CN108279132A - A kind of air bag fatigue test device and air bag method for testing fatigue - Google Patents
A kind of air bag fatigue test device and air bag method for testing fatigue Download PDFInfo
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- CN108279132A CN108279132A CN201810239988.5A CN201810239988A CN108279132A CN 108279132 A CN108279132 A CN 108279132A CN 201810239988 A CN201810239988 A CN 201810239988A CN 108279132 A CN108279132 A CN 108279132A
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- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 238000009661 fatigue test Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000033001 locomotion Effects 0.000 claims abstract description 40
- 238000004364 calculation method Methods 0.000 claims abstract description 7
- 239000011120 plywood Substances 0.000 claims description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 240000006909 Tilia x europaea Species 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 238000011017 operating method Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000002775 capsule Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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Abstract
The present invention discloses a kind of air bag fatigue test device, and position limit device is vertically movable by the action of vertical location apparatus band, and can position fixation;Vertical motion device is driven lower caging device to be moved back and forth in vertical direction and is fixedly installed in rack respectively with compressing gasbag, vertical location apparatus and vertical motion device.The vertical motion device that the device is used to provide circulating pressure is located at bottom, the vertical location apparatus of positioning gasbag position is located at top, two parts are mutual indepedent, the driving part of vertical motion device is fixed, vertical location apparatus only needs to drive position limit device movement, to simplify whole structure.The present invention also provides a kind of air bag method for testing fatigue, position limit device and lower caging device are adjusted to corresponding position by control unit according to result of calculation;According to the above calculation formula, it is only necessary to which remaining data can be calculated in importation data, simplify operating procedure, can avoid being manually entered the situation for mistake occur.
Description
Technical field
The present invention relates to technical field of test equipment, further relate to a kind of air bag fatigue test device.In addition, this hair
It is bright to further relate to a kind of air bag method for testing fatigue.
Background technology
Automobile shock air bag is a kind of tool for promoting riding comfort, is widely used in all kinds of automobiles.Shock-absorption air bag
It is needed by stringent test in production, to ensure that it, with enough safeties, meets the requirement of long-time service.
Track is mainly shaken by simulated automotive in actual moving process to the test of shock-absorption air bag, repetition is applied to it
Active force, so that shock-absorption air bag is constantly compressed and is restored;Current existing test device presses to air bag by piston,
The rotary motion of component of outputing power is changed into the upper and lower translation of piston and needs to change when testing various sizes of air bag
The vertical position for becoming piston needs the position for adjusting driving equipment together because piston is driven by driving equipments such as engines or motor
It sets, leads to device complicated integral structure;And this mode is realized by mechanical movement completely, is only capable of by changing rotational speed regulation pressure
Contracting frequency, and be difficult to adjust suppressed range, it is difficult to meet the test request more refined.
For those skilled in the art, a kind of air bag test device simple in structure, easy to operate how is designed,
It is the current technical issues that need to address.
Invention content
The present invention provides a kind of air bag fatigue test device, simple in structure, easy to operate, can effectively complete air bag inspection
Operation is surveyed, concrete scheme is as follows:
A kind of air bag fatigue test device, including position limit device and lower caging device, the position limit device connection are perpendicular
To positioning device, the position limit device is vertically movable by vertical location apparatus band action, and is existed according to the size of air bag
Corresponding position positioning is fixed;The lower caging device connects vertical motion device, under the vertical motion device drive is described
Limiting device moves back and forth compressing gasbag in vertical direction;The vertical location apparatus and the vertical motion device are fixed respectively
It is installed in rack.
Optionally, the position limit device includes the cope plate and upper fixed seat being fixed to each other, and the cope plate is connected to
The vertical location apparatus, fixed seat bottom are in the spherical surface being adapted with bladder shape;
The lower caging device includes the lower template being fixed to each other and lower fixed seat, and the lower template is connected to described vertical
Vibrating device, the lower fixed seat top is in the spherical surface being adapted with bladder shape.
Optionally, the vertical location apparatus is leading screw, and the cope plate includes the intermediate top plate for being equipped with gap
With lower plywood, the top plate coordinates with threads of lead screw, and fixed seat is fixedly mounted in the lower plywood;The top plate with
It is connected and fixed by vertically arranged connecting pole between the lower plywood.
Optionally, the rack includes the first guide post, the second guide post, top plate, middle plate and pedestal, and described first is oriented to
Column is fixed between the top plate and the middle plate, and second guide post is fixed between the middle plate and the pedestal, institute
It states connecting pole and runs through the middle plate;
The top plate is limited by the first guide post limition orientation, the lower plywood by second guide post
It is oriented to.
Optionally, the lower template passes through the second guide post limition orientation.
Optionally, the vertical location apparatus drives rotation by the motor being arranged on the top plate;The motor is logical
Cross control unit control operation.
Optionally, the vertical motion device is hydraulic cylinder.
In addition, the present invention also provides a kind of air bag method for testing fatigue, including:
The top of vertical location apparatus and the spacing of vertical motion device lowermost end are set as a, the vertical positioning fills
The spacing on the top set and position limit device top is b, the vertical motion device lowermost end and lower caging device bottom end
Spacing is c, and the height of the position limit device is d, and the height of the lower caging device is e, and the height before air bag compression is f,
The compressed height of air bag is g;
Wherein a, d, e are constant, and f is preset value, and c is adjustable value;
Control unit is calculated as follows:
B=a-c-d-e-f;
Maximum displacement=c+f-g that the lower caging device moves up;
The position limit device and the lower caging device are adjusted to phase by described control unit according to the result of calculation
Answer position.
Optionally, whether described control unit analysis input data is reasonable, starts test if rationally, if otherwise sending out police
Report;Deterministic process carries out as follows:
Lower caging device upper limit position-lower caging device lower limit position < f-g;
Position limit device limit inferior+lower caging device limes superiors<In the maximum distance-of position limit device and lower caging device
Height after limiting device height-lower caging device height-air bag compression;
Lower limit position=a-c-d-e-N of the position limit device;
Wherein N is reserved margin.
The invention discloses a kind of air bag fatigue test device, including position limit device and lower caging device, upper limit dresses
Connection vertical location apparatus is set, position limit device is vertically movable by the action of vertical location apparatus band, and exists according to the size of air bag
Corresponding position positioning is fixed, and position limit device can be adjusted to suitable vertical position according to different balloon sizes;Lower limit
Position device connects vertical motion device, and vertical motion device drives lower caging device to be moved back and forth with compressed gas in vertical direction
Capsule, for position limit device for adjusting vertical position to match various sizes of air bag, lower caging device then passes through reciprocating movement pair
Air bag applies the compressing force of rule;And vertical location apparatus and vertical motion device are fixedly installed in rack respectively, by machine
Frame provides support force.The vertical motion device that the device is used to provide circulating pressure is located at bottom, positioning gasbag position it is vertical
Positioning device is located at top, and two parts are mutual indepedent, and the driving part of vertical motion device is fixed, and vertical location apparatus is only
Position limit device need to be driven to move, to simplify whole structure.
The present invention also provides a kind of air bag method for testing fatigue, control unit is calculated as follows:B=a-c-d-e-f;
Maximum displacement=c+f-g that lower caging device moves up;
Lower limit position=a-c-d-e-N of position limit device;
Wherein N is reserved margin, and the top of vertical location apparatus is a with the spacing of vertical motion device lowermost end, is erected
The spacing of top and position limit device top to positioning device is b, vertical motion device lowermost end and lower caging device bottom
The spacing at end is c, and the height of position limit device is d, and the height of lower caging device is e, and the height before air bag compression is f, air bag
Compressed height is g;
Position limit device and lower caging device are adjusted to corresponding position by control unit according to result of calculation;According to the above meter
Calculate formula, it is only necessary to which remaining data can be calculated in importation data, simplify operating procedure, calculating process is by controlling
Unit is completed, and can avoid being manually entered the situation for mistake occur.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structure chart of specific embodiment of air bag fatigue test device of the present invention.
Figure includes:
Position limit device 1, cope plate 11, top plate 111, lower plywood 112, connecting pole 113, upper fixed seat 12, lower limit
Device 2, lower template 21, lower fixed seat 22, vertical location apparatus 3, vertical motion device 4, rack 5, the first guide post 51, second
Guide post 52, top plate 53, middle plate 54, pedestal 55, motor 6.
Specific implementation mode
Core of the invention is to provide a kind of air bag fatigue test device, simple in structure, easy to operate, can be effectively
Complete balloon detection operation.
In order to make those skilled in the art more fully understand technical scheme of the present invention, below in conjunction with attached drawing and specifically
Embodiment, to the present invention air bag fatigue test device and air bag method for testing fatigue explanation is described in detail.
As shown in Figure 1, being a kind of structure chart of specific embodiment of air bag fatigue test device of the present invention, the device is by rack
5 provide support, and rack 5 is the agent structure of whole device, including position limit device 1 and lower caging device 2, upper limit dress
1 bottom for being connected to vertical location apparatus 3 is set, position limit device 1 is vertically movable with acting by vertical location apparatus 3, and according to
The size of air bag is positioned in corresponding position and is fixed, and balloon size is bigger, then the position of position limit device 1 is higher, makes upper limit
Spacing between device 1 and lower caging device 2 is bigger, ensure air bag can be put into just in the initial state position limit device 1 with
Between lower caging device 2.Lower caging device 2 is connected to the top of vertical motion device 4, and vertical motion device 4 can drive down
Limiting device 2 moves back and forth compressing gasbag in vertical direction, and air bag is made constantly to be compressed and be loosened, and tired survey is carried out to air bag
Examination.Vertical location apparatus 3 and vertical motion device 4 are fixedly installed in respectively in rack 5, are integrated all parts by rack 5
At one;The vertical motion device 4 that the device is used to provide circulating pressure is located at bottom, the vertical positioning dress of positioning gasbag position
It sets 3 and is located at top, two parts are mutual indepedent, and the driving part of vertical motion device 4 is fixed, and vertical location apparatus 3 only needs
Position limit device 1 is driven to move, position limit device 1 is simple in structure, light-weight, and complicated driving structure need not be arranged,
Simplify whole structure.
On the basis of said program, the present invention provides a kind of more specifical structure, upper limit of the invention dress herein
It includes cope plate 11 and upper fixed seat 12 to set 1, and cope plate 11 and upper fixed seat 12 be fixed to each other and be integrated, cope plate 11 upper,
Cope plate 11 is connected to vertical location apparatus 3;For upper fixed seat 12 under, 12 bottom of upper fixed seat is in be adapted with bladder shape
Spherical surface, spherical surface are recessed upwards, to ensure to have larger fitting area with the surface of air bag, make air bag uniform force.
Lower caging device 2 includes lower template 21 and lower fixed seat 22, and it is one that lower template 21 and lower fixed seat 22, which are fixed to each other,
Body;Lower template 21 is under, and the bottom of lower template 21 is connected to vertical motion device 4, and 22 top of lower fixed seat is in and balloon-shaped
The adaptable spherical surface of shape, spherical surface is to lower recess, to ensure to have larger fitting area, air bag stress equal with the surface of air bag
It is even.
Preferably, the vertical location apparatus 3 in the present invention is set as leading screw, drives cope plate 11 to move by the rotation of leading screw
It is dynamic;Specifically, cope plate 11 includes the intermediate top plate 111 for being equipped with gap and lower plywood 112, top plate 111 and lower plywood 112
Between be connected and fixed by vertically arranged connecting pole 113 namely top plate 111, lower plywood 112 and 113 three of connecting pole fix
It is integrated, synchronization lifting movement;Top plate 111 coordinates with threads of lead screw, and leading screw runs through top plate 111, can be in top plate
Screw shell is fixedly installed on 111, the mutual screw thread of external screw thread being arranged on inner wall the setting internal thread, with leading screw of screw shell is matched
It closes, the rotary motion of reel is converted to the vertical and straight movement of top plate 111;Upper fixed seat 12 is fixedly mounted in lower plywood 112, namely
Leading screw can be extend between top plate 111 and lower plywood 112, but be not connected with lower plywood 111.
Further, the rack 5 in the present invention includes the first guide post 51, the second guide post 52, top plate 53,54 and of middle plate
The structures such as pedestal 55, the first guide post 51 are fixed between top plate 53 and middle plate 54, and the second guide post 52 is fixed on 54 He of middle plate
Between pedestal 55;First guide post 51 and the second guide post 52 may be configured as the more polished rods being mutually parallel, the first guide post
51 run through top plate 111, and top plate 111 passes through 51 limition orientation of the first guide post;Second guide post 52 runs through lower plywood 112,
Lower plywood 112 passes through 52 limition orientation of the second guide post.
In addition, stability when in order to ensure that lower template 21 moves up and down, the second guide post 52 is arranged through lower template 21,
Lower template 21 passes through 52 limition orientation of the second guide post.Under normal circumstances, the first guide post 51 and the second guide post 52 are set respectively
Four polished rods are set to, play the role of support or guiding from four vertex of rectangular flat respectively.
Connecting pole 113 runs through middle plate 54, and limition orientation is carried out to connecting pole 113 by middle plate 54;Top plate 111 is in top plate 53
It is moved up and down in 54 limited range of middle plate, lower plywood 112 moves up and down between middle plate 54 and pedestal 55.
Vertical location apparatus 3 drives rotation by the motor 6 being set on top plate 53, and motor 6 passes through control unit
The location of control operation namely position limit device 1 are by Electronic control, and without human intervention, location is more
Precisely,
Preferably, vertical motion device 4 is hydraulic cylinder, and the collapsing length of hydraulic cylinder can be adjusted correspondingly as needed
Section can make air bag compression one third, half etc., compressive state adjusts quick to simulate different compressive states
It is easy.
The present invention also provides a kind of air bag method for testing fatigue, preset the top of vertical location apparatus 3 and erect
It is a to the spacing of 4 lowermost end of vibrating device, the top of vertical location apparatus 3 is b with the spacing on 1 top of position limit device, is erected
It is c to the spacing of 4 lowermost end of vibrating device and 2 bottom end of lower caging device, the height of position limit device 1 is d, lower caging device 2
Height be e, air bag compression before height be f, the compressed height of air bag be g;After the molding of rack 5, tri- numbers of a, d, e
Value is determined, therefore a, d, e are constant;Air bag has different model standards, what the size of each model was to determine, therefore
F is preset value, and when experiment selects corresponding size value;For hydraulic cylinder, according to the difference of retracted position, it can make
Lower caging device 2 is in different height, therefore c is adjustable value, once setting c is constant, is set before experiment every time
The position of lower caging device 2 is all returned to initial position as original state after moving up compression every time.
This method includes following procedure:Control unit is calculated as follows:
B=a-c-d-e-f;According to this formula calculate position limit device 1 test when the location of.
Maximum displacement=c+f-g that lower caging device moves up;Lower caging device 2 is calculated from initial according to this formula
The distance that position moves up.
Position limit device 1 and lower caging device 2 are adjusted to corresponding position by control unit according to result of calculation.
By above-mentioned calculation formula, every time to control unit input data when, it is only necessary to input certain several specific numerical value
, without being all manually entered, remaining numerical value is calculated by control unit, avoids the feelings for being manually entered mistake
Condition.
Further, whether control unit analysis input data is reasonable, starts test if rationally, if otherwise sending out police
Report;Judge whether that rational process carries out as follows:
Lower caging device upper limit position-lower caging device lower limit position < f-g;Namely it is compressed with what is once stretched
Cheng Zhong, the difference between the maximum displacement that lower caging device 2 moves up and the maximum displacement moved up should be less than air bag
Height before being compressed and compressed height.
Position limit device limit inferior+lower caging device limes superiors<In the maximum distance-of position limit device and lower caging device
Height after limiting device height-lower caging device height-air bag compression.
Lower limit position=a-c-d-e-N of position limit device;Wherein N is reserved margin, and margin value is according to actual conditions
N is a changeless numerical value when making corresponding adjustment, but testing every time;Determine position limit device 1 to moving down according to this formula
Dynamic maximum displacement avoids the excessive generation of the distance that position limit device 1 moves down from hitting.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, this hair
It is bright to be not intended to be limited to the embodiments shown herein, and be to fit to and the principles and novel features disclosed herein phase
Consistent widest range.
Claims (9)
1. a kind of air bag fatigue test device, which is characterized in that including position limit device (1) and lower caging device (2), it is described on
Limiting device (1) connects vertical location apparatus (3), and the position limit device (1) is perpendicular by the vertical location apparatus (3) band action
To movement, and is positioned and fixed in corresponding position according to the size of air bag;The lower caging device (2) connects vertical motion device
(4), the vertical motion device (4) drives the lower caging device (2) to move back and forth compressing gasbag in vertical direction;It is described perpendicular
It is fixedly installed in respectively in rack (5) to positioning device (3) and the vertical motion device (4).
2. air bag fatigue test device according to claim 1, which is characterized in that the position limit device (1) includes phase
Mutual fixed cope plate (11) and upper fixed seat (12), the cope plate (11) is connected to the vertical location apparatus (3), described
Upper fixed seat (12) bottom is in the spherical surface being adapted with bladder shape;
The lower caging device (2) includes the lower template (21) being fixed to each other and lower fixed seat (22), and the lower template (21) is even
It is connected to the vertical motion device (4), is in the spherical surface being adapted with bladder shape at the top of the lower fixed seat (22).
3. air bag fatigue test device according to claim 2, which is characterized in that the vertical location apparatus (3)
For leading screw, the cope plate (11) includes the intermediate top plate (111) for being equipped with gap and lower plywood (112), the top plate
(111) coordinate with threads of lead screw, fixed seat (12) is fixedly mounted in the lower plywood (112);The top plate (111) with
It is connected and fixed by vertically arranged connecting pole (113) between the lower plywood (112).
4. air bag fatigue test device according to claim 3, which is characterized in that the rack (5) includes the first guiding
Column (51), the second guide post (52), top plate (53), middle plate (54) and pedestal (55), first guide post (51) are fixed on institute
It states between top plate (53) and the middle plate (54), second guide post (52) is fixed on the middle plate (54) and the pedestal
(55) between, the connecting pole (113) runs through the middle plate (54);
The top plate (111) passes through described second by the first guide post (51) limition orientation, the lower plywood (112)
Guide post (52) limition orientation.
5. air bag fatigue test device according to claim 4, which is characterized in that the lower template (21) passes through described
Two guide posts (52) limition orientation.
6. air bag fatigue test device according to claim 4, which is characterized in that the vertical location apparatus (3) passes through
Motor (6) the driving rotation being set on the top plate (53);The motor (6) is controlled by control unit and is run.
7. air bag fatigue test device according to claim 2, which is characterized in that the vertical motion device (4) is liquid
Compressing cylinder.
8. a kind of air bag method for testing fatigue, which is characterized in that including:
The top of vertical location apparatus (3) and the spacing of vertical motion device (4) lowermost end are set as a, the vertical positioning
The top of device (3) is b, vertical motion device (4) lowermost end and lower limit with the spacing on position limit device (1) top
The spacing of device (2) bottom end is c, and the height of the position limit device (1) is d, and the height of the lower caging device (2) is e, gas
Height before bag pressure contracting is f, and the compressed height of air bag is g;
Wherein a, d, e are constant, and f is preset value, and c is adjustable value;
Control unit is calculated as follows:
B=a-c-d-e-f;
Maximum displacement=c+f-g that the lower caging device moves up;
The position limit device (1) and the lower caging device (2) are adjusted to by described control unit according to the result of calculation
Corresponding position.
9. air bag method for testing fatigue according to claim 8, which is characterized in that described control unit analyzes input data
Whether rationally, start test if rationally, if otherwise sending out alarm;Deterministic process carries out as follows:
Lower caging device upper limit position-lower caging device lower limit position < f-g;
Position limit device limit inferior+lower caging device limes superiors<Maximum distance-upper limit of position limit device and lower caging device
Height after device height-lower caging device height-air bag compression;
Lower limit position=a-c-d-e-N of the position limit device;
Wherein N is reserved margin.
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Cited By (1)
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CN116990165A (en) * | 2023-09-26 | 2023-11-03 | 武汉捷沃汽车零部件有限公司 | Automobile damping rubber fatigue test device and test method |
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CN116990165B (en) * | 2023-09-26 | 2023-12-26 | 武汉捷沃汽车零部件有限公司 | Automobile damping rubber fatigue test device and test method |
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