CN2687649Y - Artificial testing platform of anti-seismic property for mechanical structure - Google Patents
Artificial testing platform of anti-seismic property for mechanical structure Download PDFInfo
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- CN2687649Y CN2687649Y CN 200420041480 CN200420041480U CN2687649Y CN 2687649 Y CN2687649 Y CN 2687649Y CN 200420041480 CN200420041480 CN 200420041480 CN 200420041480 U CN200420041480 U CN 200420041480U CN 2687649 Y CN2687649 Y CN 2687649Y
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Abstract
The utility model discloses an artificial testing platform of anti-seismic property for mechanical structure, characterized in that the utility model is composed of a table facet, a base, a table facet supporting mechanism, a guide mechanism, an exciting mechanism, a gear and a hydraulic controller. The part between the table facet and the base is supported by the table facet supporting mechanism, fixed by the guide mechanism. The artificial testing platform of anti-seismic property for mechanical structure is characterized in that the table facet supporting mechanism is composed of four air spring supporting mechanisms positioned on the circumference of the lower table facet. The exciting mechanism is composed of four angling cylinders and a liquid-control one-way valve which are connected, every angling cylinder is respectively communicated with one liquid-control one-way valve, and the other end of the liquid-control one-way valve is connected with the hydraulic controller. Four angling cylinders and the gear are connected via a flexible coupling, and the gear is made to drive four angling cylinders to rotate according to set direction. The piston of the angling cylinder is of off-center quality, the displacement of the off-center quality is altered by the hydraulic oil input by the hydraulic controller, and accordingly the vibration amplitude value of vibration table facet is changed.
Description
Technical field: the utility model relates to a kind of simulation test platform, particularly mechanical structure resistance to shock simulation test platform.
Background technology: product carries out the test of various vibration simulations by l-G simulation test, the vibration test requirement when satisfying product export.Vibration test is that producer guarantees an important job of product quality, relates generally to following parameter testing: the frequency of vibration, vibration displacement, speed, acceleration etc.The mechanical setting means of the many employings of existing vibration rig as in the vibration l-G simulation test, when being set at vertical vibration or horizontal vibration mechanically, and when vibration parameters need be revised, all need be readjusted, and sets vibration frequency or vibratory output.In the single test this process need repeatedly, different parameters test all needs to adjust, therefore, once complete test need take a long time.Existing vibration rig linear properties is relatively poor simultaneously, and there is bigger distortion in test, influences the result of l-G simulation test.Adopted the equipment of the vibration test that the electric control mode regulates to occur though also have in recent years, the convenience of its performance, adjusting still can't reach satisfactory effect.
Summary of the invention: the purpose of this utility model provides a kind of mechanical structure resistance to shock mechanical structure resistance to shock simulation test platform, so that in the l-G simulation test process, not needing that simulation test platform is carried out too much machinery sets, the purpose of just can quick and convenient input any parameter test is finished the measurement of important parameters such as vibration table frequency, displacement, speed, acceleration and degree of distortion.
The purpose of this utility model is to realize like this, design a kind of mechanical structure resistance to shock simulation test platform, it is made up of table top, base, mesa supports mechanism, guiding mechanism, exciting agency, gearing, hydraulic control device, between table top and the base by the mesa supports mechanism supports, and fix by guiding mechanism, it is characterized in that: mesa supports mechanism is made up of four air spring supporting mechanisms, and four air spring supporting mechanisms are around following table; Exciting agency is connected and composed by four angling cylinders, hydraulic control one-way valves, and each angling cylinder is communicated with a hydraulic control one-way valve respectively, and the hydraulic control one-way valve other end is connected with hydraulic control device, and four angling cylinders are connected with gearing by flexible clutch; Drive four angling cylinders by gearing and press the direction initialization rotation, the piston of angling cylinder is an eccentric mass, and it changes the displacement of eccentric mass by the hydraulic oil of hydraulic control device input; Thereby change the vibration amplitude of vibration table.
Described air spring supporting mechanism is connected and composed by rubber air spring, air air drum, orifice restriction device, tracheae, the air air drum is " I-shaped " shape, the top cylinder of air air drum is fixed with air spring, have around the work top four positioning pistons in air spring in; There is the orifice restriction device at air air drum middle part, and air air drum bottom tube arm has tracheae, and four air air drums link to each other with tracheae.On one of them air air drum valve cock 28 is arranged.
Four positioning pistons 25 in described table top 20 bottoms are on air spring 24.
There is a boss 30 at the center of described air spring 24, and boss 30 cooperates with the center pit of positioning piston 25,
Characteristics of the present utility model are: because table top is supported by the air spring supporting mechanism, form no forced guidance inertia-powered, and promptly typical single-degree of freedom vibration, the natural frequency of being somebody's turn to do is lower than frequency of operation, so shaking table is in super resonance duty when working.Air spring has good vibration isolation effect in addition, does not therefore need foundation special.And exciting agency changes the displacement of eccentric mass by the forming of the piston oil-cylinder of four eccentric mass by the hydraulic oil of hydraulic control device input; Thereby change the vibration amplitude of vibration table; Four angling cylinders are connected with gearing by flexible clutch; Drive four angling cylinders by gearing and press the direction initialization rotation, can form horizontal or vertical vibration.
The utility model is described in further detail below in conjunction with the embodiment accompanying drawing:
Description of drawings: Fig. 1 is the utility model embodiment transmission structures synoptic diagram;
Fig. 2 is the utility model embodiment hydraulic control device and exciting agency structural representation;
Fig. 3 is the utility model embodiment air spring supporting mechanism structural representation;
Fig. 4 is the utility model embodiment guiding mechanism structural representation.
Among the figure, 1, exciting agency; 2, angling cylinder; 3, flexible clutch; 4, axle one; 5, axle two; 6, handwheel one; 7, handwheel two; 8, V-belt; 9, motor; 10, variator; 11, axle three; 12, handwheel three; 13, axle four; 14, throttling valve; 15, two-position four-way valve; 16, three position four-way electromagnetic valve; 17,5-linked synchronized cylinder; 18, retaining valve; 19, hydraulic control one-way valve; 20, table top; 21, base; 22, oil pipe; 23, plunger case; 24, rubber air spring; 25, positioning piston; 26, air air drum; 27, orifice restriction device; 28, valve cock; 29, vent valve; 30, boss; 31, tracheae; 32, driving shaft.
Embodiment: as shown in Figure 1, four angling cylinders 2 are connected with gearing by four flexible clutchs 3; Being connected axle 1 and handwheel 1 on the flexible clutch 3, axle 25 and handwheel 27, spools 4 13 is connected by wheel box 10 with driving shaft 32 with handwheel three, spools 4 13; Control hand wheel one, handwheel two, handwheel three can be set the initial bit phase of four angling cylinders 2, when motor 9 drives driving shaft 32 by V-belt 8, the eccentric mass rotation of angling cylinder 2 produces centrifugal force, at this moment phase place is synthetic to form the exciting force that sinusoidal rule changes by setting on direction of vibration, makes table top 20 and the trial target that is installed on the table top 20 produces vibration by the direction of determining.Setting phase place can make the direction of vibration of table top 20 with vertical, horizontal direction vibration.
As shown in Figure 2, angling cylinder 2 is connected by oil circuit by the 5-linked synchronized cylinder formed with five plunger cases 23 17 by hydraulic control one-way valve 19 respectively, wherein four of 5-linked synchronized cylinder 17 plunger cases 23 and hydraulic control one-way valve 19 be connected to form four closed circuit, a plunger case 23 connects three position four-way electromagnetic valves 16.Hydraulic control one-way valve 19 is the operation valve of the turnover oil of angling cylinder 2.Two-position four-way valve 15 is solenoid directional control valves; It also is connected to the hydraulic control one-way valve 19 of four plunger case 23 front ends simultaneously, two-position four-way valve 15 actions, and oil pipe 22 enters pressure oil, and hydraulic control one-way valve 19 is opened.Postpone after three seconds three position four-way electromagnetic valve 16 actions.Piston in the middle of the 5-linked synchronized cylinder 17 moves upward, and angling cylinder 2 is emitted equal-volume hydraulic oil respectively by oil pipe 22.Offset piston is synchronous, and to deviating from the motion of rotation center direction, unbalanced moments increases, and displacement amplitude also increases thereupon.When reaching needed displacement amplitude.Two-position four-way valve 15 and three position four-way electromagnetic valve 16 reset to zeros.Hydraulically-controlled one-way valve 19 is closed, 17 stop motions of 5-linked synchronized cylinder.It is motionless that piston is fixed on desired location, and then displacement is stablized constant.
As shown in Figure 3, mesa supports mechanism is made up of four air springs, four air springs are distributed in around the table top 20, each air spring is by rubber air spring 24, air air drum 26, orifice restriction device 27, tracheae 31, vent valve 29 is formed, air air drum 26 is " I-shaped " shape, the positioning piston 25 of the air spring supporting table that the top cylinder of air air drum 26 is fixing, there is orifice restriction device 27 at air air drum 26 middle parts, air air drum 26 bottom barrels have tracheae 31, four air air drum 26 usefulness tracheaes 31 are interconnected, on one of them air air drum valve cock 28 is housed, air air drum 26 is squeezed into air in the air air drum 26 by common tracheae or small air pump, rubber air spring 24 internal pressures are raise, can vibration table 20 be remained on the specified altitude by regulating the air inflow in the empty institute air drum 26.
As shown in Figure 4, four positioning pistons 25 in guiding mechanism involving vibrations table top 20 bottoms are placed on the air spring 24.Air spring 24 surrounds four positioning pistons 25 of vibration table 20 ringwise, and there is a boss 30 at the center of air spring 24, boss 30 cooperates with the center pit of positioning piston 25, air spring 24 anti-vibration performances are good, and vibration table 20 is during by vibration, not can to around exert an influence.
The utility model can lead to the sensor that is fixed on the table top and convert vibration signal to electric signal and deliver to control computation unit, through data processing, realization shows vibrational waveform to the measurement of important parameters such as shaking table frequency, displacement, speed, acceleration and degree of distortion.And can carry out spectrum analysis as required, and have good extendability, can control, measure two mechanical vibration generator systems simultaneously or monitor a collision stage, shock testing machine simultaneously according to user's requirement.Good control accuracy and reliability are arranged, and simple to operate, directly perceived, be beneficial to and realize testing laboratory's central management.
Claims (5)
1, mechanical structure resistance to shock simulation test platform, it is made up of table top, base, mesa supports mechanism, guiding mechanism, exciting agency, gearing, hydraulic control device, between table top and the base by the mesa supports mechanism supports, and fix by guiding mechanism, it is characterized in that: mesa supports mechanism is made up of four air spring supporting mechanisms, and four air spring supporting mechanisms are around following table; Exciting agency is connected and composed by four angling cylinders, hydraulic control one-way valves, and each angling cylinder is communicated with a hydraulic control one-way valve respectively, and the hydraulic control one-way valve other end is connected with hydraulic control device, and four angling cylinders are connected with gearing by flexible clutch; Drive four angling cylinders by gearing and press the direction initialization rotation, the piston of angling cylinder is an eccentric mass, and it changes the displacement of eccentric mass by the hydraulic oil of hydraulic control device input; Thereby change the vibration amplitude of vibration table.
2, mechanical structure resistance to shock mechanical structure resistance to shock simulation test platform according to claim 1, it is characterized in that: described air spring supporting mechanism is connected and composed by rubber air spring, air air drum, orifice restriction device, tracheae, the air air drum is " I-shaped " shape, the top cylinder of air air drum is fixed with air spring, have around the work top four positioning pistons in air spring in; There is the orifice restriction device at air air drum middle part, and air air drum bottom tube arm has tracheae, and four air air drums link to each other with tracheae.
3, mechanical structure resistance to shock mechanical structure resistance to shock simulation test platform according to claim 2 is characterized in that: valve cock (28) is arranged on one of them air air drum.
4, mechanical structure resistance to shock mechanical structure resistance to shock simulation test platform according to claim 1, it is characterized in that: described table top (20) four positioning pistons in bottom (25) are on air spring (24).
5, mechanical structure resistance to shock mechanical structure resistance to shock simulation test platform according to claim 2, it is characterized in that: there is a boss (30) at the center of air spring (24), and boss (30) cooperates with the center pit of positioning piston (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041480 CN2687649Y (en) | 2004-02-02 | 2004-02-02 | Artificial testing platform of anti-seismic property for mechanical structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041480 CN2687649Y (en) | 2004-02-02 | 2004-02-02 | Artificial testing platform of anti-seismic property for mechanical structure |
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| Publication Number | Publication Date |
|---|---|
| CN2687649Y true CN2687649Y (en) | 2005-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200420041480 Expired - Fee Related CN2687649Y (en) | 2004-02-02 | 2004-02-02 | Artificial testing platform of anti-seismic property for mechanical structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100394156C (en) * | 2005-05-23 | 2008-06-11 | 苏州试验仪器总厂 | Triaxiality and six degrees of freedom test bench for airdriven vibration, transportation bump, and slant swing |
| CN105736591A (en) * | 2016-05-06 | 2016-07-06 | 中国工程物理研究院总体工程研究所 | No-clearance force transmission coupling device capable of generating shearing deformation in hyper-gravity field |
| CN111721548A (en) * | 2020-06-30 | 2020-09-29 | 东风汽车集团有限公司 | Gas spring device and test bench |
-
2004
- 2004-02-02 CN CN 200420041480 patent/CN2687649Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100394156C (en) * | 2005-05-23 | 2008-06-11 | 苏州试验仪器总厂 | Triaxiality and six degrees of freedom test bench for airdriven vibration, transportation bump, and slant swing |
| CN105736591A (en) * | 2016-05-06 | 2016-07-06 | 中国工程物理研究院总体工程研究所 | No-clearance force transmission coupling device capable of generating shearing deformation in hyper-gravity field |
| CN105736591B (en) * | 2016-05-06 | 2018-06-29 | 中国工程物理研究院总体工程研究所 | Shear-deformable gapless power transmission coupling arrangement can be generated in super gravity field |
| CN111721548A (en) * | 2020-06-30 | 2020-09-29 | 东风汽车集团有限公司 | Gas spring device and test bench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050323 Termination date: 20130202 |