CN203490128U - Tension test device for gate valve rod - Google Patents
Tension test device for gate valve rod Download PDFInfo
- Publication number
- CN203490128U CN203490128U CN201320599879.7U CN201320599879U CN203490128U CN 203490128 U CN203490128 U CN 203490128U CN 201320599879 U CN201320599879 U CN 201320599879U CN 203490128 U CN203490128 U CN 203490128U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- support seat
- gate valve
- flashboard
- tension test
- 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
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a tension test device for a gate valve rod. The tension test device for the gate valve rod comprises an upper support base, a lower support base, an upper clamp and a lower clamp; the upper support base is positioned above the lower support base; the upper clamp is mounted on the upper support base for mounting a valve rod nut; a space for containing the valve rod nut is arranged in the upper clamp; the lower clamp is arranged on the lower support base and is used for being connected with a gate plate. The tension test device for the gate valve rod can meet the demands of the tension test of valve rods and gate plates of various different sizes, and the repeated design is reduced.
Description
Technical field
The utility model relates to gate valve rod extension test technical field, particularly relates to a kind of gate valve rod tensile test apparatus.
Background technology
In recent years, along with a large amount of construction of domestic oil transportation long-distance transport pipes, on the pipe layings such as Shanghai and Nanjing, river in Zhejiang Province pipeline, middle Lip river line, the peaceful interconnection in Ji, used a large amount of steel gate valves.These valves are at ordinary times in normally closed or normally open, and for safety during emergency opening after guaranteeing to open under valve insertion superpressure or close for a long time, gate valve product standard is stipulated the Reliability of Microprocessor of gate valve rod and flashboard.5.8.7 bar regulation in API600 < < Bolted Bonnet Steel Gate Valves for Petroleum and Natural Gas Industries > > " intensity of the strength of joint of valve rod and flashboard and valve rod bar portion, under axial loading should over the intensity of threaded stem root ".According to the steel gate valve > > of GB/T 12234-2007 < < oil, gas industrial Stud connection valve gap, " for rising stem (RS.) support rack type gate valve; if while there is the stuck accident of flashboard, the damage of valve rod should appear at outside gate valve pressure-bearing region.Valve rod in gate valve pressure-bearing region and the connector of flashboard and valve rod each several part intensity should be greater than the intensity of thread root ".Therefore need to carry out combination broach test to gate valve closing member, wedge-type flashboard, valve rod and stem nut are grouped together, with unit clamp, connect flashboard center and be installed on stem nut with special tooling, with cupping machine, clamping two frock clamps stretches, until break destruction, thereby whether check gate valve meets standard-required.
Gate valve rod tensile test apparatus is mainly used in the strength test that the valve rod of steel gate valve is connected with flashboard.Steel gate valve is according to the requirement of environment for use, conventionally by inside nominal diameter and nominal pressure, be divided into plurality of specifications, every kind of its valve rod of specification valve and flashboard have bigger difference in physical dimension, therefore also there is no a kind of test unit that can meet the requirement of various different size valve rods and flashboard tension test.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of gate valve rod tensile test apparatus, can meet the requirement of various different size valve rods and flashboard tension test, reduces design iterations.
The utility model solves the technical scheme that its technical matters adopts: a kind of gate valve rod tensile test apparatus is provided, comprise upper support seat, lower support seat, upper fixture and lower clamp, described upper support seat is positioned at the top of described lower support seat, described upper fixture is arranged on upper support seat, be used for installing stem nut, the inside of described upper fixture is provided with the space that holds stem nut; Described lower clamp is arranged on lower support seat, for connecting flashboard.
Described upper fixture is connected with upper support seat by screw thread.
Between described upper fixture and upper support seat, be also provided with spheric washer.
The first half of described upper fixture is provided with guard plate apparatus.
Described lower clamp is connected with lower support seat by flat pliers mouth.
Described lower clamp connects flashboard by flashboard pin.
Beneficial effect
Owing to having adopted above-mentioned technical scheme, the utility model compared with prior art, there is following advantage and good effect: the features such as the utility model is safe and reliable, easy for installation, applied widely, go for the tension test of the gate valve rod of all size specification.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment are only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment of the present utility model relates to a kind of gate valve rod tensile test apparatus, as shown in Figure 1, comprise upper support seat 1, lower support seat 2, upper fixture 3 and lower clamp 4, described upper support seat 1 is positioned at the top of described lower support seat 2, described upper fixture 3 is arranged on upper support seat 1, be used for installing stem nut, the inside of described upper fixture 3 is provided with the space that holds stem nut; Described lower clamp 4 is arranged on lower support seat 2, for connecting flashboard.Described upper fixture 3 is connected with upper support seat 1 by screw thread.Between described upper fixture 3 and upper support seat 1, be also provided with spheric washer 5.The first half of described upper fixture 3 is provided with guard plate apparatus 6.Described lower clamp 4 is connected with lower support seat 2 by flat pliers mouth 7.Described lower clamp 4 connects flashboard by flashboard pin 8.
Valve rod cupping machine stretching clamp comprises fixture and lower clamp, and upper fixture is used for installing stem nut and is connected with upper support seat, and lower clamp is used for connecting flashboard and is connected with lower support seat.On the basis of the force analysis of gate valve rod, concrete jig Design is as follows: upper fixture comprises upper support seat, upper clamp body, nut, spheric washer and guard plate apparatus, wherein going up clamp body is connected with upper support seat by screw thread, during design, stem nut can be inserted in to upper clamp body, according to the range of size of valve rod, upper clamp body bottom perforate 82mm, inner space height 250mm; Lower clamp comprises lower support seat, flat pliers mouth, lower clamp body, flashboard pin composition, lower clamp body is connected with lower support seat by flat-nose pliers, during design, consider the maximum 70mm of flat pliers mouth opening, so the maximum 70mm of lower clamp body bottom thickness, the size of flashboard pin is chosen according to flashboard diameter.During this stretching clamp test, to unique requirement of sample, be on flashboard, to punch, to meet the installation requirement of flashboard pin, compare other disposal routes of flashboard as modes such as welding, grindings, more economical, more convenient.
Using method of the present utility model is as follows:
(1) while testing, first valve rod is penetrated to upper clamp body, then stem nut is installed and is threaded to correct position;
(2) flashboard is installed, valve rod is inserted in the T-shaped groove of flashboard bottom;
(3) lower clamp body is installed, with flashboard pin, lower clamp body is connected with flashboard;
(4) adjust lower support seat to correct position, with flat pliers mouth, clamp lower clamp body;
(5) complete sample and install, can start tension test.
Claims (6)
1. a gate valve rod tensile test apparatus, comprise upper support seat (1), lower support seat (2), upper fixture (3) and lower clamp (4), described upper support seat (1) is positioned at the top of described lower support seat (2), it is characterized in that, described upper fixture (3) is arranged on upper support seat (1), be used for installing stem nut, the inside of described upper fixture (3) is provided with the space that holds stem nut; It is upper that described lower clamp (4) is arranged on lower support seat (2), for connecting flashboard.
2. gate valve rod tensile test apparatus according to claim 1, is characterized in that, described upper fixture (3) is connected with upper support seat (1) by screw thread.
3. gate valve rod tensile test apparatus according to claim 1, is characterized in that, between described upper fixture (3) and upper support seat (1), is also provided with spheric washer (5).
4. gate valve rod tensile test apparatus according to claim 1, is characterized in that, the first half of described upper fixture (3) is provided with guard plate apparatus (6).
5. gate valve rod tensile test apparatus according to claim 1, is characterized in that, described lower clamp (4) is connected with lower support seat (2) by flat pliers mouth (7).
6. gate valve rod tensile test apparatus according to claim 1, is characterized in that, described lower clamp (4) connects flashboard by flashboard pin (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320599879.7U CN203490128U (en) | 2013-09-27 | 2013-09-27 | Tension test device for gate valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320599879.7U CN203490128U (en) | 2013-09-27 | 2013-09-27 | Tension test device for gate valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490128U true CN203490128U (en) | 2014-03-19 |
Family
ID=50260950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320599879.7U Expired - Fee Related CN203490128U (en) | 2013-09-27 | 2013-09-27 | Tension test device for gate valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203490128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741352A (en) * | 2017-09-01 | 2018-02-27 | 上海市特种设备监督检验技术研究院 | Fixing device for valve rod top in steel gate valve closure member strength-testing machine |
-
2013
- 2013-09-27 CN CN201320599879.7U patent/CN203490128U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741352A (en) * | 2017-09-01 | 2018-02-27 | 上海市特种设备监督检验技术研究院 | Fixing device for valve rod top in steel gate valve closure member strength-testing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20140927 |
|
| EXPY | Termination of patent right or utility model |