou City, Zhejiang Province town of Ocean City 317525 Industrial Zone Patentee after: SHIMGE PUMP (ZHEJIANG) Co.,Ltd. Address before: Wenling City, Taizhou City, Zhejiang Province town of Ocean City 317525 Industrial Zone Patentee before: SHIMGE PUMP INDUSTRY Co.,Ltd. |