CN201934327U - Submerged axial-flow electric pump of planetary reduction gearbox with self-circulating cooling function - Google Patents

Submerged axial-flow electric pump of planetary reduction gearbox with self-circulating cooling function Download PDF

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Publication number
CN201934327U
CN201934327U CN2011200351122U CN201120035112U CN201934327U CN 201934327 U CN201934327 U CN 201934327U CN 2011200351122 U CN2011200351122 U CN 2011200351122U CN 201120035112 U CN201120035112 U CN 201120035112U CN 201934327 U CN201934327 U CN 201934327U
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CN
China
Prior art keywords
gear
impeller
box
cover
electric pump
Prior art date
Application number
CN2011200351122U
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Chinese (zh)
Inventor
金雷
朱庆龙
单丽
朱庆师
吴风
Original Assignee
合肥三益江海泵业有限公司
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Application filed by 合肥三益江海泵业有限公司 filed Critical 合肥三益江海泵业有限公司
Priority to CN2011200351122U priority Critical patent/CN201934327U/en
Application granted granted Critical
Publication of CN201934327U publication Critical patent/CN201934327U/en

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Abstract

The utility model relates to a submerged axial-flow electric pump of a planetary reduction gearbox with a self-circulating cooling function, which has the improvements that more than three blades are uniformly distributed on the outer periphery of a motor toothed sleeve to form an impeller; the axial outer side of the impeller is provided with an annular impeller cover plate, the outer periphery of the impeller cover plate is connected with a gear box, and a cavity between the inner periphery of the impeller cover plate and the motor toothed sleeve is an impeller chamber; more than ten outlets are uniformly distributed on the side wall of the gear box on the outer side face of the impeller cover plate; more than ten inlets are uniformly distributed on the side wall of the gear box, corresponding to a water pump shaft sleeve; and circulating oil pipes are connected between the inlets and the outlets. The structure provided by the utility model is used for a 1150kW large-sized submerged electric pump with a planetary reducer, the temperature rise of an oil chamber of the 1150kW large-sized submerged electric pump is not larger than 5K, and the working environment of the bearing and a gear inside the oil chamber are favorable; and in addition, a mechanical seal on a motor end is favorably lubricated and cooled.

Description

Diving axial flow electric pump with self-loopa cooling function planetary gear reduction box

Technical field

The utility model belongs to the Submerged Motor Pumps technical field, is specifically related to have the diving axial flow electric pump of speed reducer.

Background technique

The planetary pinion driver has been widely used in every field such as engineering machinery, mining machinery, metallurgical machinery, Hoisting Machinery, light industry and machinery, petrochemical industry, lathe, robot, automobile, aircraft, steamer as a kind of gear drive.It is compared with common gear drive has outstanding feature: can carry out power dividing when transferring power; Input shaft and output shaft are on same axis.So the planetary pinion transmission is used for substituting the ordinary gear transmission by people, as the retarder in the various machine driven systems, speed increaser and speed change gear.

Water pump has the requirement of strictness to the product of rotating speed and impeller diameter when considering cavitation performance.The synchronous speed n=of asynchronous motor , wherein f is that frequency (Hz), p are numbers of pole-pairs.By formula as can be seen: number of pole-pairs is big more, and rotating speed is low more.And the motor volume that number of pole-pairs is big, rotating speed is low is bigger, and just the diameter of motor is bigger.Electromotor diameter is the bulb ratio with the axial-flow pump impeller diameter ratio, bulb is bigger than more, the also corresponding increase of the divergence loss of axial-flow pump all is good to the divergence loss that reduces axial-flow pump and the volume of motor than (also promptly reducing the diameter of motor) so reduce bulb.After submersible axial flow pump adopts plane table thermoconductivity meter, submersible motor becomes high-speed electric expreess locomotive by slowspeed machine, and motor diameter reduces greatly, and submersible motor is passed to water pump through planetary gear reduction box with power, correspondingly the bulb of Submerged Motor Pumps reduces greatly than also, thereby reduces the divergence loss of water pump.Simultaneously, the volume of submersible motor reduces, and metal wastage significantly reduces, and has reduced cost, economizes on resources.

The cooling of submersible axial flow pump plane table thermoconductivity meter gear-box commonly used mainly relies on the pumping working medium of gear-box outside that heat is taken away.Along with the increase of pump power, gear-box only relies on the pumping current that heat is taken away the requirement that can not satisfy temperature rise because of the heat that gear movement produces also will increase, and needs to adopt certain measure cooling gear-box.

Cylinder class part heat output , wherein For thermal conductivity, For heat diffusion area, Be temperature gradient.From formula as can be seen: heat output Proportional with thermal conductivity, heat diffusion area, temperature gradient.After material, the thickness of part were selected, thermal conductivity was certain, can not change, and therefore wanted to increase heat output, increased Be that heat diffusion area is unique approach.On the other hand, heat also can transmit by convection type, changes the flow direction of lubricant oil artificially, makes it opposite with the pumped medium flow direction, can accelerate the transmission of gear-box heat.

Summary of the invention

In order to solve increase along with submersible axial flow pump power, the cooling problem of gear-box, the utility model provides a kind of diving axial flow electric pump with self-loopa cooling function planetary gear reduction box.

Organization plan of the present utility model is as follows:

Diving axial flow electric pump with self-loopa cooling function planetary gear reduction box comprises gear-box, sun gear, planet wheel and ring gear, and the gear end of described sun gear cooperates with motor tooth cover, and the motor tooth interlocks then motor output shaft; The other end of sun gear is connecting planet wheel, and the ring gear that cooperates with planet wheel is located on the gear-box; Planet wheel is connecting the water pump cover by pivoted arm, and water pump interlocks then water pump spindle, and improvement is: the periphery of described motor tooth cover is laid with the blade more than three, forms impeller; The axial outside of impeller is provided with the impeller cover of ring-type, and the periphery of impeller cover is connecting gear-box, and the cavity between impeller cover inner circumference and the motor tooth cover is a blade wheel chamber; Be laid with ten with upper outlet on the gear-box sidewall of impeller cover outer side surface; Be laid with ten with upper inlet on the gear-box sidewall corresponding with the water pump axle sleeve; Connecting circulating pipe between described import and the outlet.

The periphery of described motor tooth cover is laid with four blades, forms impeller.

Be laid with 16 outlets on the gear-box sidewall of described impeller cover outer side surface; Be laid with 16 imports on the gear-box sidewall corresponding with the water pump axle sleeve.

Useful technique effect of the present utility model embodies in the following areas:

1, the utility model structure is used for 1150kW band plane table thermoconductivity meter large-scale electric underwater pump, the temperature rise≤50K of its grease chamber, and the working environment of grease chamber's inner bearing, gear is good;

2, motor side mechanical seal obtains good lubricated and cooling.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the A-A sectional view of Fig. 1.

Embodiment

Referring to Fig. 1 and Fig. 2, the diving axial flow electric pump with self-loopa cooling function planetary gear reduction box comprises gear-box, sun gear 5, planet wheel 7 and ring gear 9, and the gear end of sun gear 5 cooperates with motor tooth cover 4, and motor tooth cover 4 is connecting motor output shaft 3; The other end of sun gear 5 and planet wheel 7 engagements, the ring gear 9 that meshes with planet wheel 7 is fixedly installed on the gear-box; Planet wheel 7 is connecting the water pump cover by pivoted arm 6, and water pump interlocks then water pump spindle 8.Improvement is: the periphery of motor tooth cover 4 is uniform to be installed with four blades, form impeller, the outside of impeller is installed with the impeller cover 1 of ring-type, the periphery of impeller cover 1 is fixed by bolts on the gear-box inwall, and the cavity between the inner circumference of impeller cover 1 and the motor tooth cover 4 is a blade wheel chamber; Uniformly on the gear-box sidewall of impeller cover 1 outer side surface offer 16 outlets; Uniformly on the gear-box sidewall corresponding offer 16 imports with the water pump axle sleeve; Be communicated with by circulating pipe 10 between 16 imports and 16 outlets.

Working principle: submersible motor is given sun gear 5 by key, motor tooth cover 4 with transmission of power, sun gear 5 drives planet wheel 7 and rotates, planet wheel is not only around sun gear 5 revolution, and itself carries out rotation, thereby give pivoted arm 6 with transmission of power, pivoted arm 6 passes through the tooth cover of pivoted arm 6 again with the transmission of power feed pump shaft.The cooling of said gear case mainly relies on the pumping working medium of gear-box outside that heat is taken away.Along with the increase of pump power, gear-box only relies on the pumping current that heat is taken away the requirement that can not satisfy temperature rise because of the heat that gear movement produces also will increase, and needs to adopt certain measure cooling gear-box.

Cylinder class part heat output , wherein For thermal conductivity, For heat diffusion area, Be temperature gradient.From formula as can be seen: heat output Proportional with thermal conductivity, heat diffusion area, temperature gradient.After material, the thickness of part were selected, thermal conductivity was certain, can not change, and therefore wanted to increase heat output, increased Be that heat diffusion area is unique approach.On the other hand, heat also can transmit by convection type, change the flow direction of lubricant oil artificially, make it opposite with the pumped medium flow direction, as seen from Figure 1, the lubricant oil in the gear-box is under the effect of impeller 2 blades, inlet side by blade flows to the outlet limit, the circulating pipe 10 of flowing through then returns gear-box at last, forms a complete circulation.Impeller 2 is imported and exported limits and is had certain pressure reduction, because the existence of pressure reduction makes thin oil in the gear-box along certain direction, carries out shuttling movement.Oil pipe 10 has not only increased heat transfer area, and the moving direction of thin oil is opposite with the flow direction of pumped medium in the steel pipe, has accelerated the transmission of heat.

Claims (3)

1. have the diving axial flow electric pump of self-loopa cooling function planetary gear reduction box, comprise gear-box, sun gear, planet wheel and ring gear, the gear end of described sun gear cooperates with motor tooth cover, and the motor tooth interlocks then motor output shaft; The other end of sun gear is connecting planet wheel, and the ring gear that cooperates with planet wheel is located on the gear-box; Planet wheel is connecting the water pump cover by pivoted arm, and water pump interlocks then water pump spindle, it is characterized in that: the periphery of described motor tooth cover is laid with the blade more than three, forms impeller; The axial outside of impeller is provided with the impeller cover of ring-type, and the periphery of impeller cover is connecting gear-box, and the cavity between impeller cover inner circumference and the motor tooth cover is a blade wheel chamber; Be laid with ten with upper outlet on the gear-box sidewall of impeller cover outer side surface; Be laid with ten with upper inlet on the gear-box sidewall corresponding with the water pump axle sleeve; Connecting circulating pipe between described import and the outlet.
2. the diving axial flow electric pump with self-loopa cooling function planetary gear reduction box according to claim 1 is characterized in that: the periphery of described motor tooth cover is laid with four blades, forms impeller.
3. the diving axial flow electric pump with self-loopa cooling function planetary gear reduction box according to claim 1 is characterized in that: be laid with 16 outlets on the gear-box sidewall of described impeller cover outer side surface; Be laid with 16 imports on the gear-box sidewall corresponding with the water pump axle sleeve.
CN2011200351122U 2011-02-10 2011-02-10 Submerged axial-flow electric pump of planetary reduction gearbox with self-circulating cooling function CN201934327U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200351122U CN201934327U (en) 2011-02-10 2011-02-10 Submerged axial-flow electric pump of planetary reduction gearbox with self-circulating cooling function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200351122U CN201934327U (en) 2011-02-10 2011-02-10 Submerged axial-flow electric pump of planetary reduction gearbox with self-circulating cooling function

Publications (1)

Publication Number Publication Date
CN201934327U true CN201934327U (en) 2011-08-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200351122U CN201934327U (en) 2011-02-10 2011-02-10 Submerged axial-flow electric pump of planetary reduction gearbox with self-circulating cooling function

Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966542A (en) * 2011-08-31 2013-03-13 株式会社捷太格特 Electric pump unit
CN104514730A (en) * 2014-12-26 2015-04-15 合肥恒大江海泵业股份有限公司 Submersible electric pump
CN109016317A (en) * 2018-07-18 2018-12-18 曲发生 A kind of cooling back installation for EPS molding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966542A (en) * 2011-08-31 2013-03-13 株式会社捷太格特 Electric pump unit
CN104514730A (en) * 2014-12-26 2015-04-15 合肥恒大江海泵业股份有限公司 Submersible electric pump
CN109016317A (en) * 2018-07-18 2018-12-18 曲发生 A kind of cooling back installation for EPS molding machine

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CP03 Change of name, title or address

Address after: Changfeng Shuangfeng Economic Development Zone, Hefei City, Anhui province 231131

Patentee after: Hefei Hengda Jianghai Pump Industry Co., Ltd.

Address before: Changfeng Shuangfeng Economic Development Zone, Hefei City, Anhui province 231131 Jin Road No. 2

Patentee before: Hefei Sanyi Jianghai Pump Industry Co., Ltd.

C56 Change in the name or address of the patentee

Owner name: HEFEI HENGDA JIANGHAI PUMP CO., LTD.

Free format text: FORMER NAME: HEFEI SANYI JIANGHAI PI\UMP INDUSTRY CO., LTD.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110817

Termination date: 20170210

CF01 Termination of patent right due to non-payment of annual fee