CN102788676A - Pneumatic type high acceleration vertical impact table - Google Patents
Pneumatic type high acceleration vertical impact table Download PDFInfo
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- CN102788676A CN102788676A CN2012103211448A CN201210321144A CN102788676A CN 102788676 A CN102788676 A CN 102788676A CN 2012103211448 A CN2012103211448 A CN 2012103211448A CN 201210321144 A CN201210321144 A CN 201210321144A CN 102788676 A CN102788676 A CN 102788676A
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Abstract
The invention discloses a pneumatic type high acceleration vertical impact table, which mainly comprises a support frame, a impact cylinder, a piston assembly, a buffer mechanism, a piston limiting release mechanism and the like. The working process of the pneumatic type high acceleration vertical impact table is as follows: the piston assembly is assembled in the impact cylinder, and a piston is locked and limited by the piston limiting release mechanism, and then, the impact cylinder is rotated in a vertical status and well fixed, and the impact cylinder is inflated until reaching a setting pressure; the locking of the piston by the piston limiting release mechanism is removed, air in an air chamber of the impact cylinder can drive the piston assembly to make accelerated motion downwards; and when the piston collides a shock pad arranged on an anvil, a required impact acceleration and a pulse duration are generated. The pneumatic type high acceleration vertical impact table is compact in structure, easy to operate, capable of generating large impact energy and realizing different impact accelerations and pulse durations by adjusting an inflation pressure and the shock pad. The pneumatic type high acceleration vertical impact table is particularly suitable for a sample of which the mass is less than 0.5kg, and a acceleration of 500g-5000g and a half-sine impact wave shape with pulse duration of 10ms-3ms can be generated.
Description
Technical field
The present invention relates to the impulse test of dynamic environmental test technology, be specifically related to a kind of pneumatic type high acceleration vertical impact platform.
Background technology
Impact testing machine is mainly used in the dynamic environmental test of product; Can simulate actual shock pulse and impact energy; The examination product expect shock environment that possibly suffer in use, loading and unloading and transportation, with the adaptive faculty of definite product to various shock environments.
Vertical impact testing machine both domestic and external mainly adopts the mode of freely falling; Principle is that test products is installed on the platform; Adopt certain mode that platform is risen to certain height, release platform makes platform and product freely drop on the anvil block together then; Impact pad is installed, the surge waveform that generation needs on the anvil block.According to the difference of platform hoisting way, the vertical impact platform is divided into hydraulic pressure lift, airlift or leading screw hoisting way, no matter adopt which kind of hoisting way, free drop type shock testing machine impact capacity is less.The initial velocity of platform when impacting in order to increase; Some accelerators have also been adopted; Such as modes such as back-pressure spring, employing multiply elastic string prestretching platform, employing cylinder precompressed platform are installed, the drop type shock testing machine initial velocity that accelerator has been installed generally can reach 12m/s.Select the platform of 200 * 200mm for use, its maximum impact overload and duration of pulse can reach 1500g, 1～2ms.
Also having a kind of high acceleration shock platform, perhaps be installed in the high acceleration amplifier on the vertical impact platform, all is the principles that adopt the table top secondary collision, increases the relative impact velocity of table top, reaches big impact acceleration.The high acceleration shock platform mainly is in order to reach high impact acceleration, and the maximum impact acceleration can reach 50000g, but the duration of pulse is little, generally between 0.05～0.1ms.
Can realize the main at present Gas Gun that adopts of high acceleration and the device of long pulse duration, Gas Gun produces thump has dual mode, and a kind of is that the bullet that test product is installed is launched with power valve; Gases at high pressure act on the bullet bottom; Produce needed thump acceleration at the bullet accelerating sections, this method can obtain the wide duration of pulse, but lean on the bullet base pressure to produce high acceleration certain limitation is arranged; General acceleration is below 10000g, and the duration can reach 10ms.A kind of is that bullet after will speed up collides on the target; On bullet, produce approximate semisinusoidal waveform; Can regulate duration of shock pulse through changing the padded coaming of installing on the target; This mode can produce big impact acceleration, and impact acceleration can reach 50000g, and the duration of pulse can reach 1～3ms.No matter which kind of mode of employing, the Gas Gun power valve adds that breeze way is all very long, and according to the distinct transmit testing requirements, length is at 20m～100m, and floor area is big, and cost is high, and setup time is long, therefore is difficult to applied.
Summary of the invention
The object of the present invention is to provide a kind of pneumatic type high acceleration vertical impact platform; It can simulate the high energy impact events environment; Solved that drop type vertical impact platform can only produce high the acceleration and duration of pulse that can not reach broad, the technical conditions of the Gas Gun that can be up to the standard within the specific limits again, it is big to overcome the Gas Gun floor area; The shortcoming that involves great expense can be used for lab scale article high acceleration shock tests such as fuse, electronic devices and components.This pneumatic type high acceleration vertical impact platform maximum impact acceleration can reach 5000g, duration of pulse 1～5ms.
For realizing the foregoing invention purpose, the technical scheme that the present invention adopts is following:
This pneumatic type high acceleration vertical impact platform comprises:
One impacts tube, and it is fixedly installed on the support, and said impacts tube top is provided with impacts a tube air intake opening, and said impacts tube air intake opening be communicated with in order to the source of the gas that pressure gas is provided, simultaneously, also be provided with an impact gas outlet in the said impact tin;
One piston component; It is located at and impacts in the tube; And with impact a tube inner wall sealing and cooperate; And also can and impact between the tube lower end being free to slide at the select location between the impact tube two ends, said select location is positioned at and impacts an air intake opening below, and simultaneously said piston component upper end also is provided with at least one test product installation position;
The spacing releasing mechanism of one piston, it is used under first duty piston component being locked in the said select location that impacts on the tube, and under second duty piston component is being discharged in the said select location that impacts on the tube;
One anvil block, it is located at and impacts under the tube, and said anvil block is provided with impact pad.
As one of preferred version, the said tube that impacts is rack-mount through two feathering axis that are symmetrically distributed, and said impact tube can rotate arbitrarily around said turning axle.
As one of preferred version, said impact tube is rack-mount through buffer gear, and said buffer gear comprises rotation back-up block, buffer plate and buffering bearing; Wherein, be provided with swivel bearing in the said rotation back-up block, said swivel bearing be installed in the feathering axis that impacts on the tube and cooperate; And; Said rotation back-up block top is equipped with the spring guidepost, and the bottom is arranged on the buffer plate, on the said spring guidepost buffer spring is installed; Said buffer spring top is provided with block, and said buffer plate is installed on the buffering bearing.
As one of preferred version, said support comprises rack side plate, and said rotation back-up block and last block all are movably set in the draw-in groove that is distributed on the rack side plate, and all can vertically move.
As one of preferred version, said piston component comprises:
One piston, its upper end face is provided with at least one test product installation position, and outer wall is provided with above seal groove together, in the said seal groove piston packing is installed;
At least one buffering spacer, it is covered on the said test product;
And at least one is used for said buffering spacer and test product are pressed abd fixed on the gland nut on the piston.
As one of preferred version, said test product installation position comprises the test product mounting groove of being located at the piston upper surface.
As one of preferred version, the spacing releasing mechanism of said piston comprises a dead bolt, and said dead bolt can freely be walked in impacting a dead bolt hole of going up setting, and is sealed and matched with said dead bolt hole, and simultaneously, said dead bolt also is connected with retractable driving device.
As one of preferred version; The spacing releasing mechanism of said piston also comprises a dead bolt guide cylinder; Said dead bolt guide cylinder is fixedly connected with the impact tube; Said dead bolt is located in the said dead bolt guide cylinder, and said dead bolt also is sealed and matched through at least one dead bolt O-ring seal and said dead bolt guide cylinder and dead bolt hole.
As one of preferred version, said retractable driving device comprises the locking cylinder, and said locking cylinder is installed on the rack side plate in the said support through locking cylinder installing plate, and the piston rod of locking cylinder is fixedly connected with dead bolt.
As one of preferred version, said impact near said select location, also to be provided with in the tube be used to the position-limit mechanism that stops piston component up, said position-limit mechanism comprises and is distributed in the said lug boss that impacts on the inwall.
In addition,, also an air-channel system can be set in this pneumatic type high acceleration vertical impact platform, use the control that realizes more easily this pneumatic type high acceleration vertical impact platform course of work as one of preferred version.This air-channel system can comprise threeway, locking cylinder decompressor, locking cylinder solenoid valve, impacts the tube decompressor, impacts tube air inlet solenoid valve, impact assemblies such as tube pressure-releasing electromagnetic valve, four-way, pressure transducer, and the pressurized air of source of the gas output provides locking cylinder decompressor respectively, impacts the tube decompressor through threeway.Wherein, after the decompression of locking cylinder decompressor, be connected to locking cylinder solenoid valve, by the air feed and the venting of locking cylinder solenoid control locking cylinder; After impacting the decompression of tube decompressor; Be connected to and impact tube air inlet solenoid valve air intake opening; Impact tube air inlet electromagnetic valve outlet through a four-way; Be connected respectively to and impact tube, impact tube venting electromagnetism and a pressure transducer, impact the air inlet of tube air inlet solenoid control impact tube, impact the venting of tube pressure-releasing electromagnetic valve control impact tube.
Compared with prior art, the present invention has advantage at least:
1. the present invention has combined Gas Gun can produce the advantage of greater impact energy, takes the version of vertical impact testing table, can reach the existing inaccessible high-impact acceleration of vertical impact platform and than the requirement of long pulse duration.Can be used for the high impact overload test of fuse, small-sized electronic product.Novel structure of the present invention, cost are low, and make, transportation, install, use all very convenient.
2. installation and unloading test product are simple, only need to impact the angle that tube rotates to handled easily, just can load and unload piston component easily;
3. it is flexible that piston component is installed test product, and a plurality of test test products can be installed, and improves the efficient of test.Can also change and impact tube (reducing to impact the tube diameter) according to different testing requirementss, the small test product is reached higher impact acceleration requirement;
4. the impulsive force that needs very big buffing pad to come damper piston during the Gas Gun horizontal impact, and the present invention adopts vertical impact, impulsive force is directly delivered on the ground, has simplified the buffer structure of equipment greatly.Buffer air bag can also be installed on ground, effectively reduce the impulsive force that is delivered to ground;
5. test product is vertically to install in piston component, and the piston longitudinal rigidity is high, and the surge waveform of generation is good;
6. preferably adopt full air pressure drive system, drive energy is simple, easy to maintenance, and helps keeping the cleaning of environment.
Description of drawings
Fig. 1 is the structural representation of piston component and the spacing releasing mechanism of piston in the present invention's one preferred embodiment;
Fig. 2 is the structural representation of the present invention's one preferred embodiment;
Fig. 3 is the structural representation that impacts the tube clip in the present invention's one preferred embodiment;
Fig. 4 is the front view of buffer gear in the present invention's one preferred embodiment;
Fig. 5 is the side view of buffer gear in the present invention's one preferred embodiment;
Fig. 6 is the vertical view of buffer gear in the present invention's one preferred embodiment
Fig. 7 is the schematic diagram of gas circuit in the present invention's one preferred embodiment;
More than the parts of Reference numeral and indication thereof shown in each figure be respectively:
1, support; 2, impact the tube air intake opening; 3, impact tube; 4, rack side plate; 5, impact pad; 6, anvil block; 7, base plate; 8, gland nut; 9, buffering spacer; 10, test product; 11, piston packing; 12, piston; 13, dead bolt guide cylinder; 14, dead bolt; 15, dead bolt O-ring seal; 16, locking cylinder; 17, locking cylinder installing plate; 18, back clip; 19, clip mount pad; 20, preceding clip; 21, go up block; 22, buffer spring; 23, spring guidepost; 24, rotation back-up block; 25, swivel bearing; 26, turning axle; 27, buffer plate; 28, buffering bearing; 29, source of the gas; 30, threeway; 31, locking cylinder decompressor; 32, locking cylinder solenoid valve; 33, impact the tube decompressor; 34, impact tube air inlet solenoid valve; 35, impact tube pressure-releasing electromagnetic valve valve; 36, pressure transducer; 37, four-way.
Embodiment
Because many defectives of the prior art, this case inventor has proposed a kind of novel vertical impact testing equipment after studying for a long period of time and putting into practice in a large number, use the needs that satisfy practical application.A following combination preferred embodiment of the present invention elaborates to content of the present invention.
The related pneumatic type high acceleration vertical impact platform of this preferred embodiment mainly is made up of piston component, buffer gear, the spacing releasing mechanism of piston, support, impact tube etc., wherein,
Said piston component can comprise gland nut, buffering spacer, test product, piston packing, piston.The facial groove that test product is installed that has in piston upper end, circumferencial direction has the two seals groove, and piston packing is installed, and after test product installs, covers with buffering spacer, tightens gland nut again, guarantees that test product compresses.Perhaps, as another selectable scheme, test product also can be directly installed on the upper surface of piston, and according to the size of test product a plurality of test products can be installed, and compresses test product by buffering spacer and gland nut equally.
Said buffer gear can comprise block, buffer spring, spring guidepost, rotation back-up block, swivel bearing, turning axle, buffer plate, buffering bearing.In the rotation back-up block swivel bearing is installed, the rotary sleeve on the impact tube is in the rotation back-up block, and the back-up block bottom of walking around is dropped on the buffer plate, and buffer plate is installed on the buffering bearing.Rotation back-up block top mounting spring guidepost is installed buffer spring on the spring guidepost, goes up block by one topmost and compresses buffer spring.
The spacing releasing mechanism of said piston can comprise dead bolt guide cylinder, dead bolt, dead bolt O-ring seal, locking cylinder, locking cylinder installing plate.Impact the hole that has a dead bolt on the tube; Impact dead bolt guide cylinder of tube welding, dead bolt is installed in the guide cylinder, and two dead bolt O-ring seals are installed on the dead bolt; Dead bolt connects the piston rod of locking cylinder at the back, and the locking cylinder is installed on the rack side plate through locking cylinder installing plate.
Postscript; Also can comprise an air-channel system in this preferred embodiment, this air-channel system can comprise threeway, locking cylinder decompressor, locking cylinder solenoid valve, impacts the tube decompressor, impacts tube air inlet solenoid valve, impact tube pressure-releasing electromagnetic valve, four-way, pressure transducer.The pressurized air of source of the gas output provides locking cylinder decompressor respectively, impacts the tube decompressor through threeway.After the decompression of locking cylinder decompressor, be connected to locking cylinder solenoid valve, by the air feed and the venting of locking cylinder solenoid control locking cylinder; After impacting the decompression of tube decompressor; Be connected to and impact tube air inlet solenoid valve air intake opening; Impact tube air inlet electromagnetic valve outlet through a four-way; Be connected respectively to and impact tube, impact tube venting electromagnetism and a pressure transducer, impact the air inlet of tube air inlet solenoid control impact tube, impact the venting of tube pressure-releasing electromagnetic valve control impact tube.
In the such scheme, said impact tube can be installed on the buffer gear through a turning axle, impacts tube and can rotate arbitrarily around turning axle, and the convenient tube that impacts is installed piston component at horizontal level.
In the such scheme, described impact tube is supported by buffer gear, in impact process, slows down and impacts the impulsive force of tube to support.
In the such scheme, said rotation back-up block is stuck in the groove of rack side plate, can move up and down.Last block also is installed in the U-lag of rack side plate, can adjust the position up and down, the original pressure of adjustment buffer spring.
In the such scheme, said test product is directly installed in the groove of upper surface of piston, according to the size of test product a plurality of test products can be installed, and top compresses test product with buffering spacer, gland nut.
In the such scheme, said impact tube is gone up dead bolt guide cylinder of welding, impacts tube and has opened a dead bolt hole in dead bolt guide cylinder position, and dead bolt and dead bolt guide cylinder seal with two dead bolt O-ring seals, and the gas that guarantees to impact in the tube can not leak through the dead bolt guide cylinder.
In the such scheme, there is boss said impact tube inside in the position on the upper side, guarantees that piston component shifts the spacing position of piston cylinder onto and just make dead bolt stretch out latching ram.
In the such scheme, said impact tube top is installed one and is impacted the tube air intake opening, two turning axles of middle part symmetry welding, dead bolt guide cylinder of the positive bottom welding of turning axle.
In the such scheme, said support is by channel-section steel or square steel welding, and frame bottom is welded on the base plate, and rack side plate top directly is welded on support top, and the side is welded on the support with reinforcement, and the bottom is welded on the base plate.An anvil block is installed on the base plate, is freely placed an impact pad on the anvil block.
In the such scheme, two clip mount pads are installed on said side plate top, and former and later two clips are installed on the clip mount pad, are used for blocking the impact tube in an impact tube upright position.
In the such scheme, impact the tube diameter, impact between tube effective travel 300～600mm working pressure 1MPa～10Mpa at 100～200mm.Locking cylinder diameter Φ 60～Φ 100mm, working pressure 1～6MPa.
This pneumatic type high acceleration vertical impact platform can be confirmed to impact the pressure that tube needs earlier according to the impact acceleration and the duration of pulse of test product test needs when work, selects corresponding impact pad for use.In advance through locking cylinder decompressor and an impact tube decompressor adjustment locking cylinder and an impact tube charge pressure.
The course of work of this pneumatic type high acceleration vertical impact platform can for:
Take off piston, test product is installed in the mounting groove on piston top, top compresses test product with buffering spacer, gland nut.Open and impact the tube pressure-releasing electromagnetic valve, impact tube air intake opening and atmosphere and connect.To impact the tube horizontal positioned, put into piston component, piston component shifted onto the positive stop lug boss position of impacting tube with a push rod; Open locking cylinder solenoid valve, the inflation of locking cylinder forward, the locking cylinder piston rod outwards moves; The promotion dead bolt stretches out, and dead bolt inserts and impacts in the tube, prevents that piston from falling.To impact tube turn over turn 90 degrees the upright position after, be close to preceding clip, tighten the back clip then, the position of tube is impacted in restriction.
After installment work is accomplished, close and impact the tube pressure-releasing electromagnetic valve, open and impact tube air inlet solenoid valve, impact the tube air inlet, detect by pressure transducer and impact tube pressure after set pressure, close and impact tube air inlet solenoid valve.Close locking cylinder solenoid valve, the venting of locking cylinder forward, reverse air inlet, the withdrawal of locking cylinder piston rod, the pulling dead bolt withdraws from and impacts tube, release plunger.Piston component is under the effect of impacting the tube upper pressure, and accelerated motion collides the impact pad of installing on the anvil block up to piston lower surface, produces needed surge waveform.After impacting completion, impact a tube pressure-releasing electromagnetic valve and open, bleed off the residual gas that impacts in the tube.The one-shot test is accomplished.
Through the rigidity regulating impulse duration of adjustment impact pad, impact pad can adopt materials such as rubber slab, felt, ox-hide, copper coin.
Impact the charge pressure of tube through adjustment and can conveniently regulate the maximum impact accekeration.It is big to impact tube surge pressure setting range, so impact acceleration has bigger setting range.
Before test, need impact acceleration and duration of pulse to demarcate, impact the charge pressure of tube and choose suitable impact pad with definite.Demarcation can adopt built-in miniature acceleration demarcating module to be installed in the enterprising rower location survey of piston amount.For the ease of the acceleration demarcating module is installed, can design piston component again, identical the getting final product of piston component weight that the weight of feasible demarcation piston component and test are adopted.
Further, consulting Fig. 1-shown in Figure 7 is a preferred embodiment of the present invention, and present embodiment impacts a tube internal diameter Ф 150mm, and impacting the tube length degree is 1500mm, and piston motion stroke 500mm impacts a tube design pressure 6MPa, piston and test product general assembly (TW) 15kg.The maximum impact end speed can reach 65m/s.
Present embodiment gas is locked cylinder nominal diameter 100mm, maximum design pressure 6MPa to piston maximum thrust 105kN.
The source of the gas of present embodiment is provided by an air compressor, source of the gas rated pressure 10MPa, and flow is not less than 750L/min.Impact tube charge pressure adjustable range 1～6MPa, locking cylinder scalable power scope 1～6MPa.Also can use nitrogen cylinder to be source of the gas.
The accessible technical indicator of present embodiment is:
1, impact acceleration scope: 500～5000g
2, duration of shock pulse: 10～3ms
3, velocity variable: 120m/s.
Present embodiment is particularly suited for quality less than the 0.5kg test product.
Each parts and the annexation thereof of present embodiment are:
In the rotation back-up block 24 swivel bearing 25 is installed; The turning axle 26 that impacts on the tube 3 is enclosed within the back-up block 24 of walking around; Back-up block 24 bottoms of walking around are dropped on the buffer plate 27; Four screws of buffer plate 27 usefulness are installed on the cushions seat 28, and four screws of buffering bearing 28 usefulness are installed on the bearing side plate 4.Spring guidepost 23 is welded to rotation back-up block 24 tops, and buffer spring 22 is installed on the spring guidepost 23, goes up block 21 by one topmost and compresses buffer spring 22, and four screws of last block 21 usefulness are installed on the rack side plate 4.
Dead bolt guide cylinder 13 is welded on and impacts on the tube 3; Dead bolt 14 is installed in the guide cylinder 13; Dead bolt 14 circumferencial directions have two seal grooves, and two dead bolt O-ring seals 15 are installed, and dead bolt 14 rear threads holes are connected with the threaded piston rod of locking cylinder 16; Four screws of locking cylinder 16 usefulness are connected earlier on the locking cylinder installing plate 17, use four screw retention again on rack side plate 4 on the locking cylinder installing plate 17.
About 3 screw retention of two clip mount pad 19 usefulness on rack side plate 4, preceding clip 20 uses two screw retention respectively on clip mount pad 19 with back clip 18.
Support 1 is welded on the base plate 7, and rack side plate 4 tops directly are welded on support 1 top, and the side is welded on the support 1 with reinforcement, and the bottom is welded on the base plate 7.Four screw retention of anvil block 6 usefulness are freely placed an impact pad 5 on the anvil block 6 on base plate 7.
Source of the gas 29 links to each other with threeway 30 through tracheae, threeway 30 tow channel gas, the one tunnel links to each other with inflator pump reduction valve 33, the one tunnel with lock cylinder reduction valve 31 and link to each other.31 outlets of locking cylinder reduction valve connect locking cylinder solenoid valves 32, and locking cylinder solenoid valve 32 is two 5 three-way electromagnetic valves, often drive wherein that gas port is connected with locking cylinder 16 reverse air intake openings into, normally closed air intake opening with lock cylinder 16 forward air intake openings and be connected.33 outlets of inflator pump reduction valve connect impacts an air inlet solenoid valve 34, impacts 34 outlets of tube air inlet solenoid valve and connects a four-way 37, and four-way 37 connects an impact tube pressure-releasing electromagnetic valve 35, pressure transducer 36 respectively and impacts tube air intake opening 2.
In the foregoing description, except using inside nominal diameter to connect as the high-pressure metal flexible pipe of Ф 6 between four-way 37 and the impact tube air intake opening 2, all the other all adopt inside nominal diameter is Ф 8 Stainless Steel steel pipes, the interface selection standard interface of each gas circuit device.
In the foregoing description, the welding of support 1 usefulness seamless cold square steel tube (GB3094-82a), square steel is selected specification 80 * 60 * 4 for use, support 1 width 850mm, overall height 2100mm.Rack side plate 4 is selected the 20mm steel plate for use, steel plate materials Q235, width 200mm.Rack side plate about 4 each square steel and support 1 welding with specification 80 * 60 * 4.
In the foregoing description, footpath 40mm in the buffer spring 22, spring diameter 8mm, the number of turn 15, initial length 260mm, last block 21 compression back length are 180mm.
In the foregoing description, buffer plate 27 adopts nylon 66 nonmetallic materials, has not only guaranteed certain rigidity but also buffering effect is preferably arranged.
In the foregoing description, rotation back-up block 24 for being slidingly matched, guarantees in impact process, to impact not double swerve of tube 3 in the groove of rack side plate 4.
In the foregoing description, piston 12 middle can being provided with alleviate groove, also can be according to the piston component of different test products 10 design different structures.
The course of work of present embodiment can for: after will impacting tube and going to horizontal level, piston component put into is impacted tube, dead bolt stretches out, and piston is spacing.To impact tube then and go to plumbness; After fixing with clip, give and impact the tube inflation, be inflated to set pressure; Locking cylinder is extracted dead bolt; The downward accelerated motion of air push piston component in the air chamber, the impact pad on the piston collisions anvil block, impact acceleration and duration of pulse that generation needs.
Present embodiment is simple and compact for structure, through the accelerated motion of high pressure air drives piston, can produce bigger impact energy, and through regulating charge pressure and impact pad, can realize different impact accelerations and duration of pulse.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or revise, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. pneumatic type high acceleration vertical impact platform is characterized in that it comprises:
One impacts tube (3); It is fixedly installed on the support (1), and said impact tube (3) top is provided with impacts a tube air intake opening (2), and said an impacts air intake opening (2) be communicated with in order to the source of the gas that pressure gas is provided; Simultaneously, also be provided with an impact tube gas outlet on the said impact tube (3);
One piston component; It is located at and impacts in the tube (3); And with impact tube (a 3) inner wall sealing and cooperate; And also can and impact between the tube lower end being free to slide at the select location between the impact tube two ends, said select location is positioned at and impacts air intake opening (a 2) below, and simultaneously said piston component upper end also is provided with at least one test product installation position;
The spacing releasing mechanism of one piston, it is used under first duty piston component being locked in the said select location that impacts on the tube, and under second duty piston component is being discharged in the said select location that impacts on the tube;
One anvil block (6), it is located at and impacts under the tube (3), and said anvil block (6) is provided with impact pad (5).
2. pneumatic type high acceleration vertical impact platform according to claim 1; It is characterized in that; The said tube (3) that impacts is to be installed on the support (1) through two feathering axis (26) that are symmetrically distributed, and said impact tube (3) can be around said turning axle (26) rotation arbitrarily.
3. pneumatic type high acceleration vertical impact platform according to claim 2 is characterized in that, said impact tube (3) is installed on the support (1) through buffer gear; Said buffer gear comprises rotation back-up block (24), buffer plate (27) and buffering bearing (28); Wherein, be provided with swivel bearing (25) in the said rotation back-up block (24), said swivel bearing (25) be installed in the feathering axis (26) that impacts on the tube (3) and cooperate; And; Said rotation back-up block (24) top is equipped with spring guidepost (23), and the bottom is arranged on the buffer plate (27), and buffer spring (22) is installed on the said spring guidepost (23); Said buffer spring (22) top is provided with block (21), and said buffer plate (27) is installed on the buffering bearing (28).
4. pneumatic type high acceleration vertical impact platform according to claim 3; It is characterized in that: said support (1) comprises rack side plate (4); Said rotation back-up block (24) and last block (21) all are movably set in the draw-in groove that is distributed on the rack side plate (4), and all can vertically move.
5. pneumatic type high acceleration vertical impact platform according to claim 1 is characterized in that said piston component comprises:
One piston (12), its upper end face is provided with at least one test product installation position, and outer wall is provided with above seal groove together, and piston packing (11) is installed in the said seal groove;
At least one buffering spacer (9), it is covered on the said test product (10);
And at least one is used for said buffering spacer (9) and test product (10) are pressed abd fixed on the gland nut (8) on the piston (12).
6. pneumatic type high acceleration vertical impact platform according to claim 5 is characterized in that said test product installation position comprises the test product mounting groove of being located at piston (12) upper surface.
7. according to each described pneumatic type high acceleration vertical impact platform among the claim 1-6; It is characterized in that; The spacing releasing mechanism of said piston comprises a dead bolt (14), and said dead bolt (14) can freely be walked in impact tube (3) is gone up the dead bolt hole that is provided with, and is sealed and matched with said dead bolt hole; Simultaneously, said dead bolt (14) also is connected with retractable driving device.
8. pneumatic type high acceleration vertical impact platform according to claim 7; It is characterized in that; The spacing releasing mechanism of said piston also comprises a dead bolt guide cylinder (13); Said dead bolt guide cylinder (13) is fixedly connected with impacting tube (3), and said dead bolt (14) is located in the said dead bolt guide cylinder (13), and said dead bolt (14) also is sealed and matched through at least one dead bolt O-ring seal (15) and said dead bolt guide cylinder (13) and dead bolt hole.
9. pneumatic type high acceleration vertical impact platform according to claim 7; It is characterized in that; Said retractable driving device comprises locking cylinder (16); Said locking cylinder (16) is installed on the rack side plate (4) in the said support (1) through locking cylinder installing plate (17), and the piston rod of locking cylinder (16) is fixedly connected with dead bolt (14).
10. pneumatic type high acceleration vertical impact platform according to claim 7; It is characterized in that; Said impact near said select location, also to be provided with in the tube (3) be used to the position-limit mechanism that stops piston component up, said position-limit mechanism comprises and is distributed in the said lug boss that impacts on tube (3) inwall.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335903A (en) * | 2013-06-20 | 2013-10-02 | 山东理工大学 | Blasting disturbance impact load precise simulation device |
| CN105387986A (en) * | 2015-11-25 | 2016-03-09 | 浙江吉利汽车研究院有限公司 | Power device for auto part impact test |
| CN105509987A (en) * | 2015-12-31 | 2016-04-20 | 苏州东菱振动试验仪器有限公司 | Large-load high-g-value pneumatic vertical impact testbed |
| CN106918435A (en) * | 2017-04-21 | 2017-07-04 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of integrated blow cylinder device |
| CN107192529A (en) * | 2017-05-25 | 2017-09-22 | 青岛理工大学 | Ocean floater striking analogue test system |
| CN110005356A (en) * | 2019-04-12 | 2019-07-12 | 西安科技大学 | A kind of strong hydraulic pulse generator of low frequency equal-pressure-difference and its pulsation method for generation |
| CN110208577A (en) * | 2019-07-12 | 2019-09-06 | 北京航天计量测试技术研究所 | A kind of structure excited by impact and calibrating installation of shock accelerometer calibrating installation |
| CN111413517A (en) * | 2020-05-06 | 2020-07-14 | 苏州笛灵科技有限公司 | Air-throwing impact type calibration device of acceleration sensor and using method thereof |
| CN113776767A (en) * | 2021-07-23 | 2021-12-10 | 青岛丰一顺海事工程技术有限公司 | Marine rubber air bag impact-resistant fatigue factory detection device |
| CN114878131A (en) * | 2022-07-11 | 2022-08-09 | 江苏金秋竹集团有限公司 | Protective door impact test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335903A (en) * | 2013-06-20 | 2013-10-02 | 山东理工大学 | Blasting disturbance impact load precise simulation device |
| CN103335903B (en) * | 2013-06-20 | 2015-11-11 | 山东理工大学 | Blast disturbance shock load precise simulation device |
| CN105387986A (en) * | 2015-11-25 | 2016-03-09 | 浙江吉利汽车研究院有限公司 | Power device for auto part impact test |
| CN105387986B (en) * | 2015-11-25 | 2018-02-06 | 浙江吉利汽车研究院有限公司 | A kind of power set of auto parts and components impact test |
| CN105509987A (en) * | 2015-12-31 | 2016-04-20 | 苏州东菱振动试验仪器有限公司 | Large-load high-g-value pneumatic vertical impact testbed |
| CN106918435A (en) * | 2017-04-21 | 2017-07-04 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of integrated blow cylinder device |
| CN107192529A (en) * | 2017-05-25 | 2017-09-22 | 青岛理工大学 | Ocean floater striking analogue test system |
| CN110005356A (en) * | 2019-04-12 | 2019-07-12 | 西安科技大学 | A kind of strong hydraulic pulse generator of low frequency equal-pressure-difference and its pulsation method for generation |
| CN110208577A (en) * | 2019-07-12 | 2019-09-06 | 北京航天计量测试技术研究所 | A kind of structure excited by impact and calibrating installation of shock accelerometer calibrating installation |
| CN111413517A (en) * | 2020-05-06 | 2020-07-14 | 苏州笛灵科技有限公司 | Air-throwing impact type calibration device of acceleration sensor and using method thereof |
| CN113776767A (en) * | 2021-07-23 | 2021-12-10 | 青岛丰一顺海事工程技术有限公司 | Marine rubber air bag impact-resistant fatigue factory detection device |
| CN114878131A (en) * | 2022-07-11 | 2022-08-09 | 江苏金秋竹集团有限公司 | Protective door impact test device |
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