CN206920108U - Apparatus for impact testing - Google Patents
Apparatus for impact testing Download PDFInfo
- Publication number
- CN206920108U CN206920108U CN201720328962.9U CN201720328962U CN206920108U CN 206920108 U CN206920108 U CN 206920108U CN 201720328962 U CN201720328962 U CN 201720328962U CN 206920108 U CN206920108 U CN 206920108U
- Authority
- CN
- China
- Prior art keywords
- impact
- release
- impact head
- head
- height
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Apparatus for impact testing is the utility model is related to, belongs to a kind of experiment test equipment, can be applied to adventure playground's pad impact test.Including device framework, impact head and release system, the regulation of impact grease head highness and measuring system.The system have it is portable, efficiently and accurately the characteristics of.
Description
Technical field
Apparatus for impact testing is the utility model is related to, belongs to a kind of test equipment, can be applied to adventure playground's pad impact
Experiment.
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 system is electromagnetic releasing system, can
There can be certain negative influence to release, because electromagnet release system 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 apparatus for impact testing of measurement.
A kind of apparatus for impact testing, it is characterised in that:Including device framework, impact head and release system, impact grease head highness
Regulation and measuring system；Above-mentioned impact head and release system are installed on device framework, and it is made up of impact head and release device；Its
Middle impact head generally spheroid, is made up of episphere and lower semisphere, and episphere top has stopper slot, is provided with stopper slot outstanding
Hanging scroll, the interior installation wireless triaxial acceleration transducer of spheroid；Wherein release device includes housing, and outer arch is provided with suspension
Point, outer inframe is by bearing pin mounting hook, and outer inframe is also equipped with motor, and motor output shaft, which is provided with, can stir dialling for hook
Bar；The housing low profile of above-mentioned release device is mutually matched with the spacing groove shape on impact head top, and outer frame bottom is just stretched
Entering into stopper slot to rotate against, and the hook portion hook of the hook of release device is in the suspended axle of impact head;Above-mentioned impact head height
Degree regulation and measuring system are installed on device framework, and it is made up of arrangement for adjusting height and height measuring device;Wherein height is surveyed
Amount device is located at device framework top, and it includes fixed pulley and the encoder for identifying pulley rotation situation;Wherein height is adjusted
Regulating device is located at device framework middle and lower part, and it includes ratchet, and the hand crank being connected with ratchet, in addition to a rope, should
Rope one end is connected with ratchet, the other end bypass after the fixed pulley in height measuring device with outside release device arch it is outstanding
Hanging point is connected.
Described apparatus for impact testing, it is characterised in that:Including system power supply, in addition to control system, control system bag
Include the impact release control module being connected with motor in release device, the shock height being connected with encoder in height measuring device
Display module, in addition to the acceleration signal collection mould being wirelessly connected with Wireless Acceleration Sensor in impact head
Block, in addition to computation analysis module.
Barycenter after episphere and the lower semisphere combination of above-mentioned impact head is located at the centre of sphere, wireless triaxial acceleration transducer
Barycenter overlaps with the centre of sphere.
The impact test method of the apparatus for impact testing, it is characterised in that process procedure below:Driven by hand crank
Rope is to adjust the height of impact head；Rope slides with fixed pulley Complete Synchronization without relative；Encoder record fixed pulley turns over
The number of turns, the number of turns that pulley is turned over are scaled rope displacement, and then are scaled the height of impact head lifting, and this is highly punching
Tap the head apart from the actual relative altitude of measured point；Motor drives driving lever, and hook is dialled from release impact at the suspension of impact head
Head；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 system of the driving lever release shackle of machine driving, electromagnetic releasing system 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 apparatus for impact testing 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 system, 5.
Router, 6.PC, 7. controllers, 8. hitch points, 9. housings, 10. motors, 11. driving levers, 12. hooks, 13. wireless three axles accelerate
Sensor installation place is spent, 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) 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 (3)
- A kind of 1. apparatus for impact testing, it is characterised in that:Including device framework (2), impact head and release system (4), the regulation of impact grease head highness and measuring system；Above-mentioned impact head and release system are installed on device framework (2), and it is made up of impact head and release device；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；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;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 elevation carrection Device forms;Wherein height measuring device is located at device framework (2) top, and it includes fixed pulley（19）With for identify fixed pulley rotate The encoder (18) of situation;Wherein arrangement for adjusting height is located at device framework middle and lower part, and it includes ratchet (20), and the hand crank being connected with ratchet (21), in addition to a rope, the rope one end are connected with ratchet, after the other end bypasses the fixed pulley in height measuring device It is connected with the hitch point of arch outside release device.
- 2. apparatus for impact testing according to claim 1, it is characterised in that:Including system power supply, in addition to control system, Impact release control module that control system includes being connected with motor in release device, it is connected with encoder in height measuring device Shock height display module, in addition to be wirelessly connected with Wireless Acceleration Sensor in impact head acceleration letter Number acquisition module, in addition to computation analysis module.
- 3. apparatus for impact testing according to claim 1, it is characterised in that:The episphere and lower semisphere group of above-mentioned impact head Barycenter after conjunction is located at the centre of sphere, and the barycenter of wireless triaxial acceleration transducer overlaps with the centre of sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328962.9U CN206920108U (en) | 2017-03-31 | 2017-03-31 | Apparatus for impact testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328962.9U CN206920108U (en) | 2017-03-31 | 2017-03-31 | Apparatus for impact testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206920108U true CN206920108U (en) | 2018-01-23 |
Family
ID=61309900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720328962.9U Expired - Fee Related CN206920108U (en) | 2017-03-31 | 2017-03-31 | Apparatus for impact testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206920108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969899A (en) * | 2017-03-31 | 2017-07-21 | 江苏省检验检疫科学技术研究院 | Apparatus for impact testing and method |
-
2017
- 2017-03-31 CN CN201720328962.9U patent/CN206920108U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969899A (en) * | 2017-03-31 | 2017-07-21 | 江苏省检验检疫科学技术研究院 | Apparatus for impact testing and method |
| CN106969899B (en) * | 2017-03-31 | 2023-04-28 | 江苏省检验检疫科学技术研究院 | Impact testing 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 |
Granted publication date: 20180123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |