CN204692163U - The external sealing configuration of Submerged bittern pump motor - Google Patents
The external sealing configuration of Submerged bittern pump motor Download PDFInfo
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- CN204692163U CN204692163U CN201520373188.4U CN201520373188U CN204692163U CN 204692163 U CN204692163 U CN 204692163U CN 201520373188 U CN201520373188 U CN 201520373188U CN 204692163 U CN204692163 U CN 204692163U
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Abstract
The external sealing configuration of Submerged bittern pump motor, comprises mechanical seal structure, stationary seat, it is characterized in that external mechanical seal structure is arranged in the chamber of upper leading axle bearing, rotor shaft stretches out position beyond motor atrium; Mechanical seal structure: upwards have sealing gasket, stationary seat, spring, mechanical sealing static ring and O type rubber seal in seal cartridge bottom outlet successively, rotor shaft is passed by mechanical seal lining bottom outlet; Mechanical sealing linkage ring staggered relatively and O type rubber seal thereof on mechanical sealing static ring, rotating ring and the stationary ring surface of contact of mechanical seal inlay friction ring.The distinguishing feature of the design: 1. sealing reliability, in macrocyclic operation, sealing state is very stable, and amount of leakage is very little; 2. long service life; 3. friction horsepower consumes little; 4. axle or axle sleeve are substantially not frayed; 5. service cycle is long, and end wear can compensate; 6. good anti-vibration, to the vibration of running shaft, beat and the deflection of axle to Seal cage insensitive etc.
Description
Technical field
The utility model relates to mechanical sealing technology, specifically a kind of external sealing configuration of Submerged bittern pump motor and manufacture method.
Background technique
Existing submersible pump sealing technique adopts oil sealing mostly, namely has outside framework oil seal in running shaft, has the lip-type packing of extension in parcel cross section.Be all liquid inside and outside pump chamber when usual submersible pump uses, and in motor cavity be the clear water injected before using, accidental seal leakage, does not affect operation.Submerged bittern pump is immersed in the submersible pump in the contour corrosive liquids of sylvite bittern, is different from general submersible pump, very high to seal request.What the thrust bearing due to submersible motor was selected is sliding bearing, and pump will have instantaneously when starting alters power, and rotor shaft can be subject to the power of altering to drive upper and lower play, so axially have the amount of altering.Existing submersible pump built-in type mechanical seal form, is shown in Fig. 1, in rotor shaft 5 periphery of motor atrium successively mounting spring 24, mechanical sealing linkage ring 23, mechanical sealing static ring 22 and respective O type rubber seal 25, the sealing gland 21 fixed by screw.Simultaneously also due to the built-in installation of mechanical seal, the stationary ring of mechanical seal is arranged on sealing gland, ensures by O type rubber seal with the sealing of sealing gland.Rotating ring leans on the enclasping force driven rotary of spring and axle, and rotating ring and axle ensure by O type rubber seal, and the wearing and tearing of rotating ring and stationary ring surface of contact compensate by spring.When rotor shaft is altered, rotating ring can not produce displacement by the stop of stationary ring, when altering under rotor shaft, (rotor shaft playback) rotating ring with axle with altering generation displacement at present, will depart from stationary ring, producing and reveal by the surface friction drag of O type rubber seal and rotor shaft.
Summary of the invention
The purpose of this utility model is to provide a kind of external sealing configuration of Submerged bittern pump motor, meets the job requirements of deep-etching liquid environment, extends the working life of submersible pump.
The external sealing configuration of Submerged bittern pump motor of the present utility model, comprises mechanical seal structure, stationary seat, it is characterized in that external mechanical seal structure is arranged in the chamber of upper leading axle bearing, rotor shaft stretches out position beyond motor atrium; Mechanical seal structure: upwards have sealing gasket, stationary seat, spring, mechanical sealing static ring and O type rubber seal in seal cartridge bottom outlet successively, rotor shaft is passed by mechanical seal lining bottom outlet; Mechanical sealing linkage ring staggered relatively and O type rubber seal thereof on mechanical sealing static ring, rotating ring and the stationary ring surface of contact of mechanical seal inlay friction ring.
The distinguishing feature of the design:
In order to ensure that Submerged bittern pump motor normally works under the operating mode of bittern, change sealing configuration into mechanical seal.Feature 1. sealing reliability, in macrocyclic operation, sealing state is very stable, and amount of leakage is very little; 2. long service life; 3. friction horsepower consumes little; 4. axle or axle sleeve are substantially not frayed; 5. service cycle is long, and end wear can compensate; 6. good anti-vibration, to the vibration of running shaft, beat and the deflection of axle to Seal cage insensitive etc.
Be because rotating ring is excessive by the surface friction drag of O type rubber seal and rotor shaft in original built-in type mechanical seal structure, with axle with altering generation displacement at present, depart from stationary ring, there occurs leakage.The present invention program changes external mechanical seal into rotor shaft, sees Fig. 3, and when ensureing rotor shaft upper and lower play, mechanical seal and axle are not subjected to displacement.The stationary ring of mechanical seal is arranged on stationary seat, and ensure by O type rubber seal with the sealing of stationary seat, stationary seat and sealing gasket are screwed on seal cartridge.Static components is first arranged on seal cartridge, then seal cartridge and static components are arranged on motor together; Rotating ring is screwed on axle, and rotating ring and axle ensure by O type rubber seal, and the wearing and tearing of rotating ring and stationary ring surface of contact compensate by spring.When needs electrical machmary maintenance and mechanical seal are safeguarded, change time, as long as the rotating ring of mechanical seal is disassembled, is dismantled by seal cartridge.Convenient to disassembly, not fragile mechanical seal.
The utility model outstanding contributions be mechanical seal structure is arranged in the chamber of upper leading axle bearing, rotor shaft stretches out position beyond motor atrium, and the position relationship of the rotating ring in mechanical seal structure, stationary ring and rotor shaft is exchanged, rotating ring and axle are screwed, displacement can not be produced, the O type rubber seal of stationary ring and the surface friction drag of stationary seat very little, avoid dynamic and static ring depart from.The rotor shaft material of motor is Stainless Acid Resistant Steel 3Cr13, after change structure, eliminates the relative displacement produced between O type rubber seal and rotor shaft, and the axial movement value of rotor shaft is solved by mechanical seal internal adjustment.The hardware material of mechanical seal all uses 316, improves corrosion-resistant grade.
Accompanying drawing explanation
Fig. 1 is the built-in sealing configuration of former Submerged bittern pump motor;
Fig. 2 is the external submersible motor sealing configuration of the design's Submerged bittern pump motor;
Fig. 3 is the seal cartridge installing stationary seat in Fig. 2.
Embodiment
The external sealing configuration of the Submerged bittern pump motor of the design, comprises mechanical seal structure, stationary seat, it is characterized in that external mechanical seal structure is arranged in the chamber of upper leading axle bearing, rotor shaft stretches out position beyond motor atrium; Mechanical seal structure: upwards have sealing gasket 10, stationary seat 2, spring 9, mechanical sealing static ring 3 and O type rubber seal 6 in seal cartridge 1 bottom outlet successively, rotor shaft 5 is passed by mechanical seal lining 1 bottom outlet; Mechanical sealing linkage ring 4 staggered relatively and O type rubber seal 6 thereof on mechanical sealing static ring 3.
See Fig. 2, friction ring is inlayed in the workpiece face that the rotating ring 4 of mechanical seal contacts with stationary ring 3, and the thickness of rotating ring friction ring 4a, stationary ring friction ring 3a protrudes from matrix.Mechanical sealing linkage ring 4 has radial screw, fixing with rotor shaft 5 radial direction with screw 7.
The processing request of mechanical seal part
Material requires: stationary seat 2, stationary ring 3, rotating ring 4 matrix adopt stainless steel STS316, and friction ring 4a, 3a that rotating ring 4, stationary ring 3 are inlayed adopt silicon carbide SIC, and spring 9 and fastening screw adopt stainless steel STS304, and seal cartridge adopts cast iron HT200.Structural requirement: 1, the position at mechanical seal and motor shaft and the seal cartridge place of connecing can not produce relative displacement, 2, the working pressure of spring will increase under the prerequisite ensureing mechanical seal working life, reset when guaranteeing stationary ring play.
During assembling, stationary seat 2 is put into seal cartridge 1 end, and it is by screw, sealing gasket 10, stationary seat 2, seal cartridge 1 three part screws are fixing bottom seal cartridge 1, rotor shaft 5 is passed by mechanical seal lining 1 bottom outlet, then the upper leading axle bearing 8 of mechanical seal lining 1 with motor is screwed; On stationary seat 2, place spring 9, mechanical sealing static ring 3 and O type rubber seal 6, O type rubber seal 6 staggered relatively and mechanical sealing linkage ring 4 thereof sequentially, mechanical sealing linkage ring 4 has radial screw, fixing with rotor shaft 5 radial direction with screw 7.
Claims (2)
1. the external sealing configuration of Submerged bittern pump motor, comprises mechanical seal structure, stationary seat, it is characterized in that external mechanical seal structure is arranged in the chamber of upper leading axle bearing, rotor shaft stretches out position beyond motor atrium; Mechanical seal structure: upwards have sealing gasket, stationary seat, spring, mechanical sealing static ring and O type rubber seal in seal cartridge bottom outlet successively, rotor shaft is passed by mechanical seal lining bottom outlet; Mechanical sealing linkage ring staggered relatively and O type rubber seal thereof on mechanical sealing static ring, rotating ring and the stationary ring surface of contact of mechanical seal inlay friction ring.
2. the external sealing configuration of Submerged bittern pump motor according to claim 1, it is characterized in that assembly structure: stationary seat (2) is positioned at seal cartridge (1) end, and by screw, sealing gasket (10), stationary seat (2), seal cartridge (1) screw are fixed in seal cartridge (1) bottom, rotor shaft (5) is passed by mechanical seal lining (1) bottom outlet, then the upper leading axle bearing (8) of mechanical seal lining (1) with motor is screwed; Stationary seat (2) is placed spring (9), mechanical sealing static ring (3) and O type rubber seal (6), O type rubber seal (6) staggered relatively and mechanical sealing linkage ring (4) successively thereof, mechanical sealing linkage ring (4) has radial screw, fixing with rotor shaft (5) radial direction with screw (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520373188.4U CN204692163U (en) | 2015-06-02 | 2015-06-02 | The external sealing configuration of Submerged bittern pump motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520373188.4U CN204692163U (en) | 2015-06-02 | 2015-06-02 | The external sealing configuration of Submerged bittern pump motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692163U true CN204692163U (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520373188.4U Active CN204692163U (en) | 2015-06-02 | 2015-06-02 | The external sealing configuration of Submerged bittern pump motor |
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| Country | Link |
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| CN (1) | CN204692163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067071A (en) * | 2018-08-31 | 2018-12-21 | 江苏金丰机电有限公司 | A kind of low noise motor |
-
2015
- 2015-06-02 CN CN201520373188.4U patent/CN204692163U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067071A (en) * | 2018-08-31 | 2018-12-21 | 江苏金丰机电有限公司 | A kind of low noise motor |
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