CN102645330B - Shifting clamping mechanism of safety valves - Google Patents

Shifting clamping mechanism of safety valves Download PDF

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Publication number
CN102645330B
CN102645330B CN201210125796.4A CN201210125796A CN102645330B CN 102645330 B CN102645330 B CN 102645330B CN 201210125796 A CN201210125796 A CN 201210125796A CN 102645330 B CN102645330 B CN 102645330B
Authority
CN
China
Prior art keywords
safety valve
air inlet
clamping
cylinder
chassis
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
CN201210125796.4A
Other languages
Chinese (zh)
Other versions
CN102645330A (en
Inventor
朱海清
闵加丰
盛卫锋
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.)
Jiangnan University
Original Assignee
Jiangnan University
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 Jiangnan University filed Critical Jiangnan University
Priority to CN201210125796.4A priority Critical patent/CN102645330B/en
Publication of CN102645330A publication Critical patent/CN102645330A/en
Application granted granted Critical
Publication of CN102645330B publication Critical patent/CN102645330B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to a shifting clamping mechanism of safety valves. The mechanism comprises a base frame, wherein a base disc is arranged at the upper end of the base frame; an air inlet disc is arranged at the middle part of the base disc; an air inlet hole is arranged on the air inlet disc; the air inlet hole is connected with the air inlet pipe; the shifting clamping mechanism is characterized in that a portal frame is arranged at each of two sides of the base disc; a cylinder guide track is erected at the upper end of the portal frame; two hydraulic cylinders or air cylinders which can move left and right are arranged on the cylinder guide track; a clamping disc for holding the safety valve is arranged at the end part of a piston rod of each of the hydraulic cylinders or air cylinders; and a plurality of sealing rings are wound on the base disc. The shifting clamping mechanism is used on a safety valve testing table in match; therefore, the problem of clamping sealing (air inlet sealing) of safety valves of different specifications and models during testing can be solved efficiently, and the operation personnel are replaced for transport of the safety valves, and the working condition of the safety valve test is improved.

Description

The displacement clamping body of safety valve
Technical field
The present invention relates to a kind of displacement clamping body of safety valve, especially a kind of clamping body when verifying for safety valve off-line.
Background technology
Safety valve off-line verification refers to pulls down safety valve from protected equipment, send check bit to carry out adjustment.During safety valve off-line verification, opening pressure adjustment and experiments of sealing performance need to complete at safety valve checkout platform.At present, the clamping platform of safety valve checkout platform all adopts three-jaw clamp system, that is: first safety valve is placed on the bottom cushion block of pairing, bottom cushion block there is O-ring seal (plain cushion or O RunddichtringO), after on the bottom cushion block that safety valve is placed on O-ring seal, more mobile three claws embrace safety valve.Then, cylinder (or hydraulic cylinder) piston rod bottom clamping platform is by bottom cushion block upwards jack-up.Due to the flange (or bottom cushion block) three claws having outstanding hook block bottom safety valve, thus the inlet flange of safety valve and bottom cushion block are compressed, when Detecting medium is entered in safety valve, accomplish that densification is not leaked.
But three-jaw clamp system exists a lot of drawback: first, not only want the claw of configure dedicated and the base plate of the band inverted T shape groove needing processing and manufacturing special fixes three claws and three claws can be moved; Secondly, the safety valve of each different size model all needs to be equipped with bottom cushion block special separately and is used for being sealed into gas port; Further, safety valve needs artificial (or forklift, crane) to move on clamping platform.Above-mentioned drawback makes its inefficiency, personnel labor intensity large, and during heavy caliber safety valve testing, problem seems especially outstanding.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of displacement clamping body of safety valve is provided, efficiently can either solve clamping sealing problem during different size model safety valve testing, and the carrying work that operating personnel complete safety valve can be substituted, improve the condition of work of safety valve testing.
According to technical scheme provided by the invention, the displacement clamping body of described safety valve, comprises underframe, and at the upper end installation chassis of described underframe, install air inlet disk in the middle part on chassis, air inlet disk is provided with air admission hole, and this air admission hole is connected with draft tube; Feature is: arrange portal frame in the both sides on described chassis, at described portal frame upper end erection cylinder body guide rail, cylinder body guide rail being provided with two hydraulic cylinders or cylinder that can move left and right, being provided with the chuck for embracing safety valve in the end of the piston rod of described hydraulic cylinder or cylinder; Described chassis is provided with multiple O-ring seal around air inlet disk.
Described portal frame is arranged on guide rail, and portal frame can move forward and backward along guide rail.
The displacement clamping body of safety valve of the present invention provides a kind of without the need to three-jaw and bottom cushion block, can solve the new method of safety valve displacement, clamping (being sealed into gas port) simultaneously; By supporting for safety valve checkout platform for displacement clamping structure machine of the present invention, not only efficiently can either solve clamping sealing (being sealed into gas port) problem during different size model safety valve testing, and the carrying work that operating personnel complete safety valve can be substituted, improve the condition of work of safety valve testing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in the figure: the displacement clamping body of safety valve comprises draft tube 1, underframe 2, guide rail 3, portal frame 4, cylinder body guide rail 5, hydraulic cylinder or cylinder 6, piston rod 7, chuck 8, chassis 9, O-ring seal 10, air inlet disk 11 etc.
The present invention includes underframe 2, at the upper end installation chassis 9 of described underframe 2, in the middle part on chassis 9, air inlet disk 11 is installed, air inlet disk 11 is provided with air admission hole, this air admission hole is connected with draft tube 1, place and be pressed in the safety valve on chassis 9 for verification medium is imported, to carry out opening pressure adjustment and experiments of sealing performance; Described chassis 9 is provided with around air inlet disk 11 O-ring seal 10 of multiple plurality of specifications, seals for the safety valve of different size model;
Arrange portal frame 4 in the both sides on described chassis 9, described portal frame 4 arranges on guides 3, and portal frame 4 can move forward and backward along guide rail 3; At described portal frame 4 upper end erection cylinder body guide rail 5, cylinder body guide rail 5 being provided with two hydraulic cylinders that can move left and right or cylinder 6, being provided with the chuck 8 for embracing safety valve in the end of the piston rod 7 of described hydraulic cylinder or cylinder 6.
The course of work of the present invention is: when needing the safety valve of adjustment to be placed on before clamping body, and portal frame 4 moves to above safety valve, and hydraulic cylinder or cylinder 6 move in opposite directions, are held tightly by safety valve with chuck 8; Make portal frame 4 move to directly over chassis 9 again (to be located by detent mechanism), the piston rod 7 of hydraulic cylinder or cylinder 6 stretches out, and continues to pressing down, until safety valve flange in the bottom compresses by chuck 8 after safety valve is placed into chassis 9; Now, hydraulic cylinder or cylinder 6 provide enough pressure to be pressed on by safety valve on the O-ring seal 10 on chassis 9, guarantee not reveal between safety valve inlet flange and chassis 9; Then, open verification valve, verification medium enters in safety valve by draft tube 1 and air inlet disk 9, starts to carry out opening pressure adjustment and experiments of sealing performance.

Claims (1)

1. the displacement clamping body of a safety valve, comprise underframe (2), at the upper end installation chassis (9) of described underframe (2), in the middle part of chassis (9), air inlet disk (11) is installed, air inlet disk (11) is provided with air admission hole, and this air admission hole is connected with draft tube (1); It is characterized in that: in the both sides of described chassis (9), portal frame (4) is set, in described portal frame (4) upper end erection cylinder body guide rail (5), cylinder body guide rail (5) being provided with two hydraulic cylinders that can move left and right or cylinder (6), being provided with the chuck (8) for embracing safety valve in the end of the piston rod (7) of described hydraulic cylinder or cylinder (6); Described chassis (9) are provided with multiple O-ring seal (10) around air inlet disk (11);
Described portal frame (4) is arranged on guide rail (3), and portal frame (4) can move forward and backward along guide rail (3);
Described chassis (9) are provided with around air inlet disk (11) O-ring seal (10) of multiple plurality of specifications, seal for the safety valve of different size model.
CN201210125796.4A 2012-04-25 2012-04-25 Shifting clamping mechanism of safety valves Expired - Fee Related CN102645330B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210125796.4A CN102645330B (en) 2012-04-25 2012-04-25 Shifting clamping mechanism of safety valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210125796.4A CN102645330B (en) 2012-04-25 2012-04-25 Shifting clamping mechanism of safety valves

Publications (2)

Publication Number Publication Date
CN102645330A CN102645330A (en) 2012-08-22
CN102645330B true CN102645330B (en) 2015-05-20

Family

ID=46658292

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210125796.4A Expired - Fee Related CN102645330B (en) 2012-04-25 2012-04-25 Shifting clamping mechanism of safety valves

Country Status (1)

Country Link
CN (1) CN102645330B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104180943A (en) * 2014-07-19 2014-12-03 芜湖恒坤汽车部件有限公司 Oil pressure airtightness testing device for clutch pump
CN104266800B (en) * 2014-09-16 2017-02-15 芜湖市华益阀门制造有限公司 Air impermeability detecting table for sluice valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100804239B1 (en) * 2001-12-22 2008-02-18 주식회사 포스코 Cylinder Tester
CN2921790Y (en) * 2006-07-04 2007-07-11 王春年 Eccentric disc clamp and cylinder inverted top type safety valve check cartridge
CN101329224A (en) * 2008-07-21 2008-12-24 江南大学 Safety valve checking method
CN201867339U (en) * 2010-10-28 2011-06-15 苏州威尔迪威阀业有限公司 General testing device for big valve
CN102267628A (en) * 2010-12-15 2011-12-07 苏州新区科兴威尔电子有限公司 Processed-plate conveying mechanism

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Publication number Publication date
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Granted publication date: 20150520

Termination date: 20160425