CN1975368A - Packaging piece fall-down test machine - Google Patents
Packaging piece fall-down test machine Download PDFInfo
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- CN1975368A CN1975368A CN 200610095326 CN200610095326A CN1975368A CN 1975368 A CN1975368 A CN 1975368A CN 200610095326 CN200610095326 CN 200610095326 CN 200610095326 A CN200610095326 A CN 200610095326A CN 1975368 A CN1975368 A CN 1975368A
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000004806 packaging method and process Methods 0.000 title claims description 11
- 230000007306 turnover Effects 0.000 claims description 37
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 6
- 230000001737 promoting effect Effects 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 5
- 230000001012 protector Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 240000006909 Tilia x europaea Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
This invention disclosed a testing machine for packed pieces falling. There are two air cylinders on the beam; the two plunger poles were connected to the axe via a brace; the front and back part of the cylinders lumen was connected to the port of the reversing valve respectively, via two windpipes; there is a one-way valve on the second windpipe, and the two ports of the valve were connected to the high pressure gas source. This invention was designed according to the GB standard so that the accuracy was high.
Description
Technical field
The present invention relates to a kind of by free-falling to the checkout equipment that the packing object carries out vertical impact experiment, relate in particular to a kind of packaging piece fall-down test machine.
Background technology
For satisfying the requirement of relevant national standard, need carry out drop test to package, with the evaluation package when being subjected to vertical impact impact strength and package to the protective capability of product, guarantee security of products.Initial drop test is by manually package being lifted to certain altitude, loosed one's grip simultaneously then, package is fallen, reexamining its damaged situation.This detection mode labour intensity is big, efficient is low, and the accuracy of experiment is not high.
Along with the development of technology, people have invented piece fall-down test machine, and it is by lifting gear turnover panel to be raised to the height of regulation along column tube, and package is placed on the turnover panel, starts control gear then, make the turnover panel upset, and package drops down to shock plate.Existing piece fall-down test machine ubiquity is following not enough:
1, no matter be to adopt single fan turnover panel or biparting turnover panel, when upset, all can not instantaneously finish fast, be placed on package on the turnover panel so at first along the certain stroke of turnover panel landing, just enter then and fall state, its initial motion state is not a freely falling body, the relevant regulations of this and drop test national standard is inconsistent, to such an extent as to the accuracy of experiment is undesirable.
2, do not promote protection mechanism; make parts such as turnover panel when column tube moves up and down at the control lifting gear; operating personnel get and keep notice to concentrate constantly; otherwise the stroke of the easy overshoots of parts such as turnover panel; clash into the top or the bottom of experimental machine; cause components damage, influence the serviceable life of whole experimental machine.
3, the entire equipment complex structure costs an arm and a leg, and is difficult to be accepted by the user.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of packaging piece fall-down test machine, is freely falling body with the initial motion state of protective packing part.
Technical scheme of the present invention is as follows: a kind of packaging piece fall-down test machine, comprise base plate, shock plate, column tube, crossbeam, turnover panel and lifting gear, wherein two root post pipes be arranged in parallel, fixedly connected with base plate in its bottom, crossbeam is installed on two column tubes, under the effect of lifting gear, crossbeam can move up and down along column tube, its key is: two cylinders are installed on described crossbeam, the piston rod of two cylinders is located along the same line, and stretches out laterally with opposite direction, and the outer end of piston rod is connected with rotating plate shaft by crank, this rotating plate shaft is perpendicular to the piston rod of cylinder, and is fixed with turnover panel on the rotating plate shaft; The front end of described two cylinder inner cavities communicates by one of them outlet of first tracheae and three position four-way directional control valve, the rear end of two cylinder inner cavities communicates with another outlet of three position four-way directional control valve by second tracheae, unidirectional quick release valve is housed on second tracheae, one of them import of described three position four-way directional control valve is joined by the 3rd tracheae and high-pressure air source, and its another import is connected by the 4th tracheae and also is connected with high-pressure air source behind the manual air valve; Described lifting gear comprises motor, transmission shaft, drive sprocket, drive sprocket, promote chain, driven shaft and driven sprocket, wherein transmission shaft by bearing block support on base plate, driven shaft is by the upper end of bearing block support at column tube, described motor is fixed on the base plate, the motor sprocket of installing on its output shaft is connected with drive sprocket by chain, this drive sprocket is sleeved on the axle body of transmission shaft, drive sprocket is installed at two ends at transmission shaft, this drive sprocket is by promoting corresponding driven sprocket connection on chain and the driven shaft, described lifting chain passes from crossbeam, and by wire clamp crossbeam is clamped on the lifting chain.
Adopt above technical scheme, when initial, high-pressure air source is by the 3rd tracheae, reversal valve, second tracheae and unidirectional quick release valve communicate with the rear end of cylinder inner cavity, high pressure gas promotes the piston in the cylinder, make piston advances forward, piston rod is protruding, crank is converted into rotating counterclockwise of rotating plate shaft with the rectilinear motion of piston rod, make two turnover panels be in horizontality, has spacing between two turnover panels, can be placed into package to be detected between two turnover panels this moment, edge by turnover panel supports, start manual air valve then, make reversal valve change the path of high pressure gas, high pressure gas is through reversal valve, first tracheae communicates with the front end of cylinder inner cavity, high pressure gas promotes the piston in the cylinder, piston is moved backward, high pressure gas in the cylinder is discharged in the atmosphere fast by unidirectional quick release valve, thereby accelerates the speed that piston moves backward, and piston rod is bounced back fast, piston rod drives the dextrorotation of rotating plate shaft high speed by crank and turn 90 degrees, turnover panel is overturn downwards, and package loses support suddenly, drops down with freely falling body, thereby be consistent with the relevant regulations of drop test national standard, reach the purpose of accurate experiment.The lifting gear stable drive, under the control of motor, crossbeam moves up and down with promoting chain, to satisfy the needs that carry out drop test at differing heights.
As preferably, the piston rod of above-mentioned cylinder and the upper end of crank are hinged, and the lower end of crank is sleeved on the rotating plate shaft, and is connected with rotating plate shaft by flat key; The outer end of described turnover panel is sleeved on the rotating plate shaft, and fixing with the rotating plate shaft welding.Because the crank pivoted arm is long-range wide less than turnover panel, under the identical situation of piston travelling speed, the speed that the linear velocity at turnover panel edge promotes much larger than piston, more shortened the disengaging time of measured piece and turnover panel, falling aloft of measured piece limit and angle is not subjected to displacement, the original state that keeps measured piece to place, thus satisfied the needs of the fall-down test of face, angle, multiple position, limit.
All be equipped with in the inner of above-mentioned two turnover panels and widen bar, to adapt to the needs that detect the different size package.
Be provided with the absolute altitude seat in the outside of above-mentioned column tube, have the absolute altitude chi that indicates height on this absolute altitude seat, be provided with the absolute altitude pointer on the described crossbeam accordingly.The absolute altitude pointer moves with crossbeam, and points to height number corresponding on the absolute altitude chi, accurately reflects the height of drop test.
Be equipped with near switch in the upper end of above-mentioned absolute altitude seat, be equipped with down near switch the lower end of absolute altitude seat.When crossbeam was up near the switch place, under last effect near switch, motor can only reverse, and crossbeam can only be descending; In like manner, when crossbeam went downwards to down near the switch place, under following effect near switch, motor can only just change, and crossbeam can only be up.The stroke limiting of crossbeam has so effectively been avoided the stroke of crossbeam overshoot and has been clashed into other parts of experimental machine top or bottom, has strengthened the security of lifting gear operation.
On the above-mentioned wherein top of a root post pipe cutoff limit switch is housed, cutoff limit switch is positioned at the top near switch on this, and the cutoff limit switch is installed down on the described base plate, this time cutoff limit switch be positioned at crossbeam under.When upper and lower during near switch failure, crossbeam runs to the cutoff limit-switch positions and the cutoff limit switch is gone up in collision like this, and its normally closed switch disconnects, and motor stops operating; Crossbeam runs to down cutoff limit switch under cutoff limit-switch positions and the collision, and its normally closed switch disconnects, and motor stops operating, thereby has further strengthened the security of lifting gear operation.
The invention has the beneficial effects as follows:
1, under the effect of unidirectional quick release valve, the flip-flop movement of turnover panel can instantaneously be finished fast, and the initial motion state that has guaranteed package is a freely falling body, thereby is consistent with the relevant regulations of drop test national standard, has ensured the accuracy of experiment.
2, lifting gear and whole experimental machine is simple in structure, easy to operate, and its cost more holds susceptible to user acceptance far below the like product of prior art.
3, the stroke range up and down of crossbeam is protected, has avoided clashing into because of the crossbeam that occurs under the situations such as maloperation and other parts of experimental machine top or bottom, has strengthened the security of complete machine work, and has prolonged the serviceable life of complete machine greatly.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the A-A cutaway view Amplified image of Fig. 1.
Fig. 4 is a gas circuit control chart of the present invention.
Fig. 5 is circuit theory diagrams of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
As Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5; the present invention is made of several major parts such as body, upset control gear, lifting gear, protection absolute altitude mechanism, gas circuit control gear and circuit control gears; wherein body has base plate 1, column tube 3, crossbeam 4 and shell 33; two root post pipes 3 be arranged in parallel and are vertical with respect to base plate 1; fixedly connected with base plate 1 by column cover 3a in the bottom of column tube 3, top board 34 is equipped with on its top.Shell 33 surrounds column tube 3 and be fixed on the base plate 1 with the form of partly enclosing, and has shock plate 2, the both sides of shock plate 2 to have to prevent the guardrail 2a that outwards rolls after package falls in the tiling of the next door of base plate 1.Have balance pipe 35 at the rear of column tube 3, the upper end of balance pipe 35 is fixed on the top board 34, and its lower end is supported by base plate 1, is isosceles triangle between balance pipe 35 and the two root post pipes 3 and distributes, and plays stable support.Described crossbeam 4 is a through-pipe structure, have two mounting holes that adapt with two column tubes 3 on crossbeam 4, crossbeam 4 is sleeved on two column tubes 3 by this mounting hole, is fixed by lifting gear, and under the effect of lifting gear, crossbeam 4 can move up and down along column tube 3.
As shown in Figure 1 and Figure 2, the upset control gear is made of parts such as cylinder 6, crank 7, rotating plate shaft 8 and turnover panels 5, wherein two cylinders 6 are fixed on the crossbeam 4 by mount pad 36, the piston rod 6a of two cylinders 6 is located along the same line, and stretch out laterally with opposite direction, the upper end of the outer end of piston rod 6a and bent tenon 7 is hinged, the lower end of crank 7 is sleeved on the rotating plate shaft 8, and be connected with rotating plate shaft 8 by flat key, rotating plate shaft 8 is perpendicular to the piston rod 6a of cylinder 6, under the effect of crank 7, the flexible rectilinear motion of piston rod 6a is converted to the rotation of rotating plate shaft 8.The outer end of two turnover panels 5 is set on the corresponding rotating plate shaft 8, and fixing with rotating plate shaft 8 welding, and when being in the state of supporting package spare, two turnover panels 5 are located in the same horizontal plane, and have spacing between two turnover panels 5.All be equipped with in the inner of two turnover panels 5 and widen bar 5a, to adapt to the needs that detect the different size package.Be set with axle sleeve 37 on the rotating plate shaft 8 between turnover panel 5 and the crank 7, this axle sleeve 37 is fixed on the crossbeam 4.
As Fig. 1, Fig. 2 and shown in Figure 3, lifting gear comprises motor 17, transmission shaft 18, drive sprocket 19, drive sprocket 20, promotes parts such as chain 21, driven shaft 22 and driven sprocket 23, wherein driven shaft 22 and transmission shaft 18 be arranged in parallel one on the other, transmission shaft 18 is supported on the base plate 1 by bearing seat 38, and driven shaft 22 is bearing on the top board 34 of column tube 3 upper ends by bearing seat 39.Motor 17 is selected the cycloidal-pin wheel motor that carries reductor for use, and be fixed on the base plate 1, motor sprocket 24 is installed on its output shaft, this motor sprocket 24 is connected with drive sprocket 19 by chain, drive sprocket 19 is sleeved on the axle body of transmission shaft 18, drive sprocket 20 is installed at two ends at transmission shaft 18, this drive sprocket 20 is by promoting corresponding driven sprocket 23 connections on chain 21 and the driven shaft 22, described lifting chain 21 passes from crossbeam 4, and by wire clamp 25 crossbeam 4 is clamped on and promotes on the chain 21, make the crossbeam 4 can be with promoting chain 21 motions.
As shown in Figure 1 and Figure 2, protection absolute altitude mechanism has absolute altitude seat 26, and this absolute altitude seat 26 is positioned at the outside of shell 33, has the absolute altitude chi 27 that indicates height on absolute altitude seat 26, is provided with absolute altitude pointer 28 accordingly on the described crossbeam 4.Upper end at described absolute altitude seat 26 is equipped with by switch base near switch 29, and be equipped with down near switch 30 lower end of absolute altitude seat 26.On top cutoff limit switch 31 is housed near the column tube 3 of absolute altitude seat 26, upward cutoff limit switch 31 is positioned at the top near switch 29, on the described base plate 1 cutoff limit switch 32 is installed down, this time cutoff limit switch 32 be positioned at crossbeam 4 under.
As shown in Figure 4, gas circuit control gear of the present invention is to connect like this: the front end of described two cylinders, 6 inner chambers converges the back by first tracheae 9 and communicates with three position four-way directional control valve 10 one of them outlet, the rear end of two cylinders, 6 inner chambers is converged the back by second tracheae 11 and is communicated with another outlet of three position four-way directional control valve 10, and unidirectional quick release valve 12 is housed on second tracheae 11; Described three position four-way directional control valve 10 one of them import are joined with high-pressure air source 15 by the 3rd tracheae 13, and its another import converges with the 3rd tracheae 13 by the manual air valve of the 4th tracheae 14 series connection 16 backs, also is connected with high-pressure air source 15.Three position four-way directional control valve 10, unidirectional quick release valve 12 and manual air valve 16 are product on sale on the market, and its structure is not given unnecessary details at this.
As shown in Figure 5; the circuit control gear is made up of heavy-current control mechanism, light current control gear and motor circuit; wherein motor circuit comprises motor 17; three input end X ', Y ' of this motor 17, Z ' connect three power lead X, Y, Z respectively; and on three input end X ', Y ' of described motor 17, the Z ' all cross-over connection have the temperature-sensitive coil of overcurrent protector JR, the normally closed interlock of this overcurrent protector JR to be arranged in described heavy-current control mechanism.
Normally closed interlock one end of described overcurrent protector JR is connected with described power lead Z behind emergency stop switch TAQF, the other end and zero-power line N form the 220V AC power, cross-over connection has No. two interlock circuits between this 220V alternating current, wherein the first via is made up of the normally closed switch of rising button QA, down relay JC2, the normally closed switch of upper limit relay J X1 and the coil polyphone of vertical relay JC1, wherein, rising button QA also is parallel with the normal open switch JC1-1 of vertical relay JC1; The coil polyphone of the normally closed switch of secondary route decline button XA, vertical relay JC1, the normally closed switch of lower limit relay J X2 and down relay JC2 is formed, and wherein, decline button XA also is parallel with the normal open switch JC2-1 of down relay JC2; Described 220V AC power also is connected with the 12VDC stabilized voltage supply and is the power supply of light current control gear.
Described 12VDC stabilized voltage supply is described upper and lower near switch 29,30 power supplies, described trigger winding ground connection of going up near the signal output part string upper limit relay J X1 of switch 29 is descended the trigger winding ground connection near the signal output part string lower limit relay J X2 of switch 30.
Described vertical relay JC1, down relay JC2 and last, down near switch 29,30 all are provided with the break-make that on-off switch is controlled described motor 17 and power supply line, string has the normal open switch JC1-3 of vertical relay JC1 and the normally closed switch of last cutoff limit switch 31 on the wherein said X-X ' line, string has the normal open switch JC1-4 of vertical relay JC1 on the described Y-Y ' line, string has the normal open switch JC1-5 of vertical relay JC1 and the normally closed switch of last cutoff limit switch 31 on the described Z-Z ' line, string has the normal open switch JC2-3 of down relay JC2 and the normally closed switch of following cutoff limit switch 32 on the described X-Z ' line, string has the normal open switch JC2-4 of down relay JC2 on the described Y-Y ' line, and string has the normal open switch JC2-5 of down relay JC2 and the normally closed switch of following cutoff limit switch 32 on the described Z-X ' line.
The present invention is performed such drop test: when initial, high-pressure air source 15 is by the 3rd tracheae 13, reversal valve 10, second tracheae 11 and unidirectional quick release valve 12 communicate with the rear end of cylinder 6 inner chambers, high pressure gas promotes the piston in the cylinder, make piston advances forward, piston rod 6a is protruding, crank 7 is converted into rotating counterclockwise of rotating plate shaft 8 with the rectilinear motion of piston rod 6a, make two turnover panels 5 be in horizontality, has spacing between two turnover panels 5, this moment can be with package to be detected 40 (Fig. 1, among Fig. 2 shown in the double dot dash line) be placed between two turnover panels 5, edge by turnover panel 5 supports, start manual air valve 16 then, make reversal valve 10 change the path of high pressure gas, high pressure gas is through reversal valve 10, first tracheae 9 communicates with the front end of cylinder 6 inner chambers, high pressure gas promotes the piston in the cylinder, piston is moved backward, high pressure gas in the cylinder is discharged in the atmosphere by unidirectional quick release valve 12 fast, thereby accelerate the speed that piston moves backward, piston rod 6a is bounced back fast, piston rod 6a drives rotating plate shaft 8 high speed dextrorotations by crank 7 and turn 90 degrees, turnover panel 5 is overturn (as shown in phantom in Figure 1) downwards, package 40 loses support suddenly, drop down with freely falling body, thereby be consistent with the relevant regulations of drop test national standard, reach the purpose of accurate experiment.
The present invention realizes crossbeam 4 liftings like this: control motor 17 is just changeing, the motor sprocket 24 that is installed on motor 17 output shafts drives drive sprocket 19 and drive sprocket 20 rotations by chain, drive sprocket 20 drives driven sprocket 23 rotations by promoting chain 21, promote chain 21 when moving up, drive crossbeam 4 and move upward (as shown in phantom in Figure 2), can satisfy the needs of differing heights drop test.Moving downward of crossbeam 4 is opposite with above process, realizes by 17 counter-rotatings of control motor.
The present invention realizes the spacing of lifting gear and protection like this: after crossbeam 4 runs near switch 29; upper limit relay J X1 triggers; described first via interlock circuit disconnects; No. the second interlock circuit is connected; X ', the Y ', the Z ' that control motor 17 simultaneously are connected with power lead Z, X, Y respectively, guarantee that motor 17 can only reverse after the power supply energising, crossbeam 4 can only be descending.
After crossbeam 4 runs to down near switch 30, lower limit relay J X2 triggers, described No. the second interlock circuit disconnects, first via interlock circuit is connected, X ', the Y ', the Z ' that control motor 17 simultaneously are connected with power lead X, Y, Z respectively, guarantee that motor 17 can only just change after the power supply energising, crossbeam 4 can only be up.
After motor circuit broke down, current of electric was excessive, the circuit heating, and overcurrent protector JR work, the normally closed interlock of overcurrent protector JR disconnects, and heavy-current control mechanism, light current control gear and the whole power down of motor circuit quit work.
When losing efficacy near switch 29,30, crossbeam 4 runs to the limes superiors position of stroke, cutoff limit switch 31 in the collision, its normally closed switch disconnection, motor 17 power down when upper and lower; Crossbeam 4 runs to the smallest limit position of stroke, and collision is cutoff limit switch 32 down, and its normally closed switch disconnects, motor 17 power down.
Claims (6)
1, a kind of packaging piece fall-down test machine, comprise base plate (1), shock plate (2), column tube (3), crossbeam (4), turnover panel (5) and lifting gear, wherein two root post pipes (3) be arranged in parallel, fixedly connected with base plate (1) in its bottom, crossbeam (4) is installed on two column tubes (3), under the effect of lifting gear, crossbeam (4) can move up and down along column tube (3), it is characterized in that:
A, two cylinders (6) are installed on described crossbeam (4), the piston rod (6a) of two cylinders (6) is located along the same line, and stretch out laterally with opposite direction, the outer end of piston rod (6a) is connected with rotating plate shaft (8) by crank (7), this rotating plate shaft (8) is perpendicular to the piston rod (6a) of cylinder (6), and is fixed with turnover panel (5) on the rotating plate shaft (8);
The front end of B, described two cylinders (6) inner chamber communicates with one of them outlet of three position four-way directional control valve (10) by first tracheae (9), the rear end of two cylinders (6) inner chamber communicates by second tracheae (11) another outlet with three position four-way directional control valve (10), unidirectional quick release valve (12) is housed on second tracheae (11), one of them import of described three position four-way directional control valve (10) is joined by the 3rd tracheae (13) and high-pressure air source (15), and its another import is connected by the 4th tracheae (14) and also is connected with high-pressure air source (15) behind the manual air valve (16).
C, described lifting gear comprises motor (17), transmission shaft (18), drive sprocket (19), drive sprocket (20), promote chain (21), driven shaft (22) and driven sprocket (23), wherein transmission shaft (18) by bearing block support on base plate (1), driven shaft (22) is by the upper end of bearing block support in column tube (3), described motor (17) is fixed on the base plate (1), the motor sprocket of installing on its output shaft (24) is connected with drive sprocket (19) by chain, this drive sprocket (19) is sleeved on the axle body of transmission shaft (18), drive sprocket (20) is installed at two ends at transmission shaft (18), this drive sprocket (20) is gone up corresponding driven sprocket (23) connection by promoting chain (21) with driven shaft (22), described lifting chain (21) passes from crossbeam (4), and by wire clamp (25) crossbeam (4) is clamped on the lifting chain (21).
2, a kind of packaging piece fall-down test machine according to claim 1, it is characterized in that: the piston rod (6a) of described cylinder (6) is hinged with the upper end of crank (7), the lower end of crank (7) is sleeved on the rotating plate shaft (8), and is connected with rotating plate shaft (8) by flat key; The outer end of described turnover panel (5) is sleeved on the rotating plate shaft (8), and fixing with rotating plate shaft (8) welding.
3, a kind of packaging piece fall-down test machine according to claim 1 and 2 is characterized in that: all be equipped with in the inner of described two turnover panels (5) and widen bar (5a).
4, a kind of packaging piece fall-down test machine according to claim 1, it is characterized in that: be provided with absolute altitude seat (26) in the outside of described column tube (3), have the absolute altitude chi (27) that indicates height on this absolute altitude seat (26), be provided with absolute altitude pointer (28) on the described crossbeam (4) accordingly.
5, a kind of packaging piece fall-down test machine according to claim 4 is characterized in that: be equipped with near switch (29) in the upper end of described absolute altitude seat (26), be equipped with down near switch (30) lower end of absolute altitude seat (26).
6, a kind of packaging piece fall-down test machine according to claim 5, it is characterized in that: cutoff limit switch (31) is equipped with on the top of a root post pipe (3) therein, upward cutoff limit switch (31) is positioned at the top near switch (29), cutoff limit switch (32) is installed down on the described base plate (1), this time cutoff limit switch (32) be positioned at crossbeam (4) under.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610095326 CN1975368A (en) | 2006-12-22 | 2006-12-22 | Packaging piece fall-down test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610095326 CN1975368A (en) | 2006-12-22 | 2006-12-22 | Packaging piece fall-down test machine |
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| Publication Number | Publication Date |
|---|---|
| CN1975368A true CN1975368A (en) | 2007-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610095326 Pending CN1975368A (en) | 2006-12-22 | 2006-12-22 | Packaging piece fall-down test machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401729A (en) * | 2011-08-31 | 2012-04-04 | 中国印钞造币总公司 | Multifunctional box falling test machine |
| CN103257028A (en) * | 2013-05-28 | 2013-08-21 | 上海大学 | Testing machine for detecting child tricycle falling performance |
| CN103674739A (en) * | 2012-09-24 | 2014-03-26 | 中国石油化工股份有限公司 | Mud shale brittle nature experimental device and experimental analysis method thereof |
| CN104792620A (en) * | 2015-04-16 | 2015-07-22 | 辽宁工程技术大学 | Mine conveyor belt comprehensive performance parameter experiment platform |
| CN108168825A (en) * | 2017-12-27 | 2018-06-15 | 中国人民解放军总后勤部油料研究所 | A kind of breather valve fall-down test device |
-
2006
- 2006-12-22 CN CN 200610095326 patent/CN1975368A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401729A (en) * | 2011-08-31 | 2012-04-04 | 中国印钞造币总公司 | Multifunctional box falling test machine |
| CN103674739A (en) * | 2012-09-24 | 2014-03-26 | 中国石油化工股份有限公司 | Mud shale brittle nature experimental device and experimental analysis method thereof |
| CN103674739B (en) * | 2012-09-24 | 2016-01-20 | 中国石油化工股份有限公司 | A kind of experimental provision of mud shale embrittlement character and experiment analytical method thereof |
| CN103257028A (en) * | 2013-05-28 | 2013-08-21 | 上海大学 | Testing machine for detecting child tricycle falling performance |
| CN104792620A (en) * | 2015-04-16 | 2015-07-22 | 辽宁工程技术大学 | Mine conveyor belt comprehensive performance parameter experiment platform |
| CN108168825A (en) * | 2017-12-27 | 2018-06-15 | 中国人民解放军总后勤部油料研究所 | A kind of breather valve fall-down test device |
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