CN107741352A - Fixing device for valve rod top in steel gate valve closure member strength-testing machine - Google Patents
Fixing device for valve rod top in steel gate valve closure member strength-testing machine Download PDFInfo
- Publication number
- CN107741352A CN107741352A CN201710780382.8A CN201710780382A CN107741352A CN 107741352 A CN107741352 A CN 107741352A CN 201710780382 A CN201710780382 A CN 201710780382A CN 107741352 A CN107741352 A CN 107741352A
- Authority
- CN
- China
- Prior art keywords
- closure member
- installation frame
- valve rod
- fixing device
- gate valve
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
Abstract
The present invention relates to a kind of fixing device for being used for valve rod top in steel gate valve closure member strength-testing machine, including tensile connector, installation frame is connected with the tensile connector, the bottom surface of the installation frame is provided with the U-shaped opening for being put into closure member top.The present invention can be applied to the closure member of various different size models.
Description
Technical field
The present invention relates to steel gate valve closure member technical field of measurement and test, is used for steel gate valve closure member more particularly to one kind
The fixing device on valve rod top in strength-testing machine.
Background technology
Steel gate valve closure member refers to the sub-assembly of flashboard and valve rod.Steel gate valve is wide in oil, petrochemical industry, power system
General application, the gate valve used in such systems are generally in normally opened or normally off.Closed mode is chronically at when one
When gate valve needs to open, flashboard may occur by the situation of valve seat " stuck " due to long-term be not used.If firmly open by force
(such as using electric device) is opened, torque is larger, in the case where flashboard is stuck, valve rod can be broken.If valve stem crack
Position is located inside valve pocket, can not realize that valve rod has broken from outside, can produce gate valve can also normal operating illusion, this will be to whole
The operation of individual system brings high risks.
API 600-2015《Flange and the steel gate valve with Stud connection bonnet of butt welding connection end》Middle 5.8.8 and GB/
T12234-2007《The steel gate valve of oil, gas industrial Stud connection bonnet》4.10.5 it is required in：If generation flashboard
During stuck accident, the damage of valve rod should be appeared in outside gate valve bearing area.Valve rod and flashboard within gate valve bearing area
Connector and the intensity of valve rod each several part should be greater than the intensity of thread root.It is required to work as valve rod and flashboard in the two standards
When carrying out breaking test, fracture failure position should be in threaded stem root.If other positions produce failure during stretching, show
The design and manufacture of product are against regulation.
To avoid gate valve from occurring above-mentioned risk in system operation, to steel gate valve closure member intensity in addition to calculating, also need
Carry out verification experimental verification.The mode of verification experimental verification is：Steel gate valve closure member is fixed on large-scale cupping machine, to closure member
Apply the pulling force constantly strengthened, finally turn off part destruction.
Closure member due to it is complex-shaped, irregular, volume is big, weight is heavy, specifications and models are different, logical on cupping machine
It can not meet clamping requirement with fixture；And different closure member when carrying out tension test, it is necessary to change different fixtures, and due to
Fixture is replaced as frequently as, adds working strength, reduces operating efficiency.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of for valve rod in steel gate valve closure member strength-testing machine
The fixing device on top, the closure member of various different size models can be applied to.
The technical solution adopted for the present invention to solve the technical problems is：One kind is provided and is used for steel gate valve closure member intensity
The fixing device on valve rod top in testing machine, including tensile connector, installation frame, the installation are connected with the tensile connector
The bottom surface of framework is provided with the U-shaped opening for being put into closure member top.
The side of the installation frame is additionally provided with protective cover plate, and the protective cover plate is put into installation frame on closure member top
Installation frame is closed after interior.
The upper and lower ends of the side of the installation frame are provided with square washer, between the square washer and installation frame
Leave space and form chute；The protective cover plate inserts the chute and is closed installation frame.
The square washer is fixed on the upper and lower ends of the side of the installation frame by nut.
The installation frame is rectangular parallelepiped structure.
Beneficial effect
As a result of above-mentioned technical scheme, the present invention compared with prior art, has the following advantages that and actively imitated
Fruit：The present invention enables valve rod to be conveniently located into without wearing by setting U-shaped opening on the installation frame bottom surface of fixing device
Fixing device is crossed, greatly mitigates the workload of operating personnel, fixing device of the invention causes to different model specification
When valve rod is stretched, upper jaw need not be exchanged, valve rod can be fixed directly, greatly facilitate experiment, alleviate work
Amount.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation when present invention uses；
Fig. 3 is the structural representation that the present invention covers protective cover plate.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Embodiments of the present invention are related to a kind of fixation for being used for valve rod top in steel gate valve closure member strength-testing machine
Device, as shown in figure 1, including tensile connector 1, installation frame 2, the bottom of the installation frame 2 are connected with the tensile connector 1
Face is provided with the U-shaped opening 3 for being put into closure member top.In present embodiment, the installation frame 2 is rectangular parallelepiped structure.
Sufficiently large U-shaped opening design on installation frame bottom surface, enables valve rod easily to put into installation frame, and nothing
The size of valve rod need to be considered.U-shaped opening design be different from general circular hole design, enable valve rod be conveniently located into without through
Fixing device, greatly mitigate the workload of operating personnel.
As shown in Fig. 2 the closure member top being put into is because valve stem nut B diameter is more than valve rod A, therefore can be shelved on
In the U-shaped opening 3 of the bottom surface of installation frame 2, so as to realize the function that closure member top is fixed.As can be seen here, the valve rod
The device that top is fixed has a versatility, and different model specification, size for connection and profile valve rod not of uniform size can be easily
Fixed, without changing chuck, the device versatility is extremely strong, individually prepares fixing device without every deck valve door, has both saved examination
Test cost and shorten the time before experiment again.
The U-shaped opening 3 on the bottom surface of installation frame 2 that valve rod A passes through fixing device, subject closure member top is shelved on solid
Determine in the installation frame 2 of device, the valve stem nut B on closure member top is shelved in U-shaped opening 3, and closure member bottom clamping is being drawn
Stretch in testing machine lower clamp, after confirming fixing situation, proceed by tension test.It is seen that when the fixing device uses
It is very convenient.
As shown in figure 3, the side of the installation frame 2 is additionally provided with protective cover plate 4, the protective cover plate 4 is on closure member
Installation frame 2 is closed after being put into installation frame 2 in portion.The upper and lower ends side of being provided with of the side of the installation frame 2
Shape pad 5, space is left between the square washer 5 and installation frame 2 and forms chute；The protective cover plate 4 inserts the cunning
Groove is closed installation frame 2.It is noted that the square washer 5 can be fixed on the installing frame by nut 6
The upper and lower ends of the side of frame 2.
The protective cover plate is equipped with for fixing device, after valve rod is put into the installation frame of fixing device, protective cover plate is closed
Close, once there is the fracture of valve rod in drawing process, can guarantee that corresponding safety.
Claims (5)
1. a kind of fixing device for being used for valve rod top in steel gate valve closure member strength-testing machine, including tensile connector, it is special
Sign is, installation frame is connected with the tensile connector, and the bottom surface of the installation frame is provided with for being put into closure member
The U-shaped opening in portion.
2. the fixing device according to claim 1 for being used for valve rod top in steel gate valve closure member strength-testing machine, its
It is characterised by, the side of the installation frame is additionally provided with protective cover plate, and the protective cover plate is put into installing frame on closure member top
Installation frame is closed after in frame.
3. the fixing device according to claim 2 for being used for valve rod top in steel gate valve closure member strength-testing machine, its
Be characterised by, the upper and lower ends of the side of the installation frame are provided with square washer, the square washer and installation frame it
Between leave space formed chute；The protective cover plate inserts the chute and is closed installation frame.
4. the fixing device according to claim 3 for being used for valve rod top in steel gate valve closure member strength-testing machine, its
It is characterised by, the square washer is fixed on the upper and lower ends of the side of the installation frame by nut.
5. the fixing device according to claim 1 for being used for valve rod top in steel gate valve closure member strength-testing machine, its
It is characterised by, the installation frame is rectangular parallelepiped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780382.8A CN107741352A (en) | 2017-09-01 | 2017-09-01 | Fixing device for valve rod top in steel gate valve closure member strength-testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780382.8A CN107741352A (en) | 2017-09-01 | 2017-09-01 | Fixing device for valve rod top in steel gate valve closure member strength-testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107741352A true CN107741352A (en) | 2018-02-27 |
Family
ID=61235170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710780382.8A Pending CN107741352A (en) | 2017-09-01 | 2017-09-01 | Fixing device for valve rod top in steel gate valve closure member strength-testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107741352A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988008491A1 (en) * | 1987-04-21 | 1988-11-03 | Movats Incorporated | Stem load determining system |
| CN201397267Y (en) * | 2009-04-17 | 2010-02-03 | 中冶天工上海十三冶建设有限公司 | Adjustable protection plate for experiment |
| CN203490128U (en) * | 2013-09-27 | 2014-03-19 | 上海市特种设备监督检验技术研究院 | Tension test device for gate valve rod |
| CN103983510A (en) * | 2014-05-30 | 2014-08-13 | 浙江省泵阀产品质量检验中心 | Clamp special for combined tension test of gate valve closing member |
-
2017
- 2017-09-01 CN CN201710780382.8A patent/CN107741352A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988008491A1 (en) * | 1987-04-21 | 1988-11-03 | Movats Incorporated | Stem load determining system |
| CN201397267Y (en) * | 2009-04-17 | 2010-02-03 | 中冶天工上海十三冶建设有限公司 | Adjustable protection plate for experiment |
| CN203490128U (en) * | 2013-09-27 | 2014-03-19 | 上海市特种设备监督检验技术研究院 | Tension test device for gate valve rod |
| CN103983510A (en) * | 2014-05-30 | 2014-08-13 | 浙江省泵阀产品质量检验中心 | Clamp special for combined tension test of gate valve closing member |
Non-Patent Citations (2)
| Title |
|---|
| （苏）Л.С.瓦特鲁申，钱淑英，王振伦译: "《有色金属拉伸》", 30 November 1988, 冶金工业出版社 * |
| 马宏波、李昱、徐维普、符明海、罗晓明: "压力管道用阀门阀杆拉伸试验装置的研究", 《特种设备安全技术》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180227 |
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| RJ01 | Rejection of invention patent application after publication |