CN201307079Y - Dynamic strength tester and fixture - Google Patents
Dynamic strength tester and fixture Download PDFInfo
- Publication number
- CN201307079Y CN201307079Y CNU2008202140016U CN200820214001U CN201307079Y CN 201307079 Y CN201307079 Y CN 201307079Y CN U2008202140016 U CNU2008202140016 U CN U2008202140016U CN 200820214001 U CN200820214001 U CN 200820214001U CN 201307079 Y CN201307079 Y CN 201307079Y
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- Prior art keywords
- suspension ring
- resistance
- motor
- vibration tester
- toy
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Abstract
Disclosed is a dynamic strength tester which mainly comprises a motor control device and a rigid-framed structure. A special fixture can be used to ensure that a special toy can do rectilinear motion on a rail stably. A motor and a reduction box are fixed on the same flat plate, the bottom part of the flat plate adopts a rack structure, the lower part of the rack is provided with a motor and a gear, and the gear is meshed with the rack. While a guy rope rotates around a rotating shaft of the reduction box, the motor at the lower part drives the gear rack to move, while the rotating shaft of the reduction box is wound with a wire, the flat plate connected with the reduction box and the motor moves toward the direction vertical to the linear velocity to wind the wire spirally, so as to ensure that the toy can accelerate smoothly and reach the required test speed. The motor control adopts a digital control mode to improve the testing efficiency, facilitate the operation and make results accurate.
Description
Technical field
The utility model relates to resistance to vibration tester and anchor clamps thereof, mainly be to have wheel to ride the requirement of the resistance to vibration test of toy, can finish GB14749-2006 babywalker dynamic stability test request and new system national standard simultaneously: scooter, turn round the test request of resistance to vibration in the toy safety standard such as button car at EN71-1, national toy safety standard GB6675-2003, international toy safety standard ISO 8124 in the European toy standard.
Background technology
Give in toy uses and to apply suitable load as seat or the surface of standing, and it is fixing to load with belt.For preventing that load from causing unsuitable damage to toy, must separate with mat and load in seat surface, if but load obviously can not damage toy, and also can be without mat.Quicken reposefully, drive toy and vertically clash into the high non-resilient step of 50mm ± 2mm three times with the stabilized speed of 2m/s ± 0.2m/s.Load is sling after the bump to prevent that load from falling down toy is caused incoherent damage at once.
If toy is predetermined for using simultaneously more than children, then test each seat or standing place simultaneously.When roller skates is tested, be with two roller skates, and with suitable bridge their are connected with support load.Use a suitable bridging during test and connect two ice skate, load is fixed on this bridge.
The utility model content
A kind of resistance to vibration tester, it is made up of motor control assembly and rigid frame structure; Wherein rigid frame structure comprises non-resilient step, interior guide rail, outer guide, and interior guide rail has interior auxiliary clamp, and outer guide has outer auxiliary clamp.
Described motor control assembly comprises traction electric machine, translation motor, gear, travelling belt, reducer casing, touch screen control panel, power switch, flexible strand, pulley and tooth bar composition; Again around to the rotating shaft of reducer casing, the traction electric machine rotating shaft connects reducer casing by travelling belt to flexible strand through pulley; Traction electric machine and reducer casing are fixed on the same flat board, and the bottom is a gear ﹠ rack structure, and a translation motor and gear are arranged at the tooth bar bottom, and wheel and rack is meshing with each other.When the reducer casing rotating shaft was rotated, the motion of the motor driven gear tooth bar of bottom connected the past direction motion perpendicular to the stay cord linear velocity of flat board of reducer casing and motor at stay cord.Make stay cord curl up twist.She Ji purpose is in order to guarantee that thereby the stay cord linear velocity evenly makes test move reposefully at the uniform velocity down like this.On the touch screen control panel, test speed can be set, draw the torsion variation diagram of reducer casing rotating shaft automatically, the state and the triggered time point of record sensor.Make test operation easy, data recording is clear, and the result is accurate.
Described pulley is connected with heightens runner.
Described traction electric machine and translation motor are the rotating servomotor.Provide stable rotating speed by servomotor, guarantee that toy can steadily quicken and reach desired test speed.
Guide rail and outer guide two ends are fixed in the guide groove of perpendicular direction by the set bolt activity in described.
Described rigid frame structure also comprises suspension ring, suspension ring guide rail, suspension ring buffer spring, steel wire and load, and suspension ring are positioned at the suspension ring guide rail, and the suspension ring buffer spring is positioned at suspension ring guide rail end, and steel wire connects suspension ring and load.Rigid frame structure design in the tester makes toy do rectilinear motion perpendicular to the non-resilient step surface of 50mm.The suspension ring on rigid frame top, suspension ring are connecting with steel wire loads, can be after toy is clashed on request because of load fall down to cause incoherent damage.
Two groups of timers are equipped with in described rigid frame structure fixed position, and timer is connected with the touch screen control panel is linear.Utilize the sensor of Time Triggered, can calculate test speed.
Described non-resilient step near-end is equipped with the control sensor, and the control sensor is connected with the traction electric machine switch.
A kind of anchor clamps of resistance to vibration tester, it is made up of vertical wheel, horizontal wheels, base plate, clamping plate, set bolt, hold-down nut, vertical wheel carrier, and vertical wheel becomes the right and left to be symmetrically distributed, and the tangent line of vertical wheel bottom becomes an angle of 90 degrees with the tangent line of horizontal wheels upper end.General scooter directly gets final product with guide rail auxiliary clamp clamping and force application movement, and for special toy such as roller skates etc., available these ad hoc anchor clamps guarantee that it can do rectilinear motion along track stably.
Description of drawings
Fig. 1 is the utility model embodiment synoptic diagram;
Fig. 2 is the utility model embodiment rigid frame structure vertical view;
Fig. 3 is the utility model embodiment anchor clamps exploded views;
Fig. 4 is the utility model embodiment Electric Machine Control part synoptic diagram
Embodiment
Describe the utility model by the following examples, should be noted that, cited embodiment should not understand the restriction to utility model.
Toy resistance to vibration tester comprises three parts: Electric Machine Control, rigid frame structure.Wherein Electric Machine Control and rigid frame structure are the core of this instrument.Basic test method as shown in Figure 1.
Electric Machine Control part by traction electric machine 9, translation motor 45, gear 44, travelling belt 1, reducer casing 2, touch screen control panel 11, power switch 13, scram button 12, electric wire 4, timer 6, control sensor 5, heighten runner 14, pulley 15 and tooth bar 3 and form.The flexible strand 8 process pulleys 15 that spur tested thing 18 are again around to the rotating shaft 43 of reducer casing 2 (as Fig. 1).Pulley 15 can be heightened runner handle 39 by rotation according to the differing heights of toy and regulate height (as Fig. 4).During test, the point of application of tested thing 18 and the point of contact of pulley should be adjusted to horizontality (as Fig. 1).Machine shaft 40 connects reducer casing 2 by travelling belt 1, thereby makes traction electric machine 9 effective reductions of speed of fast turn-around and the speed when testing according to the selection adjustment of different capacity.Traction electric machine 9 and slowing down 2 casees is fixed on the same flat board, and the bottom is a gear ﹠ rack structure, and a translation motor 45 and gear 44 are arranged at tooth bar 3 bottoms, gear 44 and tooth bar 3 be meshing with each other (as Fig. 1).In reducer casing rotating shaft 43 coilings, the flat board that connects reducer casing 2 and traction electric machine 9 makes flexible strand 8 curl up (as Fig. 4) twist toward the direction motion (as Fig. 4) perpendicular to linear velocity.Design can make the linear velocity of coiling evenly equate like this, thereby makes tested thing 18 be guaranteed to have speed stably.Traction electric machine 9 is a servomotor, can realize the rotating function, by tightening up flexible strand 8 pulling toy bump step surfaces, makes toy reset by loosening flexible strand 8 in the time of counter-rotating when just changeing, and the resistance to vibration test of toy can be carried out repeatedly.
Touch screen control panel 11 can accurately be provided with test rotating speed, factored moment size, draws moment variations figure, shows sensor 5-6 state, writing time parameter.Two electric wire interface 41-42 are arranged on the traction electric machine 9, and each interface is told 3 electric wires 4 respectively, and the corresponding sensor 5-6 on both sides that connects is (as Fig. 1, Fig. 4).When certain sensor, have corresponding icon display at tester on the touch screen control panel 11, and note through the instant moment size of out-of-date time and reducer casing rotating shaft 43.If situation about meeting accident in test process can stop test (as Fig. 1) immediately by scram button 12.
Rigid frame structure comprises suspension ring 19, suspension ring guide rail 20, suspension ring buffer spring 16, set bolt 23, auxiliary clamp 29, non-resilient step 24, sensor rack 25 that 50mm ± 2mm is high.The position of auxiliary clamp 29 is regulated by set bolt 23.Unclamp set bolt 23, can regulate in auxiliary clamp 29 two rails relative to or reverse direction move.Like this, just can the toy front-wheel be stuck between the two rails exactly, guarantee that tested thing 18 can do rectilinear motion reposefully on perpendicular to the direction of non-resilient step 24 according to the distance between the auxiliary clamp 29 in the width adjusting of toy front-wheel.Can regulate distance between the outer auxiliary clamp 28 according to the size of tested toy, unclamp the distance that set bolt 23 and foot bolt 26 are regulated between outer auxiliary clamp 28 two rails, guarantee that tested toy trailing wheel moves in the track of fixing.6 sensors are placed in the both sides of sensing rack 25 respectively.Control sensor 5 is placed in the place (as Fig. 2) near elasticity step surface 24, when tested thing 18 processes are controlled the sensor of sensors 5, motor can stop operating immediately and make moment become 0, allows tested thing freely clash into non-resilient step 24 down with the state of no external force.Two pairs of timers 6 are symmetrically distributed and the segment distance of being separated by, and will be recorded in the time of tested thing 18 through two pairs of timers 6.We can be according to the time with apart from the size of calculating speed with the formula of v=s/t.Use non-tester pretest before test, with the linear velocity of calibration traction electric machine 9, the speed that usefulness sets during the speed to 2m/s to be adjusted is tested.
There is a suspension ring guide rail 20 centre on rigid frame top, a movable hoisting ring 19 is arranged on the suspension ring guide rail 20 and fixed a spring 16.Spring 16 is located (as Fig. 1) directly over non-resilient step 24.Pass suspension ring 19 with steel wire 17 during test and be connected load 21 on the tester, the length of steel wire 17 can not be because of lacking very much to loading 21 generation pulling force when static, the pressure of 21 pairs of tested things 18 of influence load, can not be oversize so that toy clash into non-resilient step 24 back suspension ring 19 and also do not clash into spring 16.Vertical just during the optimum length of steel wire 17 position that is suspension ring 19 directly over load 21.Suspension ring 19 will moving with tested thing 18 in the test, suspension ring 19 hit to stop on spring 16 and hold load 21 and it can not be fallen down and cause incoherent infringement when tested thing 18 bump step surfaces 24, have also prevented to load 21 to fly out and cause tester's personal injury.Utilize spring 16 to stop that the motion of suspension ring 19 can effectively slow down the rigid shock of 19 pairs of instruments of suspension ring, 21 can reach effective cushioning effect, reduced by 21 the harm of speed of loading rapidly to avoid producing owing to inertia effect to loading.
Peripheral hardware anchor clamps in the tester are to be used for clamping clamping that some auxiliary clamps are difficult for or toy that can not clamping.It forms (as Fig. 3) by 6 runners, 31,2 hold-down nuts of 35,2 set bolts of 34,1 clamping plate of 1 base plate 32, two wheel carriers 33.6 runners become the right and left to be symmetrically distributed, and place with horizontal direction in the bottom for 4, and 2 are fixed on 2 wheel carriers 33 in both sides respectively and place with vertical direction.The tangent line of vertical wheel 37 bottoms becomes an angle of 90 degrees with the tangent line of horizontal wheels 38 upper ends, touches upper surface and inside surface on the rail respectively.During use, place with the toy base plate between the base plate 34 and clamping plate 35 of anchor clamps.Fix behind the position with bolt 31 and nut 32 anchor clamps together with toy are placed on the auxiliary clamp, allow auxiliary clamp clamp the anchor clamps of peripheral hardware, carry out normal test procedure (as Fig. 1) then.
It is as follows to adopt above-mentioned resistance to vibration tester to carry out the method for toy resistance to vibration test:
According to the toy characteristics tested toy with clamp and be placed on the position of the orbit that sensor 6 has (being auxiliary clamp), add the load 21 that conforms to age group in the seat surface or the surface of standing, if 21 pairs of toys 18 of load can cause unsuitable damage, on test position, must separate with mat and load 21.Load 21 usefulness steel wires 17 are connected with suspension ring 19, and tested thing 18 front ends are fastened with flexible strand 8, walk around pulley 15 on the control desk again in the rotating shaft 43 to reducer casing 2.Regulating the pulley height makes the point of contact of pulley upper end consistent with the point of fixity height that is toy.Open the power supply 13 of control panel, (SET) test speed is set, select motor just to change (CW), starting (START) relief toy freely impinges upon on the high non-resilient step 24 of 50mm ± 2mm, allow traction electric machine 9 counter-rotating (CCW) unwrapping wire then, toy is put back to start position and carried out twice test again, carry out three tests altogether.(use the non-tester of anchor clamps clamping before testing earlier, examination gives a forecast behind setting speed on the touch screen control panel 11, by the time of distance between the Measuring Time sensor 6 and tested thing 18 process sensors 6, calculate the speed of actual speed to be provided with in the calibration touch screen control panel 11, write down the speed that sets during the speed to actual speed 2m/s to be adjusted, carry out proper testing again with this speed of setting.Can check the torque value that write down on the touch screen control panel 11 and the torsion variation diagram of drafting after the end of test (EOT), further have or not operation improperly in the analytical test process and the result is produced unnecessary error.
This shows that this resistance to vibration tester can reach EN71-1 in the European toy standard, national toy safety standard GB6675-2003 fully, international toy safety standard ISO 8124 has wheel to ride the requirement of the resistance to vibration test of toy, can regulate test speed easily by the numerical control operating system, directly draw the state of each parameter of test process, improved the efficient of test and result's accuracy greatly.
Obviously; foregoing is just in order to illustrate characteristics of the present utility model; and be not to restriction of the present utility model, the variation that the those of ordinary skill in relevant technologies field is made in the corresponding techniques field according to the utility model should belong to protection category of the present utility model.
Claims (9)
1, a kind of resistance to vibration tester, it is characterized in that: it is made up of motor control assembly and rigid frame structure; Wherein rigid frame structure comprises non-resilient step, interior guide rail, outer guide, and interior guide rail has interior auxiliary clamp, and outer guide has outer auxiliary clamp.
2, a kind of resistance to vibration tester according to claim 1, its feature also is: described motor control assembly comprises traction electric machine, translation motor, gear, travelling belt, reducer casing, touch screen control panel, power switch, flexible strand, pulley and tooth bar composition; Again around to the rotating shaft of reducer casing, the traction electric machine rotating shaft connects reducer casing by travelling belt to flexible strand through pulley; Traction electric machine and reducer casing are fixed on the same flat board, and the bottom is a gear ﹠ rack structure, and a translation motor and gear are arranged at the tooth bar bottom, and wheel and rack is meshing with each other.
3, a kind of resistance to vibration tester according to claim 2, its feature also is: described pulley is connected with heightens runner.
4, a kind of resistance to vibration tester according to claim 2, its feature also is: described traction electric machine and translation motor are the rotating servomotor.
5, a kind of resistance to vibration tester according to claim 1, its feature also is: guide rail and outer guide two ends are fixed in the guide groove of perpendicular direction by the set bolt activity in described.
6, a kind of resistance to vibration tester according to claim 1, its feature also is: described rigid frame structure also comprises suspension ring, suspension ring guide rail, suspension ring buffer spring, steel wire and load, suspension ring are positioned at the suspension ring guide rail, the suspension ring buffer spring is positioned at suspension ring guide rail end, and steel wire connects suspension ring and load.
7, a kind of resistance to vibration tester according to claim 1, its feature also is: two groups of timers are equipped with in described rigid frame structure fixed position, and timer is connected with the touch screen control panel is linear.
8, a kind of resistance to vibration tester according to claim 1, its feature also is: described non-resilient step near-end is equipped with the control sensor, and the control sensor is connected with the traction electric machine switch.
9, a kind of anchor clamps of resistance to vibration tester, it is characterized in that: it is made up of vertical wheel, horizontal wheels, base plate, clamping plate, set bolt, hold-down nut, vertical wheel carrier, vertical wheel becomes the right and left to be symmetrically distributed, and the tangent line of vertical wheel bottom becomes an angle of 90 degrees with the tangent line of horizontal wheels upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202140016U CN201307079Y (en) | 2008-11-28 | 2008-11-28 | Dynamic strength tester and fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202140016U CN201307079Y (en) | 2008-11-28 | 2008-11-28 | Dynamic strength tester and fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307079Y true CN201307079Y (en) | 2009-09-09 |
Family
ID=41099546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202140016U Expired - Fee Related CN201307079Y (en) | 2008-11-28 | 2008-11-28 | Dynamic strength tester and fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201307079Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494908A (en) * | 2011-11-18 | 2012-06-13 | 南京航空航天大学 | Servo-motor aerodynamic load analog device of aircraft landing gear folding and unfolding |
| CN102539186A (en) * | 2011-12-28 | 2012-07-04 | 常州市产品质量监督检验所 | Structural strength tester for fixed bookshelves |
-
2008
- 2008-11-28 CN CNU2008202140016U patent/CN201307079Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494908A (en) * | 2011-11-18 | 2012-06-13 | 南京航空航天大学 | Servo-motor aerodynamic load analog device of aircraft landing gear folding and unfolding |
| CN102539186A (en) * | 2011-12-28 | 2012-07-04 | 常州市产品质量监督检验所 | Structural strength tester for fixed bookshelves |
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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: 20090909 Termination date: 20101128 |