CN2614282Y

CN2614282Y - Water-lubricated bearing diving electrical pump

Info

Publication number: CN2614282Y
Application number: CN 03220538
Authority: CN
Inventors: 史志华
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-18
Filing date: 2003-03-18
Publication date: 2004-05-05
Anticipated expiration: 2013-03-18

Abstract

The utility model relates to a submersible pump, in particular to a water-lubricated bearing submersible pump. The upper portion and the lower portion of a rotor impeller shaft are respectively provided with an up-down water-lubricated bearing, an inner steel jacket, a graphite jacket and a bearing frame are respectively arranged from the interior to the exterior of the rotor impeller shaft, the bottom of the bearing frame is connected with the base of a casing, the upper portion of the bearing frame is coated by a ring rejection sand device, the lower portion of the lower bearing is provided with a gland and a thrust water-lubricated bearing, clean water is filled around the water-lubricated bearing and the thrust water-lubricated bearing, the clean water only lubricates the water-lubricated bearing and can not destroy the whole lubricating system, and with the rejection sand device for isolating sediment, thereby the water-lubricated bearing submersible pump is very durable, the utility model can avoid the bad seal malpractice of the roller bearing of the submersible pump and prolong the service life of the submersible pump greatly.

Description

The water lubriucated bearing Submerged Motor Pumps

Affiliated technical field

The utility model relates to a kind of Submerged Motor Pumps, especially a kind of water lubriucated bearing Submerged Motor Pumps.

Background technique

At present, the rotating part of submersible pump is universal rolling bearing structure, and the drawback of this structure is that sealing is relatively poor, especially under water the more environment of silt, in case seal failure, silt enter in the bearing, not only can cause damage of bearings, and, also can cause rotor to sweep thorax, cause motor to burn out, whole motor is damaged.Also there is not good solution at present.

Summary of the invention

In order to overcome the bad drawback of present Submerged Motor Pumps rolling bearing sealability, the utility model provides a kind of Submerged Motor Pumps of water lubriucated bearing, this electric pump can overcome the bad drawback of rolling type bearing seal of Submerged Motor Pumps, can prolong the working life of Submerged Motor Pumps greatly.

The technological scheme that its technical problem that solves the utility model adopts is: on impeller of rotor axle 1, each is installed on one, submerged lubrication bearing 2,5, be close to impeller of rotor axle 1 on, an interior steel bushing 15 respectively is housed, 12, steel bushing 15 in being close to, 12, sliding fit is installed a graphite cannula 16,13, graphite cannula 16,13 skin is fitted with,

lower bearing bracket

17,14, fixedly connected with housing base 7 in lower bearing bracket 14 bottoms, on,

lower bearing bracket

17,14 external diameters are fixedly connected with rotor set 3, adorn the sand throwing apparatus 18 of a loop overlapping shape in the upper lid of last water lubriucated bearing frame 17, its internal diameter is tightly fixed with impeller of rotor axle 1 and is connected; In the bottom of lower bearing bracket 14, be close to gland 11 and thrust water lubriucated bearing 6 are installed,, be discoidal Thrust ring 10, graphite annulus 9 and pushing frame 8 from top to bottom, pushing frame 8 is fixedlyed connected with base 7.

Its beneficial effect is: adopt such scheme, can make the utility model can avoid the drawback of Submerged Motor Pumps rolling type bearing seal poor-performing, can prolong the working life of Submerged Motor Pumps greatly.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples;

Accompanying drawing is a structure principle chart of the present utility model.

Among the figure, 1. the impeller of rotor axle is 2. gone up water lubriucated bearing, 3. rotor set, 4. stator pack, 5. submerged lubrication bearing, 6. water lubricating thrust bearing, 7. base, 8. pushing frame, 9. graphite annulus, 10. go up throw-out collar, 11. glands, 12. interior steel bushings, 13. graphite cannula, 14. lower bearing brackets, 15. interior steel bushings, 16. graphite cannula, 17. upper bearing (metal) framves, 18. sand throwing apparatus.

Embodiment

In the drawings, lubricating layer of the present utility model is wear-resisting graphite cannula 16,13 and graphite annulus 9, around water lubriucated bearing 2,5 and thrust water lubriucated bearing 6, be filled with the water of cleaning, it not only can play lubrication, and can keep balance with the hydraulic pressure in the external world, make extraneous silt water be difficult for entering, therefore can not damage whole lubrication system, there is sand throwing apparatus 18 to isolate silt again, thereby makes this pump very durable.

In the drawings, the metalwork of this upper and lower water lubriucated bearing 2,5 and water lubricating thrust bearing 6, its material is stainless steel part or plated item.

In the drawings, graphite cannula 13,16 and graphite annulus 9 its materials can be used graphite, also can use alloyed copper.The new new design of this practicality is applicable to the 380V power supply.

Claims

1. water lubriucated bearing Submerged Motor Pumps, it is characterized in that: on impeller of rotor axle 1, each is installed on one, submerged lubrication bearing 2,5, be close to impeller of rotor axle 1 on, an interior steel bushing 15 respectively is housed, 12, steel bushing 15 in being close to, 12, sliding fit is installed a graphite cannula 16,13, graphite cannula 16,13 skin is fitted with, lower bearing bracket 17,14, fixedly connected with housing base 7 in lower bearing bracket 14 bottoms, metal (upper frame 17,14 external diameters are fixedly connected with rotor 4, adorn the sand throwing apparatus 18 of a loop overlapping shape in the upper lid of last water lubriucated bearing frame 17, and its internal diameter is tightly fixed with impeller of rotor axle 1 and is connected; In the bottom of lower bearing bracket 14, be close to gland 11 and thrust water lubriucated bearing 6 are installed,, be discoidal Thrust ring 10, graphite annulus 9 and pushing frame 8 from top to bottom, pushing frame 8 is fixedlyed connected with base 7.

2. a kind of water lubriucated bearing Submerged Motor Pumps according to claim 1 is characterized in that: the water that is filled with cleaning around upper and lower water lubriucated bearing 2,5 and water lubricating thrust bearing 6.