CN203037456U - 1500 t vertical type joint force testing machine anti-unstability apparatus - Google Patents
1500 t vertical type joint force testing machine anti-unstability apparatus Download PDFInfo
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- CN203037456U CN203037456U CN 201320031785 CN201320031785U CN203037456U CN 203037456 U CN203037456 U CN 203037456U CN 201320031785 CN201320031785 CN 201320031785 CN 201320031785 U CN201320031785 U CN 201320031785U CN 203037456 U CN203037456 U CN 203037456U
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Abstract
The utility model provides a 1500 t vertical type joint force testing machine anti-unstability apparatus arranged on a 1500 t vertical type joint force testing machine load frame lower platform and comprising an anti-unstability framework and an anti-unstability strutting apparatus. The apparatus can guarantee successful completion of tests; the lengths of strut bars are adjustable; supporting point positions are vertically adjustable; the apparatus is suitable for a plurality of specifications from 2-7/8 to 5-1/2 inches. The apparatus is provided with a plurality of sets of clamping apparatuses and is flexibly suitable for various types of tests; the apparatus does no need to be detached after A series tests and can cooperate with a bending apparatus for use in B series tests. The apparatus shortens a test period, minimizes manpower and material resource waste, avoids unstability of samples and does not generate any damage to equipment.
Description
Technical field
The utility model relates to the anti-unstability device of the vertical associating force tester of a kind of 1500t.
Background technology
The vertical associating force tester of 1500t mainly carries out diameter 2-7/8in at present to 5-1/2in tubing and casing box cupling benchmark test and slippage test.ISO13679 standard in the continual renovation is harsh day by day to the requirement of tubing and casing box cupling benchmark test, wherein in the composite force compression test, compressed value is close in the body yield strength, this has just caused the problem of pressure bar stabilization in the engineering mechanics, under the situation of no any anti-unstability measure, unstability very easily takes place in sample, is difficult to finish smoothly on request test, even causes unnecessary peril.
In the engineering mechanics, vertically (length direction) size is called rod member much larger than the member of horizontal (perpendicular to length direction) size, and steel pipe just belongs to a kind of of rod member.And the elongated straight-bar of pressurized, when increasing to certain numerical value along the axial pressure of bar, if be subjected to small interference, bar will become curved suddenly by original linear state, the phenomenon of this its equilibrium state of flip-flop, and it is stable to be called forfeiture, is called for short unstability.In process of the test, when unstable phenomenon occurring probably, its actual loaded does not but reach testing requirements load yet, continue to load and causes sample cripping test accident.
From the angle analysis of engineering mechanics, improve the stability of depression bar, major measure has: the bearing length that 1. reduces depression bar; 2. select reasonable sectional; 3. improve the restraint condition of rod end; 4. reasonably select material.In the test, load frame load value is axial load, and the load frame is given the sample imposed load in the vertical ground horizontal direction.In conjunction with the actual installation of sample in testing requirements and the test of load frame, analyze and draw following feasibility measure: 1. satisfying the length that as far as possible shortens test sample under the testing requirements condition; 2. improve the restraint condition of pipe end; 3. guarantee that sample and load frame execute the depth of parallelism of carrying direction, sample is in and keeps state perpendicular to load body panel (ground level direction), guarantee the axial property of load, reduce because sample body composition, wall unevenness cause the installation of unbalance stress and sample etc. all inside and outside influences that bring in factor with this.
After sample was loaded on the vertical load frame, liftoff had certain distance, as shown in Figure 1, can't be the anti-unstability of center of effort with ground; The sample both sides are eight hydraulic cylinders, and as if being center of effort with the hydraulic cylinder, in case unstability takes place, the load frame tilts, and will cause potential safety hazard and the economic loss that can not estimate.
At present, have only the anti-unstability device supporting with the horizontal combined force tester both at home and abroad, still do not have the anti-unstability device that matches with vertical associating force tester, demand researching and developing the new structure of design urgently, to satisfy the requirement of finishing code test.
Summary of the invention
At structural deficiency in the prior art, the purpose of this utility model provides the anti-unstability device of the vertical associating force tester of a kind of 1500t, based on the anti-unstability principle that improves pressure bar stabilization on the engineering mechanics, in conjunction with the requirement of ISO13679 standard to test, guarantee that sample and load frame execute the depth of parallelism of year direction, sample is in and keeps state perpendicular to load body panel (ground level direction).Thereby solved the problem of process of the test pilot scale instability, made test successfully to carry out safely.
For achieving the above object, the technical solution adopted in the utility model provides the anti-unstability device of the vertical associating force tester of a kind of 1500t, described anti-unstability device places the load frame lower platform of the vertical associating force tester of 1500t, and wherein: described anti-unstability device includes anti-unstability framework and anti-unstability bracing or strutting arrangement; Described anti-unstability framework includes main frame, body side frame or independent vertical beam and base cross members, be connected by bolted between described main frame and body side frame or the independent vertical beam, adopt bolt to be connected equally respectively between base cross members and main frame and body side frame or the independent vertical beam, thereby form a closed anti-unstability framework; The centre of a side, b side, c side, d side is provided with the support vertical beam around in the closed anti-unstability framework that described main frame and body side frame are formed, for fixedlying connected, be connected by bolted between between the support vertical beam of c side and the main frame between the support vertical beam of a side, b side, d side and the main frame;
Described anti-unstability bracing or strutting arrangement includes base for supporting, stop sleeve, telescopic adjustment nut and supporting slip, and base for supporting is that two square grip blocks are clamped and fastened on the support vertical beam of anti-unstability framework by four bolts; Stop sleeve is fixedly connected on the centre of base for supporting, be inserted in supporting slip in the stop sleeve, the back of supporting slip is provided with leading screw, and is connected with the telescopic adjustment nut thread, by adjusting telescopic adjustment nut, thereby regulate the length that supporting slip stretches out the telescopic adjustment nut.
Effect of the present utility model is that the present invention is closed anti-unstability device, and what this device can warranty test finishes smoothly, and the length of its support bar is adjustable, and supporting point position is vertically adjustable, applicable to 2-7/8 to 5-1/2 inch plurality of specifications; This device is provided with many cover jigs, is applicable to the polytype test flexibly, need not to dismantle this device behind the A campaign, can be used with bending apparatus when the B campaign.This device has shortened the test period, has reduced the manpower and materials waste, has both guaranteed that sample unstability can not take place, and can not cause any damage to equipment again.Use this device to be applied to 4.5 inches ISO13679(2009 version) special snapping head benchmark test, test is well on, and any security incident does not take place, and has verified the validity of this device.The present invention has filled up the blank of the anti-unstability device of the vertical associating force tester of 1500t in the world, makes that further simulated oil cased well stressing conditions becomes possibility, provides guarantee for further researching and developing production high added value tubing and casing.
Description of drawings
Fig. 1 is the vertical associating force tester of the 1500t of prior art;
Fig. 2 is the anti-unstability device installation diagram of A system's test of the present utility model;
Fig. 3 is that the anti-unstability device of A system of the present utility model is installed vertical view
Fig. 4 is the anti-unstability device installation diagram of B system of the present utility model;
Fig. 5 is that the anti-unstability device of B system of the present utility model is installed vertical view;
Fig. 6 is that the anti-unstability device of pure compression load test of the present utility model is installed vertical view;
Fig. 7 is anti-unstability framework installation side view of the present utility model;
Fig. 8 is band screw base for supporting side's plate of the present utility model and groove with holes base for supporting side plate;
Fig. 9 is independent vertical beam of the present utility model;
Figure 10 anti-unstability frame side view of the present utility model.
Among the figure:
1, load frame 2, anti-unstability framework 3, anti-unstability bracing or strutting arrangement
4, test sample 5, curved frames 6, push away bending apparatus
2-1, main frame 2-2, body side frame 2-3, base cross members 2-4, support vertical beam
2-5, independent vertical beam 3-1, base for supporting 3-1-1, band screw base for supporting side plate
3-1-2, groove with holes base for supporting side plate 3-2, stop sleeve 3-3, telescopic adjustment nut
3-4-1, A are that supporting slip 3-4-2, B are supporting slip 3-4-3, pure compression supporting slip
6-1, push away curved hydraulic cylinder 6-2, push away curved slips
Embodiment
Reach embodiment by reference to the accompanying drawings the vertical associating force tester of 1500t of the present utility model is prevented that the structure of unstability device is illustrated.
As shown in Figure 2, the anti-unstability device main body structured material of the vertical associating force tester of 1500t of the present utility model is selected square steel for use, bottom at anti-unstability framework, by two long beams, and four tail trimmers, in bolted mode, whole anti-unstability device is fixed in the lower platform of load frame, as center of effort, realize anti-unstability purpose with the lower platform of vertical associating force tester, reduced the influence of vertical associating force tester agent structure the biglyyest.
The vertical associating force tester of 1500t of the present utility model prevents that the unstability apparatus structure is, described anti-unstability device places load frame 1 lower platform of the vertical associating force tester of 1500t, and described anti-unstability device includes anti-unstability framework and anti-unstability bracing or strutting arrangement.
Described anti-unstability framework includes main frame 2-1, body side frame 2-2 or independent vertical beam 2-5 and base cross members 2-3, described main frame 2-1 is connected by bolted with body side frame 2-2, base cross members 2-3 adopts bolt to be connected equally respectively with main frame 2-1 and body side frame 2-2, thereby forms a closed anti-unstability framework; The centre of a side, b side, c side, d side is provided with and supports vertical beam 2-4 around in the closed anti-unstability framework that described main frame 2-1 and body side frame 2-2 form, 2-1 is for fixedlying connected between the support vertical beam 2-4 of a side, b side, d side and the main frame, is connected by bolted between the 2-1 between the support vertical beam 2-4 of c side and the main frame; When the B system that does not need to use tests and when making things convenient for parts installation and test circuit to connect, unclamp bolt and get final product removal; The d side of main frame 2-1 is body side frame when the test of A system and pure compression test, and when the test of B system, the d side is two independent vertical beam 2-5, as Fig. 7, Fig. 9 and shown in Figure 10.
Described anti-unstability bracing or strutting arrangement includes base for supporting 3-1, stop sleeve 3-2, telescopic adjustment nut 3-3 and supporting slip 3-4, base for supporting 3-1 is that two square grip blocks are clamped and fastened on the support vertical beam 2-4 of anti-unstability framework by four bolts, its position is according to different specification size test sample and different test types, and adjusting screw(rod) is fastening to the assigned address that supports on the vertical beam; Stop sleeve 3-2 is fixedly connected on the centre of base for supporting 3-1, be inserted in supporting slip 3-4 in the stop sleeve 3-2, the back of supporting slip 3-4 is provided with leading screw, and be threaded with telescopic adjustment nut 3-3, by adjusting telescopic adjustment nut 3-3, thereby regulate the length that supporting slip 3-4 stretches out telescopic adjustment nut 3-3.The trapezoid buckle leading screw at described supporting slip 3-4 back is the leading screw of diameter of phi 60.
According to the test kind, base for supporting 3-1 has designed two covers respectively, and supporting slip 3-4 has designed three covers respectively.
First cover of described base for supporting 3-1: band screw base for supporting side plate 3-1-1 and the base for supporting that has the band screw base for supporting side plate 3-1-2 of center pit; Second cover: band screw base for supporting side plate 3-1-1 and center fixation are connected with the base for supporting of stop sleeve 3-2, sleeve according to installation site a side, b side or c side, d side length difference to adapt to space requirement, as shown in Figure 6.Base for supporting 3-1 is by four long bolts, and clamping is installed in the relevant position of supporting on the vertical beam 2-4, and height is adjustable flexibly as requested.
When the test of A system, sample is equipped with the external pressure still, and described base for supporting 3-1 uses the first cover base for supporting 3-1 in framework a side, b side, uses the second cover base for supporting 3-1 in framework c, d side, the support vertical beam 2-4 that is installed in four direction goes up the relevant position, as shown in Figure 3.When the test of B system, described base for supporting 3-1 only installs in a of framework side, b side, uses the second cover base for supporting 3-1, is installed in the relevant position of supporting on the vertical beam 2-4, as shown in Figure 5.
When pure compression was tested, described base for supporting 3-1 used second cover, and the support vertical beam 2-4 that is installed in a side, b side, c side, d side four direction goes up the relevant position, as shown in Figure 6.
Described supporting slip 3-4 has designed three covers altogether: the first cover 3-4-1: the circular arc slips, and as shown in Figure 3, the card base radian of supporting slip is consistent with external pressure still outer wall radian; The second cover 3-4-2: the right angle slips of rising as high as the banks, as shown in Figure 4 and Figure 5, the size of rising as high as the banks is bent slips and is matched with pushing away; 3-4-3:120 ° of card base slips of the 3rd cover is suitable for directly blocking test sample, as shown in Figure 6.
In the use, the anti-unstability device of the vertical associating force tester of 1500t of the present utility model is in conjunction with testing requirements, and design has following three classes at different tests:
1, box cupling benchmark test-A is test
In the test of A system, sample will be subjected to the Action of Combined Loads of axial stretching, compression and interior pressure and external pressure, and the collar segments of sample is bestowed external pressure by the external pressure still is installed.
Anti-unstability device is loaded on load frame 1 lower platform, and the use body side frame 2-2 axial two ends of pressure cylinder four direction outside establishes the anti-unstability bracing or strutting arrangement 3 of quadruplet respectively, as shown in Figure 2.The supporting slip 3-4 of bracing or strutting arrangement 3 selects the special-purpose slips of first cover A system's test for use, its card base radian is consistent with external pressure still outer wall radian, slips back leading screw inserts base for supporting hole slot or sleeve, by regulating telescopic adjustment nut 3-3, is close at the trial on the external pressure still of sample; Anti-unstability bracing or strutting arrangement base 3-1 is fixed in supporting on the vertical beam 2-4 of anti-unstability device all around by screw rod, and position height is adjustable.Realize that by height and the adjusting telescopic adjustment nut 3-3 that regulates base for supporting 3-1 2-7/8 is to the anti-unstability of 5-1/2 inch specimen test.As shown in Figure 3.
2, box cupling benchmark test-B is test
There are two kinds of trystates need use anti-unstability device in the test of B system: compression+interior pressure+bending; Pure compression.
When sample is compressed, when interior pressure and crooked compound action, because calculating the strain that uses, angle of bend has only four groups, can only calculate the angle of bend of a direction, for make push away curved hydraulic cylinder push away pushing away as far as possible on the curved direction in curved crooked, reduce angular error, avoid error to cause the test sample unstability, this anti-unstability device is installed.
Identical with A when test system, anti-unstability device is loaded on load frame 1 lower platform, but does not re-use body side frame, and is to use two independent vertical beam 2-5, reserves installing space not only for curved frames 5 but also has kept closure and the steadiness of anti-unstability device; For making things convenient for the connection of each Unit Installation and test circuit, but body side frame opposite one side supports vertical beam 2-4 removal.The anti-unstability supporting slip slips 3-4-2 that is designed to rise as high as the banks, namely special-purpose slips is tested by the second cover B system, be supported on the both sides both direction that pushes away curved slips, as Fig. 4, shown in Figure 5, supporting slip back leading screw is inserted stop sleeve 3-2, regulate telescopic adjustment nut 3-3, make light subsides of supporting slip 3-4-2 push away curved slips 6-2, thereby do not influence the operate as normal that pushes away bending apparatus 6, thus, hydraulic cylinder is along the directive effect test sample of rising as high as the banks of supporting slip 3-4-2, and avoided the bending beyond the test sample generation strain monitoring and the unstability accident takes place.Bracing or strutting arrangement 3 height, flexible adjustable are suitable for 2-7/8 to the anti-unstability of 5-1/2 inch specimen test.As shown in Figure 5.
3, pure compression load test
Only be subjected to the test of pure compression load effect for sample, anti-unstability device installation side framework 2-2, four direction designs four 120 ° card angle supporting slip 3-4-3 supplemental support respectively around the appropriate location of test sample, guarantee sample at axially loaded, suitable dimensions: 2-7/8in to 5-1/2in.According to the specification of sample, according to actual conditions, small size oil pipe sample can only be installed a pair of anti-unstability bracing or strutting arrangement in 180 ° of directions.This point of load test of maximum compression load also can be used the anti-unstability scheme of this kind in the test of B system.As shown in Figure 6.
Claims (5)
1. the vertical associating force tester of 1500t is prevented the unstability device, and described anti-unstability device places the load frame lower platform of the vertical associating force tester of 1500t, it is characterized in that: described anti-unstability device includes anti-unstability framework and anti-unstability bracing or strutting arrangement;
Described anti-unstability framework includes main frame (2-1), body side frame (2-2) or independent vertical beam (2-5) and base cross members (2-3), described main frame (2-1) is connected by bolted with body side frame (2-2), base cross members (2-3) adopts bolt to be connected equally respectively with main frame (2-1) and body side frame (2-2), thereby forms a closed anti-unstability framework; Described main frame (2-1) is provided with support vertical beam (2-4) with the interior centre of a side, b side, c side, d side all around of closed anti-unstability framework that body side frame (2-2) is formed, for fixedlying connected, be connected by bolted between the support vertical beam (2-4) of c side and the main frame (2-1) between the support vertical beam (2-4) of a side, b side, d side and the main frame (2-1);
Described anti-unstability bracing or strutting arrangement includes base for supporting (3-1), stop sleeve (3-2), telescopic adjustment nut (3-3) and supporting slip (3-4), and base for supporting (3-1) is that two square grip blocks are clamped and fastened on the support vertical beam (2-4) of anti-unstability framework by four bolts; Stop sleeve (3-2) is fixedly connected on the centre of base for supporting (3-1), be inserted in supporting slip (3-4) in the stop sleeve (3-2), the back of supporting slip (3-4) is provided with leading screw, and be threaded with telescopic adjustment nut (3-3), by adjusting telescopic adjustment nut (3-3), thereby regulate the length that supporting slip (3-4) stretches out telescopic adjustment nut (3-3).
2. according to the anti-unstability device of the vertical associating force tester of the described 1500t of claim 1, it is characterized in that: described base for supporting (3-1) is band screw base for supporting side's plate (3-1-1) and the base for supporting that has the band screw base for supporting side plate (3-1-2) of center pit.
3. according to the anti-unstability device of the vertical associating force tester of the described 1500t of claim 1, it is characterized in that: described base for supporting (3-1) has the base for supporting of sleeve (3-2) for band screw base for supporting side's plate (3-1-1) and center fixation.
4. according to the anti-unstability device of the vertical associating force tester of the described 1500t of claim 1, it is characterized in that: described supporting slip (3-4) is circular arc slips or right angle rise as high as the banks slips or 120 ° of card base slips.
5. according to the anti-unstability device of the vertical associating force tester of the described 1500t of claim 1, it is characterized in that: the trapezoid buckle leading screw at described supporting slip (3-4) back is the leading screw of diameter of phi 60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320031785 CN203037456U (en) | 2013-01-22 | 2013-01-22 | 1500 t vertical type joint force testing machine anti-unstability apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320031785 CN203037456U (en) | 2013-01-22 | 2013-01-22 | 1500 t vertical type joint force testing machine anti-unstability apparatus |
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| Publication Number | Publication Date |
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| CN203037456U true CN203037456U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320031785 Expired - Fee Related CN203037456U (en) | 2013-01-22 | 2013-01-22 | 1500 t vertical type joint force testing machine anti-unstability apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115761A (en) * | 2013-01-22 | 2013-05-22 | 天津钢管集团股份有限公司 | 1500t vertical united force testing machine instability preventing device |
| CN108693023A (en) * | 2018-05-07 | 2018-10-23 | 吉林大学 | A kind of metal blank compression yield strength measurement experimental rig |
| CN109505845A (en) * | 2018-11-23 | 2019-03-22 | 航天精工股份有限公司 | A kind of bimetal structure fastener |
-
2013
- 2013-01-22 CN CN 201320031785 patent/CN203037456U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115761A (en) * | 2013-01-22 | 2013-05-22 | 天津钢管集团股份有限公司 | 1500t vertical united force testing machine instability preventing device |
| CN103115761B (en) * | 2013-01-22 | 2015-01-21 | 天津钢管集团股份有限公司 | 1500t vertical united force testing machine instability preventing device |
| CN108693023A (en) * | 2018-05-07 | 2018-10-23 | 吉林大学 | A kind of metal blank compression yield strength measurement experimental rig |
| CN109505845A (en) * | 2018-11-23 | 2019-03-22 | 航天精工股份有限公司 | A kind of bimetal structure fastener |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20150122 |
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| EXPY | Termination of patent right or utility model |