CN107167290B - A kind of dummy's waist twisting device for testing stiffness and test method - Google Patents
A kind of dummy's waist twisting device for testing stiffness and test method Download PDFInfo
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- CN107167290B CN107167290B CN201710467957.0A CN201710467957A CN107167290B CN 107167290 B CN107167290 B CN 107167290B CN 201710467957 A CN201710467957 A CN 201710467957A CN 107167290 B CN107167290 B CN 107167290B
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- dummy
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- baffle
- turntable
- axle sleeve
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention provides a kind of dummy's waist twisting stiffness measurement device, including seat open frame (1)；Frequency control motor (2), worm-gear speed reducer (3), lower drive shaft (4), lower coupler (5)；Dynamic torque sensor (6), upper coupling (7), axle sleeve (8), upper transmission shaft (9), turntable (10), waist baffle (11), back backup plate (12), chest baffle (13), long threaded rod (14)；Seat open frame upper cross plate (15), the present invention can realize that motor directly controls, torque tachogenerator can directly measure dynamic torque and rotating speed and derived curve, and the device of the invention highly shortened experimental period for experiment provides guarantee repeatedly in a short time.
Description
Technical field
The present invention relates to a kind of waist twisting device for testing stiffness more particularly to one kind can accurately adjust reverse speed, can
The device of dummy's waist twisting rigidity test is applicable in simultaneously.
Background technology
Substitute of the dummy as true man in experiment, mechanical characteristic should have a degree of similitude with true man.At present
Studies have found that the waist twisting rigidity and actual human body of safety belt dummy TNO-10 used in current automotive safety tape test
Have certain difference, this species diversity may influence the accuracy and reliability of automotive safety experiment conclusion.But current row
Specifically understand for this species diversity in the industry and belong to blank, it is therefore desirable to which one kind is dedicated for dummy's waist twisting rigidity test system
System and method carry out the waist twisting rigidity of test comparison dummy, and reference and thinking are provided for later automobile dummy research.
The content of the invention
Present invention aims at solving the above problems, a kind of automation, variable-ratio are provided, overload protection can be provided, can be fitted
The waist twisting device for testing stiffness tested with dummy.The invention is achieved through the following technical solutions.
The technical scheme is that a kind of dummy's waist twisting stiffness measurement device is provided, including seat open frame；
Frequency control motor, worm-gear speed reducer, lower drive shaft, lower coupler；Dynamic torque sensor, upper coupling, axle sleeve, on
Transmission shaft, turntable, waist baffle, back backup plate, chest baffle, long threaded rod；Seat open frame upper cross plate, it is characterised in that：
The output shaft of frequency control motor is connected by the input shaft worm screw of connecting key and worm type of reduction gearing, worm gear snail
The output shaft of bar speed reducer is connected perpendicular to water surface ground and with the lower end of lower drive shaft 4, lower drive shaft upper end and lower coupler
Lower end connects；
The input shaft of dynamic torque sensor is connected with the upper end of lower coupler；The output shaft of dynamic torque sensor with it is upper
The lower end of shaft coupling 7 passes through key connection；Upper transmission shaft lower end is inserted in the hole of upper coupling upper end, is driven by key connection；
Upper transmission shaft is fixed by ring flange and turntable, and axle sleeve is sleeved on the outside of transmission shaft circumference, in upper transmission shaft and
A pair of of taper roll bearing and oil sealing are set between axle sleeve, and axle sleeve includes flange portions, and flange section is drilled with and chair type machine
The through hole of frame upper cross plate threaded hole cooperation, is connected axle sleeve and seat open frame upper cross plate by bolt；And chair type machine
Frame upper cross plate is connected with seat open frame, for carrying the gravity for transferring dummy；
Back backup plate is also to be connected with bolt with seat open frame, and chest baffle passes through 6 root long studs with back backup plate
It is connected, it is similar with the adjusting of waist baffle to be fitted with the position of adjusting bolt to adjust the distance between back backup plate and chest baffle
Answer various sizes of dummy；
The main function of axle sleeve and its internal a pair of of taper roll bearing is in order to which dummy's load passes through axis when will test
The flange portions of set are transferred to seat open frame and are then passed to ground, ensure that the gravitational load of dummy is not loaded directly into being driven
On deceleration device.
Further, connected above turntable and control two waist baffles, the threaded connection hole above turntable and waist baffle
For strip.
Further, the stabilization that clump weight is used for ensureing rack during experiment is connected to above seat open frame, rack is always
Keep vertical state.
It is tested the present invention also provides a kind of using dummy's waist twisting stiffness measurement device described in claim 1
Method, it is characterised in that comprise the following steps：
Step 1 places the dummy for needing to test, it is made to be sitting on turntable；Waist baffle is adjusted according to the hip breadth of measured object
The distance between, while keep measured object upper body vertical, adjusting chest baffle 13 according to its back makes itself and the measured object upper part of the body
Fitting；
Step 2 powers on, and is powered to dynamic torque sensor, adjusts motor inverter by 2 rotating speed of frequency control motor
Minimum value is transferred to, starts frequency control motor；
Step 3, the dummy adjusted on frequency control motor rotating speed drive turntable rotate；Frequency conversion is closed after 45 ° of turntable rotation
Speed regulating motor；
Step 4, after frequency control motor stops operating, read dynamic torque sensor 6 gather real-time torque and turn
The data and curves of speed the processing such as are filtered it using the poster processing soft；
Step 5, the real-time torque T-t curves shown according to dynamic torque sensor and real-time speed curves n-t, will be real-time
Rotating speed is integrated to obtain the accurate angle that turntable turns overAccording to the torque T and corner at the time of correspondenceUtilize formulaCalculate dummy's waist twisting rigidity；
Connection bolt on step 6, loosening waist baffle and long threaded rod, unloads the crash dummy being completed；
Step 7, the position for adjusting waist baffle connection bolt U-lag on turntable are put into another crash dummy adjustment
Waist baffle and chest baffle ensure that tested dummy buttock is fixed, and upper body is straight and upright to be bonded with back backup plate；Step 2 is continued back to survey
Another collision experiment dummy's waist twisting rigidity of amount.
The present invention provides a kind of dummy's waist twisting device for testing stiffness, including frequency control motor, speed reduction gearing,
Torque tachogenerator, rotating-table apparatus, stent.During experiment measurement dummy's waist twisting rigidity, frequency control motor, which will rotate, to be turned round
Square is input to worm-gear speed reducer and power is passed to torque tachogenerator by deceleration torque, and torque tachogenerator measures
The torque of input and rotating speed.The dummy that torque is passed on driven by rotary disc turntable is rotated certain angle by torque using upper transmission shaft
Degree.The torque measured according to torque tachogenerator and rotating speed can obtain the torsion stiffness of dummy.So as to which the present invention can use
To measure the waist twisting rigidity of car belt dummy.
The present invention relatively has prior art advantage：
1st, the present invention can realize that motor directly controls, and torque tachogenerator can directly measure dynamic torque and rotating speed
And derived curve；
2nd, the device of the invention highly shortened experiment for experiment provides a kind of brand-new technological means repeatedly in a short time
Cycle has reached unexpected technique effect.
3rd, the present invention can be tested with the distance between regulating fender suitable for various sizes of dummy；
4th, the present invention has filled up the vacancy of dummy's waist twisting Rigidity Experiment apparatus and method；
5th, the present invention can change the rotating speed of motor and torque measures the torsion stiffness data of dummy's waist under different condition.
Description of the drawings
Fig. 1 is the stereogram of whole devices of the invention, illustrates frequency control motor in figure, worm-gear speed reducer passes
The position relationship of dynamic device, rotating-table apparatus and stent frame.
Fig. 2 is speed reduction gearing stereogram of the present invention.
Fig. 3 is transmission shaft in the present invention, axle sleeve, the connection stereogram of horizontal version and dial portion on seat open frame.
Fig. 4 is Upper shaft sleeve 8 of the present invention and seat open frame connection diagram.
Wherein：1st, seat open frame；2nd, frequency control motor；3rd, worm-gear speed reducer；4th, lower drive shaft；5th, lower shaft coupling
Device；6th, torque tachogenerator；7th, upper coupling；8th, axle sleeve；9th, upper transmission shaft；10th, turntable；11st, waist baffle；12nd, back
Backup plate；13rd, chest baffle；14th, long threaded rod；15th, seat open frame upper cross plate；16th, clump weight.
Specific embodiment
The concrete scheme of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the present invention provides a kind of dummy's waist twisting stiffness measurement device, including seat open frame 1；Become
Frequency modulation speed motor 2, worm-gear speed reducer 3, lower drive shaft 4, lower coupler 5；Dynamic torque sensor 6, upper coupling 7, axis
Set 8, upper transmission shaft 9, turntable 10, waist baffle 11, back backup plate 12, chest baffle 13, long threaded rod 14；It is horizontal on seat open frame
Plate 15, clump weight 16；
Wherein, the output shaft of frequency control motor 2 is connected by the input shaft worm screw of connecting key and worm type of reduction gearing 3
It connects, the output shaft of worm-gear speed reducer 3 is perpendicular to water surface ground, as shown in Z-direction in Fig. 1.4 upper end of lower drive shaft is under
5 lower end of shaft coupling passes through key connection.Frequency control motor 2 realizes that reverse speed changes using the method for frequency control.
With reference to figure 2, dynamic torque sensor 6 includes input shaft and output shaft, wherein dynamic torque sensor 6 in this example
Input shaft be connected with the upper end of lower coupler 5；Output shaft (that upward one end of Z axis) and the upper shaft coupling of dynamic torque sensor 6
The lower end of device 7 passes through key connection.Upper 9 lower end of transmission shaft is inserted in the hole of 7 upper end of upper coupling, is driven by key connection.
With reference to figure 3, Fig. 4, upper 9 top of transmission shaft is divided into flange plate-like, is drilled with threaded hole above flange portions, passes through spiral shell
It tethers and switches through disk 10.Power is connected through a screw thread effect and is transferred to turntable 10 from upper transmission shaft 9, when driving experiment on turntable 10
Dummy rotates.
With reference to figure 4, axle sleeve 8 is sleeved on the outside of 9 circumference of transmission shaft, and a pair of of circle is set between upper transmission shaft 9 and axle sleeve 8
Taper roller bearing and oil sealing, axle sleeve 8 include flange portions, and the flange section of axle sleeve 8 is drilled with and seat open frame upper cross plate 15
The through hole of threaded hole cooperation, is connected axle sleeve 8 and seat open frame upper cross plate 15 by bolt.It is and horizontal on seat open frame
Plate 15 is connected with seat open frame 1, for carrying the gravity for transferring dummy.
The main function of axle sleeve 8 and its internal a pair of of taper roll bearing is in order to which the load of dummy when testing is passed through
The flange portions of axle sleeve 8 are transferred to seat open frame 1 and are then passed to ground, so as to ensure that the gravitational load of dummy does not add directly
It is loaded in transmission decelerating device, taper roll bearing ensures to be driven smooth stabilization.This set method fundamentally ensure that survey
Accuracy of measurement solves the problems, such as to perplex the experiment for a long time, and result of the test has reached unexpected technique effect.
As shown in Figure 1, turntable 10 above be bolted left and right two waist baffles 11.Turntable 10 and waist baffle 11
Threaded connection hole above is strip, can adjust the guarantee of the distance between two baffles according to different experiment dummy sizes
Dummy does not have the axial movement in tri- directions of X, Y, Z only as upper transmission shaft is around Z-direction rotation after taking turntable 10.
Back backup plate 12 is also to be connected with bolt with seat open frame 1, and chest baffle 13 passes through 6 with back backup plate 12
Long threaded rod is connected, with waist baffle adjust it is similar can with the position of adjusting bolt come adjust back backup plate 12 and chest baffle 13 it
Between distance adapt to various sizes of dummy.Chest baffle 13 is primarily to limit dummy above the waist when testing measurement around Z
The rotary motion of axis ensures the upper part of the body of dummy and the relative twisting movement of the lower part of the body.
Seat open frame 1 is connected to the stabilization that clump weight 16 is used for ensureing rack during experiment above, and rack remains perpendicular
Straight state.
This example also provides a kind of dummy's waist twisting stiffness test method, specific as follows.
Step 1 places the dummy for needing to test or human body, it is made to be sitting on turntable 10.According to the hip breadth tune of measured object
The distance between whole waist baffle 11, while keep measured object upper body vertical, according to its back adjust chest baffle 13 make its with
Measured object is bonded above the waist.
Step 2 powers on, and is powered to dynamic torque sensor 6, and adjustment motor inverter is by 2 turns of frequency control motor
Velocity modulation starts frequency control motor 2 to minimum value.
Step 3, the dummy adjusted on 2 rotating speed of frequency control motor drive turntable 10 rotate.It is closed after general 45 ° of turntable rotation
Close frequency control motor 2.
Step 4, after frequency control motor 2 stops operating, read dynamic torque sensor 6 gather real-time torque and turn
The data and curves of speed the processing such as are filtered it using the poster processing soft.
Step 5, the real-time torque T-t curves according to the display of dynamic torque sensor 6 and real-time speed curves n-t, will be real
When rotating speed integrated to obtain the accurate angle that turntable 10 turns overAccording to the torque T and corner at the time of correspondenceUtilize public affairs
FormulaCalculate dummy's waist twisting rigidity.
Connection bolt on step 6, loosening waist baffle 11 and long threaded rod 14, it is false to unload the collision being completed
People.
Step 7 adjusts the position that waist baffle 11 connects bolt U-lag on turntable 10, is put into another crash dummy
Adjustment waist baffle 11 and chest baffle 13 ensure that tested dummy buttock is fixed, and upper body is straight and upright to be bonded with back backup plate 12.Continue
It returns to step 2 and measures another collision experiment dummy waist twisting rigidity.
Finally it should be noted that above example is merely to illustrate technical scheme and unrestricted, the example pair
The present invention is described in detail, and those of ordinary skill in the art are it is understood that modifying or waiting to the technical solution
With replacement, but the objective and scope of technical solution of the present invention are not departed from, should all cover and work as in scope of the presently claimed invention
In.
Claims (4)
1. a kind of dummy's waist twisting stiffness measurement device, including seat open frame (1)；Frequency control motor (2), worm gear snail
Bar speed reducer (3), lower drive shaft (4), lower coupler (5)；Dynamic torque sensor (6), upper coupling (7), axle sleeve (8), on
Transmission shaft (9), turntable (10), waist baffle (11), back backup plate (12), chest baffle (13), long threaded rod (14)；Chair type machine
Frame upper cross plate (15), it is characterised in that it is characterized in that：
The output shaft of frequency control motor (2) is connected by connecting key with the input shaft worm screw of worm-gear speed reducer (3), worm gear
The output shaft of worm decelerating machine (3) is connected perpendicular to water surface ground and with the lower end of lower drive shaft (4), lower drive shaft (4) upper end
It is connected with lower coupler (5) lower end；
The input shaft of dynamic torque sensor (6) is connected with the upper end of lower coupler (5)；The output of dynamic torque sensor (6)
The lower end of axis and upper coupling (7) passes through key connection；Upper transmission shaft (9) lower end is inserted in the hole of upper coupling (7) upper end, is passed through
Key connection is driven；
Upper transmission shaft (9) is fixed by ring flange and turntable (10), and axle sleeve (8) is sleeved on the outside of transmission shaft (9) circumference, upper
A pair of of taper roll bearing and oil sealing are set between transmission shaft (9) and axle sleeve (8), and axle sleeve (8) includes flange portions, axle sleeve
(8) flange section is drilled with the through hole with the cooperation of seat open frame upper cross plate (15) threaded hole, by bolt by axle sleeve (8) and seat
Chair form rack upper cross plate (15) connects；And seat open frame upper cross plate (15) is connected with seat open frame (1), for holding
Carry the gravity for transferring dummy；
Back backup plate (12) is also to be connected with bolt with seat open frame (1), and chest baffle (13) is logical with back backup plate (12)
It crosses 6 root long studs to be connected, adjust with waist baffle similar can adjust back backup plate (12) and chest with the position of adjusting bolt
The distance between baffle (13) adapts to various sizes of dummy；
The main function of axle sleeve (8) and its internal a pair of of taper roll bearing is in order to which dummy's load passes through axle sleeve when will test
(8) flange portions are transferred to seat open frame (1) and are then passed to ground, ensure that the gravitational load of dummy is not loaded directly into
In transmission decelerating device.
2. dummy's waist twisting stiffness measurement device according to claim 1, it is characterised in that：Turntable (10) connects above
The two waist baffles (11) in left and right, the threaded connection hole of turntable (10) and waist baffle (11) above are strip.
3. dummy's waist twisting stiffness measurement device according to claim 1, it is characterised in that：On seat open frame (1)
Face is connected to the stabilization that clump weight (16) is used for ensureing rack during experiment, and rack remains vertical state.
4. a kind of method tested using dummy's waist twisting stiffness measurement device described in claim 1, feature are existed
In comprising the following steps：
Step 1 places the dummy for needing to test, it is made to be sitting on turntable (10)；Waist baffle is adjusted according to the hip breadth of measured object
The distance between (11), while keep measured object upper body vertical, adjusting chest baffle (13) according to its back makes itself and measured object
It is bonded above the waist；
Step 2 powers on, and is powered to dynamic torque sensor (6), and adjustment motor inverter turns frequency control motor (2)
Velocity modulation starts frequency control motor (2) to minimum value；
Step 3, the dummy adjusted on frequency control motor (2) rotating speed drive turntable (10) rotate；It closes and becomes after 45 ° of turntable rotation
Frequency modulation speed motor (2)；
Step 4, after frequency control motor (2) stops operating, read dynamic torque sensor (6) gather real-time torque and turn
The data and curves of speed, are filtered it using the poster processing soft；
Step 5, the real-time torque T-t curves according to dynamic torque sensor (6) display and real-time speed curves n-t, will be real-time
Rotating speed is integrated to obtain the accurate angle that turntable (10) turns overAccording to the torque T and corner at the time of correspondenceUtilize formulaCalculate dummy's waist twisting rigidity；
It is false to unload the collision being completed for connection bolt on step 6, loosening waist baffle (11) and long threaded rod (14)
People；
Step 7 adjusts the position that waist baffle (11) connects bolt U-lag on turntable (10), is put into another crash dummy,
Adjustment waist baffle (11) and chest baffle (13) ensure that tested dummy buttock is fixed, and upper body is straight and upright to be pasted with back backup plate (12)
It closes；It continues back at step 2 and measures another collision experiment dummy waist twisting rigidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467957.0A CN107167290B (en) | 2017-06-20 | 2017-06-20 | A kind of dummy's waist twisting device for testing stiffness and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467957.0A CN107167290B (en) | 2017-06-20 | 2017-06-20 | A kind of dummy's waist twisting device for testing stiffness and test method |
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| Publication Number | Publication Date |
|---|---|
| CN107167290A CN107167290A (en) | 2017-09-15 |
| CN107167290B true CN107167290B (en) | 2018-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710467957.0A Active CN107167290B (en) | 2017-06-20 | 2017-06-20 | A kind of dummy's waist twisting device for testing stiffness and test method |
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| CN (1) | CN107167290B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823721B (en) * | 2018-08-09 | 2022-08-05 | 湖南赛孚汽车科技股份有限公司 | TNO-10 dummy trunk calibration device and calibration method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11351813A (en) * | 1998-06-08 | 1999-12-24 | Canon Inc | Interference apparatus and position detector using the same |
| KR20060054860A (en) * | 2004-11-16 | 2006-05-23 | 김학충 | The twist machine for shoulder |
| CN103134654A (en) * | 2013-02-05 | 2013-06-05 | 奇瑞汽车股份有限公司 | Impact test device |
| CN104062121B (en) * | 2014-07-14 | 2017-01-11 | 重庆大学 | Device for detecting torsional rigidity and return difference of precision planetary reducer |
| CN106286725B (en) * | 2015-05-27 | 2018-12-21 | 高利央 | Automatic transmission |
| CN204812909U (en) * | 2015-07-01 | 2015-12-02 | 西安石油大学 | Automatic waist seat is turned round in regulation |
| CN205664986U (en) * | 2016-06-01 | 2016-10-26 | 宁波汽车零部件检测有限公司 | Support arrangement for bump test dummy is used for placing |
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Effective date of registration: 20190710 Address after: 518063 Guangdong Province Nanshan District Yuehai Street High-tech Industrial Park South District Virtual University Park A214 Co-patentee after: Hunan University Patentee after: Shenzhen Research Institute of Hunan University Address before: 410082 No. 1 Lushan South Road, Yuelu District, Changsha City, Hunan Province Patentee before: Hunan University |
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