CN202811476U - Submersible pump mechanical seal device - Google Patents

Submersible pump mechanical seal device Download PDF

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Publication number
CN202811476U
CN202811476U CN 201220289899 CN201220289899U CN202811476U CN 202811476 U CN202811476 U CN 202811476U CN 201220289899 CN201220289899 CN 201220289899 CN 201220289899 U CN201220289899 U CN 201220289899U CN 202811476 U CN202811476 U CN 202811476U
Authority
CN
China
Prior art keywords
ring
spring
impeller
stationary
seal
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN 201220289899
Other languages
Chinese (zh)
Inventor
徐成志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU KEXING SEALING TECHNOLOGY Co Ltd
Original Assignee
CHENGDU KEXING SEALING TECHNOLOGY Co Ltd
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 CHENGDU KEXING SEALING TECHNOLOGY Co Ltd filed Critical CHENGDU KEXING SEALING TECHNOLOGY Co Ltd
Priority to CN 201220289899 priority Critical patent/CN202811476U/en
Application granted granted Critical
Publication of CN202811476U publication Critical patent/CN202811476U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a submersible pump mechanical seal device. The device comprises a stationary ring, a rotating ring, a stationary ring seal ring, a rotating ring seal ring, a locking positioning spring, a thrust ring, a spring, a spring seat, a drive pin, a pump body and an impeller, wherein the stationary ring seal ring is fixed between the stationary ring and the pump body; the stationary ring is hinged with the rotating ring; the locking positioning spring is arranged in a clamping groove in the impeller, and connected to the rotating ring; the rotating ring is connected to the thrust ring through the rotating ring seal ring; the push ring is connected with the spring seat through the spring; the spring seat is connected to the impeller through the drive pin; and the impeller is arranged on the rotation axis of a rotating shaft. According to the utility model, the spring tightly presses the stationary ring and the rotating ring to prevent leakage, so that the impact on the shaft and media is smaller; and the submersible pump mechanical seal device has the advantages of simple structure, low cost and convenience in installation.

Description

The submersible pump mechanical seal device
Technical field
The utility model relates to a kind of seal arrangement, relates in particular to a kind of submersible pump mechanical seal device.
Background technique
At present, a large amount of oil sealings that adopt directly carry out interference fit and realize motive sealing with running shaft, and its Tongzhou degree to running shaft, size deviation, out of roundness, surface roughness etc. have very strict requirement.The coaxality size of taking out directly affects the distribution of oil sealing lip contact stress, usually requires at 0.3mm, and the diameter of axle is 50-80mm, and the oil sealing linear velocity is in 10-15m/s, yet is difficult under many circumstances accomplish.
The size deviation of axle can affect sealing effect, the contact load of excessive axle meeting layer frame lip end, and too small axle then can make the sealing load on the lip end in contact face inadequate.Contact is crossed conference and is impelled the sealing premature failure, and contact is too small then can to cause leakage.
Thereby the out of roundness of axle makes elastomeric lip produce rapid variation of oil slick thickness according to the irrgular movement of axle possibly causes that sealing pair leaks.
The roughness General provisions of axle is Ra1.6-3.2 μ m, and the surface is too smooth to be unfavorable for forming and the maintenance oil film, the seal ring dry friction, and burn causes leakage easily; The axle surface is too coarse, and the fretting wear aggravation can cause oil sealing early failue equally.
Aspect installing and using, must reach the standard grade at oil seal lip before installing and be coated with a little lubricating grease, owing to sealed lip has a magnitude of interference with respect to axle, must be noted that during installation and prevent such as the reversing, extrude of sealed lip, when axle head is not with circular cone.Fillet and when screw thread is arranged is with regard to more it should be noted that otherwise easily lip is scratched and affect sealing effect.
Existing oil sealing is responsive to the damage on axle surface, and very slight damage all might produce greatly impact to its sealing effect and operating life, even directly brings leakage.
Summary of the invention
The purpose of this utility model provides a kind of submersible pump mechanical seal device with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises stationary ring, rotating ring, the stationary ring seal ring, seal ring of moving ring, the locking and positioning spring, throw-out collar, spring, spring seat, driving pin, the pump housing and impeller, described stationary ring seal ring is fixed between described stationary ring and the described pump housing, described stationary ring and described rotating ring are hinged, described locking and positioning spring is arranged in the draw-in groove on the described impeller and with described rotating ring and is connected, described rotating ring is connected by described seal ring of moving ring with described throw-out collar, described throw-out collar is connected by described spring with described spring seat, described spring seat is connected by described driving pin with described impeller, and described impeller is installed on the running shaft of described running shaft.
Further, described stationary ring seal ring and described seal ring of moving ring are poly-four Buddhist ethene seal rings.
Further, described impeller is the carbon steel impeller, and described running shaft is the carbon steel running shaft.
The beneficial effects of the utility model are:
The utility model prevents from revealing by spring compression stationary ring and rotating ring, and is less on the impact of axle and medium; The utlity model has advantage simple in structure, that cost is low and easy for installation.
Description of drawings
Fig. 1 is the sectional view of submersible pump mechanical seal device described in the utility model;
1-poly-four Buddhist ethene stationary ring seal rings among the figure, 2-stationary ring, 3-locking and positioning spring, 4-rotating ring, 5-poly-four Buddhist ethene seal ring of moving ring, 6-throw-out collar, 7-spring, 8-spring seat, 9-driving pin, 10-pump housing, 11-impeller, 12-running shaft.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises stationary ring 2, rotating ring 4, poly-four Buddhist ethene stationary ring seal rings 1, poly-four Buddhist ethene seal ring of moving ring 5, locking and positioning spring 3, throw-out collar 6, spring 7, spring seat 8, driving pin 9, the pump housing 10 and impeller 11, poly-four Buddhist ethene stationary ring seal rings 1 are fixed between stationary ring 2 and the pump housing 10, stationary ring 2 is hinged with rotating ring 4, locking and positioning spring 3 is arranged in the draw-in groove on the impeller 11 and with rotating ring 4 and is connected, rotating ring 4 is connected by poly-four Buddhist ethene seal ring of moving ring 5 with throw-out collar 6, throw-out collar 6 is connected by spring 7 with spring seat 8, spring seat 8 is connected by driving pin 9 with impeller 11, and impeller 11 is installed on the running shaft 12 of submersible pump.

Claims (3)

1. submersible pump mechanical seal device, it is characterized in that: comprise stationary ring, rotating ring, the stationary ring seal ring, seal ring of moving ring, the locking and positioning spring, throw-out collar, spring, spring seat, driving pin, the pump housing and impeller, described stationary ring seal ring is fixed between described stationary ring and the described pump housing, described stationary ring and described rotating ring are hinged, described locking and positioning spring is arranged in the draw-in groove on the described impeller and with described rotating ring and is connected, described rotating ring is connected by described seal ring of moving ring with described throw-out collar, described throw-out collar is connected by described spring with described spring seat, described spring seat is connected by described driving pin with described impeller, and described impeller is installed on the running shaft of described running shaft.
2. submersible pump mechanical seal device according to claim 1, it is characterized in that: described stationary ring seal ring and described seal ring of moving ring are teflin ring.
3. submersible pump mechanical seal device according to claim 1, it is characterized in that: described impeller is the carbon steel impeller, described running shaft is the carbon steel running shaft.
CN 201220289899 2012-06-20 2012-06-20 Submersible pump mechanical seal device Expired - Fee Related CN202811476U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220289899 CN202811476U (en) 2012-06-20 2012-06-20 Submersible pump mechanical seal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220289899 CN202811476U (en) 2012-06-20 2012-06-20 Submersible pump mechanical seal device

Publications (1)

Publication Number Publication Date
CN202811476U true CN202811476U (en) 2013-03-20

Family

ID=47870359

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220289899 Expired - Fee Related CN202811476U (en) 2012-06-20 2012-06-20 Submersible pump mechanical seal device

Country Status (1)

Country Link
CN (1) CN202811476U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105201899A (en) * 2015-10-23 2015-12-30 宁波方力密封件有限公司 Mechanical seal for boiler feed pump
CN107401616A (en) * 2017-07-28 2017-11-28 丹东克隆集团有限责任公司 Nuclear power low pressure safety injection pump mechanically-sealing apparatus
CN108194406A (en) * 2017-12-28 2018-06-22 西安航天动力研究所 It is a kind of can the late release moment mechanically-sealing apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105201899A (en) * 2015-10-23 2015-12-30 宁波方力密封件有限公司 Mechanical seal for boiler feed pump
CN107401616A (en) * 2017-07-28 2017-11-28 丹东克隆集团有限责任公司 Nuclear power low pressure safety injection pump mechanically-sealing apparatus
CN108194406A (en) * 2017-12-28 2018-06-22 西安航天动力研究所 It is a kind of can the late release moment mechanically-sealing apparatus
CN108194406B (en) * 2017-12-28 2019-07-16 西安航天动力研究所 It is a kind of can the late release moment mechanically-sealing apparatus

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130320

Termination date: 20130620