CN110296820A - A kind of longitudinal composite material plate spring performance testing device and test method - Google Patents
A kind of longitudinal composite material plate spring performance testing device and test method Download PDFInfo
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- CN110296820A CN110296820A CN201910476395.5A CN201910476395A CN110296820A CN 110296820 A CN110296820 A CN 110296820A CN 201910476395 A CN201910476395 A CN 201910476395A CN 110296820 A CN110296820 A CN 110296820A
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- G—PHYSICS
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- 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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Abstract
The invention discloses a kind of longitudinal composite material plate spring performance testing device and test methods.Longitudinal composite material plate spring performance testing device of the invention includes: pedestal, and two sides are symmetrically arranged with a pair of guide rails on the pedestal；A pair of sliders, the sliding part are located on the guide rail of two sides, and can opposite rail sliding；The both ends of leaf spring to be tested, the leaf spring to be tested are separately fixed on the sliding part of two sides；Loading device, the middle part for turning to loading device and leaf spring to be tested being set are turned to, load loading system is treated test leaf spring by steering loading device in different directions and tested.Test device of the invention can be realized to the comprehensive test of fatigue behaviour in composite material plate spring thickness, length and width direction, the more realistically situation of reflection composite material plate spring load suffered in vehicle travel process, obtains more reliable composite material plate spring fatigue life data.
Description
Technical field
The present invention relates to leaf spring detection technique field, it is related to a kind of longitudinal composite material plate spring performance testing device and test
Method.
Background technique
As global energy is in short supply and problem of environmental pollution increasingly highlights, carrying out light-weight technologg to automobile seems especially
It is important.If some researches show that vehicle complete vehicle weight to reduce by 10%, 6%-8% is can be improved in fuel efficiency, efficiently reduces two
Aoxidize carbon emission.In automobile components, the weight loss effect of composite material plate spring is prominent, horizontal compared with traditional steel leaf spring
Set flat spring loss of weight 78% or so, light-duty longitudinal flat spring loss of weight 63% or so, heavy longitudinal flat spring loss of weight 66%~70%
Left and right.In addition, the fatigue behaviour of composite material plate spring can reach 2~10 times of steel plate leaf spring.It can be seen that composite panel
Spring has broad application prospects in auto industry field.
In the process of moving, leaf spring motion state experienced under different road conditions would also vary from automobile.It is rising and falling
Jump, downward motion can be generated under road condition, i.e. leaf spring is acted on by the load on thickness direction；Accelerate and brake,
In moderating process extruding can be generated to leaf spring length direction；In addition, in the width direction that leaf spring then will receive in motor turning
Roll force.Conventional steel plates spring fatigue test method is to obtain the rigidity of leaf spring by the displacement and load of vertical direction mostly
And the fatigue life under the effect of vertical circulation load, as this testing fatigue mode reliability of isotropic steel leaf spring
Still.It is to be caused by lamination hot pressing, RTM molding or Wrapping formed realization since it is mostly so for composite material plate spring
The anisotropy of composite material plate spring in all directions, and interlaminar shear strength is not also high.Obviously, the fatigue of conventional steel plates spring
Test mode has not been suitable for the fatigue behaviour evaluation of composite material plate spring, it is difficult to prejudge whether composite material plate spring can satisfy
The requirement of vehicle.
Application No. is 201610655823.7 Chinese patents to disclose a kind of longitudinal composite material plate spring performance survey of automobile
Trial assembly is set, but the testing fatigue being confined in composite material plate spring vertical direction, and cannot detect the performance on other directions.
Therefore, it is necessary to develop the special equipment for being suitable for composite material plate spring and carrying out fatigue property test comprehensively.
Composite material plate spring while the car is driving due to road conditions difference, suffered by power it is also different.It is rising
Jump can be generated under volt road condition, is pushed, i.e., composite material plate spring is acted on by the load on thickness direction；Accelerate and
In braking, moderating process extruding can be generated to leaf spring length direction；In addition, the width side that leaf spring then will receive in motor turning
Upward roll force.And existing leaf spring or composite panel leaf spring only do simple bearing up-down force fatigue bench test, examine
Consider the anisotropy feature of composite material plate spring itself, it is necessary to carry out again to the fatigue testing equipment of composite material plate spring
Design, to realize to the comprehensive test of fatigue behaviour in composite material plate spring thickness, length and width direction, more really
Ground reflects the situation of composite material plate spring load suffered in vehicle travel process, obtains more reliable composite material plate spring
Fatigue life data.
In view of this, the present invention is specifically proposed.
Summary of the invention
The technical problem to be solved in the present invention is that overcoming the deficiencies of the prior art and provide a kind of longitudinal composite material plate spring
Performance testing device and test method.Test device of the invention can be realized to composite material plate spring thickness, length and width
The comprehensive test of fatigue behaviour on direction is spent, more realistically reflects that composite material plate spring is suffered in vehicle travel process
The situation of load obtains more reliable composite material plate spring fatigue life data.
In order to solve the above technical problems, the present invention is using the basic conception of technical solution:
The first object of the present invention is to provide a kind of longitudinal composite material plate spring performance testing device, comprising:
Pedestal, two sides are symmetrically arranged with a pair of guide rails on the pedestal；
A pair of sliders, the sliding part are located on the guide rail of two sides, and can opposite rail sliding；
The both ends of leaf spring to be tested, the leaf spring to be tested are separately fixed on the sliding part of two sides；
Loading device is turned to, the steering loading device is arranged on leaf spring to be tested, and load loading system passes through steering
Loading device is treated test leaf spring in different directions and is tested.
Further embodiment, the steering loading device includes fixing piece and tumbler, and the fixing piece is fixedly connected
At the middle part of leaf spring to be tested, the tumbler is connected on fixing piece, and can opposed fixed member rotation.
Further embodiment, the tumbler include the first tumbler and the second tumbler, first tumbler and solid
Determine part connection, and can be rotated around the axis parallel with the central axis of leaf spring to be tested；Second tumbler and the first tumbler
Connection, and can be rotated around with the axis of the central axis of leaf spring to be tested.
Further embodiment, first tumbler are to turn to flange, and the steering flange is horizontally set on fixation
Part top, and clockwise and/or rotated counterclockwise around the central axis of leaf spring to be tested edge；
Preferably, the angle that the steering flange rotates every time is 90 degree.
Further embodiment, second tumbler include load output rod, and the load output rod includes first
One end of output rod and the second output rod, first output rod is fixedly connected with the first tumbler, the other end and the second output
Bar rotation connection；Second output rod is surrounded with the axis of the central axis of leaf spring to be tested along clockwise and/or counterclockwise
Direction rotates；
Preferably, first output rod is vertically arranged with flange is turned to；
Preferably, second tumbler further includes output rod fixing piece, and it is defeated that the output rod fixing piece is mounted on first
The junction of rod and the second output rod, with both fixed relative position；
Preferably, the end of second output rod freely extended is equipped with load(ing) point, and the load(ing) point and load load
System docking, it is preferred that the diameter of the load(ing) point is greater than the diameter of the second output rod.
Further embodiment, the pedestal are equipped with the fixed device of the first pedestal, will by the fixed device of the first pedestal
The pedestal side parallel with leaf spring length direction to be tested is fixed with horizontal plane；
Preferably, the fixed device of the first pedestal includes the first pedestal fixation hole and the first pedestal fixing piece, and the first pedestal is solid
Determine hole to be arranged on the pedestal side parallel with leaf spring length direction to be tested, the first pedestal fixing piece passes through the first pedestal and fixes
Hole is fixed with horizontal plane.
Further embodiment, the pedestal are equipped with the fixed device of the second pedestal, will by the fixed device of the second pedestal
The pedestal side parallel with leaf spring wide direction to be tested is fixed with horizontal plane；
Preferably, the fixed device of the second pedestal includes the second pedestal fixation hole and the second pedestal fixing piece, and the second pedestal is solid
Determine hole to be arranged on the pedestal side parallel with leaf spring width direction to be tested, the second pedestal fixing piece passes through the second pedestal and fixes
Hole is fixed with horizontal plane.
The second object of the present invention is to provide longitudinal compound described in one kind any one scheme as above or assembled scheme
The test method of material leaf spring performance testing device, the load loading system are docked with the steering loading device, pass through tune
Turn over to the rotation angle of loading device and/or the relative position in direction, pedestal and horizontal plane, leaf spring to be tested length,
Test leaf spring is treated on the direction of width and thickness respectively to be tested for the property；
Preferably, it adjusts first output rod and the second output rod is each perpendicular to turn to flange and fixation, the pedestal
Horizontal positioned, load is docked and applied to load loading system with the second output boom end, on the thickness direction of leaf spring to be tested
It is tested.
Further embodiment, for first output rod perpendicular to flange is turned to, the second output rod of adjustment and steering flange are flat
It is capable and consistent with the length direction of leaf spring to be tested and fixed；Adjust pedestal, make on the length direction of pedestal with horizontal plane,
And it is fixed using the fixed device of the second pedestal；Load loading system is tested on the length direction of leaf spring to be tested.
Further embodiment, for first output rod perpendicular to flange is turned to, the second output rod of adjustment and steering flange are flat
It goes and fixes, rotation turns to flange, keeps the second output rod consistent with the width direction of leaf spring to be tested；Pedestal is adjusted, pedestal is made
Width direction on horizontal plane, and fixed using the fixed device of the first pedestal；Load loading system is in leaf spring to be tested
Width direction on tested.
After adopting the above technical scheme, compared with the prior art, the invention has the following beneficial effects:
1, a kind of longitudinal composite material plate spring fatigue property test device provided by the invention may be implemented in composite panel
Load test in spring thickness, length and width direction applies cyclic loading to composite material plate spring, and changes frequency and carry out mould
Quasi- composite material, can more accurately analog composite material leaf spring power suffered in practical entrucking operating condition, have preferable
Fatigue life reliability.
2, a kind of longitudinal composite material plate spring fatigue property test device provided by the invention can cooperate traditional steel plate
Spring testing fatigue rack uses, on the basis of original testboard bay, by adjusting composite material plate spring fatigue property test dress
The mounting means of load output rod, steering flange and pedestal in setting, realizes the fatigue property test on different directions, can operate
Property it is strong, implement simple, and equipment cost can be saved.
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
Attached drawing is as a part of the invention, and for providing further understanding of the invention, of the invention is schematic
Examples and descriptions thereof are used to explain the present invention, but does not constitute an undue limitation on the present invention.Obviously, the accompanying drawings in the following description
Only some embodiments to those skilled in the art without creative efforts, can be with
Other accompanying drawings can also be obtained according to these attached drawings.In the accompanying drawings:
Fig. 1 show the side structure schematic diagram of composite material plate spring thickness direction fatigue test device.
Fig. 2 show the schematic perspective view of composite material plate spring thickness direction fatigue test device.
Fig. 3 show the side structure schematic diagram of composite material plate spring length direction fatigue test device.
Fig. 4 show the schematic perspective view of composite material plate spring length direction fatigue test device.
Fig. 5 show the side structure schematic diagram of composite material plate spring width direction fatigue test device.
Fig. 6 show the schematic perspective view of composite material plate spring width direction fatigue test device.
In figure: 1 pedestal, 2 upper rails, 3 lower guideways, 4 coasters, 5 wheels, 6 leaf springs to be tested, 7 fixing pieces, 8 turn to flange,
9 load output rods, 10 first output rods, 11 second output rods, 12 output rod fixing pieces, 13 load(ing) points, 14 first pedestals are fixed
Device, the fixed device of 15 second pedestals, 16 lifting lug connecting pins, 17 coaster fixing bolts.
It should be noted that these attached drawings and verbal description are not intended to the design model limiting the invention in any way
It encloses, but illustrates idea of the invention by referring to specific embodiments for those skilled in the art.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in embodiment is clearly and completely described, the following examples are intended to illustrate the invention, but
It is not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
A kind of longitudinal composite material plate spring performance testing device provided by the invention, comprising:
Pedestal 1, two sides are symmetrically arranged with a pair of guide rails on the pedestal 1；
A pair of sliders, the sliding part are located on the guide rail of two sides, and can opposite rail sliding；
The both ends of leaf spring 6 to be tested, the leaf spring 6 to be tested are separately fixed on the sliding part of two sides；
Loading device is turned to, the steering loading device is arranged on leaf spring 6 to be tested, and load loading system passes through steering
Loading device is treated test leaf spring 6 in different directions and is tested.
The two sides of pedestal 1 are symmetrically arranged with a pair of guide rails, and each guide rail includes upper rail 2 and lower guideway 3.Sliding part can
Think coaster 4 or other can sliding opposite with guide rail structure, the lower part of coaster 4 has wheel 5.Upper rail 2 is led under
Rail 3 be groove design, the wheel 5 of coaster 4 can be limited in upper rail 2 and lower guideway 3, coaster 4 can also arbitrarily remove and
It puts on guide rail.The grasswort at composite material plate spring both ends to be tested can be installed in corresponding coaster 4, and can pass through lifting lug
Connecting pin 16 is fixed.
The longitudinal composite material plate spring performance testing device of this programme further includes turning to loading device, is added by adjusting to turn to
The direction set is carried, cooperation changes the installation site of pedestal 1, can be realized to composite material plate spring thickness, length and width
The comprehensive test of fatigue behaviour on direction more realistically reflects composite material plate spring load suffered in vehicle travel process
The situation of lotus obtains more reliable composite material plate spring fatigue life data.
The steering loading device includes fixing piece 7 and tumbler, and the fixing piece 7 is fixedly connected on leaf spring to be tested
6 middle part, the tumbler are connected on fixing piece 7, and can the rotation of opposed fixed member 7.
Fixing piece 7 is the fixed device of leaf spring, is specifically as follows leaf spring strap, is fixed in leaf spring to be tested
Portion.Leaf spring strap includes upper clamp plate and lower clamp plate, and upper clamp plate and lower clamp plate are fixed by leaf spring fixing bolt.It turns to
Part is connected on fixing piece 7, and can opposed fixed member 7 rotate, so can be realized load loading system in different directions
On exert a force to tumbler, and then be transmitted on leaf spring 6 to be tested, treat in thickness, length and the width direction of test leaf spring 6
Fatigue behaviour can carry out comprehensive test.
Wherein, the tumbler includes the first tumbler and the second tumbler, and first tumbler and fixing piece 7 connect
It connects, and can be rotated around the axis parallel with the central axis of leaf spring 6 to be tested；Second tumbler is connect with the first tumbler,
And it can be rotated around with the axis of the central axis of leaf spring 6 to be tested.
Referring to Fig.1, first tumbler is to turn to flange 8, and the steering flange 8 is horizontally set on fixing piece 7
Top, and clockwise and/or rotated counterclockwise around the central axis of leaf spring to be tested edge.Preferably, the steering method
The angle that orchid 8 rotates every time is 90 degree.
Second tumbler includes load output rod 9, and the load output rod 9 includes the first output rod 10 and the
One end of two output rods 11, first output rod 10 is fixedly connected with the first tumbler, and the other end and the second output rod 11 revolve
Turn connection；Second output rod 11 is surrounded with the axis of the central axis of leaf spring 6 to be tested along clockwise and/or square counterclockwise
To rotation 0-90 degree；First output rod 10 is vertically arranged with flange 8 is turned to.
Second tumbler further includes output rod fixing piece 12, and the output rod fixing piece 12 is mounted on the first output rod
10 and second output rod 11 junction, with both fixed relative position.Output rod fixing piece 12 can be fixed for output rod
Screw.Therefore it may also be said that the second output rod 11 of load output rod 9 can be using output rod fixing screws as axis, the clockwise, inverse time
Needle respectively rotates 0-90 degree.
Therefore, turn to flange 8 realize entire tumbler in the horizontal direction in rotation, and can simultaneously with dynamic loading
The rotation that output rod 9 synchronizes.And the first output rod 10 and the second output rod 11 of load output rod 9 can be opposite vertical
It in direction, is rotated around trunnion axis, so that the direction and leaf spring 6 to be tested for realizing the second output rod 11 can be adjusted
Length direction is consistent, can also adjust and realize that the direction of the second output rod 11 is consistent with the width direction of leaf spring 6 to be tested, favorably
After load loading system is docked with the second output rod 11, applied on the length direction of leaf spring 6 to be tested and width direction
Power detection.
In order to achieve the effect that preferably to dock force detection, the end of second output rod 11 freely extended is equipped with
Load(ing) point 13, the load(ing) point 13 are docked with load loading system, preferred scheme, and the diameter of the load(ing) point 13 is greater than second
The diameter of output rod 11.
In the present solution, the installation site of pedestal 1 can be according to the different test requests of composite material plate spring in different directions
And change, four sides of pedestal 1 can be fixed.In order to which the pedestal 1 to different modes of emplacement is fixed, on pedestal 1
Multiple fixing devices are set, and to be fixed at various locations, concrete mode includes:
The pedestal 1 is equipped with the fixed device 14 of the first pedestal, by the fixed device 14 of the first pedestal by pedestal 1 with to
The parallel side of test 6 length direction of leaf spring is fixed with horizontal plane；
As a preferred embodiment, the fixed device 14 of the first pedestal includes the first pedestal fixation hole and the first pedestal
Fixing piece, the first pedestal fixation hole are arranged on the side parallel with 6 length direction of leaf spring to be tested of pedestal 1, and the first pedestal is solid
Determine part to fix across the first pedestal fixation hole with horizontal plane.
The pedestal 1 is equipped with the fixed device of the second pedestal, by the fixed device of the second pedestal by pedestal 1 with it is to be tested
The parallel side of 6 width direction of leaf spring is fixed with horizontal plane；
As a preferred embodiment, the fixed device of the second pedestal includes that the second pedestal fixation hole and the second pedestal are solid
Determine part, the second pedestal fixation hole is arranged on the side parallel with 6 width direction of leaf spring to be tested of pedestal 1, and the second pedestal is fixed
Part passes through the second pedestal fixation hole and fixes with horizontal plane.
The test device of this programme can be on same pedestal 1, through second output rod 11 for changing load output rod 9
The relative position of state, the angle for turning to flange 8 and pedestal 1 is to realize fatigue of the composite material plate spring under different road conditions
Test.
When not rotated to the second output rod 11, with output rod fixing screws by the first output rod 10 and the second output rod
11 are fixed, and keep the second output rod 11 vertical with flange 8 is turned to, finally adjust the placement location of pedestal 1, make composite panel
For spring in the longitudinal direction horizontal by being placed in parallel, adjustment position carries out load(ing) point 13 and servo-hydraulic drive system pair
It connects, as shown in Figure 1.It carries out loading again later and starts to apply load by the second output rod 11, it so can be to composite material
Fatigue behaviour on leaf spring thickness direction is tested.
After the second output rod 11 is rotated by 90 °, with output rod fixing screws by the first output rod 10 and the second output rod 11
It is fixed, then rotates and turn to flange 8, keep the second output rod 11 parallel with the length direction of composite material plate spring, finally adjust
The placement location of pedestal 1 makes composite material plate spring in the longitudinal direction horizontal by being disposed vertically, and adjustment position makes load(ing) point
13 are docked with servo-hydraulic drive system, and (length direction is tired using the second pedestal fixation hole and the second pedestal fixing piece
When labor is tested) pedestal 1 is fixed, as shown in Figure 3.In addition, by coaster is used with the coaster 4 for applying loading direction one end in the same direction
Fixing bolt 17 is fixed, carries out loading later again and starts to apply load by the second output rod 11, so can be to composite wood
Fatigue behaviour on flitch spring length direction is tested.
After the second output rod 11 is rotated by 90 °, with output rod fixing screws by the first output rod 10 and the second output rod 11
It is fixed, then rotates and turn to flange 8, keep the second output rod 11 parallel with the width direction of composite material plate spring, finally adjust
The placement location of pedestal 1 places composite material plate spring with horizontal plane in the direction of the width, and adjustment position makes load(ing) point 13
It is docked with servo-hydraulic drive system, and utilizes the first pedestal fixation hole and the first pedestal fixing piece (width direction fatigue
When test) pedestal 1 is fixed, as shown in Figure 5.In addition, the coaster fixing bolt 17 of coaster 4 at both ends is fixed,
It carries out loading again later and starts to apply load by the second output rod 11, it so can be in composite material plate spring width direction
Fatigue behaviour tested.
In addition, the present invention also provides longitudinal composite panels described in a kind of as above any one scheme or assembled scheme
The test method of spring performance testing device specifically includes as follows:
The load loading system is docked with the steering loading device, by adjusting the rotation angle for turning to loading device
And/or the relative position in direction, pedestal 1 and horizontal plane, divide on the direction of the length of leaf spring 6 to be tested, width and thickness
Test leaf spring 6 is not treated to be tested for the property, and can be realized to tired in composite material plate spring thickness, length and width direction
The comprehensive test of labor performance more realistically reflects the situation of composite material plate spring load suffered in vehicle travel process,
Obtain more reliable composite material plate spring fatigue life data.
Specifically, test case and method include following several:
Situation 1, when analog composite material leaf spring generates the fatigue behaviour of jump, downward motion under fluctuating road condition
When, since composite material plate spring is mainly by the load effect on thickness direction, the thickness direction for applying continuous circulation is needed at this time
Power.
Testing procedure are as follows:
It adjusts first output rod 10 and the second output rod 11 is each perpendicular to turn to flange 8 and fixed, 1 water of pedestal
Load is docked and applied to placing flat, load loading system with 11 end of the second output rod, on the thickness direction of leaf spring 6 to be tested
It is tested, as shown in Figure 1.
Specifically, two coasters 4 are packed between upper rail 2 and lower guideway 3, coaster 4 can be in upper rail 2 and lower guideway
It is free to slide between 3.Composite material plate spring both ends to be tested grasswort is installed in corresponding coaster 4, lifting lug can be not required at this time
Connecting pin 16 is fixed；By the central part of composite material plate spring to be tested fixed by the fixed device of leaf spring and with steering
Flange 8 connects, and the second output rod 11 for turning to 8 top of flange is installed perpendicular to 8 direction of flange is turned to, and solid with output rod
Determine screw to be fixed；1 horizontal direction of pedestal is placed, and can carry out loading and starting to apply by the second output rod 11 later carrying
Lotus.
Test load range is 0.7 times of fully loaded load of -1.9 times of fully loaded load, frequency range 0.1-3Hz at this time.Fatigue
In test process with regard to the moment observe composite material plate spring situation, if composite material plate spring it is cracked, layering or fracture situations such as,
It can stop testing, while record its cycle-index, as the fatigue life of composite material plate spring.
Situation 2, when analog composite material leaf spring accelerate and brake, fatigue behaviour in moderating process when, due to multiple
Condensation material leaf spring needs the length direction power for applying continuous circulation mainly by the load effect on its length direction at this time.
Testing procedure are as follows:
First output rod 10 perpendicular to turn to flange 8, adjustment the second output rod 11 with steering flange 8 it is parallel and with to
The length direction for testing leaf spring 6 is consistent and fixed；Adjust pedestal 1, make on the length direction of pedestal 1 with horizontal plane, and benefit
Device is fixed with the second pedestal to fix；Load loading system is tested on the length direction of leaf spring 6 to be tested.
Specifically, two coasters 4 are packed between upper rail 2 and lower guideway 3, coaster 4 can be in upper rail 2 and lower guideway
It is free to slide between 3.It will be fixed with the coaster fixing bolt 17 of coaster 4 for applying loading direction one end in the same direction；It will be to be tested multiple
Condensation material leaf spring both ends grasswort is installed in corresponding coaster 4, and is fixed with lifting lug connecting pin 16；It will be to be tested compound
The central part of material leaf spring is fixed by the fixed device of leaf spring and is connect with flange 8 is turned to, and turn to 8 top of flange second is defeated
The direction that the steering of rod 11 is parallel to steering flange 8 is installed, and is fixed with output rod fixing screws；Pedestal 1 is adjusted,
Make to place on the length direction of pedestal 1 with horizontal plane, and utilizes the second pedestal fixation hole and the second pedestal fixing piece (length
When the testing fatigue of direction) pedestal 1 is fixed, as shown in Figure 3.It is slided being used with the coaster 4 for applying loading direction one end in the same direction
Vehicle fixing bolt 17 is fixed；It can carry out loading later and start to apply load by the second output rod 11.
Test load range is 0.7 times of fully loaded load of -1.9 times of fully loaded load, frequency range 0.1-3Hz at this time.Fatigue
In test process with regard to the moment observe composite material plate spring situation, if composite material plate spring it is cracked, layering or fracture situations such as,
It can stop testing, while record its cycle-index, as the fatigue life of composite material plate spring.
Situation 3, when fatigue behaviour when analog composite material leaf spring is in motor turning by roll force, due to composite wood
Flitch spring needs the width direction power for applying continuous circulation mainly by the load effect in width direction at this time.
Testing procedure are as follows:
For first output rod 10 perpendicular to flange 8 is turned to, the second output rod 11 of adjustment is parallel with flange 8 is turned to and solid
Fixed, rotation turns to flange 8, keeps the second output rod 11 consistent with the width direction of leaf spring 6 to be tested；Pedestal 1 is adjusted, pedestal 1 is made
Width direction on horizontal plane, and it is fixed using the fixed device 14 of the first pedestal；Load loading system is in test plate (panel) to be measured
It is tested in the width direction of spring 6.
Specifically, two coasters 4 are packed between upper rail 2 and lower guideway 3, coaster 4 can be in upper rail 2 and lower guideway
It is free to slide between 3.Composite material plate spring both ends to be tested grasswort is installed in corresponding coaster 4, and with lifting lug connecting pin
Nail 16 is fixed；By the central part of composite material plate spring to be tested fixed by the fixed device of leaf spring and with turn to flange 8
Connection, the direction that the second output rod 11 steering at 8 top of steering flange is parallel to steering flange 8 is installed, and uses output rod
Fixing screws are fixed；Adjustment turns to flange 8 and is rotated by 90 ° and fixes；Adjust pedestal 1, make pedestal 1 in the direction of the width with
Horizontal plane is placed, and makes the second output rod 11 at this time perpendicular to horizontal plane, and utilize the first pedestal fixation hole and the first base
Pedestal 1 is fixed seat fixing piece (when width direction testing fatigue), as shown in Figure 5.The coaster 4 at both ends is fixed with coaster
Bolt 17 is fixed；It can carry out loading later and start to apply load by the second output rod 11.
Test load range is 0.7 times of fully loaded load of -1.9 times of fully loaded load, frequency range 0.1-3Hz at this time.Fatigue
In test process with regard to the moment observe composite material plate spring situation, if composite material plate spring it is cracked, layering or fracture situations such as,
It can stop testing, while record its cycle-index, as the fatigue life of composite material plate spring.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within the present invention program.
Claims (10)
1. a kind of longitudinal composite material plate spring performance testing device characterized by comprising
Pedestal, two sides are symmetrically arranged with a pair of guide rails on the pedestal；
A pair of sliders, the sliding part are located on the guide rail of two sides, and can opposite rail sliding；
The both ends of leaf spring to be tested, the leaf spring to be tested are separately fixed on the sliding part of two sides；
Loading device is turned to, the steering loading device is arranged on leaf spring to be tested, and load loading system is by turning to load
Device is treated test leaf spring in different directions and is tested.
2. a kind of longitudinal composite material plate spring performance testing device according to claim 1, which is characterized in that the steering
Loading device includes fixing piece and tumbler, and the fixing piece is fixedly connected on the middle part of leaf spring to be tested, the tumbler
It is connected on fixing piece, and can opposed fixed member rotation.
3. a kind of longitudinal composite material plate spring performance testing device according to claim 2, which is characterized in that the steering
Part includes the first tumbler and the second tumbler, and first tumbler is connect with fixing piece, and can be surrounded and leaf spring to be tested
Central axis it is parallel axis rotation；Second tumbler is connect with the first tumbler, and can around in leaf spring to be tested
The vertical axis rotation of mandrel.
4. a kind of longitudinal composite material plate spring performance testing device according to claim 3, which is characterized in that described
One tumbler is to turn to flange, and the steering flange is horizontally set on fixing piece top, and surrounds the center of leaf spring to be tested
Axis edge is clockwise and/or rotates counterclockwise；
Preferably, the angle that the steering flange rotates every time is 90 degree.
5. a kind of longitudinal composite material plate spring performance testing device according to claim 3 or 4, which is characterized in that described
The second tumbler include load output rod, the load output rod includes the first output rod and the second output rod, described the
One end of one output rod is fixedly connected with the first tumbler, and the other end and the rotation of the second output rod connect；Second output rod
Around the central axis with leaf spring to be tested axis along clockwise and/or rotate counterclockwise；
Preferably, first output rod is vertically arranged with flange is turned to；
Preferably, second tumbler further includes output rod fixing piece, and the output rod fixing piece is mounted on the first output rod
With the junction of the second output rod, with both fixed relative position；
Preferably, the end of second output rod freely extended is equipped with load(ing) point, the load(ing) point and load loading system
Docking, it is furthermore preferred that the diameter of the load(ing) point is greater than the diameter of the second output rod.
6. a kind of longitudinal composite material plate spring performance testing device, feature described in -5 any one exist according to claim 1
In the pedestal is equipped with the fixed device of the first pedestal, by the first pedestal fixed device that pedestal and leaf spring to be tested is long
The parallel side in degree direction is fixed with horizontal plane；
Preferably, the fixed device of the first pedestal includes the first pedestal fixation hole and the first pedestal fixing piece, the first pedestal fixation hole
Be arranged on the pedestal side parallel with leaf spring length direction to be tested, the first pedestal fixing piece pass through the first pedestal fixation hole with
Horizontal plane is fixed.
7. a kind of longitudinal composite material plate spring performance testing device, feature described in -6 any one exist according to claim 1
In the pedestal is equipped with the fixed device of the second pedestal, by the second pedestal fixed device that pedestal and leaf spring to be tested is wide
The parallel side in degree direction is fixed with horizontal plane；
Preferably, the fixed device of the second pedestal includes the second pedestal fixation hole and the second pedestal fixing piece, the second pedestal fixation hole
Be arranged on the pedestal side parallel with leaf spring width direction to be tested, the second pedestal fixing piece pass through the second pedestal fixation hole with
Horizontal plane is fixed.
8. a kind of test method of the longitudinal composite material plate spring performance testing device as described in claim 1-7 any one,
It is characterized in that, the load loading system is docked with the steering loading device, by adjusting the rotation for turning to loading device
The relative position in angle and/or direction, pedestal and horizontal plane, on the direction of the length of leaf spring to be tested, width and thickness
Test leaf spring is treated respectively to be tested for the property；
Preferably, it adjusts first output rod and the second output rod is each perpendicular to turn to flange and fixation, the pedestal is horizontal
It places, load is docked and applied to load loading system with the second output boom end, carries out on the thickness direction of leaf spring to be tested
Test.
9. test method according to claim 8, which is characterized in that first output rod is adjusted perpendicular to flange is turned to
Whole second output rod is with steering parallel flange and consistent and fixed with the length direction of leaf spring to be tested；Pedestal is adjusted, pedestal is made
Length direction on horizontal plane, and fixed using the fixed device of the second pedestal；Load loading system is in leaf spring to be tested
Length direction on tested.
10. test method according to claim 8 or claim 9, which is characterized in that first output rod is perpendicular to the method for steering
Orchid adjusts the second output rod and turns to parallel flange and fixation, and rotation turns to flange, makes the second output rod and leaf spring to be tested
Width direction is consistent；Pedestal is adjusted, is made with horizontal plane in the width direction of pedestal, and it is solid using the fixed device of the first pedestal
It is fixed；Load loading system is tested in the width direction of leaf spring to be tested.
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| CN201910476395.5A CN110296820A (en) | 2019-06-03 | 2019-06-03 | A kind of longitudinal composite material plate spring performance testing device and test method |
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| CN112067274A (en) * | 2020-09-18 | 2020-12-11 | 中国纺织科学研究院有限公司 | Device and method for testing salt spray fatigue resistance of longitudinally-arranged composite plate spring |
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| CN112268821A (en) * | 2020-09-18 | 2021-01-26 | 中国纺织科学研究院有限公司 | Device and method for testing temperature resistance and fatigue performance of longitudinally-arranged composite plate spring |
| CN114046948A (en) * | 2021-10-18 | 2022-02-15 | 东风汽车底盘系统有限公司 | Device and method for testing dynamic stiffness of steel plate spring |
| CN114166533A (en) * | 2021-10-21 | 2022-03-11 | 东风汽车底盘系统有限公司 | Composite auxiliary spring simulation loading bench test device and test method |
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