CN102680264A - Wind load testing device and method of vehicle-mounted mast lifting system - Google Patents
Wind load testing device and method of vehicle-mounted mast lifting system Download PDFInfo
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- CN102680264A CN102680264A CN2012101614637A CN201210161463A CN102680264A CN 102680264 A CN102680264 A CN 102680264A CN 2012101614637 A CN2012101614637 A CN 2012101614637A CN 201210161463 A CN201210161463 A CN 201210161463A CN 102680264 A CN102680264 A CN 102680264A
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Abstract
The invention discloses a wind-power-controllable wind load testing device and method of a vehicle-mounted mast lifting system. A set equivalent wind power value is converted into a corresponding voltage signal to be sent to each proportional pressure-regulating valve, the size of an opening is regulated by using the proportional pressure-regulating valves, and furthermore, the pressure of an air cylinder is regulated, so that the thrust of the air cylinder can be continuously regulated; a movable pulley is pushed by a piston rod of the air cylinder, so that a tension is generated on a steel wire rope; the tension generated on the steel wire rope is acted on a multisection telescopic vehicle-mounted mast and a counter weight through a tension sensor, voltage values are transmitted to a computer through the tension sensor, all the voltage values are converted into corresponding tension values through the computer, and voltages are output through control and regulation, so that the actual tension value acquired by the tension sensor is gradually close to and up to the actually output wind power value; and a strain value of a strain foil is acquired in real time during test, so that the deformation and stress conditions of a mast during wind load test can be detected. By using the wind-power-controllable wind load testing device and method of the vehicle-mounted mast lifting system, the test space can be saved, the stroke of the piston rod can be reduced; and the testing precision can be improved, and different wind power detecting requirements can be met.
Description
Technical field
The present invention relates to the wind load field tests of mast system, especially relate to a kind of controlled wind load proving installation and method thereof of wind-force of vehicle mounted mast jacking system.
Background technology
In order to improve the reach of vehicle-mounted investigation, the oneself who strengthens scout car hides ability, and people such as domestic Chen Li have studied a kind of vehicle-mounted lifting mast system.This system is positioned on the scout car, is made up of some joint thin-walled hollow masts.The composite structure form that mast takes hydraulic-driven and mechanical drive to combine, mast tops is equipped with various detecting devicess, and rice surplus mast reaches as high as ten when stretching out has fully increased the scope of investigation of scout car so greatly.
For domestic do less relatively of the research of vehicle mounted mast jacking system, people such as Chen Lixue have proposed the method for designing and the cabling mode of mast, and people such as Xia Yuanjie have done model analysis and emulation to the mast system; More abroad to researchs such as mast structure, top photoelectricity device structure, cabling mode, hydrostatic control platforms, then relate to less to the test field.
The research of mast is concentrated on mostly the mast of radar and offshore operation both at home and abroad, wind load method of testing commonly used has the test that pulls in wind tunnel test, rolling test and the pond.Because the vehicle mounted mast jacking system is made up of a lot of joints; For promote investigation apart from mast height generally more than 10 meters and cross-sectional area less; The top side-play amount is bigger when receiving windage; Consider the problems such as design feature and measuring accuracy, cost of vehicle mounted mast system, so said method all is not suitable for the wind load test of vehicle mounted mast jacking system.
Because wind-force is directly connected to the intensity and the stability of mast to the influence of mast ess-strain,, needs a kind of feasible loading scheme and come mast is carried out the wind load simulation test for ensureing the accuracy of observation of mast under strong wind weather.
Summary of the invention
The object of the present invention is to provide a kind of controlled wind load proving installation and method thereof of wind-force of vehicle mounted mast jacking system.It is big and be not suitable for the drawback of vehicle mounted mast system that this method has overcome existing wind load method of testing error, and can test the wind load various states under, and energy-conserving and environment-protective, strong, the saving test space of controllability.
Vehicle mounted mast jacking system wind load proving installation comprises multi-joint telescoping formula vehicle mounted mast, reaction frame, counterweight, foil gauge, puller system, computing machine; Multi-joint telescoping formula vehicle mounted mast upper end is provided with counterweight; Each joint bottom at multi-joint telescoping formula vehicle mounted mast is fixed with foil gauge; Multi-joint telescoping formula vehicle mounted mast and the parallel reaction frame that is provided with of multi-joint telescoping formula vehicle mounted mast; Establish a plurality of puller systems on the reaction frame, puller system comprises reaction frame crossbeam, proportional dump valve, cylinder frame, pulley blocks, pulling force sensor, the collar, wire rope, draw ring, tracheae, source of the gas, and pulley blocks comprises moving pulley bracket, travelling block, fixed pulley support, fixed pulley; The reaction frame crossbeam is provided with proportional dump valve and cylinder frame, and cylinder frame is provided with cylinder, and cylinder comprises piston rod, cylinder rodless cavity, cylinder rod chamber; The piston both sides of piston rod bottom are divided into rodless cavity and rod chamber, and an end of piston rod connects moving pulley bracket, and moving pulley bracket connects travelling block; Cylinder frame one end is provided with the fixed pulley support; The fixed pulley support connects fixed pulley, and wire rope one end is fixed on fixed pulley support lower end, is fixed on draw ring through the wire rope other end behind travelling block and the fixed pulley; Draw ring, pulling force sensor, the collar connect in order, the collar be enclosed within each joint middle part of vehicle mounted mast go up with is connected counterweight bottom on; Proportional dump valve comprises proportional dump valve air intake opening, proportional dump valve gas outlet, and the air intake opening of proportional dump valve connects source of the gas, and the gas outlet of proportional dump valve connects rodless cavity, rod chamber and atmosphere through tracheae; Reaction frame links to each other with the crossbeam of puller system, and proportional dump valve, pulling force sensor, foil gauge link to each other with computing machine.
Vehicle mounted mast jacking system wind load method of testing: be converted into the correspondent voltage signal according to the equivalent wind-force value of setting and be sent to each proportional dump valve; Proportional dump valve is regulated openings of sizes and then is regulated the air pressure of cylinder; Make cylinder thrust adjustable continuously; Thereby cylinder piston rod promotes travelling block and on wire rope, produces pulling force, and wire rope affacts tension level on multi-joint telescoping formula vehicle mounted mast and the counterweight through pulling force sensor, and pulling force sensor is passed to computing machine with magnitude of voltage; Computing machine is converted into corresponding value of thrust with each road magnitude of voltage; And compare with each road output equivalent wind-force value of actual set, the regulating and controlling output voltage, make actual value of thrust that pulling force sensor collects progressively near and reach the wind-force value of actual output; Gather the strain value of foil gauge during test in real time, distortion and stressing conditions when testing to detect the mast wind load.
The beneficial effect that the present invention has is:
1, pulling force can carry out closed-loop control by proportional dump valve, pulling force sensor and controller, and is continuously adjustable and precision is higher.
2, load with cylinder, response is rapid, energy-conserving and environment-protective.
3, adopt pulley blocks, reduce the cylinder stroke, save test space.
4, counterweight modularization can be added and subtracted as required.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation:
Fig. 1 is a vehicle mounted mast jacking system wind load test structure principle layout;
Fig. 2 is cylinder of the present invention, fixed pulley and travelling block structural representation;
Fig. 3 is draw ring of the present invention, the collar and pulling force sensor structural representation;
Fig. 4 is an air pressure schematic diagram of the present invention.
Among the figure: test mast 1, reaction frame 2, reaction frame crossbeam 3, proportional dump valve 4, cylinder 5, cylinder frame 6, pulley blocks 7, pulling force sensor 8, the collar 9, wire rope 10, piston rod 11, moving pulley bracket 12, travelling block 13, fixed pulley support 14, fixed pulley 15, draw ring 16, counterweight 17, foil gauge 18, proportional dump valve air intake opening 19, proportional dump valve gas outlet 20, cylinder rodless cavity 21, cylinder rod chamber 22, tracheae 23, source of the gas 24.
Embodiment
As shown in the figure, vehicle mounted mast jacking system wind load proving installation comprises multi-joint telescoping formula vehicle mounted mast 1, reaction frame 2, counterweight 17, foil gauge 18, puller system, computing machine; Multi-joint telescoping formula vehicle mounted mast 1 upper end is provided with counterweight 17; Each joint bottom at multi-joint telescoping formula vehicle mounted mast 1 is fixed with foil gauge 18; Multi-joint telescoping formula vehicle mounted mast 1 and the multi-joint telescoping formula vehicle mounted mast 1 parallel reaction frame 2 that is provided with; Establish a plurality of puller systems on the reaction frame 2; Puller system comprises reaction frame crossbeam 3, proportional dump valve 4, cylinder frame 6, pulley blocks 7, pulling force sensor 8, the collar 9, wire rope 10, draw ring 16, tracheae 23, source of the gas 24, and pulley blocks 7 comprises moving pulley bracket 12, travelling block 13, fixed pulley support 14, fixed pulley 15; Reaction frame crossbeam 3 is provided with proportional dump valve 4 and cylinder frame 6; Cylinder frame 6 is provided with cylinder 5, and cylinder 5 comprises piston rod 11, cylinder rodless cavity 21, cylinder rod chamber 22, and the piston both sides of piston rod 11 bottoms are divided into rodless cavity 21 and rod chamber 22; One end of piston rod 11 connects moving pulley bracket 12; Moving pulley bracket 12 connects travelling block 13, and cylinder frame 6 one ends are provided with fixed pulley support 14, and fixed pulley support 14 connects fixed pulley 15; Wire rope 10 1 ends are fixed on fixed pulley support 14 lower ends; Be fixed on draw ring 16 through the travelling block 13 and fixed pulley 15 back wire rope 10 other ends, draw ring 16, pulling force sensor 8, the collar 9 connect in order, the collar 9 be enclosed within vehicle mounted mast 1 each joint middle part upward be connected counterweight 17 bottoms on; Proportional dump valve 4 comprises proportional dump valve air intake opening 19, proportional dump valve gas outlet 20, and the air intake opening 20 of proportional dump valve 4 connects source of the gas 24, and the gas outlet 19 of proportional dump valve 4 connects rodless cavity 21, rod chamber 22 and atmosphere through tracheae 23; Reaction frame 2 links to each other with the crossbeam 3 of puller system, and proportional dump valve 4, pulling force sensor 8, foil gauge 18 link to each other with computing machine.
Consider that bigger side-play amount is arranged at mast 1 top; The installation site of top cylinder frame 6 will be more away from mast; Simultaneously because the power that counterweight 17 places in top apply is bigger; Topmost power and the piston rod stroke of a displacements of cylinders 5 are all bigger, should make during cylinder 5 selections as far as possible cylinder 5 work in maximum power output 25% to 75% between.
Regulate fixed pulley frame support 14, make wire rope 10, draw ring 16, pulling force sensor 8 and the collar 9 maintenance levels, the accuracy with the level of guaranteeing loading force and the value of thrust that collects should make wire rope 10 be in the pretension state before the test.
Consider that mast 1 every joint bottom stress strain is bigger, foil gauge or strain rosette 18 be attached to respectively save mast foot that line can return computing machine along mast.
The number of pulling force sensor 8, cylinder 5, proportional dump valve 4 is decided with the joint number of mast, consider mast next joint do not receive wind-force and the top optoelectronic device receives windage bigger, generally have mast to have how many joints just to select how many complete equipments for use.
To apply counterweight 17 some equipment during test on the top with the simulation mast tops; Counterweight 17 is made modularization; The mass that is divided into different size carries out choose reasonable and collocation as required during test, counterweight 17 xsects are done quadrate; Bottom one with mast topmost a joint link to each other, all the other balancing weights are fixed on one of the bottom.
Pulling force sensor 8 power leads and signal wire along wire rope 10 to reaction frame crossbeam 3; And get back to computing machine along reaction frame 2; The power lead of proportional dump valve 4 and control line are got back to computing machine along reaction frame 2, and tracheae can carry out mounting arrangements along reaction frame 2 and crossbeam 3.
Vehicle mounted mast jacking system wind load method of testing: be converted into the correspondent voltage signal according to the equivalent wind-force value of setting and be sent to each proportional dump valve 4; Proportional dump valve 4 is regulated openings of sizes and then is regulated the air pressure of cylinder 5; Make that cylinder 5 thrusts are adjustable continuously; Thereby cylinder 5 piston rods 11 promote travelling block 13 and on wire rope 10, produce pulling force, and wire rope 10 affacts tension level on multi-joint telescoping formula vehicle mounted mast 1 and the counterweight 17 through pulling force sensor 8, and pulling force sensor 8 is passed to computing machine with magnitude of voltage; Computing machine is converted into corresponding value of thrust with each road magnitude of voltage; And compare with each road output equivalent wind-force value of actual set, the regulating and controlling output voltage, make actual value of thrust that pulling force sensor 8 collects progressively near and reach the wind-force value of actual output; Gather the strain value of foil gauge 18 during test in real time, distortion and stressing conditions when testing to detect the mast wind load.
This method can be tested constant wind load, also can test dynamic wind load simultaneously, only need calculate the blast size before the test and get final product, and the higher response speed of cylinder makes the test of dynamic blast become possibility.Need incremental steady loading during loading, make the force value of each cylinder progressively reach preset value, not directly will need force value to be applied on the mast.
Foil gauge can adopt glued formula to paste; Select corresponding foil gauge or strain rosette according to the material of mast and the bridge circuit mode of acquisition system; Foil gauge is attached to the bottom of respectively saving mast, gathers strain value during test in real time, distortion and stressing conditions when testing to detect the mast wind load.
Claims (2)
1. a vehicle mounted mast jacking system wind load proving installation is characterized in that: comprise multi-joint telescoping formula vehicle mounted mast (1), reaction frame (2), counterweight (17), foil gauge (18), puller system, computing machine; Multi-joint telescoping formula vehicle mounted mast (1) upper end is provided with counterweight (17); (each joint bottom of 1 is fixed with foil gauge (18 at multi-joint telescoping formula vehicle mounted mast; The parallel reaction frame (2) that is provided with of multi-joint telescoping formula vehicle mounted mast (1) with multi-joint telescoping formula vehicle mounted mast (1); Reaction frame is established a plurality of puller systems on (2); Puller system comprises reaction frame crossbeam (3), proportional dump valve (4), cylinder frame (6), pulley blocks (7), pulling force sensor (8), the collar (9), wire rope (10), draw ring (16), tracheae (23), source of the gas (24), and pulley blocks (7) comprises moving pulley bracket (12), travelling block (13), fixed pulley support (14), fixed pulley (15); Reaction frame crossbeam (3) is provided with proportional dump valve (4) and cylinder frame (6); Cylinder frame (6) is provided with cylinder (5); Cylinder (5) comprises piston rod (11), cylinder rodless cavity (21), cylinder rod chamber (22); The piston both sides of piston rod (11) bottom are divided into rodless cavity (21) and rod chamber (22), and an end of piston rod (11) connects moving pulley bracket (12), and moving pulley bracket (12) connects travelling block (13); Cylinder frame (6) one ends are provided with fixed pulley support (14); Fixed pulley support (14) connects fixed pulley (15), and wire rope (10) one ends are fixed on fixed pulley support (14) lower end, is fixed on draw ring (16) through the travelling block (13) and fixed pulley (15) back wire rope (10) other end; Draw ring (16), pulling force sensor (8), the collar (9) connect in order, the collar (9) be enclosed within each joint middle part of vehicle mounted mast (1) go up be connected counterweight (17) bottom on; Proportional dump valve (4) comprises proportional dump valve air intake opening (19), proportional dump valve gas outlet (20); The air intake opening (20) of proportional dump valve (4) connects source of the gas (24); The gas outlet (19) of proportional dump valve (4) connects rodless cavity (21), rod chamber (22) and atmosphere through tracheae (23); Reaction frame (2) links to each other with the crossbeam (3) of puller system, and proportional dump valve (4), pulling force sensor (8), foil gauge (18) link to each other with computing machine.
2. vehicle mounted mast jacking system wind load method of testing that use is installed according to claim 1; It is characterized in that being converted into the correspondent voltage signal according to the equivalent wind-force value of setting is sent to each proportional dump valve (4); Proportional dump valve (4) is regulated openings of sizes and then is regulated the air pressure of cylinder (5); Make that cylinder (5) thrust is adjustable continuously; Cylinder (5) piston rod (11) promotes travelling block (13) thereby goes up the generation pulling force at wire rope (10), and wire rope (10) affacts tension level on multi-joint telescoping formula vehicle mounted mast (1) and the counterweight (17) through pulling force sensor (8), and pulling force sensor (8) is passed to computing machine with magnitude of voltage; Computing machine is converted into corresponding value of thrust with each road magnitude of voltage; And compare with each road output equivalent wind-force value of actual set, the regulating and controlling output voltage, make actual value of thrust that pulling force sensor (8) collects progressively near and reach the wind-force value of actual output; Gather the strain value of foil gauge (18) during test in real time, distortion and stressing conditions when testing to detect the mast wind load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210161463.7A CN102680264B (en) | 2012-05-23 | 2012-05-23 | Wind load testing device and method of vehicle-mounted mast lifting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210161463.7A CN102680264B (en) | 2012-05-23 | 2012-05-23 | Wind load testing device and method of vehicle-mounted mast lifting system |
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| CN102680264A true CN102680264A (en) | 2012-09-19 |
| CN102680264B CN102680264B (en) | 2014-04-30 |
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| CN201210161463.7A Expired - Fee Related CN102680264B (en) | 2012-05-23 | 2012-05-23 | Wind load testing device and method of vehicle-mounted mast lifting system |
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| CN103453832A (en) * | 2012-09-25 | 2013-12-18 | 江苏科技大学 | Multipurpose deformation measuring device and measuring method |
| CN105043793A (en) * | 2015-04-25 | 2015-11-11 | 泰山体育产业集团有限公司 | Novel micro-controlled intelligent deformation, stability and fatigue test device |
| CN107246832A (en) * | 2017-05-08 | 2017-10-13 | 巨石集团成都有限公司 | Yarn pendency degree measurement apparatus and method |
| CN107607332A (en) * | 2017-09-19 | 2018-01-19 | 清华大学苏州汽车研究院（相城） | A kind of novel tire Constrained mode test device |
| CN108535036A (en) * | 2018-04-12 | 2018-09-14 | 大连船舶重工集团舵轴有限公司 | Sail continental rise lifts experiment fixture system |
| CN112629724A (en) * | 2020-11-30 | 2021-04-09 | 江苏科技大学 | Dynamic measuring device for wind and rain load of structure |
| CN112729219A (en) * | 2021-01-13 | 2021-04-30 | 中国一冶集团有限公司 | Template deformation monitoring system and monitoring method |
| CN113008680A (en) * | 2020-05-11 | 2021-06-22 | 河北航道汽车制造有限公司 | Electric power safety tool detection vehicle and electric power safety tool detection system |
| CN113465957A (en) * | 2021-05-17 | 2021-10-01 | 中国人民解放军第六九O五工厂 | Antenna lift mast wind-resistant simulation test system |
| CN108535036B (en) * | 2018-04-12 | 2024-04-12 | 大连船舶重工集团有限公司 | Tool system for sail land-based lifting test |
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| CN108535036A (en) * | 2018-04-12 | 2018-09-14 | 大连船舶重工集团舵轴有限公司 | Sail continental rise lifts experiment fixture system |
| CN108535036B (en) * | 2018-04-12 | 2024-04-12 | 大连船舶重工集团有限公司 | Tool system for sail land-based lifting test |
| CN113008680A (en) * | 2020-05-11 | 2021-06-22 | 河北航道汽车制造有限公司 | Electric power safety tool detection vehicle and electric power safety tool detection system |
| CN112629724A (en) * | 2020-11-30 | 2021-04-09 | 江苏科技大学 | Dynamic measuring device for wind and rain load of structure |
| CN112729219A (en) * | 2021-01-13 | 2021-04-30 | 中国一冶集团有限公司 | Template deformation monitoring system and monitoring method |
| CN113465957A (en) * | 2021-05-17 | 2021-10-01 | 中国人民解放军第六九O五工厂 | Antenna lift mast wind-resistant simulation test system |
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