CN203702582U - Small-sized submersible electric pump - Google Patents
Small-sized submersible electric pump Download PDFInfo
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- CN203702582U CN203702582U CN201420074280.6U CN201420074280U CN203702582U CN 203702582 U CN203702582 U CN 203702582U CN 201420074280 U CN201420074280 U CN 201420074280U CN 203702582 U CN203702582 U CN 203702582U
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- machine barrel
- small
- bearing support
- electric pump
- oil
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Abstract
The utility model provides a small-sized submersible electric pump, belongs to the technical field of submersible electric pumps, and aims to solve the problem of rising of temperature since heat of the conventional submersible electric pump is converged in a machine barrel and is difficult to dissipate. The small-sized submersible electric pump comprises a machine barrel, wherein a stator, a rotor and a motor shaft are arranged in the inner cavity of the machine barrel; an oil inlet hole is formed in the side wall of the machine barrel; one end of the machine barrel is fixedly connected with a pump cover; the motor shaft extends out of the pump cover; the end of the machine cylinder is fixedly connected with a bearing base; an oil storage cavity is formed between the pump cover and the bearing base; an oil flow hole which communicates the oil storage cavity with the inner cavity of the machine barrel is formed in the bearing base. By adopting the small-sized submersible electric pump, the overall heat dissipating performance can be improved, and the temperature rise is reduced.
Description
Technical field
The utility model belongs to Submerged Motor Pumps technical field, relates to a kind of small-sized diving electric pump.
Background technique
Small-sized diving electric pump is all the pull the plug water pump of work of the motor of a kind of pump housing, impeller and drives impeller, there are deep-well use and work surface with two kinds, deep-well is powered to motor by the cable stretching in well with small-sized diving electric pump, remove transmission long axis from, thereby compact structure, lightweight, installation, use and convenient transfer, there iing power supply area to have the trend that replaces borehole shaft drivenpump, but inapplicable to the large well of sand content and non-transformer area.The motor that small-sized diving electric pump is used has the types such as dry type, half dry type, oil-filled type and wet type.First three is planted all needs sealing and manufactures installation precision and have relatively high expectations, thereby agricultural deep-well small-sized diving electric pump adopts wet type motor conventionally, its staor winding adopts water-fast insulated conductor or pour into a mould synthetic resin in stator winding end and groove, it is little that water enters motor internal impact, sealing configuration can be simplified greatly, only requires sand control.Small-sized diving electric pump model is various, specify according to the National Standard of the People's Republic of China of small-sized diving electric pump (GB/T25409-2010), the model of small-sized diving electric pump is made up of Chinese Pinyin capitalization and Arabic numerals etc., wherein Chinese Pinyin capitalization represents single phase motor as D, Q represents small-sized diving electric pump, X represents pump (down-pump type) below motor, B represents half built-in type electric pump, P represents shielded motor etc., according to different functions by different monograms, comparatively common are on the market at present QDX, QJ, QY etc., wherein QDX series small Submerged Motor Pumps is because volume is little, lightweight, being specially adapted to down-hole, vast rural area draws water, farmland row irrigate, treegarden irrigation, household water, in the pump case of current QDX small-sized diving electric pump, be provided with shoe cream room, for cooling, this shoe cream room and pump case inner chamber are isolated.
As Chinese invention patent application (application number: 200910099960.7) disclose a kind of small-sized diving electric pump, comprise motor and water pump, described motor and water pump coaxially arrange, described water pump is by diffuser, water suction loudspeaker and impeller composition, described diffuser is provided with grease chamber, in this grease chamber, be provided with thrust-bearing, described thrust-bearing upper, under be respectively arranged with the mechanical seal of San road and second mechanical seal, the arranged outside of bottom, described grease chamber has first mechanical seal, impeller is arranged on the lower end of rotating shaft, the back shroud of described impeller is provided with multiple through holes, organic envelope seat is also set between described the first mechanical seal and impeller, between described machine envelope seat and impeller, be provided with the mechanical seal of Si road, on diffuser between described machine envelope seat and grease chamber, be provided with water inlet and air outlet hole, the horizontal position of described water inlet is lower than the horizontal position of air outlet hole, like this can prolonged mechanical working life of sealing, improve the reliability of sealing system.But because submersible pump grease chamber and the motor of QDX series are isolated, the heat that motor produces collects in machine barrel, is difficult to distribute, cause temperature to raise.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of small-sized diving electric pump, and this small-sized diving electric pump can increase integral heat sink, reduces temperature rise.
The purpose of this utility model can realize by following technical proposal: a kind of small-sized diving electric pump, comprise machine barrel, described machine barrel inner chamber is provided with stator, rotor and motor shaft, on described machine barrel sidewall, offer oil inlet hole, end, one end at machine barrel is fixed with pump cover, above-mentioned motor shaft stretches out pump cover, it is characterized in that, described machine barrel is also fixed with a bearing support at this end, between described pump cover and bearing support, form a shoe cream room, on described bearing support, offer the oil-through hole of a connection shoe cream room and machine barrel inner chamber.
This submersible pump is QDX series small Submerged Motor Pumps, stator and rotor are arranged on one end of machine barrel, the other end has cavity, oil inlet hole is opened on the sidewall of this cavity, the shoe cream room that pump cover and bearing support form is also positioned at this cavity, while shoe cream room being carried out to oiling by oil inlet hole, fluid can enter by oil-through hole the cavity of machine barrel, thereby make shoe cream room and machine barrel inner chamber all be full of fluid, now fluid accounts for 30%～40% of the whole cavity volume of machine barrel, stator the turn round heat that produce relative to rotor can be delivered in barrel wall and dispel the heat rapidly by fluid, therefore integral heat sink performance is good, simultaneously due to machine barrel inner chamber and shoe cream room all oil-filled, therefore this is between the two without carrying out mechanical seal, reduce component cost.
In above-mentioned small-sized diving electric pump, described bearing support is round platform tubular, and arranges with machine barrel concentric, and the edge, one end that bearing support diameter is larger is connected mutually with machine tube inner wall, and one end that bearing support diameter is less has end wall, and above-mentioned motor shaft is through end wall.Bearing support and machine barrel are one-body molded, and the inner chamber of round platform tubular is shoe cream room, and the edge that its diameter is larger and machine barrel end edge are along one-body molded.
In above-mentioned small-sized diving electric pump, axially radially consistent with bearing support of described oil-through hole, described oil inlet hole and the setting of oil-through hole concentric are provided with plunger on oil inlet hole.Oil inlet hole and oil-through hole concentric arrange, and in the time of oiling, fluid is entering in machine barrel inner chamber and can take advantage of a situation and enter shoe cream room, and plunger screw is connected in oil inlet hole, for the sealing to oil inlet hole.
In above-mentioned small-sized diving electric pump, one end that described bearing support diameter is less circumferentially has a convex annular edge, between described convex annular edge and motor shaft, bearing is installed.Bearing outer ring drive fit is connected in convex annular edge, motor shaft and bearing inner race drive fit, and bearing is played a supporting role to motor shaft.
In above-mentioned small-sized diving electric pump, the equal wound motor axle in the two side of described pump cover offers annular mounting groove, in described mounting groove, is equipped with mechanical seal ring, and described mechanical seal ring is fixed by jump ring.Mechanical seal ring lays respectively at the inside and outside both sides of pump cover, circumferentially fixes by mounting groove, carries out axial restraint by jump ring, and mechanical seal ring carries out mechanical seal to shoe cream room, avoids oil liquid leakage.
Compared with prior art, this small-sized diving electric pump has the following advantages:
1, because shoe cream room and machine barrel inner chamber are all filled with fluid, the heat in machine barrel can be delivered in barrel wall and dispel the heat rapidly by fluid, and therefore motor radiating performance is good, and electric machine temperature rise is low, thereby has extended electric pump working life.
2, due to machine barrel inner chamber and shoe cream room all oil-filled, therefore this,, between the two without carrying out mechanical seal, has reduced component cost, and has ensured the lubricants capacity of mechanical seal.
3, because oil inlet hole and oil-through hole concentric arrange, in the time of oiling, fluid is entering in machine barrel inner chamber and can take advantage of a situation and enter shoe cream room, and oiling efficiency is high.
Brief description of the drawings
Fig. 1 is the structure sectional view of this small-sized diving electric pump.
Fig. 2 is the structure enlarged view at A place in Fig. 1.
In figure, 1, machine barrel; 11, stator; 12, rotor; 13, motor shaft; 14, oil inlet hole; 2, pump cover; 21, mounting groove; 3, bearing support; 31, oil-through hole; 32, convex annular edge; 4, shoe cream room; 5, bearing; 6, plunger; 7, mechanical seal ring; 8, jump ring.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, a kind of small-sized diving electric pump, refer in particular to QDX series small Submerged Motor Pumps, comprise machine barrel 1, machine barrel 1 inner chamber is provided with stator 11, rotor 12 and motor shaft 13, stator 11 and rotor 12 are arranged on one end of machine barrel 1, the other end has cavity, machine barrel 1 offers oil inlet hole 14 on the sidewall of cavity, end, one end at machine barrel 1 is fixed with pump cover 2, motor shaft 13 stretches out pump cover 2, machine barrel 1 is also fixed with a bearing support 3 at this end, between pump cover 2 and bearing support 3, form a shoe cream room 4, on bearing support 3, offer the oil-through hole 31 of a connection shoe cream room 4 and machine barrel 1 inner chamber.While shoe cream room 4 being carried out to oiling by oil inlet hole 14, fluid can enter by oil-through hole 31 cavity of machine barrel 1, thereby make shoe cream room 4 and machine barrel 1 inner chamber all be full of fluid, now fluid accounts for 30%～40% of machine barrel 1 whole cavity volume, the heat that stator 11 running relative to rotor 12 produces can be delivered to rapidly on machine barrel 1 wall and be dispelled the heat by fluid, therefore integral heat sink performance is good, simultaneously due to machine barrel 1 inner chamber and shoe cream room 4 all oil-filled, therefore this,, between the two without carrying out mechanical seal, reduces component cost.
Specifically, shown in Fig. 2, bearing support 3 is round platform tubular, and with machine barrel 1 concentric setting, the edge, one end that bearing support 3 diameters are larger is connected mutually with machine barrel 1 inwall, and one end that bearing support 3 diameters are less has end wall, and motor shaft 13 is through end wall, the inner chamber of bearing support 3 round platform tubulars is shoe cream room 4, and the edge that its diameter is larger and machine barrel 1 end edge are along one-body molded.Oil-through hole 31 axially and bearing support 3 radially consistent, oil inlet hole 14 and oil-through hole 31 concentric settings, in the time of oiling, fluid is entering in machine barrel 1 inner chamber and can take advantage of a situation and enter shoe cream room 4, on oil inlet hole 14, be provided with plunger 6, plunger 6 is threaded in oil inlet hole 14, for the sealing to oil inlet hole 14.One end that bearing support 3 diameters are less circumferentially has a convex annular along 32, convex annular along 32 and motor shaft 13 between bearing 5 is installed, bearing 5 outer ring drive fits are connected in convex annular along in 32, motor shaft 13 and bearing 5 inner ring drive fits, and bearing 5 is played a supporting role to motor shaft 13.The equal wound motor axle 13 in two side of pump cover 2 offers annular mounting groove 21, in mounting groove 21, be equipped with mechanical seal ring 7, mechanical seal ring 7 is fixing by jump ring 8, mechanical seal ring 7 lays respectively at the inside and outside both sides of pump cover 2, circumferentially fix by mounting groove 21, carry out axial restraint by jump ring 8, mechanical seal ring 7 carries out mechanical seal to shoe cream room 4, avoids oil liquid leakage.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used herein machine barrel 1, stator 11, rotor 12, motor shaft 13, oil inlet hole 14, pump cover 2, mounting groove 21, bearing support 3, oil-through hole 31, convex annular along 32, the term such as shoe cream room 4, bearing 5, plunger 6, mechanical seal ring 7, jump ring 8, do not get rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (5)
1. a small-sized diving electric pump, comprise machine barrel (1), described machine barrel (1) inner chamber is provided with stator (11), rotor (12) and motor shaft (13), on described machine barrel (1) sidewall, offer oil inlet hole (14), be fixed with pump cover (2) in the end, one end of machine barrel (1), above-mentioned motor shaft (13) stretches out pump cover (2), it is characterized in that, described machine barrel (1) is also fixed with a bearing support (3) at this end, between described pump cover (2) and bearing support (3), form a shoe cream room (4), on described bearing support (3), offer the oil-through hole (31) of a connection shoe cream room (4) and machine barrel (1) inner chamber.
2. small-sized diving electric pump according to claim 1, it is characterized in that, described bearing support (3) is round platform tubular, and with machine barrel (1) concentric setting, the edge, one end that bearing support (3) diameter is larger is connected mutually with machine barrel (1) inwall, the less one end of bearing support (3) diameter has end wall, and above-mentioned motor shaft (13) is through end wall.
3. small-sized diving electric pump according to claim 2, it is characterized in that, axially radially consistent with bearing support (3) of described oil-through hole (31), described oil inlet hole (14) and oil-through hole (31) concentric setting are provided with plunger (6) on oil inlet hole (14).
4. according to the small-sized diving electric pump described in claim 2 or 3, it is characterized in that, one end that described bearing support (3) diameter is less circumferentially has a convex annular along (32), and described convex annular is provided with bearing (5) between (32) and motor shaft (13).
5. small-sized diving electric pump according to claim 4, it is characterized in that, the equal wound motor axle in two side (13) of described pump cover (2) offers annular mounting groove (21), in described mounting groove (21), be equipped with mechanical seal ring (7), described mechanical seal ring (7) is fixing by jump ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420074280.6U CN203702582U (en) | 2014-02-21 | 2014-02-21 | Small-sized submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420074280.6U CN203702582U (en) | 2014-02-21 | 2014-02-21 | Small-sized submersible electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702582U true CN203702582U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420074280.6U Expired - Fee Related CN203702582U (en) | 2014-02-21 | 2014-02-21 | Small-sized submersible electric pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN203702582U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088817A (en) * | 2014-07-18 | 2014-10-08 | 南京南蓝环保设备制造有限公司 | Dry installation submersible sewage pump |
| CN114233647A (en) * | 2021-12-15 | 2022-03-25 | 浙江省机电设计研究院有限公司 | Water pump and production process thereof |
-
2014
- 2014-02-21 CN CN201420074280.6U patent/CN203702582U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088817A (en) * | 2014-07-18 | 2014-10-08 | 南京南蓝环保设备制造有限公司 | Dry installation submersible sewage pump |
| CN114233647A (en) * | 2021-12-15 | 2022-03-25 | 浙江省机电设计研究院有限公司 | Water pump and production process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200225 Address after: On the south side of the town of Boulder Highway in Wenling city of Taizhou City, Zhejiang province 317525 Patentee after: Zhejiang Dongyin Technology Co.,Ltd. Address before: On the south side of the town of Boulder Highway in Wenling city of Taizhou City, Zhejiang province 317525 Patentee before: ZHEJIANG DOYIN PUMP INDUSTRY CO.,LTD. |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Taizhou Doyin Pump Industry Co.,Ltd. Assignor: Zhejiang Dongyin Technology Co.,Ltd. Contract record no.: X2021330000111 Denomination of utility model: A small submersible electric pump Granted publication date: 20140709 License type: Common License Record date: 20210823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 |