CN1664419A - Sealing device between rotating shaft and liquid nitrogen container - Google Patents

Sealing device between rotating shaft and liquid nitrogen container Download PDF

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Publication number
CN1664419A
CN1664419A CN 200510009826 CN200510009826A CN1664419A CN 1664419 A CN1664419 A CN 1664419A CN 200510009826 CN200510009826 CN 200510009826 CN 200510009826 A CN200510009826 A CN 200510009826A CN 1664419 A CN1664419 A CN 1664419A
Authority
CN
China
Prior art keywords
liquid nitrogen
sealing
rotating shaft
hole
nitrogen container
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.)
Granted
Application number
CN 200510009826
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Chinese (zh)
Other versions
CN100338378C (en
Inventor
高海波
邓宗全
陈明
郝广平
刘吉成
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.)
Harbin University of technology robot group (Shandong) Co., Ltd.
Original Assignee
Harbin Institute of Technology
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 Harbin Institute of Technology filed Critical Harbin Institute of Technology
Priority to CNB2005100098265A priority Critical patent/CN100338378C/en
Publication of CN1664419A publication Critical patent/CN1664419A/en
Application granted granted Critical
Publication of CN100338378C publication Critical patent/CN100338378C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Sealing Devices (AREA)

Abstract

The invention relates to a sealing device between the rotating shaft and the liquid nitrogen vessel that is made up of liquid nitrogen vessel, rotating shaft, tightening device and sealing component. Via holes with same shaft and circular bead are set on the two sidewalls of the liquid nitrogen vessel. The rotating shaft is set in the through hole. The sealing component is set between the inner wall and the rotating shaft. The tightening device is installed between the out surface of the sealing component and the wall of the through hole. The invention is simple structure, good sealing effect and is easy to install.

Description

Seal arrangement between rotating shaft and the liquid nitrogen container
Technical field:
The present invention relates to the seal arrangement between a kind of rotatable parts and the liquid nitrogen container, be specifically related to the seal arrangement between a kind of rotating shaft and the liquid nitrogen container.
Background technique:
At present, liquid nitrogen has all obtained great application in industry, agricultural, medical treatment, biotechnology and preservation technique, but owing to liquid nitrogen easily gasifies, and can absorb a large amount of heats in the gasification, so liquid nitrogen is very important with the sealing problem in the transportation process in use.Liquid nitrogen sealing in the past only relates to the sealing of seal container opening, belongs to the sealing of liquid nitrogen container itself, and employed Sealing mostly is various low temperature resistant valve class A of geometric unitA.And for the sealing between other workpieces and the liquid nitrogen container, then there is complex structure in the particularly sealing between rotatable parts and the liquid nitrogen container, and sealing effect is poor, the problem that Sealing damages easily.
Summary of the invention:
The objective of the invention is that there is complex structure in the sealing between the rotatable parts and liquid nitrogen container in order to solve in the past, sealing effect is poor, Sealing damages problem and a kind of rotating shaft that provides and the seal arrangement between the liquid nitrogen container easily, it has simple in structure, easy for installation, good sealing effect, the non-damageable advantage of Sealing.It is made up of liquid nitrogen container 1, rotating shaft 2, hold down gag 3, Sealing 4; Have the through hole 1-1 of coaxial band shoulder on two sidewalls of liquid nitrogen container 1, rotating shaft 2 is housed in the through hole 1-1, between the inwall of through hole 1-1 and rotating shaft 2, Sealing 4 is housed, between the hole wall of the exterior edge face of Sealing 4 and through hole 1-1, hold down gag 3 is housed fixedly.The present invention has following beneficial effect: one, there is complex structure in the sealing between existing rotatable parts and the liquid nitrogen container, sealing effect is poor, the problem that Sealing damages easily, the present invention has overcome above-mentioned so that deficiency and the defective that exists in the technology to be arranged, and through test of many times, has determined technological scheme of the present invention at last, the present invention has simple in structure, easy for installation, good sealing effect, the non-damageable advantage of Sealing.Two, when assembling, between the madial wall and rotating shaft of the liquid nitrogen container through hole of earlier Sealing being packed into, between the hole wall of the exterior edge face of Sealing and through hole, hold down gag is housed, utilize hold down gag and seal combination to use, the better effects if that liquid nitrogen is sealed.
Description of drawings:
Fig. 1 is a whole sectional structure schematic representation of the present invention.
Embodiment:
Embodiment one: in conjunction with Fig. 1 present embodiment is described, present embodiment is made up of liquid nitrogen container 1, rotating shaft 2, hold down gag 3, Sealing 4; Have the through hole 1-1 of coaxial band shoulder on two sidewalls of liquid nitrogen container 1, rotating shaft 2 is housed in the through hole 1-1, between the inwall of through hole 1-1 and rotating shaft 2, Sealing 4 is housed, between the hole wall of the exterior edge face of Sealing 4 and through hole 1-1, hold down gag 3 is housed fixedly.
Embodiment two: in conjunction with Fig. 1 present embodiment is described, the Sealing 4 of present embodiment is the Sealing of not embrittlement at low temperatures that can absorb water also; Described energy absorbs water also at low temperatures, and the Sealing 4 of not embrittlement is the felt circle.Adopt the Sealing 4-felt circle of not embrittlement at low temperatures that can absorb water also, its good sealing effect, and not fragile.Other composition and annexation are identical with embodiment one.
Embodiment three: in conjunction with Fig. 1 present embodiment is described, the hold down gag 3 of present embodiment is for having externally threaded gland nut; The outside thread of gland nut is connected with the internal thread of through hole 1-1.Employing has externally threaded gland nut and has screwing between the through hole 1-1 of internal thread, can guarantee that Sealing 4 compresses, and makes the better effects if of liquid nitrogen sealing.Other composition and annexation are identical with embodiment one.
Working principle is: between the madial wall and rotating shaft 2 of the liquid nitrogen container through hole 1-1 that earlier the wet hair felt collar packed into, in the through hole 1-1 of wet hair felt collar exterior edge face, be equipped with and have externally threaded gland nut, internal thread with externally threaded gland nut and through hole 1-1 is screwed compress the wet hair felt collar, when the wet hair felt collar with after liquid nitrogen contacts, water in the wet hair felt collar freezes at once, the space of wet hair felt collar and the space between the rotating shaft 2 are all filled up, reached the purpose of sealing.

Claims (4)

1, the seal arrangement between a kind of rotating shaft and the liquid nitrogen container, it is made up of liquid nitrogen container (1), rotating shaft (2), hold down gag (3), Sealing (4); It is characterized in that having on two sidewalls of liquid nitrogen container (1) through hole (1-1) of coaxial band shoulder, rotating shaft (2) is housed in the through hole (1-1), between the inwall of through hole (1-1) and rotating shaft (2), Sealing (4) is housed, between the hole wall of the exterior edge face of Sealing (4) and through hole (1-1), hold down gag (3) is housed fixedly.
2, the seal arrangement between rotating shaft according to claim 1 and the liquid nitrogen container is characterized in that described Sealing (4) is the Sealing of not embrittlement at low temperatures that can absorb water also.
3, the seal arrangement between rotating shaft according to claim 2 and the liquid nitrogen container, the Sealing of not embrittlement (4) is the felt circle to it is characterized in that absorbing water also at low temperatures by described energy.
4, the seal arrangement between rotating shaft according to claim 1 and the liquid nitrogen container is characterized in that described hold down gag (3) is for having externally threaded gland nut; The outside thread of gland nut is connected with the internal thread of through hole (1-1).
CNB2005100098265A 2005-03-16 2005-03-16 Sealing device between rotating shaft and liquid nitrogen container Expired - Fee Related CN100338378C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005100098265A CN100338378C (en) 2005-03-16 2005-03-16 Sealing device between rotating shaft and liquid nitrogen container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100098265A CN100338378C (en) 2005-03-16 2005-03-16 Sealing device between rotating shaft and liquid nitrogen container

Publications (2)

Publication Number Publication Date
CN1664419A true CN1664419A (en) 2005-09-07
CN100338378C CN100338378C (en) 2007-09-19

Family

ID=35035643

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2005100098265A Expired - Fee Related CN100338378C (en) 2005-03-16 2005-03-16 Sealing device between rotating shaft and liquid nitrogen container

Country Status (1)

Country Link
CN (1) CN100338378C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110762207A (en) * 2019-11-12 2020-02-07 国网重庆市电力公司电力科学研究院 Sealing device for online electrochemical test of overhead ground wire and test method thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704019A (en) * 1970-06-19 1972-11-28 Gen Electric Spiral groove face seals
IL84691A0 (en) * 1986-12-03 1988-05-31 Sealing Devices Pty Ltd Improved rotary seal
GB9214282D0 (en) * 1992-07-04 1992-08-19 Crane John Uk Ltd Seals
AU732788B2 (en) * 1996-02-16 2001-05-03 Invensys Building Systems Inc. Stem sealing system for broad temperature ranges
CN2335766Y (en) * 1998-09-04 1999-09-01 陈毅凯 Equation mixer
JP2000199652A (en) * 1998-12-28 2000-07-18 Daikin Ind Ltd Seal structure for displacer of very low temperature refrigerator
CN2451390Y (en) * 2000-12-05 2001-10-03 戴伟 Sealing structure for output end of hydraulic steering device of vehicle
CN2497861Y (en) * 2001-09-07 2002-07-03 宁波明欣化工机械有限责任公司 Low-temperature reactor device
CN1552920A (en) * 2003-05-29 2004-12-08 锐步科技有限公司 Method and apparatus for ultra-low temperature refrigerating treatment and heating treatment continuous treatment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110762207A (en) * 2019-11-12 2020-02-07 国网重庆市电力公司电力科学研究院 Sealing device for online electrochemical test of overhead ground wire and test method thereof

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Publication number Publication date
CN100338378C (en) 2007-09-19

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Effective date of registration: 20180329

Address after: 150001 No. 434, postal street, Nangang District, Heilongjiang, Harbin

Patentee after: Harbin Institute of Technology National University Science Park Development Co., Ltd.

Address before: 150001 Harbin, Nangang, West District, large straight street, No. 92

Patentee before: Harbin Institute of Technology

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180511

Address after: 510000 room 340, C 340, Shi Huan Road, Tianhe District, Guangzhou, Guangdong.

Patentee after: Harbin robotics group (Guangzhou) intellectual property Klc Holdings Ltd

Address before: 150001 vice 434, postal street, Nangang District, Harbin, Heilongjiang.

Patentee before: Harbin Institute of Technology National University Science Park Development Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180620

Address after: 150000 intersection of Dalian North Road and Xingkai Road, Harbin, Heilongjiang

Patentee after: Hagongda robot group (Harbin) Asset Management Co., Ltd.

Address before: 510000 room 340, C 340, Shi Huan Road, Tianhe District, Guangzhou, Guangdong.

Patentee before: Harbin robotics group (Guangzhou) intellectual property Klc Holdings Ltd

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180705

Address after: 150000 Dalian Road North and Xingkai Road, Harbin, Heilongjiang province.

Patentee after: Hagongda robot group (Harbin) Asset Management Co., Ltd.

Address before: 510000 room 340, C 340, Shi Huan Road, Tianhe District, Guangzhou, Guangdong.

Patentee before: Harbin robotics group (Guangzhou) intellectual property Klc Holdings Ltd

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20190613

Address after: Room 306, Building A, Building 3, Building 11, Courtyard 8, Liangshuihe Second Street, Daxing District, Beijing

Patentee after: Beijing hi tech robot Co., Ltd.

Address before: 150000 Dalian Road North and Xingkai Road, Harbin, Heilongjiang province.

Patentee before: Hagongda robot group (Harbin) Asset Management Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20191016

Address after: Room 501, entrepreneurial service center, Chengdong Industrial Park, Shuangshan street, Zhangqiu District, Jinan City, Shandong Province

Patentee after: Harbin University of technology robot group (Shandong) Co., Ltd.

Address before: Room 306, Building A, Building 3, Building 11, Courtyard 8, Liangshuihe Second Street, Daxing District, Beijing

Patentee before: Beijing hi tech robot Co., Ltd.

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: 20070919

Termination date: 20210316