CN105387222A - Limiting structure for a valve rod - Google Patents

Limiting structure for a valve rod Download PDF

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Publication number
CN105387222A
CN105387222A CN201510936307.7A CN201510936307A CN105387222A CN 105387222 A CN105387222 A CN 105387222A CN 201510936307 A CN201510936307 A CN 201510936307A CN 105387222 A CN105387222 A CN 105387222A
Authority
CN
China
Prior art keywords
valve rod
limiting
end cap
valve
bearing
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
CN201510936307.7A
Other languages
Chinese (zh)
Inventor
李远杰
张静
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.)
Jiangsu Shentong Valve Co Ltd
Original Assignee
Jiangsu Shentong Valve 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 Jiangsu Shentong Valve Co Ltd filed Critical Jiangsu Shentong Valve Co Ltd
Priority to CN201510936307.7A priority Critical patent/CN105387222A/en
Publication of CN105387222A publication Critical patent/CN105387222A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/224—Details of bearings for the axis of rotation

Abstract

A limiting structure for a valve rod comprises a valve body, the valve rod, a bearing and an end cap, wherein the bottom of the valve body is sealed with the end cap and fixed by bolts; the tail part of the valve rod is fixed by screws; a limiting pad is fixedly mounted at the tail part of the valve rod; an adjusting pad is arranged between the limiting pad and the end cap; and the limiting pad is propped against the bearing to perform axial limiting. The limiting structure for the valve rod has the beneficial effects as follows: axial limiting is realized, online maintenance can be performed, and the dismounting and mounting are convenient; and meanwhile, after long-time use, the limiting pad can be replaced while the valve rod is not needed to be replaced, the replacement is convenient, and cost is saved.

Description

A kind of limit structure of valve rod
Art
The present invention relates to a kind of axial limit structure of valve rod, particularly relate to a kind of limit structure being applicable to the valve rod of butterfly valve.
Background technique
The axial limiting of the butterfly valve of currently available technology is realized by the annulus of splitting be installed in valve shaft groove, and shortcoming is: carry out circumference fluting to valve rod, reduce the intensity of valve rod, shorten working life; Split annulus installation difficulty easily to come off; Need entirety to pull down valve rod, inconvenient maintenance during later period maintenance, and can not change online; Valve is in running, and directly and spacer friction, can cause the wearing and tearing of valve stem end, maintenance cost is high for valve rod.
Summary of the invention
In order to overcome the shortcoming of existing valve stem spacing structure, the invention provides a kind of structure simple, can on-line maintenance be carried out and the lower valve stem spacing structure of maintenance cost.
The technical solution adopted for the present invention to solve the technical problems is, a kind of limit structure of valve rod, comprise valve body, valve rod, bearing, end cap, bearing set on valve rod also penetrates in valve body, body base is by end bracket enclosed and be bolted, and valve rod afterbody fixedly mounts spacing pad by screw, is provided with spacer between spacing pad and end cap, spacing pad abuts with bearing, carries out axial limiting.
The invention has the beneficial effects as follows, both can realize axial limiting, can on-line maintenance be carried out again, and easy accessibility; Meanwhile, when using for a long time, can change the spacing pad of wearing and tearing, and need not change valve rod, it is convenient, cost-saving to change.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment.
In figure: 1. valve body; 2. valve rod; 3. screw; 4. bearing; 5. spacing pad; 6. end cap; 7. spacer; 8. bolt.
Embodiment
As shown in Figure 1, a kind of limit structure of valve rod, comprise valve body 1, valve rod 2, bearing 4, end cap 6, bearing set 4 on valve rod 2 also penetrates in valve body 1, sealed by end cap 6 bottom valve body 1 and fixed by bolt 8, valve rod 2 afterbody fixedly mounts spacing pad 5 by screw 3, is provided with spacer 7 between spacing pad 5 and end cap 6, spacing pad 5 abuts with bearing 4, carries out axial limiting.
During on-line maintenance, first screw off bolt 8, end cap 6 is pulled down, and take off spacer 7, then unclamp screw 3, can spacing pad 5 or bearing 4 be changed, be keeped in repair.

Claims (1)

1. the limit structure of a valve rod, comprise valve body, valve rod, bearing, end cap, bearing set on valve rod also penetrates in valve body, body base is by end bracket enclosed and be bolted, it is characterized in that: valve rod afterbody fixedly mounts spacing pad by screw, be provided with spacer between spacing pad and end cap, described spacing pad abuts with described bearing, carries out axial limiting.
CN201510936307.7A 2015-12-16 2015-12-16 Limiting structure for a valve rod Pending CN105387222A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510936307.7A CN105387222A (en) 2015-12-16 2015-12-16 Limiting structure for a valve rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510936307.7A CN105387222A (en) 2015-12-16 2015-12-16 Limiting structure for a valve rod

Publications (1)

Publication Number Publication Date
CN105387222A true CN105387222A (en) 2016-03-09

Family

ID=55419810

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510936307.7A Pending CN105387222A (en) 2015-12-16 2015-12-16 Limiting structure for a valve rod

Country Status (1)

Country Link
CN (1) CN105387222A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109826964A (en) * 2019-03-14 2019-05-31 江苏神通阀门股份有限公司 A kind of axial limit structure

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040100877A (en) * 2004-03-29 2004-12-02 주식회사 삼진정밀 Valve disk regulator of butterfly valve
CN201401529Y (en) * 2009-03-27 2010-02-10 丽水市意本阀门有限公司 Fixed ball lower valve stem structure
CN203098898U (en) * 2013-01-23 2013-07-31 成都乘风阀门有限责任公司 Motion prevention structure of valve rod of butterfly valve
CN103470790A (en) * 2013-09-12 2013-12-25 无锡市亚迪流体控制技术有限公司 Three eccentric metal seal butterfly valve
CN104633213A (en) * 2015-02-10 2015-05-20 无锡智能自控工程股份有限公司 External seal butterfly valve flow divider device
CN204533566U (en) * 2015-02-10 2015-08-05 无锡智能自控工程股份有限公司 Four eccentric two-way seal butterfly valves
CN204592324U (en) * 2015-03-06 2015-08-26 宁波一机阀门制造有限公司 A kind of novel soft sealing butterfly valve
CN205260872U (en) * 2015-12-16 2016-05-25 江苏神通阀门股份有限公司 Limit structure of valve rod

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040100877A (en) * 2004-03-29 2004-12-02 주식회사 삼진정밀 Valve disk regulator of butterfly valve
CN201401529Y (en) * 2009-03-27 2010-02-10 丽水市意本阀门有限公司 Fixed ball lower valve stem structure
CN203098898U (en) * 2013-01-23 2013-07-31 成都乘风阀门有限责任公司 Motion prevention structure of valve rod of butterfly valve
CN103470790A (en) * 2013-09-12 2013-12-25 无锡市亚迪流体控制技术有限公司 Three eccentric metal seal butterfly valve
CN104633213A (en) * 2015-02-10 2015-05-20 无锡智能自控工程股份有限公司 External seal butterfly valve flow divider device
CN204533566U (en) * 2015-02-10 2015-08-05 无锡智能自控工程股份有限公司 Four eccentric two-way seal butterfly valves
CN204592324U (en) * 2015-03-06 2015-08-26 宁波一机阀门制造有限公司 A kind of novel soft sealing butterfly valve
CN205260872U (en) * 2015-12-16 2016-05-25 江苏神通阀门股份有限公司 Limit structure of valve rod

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109826964A (en) * 2019-03-14 2019-05-31 江苏神通阀门股份有限公司 A kind of axial limit structure

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PB01 Publication
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Application publication date: 20160309

WD01 Invention patent application deemed withdrawn after publication