CN108223809A - A kind of mechanical water seal of anti-overvoltage - Google Patents

A kind of mechanical water seal of anti-overvoltage Download PDF

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Publication number
CN108223809A
CN108223809A CN201711301957.XA CN201711301957A CN108223809A CN 108223809 A CN108223809 A CN 108223809A CN 201711301957 A CN201711301957 A CN 201711301957A CN 108223809 A CN108223809 A CN 108223809A
Authority
CN
China
Prior art keywords
axle sleeve
ring
water seal
sealing ring
overvoltage
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.)
Pending
Application number
CN201711301957.XA
Other languages
Chinese (zh)
Inventor
吴翔
孟金华
王清龙
汪云
王文汇
唐宗清
徐俊东
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.)
YINLONG PUMP AND VALVE CO LDT ANHUI PROV
Original Assignee
YINLONG PUMP AND VALVE CO LDT ANHUI PROV
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 YINLONG PUMP AND VALVE CO LDT ANHUI PROV filed Critical YINLONG PUMP AND VALVE CO LDT ANHUI PROV
Priority to CN201711301957.XA priority Critical patent/CN108223809A/en
Publication of CN108223809A publication Critical patent/CN108223809A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/40Sealings between relatively-moving surfaces by means of fluid

Abstract

The present invention discloses a kind of mechanical water seal of anti-overvoltage, including the first axle sleeve(1)With the second axle sleeve(2), first axle sleeve(1)Inside it is provided with the first sealing ring(3), the first sealing ring(3)With the first axle sleeve(1)Pass through support ring(5)Connection, support ring(5)Outside is cased with spring(6), second axle sleeve(2)Inside it is provided with the second sealing ring(4), the second sealing ring(4)In the second axle sleeve(2)Between be provided with cushion pad(7), the second axle sleeve(2)Inner wall and feature contacts, inner wall edge are provided with the larger guide ring of internal diameter(9), the first axle sleeve(1)Inner wall sets restraining position ring block(8), the spacing ring(8)Internal diameter is more than guide ring(9)Internal diameter, less than the second axle sleeve(2)With the internal diameter of the inner wall of feature contacts, spacing ring(8)With guide ring(9)During contact, spring(6)It is not at and tight state.The machinery water seal has the function of to prevent overvoltage in itself, can not use tooling when mounted, reduce installation steps, greatly save cost.

Description

A kind of mechanical water seal of anti-overvoltage
Technical field
The invention belongs to mechanical encapsulation devices technical field, specifically a kind of anti-mechanical water seal of overvoltage.
Background technology
Mechanical water seal is common mechanical encapsulation devices, the axial workpiece particularly rotated for needs.Mechanical water is enclosed in During installation, axis and hole close installation that water seal inner and outer wall seals respectively with needs, water seal inner spring compression make to make pottery in water seal Ceramic ring and graphite annulus are simultaneously tight, when shaft rotation is moved, ceramic ring and graphite annulus relative motion, but since ceramic ring and graphite annulus contact are tight It is close, it can still play sealing function.
It in mechanical water seal installation process, needs water seal and part compression fit using press, during actual installation, easily Excessive pressure is matched, and water seal inner spring is and tight, but press is also applying pressure to water seal, leads to ceramic ring and graphite annulus fragmentation, The destruction that can not be retrieved is caused to water seal, therefore, factory generally requires to be fabricated separately tooling and installed for water seal, but the production produced Product are different, need to make different toolings, make installation steps cumbersome, and tooling is expensive, with high costs.
Invention content
Goal of the invention:The deficiency that the purpose of the present invention is be directed in current technology provides a kind of mechanical water seal of anti-overvoltage, this Body has the function of to prevent overvoltage, can not use tooling when mounted, reduce installation steps, greatly save cost.
Technical solution:To achieve the above object, the present invention provides a kind of mechanical water seal of anti-overvoltage, including 1 He of the first axle sleeve Second axle sleeve 2,1 and second axle sleeve 2 of the first axle sleeve are the reeded cyclic structure of tool, are set in first axle sleeve 1 There is the first sealing ring 3, first sealing ring 3 is connect with the first axle sleeve 1 by support ring 5, and spring 6 is cased with outside support ring 5, The second sealing ring 4 is provided in second axle sleeve 2, second sealing ring 4 is provided with cushion pad 7, institute between the second axle sleeve 2 2 inner wall of the second axle sleeve and feature contacts are stated, inner wall edge is provided with the larger guide ring 9 of internal diameter, 9 and first axle sleeve of guide ring 1 inner wall contacts, and plays guiding role in the mechanical water seal installation process, 1 inner wall of the first axle sleeve sets restraining position ring block 8,8 internal diameter of spacing ring is more than 9 internal diameter of guide ring, less than the internal diameter of the second axle sleeve 2 and the inner wall of feature contacts.
Preferably, when the spacing ring 8 is contacted with guide ring 9, spring 6 is not at and tight state.
Preferably, 3 material of the first sealing ring is ceramics.
Preferably, 4 material of the second sealing ring is graphite.
Preferably, the support ring 5 and 7 material of cushion pad are rubber.
Advantageous effect:The mechanical water seal of the anti-overvoltage of one kind of the present invention, 1 inner wall of the first axle sleeve setting restraining position ring block 8, When spacing ring 8 is contacted with 2 upper limit ring 9 of the second axle sleeve, spring 6 is not at and tight state, can prevent excessive pressure during installation from matching, bullet Spring 6 is simultaneously tight, and press continues to press to the first sealing ring 3 and the second sealing ring 4, leads to the first sealing ring 3 and the second sealing ring 4 Fragmentation.
The anti-over-pressed mechanical water encapsulation timing can not separately match tooling, make installation more easy, substantially reduce cost, together When can prevent mechanical water seal excessive pressure damages.
Description of the drawings
Fig. 1, the anti-mechanical sealing structure for water schematic diagram of overvoltage;
Reference numerals list:1st, the first axle sleeve, the 2, second axle sleeve, the 3, first sealing ring, the 4, second sealing ring, 5, support ring, 6, Spring, 7, cushion pad, 8, spacing ring, 9, guide ring.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific embodiments are only For illustrating the present invention rather than limiting the scope of the invention.It should be noted that word " preceding " used in the following description, " rear ", "left", "right", "up" and "down" refer to the direction in attached drawing, and word " interior " and " outer " refer respectively to direction or remote Direction from particular elements geometric center.
The mechanical water seal of the anti-overvoltage of one kind as shown in Figure 1, including the first axle sleeve 1 and the second axle sleeve 2, the first axle sleeve 1 and the Two axle sleeves 2 are the reeded cyclic structure of tool, are provided with the first sealing ring 3 in the first axle sleeve 1,3 material of the first sealing ring is Ceramics, the first sealing ring 3 are connect with the first axle sleeve 1 by support ring 5, and spring 6 is cased with outside support ring 5, is set in the second axle sleeve 2 The second sealing ring 4 is equipped with, 4 material of the second sealing ring is graphite, and the second sealing ring 4 is provided with cushion pad 7 between the second axle sleeve 2, Support ring 5 and 7 material of cushion pad are nitrile rubber;Second axle sleeve, 2 inner wall and feature contacts, inner wall edge be provided with internal diameter compared with Big guide ring 9, guide ring 9 are contacted with 1 inner wall of the first axle sleeve, and guiding role is played in the mechanical water seal installation process; First axle sleeve, 1 inner wall sets restraining position ring block 8, and 8 internal diameter of spacing ring is more than 9 internal diameter of guide ring, less than the second axle sleeve 2 and feature contacts Inner wall internal diameter, when spacing ring 8 is contacted with guide ring 9, spring 6 is not at and tight state.
The technical means disclosed in the embodiments of the present invention is not limited only to the technological means disclosed in the above embodiment, further includes By more than technical characteristic arbitrarily the formed technical solution of combination.

Claims (5)

1. a kind of mechanical water seal of anti-overvoltage, which is characterized in that including the first axle sleeve(1)With the second axle sleeve(2), first axle sleeve (1)With the second axle sleeve(2)It is to have reeded cyclic structure, first axle sleeve(1)Inside it is provided with the first sealing ring(3), First sealing ring(3)With the first axle sleeve(1)Pass through support ring(5)Connection, support ring(5)Outside is cased with spring(6), it is described Second axle sleeve(2)Inside it is provided with the second sealing ring(4), second sealing ring(4)In the second axle sleeve(2)Between be provided with cushion pad (7), second axle sleeve(2)Inner wall and feature contacts, inner wall edge are provided with the larger guide ring of internal diameter(9), guide ring (9)With the first axle sleeve(1)Inner wall contacts, and guiding role, first axle sleeve are played in the mechanical water seal installation process(1) Inner wall sets restraining position ring block(8), the spacing ring(8)Internal diameter is more than guide ring(9)Internal diameter, less than the second axle sleeve(2)With part The internal diameter of the inner wall of contact.
2. the mechanical water seal of the anti-overvoltage of one kind according to claim 1, it is characterised in that:The spacing ring(8)With guide ring (9)During contact, spring(6)It is not at and tight state.
3. the mechanical water seal of the anti-overvoltage of one kind according to claim 2, it is characterised in that:First sealing ring(3)Material For ceramics.
4. the mechanical water seal of the anti-overvoltage of one kind according to claim 3, it is characterised in that:Second sealing ring(4)Material For graphite.
5. the mechanical water seal of the anti-overvoltage of one kind according to claim 4, it is characterised in that:The support ring(5)And cushion pad (7)Material is rubber n.
CN201711301957.XA 2017-12-10 2017-12-10 A kind of mechanical water seal of anti-overvoltage Pending CN108223809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711301957.XA CN108223809A (en) 2017-12-10 2017-12-10 A kind of mechanical water seal of anti-overvoltage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711301957.XA CN108223809A (en) 2017-12-10 2017-12-10 A kind of mechanical water seal of anti-overvoltage

Publications (1)

Publication Number Publication Date
CN108223809A true CN108223809A (en) 2018-06-29

Family

ID=62653389

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711301957.XA Pending CN108223809A (en) 2017-12-10 2017-12-10 A kind of mechanical water seal of anti-overvoltage

Country Status (1)

Country Link
CN (1) CN108223809A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288474A (en) * 1963-06-14 1966-11-29 Gits Bros Mfg Co Bellows seal structure
US4337628A (en) * 1980-08-20 1982-07-06 Borg-Warner Corporation Universal joint with unitary face seal and retainer assembly
JP2545728Y2 (en) * 1991-01-21 1997-08-27 イーグル工業株式会社 Mechanical seal for cryogenic liquid
CN201013648Y (en) * 2007-02-02 2008-01-30 宁波东联密封件有限公司 Integral water pump mechanical sealing member
CN201209669Y (en) * 2008-06-10 2009-03-18 浙江东新密封有限公司 Mechanical seal for automobile engine cooling water pump
CN202108764U (en) * 2011-06-28 2012-01-11 瑞安市万路达汽车部件有限公司 Automobile engine cooling pump
CN203570659U (en) * 2013-09-23 2014-04-30 常州市泽盛机械有限公司 Internal combustion engine cooling water pump for tractor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288474A (en) * 1963-06-14 1966-11-29 Gits Bros Mfg Co Bellows seal structure
US4337628A (en) * 1980-08-20 1982-07-06 Borg-Warner Corporation Universal joint with unitary face seal and retainer assembly
JP2545728Y2 (en) * 1991-01-21 1997-08-27 イーグル工業株式会社 Mechanical seal for cryogenic liquid
CN201013648Y (en) * 2007-02-02 2008-01-30 宁波东联密封件有限公司 Integral water pump mechanical sealing member
CN201209669Y (en) * 2008-06-10 2009-03-18 浙江东新密封有限公司 Mechanical seal for automobile engine cooling water pump
CN202108764U (en) * 2011-06-28 2012-01-11 瑞安市万路达汽车部件有限公司 Automobile engine cooling pump
CN203570659U (en) * 2013-09-23 2014-04-30 常州市泽盛机械有限公司 Internal combustion engine cooling water pump for tractor

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SE01 Entry into force of request for substantive examination
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Application publication date: 20180629