CN201031800Y - Submerged pump - Google Patents

Submerged pump Download PDF

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Publication number
CN201031800Y
CN201031800Y CNU2007201085267U CN200720108526U CN201031800Y CN 201031800 Y CN201031800 Y CN 201031800Y CN U2007201085267 U CNU2007201085267 U CN U2007201085267U CN 200720108526 U CN200720108526 U CN 200720108526U CN 201031800 Y CN201031800 Y CN 201031800Y
Authority
CN
China
Prior art keywords
shaft
pump
motor
motor shaft
oil
Prior art date
Application number
CNU2007201085267U
Other languages
Chinese (zh)
Inventor
周建斌
Original Assignee
周建斌
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 周建斌 filed Critical 周建斌
Priority to CNU2007201085267U priority Critical patent/CN201031800Y/en
Application granted granted Critical
Publication of CN201031800Y publication Critical patent/CN201031800Y/en

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Abstract

The utility model relates a sewage submersible pump which is applied to sewage disposal, including a motor, a pump body, an impeller positioned on a pump shaft and driven by a motor shaft, and a sealing assembly of the motor shaft which is the same rotating shaft with the pump shaft, that is, the pump shaft is the motor shaft. The impeller is fixed on the lateral end of the motor shaft. The motor shaft and the pump shaft are the same rotating shaft, so the utility model has a compact structure, a convenient installation and usage and a steady operation. Moreover an oil cylinder is positioned between the motor and the pump body. The sealing assembly with a double end sealing structure is arranged in the oil cylinder. The utility model uses the machine oil in the oil cylinder to cool a bearing and the sealing assembly and has a good cooling effect, thereby increasing the service life of the bearing and the sealing assembly and the wok efficiency of the submersible pump, as well as guaranteeing that the sealing assembly is not easy to be worn by the hard particles in the sewage, effectively preventing liquid from penetrating in the motor cavity and improving the service life of the submersible pump.

Description

A kind of submersible pump

Technical field

The utility model relates to a kind of submersible pump, is meant a kind of blowdown submerged pump that is applicable to sewage treatment especially.

Background technique

All kinds of water pumps that use in the prior art, the motor that is complementary that most of and professional electrical machinery plant produces carries out supporting, because the pump housing and motor respectively establish one's own system, when supporting use, often brings inconvenience to installation because of size disunity or architectural difference.As the patent No. be: 97217986.0, the mandate publication number is: CN 2308748, a kind of submersible pump is disclosed, it is made up of motor and pump housing two-part, motor is fixedly mounted on the pump housing, pump shaft and motor shaft are concentric shafts, are connected by coupling between pump shaft and the motor shaft, and impeller is installed on the pump shaft.But the structural type of this pump housing and motor split, assembly is more, and concentricity requirement is difficult to guarantee, pump whole higher, center of gravity is also higher, influences the operation stability of submersible pump.

In addition, submersible pump is to be immersed in the Special Pump of working in the water, cause working efficiency to reduce for the heating that reduces motor shaft black box position, generally the black box position is arranged on high hydraulic pressure end in the pump housing, so that utilize formed internal water to circulate the coolant seal assembly.Yet, when this submersible pump is used to extract sewage, more particularly contain the sewage of part suspension grit, this submersible pump can there are the following problems: the grit of black box in sewage impact and friction under be easy to wearing and tearing, cause submersible pump to leak, premature failure.Black box between submersible pump parts and the motor component is the key of submersible pump, and the sealing effect of black box will directly influence the reliability of motor.

Summary of the invention

The utility model provides a kind of simple and reasonable for structure, easy to install in order to solve the deficiency that above-mentioned prior art exists, good seal performance, and cooling effect is superior, stable blowdown submerged pump.

For achieving the above object, the utility model adopts following scheme: a kind of submersible pump, include motor, the pump housing, be installed on the pump shaft and by the black box of shaft-driven impeller of motor and motor shaft, described motor shaft and pump shaft are same rotating shaft, motor shaft is pump shaft, and impeller is fixedly mounted on the motor shaft outboard end.

The utility model further is set to: be connected with the oil cylinder of being made up of cylinder body and cylinder cap between the described motor and the pump housing, it is indoor that the black box of motor shaft is installed in the sealing oil of oil cylinder, and the indoor machinery oil that is perfused with of sealing oil.

Described motor shaft black box adopts the double seals structure, and it is set on the motor shaft, and an end is installed in the groove on the cylinder body, and the other end is installed in the groove on the cylinder cap.

The Oil sealing assembly of oil cylinder is installed on the end face of the described cylinder cap outside.

The beneficial effects of the utility model are: the utility model is compared with original technology, and adopting motor shaft and pump shaft is same turning shaft structure form, and impeller is directly installed on the motor shaft, compact structure, easy to install, operate steadily; And between the motor and the pump housing, be connected with oil cylinder, the black box of motor shaft is arranged in the oil cylinder, adopt the double seals structure, and Oil sealing assembly is set on cylinder cap, utilize in-oil cylinder machinery oil that bearing and black box are cooled off, good cooling results, both increased the working life of bearing and black box, improved the working efficiency of submersible pump, guaranteed that again the hard particles in the sewage is difficult for black box is produced wearing and tearing, prevent that effectively liquid from permeating in motor cavity, improved the working life of submersible pump.

Below in conjunction with embodiment and accompanying drawing the utility model is further specified.

Description of drawings

Fig. 1 is the utility model example structure schematic representation.

Among the figure: 1, motor 11, motor shaft 12, black box 13, casing

14, cover 15, stator 16, rotor

2, the pump housing 21, impeller 22, water intake 23, water outlet

3, oil cylinder 31, cylinder body 311, groove 32, cylinder cap

321, groove 33, grease chamber 34, machinery oil 35, oil inlet hole

36, bolt 37, Oil sealing assembly

Embodiment

As shown in Figure 1, the utility model embodiment adopts a kind of submersible pump, include the black box 12 of motor 1, the pump housing 2, impeller 21 and motor shaft 11, wherein motor 1 is made up of casing 13, cover 14, motor shaft 11 and the stator 15 and the rotors 16 that are arranged in the casing 13; The motor shaft 11 of motor 1 and pump shaft are same rotating shaft, and motor shaft 11 is pump shaft; Offer water intake 22 and water outlet 23 on the pump housing 2; Impeller 21 is arranged in the pump housing 2, and is connected on motor shaft 11 outboard ends.

The utility model is embodiment further be set to, and is connected with the oil cylinder of being made up of cylinder body 31 and cylinder cap 32 3 between the described motor 1 and the pump housing 2, and wherein cylinder body 31 is connected with motor 1 casing 13, and cylinder cap 32 is connected with the pump housing 2; The black box 12 of motor shaft 11 is installed in the sealing grease chamber 33 of oil cylinder 3, and sealing grease chamber 33 is by being perfused with machinery oil 34 in the oil inlet hole 35, and with bolt 36 sealings.Described motor shaft 11 black boies 12 adopt the double seals structures, and it is set on the motor shaft 11, and an end is installed in the groove 311 on the cylinder body 31, and the other end is installed in the groove 321 on the cylinder cap 32.The Oil sealing assembly 37 of oil cylinder 3 is installed on described cylinder cap 32 outside end faces.

The utility model working principle: after the utility model is opened, motor shaft 11 impeller 21 are high speed rotary motion together, force pre-subpunch to be filled in impeller 21 interlobate liquid and follow the blade rotation, under the effect of inertial centrifugal force, liquid is done radial motion from impeller 21 centers to periphery.Liquid obtains energy in the movement process of impeller 21 of flowing through, static energy increases, and flow velocity increases.The liquid speed in the pump housing 2 that penetrates is slack-off gradually, and part is converted to static energy, the last drainage pipe that is connected on the water outlet 23 that tangentially flows into, and discharge tube flows out.When liquid gets rid of to periphery from impeller 21 centers, be formed centrally low pressure area in the impeller 21, under the effect of the total potential energy difference of storage tank liquid level and impeller 21 centers, cause liquid to flow in the pump housing 2 through water intake 22, rely on the continuous running of impeller 21, liquid just is inhaled into continuously and discharges.

Claims (4)

1. submersible pump, include motor, the pump housing, be installed on the pump shaft and by the black box of shaft-driven impeller of motor and motor shaft, it is characterized in that: described motor shaft and pump shaft are same rotating shaft, and motor shaft is pump shaft, and impeller is fixedly mounted on the motor shaft outboard end.
2. submersible pump according to claim 1 is characterized in that: be connected with the oil cylinder of being made up of cylinder body and cylinder cap between the described motor and the pump housing, it is indoor that the black box of motor shaft is installed in the sealing oil of oil cylinder, and the indoor machinery oil that is perfused with of sealing oil.
3. submersible pump according to claim 2 is characterized in that: described motor shaft black box adopts the double seals structure, and it is set on the motor shaft, and an end is installed in the groove on the cylinder body, and the other end is installed in the groove on the cylinder cap.
4. according to claim 2 or 3 described submersible pumps, it is characterized in that: the Oil sealing assembly that oil cylinder is installed on the end face of the described cylinder cap outside.
CNU2007201085267U 2007-04-24 2007-04-24 Submerged pump CN201031800Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201085267U CN201031800Y (en) 2007-04-24 2007-04-24 Submerged pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007201085267U CN201031800Y (en) 2007-04-24 2007-04-24 Submerged pump

Publications (1)

Publication Number Publication Date
CN201031800Y true CN201031800Y (en) 2008-03-05

Family

ID=39163692

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007201085267U CN201031800Y (en) 2007-04-24 2007-04-24 Submerged pump

Country Status (1)

Country Link
CN (1) CN201031800Y (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102474151A (en) * 2009-09-05 2012-05-23 格伦德福斯管理联合股份公司 Rotor can
CN103742423A (en) * 2013-11-28 2014-04-23 成都欧浦特控制阀门有限公司 Submerged sewage pump with improved mechanical abrasion resistance
CN104154037A (en) * 2014-08-08 2014-11-19 苏州通力电气有限公司 Heavy sewage pump with support legs
CN105757007A (en) * 2014-07-31 2016-07-13 丁永新 Jet vacuum pump using submersible pump
CN105846589A (en) * 2016-06-03 2016-08-10 利欧集团浙江泵业有限公司 Waterproof device for pump motor
CN105927597A (en) * 2014-07-31 2016-09-07 丁永新 Jet flow vacuum pump using submersible pump
CN107171478A (en) * 2017-07-04 2017-09-15 哈尔滨理工大学 A kind of mechanical seal structure of submersible motor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102474151A (en) * 2009-09-05 2012-05-23 格伦德福斯管理联合股份公司 Rotor can
CN102474151B (en) * 2009-09-05 2017-08-18 格伦德福斯管理联合股份公司 Rotor shielding sleeve
CN103742423A (en) * 2013-11-28 2014-04-23 成都欧浦特控制阀门有限公司 Submerged sewage pump with improved mechanical abrasion resistance
CN105757007A (en) * 2014-07-31 2016-07-13 丁永新 Jet vacuum pump using submersible pump
CN105927597A (en) * 2014-07-31 2016-09-07 丁永新 Jet flow vacuum pump using submersible pump
CN104154037A (en) * 2014-08-08 2014-11-19 苏州通力电气有限公司 Heavy sewage pump with support legs
CN105846589A (en) * 2016-06-03 2016-08-10 利欧集团浙江泵业有限公司 Waterproof device for pump motor
CN107171478A (en) * 2017-07-04 2017-09-15 哈尔滨理工大学 A kind of mechanical seal structure of submersible motor

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080305

Termination date: 20100424

C17 Cessation of patent right