CN107064560A - Accelerometer with high g values bump test device - Google Patents
Accelerometer with high g values bump test device Download PDFInfo
- Publication number
- CN107064560A CN107064560A CN201710123218.XA CN201710123218A CN107064560A CN 107064560 A CN107064560 A CN 107064560A CN 201710123218 A CN201710123218 A CN 201710123218A CN 107064560 A CN107064560 A CN 107064560A
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- rotating disk
- shaft
- accelerometer
- values
- test device
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Balance (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of accelerometer with high g values bump test device, including rotating disk, balancing weight, main pulley, belt, photoelectric encoder, rotating disk bracing strut, impulse member, from belt pulley, vertical machine, motor shaft, turntable shaft；Rotating disk horizontal positioned, vertical machine is disposed vertically, and the motor shaft, turntable shaft are to be equipped with main pulley on vertical axis, the axle of motor shaft；Driven pulley, rotating disk, photoelectric encoder are equipped with turntable shaft；The edge of rotating disk processes corresponding groove and is used for being connected with impulse member, and multiple impulse members are evenly distributed in 3/4ths region of disk peripheral, and the remaining a quarter region arrangement balancing weight of disk peripheral makes rotating disk reach dynamic balancing.The present invention can reduce the bump at the multiple short interval of high speed that part is subject in actual use in laboratory environments.
Description
Technical field
The invention belongs to high overload shock testing machine field, a kind of accelerometer with high g values bump test device of specific design.
Background technology
Many parts will bear repeatedly bump at a high speed under actual working environment, and this is proposed for the performance of part
Higher requirement.Accordingly, it would be desirable to which the test of the multiple bump performance of anti-high speed is carried out before delivering use to it in part.
Means of testing used at present is mainly various shock tables, for example Machete hammering experimental bench, Hopkinson depression bars,
The experimental rigs such as drop platform.These experimental rigs can only simulate the discontinuous impact of single, for needing multiple at a high speed
The anti-bump performance detection of the part worked under bump, with certain limitation.With accelerometer with high g values
Extensive use, the anti-bump performance detection condition to accelerometer with high g values there has also been new requirement.
For the new demand of anti-bump performance detection means, accelerometer with high g values bump test device is designed.
The data source of experimental rig comes from continuous impact process, therefore simulated test can make the part impacted truly
Continuous impact is afforded, so that the multiple bump of high speed that preferably simulation part is subject in actual use.,
In actual tests, accelerometer with high g values can be installed on tested part, it is big to measure the actual impact being subject to of tested part
It is small, it can also examine the performance of accelerometer with high g values good and bad.Experimental rig can provide various performances of the part under such impact
Change, the research of the performance change of part, which is provided, under the multiple bump of Design and optimization and high speed for new parts facilitates cheap
Experimental condition.
The content of the invention
One is provided it is an object of the invention to detection and research for the performance change of part under multiple bump at a high speed
New experimental provision is planted, the high speed that reduction part is subject in actual use as much as possible in laboratory environments repeatedly connects
Continuous impact, so as to reduce experimental cost, improves Efficiency.
In order to reach the purpose, technical solution of the invention is：Impulse member rotation is driven using the high speed rotation of rotating disk
Turn, then cause impulse member high speed impact by impulse member, so that being obtained the high overload at repeatedly short interval, Jin Erda by impulse member
The purpose for the multiple bump of high speed being subject in actual use to reduction part.
The present invention proposes a kind of accelerometer with high g values bump test device, including rotating disk, balancing weight, main pulley,
Belt, photoelectric encoder, rotating disk bracing strut, impulse member, from belt pulley, vertical machine, motor shaft, turntable shaft；Rotating disk level is put
Put, vertical machine is disposed vertically, the motor shaft, turntable shaft are to be equipped with main pulley on vertical axis, the axle of motor shaft；Rotating disk
Driven pulley, rotating disk, photoelectric encoder are equipped with axle；The edge of rotating disk processes corresponding groove and is used for and impulse member phase
Connection, multiple impulse members are evenly distributed in 3/4ths region of disk peripheral, the remaining a quarter area of disk peripheral
Domain arrangement balancing weight makes rotating disk reach dynamic balancing.
Further in embodiment, described turntable shaft is equipped with the 4th thrust force aligning roller successively from top to bottom
Bearing, the 3rd key, driven pulley, sleeve, the second key, rotating disk, the 3rd self-aligning thrust roller bearing, rotating disk shaft supporting frame；Will
Turntable shaft is attached on turntable shaft pedestal, and turntable shaft is cased with sleeve.
Further in embodiment, described motor shaft assembles the first thrust force aligning Roller Shaft successively from top to bottom
Hold, the first key, main pulley, the second self-aligning thrust roller bearing.
Further in embodiment, 16 impulse members are evenly distributed in 3/4ths area of disk peripheral
Domain.
Further in embodiment, the impulse member include impact pedestal, impact head, shear pin, rotary shaft and
Attachment screw；Due to the presence of shear pin, impact head is rotated with the rotary shaft that will not be had mercy on before being come in contact by impulse member, and
After impact occurs, shear pin is cut, and impact head rotates around rotary shaft, gets out of the way impact distance.
Further in embodiment, the centre-to-centre spacing of described belt pulley is 1500mm.
Further in embodiment, the belt is V-type index zone.
Further in embodiment, rotating disk shaft supporting frame is a umbrella frame moulding, centered on five support arm rotating shafts
It is uniformly distributed.
Further in embodiment, the photoelectric encoder is fixed on rotating disk bracing strut by screw, can be with
The angle of accurately measure disk shaft rotation, the data that photoelectric encoder is measured will be transmitted in control end.
Further in embodiment, in addition to the data that control module is transmitted by photoelectric encoder are calculated
Go out current time plane of rotor disc relative to the angle that initial position is turned over, and the now rotating speed of rotating disk.The present invention compared to
Existing technology, the advantage is that：
（1）Realize the bump at short interval.
（2）It is larger by the impulsive force suffered by impact part, thus larger acceleration can be produced.
（3）The multiple bump of high speed that part is subject in actual use can be reduced in laboratory environments.
（4）Impact head is convenient for changing, the service life of extension fixture.
Brief description of the drawings
Fig. 1 is a kind of overall top view of accelerometer with high g values bump test device of the invention.
Fig. 2 is a kind of overall front cross sectional view of accelerometer with high g values bump test device of the invention.
Fig. 3 is a kind of rotating disk top view of accelerometer with high g values bump test device of the invention.
Fig. 4 is a kind of impulse member top view of accelerometer with high g values bump test device of the invention.
Fig. 5 is a kind of impulse member oblique view of accelerometer with high g values bump test device of the invention.
1- rotating disks, 2- balancing weights, 3- main pulleys, 4- motor shaft shaft-cups, 5- belts, 6- photoelectric encoders, 7- turntable shafts
Support, 8- impulse members, 9- is from belt pulley, 10- vertical machines, 11- motor shafts, the self-aligning thrust roller bearings of 12- first, 13-
One key, the self-aligning thrust roller bearings of 14- second, the self-aligning thrust roller bearings of 15- the 3rd, 16- turntable shafts, the keys of 17- second, 18-
3rd key, the self-aligning thrust roller bearings of 19- the 4th, 20- turntable shaft pedestals, 21- sleeves, 22- impact pedestals, 23- impact heads,
24- shear pins, 25- rotary shafts, 26- attachment screws.
Embodiment
Embodiment 1
The present invention accelerometer with high g values bump test device, including rotating disk 1, balancing weight 2, main pulley 3, belt 5,
Photoelectric encoder 6, rotating disk bracing strut 7, impulse member 8, from belt pulley 9, vertical machine 10, motor shaft 11, turntable shaft 16；Rotating disk water
Placing flat 1, vertical machine 10 is disposed vertically, and the motor shaft 11, turntable shaft 16 are to be equipped with vertical axis, the axle of motor shaft 11
Main pulley 3；Driven pulley 9, rotating disk 1, photoelectric encoder 6 are equipped with turntable shaft；The edge of rotating disk 1 is processed accordingly
Groove is used for being connected with impulse member 8, and multiple impulse members 8 are evenly distributed in 3/4ths region of the circumference of rotating disk 1, rotating disk
The remaining a quarter region arrangement balancing weight 2 of 1 circumference makes rotating disk 1 reach dynamic balancing.
The distance of motor and turntable shaft base will ensure the centre-to-centre spacing of motor shaft and turntable shaft, then be fixed on ground by the two
Face.Self-aligning thrust roller bearing is loaded onto at the shaft shoulder of motor shaft, then motor shaft is assembled on motor and is attached to key actively
After on wheel shaft, belt driving wheel is assembled on drive sprocket axle, shaft-cup is then covered, bolt is tightened.
Self-aligning thrust roller bearing is loaded onto at the shaft shoulder of turntable shaft, then turntable shaft is assembled on turntable shaft pedestal,
After key is attached on turntable shaft, belt slave wheel is assembled on turntable shaft, upper bush is then covered, loads onto and rotating disk is loaded onto after key,
Self-aligning thrust roller bearing is loaded onto, rotating disk shaft supporting frame is then loaded onto, five support ends of rotating disk shaft supporting frame are fixed on ground
On, then photoelectric encoder is fixed on rotating disk shaft supporting frame.Finally load onto belt.
The installation of rotating disk：Impact pedestal is placed on the groove on disk peripheral first, after alignment screwed hole, spiral shell is screwed on
Bolt, then inserts impact head from the gap between the impact plate of pedestal two, by bolt through impact pedestal and impact head after alignment hole,
Nut is screwed in the other end.It is then aligned with impacting the hole got out in advance for shear pin on pedestal and impact head, is inserted into shearing
Pin.By that analogy, 16 impulse members are equably assembled in 270 degree of spaces of disk peripheral.Then balancing weight is put into and turned
In disk plane, after being aligned with reserved fixed via, bolt is passed through rotating disk and balancing weight, then tightened with nut, by that analogy,
Remaining balancing weight is assembled on rotating disk.
Turntable module can be refilled after the completion of other positions turn to match somebody with somebody in advance and is fitted on turntable shaft.
Connection：After photoelectric encoder is installed on rotating disk shaft supporting frame, data line and power line are existed
Avoid guiding to control end on the premise of disk operation space.The power line of motor also guides to control end from ground.
Points for attention during installation：
（1）The weight of principal and subordinate's drive and rotating disk is larger, needs to be installed by professional equipment during installation, to ensure that personnel set
Standby safety.
（2）Device should have protector, or can be positioned over whole device in the hole dug out in laboratory well,
Improve supportability.
Embodiment 2
A kind of accelerometer with high g values bump test device of the present invention, is described below a kind of implementation.
Accelerometer with high g values bump test device, including rotating disk 1, balancing weight 2, main pulley 3, belt 5, photoelectricity
Encoder 6, rotating disk bracing strut 7, impulse member 8, from belt pulley 9, vertical machine 10, motor shaft 11, turntable shaft 16；Rotating disk level is put
1 is put, vertical machine 10 is disposed vertically, the motor shaft 11, turntable shaft 16 are to be equipped with main skin on vertical axis, the axle of motor shaft 11
Belt wheel 3；Driven pulley 9, rotating disk 1, photoelectric encoder 6 are equipped with turntable shaft；The edge of rotating disk 1 processes corresponding groove
For being connected with impulse member 8, multiple impulse members 8 are evenly distributed in 3/4ths region of the circumference of rotating disk 1, and rotating disk 1 is justified
Week, remaining a quarter region arrangement balancing weight 2 made rotating disk 1 reach dynamic balancing.Described turntable shaft 16 is filled successively from top to bottom
Pushed away equipped with the 4th self-aligning thrust roller bearing 19, the 3rd key 18, driven pulley 9, sleeve 21, the second key 17, rotating disk the 1, the 3rd
Power self-aligning roller bearing 15, rotating disk shaft supporting frame 7；Turntable shaft 16 is attached on turntable shaft pedestal 20, turntable shaft 16 is cased with
Cylinder 21.Described motor shaft 11 assemble successively from top to bottom the first self-aligning thrust roller bearing 12, the first key 13, main pulley 3,
Second self-aligning thrust roller bearing 14；16 impulse members 8 are evenly distributed in 3/4ths region of the circumference of rotating disk 1.It is described
Impulse member 8 includes impact pedestal 22, impact head 23, shear pin 24, rotary shaft 25 and attachment screw 26；Due to depositing for shear pin 24
, impact head 23 is rotated with the rotary shaft 25 that will not be had mercy on before being come in contact by impulse member, and after impact occurs, shear pin 24
Cut, impact head 23 rotates around rotary shaft 25, gets out of the way impact distance.The centre-to-centre spacing of described belt pulley is 1500mm.Institute
Belt 5 is stated for V-type index zone.
It is well placed as requested after vertical machine and turntable shaft pedestal, self-aligning thrust roller bearing is loaded onto on motor, so
Motor shaft is loaded onto afterwards, then the first key and main pulley are loaded onto, self-aligning thrust roller bearing and motor shaft axle is then loaded onto
Lid.Self-aligning thrust roller bearing is loaded onto on turntable shaft pedestal, then turntable shaft is loaded onto, then filled the second key and from belt pulley
On, belt is loaded onto, sleeve is then loaded onto, the 3rd key and the rotating disk assembled are loaded onto afterwards, thrust force aligning Roller Shaft is then loaded onto
Hold and rotating disk shaft supporting frame, finally load onto photoelectric encoder.
For the pre-assembly of rotating disk, impact pedestal is placed on the groove on disk peripheral first, screwed hole is directed at
Afterwards, bolt is screwed on, then inserts impact head from the gap between the impact plate of pedestal two, bolt is passed through into impact pedestal after alignment hole
And impact head, screw on nut in the other end.It is then aligned with impacting the hole got out in advance for shear pin on pedestal and impact head, then
Insert shear pin.By that analogy, 16 impulse members are equably assembled in 270 degree of spaces of disk peripheral.Then by counterweight
Block is put on plane of rotor disc, after being aligned with reserved fixed via, and bolt is passed through rotating disk and balancing weight, then is tightened with nut,
By that analogy, remaining balancing weight is assembled on rotating disk.
Workflow：Motor drives turntable rotation, rotating disk to be remained a constant speed after reaching certain rotating speed by belt drive system
Rotate.Photoelectric encoder collects rotating disk rotational angle information, and information transfer is into control end.Control end is calculated by angle information
Go out angle and current rotating speed that rotating disk currently has been rotated through, regulation motor turns after rotating speed and preset rotation speed are compared
Speed, makes rotating disk be rotated with preset rotation speed.90 degree of gap positions that current time rotating disk is reserved are calculated by angle information simultaneously,
Relevant position will be fed into by impulse member by being in due course, and be collided with impulse member, produce continuous impact acceleration.
Claims (10)
1. a kind of accelerometer with high g values bump test device, it is characterised in that：Including rotating disk（1）, balancing weight（2）, main skin
Belt wheel（3）, belt（5）, photoelectric encoder（6）, rotating disk bracing strut（7）, impulse member（8）, from belt pulley（9）, vertical machine
（10）, motor shaft（11）, turntable shaft（16）；Rotating disk horizontal positioned（1）, vertical machine（10）It is disposed vertically, the motor shaft
（11）, turntable shaft（16）For vertical axis, motor shaft（11）Axle on be equipped with main pulley（3）；It is equipped with turntable shaft driven
Belt pulley（9）, rotating disk（1）, photoelectric encoder（6）；Rotating disk（1）Edge process corresponding groove and be used for and impulse member（8）
It is connected, multiple impulse members（8）It is evenly distributed in rotating disk（1）3/4ths region of circumference, rotating disk（1）Circumference is remaining
Balancing weight is arranged in a quarter region（2）Make rotating disk（1）Reach dynamic balancing.
2. accelerometer with high g values bump test device according to claim 1, it is characterised in that：Described rotating disk
Axle（16）It is equipped with the 4th self-aligning thrust roller bearing successively from top to bottom（19）, the 3rd key（18）, driven pulley（9）, set
Cylinder（21）, the second key（17）, rotating disk（1）, the 3rd self-aligning thrust roller bearing（15）, rotating disk shaft supporting frame（7）；By turntable shaft
（16）It is attached to turntable shaft pedestal（20）On, turntable shaft（16）It is cased with sleeve（21）.
3. accelerometer with high g values bump test device according to claim 1, it is characterised in that：Described motor
Axle（11）Assemble the first self-aligning thrust roller bearing successively from top to bottom（12）, the first key（13）, main pulley（3）, second push away
Power self-aligning roller bearing（14）.
4. accelerometer with high g values bump test device according to claim 1, it is characterised in that：16 impulse members
（8）It is evenly distributed in rotating disk（1）3/4ths region of circumference.
5. accelerometer with high g values bump test device according to claim 1, it is characterised in that：The impulse member
（8）Including impact pedestal（22）, impact head（23）, shear pin（24）, rotary shaft（25）And attachment screw（26）；Due to shear pin
（24）Presence, impact head（23）With the rotary shaft that will not be had mercy on before being come in contact by impulse member（25）Rotate, and in impact hair
After life, shear pin（24）Cut, impact head（23）Around rotary shaft（25）Rotation, gets out of the way impact distance.
6. accelerometer with high g values bump test device according to claim 1, it is characterised in that：Described belt
The centre-to-centre spacing of wheel is 1500mm.
7. accelerometer with high g values bump test device according to claim 1, it is characterised in that：The belt（5）
For V-type index zone.
8. accelerometer with high g values bump test device according to claim 2, it is characterised in that：Turntable shaft is supported
Frame（7）For a umbrella frame moulding, it is uniformly distributed centered on five support arm rotating shafts.
9. accelerometer with high g values bump test device according to claim 1, it is characterised in that：The photoelectricity is compiled
Code device（6）Rotating disk bracing strut is fixed on by screw（7）On, the angle that can be rotated with accurately measure disk shaft, photoelectricity
Encoder（6）The data measured will be transmitted in control end.
10. accelerometer with high g values bump test device according to claim 1, it is characterised in that：Also include control
The data that module is transmitted by photoelectric encoder calculate what current time plane of rotor disc was turned over relative to initial position
Angle, and the now rotating speed of rotating disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710123218.XA CN107064560B (en) | 2017-03-03 | 2017-03-03 | Accelerometer with high g values bump test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710123218.XA CN107064560B (en) | 2017-03-03 | 2017-03-03 | Accelerometer with high g values bump test device |
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| Publication Number | Publication Date |
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| CN107064560A true CN107064560A (en) | 2017-08-18 |
| CN107064560B CN107064560B (en) | 2019-09-10 |
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| CN201710123218.XA Active CN107064560B (en) | 2017-03-03 | 2017-03-03 | Accelerometer with high g values bump test device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709465A (en) * | 2018-04-18 | 2018-10-26 | 西北机电工程研究所 | A kind of accelerator of movement target plate |
| CN109470888A (en) * | 2018-12-05 | 2019-03-15 | 西北工业大学 | The calibration system and scaling method of accelerometer with high g values based on deep learning |
| CN111458098A (en) * | 2020-05-29 | 2020-07-28 | 河南理工大学 | High-speed rockfall collision fragmentation indoor test device |
| CN115371932A (en) * | 2022-08-31 | 2022-11-22 | 南京理工大学 | Laboratory is with continuous two-way high overload test device of adjustable pulse width |
| CN117969314A (en) * | 2024-03-28 | 2024-05-03 | 深圳市天洋精密科技有限公司 | Aviation structure impact strength detection device |
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| CN117969314A (en) * | 2024-03-28 | 2024-05-03 | 深圳市天洋精密科技有限公司 | Aviation structure impact strength detection device |
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| CN107064560B (en) | 2019-09-10 |
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