CN201199213Y - Microcomputer-controlled still-loading anchoring tester - Google Patents
Microcomputer-controlled still-loading anchoring tester Download PDFInfo
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- CN201199213Y CN201199213Y CNU2008200605771U CN200820060577U CN201199213Y CN 201199213 Y CN201199213 Y CN 201199213Y CN U2008200605771 U CNU2008200605771 U CN U2008200605771U CN 200820060577 U CN200820060577 U CN 200820060577U CN 201199213 Y CN201199213 Y CN 201199213Y
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Abstract
The utility model introduces a dead-load anchoring experimental machine controlled by a microcomputer, which consists of a host, a sand-wall body and an electro-hydraulic servo system controlled by a microcomputer and is characterized in that: A. the host comprises a backing board, a left loading beam, a transverse rod, a middle separating beam, a front safety net, a rear safety net, an upper safety net, a lower safety net and a right loading beam; the transverse rod penetrates a framework and is jointed with the left loading beam, the middle separating beam and the right loading beam so as to form a loading framework with four transverse rods; fixed safety nets are arranged at the front and the back of the framework; a movable safety net is arranged above the framework; the backing board is jointed with the left loading beam; B. the two ends of an anchoring host are respectively provided with the sand-wall body which comprises a case body which is filled with sands; handles are arranged on three side surfaces and the top surface of the case body and rolling wheels are arranged at the bottom surface of the case body; and C. the electro-hydraulic servo system controlled by a microcomputer comprises a load sensor, a through jack, a front-clamping jack, a displacement sensor system and a hydraulic system.
Description
Technical field
The utility model relates to a kind of static load anchoring testing machine, especially a kind of system controlled by computer static load anchoring testing machine, and it is mainly used in the static load anchoring property test of steel strand wires-ground tackle in the infrastructure constructions such as railroad bridge and water conservancy, electric power.Be used for detecting, whether reach the regulation requirement with the mechanical property of judging steel strand anchorage by the mechanical property test of GB/T14370-2007 " use for tendon ground tackle, anchor clamps and connector ".
Background technology
The content of the test that the mechanical property of GB/T14370-2007 " use for tendon ground tackle, anchor clamps and connector " detects comprises: in presstressed reinforcing steel-ground tackle/anchor clamps/connector assembly, and the test of the static load anchoring property of ground tackle.The utility model is mainly tested the static load anchoring property of presstressed reinforcing steel-ground tackle.Specifically process of the test is, makes steel strand wires, anchor circle, intermediate plate assembly be fixed on the main frame two ends with manual type, and an end connects with backing plate, and the other end connects with the punching lifting jack.Must earlier the initial stress of each root prestressing steel be mixed well before loading.Formal load step is: press 4 grades of constant speed loadings in 20%, 40%, 60%, 80% fen of prestressing steel tensile strength standard value, the loading velocity per minute is preferably 100MPa, reach 80% after, held lotus 1 hour, progressively be loaded on destruction subsequently.Thereby the overall strain value of the stressed length of assembly when obtaining the ground tackle efficiency factor of assembly and reaching the actual measurement ultimate tension.
If but loading with manual control testing machine, that is when formal the loading, and loading of classification constant speed and guarantor are carried speed and are had jiggly situation, have also increased operating personnel's working strength simultaneously.
The utility model content
The purpose of this utility model: aim to provide a kind of system controlled by computer static load anchoring testing machine, overcome existing static load anchoring testing machine manual loading, protect that to carry precision low, cause the working strength height, measure the defective of misalignment.Both improved test accuracy, rate of loading steadily, also have simultaneously easy to use, save labour's system controlled by computer static load anchoring testing machine, satisfy of the requirement of GB/T14370-2007 " use for tendon ground tackle, anchor clamps and connector " standard to checkout equipment.
The technical scheme in the invention for solving the technical problem is as follows:
This system controlled by computer static load anchoring testing machine comprises main frame, husky wall car body, microcomputer controlled electro-hydraulic servo system;
Described main frame comprise backing plate, left carrier bar, whippletree, in every beam, front and back safety net, safety net, right carrier bar up and down; Wherein said whippletree run through whole framework and connect left carrier bar, in every beam, right carrier bar, form four whippletree load frame; Fixedly safety net is housed before and after this framework, and the framework top is equipped with movable safety net; Described backing plate connects with left carrier bar.
Described husky wall car body is positioned over the two ends of anchoring main frame respectively, and described husky wall car body comprises casing, inner perfusion yellow sand.
Described microcomputer controlled electro-hydraulic servo system comprises load sensor, punching lifting jack, preceding cassette lifting jack, displacement transducer and hydraulic system.
This system controlled by computer static load anchoring testing machine according to above technical scheme proposes has following beneficial effect:
1, adopt the utility model system controlled by computer static load anchoring testing machine to do the detection of steel strand anchorage static load anchoring property according to the rate of loading and the loading procedure of standard code.
2, save manpower: only need a people just can test, owing to be that the computer control line data of going forward side by side is handled, so horse back just can be known test findings after the off-test.
3, adopt the electro-hydraulic servo control method to control, loading speed is controlled, realizes the constant speed loading, protects automatically and carries, test convenient and swift, the automaticity height.Because the test period of each test is grown (between 1～2 hour), in software interface, real-time prompting test progress, convenient understanding test situation.
Description of drawings
Fig. 1 is the structural representation of the system controlled by computer static load anchoring testing machine that provides of the utility model;
Fig. 2 is the electrohydraulic servo system hydraulic schematic diagram of the system controlled by computer static load anchoring testing machine that provides of the utility model;
Fig. 3 is the displacement transducer fundamental diagram of the system controlled by computer static load anchoring testing machine that provides of the utility model;
Fig. 4 is the system controlled by computer servo-drive system theory diagram of the system controlled by computer static load anchoring testing machine that provides of the utility model.
Embodiment
Further specify a kind of better embodiment of the present utility model below in conjunction with accompanying drawing:
Shown in Fig. 1 the utility model structural representation, the utility model system controlled by computer static load anchoring testing machine comprises main frame, husky wall car body, microcomputer controlled electro-hydraulic servo system;
Described main frame comprise backing plate 101, left carrier bar 102, whippletree 103, in every beam 104, front and back safety net 105, safety net 106, right carrier bar 107 up and down.
Described whippletree 103 runs through whole framework, connect left carrier bar 102, in every beam 104, right carrier bar 106, and fastening by nut 108, form four whippletree load frame; Fixedly safety net 105 is housed before and after the framework, and the framework top is equipped with movable safety net 106.When the loading and unloading sample, can open safety top net 106, so that the loading and unloading of sample.Backing plate 101 connects with left carrier bar 102, is used for fixing the anchor circle.
Described husky wall car body comprises casing 201, inner perfusion yellow sand.Three sides of casing and the equal jug of end face, roller is installed in the bottom surface, and is flexible when mobile; Described husky wall car body 201 is positioned over the two ends of anchoring main frame respectively, flies out with the accident that prevents test specimen and intermediate plate.
Described microcomputer controlled electro-hydraulic servo system comprises load sensor 301, punching lifting jack 302, preceding cassette lifting jack 303 and displacement transducer system 304.
Find out from structural representation shown in Figure 2: the prestrain of cassette lifting jack 303 and the formal loading work of punching lifting jack 302 before described electrohydraulic servo system is finished.
This electrohydraulic servo system is connected the oil-in of fuel tank 305 and low precision oil filter 306 by petroleum pipeline, the oil-out of this oil filter 306 connects the inlet port of high-pressure pump 307, the oil-out of high-pressure pump 307 four road pipeline roads in parallel: the first via connects high-pressure overflow valve 308 oil-ins, and the oil return opening of this surplus valve 308 takes back fuel tank 305 again; The second the tunnel connects tensimeter 309, and Third Road connects the oil-in of servo valve 310, and the oil return opening of this servo valve 310 takes back fuel tank 305 again; Last road connects the oil-in of high-precision oil filter 311, and the oil-out of this oil filter 311 connects the P mouth of electrohydraulic servo valve 312, and the T mouth of this electrohydraulic servo valve 312 takes back fuel tank 305; The A mouth of described electrohydraulic servo valve 312 three road pipeline roads in parallel: the first via connects the A mouth of servo valve 310, and the second the tunnel connects the P mouth of solenoid directional control valve 313, and last road connects the P mouth of solenoid directional control valve 314; The B mouth of described electrohydraulic servo valve 312 two-way pipeline road in parallel: the first via connects the O mouth of solenoid directional control valve 313, and the second the tunnel connects the O mouth of solenoid directional control valve 314; The A mouth of described solenoid directional control valve 313 connects the left chamber of punching jack cylinder 302, and the B mouth of this solenoid directional control valve 313 connects the right chamber of punching jack cylinder; The A mouth of described solenoid directional control valve 314 in parallel three tunnel: the left chamber of cassette lifting jack 303 before the first via connects, the second tunnel connects low pressure relief valve 315, and last road connects hydraulic pressure transducer 316, and is connected the right chamber of preceding cassette lifting jack 303 by the B mouth of solenoid directional control valve 314.
This hydraulic system has realized carrying out the process of the test that prestrain and punching lifting jack formally load by cassette lifting jack before the system controlled by computer.By electrohydraulic servo valve and solenoid directional control valve the action of each lifting jack is controlled.
Below describe its hydraulic principle in detail: the first step: each root steel strand wires is carried out prestrain, start oil pump 307, punching lifting jack 302 end solenoid valves 313 are in off-position, under the effect of spring force, make its right position work.The preceding very heavy top of cassette solenoid valve 314 is in "on" position, and electromagnetic force overcomes spring force, makes its position, left side work, in the cassette lifting jack working chamber, begins to load before fluid is entered by 312 left of electrohydraulic servo valves.Working chamber place sensor 316 will show the on-load pressure value, when the power value reaches 5MPa, protect and will carry.Prestrain finishes.Second step: steel strand wires are formally loaded, punching lifting jack 302 end solenoid directional control valves 313 are in "on" position, electromagnetic force overcomes spring force, make its position, left side work, preceding cassette lifting jack 303 end solenoid valves 314 are in off-position, under the effect of spring force, make its right position work, fluid is entered in punching lifting jack 302 working chambers by electrohydraulic servo valve 312 controls, begins to load.
As shown in Figure 3, the principle of work of described displacement transducer system 304 is: bidirectional displacement measurement mechanism 401 is fixed on punching lifting jack 302 case surface, gusset 402 is fixed on the end face of lifting jack 302, fix two guide poles 403 on the plate, support a bent plate by two linear bearings 404 on the bar, fix a cone-head screw 405 on the plate, the guide pole of bent plate top is worn spring 406.When the punching lifting jack loaded, piston moved, and will withstand cone-head screw 405 and move right, thus the displacement of measuring punching lifting jack 302 internal pistons.
As shown in Figure 4, in the theory diagram of system controlled by computer servo-drive system, control, measuring system are made up of host computer and slave computer.Load amplifier in the measuring system, light sign indicating number device, servo-control signal are all sent by the load sensor on the testing machine, displacement transducer, electrohydraulic servo valve.It can realize data acquisition, demonstration and man-machine conversation.Slave computer can transmit controlled variable, data processing, curve plotting parameter etc.Slave computer adopts the bus mould plate technique, and host CPU adopts the 80C196 single-chip microcomputer, and it is that 16 single-chip microcomputers are mainly realized the digital PID servocontrol, and data acquisition receives order, to the host computer communications of control data.
By above disclosed technical scheme as can be known, the process of the test of the utility model system controlled by computer static load anchoring testing machine is, at first make steel strand wires, anchor circle, intermediate plate assembly be fixed on the main frame two ends with manual type, an end connects with backing plate, and the other end connects with the punching lifting jack.Start servo-drive system, each root steel strand wires of cassette jack pair load one by one before using, and finish the work that initial stress is mixed well.Beginning is formal to load, and fluid enters load cylinder by servo-valve and punching lifting jack place solenoid directional control valve, and fluid is by oil pipe input service oil cylinder, and under the effect of pressure oil, working piston begins steel strand wires are carried out loading.By system controlled by computer, according to standard, 20%, 40%, 60%, 80% fen 4 grades of constant speed according to prestressing steel tensile strength standard value load, the loading velocity per minute is 100MPa, after reaching 80%, held lotus 1 hour, and progressively be loaded on wherein several bursts of destructions of steel strand wires subsequently, test so far finishes.
The stretching force measurement range of testing machine of the present utility model requires in 4%～100% range ability, and the error of indication is in ± 1%; Range of displacement measurement requires at 0-200mm, and the error of indication is in ± 1%; Can satisfy GB/T14370-2007 " use for tendon ground tackle, anchor clamps and connector " standard-required.
Claims (2)
1. system controlled by computer static load anchoring testing machine, ingredient comprises main frame, husky wall car body, microcomputer controlled electro-hydraulic servo system; It is characterized in that:
A, described main frame comprise backing plate (101), left carrier bar (102), whippletree (103), in every beam (104), front and back safety net (105), safety net (106), right carrier bar (107) up and down; Described whippletree (103) runs through whole framework, connect left carrier bar (102), in every beam (104), right carrier bar (107), form four whippletree load frame; Fixedly safety net (105) is housed before and after the framework, and the framework top is equipped with movable safety net (106), and backing plate (101) connects with left carrier bar (102);
B, described husky wall car body are positioned over the two ends of anchoring main frame respectively, and husky wall car body comprises casing (201), inner perfusion yellow sand, three sides of casing and the equal jug of end face, and roller is installed in the bottom surface;
C, described microcomputer controlled electro-hydraulic servo system comprise load sensor (301), punching lifting jack (302), preceding cassette lifting jack (303), displacement transducer system (304) and hydraulic system.
2. system controlled by computer static load anchoring testing machine as claimed in claim 1, it is characterized in that: described microcomputer controlled electro-hydraulic servo hydraulic system is connected the oil-in of fuel reserve tank (305) and low precision oil filter (306) by petroleum pipeline, the oil-out of this oil filter (306) connects the inlet port of high-pressure pump (307), the oil-out of high-pressure pump (307) four road pipeline roads in parallel: the first via connects high-pressure overflow valve (308) oil-in, and the oil return opening of this surplus valve (308) takes back fuel tank (305) again; The second the tunnel connects tensimeter (309), and Third Road connects the oil-in of servo valve (310), and the oil return opening of this servo valve (310) takes back fuel tank (305) again; Last road connects the oil-in of high-precision oil filter (311), and the oil-out of this oil filter (311) connects the P mouth of electrohydraulic servo valve (312), and the T mouth of this electrohydraulic servo valve (312) takes back fuel tank (305); The A mouth of described electrohydraulic servo valve (312) three road pipeline roads in parallel: the first via connects the A mouth of servo valve (310), and the second the tunnel connects the P mouth of solenoid directional control valve 1 (313), and last road connects the P mouth of solenoid directional control valve (314); The B mouth of described electrohydraulic servo valve (312) two-way pipeline road in parallel: the first via connects the O mouth of solenoid directional control valve (313), and the second the tunnel connects the O mouth of solenoid directional control valve (314); The A mouth of described solenoid directional control valve (313) connects the left chamber of punching jack cylinder (302), and the B mouth of this solenoid directional control valve (313) connects the right chamber of punching jack cylinder; The A mouth of described solenoid directional control valve (314) in parallel three tunnel: the left chamber of cassette lifting jack (303) before the first via connects, the second the tunnel connects low pressure relief valve (315), last road connects hydraulic pressure transducer (316), and is connected the right chamber of preceding cassette lifting jack (303) by the B mouth of solenoid directional control valve (314).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200605771U CN201199213Y (en) | 2008-06-03 | 2008-06-03 | Microcomputer-controlled still-loading anchoring tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200605771U CN201199213Y (en) | 2008-06-03 | 2008-06-03 | Microcomputer-controlled still-loading anchoring tester |
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| Publication Number | Publication Date |
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| CN201199213Y true CN201199213Y (en) | 2009-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200605771U Expired - Lifetime CN201199213Y (en) | 2008-06-03 | 2008-06-03 | Microcomputer-controlled still-loading anchoring tester |
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| CN (1) | CN201199213Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048127A (en) * | 2012-12-18 | 2013-04-17 | 江苏省交通科学研究院股份有限公司 | Anchoring device static load anchorage performance test safeguarding box and protecting method |
| CN107389443A (en) * | 2017-09-04 | 2017-11-24 | 苏交科集团股份有限公司 | The sample support device of static load anchoring test |
| CN109211675A (en) * | 2018-09-05 | 2019-01-15 | 上海华龙测试仪器有限公司 | A kind of protective device of microcomputer controlled electro-hydraulic servo static load anchoring test machine |
| CN109211674A (en) * | 2018-09-05 | 2019-01-15 | 上海华龙测试仪器有限公司 | A kind of anchorage tooling of microcomputer controlled electro-hydraulic servo static load anchoring test machine |
-
2008
- 2008-06-03 CN CNU2008200605771U patent/CN201199213Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048127A (en) * | 2012-12-18 | 2013-04-17 | 江苏省交通科学研究院股份有限公司 | Anchoring device static load anchorage performance test safeguarding box and protecting method |
| CN103048127B (en) * | 2012-12-18 | 2016-05-11 | 江苏省交通科学研究院有限公司 | Ground tackle static load anchoring performance experimental safe protective housing |
| CN107389443A (en) * | 2017-09-04 | 2017-11-24 | 苏交科集团股份有限公司 | The sample support device of static load anchoring test |
| CN109211675A (en) * | 2018-09-05 | 2019-01-15 | 上海华龙测试仪器有限公司 | A kind of protective device of microcomputer controlled electro-hydraulic servo static load anchoring test machine |
| CN109211674A (en) * | 2018-09-05 | 2019-01-15 | 上海华龙测试仪器有限公司 | A kind of anchorage tooling of microcomputer controlled electro-hydraulic servo static load anchoring test machine |
| CN109211674B (en) * | 2018-09-05 | 2020-12-29 | 上海华龙测试仪器有限公司 | Anchor tool of microcomputer-controlled electro-hydraulic servo static load anchoring testing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI HUALONG TEST INSTRUMENTS CORPORATION Free format text: FORMER NAME: HUALONG DETECTOR CO., LTD., SHANGHAI |
|
| CP03 | Change of name, title or address |
Address after: Chuansha Pudong New Area Town, Shanghai City Sichuan Road No. 389 201202 Patentee after: Shanghai Hualong Test Instruments Co., Ltd. Address before: 201202 Shanghai city Pudong New Area Sichuan Road No. 389 Patentee before: Hualong Detector Co., Ltd., Shanghai |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090225 |