CN203783955U - Double-end-face packaging mechanical seal - Google Patents

Double-end-face packaging mechanical seal Download PDF

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Publication number
CN203783955U
CN203783955U CN201420196267.8U CN201420196267U CN203783955U CN 203783955 U CN203783955 U CN 203783955U CN 201420196267 U CN201420196267 U CN 201420196267U CN 203783955 U CN203783955 U CN 203783955U
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CN
China
Prior art keywords
ring
spring
seal
face
rotating ring
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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
CN201420196267.8U
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Chinese (zh)
Inventor
苏瑞益
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Individual
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Individual
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Publication date
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Priority to CN201420196267.8U priority Critical patent/CN203783955U/en
Application granted granted Critical
Publication of CN203783955U publication Critical patent/CN203783955U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a double-end-face packaging mechanical seal. A front seal assembly and a rear seal assembly are arranged respectively in a front cavity and a rear cavity formed by a connecting flange, a connecting shaft sleeve and a rear gland; the front seal assembly comprises a front static ring and a front moving ring, part of the front static ring is placed in a cavity channel between the connecting flange and the connecting shaft sleeve, and a first spring is arranged between the front static ring and an end face of the connecting flange; and the rear seal assembly comprises a rear static ring and a rear moving ring, the rear moving ring is fixedly connected with the rear gland, the front moving ring and the rear moving ring rotate synchronously with the connecting shaft sleeve respectively, a second spring is arranged between an end face of the rear moving ring and the connecting shaft sleeve, the front moving ring and the rear moving ring are in sliding seal fit with end faces of the front static ring and the rear static ring under the actions of the first spring and the second spring, and combination parts between the front and rear moving rings and the connecting shaft sleeve as well as the combination part between the connecting flange and the rear gland are in seal fit through O-shaped seal rings. The double-end-face loading type mechanical seal can ensure that the moving and static rings are in good seal state all along when a pump is in a high-pressure operating environment, and can effectively prevent dielectric leakage.

Description

Double End integrated mechanical sealing
Technical field
The utility model relates to a kind of mechanical seal, is applicable to slag stock pump, desulfur pump, feeding pump, slurry pump, pulp pump etc.
Background technique
The pump that the industries such as existing metallurgy, mine, papermaking, generating are used, as slag stock pump, desulfur pump, feeding pump, slurry pump, pulp pump etc., its mechanical seal realizes sealing by one group of black box mostly.Because the material of carrying through this type of pump housing mostly is solid particle medium, as cinder, powder metallurgy, silt etc., concentration is high, and pressure is large.The sealability of this single sealing configuration is poor, in use, often occurs dielectric leakage, easily stops up, and cannot inject lubricant oil or water.Due to the destruction of sealing surface, often there is dry friction in Sealing, so that burn out Sealing, causes dielectric leakage, makes produced harmful material befouling environment.
Summary of the invention
Technical problem to be solved in the utility model is to provide the better mechanical seal of a kind of sealability, further to improve the mechanical sealing performance of above-mentioned pump like that.
Technical solution adopted in the utility model is: a kind of Double End integrated mechanical sealing, comprises adpting flange, connecting bushing and rear pressing cover, two seals assembly before and after being respectively equipped with in the front and back cavity that described adpting flange, connecting bushing and rear pressing cover form; Described front black box comprises front stationary ring and front rotating ring, and front stationary ring part is placed in the cavity between adpting flange and connecting bushing, and and adpting flange end face between be provided with the first spring; Described rear black box comprises rear stationary ring and rear rotating ring, rear stationary ring is fixedly connected with rear pressing cover, front rotating ring and rear rotating ring are respectively with connecting bushing synchronous rotary, between one end face of rear rotating ring and connecting bushing, be provided with the second spring, front rotating ring and rear rotating ring are slipper seal with the end face of front stationary ring and rear stationary ring respectively and coordinate under the effect of the first spring and the second spring, front rotating ring and rear rotating ring and connecting bushing connecting part are provided with respectively 0 shape seal ring, are and are sealed and matched by 0 shape seal ring and connecting bushing; The junction of adpting flange and rear pressing cover is provided with 0 shape seal ring.
The further technological scheme of the utility model is: described the first spring and the second spring are belleville spring, and the first spring is large compared with the second spring.
The beneficial effects of the utility model are: twice mechanical sealing assembly before and after arranging in the cavity due to axle sleeve and adpting flange (pump housing); two end faces such as have produced not at work at the effect; front stationary ring adds large belleville spring behind; in the situation that Seal cage has pressure, keep the stability Leakage prevention of front-end face, in the situation that pump chamber is stressed, protected.And along with the pressure increase of pump chamber, the end face of sealing is tighter, and front stationary ring is positioned on connecting bushing, and rear stationary ring is fixed on the balance that rear pressing cover keeps two end faces of sealing.The belleville spring that another one is little prevents that at rear rotating ring the pressure of Seal cage from leaking at front-end face behind, thereby the high pressure resistant integrated mechanical sealing of composition Double End, guarantee that pump is at operations involving high pressure environment, dynamic and static ring, all the time in good sealing state, effectively prevents dielectric leakage.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is a kind of embodiment's of the utility model structural representation.
Drawing explanation: 1. adpting flange, 2. connecting bushing, 3. front stationary ring, 4. the first spring, 5. front rotating ring, 6. the second spring, 7. rear rotating ring, 8. rear stationary ring, 9. rear pressing cover, 10. retaining ring, 11.0 shape seal rings.
Embodiment
As shown in Figure 1, a kind of Double End integrated mechanical sealing of the present embodiment, comprises adpting flange (being the pump housing) 1, connecting bushing 2 and rear pressing cover 9, and adpting flange 1 is provided with water injection hole and osculum.Two seals assembly before and after being respectively equipped with in the front and back cavity that adpting flange 1, connecting bushing 2 and rear pressing cover 9 form.Front black box comprises front stationary ring 3 and front rotating ring 5, and front stationary ring 3 parts are placed in the cavity between adpting flange 1 and connecting bushing 2, and and adpting flange 1 end face between be provided with the first spring 4; Described rear black box comprises rear stationary ring 8 and rear rotating ring 7, and rear stationary ring 8 is fixedly connected with by screw with rear pressing cover 9, and front rotating ring 5 and rear rotating ring 7, respectively with connecting bushing 2 synchronous rotaries, are provided with the second spring 6 between an end face of rear rotating ring 7 and connecting bushing 2.In the present embodiment, the first spring 4 and the second spring 6 are belleville spring, and the first spring 4 is large compared with the second spring 6, and front rotating ring 5 and rear rotating ring 7 are slipper seal with the end face of front stationary ring 3 and rear stationary ring 8 respectively and coordinate under the effect of the first spring 4 and the second spring 6.Front rotating ring 5 and rear rotating ring 7 are provided with respectively 0 shape seal ring 11 with connecting bushing 2 connecting parts, are and are sealed and matched with connecting bushing 2 by 0 shape seal ring 11; Adpting flange 1 is provided with 0 shape seal ring 11 with the junction of rear pressing cover 9.
The present embodiment Double End integrated mechanical sealing is outer circulation flushing mechanism, and high low pressure supplies water, and operations involving high pressure, can overcome various rugged environment and damage to sealing surface.Be applied to the pump that the industries such as metallurgy, mine, papermaking, generating are used.

Claims (2)

1. a Double End integrated mechanical sealing, it is characterized in that: comprise adpting flange (1), connecting bushing (2) and rear pressing cover (9), two seals assembly before and after being respectively equipped with in the front and back cavity that described adpting flange (1), connecting bushing (2) and rear pressing cover (9) form, described front black box comprises front stationary ring (3) and front rotating ring (5), and front stationary ring (3) part is placed in the cavity between adpting flange (1) and connecting bushing (2), and and adpting flange (1) end face between be provided with the first spring (4), described rear black box comprises rear stationary ring (8) and rear rotating ring (7), rear stationary ring (8) is fixedly connected with rear pressing cover (9), front rotating ring (5) and rear rotating ring (7) are respectively with connecting bushing (2) synchronous rotary, between one end face of rear rotating ring (7) and connecting bushing (2), be provided with the second spring (6), front rotating ring (5) and rear rotating ring (7) are slipper seal with the end face of front stationary ring (3) and rear stationary ring (8) respectively and coordinate under the effect of the first spring (4) and the second spring (6), front rotating ring (5) and rear rotating ring (7) are provided with respectively 0 shape seal ring (11) with connecting bushing (2) connecting part, be and be sealed and matched by 0 shape seal ring (11) and connecting bushing (2), adpting flange (1) is provided with 0 shape seal ring (11) with the junction of rear pressing cover (9).
2. Double End integrated mechanical sealing according to claim 1, is characterized in that: described the first spring (4) and the second spring (6) are belleville spring, and the first spring (4) is large compared with the second spring (6).
CN201420196267.8U 2014-04-22 2014-04-22 Double-end-face packaging mechanical seal Expired - Fee Related CN203783955U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420196267.8U CN203783955U (en) 2014-04-22 2014-04-22 Double-end-face packaging mechanical seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420196267.8U CN203783955U (en) 2014-04-22 2014-04-22 Double-end-face packaging mechanical seal

Publications (1)

Publication Number Publication Date
CN203783955U true CN203783955U (en) 2014-08-20

Family

ID=51320147

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420196267.8U Expired - Fee Related CN203783955U (en) 2014-04-22 2014-04-22 Double-end-face packaging mechanical seal

Country Status (1)

Country Link
CN (1) CN203783955U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104373375A (en) * 2014-10-30 2015-02-25 江苏海天泵阀制造有限公司 Axially adjustable corrugated diaphragm type sealing assembly
CN104879498A (en) * 2015-04-15 2015-09-02 上海高更高实业有限公司 Super-short cartridge mechanical sealing unit with multifunctional rotary components
CN107542933A (en) * 2016-06-23 2018-01-05 上海易勒机电设备有限公司 A kind of integrated mechanical sealing device
CN108843614A (en) * 2018-07-23 2018-11-20 余姚市华泰邦威泵业有限公司 A kind of Double End shaft sealer
CN111794998A (en) * 2020-06-28 2020-10-20 台州海百纳船舶设备股份有限公司 Pump with modular structure convenient for mounting and packaging sealing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104373375A (en) * 2014-10-30 2015-02-25 江苏海天泵阀制造有限公司 Axially adjustable corrugated diaphragm type sealing assembly
CN104879498A (en) * 2015-04-15 2015-09-02 上海高更高实业有限公司 Super-short cartridge mechanical sealing unit with multifunctional rotary components
CN107542933A (en) * 2016-06-23 2018-01-05 上海易勒机电设备有限公司 A kind of integrated mechanical sealing device
CN108843614A (en) * 2018-07-23 2018-11-20 余姚市华泰邦威泵业有限公司 A kind of Double End shaft sealer
CN108843614B (en) * 2018-07-23 2024-06-07 浙江华泰邦威泵业有限公司 Double-end-face shaft sealing device
CN111794998A (en) * 2020-06-28 2020-10-20 台州海百纳船舶设备股份有限公司 Pump with modular structure convenient for mounting and packaging sealing

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

Granted publication date: 20140820

Termination date: 20160422