CN206906162U - Modified impacts damping fall-down test percussion mechanism - Google Patents
Modified impacts damping fall-down test percussion mechanism Download PDFInfo
- Publication number
- CN206906162U CN206906162U CN201720328950.6U CN201720328950U CN206906162U CN 206906162 U CN206906162 U CN 206906162U CN 201720328950 U CN201720328950 U CN 201720328950U CN 206906162 U CN206906162 U CN 206906162U
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- China
- Prior art keywords
- hook
- impact head
- release device
- impact
- rectangular channel
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Abstract
A kind of modified impact damping fall-down test percussion mechanism is the utility model is related to, belongs to impact experiment testing field.Device includes impact head and release device (4)；Wherein impact head generally spheroid, there is rectangular channel (15), suspended axle (14) is installed in rectangular channel;For the wherein outer inframe of release device by bearing pin mounting hook (12), outer inframe is also equipped with motor (10), and motor output shaft is provided with the driving lever (11) that can stir hook；The housing low profile and the rectangular reservoir shape on impact head top of above-mentioned release device are mutually matched, outer frame bottom just extend into rectangular channel and can not rotated against, and the hook portion hook of the hook (12) of release device is in the suspended axle (14) of impact head.The utility model is simple in construction, measurement is accurate.
Description
Technical field
Modified impact damping fall-down test percussion mechanism is the utility model is related to, belongs to a kind of test equipment, can answer
Impact test is padded for adventure playground.
Background technology
Padded for adventure playground and require to carry out impact test.Deltec companies produce a kind of HIC impact devices, but still
It is to be modified.（1）Impulse form is freely falling body mode, but impact head is dome-type impact head, with standard《EN 1177-2008
Impact the measure of damping recreation ground paving damage dropping highs》It is it is required that inconsistent（2）Release device is electromagnetic release device, can
There can be certain negative influence to release, because electromagnet release device there may be Magnetic hysteresis, or because release part
Magnetization phenomenon be present, release initial velocity may be caused to be weakened, cause impact velocity relatively low, it is inclined to ultimately result in damage dropping high
It is high.（3）Using there is linear acceleration transducer, signal wire may cause impact head in test process to rotate.Because impact head is non-
Ball-type, therefore its sensor can not realize that the centre of sphere is installed, and in impact process acceleration transducer can not be ensured through overshoot
Hit in horizontal plane vertical line a little, test data correctness can not be ensured.Rotation caused by impact head rotation in test process adds
Speed may influence test result, increase the uncertainty of measurement.（4）Equipment is without height measurement function, by tester
Shock height measurement is carried out using tape measure, precision is relatively low, can not ensure to measure the accuracy of height, influence final testing result
Correctness, while also introduce uncertainty for test result.
Utility model content
The purpose of this utility model is to provide a kind of simple in construction, accurate impact damping fall-down test impact of measurement
Device.
A kind of modified impacts damping fall-down test percussion mechanism, it is characterised in that:Including impact head and release device；
Wherein impact head generally spheroid, is made up of episphere and lower semisphere, and episphere top has rectangular channel, is provided with rectangular channel
Suspended axle, the interior installation wireless triaxial acceleration transducer of spheroid；Barycenter after episphere and lower semisphere combination is located at the centre of sphere, wirelessly
The barycenter of 3-axis acceleration sensor overlaps with the centre of sphere;Wherein release device includes housing, and outer arch is provided with hitch point, outside
For inframe by bearing pin mounting hook, outer inframe is also equipped with motor, and motor output shaft is provided with the driving lever that can stir hook；It is above-mentioned
The housing low profile and the rectangular reservoir shape on impact head top of release device are mutually matched, and outer frame bottom just extend into rectangle
It can not be rotated against in groove, the hook portion hook of the hook of release device is in the suspended axle of impact head.
The method of the modified impact damping fall-down test percussion mechanism, it is characterised in that process procedure below:Release
The hook portion hook of the hook of device is put in the suspended axle of impact head;When motor driving driving lever, hook is dialled at the suspension of impact head
From impact head is released；The acceleration information of impact head is measured by wireless triaxial acceleration transducer.
The utility model uses homogeneous spherical impact head first（Impact head center of gravity is located at the centre of sphere）, stopper slot and it is wireless plus
Velocity sensor avoids the test error caused by the rotation of impact head in impact process；Secondly the utility model additionally uses electricity
The release device of the driving lever release shackle of machine driving, electromagnetic release device is avoided because magnetic is sluggish or residual is to test result
Influence；Last the utility model additionally uses the height adjusting system of encoder instruction, ensures the accurate of shock height measurement
Property.
Brief description of the drawings
Fig. 1 is impact test apparatus overall schematic；
Fig. 2 is release device schematic diagram；
Fig. 3 is impact head schematic diagram；
Fig. 4 is height measuring device schematic diagram；
Fig. 5 is hand ratchet schematic diagram；
Label title in figure：1. hand ratchet, 2. device frameworks, 3. altimeter coders, 4. impact heads and release device,
5. router, 6.PC, 7. controllers, 8. hitch points, 9. housings, 10. motors, 11. driving levers, 12. hooks, 13. wireless three axles add
Velocity sensor installation place, 14. suspended axles, 15. rectangular channels, 16. epispheres, 17. lower semispheres, 18. encoders, 19. is fixed sliding
Wheel, 20. ratchets, 21. hand cranks.
Embodiment
A kind of impact test apparatus as Figure 1-5, including device framework 2, impact head and release device 4, impact head height
Degree regulation and measuring system；Above-mentioned impact head and release device are installed on device framework 2, and it is by impact head and release device group
Into；Wherein impact head generally spheroid, is made up of episphere 16 and lower semisphere 17, and episphere top has rectangular channel 15, rectangle
Suspended axle 14 is installed in groove, wireless triaxial acceleration transducer is installed in spheroid；Wherein release device includes housing 9, housing
Top is provided with hitch point 8, and for outer inframe by bearing pin mounting hook 12, outer inframe is also equipped with motor 10, motor output shaft peace
Equipped with the driving lever 11 that can stir hook；The housing low profile and the rectangular reservoir shape on impact head top of above-mentioned release device are mutual
Matching, outer frame bottom just extend into rectangular channel and can not rotated against, and the hook portion hook of the hook 12 of release device is in impact head
Suspended axle 14;Above-mentioned impact grease head highness regulation and measuring system are installed on device framework 2, and it is by arrangement for adjusting height and height
Measurement apparatus forms;Wherein height measuring device is located at the top of device framework 2, and it includes fixed pulley 19）Determine cunning with for identifying
Take turns the encoder 18 of rotation situation;Wherein arrangement for adjusting height is located at device framework middle and lower part, and it includes ratchet 20, and and spine
The connected hand crank 21 of wheel, in addition to a rope, the rope one end are connected with ratchet, and the other end bypasses height measuring device
In fixed pulley after be connected with the hitch point of arch outside release device.Impact test apparatus, in addition to system power supply, in addition to
Control system, control system is including in the impact release control module being connected with motor in release device and height measuring device
The connected shock height display module of encoder, in addition to be wirelessly connected with Wireless Acceleration Sensor in impact head
Acceleration signal acquisition module, in addition to computation analysis module.
The impact test method of the impact test apparatus, process procedure below:Rope is driven to adjust by hand crank 21
Save the height of impact head；Rope slides with fixed pulley Complete Synchronization without relative；Encoder 18 records the number of turns that fixed pulley 19 turns over,
The number of turns that fixed pulley is turned over is scaled rope displacement, and then is scaled the height of impact head lifting, and this is highly impact
Actual relative altitude of the head apart from measured point；Motor 10 drives driving lever 11, and hook 12 is dialled from release at the suspension of impact head
Impact head；The acceleration information of impact head is measured by wireless triaxial acceleration transducer.
A) impact head and its delivery mode
Using spherical impact head mould, head mould carries the wireless triaxial acceleration transducer for meeting standard requirement, employs band
There is the hook release device of certain guide function.Dependency structure is as shown in Figures 2 and 3.Wherein acceleration transducer barycenter is bag
Network cuboid geometric center, impact head ensure that barycenter is located at the centre of sphere in manufacturing process, and acceleration transducer installation ensures its matter
The heart overlaps with the centre of sphere.As shown in Fig. 2 relieving mechanism is rectangular body case.And impact head is carried with the rectangular of relieving mechanism matching
Body is slotted and hanger bar.Which ensure that head mould will not produce the rotation that may influence test result in impact process.
B) shock height regulation and measurement
Using steel wire hang mode, shock height regulation is carried out using hand ratchet as shown in Figure 4, Figure 5.Rope is with determining
Pulley Complete Synchronization slides without relative；The number of turns that encoder record fixed pulley turns over, the number of turns that pulley is turned over are scaled rope
Displacement, and then the height of impact head lifting is scaled, this is highly actual relative altitude of the impact head apart from measured point.
C) device framework
Equipment uses aluminium alloy foldable tripod structure, ensure that the power of test and portability of equipment.Such as Fig. 1 institutes
Show.
d）Device data acquisition and equipment power supply
The data acquisition modes of Wireless Acceleration Sensor+wireless router+notebook computer, data communication can be used
Using wireless WiFi, the reliability of data acquisition ensure that.
The acceleration transducer that equipment uses itself carries power supply, can carry lithium battery group with continuous firing, control cabinet, can
Think wireless router and release device and the power supply of shock height encoder, data processing uses notebook computer, entirely set
Without external power supply in standby test process, it is ensured that more than equipment continuous firing 3h, ensure the portability of equipment and may move
Property.
Claims (1)
1. a kind of modified impacts damping fall-down test percussion mechanism, it is characterised in that:
Including impact head and release device (4)；
Wherein impact head generally spheroid, it is made up of episphere (16) and lower semisphere (17), episphere top has rectangular channel
(15) suspended axle (14), is installed in rectangular channel, wireless triaxial acceleration transducer is installed in spheroid；Episphere and lower semisphere group
Barycenter after conjunction is located at the centre of sphere, and the barycenter of wireless triaxial acceleration transducer overlaps with the centre of sphere;
Wherein release device includes housing (9), and outer arch is provided with hitch point (8), and outer inframe passes through bearing pin mounting hook
(12), outer inframe is also equipped with motor (10), and motor output shaft is provided with the driving lever (11) that can stir hook；
The housing low profile and the rectangular reservoir shape on impact head top of above-mentioned release device are mutually matched, and outer frame bottom is just stretched
Entering into rectangular channel to rotate against, and the hook portion hook of the hook (12) of release device is in the suspended axle (14) of impact head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328950.6U CN206906162U (en) | 2017-03-31 | 2017-03-31 | Modified impacts damping fall-down test percussion mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328950.6U CN206906162U (en) | 2017-03-31 | 2017-03-31 | Modified impacts damping fall-down test percussion mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206906162U true CN206906162U (en) | 2018-01-19 |
Family
ID=61295241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720328950.6U Expired - Fee Related CN206906162U (en) | 2017-03-31 | 2017-03-31 | Modified impacts damping fall-down test percussion mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206906162U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918516A (en) * | 2017-03-31 | 2017-07-04 | 中华人民共和国昆山出入境检验检疫局 | Modified impacts damping fall-down test percussion mechanism and method |
-
2017
- 2017-03-31 CN CN201720328950.6U patent/CN206906162U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918516A (en) * | 2017-03-31 | 2017-07-04 | 中华人民共和国昆山出入境检验检疫局 | Modified impacts damping fall-down test percussion mechanism and method |
| CN106918516B (en) * | 2017-03-31 | 2023-04-25 | 中华人民共和国昆山海关 | Improved impact shock absorption drop test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 |