CN101430238B - Tester used for detecting vibration impact resistance of canister - Google Patents
Tester used for detecting vibration impact resistance of canister Download PDFInfo
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- CN101430238B CN101430238B CN2008102039725A CN200810203972A CN101430238B CN 101430238 B CN101430238 B CN 101430238B CN 2008102039725 A CN2008102039725 A CN 2008102039725A CN 200810203972 A CN200810203972 A CN 200810203972A CN 101430238 B CN101430238 B CN 101430238B
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- impact
- vibration
- canister
- synchronous motor
- cam
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention relates to a tester for detecting anti-vibration impact property of a canister. The tester comprises a vibrating case body, a fixed case body, a synchronous machine, a control system and a transmission system. The transmission system is fixedly connected to a bottom plate of the vibrating case body after the synchronous machine drives an impact cam, the lower end of an impact mandrel is against the impact cam, and the upper end of the impact mandrel penetrates a perforation arranged on a top plate of the fixed case body. The impact cam is detachably arranged on an output shaft of the synchronous machine, and the vibrating case body is formed by splicing a plurality of case bodies. The tester can help realize continuous vibration impact to detect the canisters of different specifications.
Description
Technical field
The present invention is a kind of tester that is used to detect vibration impact resistance of canister, is mainly used to the canister of respirator is done the vibratory impulse test, in order to determine the testing tool of canister filling firmness.
Background technology
When being engaged in special industry or dangerous work, respirator has important role to protection operating personnel's safety.Its degree of safety receives concern more and more widely, and has caused deep day by day discussion.Be directly connected to user of service's life security especially as the firm degree of filling of the canister of its vitals.
Because the environment for use more complicated of respirator, in its transportation and use, motion along with carrier and user of service, and because extraneous bumps etc. all can cause vibration and impact to the canister of respirator, may cause canister filter toxic effect to descend even to lose efficacy, cause serious consequence.Therefore be necessary canister is carried out the vibratory impulse test, that checks canister adds the dress firmness.
Common vibration tester, mostly be by driving eccentric wheel, make platform do forced vibration, though it is simple in structure, and vibration frequency, amplitude, peak acceleration are regulated easily, but the vibrational waveform of its output can only be sine wave, and the peak acceleration of its generation is also less than normal, and imitation respirator loading and unloading transportation and the complex environment in the use that can't be satisfactory may be to its vibratory impulses that causes.
And common impact tester mainly is to simulate actual shock environment with the impact effect that simple impulse load produces, and can't simulate the vibration in the respirator transportation use.Therefore also can't be competent at the work of the fastness that detects canister.
Therefore and the canister size difference of different size is bigger, is necessary to design the dress firmness that adds that a multi-usage can realize that the vibration gauge of bump detects canister and just seems necessary.
Summary of the invention
The objective of the invention is to the needs that detect at the canister physical strength, a kind of tester that is used to detect vibration impact resistance of canister is provided, can realize that bump vibrates the filling firmness that the filter poison that detects different size is irritated.
For achieving the above object, the present invention adopts following technical proposals:
A kind of tester involving vibrations casing, static housing, synchronous motor, kinematic train and control system that is used to detect vibration impact resistance of canister.It is characterized in that:
A, described kinematic train are impact cam of described synchronous machine drives, and the lower end of an impact push rod is leaning impact cam, and the base plate that is fixedly connected on the vibration casing behind the guide hole of top board of static housing is passed in the upper end.
B, described impact cam be detachable to be installed on the output shaft of synchronous motor, can according to circumstances change different impact cam.
C, described vibration casing have a plurality of casings to piece together the connection formation.
Above-mentioned vibration bottom half is a steel plate, and tank wall is to be made by transparent resin plate, and limiting plate is arranged on it, and guide rod, push rod.Be characterized in that the situation of the canister in the casing is high-visible, according to the size difference of tested canister, the position assurance canister of scalable limiting plate is only done the motion of horizontal direction in allowed limits.
The said fixing casing is the casing made from steel plate, it is characterized in that steel plate is connected with bolt with steel plate, has pad between plate.Simple in structure, be convenient to dismounting, and the certain impact shock that produces can absorb work the time, reduce the ambient vibration noise.
Above-mentioned control system comprises that mainly Single Chip Microcomputer (SCM) system, keyboard, proximity transducer, frequency converter, power supply etc. is characterized in that system can pre-determine the number of times of vibration and frequency etc., can count automatically when test, waits auto stop when reaching the predetermined impact number of times.And system can suspend in test midway, continues test etc. system's adjustment again after finishing.
Above-mentioned kinematic train mainly comprises synchronous motor, speed reduction unit, cam etc.Can adjust the vibratory impulse frequency by frequency converter according to different test requests, change amplitude and vibrational waveform by adjusting cam.
Above-mentioned blimp is one to be installed in the outer cover of the sealing on the static housing, has operation window on it.Be characterized in effectively to reduce the noise in the testing process.
The present invention has following conspicuous substantive distinguishing features and advantage compared with the prior art: the present invention can provide a vibratory impulse that can be used for simulating equivalence in canister transportation and the use, to detect the filling firmness of canister.The present invention uses cam to come drive system to produce impact shock, can produce bump, and its vibrational waveform can adjust in a big way, and needn't stick to sinusoidal waveform than high acceleration, amplitude also can be adjusted by adjusting cam, can satisfy the requirement that detects preferably.The present invention uses intelligence control system, in test process, waits unusually as finding that parts become flexible, and Parking permitted, to be adjusted may not the continuation to test in the back.Body is equipped with blimp outward, the noise during can be effective less test.Upper box uses limiting plate, limits canister motion in the horizontal direction.
Description of drawings
Fig. 1 is an overall perspective view of the present invention
Fig. 2 is a front view of the present invention
Fig. 3 is the impact cam schematic diagram
Fig. 4 is control structure figure of the present invention
Embodiment
A preferred embodiment of the present invention is: referring to Fig. 1, Fig. 2 and Fig. 3, originally be used to detect tester involving vibrations casing 1, static housing 8, synchronous motor 5, kinematic train and the control system of vibration impact resistance of canister.Described kinematic train is that the lower end that described synchronous motor 5 drives 13, impact push rods 12 of impact cam is leaning impact cam 13, and the base plate that is fixedly connected on vibration casing 1 behind the guide hole of top board 4 of static housing 8 is passed in the upper end.Described impact cam 13 is detachable to be installed on the output shaft of synchronous motor 5, can according to circumstances change different impact cam 13.Described vibration casing 1 has a plurality of casings to piece together the connection formation.Synchronous motor 5 is by a singlechip controller 6 and be connected and installed in the control of a photoelectric sensor 14 realizations of casing 8 top boards 4 to it.Can adorn a plurality of stops on the vibration casing 1.A regional A of impact cam 13 profiles does and sink to handle, when making vibration casing 1 do the movement of falling object downwards, only with static housing 8 on top board 4 clash into.The circuit structure of control system is: a single-chip microcomputer 20 isolates 17 by a photoelectricity, a frequency converter 15, a testing circuit 18 is connected synchronous motor 5 with a photoelectric encoder 19, formation is to the closed-loop control system of synchronous motor, and described photoelectric sensor 14 connects single-chip microcomputer 20 by outside input control terminal 22; A power module 16 provides working power for each component units.
The basic functional principle of tester is as follows: vibration casing 1 has three canister rest areas, and they relatively are evenly distributed with the vibrating bin build heart, and its center of gravity and the type heart are on same Z-axis, and be coaxial with impact push rod 12.When canister and stop 10 were uniformly distributed in the upper box, the center of gravity of vibration casing 1 was constant, still in type in the heart.Limiting plate 10 is fixing in position, in order to the motion in the horizontal direction of constraint canister.Canister does not have position constraint in vertical direction.Control box 6 is positioned over static housing 8 bottoms, and it can pass through guidance panel, selects to revise preset program, by changing the correlation parameter of control system, cooperates corresponding impact cam 13, the corresponding vibration frequency and the waveform that will produce in the time of can determining to test.And setting completed, can the start-up control system, begin test.At this moment, control system will be by preset program photoelectric isolating circuit 17, and by predetermined set output predetermined output voltage and frequency, the synchronous motor 5 that drives on the central dividing plate 7 that is contained in steel static housing 8 drives impact cam mechanism 13.Vibration casing 1 is fixed on the vertically moving push rod 11, rotates by impact cam 13, makes vibration casing 1 promote certain height by predetermined rule, drops on the steel top board 4 of static housing 8 by own wt then, produces the one-shot vibration.Vibration casing 1 vibratory impulse can clearly be observed the situation that canister is hit in the vibration casing by plexiglass tent 3.Can realize different vibrational waveforms and change height of drop and impact effect by changing different impact cam 13.The steel top board 4 of vibration casing 8 is lined with copper base wad sheet with fixing between the bearing of its position, by the thickness of adjustment different parts Upper gasket, can guarantee the levelness of the steel top board 4 of static housing 8.Pad also plays the effect of the ratio of damping that changes the vibration casing.(as Fig. 3) does and sink to handle impact cam 13 in the a-quadrant, when guaranteeing that vibrating casing 1 does freely falling body downwards, impacts push rod 12 and contact with impact cam 13, the steel top board 4 generation impacts of 1 of vibration casing and static housing.Control system is seen Fig. 4.System can preestablish correlation parameter (as vibration number, vibration frequency) or specify the use relative program to press the operation of designated movement rule or startup, time-out, end testing by keyboard.Control system and 17 couplings of synchronous motor 5 usefulness photoelectric isolating circuits, and by testing circuit 18 and the closed-loop speed control of photoelectric encoder 19 realizations to synchronous motor 5.On static housing steel top board 4, photoelectricity proximity transducer 14 is arranged, when vibration casing 1 impacts once downwards, then trigger the photoelectricity proximity transducer once, make the CPU of outside input control terminal in the single-chip microcomputer 20 of controller 9 send a low level by control system, when triggering times reaches the number of times of setting, control system will be sent the instruction synchronous motor 5 that stops, and finishes the canister sample and stop vibration automatically under the vibratory impulse number of times of regulation, waits the damaged condition of canister to be detected.
Claims (3)
1. tester that is used to detect vibration impact resistance of canister, involving vibrations casing (1), static housing (8), synchronous motor (5), kinematic train and control system is characterized in that:
A, described kinematic train are that described synchronous motor (5) drives an impact cam (13), the lower end of an impact push rod (12) is leaning impact cam (13), and the base plate that is fixedly connected on vibration casing (1) behind the guide hole of top board (4) of static housing (8) is passed in the upper end;
B, described impact cam (13) be detachable to be installed on the output shaft of synchronous motor (5), can according to circumstances change different impact cam (13);
C, described vibration casing (1) have a plurality of casings to piece together the connection formation;
Synchronous motor (5) is by a controller (6) and be connected and installed in the control of a photoelectric sensor (14) realization of static housing (8) top board (4) to it;
The circuit structure of described control system is: a single-chip microcomputer (20) is isolated (17) by a photoelectricity, a frequency converter (15), a testing circuit (18) is connected synchronous motor (5) with a photoelectric encoder (19), formation is to the closed-loop control system of synchronous motor, and described photoelectric sensor (14) connects single-chip microcomputer (20) by outside input control terminal (22); A power module (16) provides working power for each component units.
2. canister vibration and shock resistant tester according to claim 1 is characterized in that: can adorn a plurality of stops on the vibration casing (1).
3. the tester that is used to detect vibration impact resistance of canister according to claim 1, it is characterized in that: a regional A of impact cam (13) profile does to sink and handles, make vibration casing (1) when doing the movement of falling object downwards, only with static housing (8) on top board (4) clash into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102039725A CN101430238B (en) | 2008-12-04 | 2008-12-04 | Tester used for detecting vibration impact resistance of canister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102039725A CN101430238B (en) | 2008-12-04 | 2008-12-04 | Tester used for detecting vibration impact resistance of canister |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101430238A CN101430238A (en) | 2009-05-13 |
| CN101430238B true CN101430238B (en) | 2010-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102039725A Expired - Fee Related CN101430238B (en) | 2008-12-04 | 2008-12-04 | Tester used for detecting vibration impact resistance of canister |
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| CN (1) | CN101430238B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095565A (en) * | 2010-12-20 | 2011-06-15 | 张光辉 | Impact test bed |
| CN104669159A (en) * | 2014-12-29 | 2015-06-03 | 广州广电计量检测股份有限公司 | Automotive fuel pump vibration test fixture |
| KR20180104615A (en) | 2016-01-15 | 2018-09-21 | 고쿠사이 게이소쿠키 가부시키가이샤 | Engines and coaxial actuators |
| CN107748280A (en) * | 2017-10-19 | 2018-03-02 | 魏爱玲 | A kind of electric automatization testboard |
| CN109115438A (en) * | 2018-07-24 | 2019-01-01 | 郭瑞 | Disk design method occurs for frequency conversion sine wave oscillations exciting device and sine wave track |
| CN110296729B (en) * | 2019-07-01 | 2020-10-30 | 哈尔滨理工大学 | Dynamic reliability detection equipment of groove type photoelectric sensor |
| CN110779702A (en) * | 2019-11-19 | 2020-02-11 | 无锡职业技术学院 | Device for verifying durability of springs in batches |
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2008
- 2008-12-04 CN CN2008102039725A patent/CN101430238B/en not_active Expired - Fee Related
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| CN101430238A (en) | 2009-05-13 |
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Granted publication date: 20100818 Termination date: 20121204 |