CN112129504A - Device and method for testing performance of longitudinally-arranged composite plate spring - Google Patents
Device and method for testing performance of longitudinally-arranged composite plate spring Download PDFInfo
- Publication number
- CN112129504A CN112129504A CN202010987560.6A CN202010987560A CN112129504A CN 112129504 A CN112129504 A CN 112129504A CN 202010987560 A CN202010987560 A CN 202010987560A CN 112129504 A CN112129504 A CN 112129504A
- Authority
- CN
- China
- Prior art keywords
- plate spring
- load
- tested
- output connecting
- cross beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
- G01M17/04—Suspension or damping
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a device and a method for testing the performance of a longitudinally-arranged composite plate spring, wherein the testing device comprises: a base; the fixed bracket is arranged on the base; one end of the plate spring to be tested is fixedly connected with the fixed support, and the other end of the plate spring to be tested is movably connected with the fixed support; the fixing component is fixedly connected to the middle part of the plate spring to be tested; the first load loading system is connected with the fixed component and can rotate relative to the fixed component, and loads are applied in the thickness direction and/or the length direction of the plate spring to be tested; and the second load loading system is connected with the fixed assembly and applies load at least in the width direction of the leaf spring to be tested. The invention can simulate the forces of the plate spring in various directions under the actual loading working condition, more objectively evaluate the fatigue life of the composite material plate spring and improve the reliability of the composite material plate spring.
Description
Technical Field
The invention belongs to the technical field of plate spring detection, and particularly relates to a device and a method for testing the performance of a longitudinally-arranged composite plate spring.
Background
With the increasing prominence of global energy shortage and environmental pollution problems, it is important to carry out light weight treatment on automobiles. The fiber reinforced composite material has the advantages of small specific gravity, large elastic modulus, high specific strength, good fatigue resistance, strong designability and the like, can meet the design requirements of automobile plate springs, and can solve the problems of environmental protection, energy consumption and riding comfort stability. The characteristics of the fiber reinforced composite material can meet the performance requirements of the plate spring for the automobile on the material, and can achieve the effect of reducing the weight to a greater extent. Compared with the secondary processing and forming of the traditional metal component, the composite plate spring forming process integrates the material forming process and the automobile component forming process, can carry out integral optimization design on the automobile composite component, is formed in one step, and is simple in process. Therefore, the composite plate spring has wide application prospect in the field of automobile industry.
The existing composite leaf spring manufacturing technology is mostly realized by laminating hot pressing, RTM (resin transfer molding) molding or winding molding, the special molding mode determines the inconsistency of all directional performances of the composite leaf spring, and the difference is very different from the isotropy of a common leaf spring material, namely the composite leaf spring is anisotropic. In addition, the leaf spring of a motor vehicle experiences different states of motion in the actual road conditions, i.e. is subjected to forces in different directions. The action of the forces mainly comprises the jumping up, pressing down and braking of the rough road condition and the extrusion to the span direction of the plate spring in the acceleration and deceleration processes, and the produced S deformation of the plate spring in the span direction; also, the leaf spring is laterally deformed in a rolling manner by a roll force applied to the automobile during steering. Therefore, the stress condition of the plate spring is not single and is relatively complex. The leaf springs, when subjected to repeated application of various alternating forces, can develop fatigue cracks and propagate in localized locations, and in the case of composite laminates, are more prone to delamination, ultimately leading to their failure.
Most of the current steel plate spring test systems obtain the rigidity of a plate spring and the fatigue life under the action of vertical cyclic load through displacement and load in the vertical direction, but the test mode for evaluating and testing the performance of the composite material plate spring is not comprehensive, so that whether the composite material plate spring can meet the requirements of a finished automobile or not is difficult to prejudge, and the failure is often reported in the process of a finished automobile road test.
Chinese patent publication No. CN106092552A discloses a device for testing the performance of a longitudinally-arranged composite plate spring of an automobile, which comprises a substrate; a leaf spring to be tested; a pair of guide rails symmetrically arranged at two sides of the top surface of the substrate; a pair of sliding parts which are arranged on the guide rail and form a moving pair with the guide rail, and a displacement measuring device which is matched with the guide rail and the sliding parts is arranged between the guide rail and the sliding parts; the support part arranged on the sliding part supports the plate spring to be tested, the output rod of the load loading system is connected to the middle part of the plate spring to be tested through the clamping plate, and the central axis of the output rod is perpendicular to the test reference surface. According to the scheme, the transverse displacement of the plate spring is measured, the rigidity of the plate spring is corrected by utilizing the chord length, and the performance of the composite plate spring is tested.
Chinese patent publication No. CN106289745A discloses a composite leaf spring high and low temperature fatigue and side-tipping performance testing rack, which comprises an experimental box, a temperature adjusting system, a driving mechanism, a pressure rod and a temperature sensor; the plate spring supporting cross beam is installed in the experiment box body through the lifting mechanism, the position of the plate spring supporting cross beam is matched with the pressure rod, a pair of plate spring clamping supports are arranged on the plate spring supporting cross beam, the plate spring clamping supports are matched with the plate spring supporting cross beam to form two plate spring clamping positions, and the plate spring clamping positions are respectively a horizontal clamping position and a vertical clamping position. The scheme is only to vertically pressurize the composite plate spring and test the fatigue performance of the composite plate spring. The test for the rolling performance is single-point load application, and is not enough to simulate the rolling force applied to the plate spring in actual road conditions.
Therefore, in the existing testing device, on one hand, the test on the composite material plate spring is that single-point unidirectional load is applied, and the load cannot be loaded in multiple directions at the same time, so that the pressure in multiple directions applied to the plate spring in actual road conditions cannot be simulated; on the other hand, in the existing testing device, the eye lugs at both ends of the plate spring are fixed on a trolley which can slide for testing, the difference from the actual loading condition of the plate spring is large, and the fatigue life of the composite plate spring cannot be objectively reflected.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device and a method for testing the performance of a longitudinally-arranged composite plate spring. The test device can apply load in three-dimensional direction, can apply cyclic load to the composite plate spring through single loading or combined loading of forces in different directions, and change frequency to simulate the force applied to the plate spring in the actual loading condition, thereby more objectively evaluating the fatigue life of the composite plate spring.
In order to solve the technical problems, the invention adopts the technical scheme that:
the invention provides a device for testing the performance of a longitudinally-arranged composite plate spring, which comprises:
a base;
the fixed bracket is arranged on the base;
one end of the plate spring to be tested is fixedly connected with the fixed support, and the other end of the plate spring to be tested is movably connected with the fixed support;
the fixing component is fixedly connected to the middle part of the plate spring to be tested;
the first load loading system is connected with the fixed component and can rotate relative to the fixed component, and loads are applied in the thickness direction and/or the length direction of the plate spring to be tested;
and the second load loading system is connected with the fixed assembly and applies load at least in the width direction of the leaf spring to be tested.
In a further scheme, the fixed support comprises a cross beam, and at least one end of the cross beam is fixedly connected with the base; the length directions of the plate spring to be tested and the cross beam are consistent, one end of the plate spring to be tested is fixedly connected with the cross beam, and the other end of the plate spring to be tested is movably connected with the cross beam;
preferably, the plate spring to be tested is positioned below the cross beam, one end of the plate spring to be tested is fixedly connected with the cross beam, and the other end of the plate spring to be tested is hinged with the cross beam.
In a further scheme, a fixed mounting part and a movable mounting part are arranged on the cross beam, and the fixed mounting part comprises a hanging lug arranged on the lower side of one end of the cross beam and is fixedly connected with a rolling lug at one end of the plate spring; the movable mounting part comprises a hinge mounting frame, one end of the hinge mounting frame is connected with the cross beam, and the other end of the hinge mounting frame is hinged with a rolling lug at one end of the plate spring;
preferably, a plurality of fixing holes are formed in the cross beam along the length direction, and one end of the hinge mounting frame is connected with the cross beam through the fixing holes.
In a further aspect, the first load loading system includes a first output connecting rod and a first loading device, one end of the first output connecting rod is rotatably connected to the fixing assembly, and the other end of the first output connecting rod is rotatably connected to the first loading device.
The lower ends of the two first output connecting rods are respectively and rotatably connected with two sides of the fixing component, and a fixing transverse shaft is arranged between the upper ends of the two first output connecting rods; the first loading device is connected with the fixed transverse shaft and can rotate around the fixed transverse shaft.
According to a further scheme, the second load loading system is located on one side of the plate spring in the width direction and comprises a second output connecting rod, a second loading device and a connecting frame, one end of the connecting frame is fixedly connected with the fixing component, the other end of the connecting frame is rotatably connected with the second output connecting rod, and the second output connecting rod is fixedly connected with the second loading device.
In a further scheme, the connecting frame comprises a first rod and a second rod which are perpendicular to each other, one end of the first rod is fixedly connected with the fixing component, and the other end of the first rod is fixedly connected with the middle part of the second rod; the second output connecting rods comprise two second output connecting rods which are arranged in parallel, and the two second output connecting rods are respectively and rotatably connected with the two ends of the second rod and are fixedly connected with the second loading device.
In a further scheme, a rotating flange is sleeved on the first rod and can rotate around the first rod, and the lower end of the first output connecting rod is fixedly connected with the rotating flange;
preferably, the rotating flange and the first rod are provided with matched positioning holes, and the rotating flange and the first rod are fixed by sequentially penetrating through the matched positioning holes through the fixing piece.
A second object of the present invention is to provide a testing method for a longitudinally-arranged composite material leaf spring performance testing apparatus according to any one of the above schemes or combination schemes, wherein the testing method is used for testing the performance of the leaf spring to be tested by controlling the opening/closing, the direction, the magnitude and the frequency of the applied load of the first load loading system and the second load loading system, and loading the force in a single direction or a combination of different directions to the leaf spring to be tested.
In a further scheme, the direction of the first output connecting rod and the angle between the first loading device and the first output connecting rod are adjusted to control the loading force of the first load loading system in the length direction and the thickness direction of the plate spring to be tested, and the loading force in the width direction of the plate spring to be tested is adjusted through the second load loading system to perform performance testing.
In a further scheme, the test method for simulating different working conditions comprises the following steps:
the working condition of full load: adjusting the first loading device and the first output connecting rod to be vertical to the length direction of the cross beam, and controlling the first loading device to apply load in the thickness direction of the plate spring to be tested;
load condition when turning and heeling: adjusting the first loading device and the first output connecting rod to be vertical to the length direction of the cross beam, and controlling the first loading device to apply load in the thickness direction of the plate spring to be tested; meanwhile, controlling a second loading device to apply a load in the width direction of the plate spring to be tested;
load conditions at brake deceleration/start acceleration: adjusting the first output connecting rod to be vertical to the length direction of the cross beam, and adjusting the first loading device clockwise/anticlockwise to enable the angle between the first loading device and the first output connecting rod to be 45 degrees; and then controlling the first loading device to apply the load.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the performance testing device for the longitudinally-arranged composite plate spring can perform a cooperative loading test in X, Y, Z three-dimensional directions (the thickness, width and length directions of the plate spring); the composite plate spring can be subjected to cyclic load through independent loading or combined loading of forces in different directions, and the frequency is changed to simulate the force applied to the plate spring in the actual loading working condition, so that the fatigue life of the composite plate spring is evaluated.
2. The invention is different from the mode that the two ends of the plate spring are fixed on two sliding trolleys in the traditional plate spring fatigue life test process, the installation of the composite plate spring completely simulates the actual loading condition of the plate spring, one end of the composite plate spring is fixedly connected, the other end of the composite plate spring is connected by adopting a hinge, a stress extension space is reserved, and the fatigue life of the composite plate spring can be objectively reflected.
3. The performance testing device for the longitudinally-arranged composite plate spring adopts a load control mode, not only can detect the manufacturing quality of the composite plate spring, but also can reflect the strength matching condition of the composite plate spring in the actual road condition of a finished automobile.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic structural diagram of a device for testing the performance of a longitudinally-arranged composite plate spring according to the invention;
FIG. 2 is a schematic structural diagram of the longitudinally-arranged composite plate spring performance testing device under a full-load working condition or a turning and side-tipping working condition;
FIG. 3 is a schematic structural diagram of the device for testing the performance of the longitudinally-arranged composite plate spring under braking and deceleration conditions;
FIG. 4 is a schematic view of the structure of FIG. 3 from another perspective (not fully installed);
FIG. 5 is a schematic structural diagram of the longitudinal composite material plate spring performance testing device under the working conditions of starting and acceleration.
In the figure: 10 base, 11 connecting piece;
20 cross beams, 21 hangers, 22 hinge mounting frames, 23 side plates, 24 connecting pins, 25 connecting rods and 26 fixing holes;
30 leaf springs, 40 fixed components;
50 a first load loading system, 51 a first output connecting rod, 52a first loading device, 53 a fixed transverse shaft, 54 a first rotating flange and 55 a first loading connecting rod;
60 a second load loading system, 61 a second output connecting rod, 62 a second loading device, 63 a connecting frame, 64 a first rod, 65 a second rod, 66 a second rotating flange, 67 a connecting flange and 68 a second loading connecting rod.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The force applied to the plate spring is complex due to different road conditions in the driving process of the automobile. Particularly, when the vehicle brakes, starts or accelerates or decelerates, the force generated by the wheels acts on the leaf spring, so that the leaf spring generates S deformation in the longitudinal span direction, and at the moment, the leaf spring is acted by the vertical force and the longitudinal force; when the vehicle turns, under the action of centrifugal force, the force generated by the wheels acts on the leaf spring to cause the leaf spring to generate lateral rolling deformation, and at the moment, the leaf spring is subjected to the combined action of vertical force and lateral force. The existing steel plate spring or composite plate spring only carries out simple up-and-down stress fatigue bench test, the bench test is simple, in addition, the anisotropic characteristic of the composite plate spring is needed to simulate the load condition of the composite plate spring in the vehicle running process, and the fatigue bench device of the composite plate spring needs to be redesigned, so that the performance and the service life of the composite plate spring in the actual road condition are reflected more truly.
Referring to fig. 1 to 5, the invention provides a device for testing the performance of a longitudinally-arranged composite plate spring, which comprises:
a base 10;
a fixing bracket disposed on the base 10;
one end of the plate spring to be tested 30 is fixedly connected with the fixed support, and the other end of the plate spring to be tested 30 is movably connected with the fixed support;
the fixing component 40 is fixedly connected to the middle part of the plate spring to be tested;
a first load applying system 50 connected to the fixing member 40 and rotatable with respect to the fixing member 40 to apply a load in a thickness direction and/or a length direction of the leaf spring to be tested;
and a second load applying system 60 connected to the fixing assembly 40 and applying a load at least in a width direction of the leaf spring to be tested.
In the solution of the present invention, the fixing bracket is installed on the base 10, and the base 10 may be a plurality of structures on which the fixing bracket can be installed, for example, the base 10 may be a separate installation plate, or may be a wall of a box body, and is specifically set according to actual requirements.
The leaf spring to be tested is mounted on the fixed bracket for testing. The fixed support comprises a cross beam 20, and at least one end of the cross beam 20 is fixedly connected with the base 10; the length direction of the plate spring to be tested is consistent with that of the cross beam 20, one end of the plate spring to be tested is fixedly connected with the cross beam 20, and the other end of the plate spring to be tested is movably connected with the cross beam 20.
The beam 20 is a strip-shaped structure, the base 10 is a mounting plate or a box wall, and the length direction of the beam 20 is perpendicular to the surface of the base 10. At least one end of the beam 20 is fixedly connected to the base 10 by a connecting member 11. The connecting member 11 may be a right-angle connecting member 11, and two perpendicular surfaces of the right-angle connecting member 11 are fixedly connected to the cross member 20 and the base 10, respectively, so that the cross member 20 is perpendicular to and fixed to the surface of the base 10.
The beam 20 may have one end fixedly connected to the base 10 and the other end suspended in the air, so as to achieve the fixing effect. Or, both ends of the beam 20 are provided with the bases 10, and both ends of the beam 20 are fixedly connected with the bases 10, for example, when the base 10 is a box body of the testing device, both ends of the beam 20 can be respectively fixed on two inner walls opposite to the box body, so that a better fixing and supporting effect is achieved.
The length direction of the plate spring to be tested is consistent with that of the cross beam 20 and is positioned below the cross beam 20, one of the eye curling at the two ends of the plate spring to be tested is fixedly connected with the cross beam 20, and the other end of the eye curling is hinged with the cross beam 20. After the test fixture is installed, the position of the central part of the plate spring to be tested is the lowest, so that the fixing component 40 is conveniently installed at the central part of the plate spring to be tested, and the force is conveniently applied to the plate spring.
In a further scheme, a fixed mounting part and a movable mounting part are arranged on the cross beam 20, the fixed mounting part comprises a hanging lug 21 arranged on the lower side of one end of the cross beam 20, and the hanging lug is fixedly connected with a rolling lug at one end of a plate spring; the movable mounting part comprises a hinge mounting frame 22, one end of the hinge mounting frame 22 is connected with the cross beam 20, and the other end of the hinge mounting frame 22 is located below the cross beam 20 and hinged to a rolling lug at one end of the plate spring.
One or both ends of the cross member 20 are fixed, and the end of the cross member 20 provided with the suspension loops 21 is considered to be in the same direction as the vehicle traveling direction, and the end provided with the hinge mount 22 is considered to be opposite to the vehicle traveling direction. One end of the composite leaf spring to be tested is fixed to the suspension lug 21 in the same direction as the vehicle running direction, and the other end is fixed to the hinge mounting bracket 22 opposite to the vehicle running direction. Thus, the installation of the composite plate spring can completely simulate the actual loading condition of the plate spring, and the fatigue life of the composite plate spring can be reflected more objectively during testing.
Specifically, the hinge mounting bracket 22 includes two side plates 23 disposed opposite to each other, two ends of the two side plates 23 in the length direction are respectively provided with a hole, and two holes corresponding to the same end position on the two side plates 23 are penetrated and fixed by the same connecting pin 24. The hinge mounting 22 further comprises a connecting rod 25, one end of the connecting rod 25 can be fixed with the cross beam 20, and the other end is rotatably connected with the two side plates 23. So, two curb plates 23 one end are rotated with connecting rod 25 and are connected, and the connecting pin 24 of the other end can pass the eye that corresponds on the board 23 of both sides and leaf spring one end, and the eye can be connected the 24 activities of connecting pin relatively, so with the articulated connection of tip and hinge mount 22 of leaf spring, reserved the space that the leaf spring atress extends, simulate the loading situation that the leaf spring is actual better.
In addition, a plurality of fixing holes 26 are formed in the cross beam 20 at intervals in the length direction, and one end of the connecting rod 25 of the hinge mounting bracket 22 is connected to the cross beam 20 through the fixing holes 26. That is, one end of the connecting rod 25 in the hinge mounting frame 22 can be selectively and fixedly connected with the fixing hole 26 at a proper position on the cross beam 20 according to the length of the leaf spring, so that the leaf spring testing device can be suitable for testing composite leaf springs with different lengths.
By adopting the scheme, the installation mode of the plate spring is different from the mode that two ends of the plate spring are fixed on two sliding trolleys in the traditional plate spring fatigue life test process, the installation of the composite plate spring completely simulates the actual loading condition of the plate spring, namely one end of the composite plate spring is fixed, and the other end of the composite plate spring is connected by a hinge, so that the fatigue life of the composite plate spring can be reflected more objectively.
In order to enable the testing device to carry out the cooperative loading test in the three-dimensional direction, the testing device of the invention applies cyclic load to the composite plate spring through the independent loading or the combined loading of forces in different directions, and comprises a first load loading system 50 and a second load loading system 60 which apply load in different directions. The first load loading system 50 may apply a load in a thickness direction and/or a length direction of the leaf spring to be tested; the second load applying system 60 may apply a load in a width direction of the leaf spring to be tested.
The thickness direction of the leaf spring to be tested in the present invention refers to the vertical direction when the leaf spring is mounted on an automobile (or when placed horizontally), and is also referred to as the X direction in the present invention; the length direction is the longitudinal direction of the plate spring, namely the front and back direction of the plate spring when the plate spring is installed on an automobile, and is also called as the Z direction in the invention; the width direction is a lateral direction of the plate spring, i.e., a left-right direction when the plate spring is mounted on an automobile, and is also referred to as a Y direction in the present invention.
In the present invention, the first load loading system 50 includes a first output connecting rod 51 and a first loading device 52, wherein one end of the first output connecting rod 51 is rotatably connected to the fixing assembly 40, and the other end thereof is rotatably connected to the first loading device 52.
The fixing member 40 may be a plate spring fixing clamp plate fixed to the middle of the plate spring to be tested. The plate spring fixing clamp plate comprises an upper clamp plate and a lower clamp plate, wherein the upper clamp plate and the lower clamp plate are fixed through a plate spring fixing bolt, and a plate spring is fixed between the upper clamp plate and the lower clamp plate. The upper and lower clamping plates may be provided with through holes or mounting holes for connection to the first and second load applying systems 50 and 60. The first load applying system 50 is located above or on one side in the longitudinal direction of the leaf spring, and the second load applying system 60 is located on one side in the width direction of the leaf spring.
As a specific scheme, the first load loading system 50 includes two first output connecting rods 51 arranged in parallel, lower ends of the two first output connecting rods 51 are respectively rotatably connected with two sides of the fixing assembly 40, upper ends of the two first output connecting rods 51 extend above the cross beam 20, and a fixing cross shaft 53 is arranged between the upper ends; the first loading means 52 is connected to the fixed transverse shaft 53 and is rotatable about the fixed transverse shaft 53.
The two first output connecting rods 51 may be integrally formed with the fixed cross shaft 53, or may be fixedly connected to the fixed cross shaft 53 via the connecting member 11. The first loading device 52 comprises a first rotating flange 54 and a first loading connecting rod 55, the first loading connecting rod 55 is fixed on the first rotating flange 54 or integrally formed, and the axis of the first loading connecting rod 55 is perpendicular to the axis of the first rotating flange 54; the first rotating flange 54 is sleeved on the fixed transverse shaft 53 and can rotate around the fixed transverse shaft 53, so that the adjustment of the position and the angle between the first loading device 52 and the first output connecting rod 51 is realized, and the force in different directions can be conveniently applied. Furthermore, the first rotating flange 54 and the fixed cross shaft 53 are provided with matching positioning holes (not shown in the figure), and after the rotation angle of the first loading device 52 relative to the fixed cross shaft 53 is adjusted, the first rotating flange 54 and the fixed cross shaft 53 can be fixed by sequentially passing through the matching positioning holes by a fixing member, so as to facilitate force application.
Based on the fact that the fixing assembly 40 and the leaf spring are fixed in position, the lower ends of the two first output connecting rods 51 are respectively connected with the two sides of the fixing assembly 40 in a rotating mode, and meanwhile, the first loading device 52 is connected with the fixed cross shaft 53 and can rotate around the cross shaft, so that the first output connecting rods 51 can rotate in the vertical plane relative to the leaf spring, and meanwhile, the first loading device 52 can rotate in the vertical plane relative to the first output connecting rods 51. During testing, the position of the first output connecting rod 51 and the angle between the first loading device 52 and the first output connecting rod 51 can be adjusted as required to control the direction of the applied load. For example, when the first output connecting rod 51 and the first loading device 52 are both vertically arranged, it is possible to apply a force only in the thickness direction (X direction) of the test leaf spring; when the first output connecting rod 51 is vertically arranged and the first loading device 52 rotates clockwise or counterclockwise, a certain angle is formed between the first loading device 52 and the first output connecting rod 51, so that the applied load has a resolved force in the thickness direction and the length direction (X and Z directions).
In a further aspect, the second load loading system 60 is located on one side of the plate spring in the width direction, and includes a second output connecting rod 61, a second loading device 62 and a connecting frame 63, one end of the connecting frame 63 is fixedly connected to the fixing assembly 40, the other end of the connecting frame 63 is rotatably connected to the second output connecting rod 61, and the second output connecting rod 61 is fixedly connected to the second loading device 62.
In a further aspect, the connecting frame 63 includes a first rod 64 and a second rod 65 which are vertically arranged to form a T-shaped structure; the first bar 64 is a vertical bar of the T-shape and the second bar 65 is a horizontal bar of the T-shape. One end of the first rod 64 is fixedly connected with the fixing component 40, and the other end of the first rod is fixedly connected with the middle part of the second rod 65; the second output connecting rods 61 are arranged in parallel, and the two second output connecting rods 61 are respectively rotatably connected with two ends of the second rod 65 and fixedly connected with the second loading device 62.
The second loading device 62 comprises a connecting flange 67 and a second loading connecting rod 68, the second loading connecting rod 68 is fixed on the connecting flange 67 or integrally formed, and the axis of the second loading connecting rod 68 is perpendicular to the axis of the connecting flange 67. Both sides of the center of the connecting flange 67 are fixed to one ends of the two second output connecting rods 61, respectively. The second loading device 62 and the second output connecting rod 61 may be integrally formed or fixedly connected. The extended ends of the two second output connecting rods 61 are rotatably connected to both ends of a second rod 65 (a cross bar of a T-shape) of the connecting frame 63, respectively. For example, the extended ends of the two second output connecting rods 61 are provided with shaft holes into which the two ends of the second rod 65 are inserted, respectively, and the second loading device 62 and the second output connecting rods 61 can rotate around the second rod 65. In this manner, by the angle between the second loading means 62 and the second lever 65, it is possible to control the loaded force to apply only the force in the width direction, or the applied force to have the resolved forces in the vertical direction and the width direction.
Further, a second rotating flange 66 is sleeved on the first rod 64, the second rotating flange 66 can rotate around the first rod 64, and the lower end of the first output connecting rod 51 is fixedly connected with the second rotating flange 66. The second rotating flange 66 and the first rod 64 are provided with matching positioning holes (not shown), and the second rotating flange 66 and the first rod 64 are fixed by fixing members sequentially penetrating through the matching positioning holes. After the rotation angle and the position of the first output connecting rod 51 are adjusted, the position of the first output connecting rod 51 can be fixed by using the fixing member and the positioning hole.
The first load loading system 50 may load the force in the thickness direction (X direction) or the length direction (Z direction) alone or in both the X and Z directions. The second load applying system 60 may apply only the force in the width direction (Y direction) of the plate spring, or may apply the forces in the thickness direction and the width direction (Y direction and X direction) at the same time. Therefore, the first load loading system 50 or the second load loading system 60 can be controlled to apply loads independently, the first load loading system 50 and the second load loading system 60 can be controlled to apply loads cooperatively, the plate spring can be tested in a plurality of different directions, the force of the plate spring in various different working conditions of actual loading can be simulated by matching with the change frequency, and the fatigue life of the composite plate spring can be evaluated more objectively.
In the present invention, the first loading device 52 and the second loading device 62 may both adopt a servo hydraulic driving device with a pressure sensor and a displacement sensor.
The invention also provides a testing method of the device for testing the performance of the longitudinally-arranged composite material plate spring, which is characterized in that the testing method is used for testing the performance of the plate spring to be tested by controlling the opening/closing of the first load loading system 50 and the second load loading system 60 and the magnitude and frequency of the applied load and loading the force in a single direction or combined forces in different directions on the plate spring to be tested.
Further, by adjusting the direction of the first output connecting rod 51 and the angle between the first loading device 52 and the first output connecting rod 51, the forces loaded by the first load loading system 50 in the length direction and the thickness direction of the leaf spring to be tested are controlled, and the forces loaded in the width direction of the leaf spring to be tested are adjusted by the second load loading system 60, so that the performance test is performed.
In a further scheme, the test method for simulating different working conditions comprises the following steps:
the working condition of full load: adjusting the first loading device 52 and the first output connecting rod 51 to be both vertical to the length direction of the cross beam 20, and controlling the first loading device 52 to apply a load in the thickness direction of the leaf spring to be tested;
load condition when turning and heeling: adjusting the first loading device 52 and the first output connecting rod 51 to be both vertical to the length direction of the cross beam 20, and controlling the first loading device 52 to apply a load in the thickness direction of the leaf spring to be tested; meanwhile, the second loading device 62 is controlled to apply a load in the width direction of the leaf spring to be tested;
load conditions at brake deceleration/start acceleration: adjusting the first output connecting rod 51 to be vertical to the length direction of the cross beam 20, and adjusting the first loading device 52 clockwise/counterclockwise to enable the angle between the first loading device 52 and the first output connecting rod 51 to be 45 degrees; and then controls the first loading device 52 to apply the load.
Specifically, the specific conditions that the device of the present invention can test include, but are not limited to, the following:
1. fatigue test under full load working condition
When carrying out the full load operating mode fatigue test of combined material leaf spring, owing to only receive the effect of vertical direction power, only apply this moment continuous, endless X to the power can, the experimental load scope of this moment is: and the full load is +/- (jump limit load-full load), and the frequency range is 0.1-3 Hz. And observing the condition of the composite plate spring constantly in the fatigue test process, stopping the test if the composite plate spring has the conditions of cracks, delamination or fracture and the like, and recording the cycle number of the test, namely the fatigue life of the composite plate spring, or stopping the corresponding test if the cycle number of the test meets the requirement and the plate spring does not have the conditions of cracks, delamination or fracture and the like. The test is carried out in the environment with the temperature of 20 +/-15 ℃ and the humidity of 65 +/-20 percent, or the composite plate spring generates heat remarkably or other abnormal conditions, and the content is also recorded and reported.
Referring to fig. 2, the specific implementation method is as follows: the first loading device 52(X, Z to servo hydraulic drive device) is adjusted to be in a linear connection state with the first output connecting rod 51(X, Z to load output connecting rod), and the first output connecting rod 51(X, Z to load output connecting rod) is adjusted to be vertically arranged, namely, the first loading device 52 and the first output connecting rod 51 are both perpendicular to the cross beam 20. After the adjustment is completed, the first loading device 52(X, Z) applies the continuous and cyclic X-direction force to the leaf spring.
2. Fatigue test under turning and side-tipping working conditions
When the composite plate spring is subjected to fatigue test under turning and side-tipping working conditions, continuous and cyclic X-direction force and Y-direction force are applied at the same time due to the action of the vertical direction and the lateral force, and the X-direction test load range is as follows: and the full load is +/- (jump limit load-full load), and the frequency range is 0.1-3 Hz. The Y-direction test load range is as follows: the load is plus or minus (the jump-up limit load is minus 1.5 times the full load) which is 1.5 times the full load, and the frequency range is 0.1-3 Hz. And observing the condition of the composite plate spring at any time in the fatigue test process, stopping the test if the composite plate spring has the conditions of cracks, delamination or fracture and the like, and recording the cycle number of the test, namely the fatigue life of the composite plate spring, or stopping the corresponding test if the cycle number of the test meets the requirement and the plate spring does not have the conditions of cracks, delamination or fracture and the like. The test is carried out in the environment with the temperature of 20 +/-15 ℃ and the humidity of 65 +/-20 percent, or the composite plate spring generates heat remarkably or other abnormal conditions, and the content is also recorded and reported.
Referring to fig. 2, the specific implementation method is as follows: the first loading device 52(X, Z to servo hydraulic drive device) is adjusted to be in a linear connection state with the first output connecting rod 51(X, Z to load output connecting rod), and the first output connecting rod 51(X, Z to load output connecting rod) is adjusted to be vertically arranged, namely, the first loading device 52 and the first output connecting rod 51 are both perpendicular to the cross beam 20. After the adjustment is completed, the first loading device 52(X, Z) applies the continuous and cyclic X-direction force to the plate spring to the servo hydraulic driving device; meanwhile, the second loading device 62 (Y-direction servo hydraulic driving device) applies Y-direction force to the leaf spring, and therefore the fatigue simulation test under the turning and rolling working conditions of the composite leaf spring can be achieved.
3. Fatigue test under S deformation working condition
When the fatigue test is carried out on the composite plate spring under the S deformation working condition, continuous and cyclic X-direction force and Z-direction force are applied at the same time due to the action of the vertical direction force and the Z-direction force. The X-direction force and the Z-direction force are obtained by the first loading device 52(X, Z) by dividing the load applied to the servo hydraulic drive device. Keeping the first output connecting rod 51(X, Z direction load output connecting rod) perpendicular to the position of the plate spring, rotating the first loading device 52 clockwise and anticlockwise to obtain different loading angles, pressing the loading angles, and decomposing the loading angles into forces in the X direction and the Z direction, so that the effect that X, Z direction force acts on the plate spring at the same time is obtained. Different loading loads in the X direction and the Z direction can be obtained by changing the loading angle, and the angle change range is 0-90 degrees. The test load ranges at this time were: and the full load is +/- (jump limit load-full load), and the frequency range is 0.1-3 Hz. And observing the condition of the composite plate spring at any time in the fatigue test process, stopping the test if the composite plate spring has the conditions of cracks, delamination or fracture and the like, and recording the cycle number of the test, namely the fatigue life of the composite plate spring, or stopping the corresponding test if the cycle number of the test meets the requirement and the plate spring does not have the conditions of cracks, delamination or fracture and the like. The test is carried out in the environment with the temperature of 20 +/-15 ℃ and the humidity of 65 +/-20 percent, or the composite plate spring generates heat remarkably or other abnormal conditions, and the content is also recorded and reported.
The invention can simulate two S deformation working conditions of the composite plate spring, namely a braking working condition, a decelerating working condition and a fatigue test under a starting working condition and an accelerating working condition. The specific implementation method comprises the following steps:
(1) referring to fig. 3 and 4, the braking and deceleration condition "S" deformation fatigue test: the first loading device 52 is adjusted clockwise (X, Z to the servo hydraulic drive device) to be in 45 degree connection with the first output link 51(X, Z to the load output link), and the first output link 51(X, Z to the load output link) is adjusted to be perpendicular to the Z direction, that is, to the leaf spring. After adjustment, the continuous, cyclical load is applied to the leaf spring by the first loading device 52(X, Z to the servo hydraulic drive).
(2) Referring to fig. 5, the starting and accelerating condition "S" deformation fatigue test: the first loading device 52(X, Z-direction servo hydraulic drive device) is adjusted counterclockwise to be in a 45-degree connection state with the first output connecting rod 51(X, Z-direction load output connecting rod), and the first output connecting rod 51(X, Z-direction load output connecting rod) is adjusted to be perpendicular to the Z direction, namely, to be arranged vertically. After adjustment, the continuous, cyclical load is applied to the leaf spring by the first loading device 52(X, Z to the servo hydraulic drive).
4. Combined working conditions
In addition, the fatigue testing device for the automobile longitudinally-arranged composite plate spring can also carry out sectional design on a fatigue testing period, so that the fatigue testing period comprises the combination of any two or three of full load, side inclination and S deformation fatigue tests, the testing process is closer to the condition of the composite plate spring in the actual road condition, and the reliability of the fatigue life testing result of the composite plate spring can be greatly improved.
The specific implementation method comprises the following steps: the following is an example of a special three-way force simultaneous loading test condition.
The rough road deceleration turning working condition is as follows: the first loading device 52 is adjusted clockwise (X, Z to the servo hydraulic drive device) to be in 45-degree connection with the first output connecting rod 51(X, Z to the load output connecting rod), and the first output connecting rod 51(X, Z to the load output connecting rod) is adjusted to be perpendicular to the Z direction, namely, to be arranged vertically. After adjustment, the first loading device 52(X, Z) applies a continuous, cyclical load to the leaf spring to the servo hydraulic drive. Load range: and the full load is +/- (jump limit load-full load), and the frequency range is 0.1-3 Hz. At the same time, a Y-direction force is applied to the leaf spring by the second loading device 62 (Y-direction servo hydraulic drive device). Load range: the load is plus or minus (the jump-up limit load is minus 1.5 times the full load) which is 1.5 times the full load, and the frequency range is 0.1-3 Hz.
In conclusion, the performance testing device for the longitudinally-arranged composite plate spring can perform a cooperative loading test in the X, Y, Z three-dimensional direction; the composite plate spring can be subjected to cyclic load through independent loading or combined loading of forces in different directions, and the frequency is changed to simulate the force applied to the plate spring in the actual loading working condition, so that the fatigue life of the composite plate spring is evaluated.
The invention is different from the mode that the two ends of the plate spring are fixed on two sliding trolleys in the traditional plate spring fatigue life test process, the installation of the composite plate spring completely simulates the actual loading condition of the plate spring, and one end of the composite plate spring is connected by a hinge, so that the fatigue life of the composite plate spring can be reflected more objectively.
The performance testing device for the longitudinally-arranged composite plate spring adopts a load control mode, not only can detect the manufacturing quality of the composite plate spring, but also can reflect the strength matching condition of the composite plate spring in the actual road condition of a finished automobile.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a indulge and put combined material leaf spring capability test device which characterized in that includes:
a base;
the fixed bracket is arranged on the base;
one end of the plate spring to be tested is fixedly connected with the fixed support, and the other end of the plate spring to be tested is movably connected with the fixed support;
the fixing component is fixedly connected to the middle part of the plate spring to be tested;
the first load loading system is connected with the fixed component and can rotate relative to the fixed component, and loads are applied in the thickness direction and/or the length direction of the plate spring to be tested;
and the second load loading system is connected with the fixed assembly and applies load at least in the width direction of the leaf spring to be tested.
2. The device for testing the performance of the longitudinally-arranged composite plate spring according to claim 1, wherein the fixed support comprises a cross beam, and at least one end of the cross beam is fixedly connected with the base; the length direction of the plate spring to be tested is consistent with that of the cross beam, one end of the plate spring to be tested is fixedly connected with the cross beam, and the other end of the plate spring to be tested is movably connected with the cross beam;
preferably, the plate spring to be tested is positioned below the cross beam, one end of the plate spring to be tested is fixedly connected with the cross beam, and the other end of the plate spring to be tested is hinged with the cross beam.
3. The device for testing the performance of the longitudinally-arranged composite plate spring according to claim 2, wherein the cross beam is provided with a fixed mounting part and a movable mounting part, the fixed mounting part comprises a hanging lug arranged on the lower side of one end of the cross beam and is fixedly connected with a rolling lug at one end of the plate spring; the movable mounting part comprises a hinge mounting frame, one end of the hinge mounting frame is connected with the cross beam, and the other end of the hinge mounting frame is hinged with a rolling lug at one end of the plate spring;
preferably, a plurality of fixing holes are formed in the cross beam along the length direction, and one end of the hinge mounting frame is connected with the cross beam through the fixing holes.
4. The device for testing the performance of the longitudinally-arranged composite plate spring according to any one of claims 1-3, wherein the first load loading system comprises a first output connecting rod and a first loading device, one end of the first output connecting rod is rotatably connected with the fixing component, and the other end of the first output connecting rod is rotatably connected with the first loading device.
5. The device for testing the performance of the longitudinally-arranged composite plate spring according to claim 4, which comprises two first output connecting rods arranged in parallel, wherein the lower ends of the two first output connecting rods are respectively and rotatably connected with two sides of the fixing component, and a fixing transverse shaft is arranged between the upper ends of the two first output connecting rods; the first loading device is connected with the fixed transverse shaft and can rotate around the fixed transverse shaft.
6. The device for testing the performance of the longitudinally-arranged composite plate spring according to any one of claims 1-5, wherein the second load loading system is positioned on one side of the plate spring in the width direction and comprises a second output connecting rod, a second loading device and a connecting frame, one end of the connecting frame is fixedly connected with the fixing component, the other end of the connecting frame is rotatably connected with the second output connecting rod, and the second output connecting rod is fixedly connected with the second loading device.
7. The device for testing the performance of the longitudinally-arranged composite plate spring according to claim 6, wherein the connecting frame comprises a first rod and a second rod which are perpendicular to each other, one end of the first rod is fixedly connected with the fixing component, and the other end of the first rod is fixedly connected with the middle part of the second rod; the second output connecting rods comprise two second output connecting rods which are arranged in parallel, and the two second output connecting rods are respectively and rotatably connected with the two ends of the second rod and are fixedly connected with the second loading device.
8. The device for testing the performance of the longitudinally-arranged composite plate spring according to claim 7, wherein a rotating flange is sleeved on the first rod and can rotate around the first rod, and the lower end of the first output connecting rod is fixedly connected with the rotating flange;
preferably, the rotating flange and the first rod are provided with matched positioning holes, and the rotating flange and the first rod are fixed by sequentially penetrating through the matched positioning holes through the fixing piece.
9. A testing method of the device for testing the performance of a longitudinally-arranged composite plate spring according to any one of claims 1 to 8, characterized in that the testing plate spring is subjected to performance testing by controlling the opening/closing, the direction, the magnitude and the frequency of the applied load of the first load loading system and the second load loading system and loading the force in a single direction or a combination of different directions on the testing plate spring to be tested;
preferably, the direction of the first output connecting rod and the angle between the first loading device and the first output connecting rod are adjusted to control the force loaded by the first load loading system in the length direction and the thickness direction of the plate spring to be tested, and the force loaded in the width direction of the plate spring to be tested is adjusted by the second load loading system to perform performance testing.
10. The test method of claim 9, wherein the test method for simulating a condition comprises:
the working condition of full load: adjusting the first loading device and the first output connecting rod to be vertical to the length direction of the cross beam, and controlling the first loading device to apply load in the thickness direction of the plate spring to be tested;
load condition when turning and heeling: adjusting the first loading device and the first output connecting rod to be vertical to the length direction of the cross beam, and controlling the first loading device to apply load in the thickness direction of the plate spring to be tested; meanwhile, controlling a second loading device to apply a load in the width direction of the plate spring to be tested;
load conditions at brake deceleration/start acceleration: adjusting the first output connecting rod to be vertical to the length direction of the cross beam, and adjusting the first loading device clockwise/anticlockwise to enable the angle between the first loading device and the first output connecting rod to be 45 degrees; and then controlling the first loading device to apply the load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010987560.6A CN112129504B (en) | 2020-09-18 | 2020-09-18 | Device and method for testing performance of longitudinally-arranged composite plate spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010987560.6A CN112129504B (en) | 2020-09-18 | 2020-09-18 | Device and method for testing performance of longitudinally-arranged composite plate spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112129504A true CN112129504A (en) | 2020-12-25 |
| CN112129504B CN112129504B (en) | 2022-07-05 |
Family
ID=73842992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010987560.6A Active CN112129504B (en) | 2020-09-18 | 2020-09-18 | Device and method for testing performance of longitudinally-arranged composite plate spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112129504B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113343374A (en) * | 2021-04-26 | 2021-09-03 | 江铃汽车股份有限公司 | Automobile plate spring fatigue testing method |
| CN117664550A (en) * | 2023-12-15 | 2024-03-08 | 海兴和美汽车配件有限公司 | Leaf spring fatigue test device |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1427984A1 (en) * | 1986-12-26 | 1990-12-15 | Предприятие П/Я А-3430 | Ad x-ray inspection of welds of articles with helical surface |
| JPH04236339A (en) * | 1991-01-18 | 1992-08-25 | Honda Motor Co Ltd | Measuring method of load of belleville spring and assembling structure of belleville spring |
| CN104931407A (en) * | 2015-06-10 | 2015-09-23 | 合肥通用机械研究院 | Multi-axis salt spray corrosion fatigue crack propagation test system |
| CN104949830A (en) * | 2015-07-06 | 2015-09-30 | 湖南湖大艾盛汽车技术开发有限公司 | Test bed for leaf spring for automobile suspension |
| CN105808872A (en) * | 2016-03-15 | 2016-07-27 | 合肥工业大学 | Vehicle suspension leaf spring frequency domain fatigue analysis method |
| JP2016161300A (en) * | 2015-02-27 | 2016-09-05 | 株式会社日立製作所 | Test device |
| CN106092768A (en) * | 2016-08-22 | 2016-11-09 | 安徽江淮汽车股份有限公司 | A kind of leaf spring composite force bench test mechanism |
| CN106168535A (en) * | 2016-09-20 | 2016-11-30 | 天津航天瑞莱科技有限公司 | A kind of fatigue load assay device of leaf springs of car |
| CN106289746A (en) * | 2016-08-22 | 2017-01-04 | 安徽江淮汽车股份有限公司 | A kind of leaf spring composite force Bench test methods |
| CN106289745A (en) * | 2016-08-11 | 2017-01-04 | 上海汽车集团股份有限公司 | Composite material plate spring high/low temperature fatigue and rolling capability testboard bay |
| CN107314896A (en) * | 2017-08-03 | 2017-11-03 | 石家庄铁道大学 | For vehicle suspension leaf spring three-dimensional Dynamic performance examination equipment and its application |
| CN107356426A (en) * | 2017-09-18 | 2017-11-17 | 株洲时代新材料科技股份有限公司 | Longitudinal flat spring hangs down lateral fatigue test device and method |
| CN206710079U (en) * | 2017-04-12 | 2017-12-05 | 襄阳达安汽车检测中心 | A kind of automobile leaf spring torsional fatigue test device |
| CN107478415A (en) * | 2016-06-08 | 2017-12-15 | 东风汽车悬架弹簧有限公司 | A kind of test tool for the loading of the direction of leaf spring three |
| CN207585901U (en) * | 2017-11-22 | 2018-07-06 | 中国第一汽车股份有限公司 | A kind of steel plate spring assembly two degrees of freedom combined loading test mechanism |
| CN108692924A (en) * | 2017-04-12 | 2018-10-23 | 襄阳达安汽车检测中心 | A kind of automobile leaf spring torsional fatigue test device |
| CN110296820A (en) * | 2019-06-03 | 2019-10-01 | 中国纺织科学研究院有限公司 | A kind of longitudinal composite material plate spring performance testing device and test method |
-
2020
- 2020-09-18 CN CN202010987560.6A patent/CN112129504B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1427984A1 (en) * | 1986-12-26 | 1990-12-15 | Предприятие П/Я А-3430 | Ad x-ray inspection of welds of articles with helical surface |
| JPH04236339A (en) * | 1991-01-18 | 1992-08-25 | Honda Motor Co Ltd | Measuring method of load of belleville spring and assembling structure of belleville spring |
| JP2016161300A (en) * | 2015-02-27 | 2016-09-05 | 株式会社日立製作所 | Test device |
| CN104931407A (en) * | 2015-06-10 | 2015-09-23 | 合肥通用机械研究院 | Multi-axis salt spray corrosion fatigue crack propagation test system |
| CN104949830A (en) * | 2015-07-06 | 2015-09-30 | 湖南湖大艾盛汽车技术开发有限公司 | Test bed for leaf spring for automobile suspension |
| CN105808872A (en) * | 2016-03-15 | 2016-07-27 | 合肥工业大学 | Vehicle suspension leaf spring frequency domain fatigue analysis method |
| CN107478415A (en) * | 2016-06-08 | 2017-12-15 | 东风汽车悬架弹簧有限公司 | A kind of test tool for the loading of the direction of leaf spring three |
| CN106289745A (en) * | 2016-08-11 | 2017-01-04 | 上海汽车集团股份有限公司 | Composite material plate spring high/low temperature fatigue and rolling capability testboard bay |
| CN106289746A (en) * | 2016-08-22 | 2017-01-04 | 安徽江淮汽车股份有限公司 | A kind of leaf spring composite force Bench test methods |
| CN106092768A (en) * | 2016-08-22 | 2016-11-09 | 安徽江淮汽车股份有限公司 | A kind of leaf spring composite force bench test mechanism |
| CN106168535A (en) * | 2016-09-20 | 2016-11-30 | 天津航天瑞莱科技有限公司 | A kind of fatigue load assay device of leaf springs of car |
| CN206710079U (en) * | 2017-04-12 | 2017-12-05 | 襄阳达安汽车检测中心 | A kind of automobile leaf spring torsional fatigue test device |
| CN108692924A (en) * | 2017-04-12 | 2018-10-23 | 襄阳达安汽车检测中心 | A kind of automobile leaf spring torsional fatigue test device |
| CN107314896A (en) * | 2017-08-03 | 2017-11-03 | 石家庄铁道大学 | For vehicle suspension leaf spring three-dimensional Dynamic performance examination equipment and its application |
| CN107356426A (en) * | 2017-09-18 | 2017-11-17 | 株洲时代新材料科技股份有限公司 | Longitudinal flat spring hangs down lateral fatigue test device and method |
| CN207585901U (en) * | 2017-11-22 | 2018-07-06 | 中国第一汽车股份有限公司 | A kind of steel plate spring assembly two degrees of freedom combined loading test mechanism |
| CN110296820A (en) * | 2019-06-03 | 2019-10-01 | 中国纺织科学研究院有限公司 | A kind of longitudinal composite material plate spring performance testing device and test method |
Non-Patent Citations (4)
| Title |
|---|
| BECKER, F: "Fatigue testing of GFRP materials for the application in automotive leaf springs", 《FATIGUE DESIGN 2019, INTERNATIONAL CONFERENCE ON FATIGUE DESIGN, 8TH EDITION》 * |
| KUMAR, MS: "Analytical and experimental studies on fatigue life prediction of steel and composite multi-leaf spring for light passenger vehicles using life data analysis", 《MATERIALS SCIENCE-MEDZIAGOTYRA》 * |
| 唐玉婷: "异形截面板弹簧的疲劳寿命分析", 《中国优秀硕士学位论文全文库》 * |
| 张雷: "车用复合材料板簧性能的有限元分析", 《合成纤维》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113343374A (en) * | 2021-04-26 | 2021-09-03 | 江铃汽车股份有限公司 | Automobile plate spring fatigue testing method |
| CN113343374B (en) * | 2021-04-26 | 2022-04-22 | 江铃汽车股份有限公司 | Automobile plate spring fatigue testing method |
| CN117664550A (en) * | 2023-12-15 | 2024-03-08 | 海兴和美汽车配件有限公司 | Leaf spring fatigue test device |
| CN117664550B (en) * | 2023-12-15 | 2024-06-11 | 海兴和美汽车配件有限公司 | Leaf spring fatigue test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112129504B (en) | 2022-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112129504B (en) | Device and method for testing performance of longitudinally-arranged composite plate spring | |
| CN106092552B (en) | The longitudinal composite material plate spring performance testing device of automobile | |
| EP2372334B1 (en) | Vehicle-body integrated test bench | |
| CN101216376B (en) | Four-column type rail vehicle bogie rigidity detection system | |
| CN109765061B (en) | Bench test mechanism for suspension system of passenger car | |
| CN210090043U (en) | Multi-degree-of-freedom loading test device for suspension part of commercial vehicle frame | |
| CN209166841U (en) | Used in Suspended Truss of Passenger Car bench test mechanism | |
| CN107356426B (en) | Vertical side fatigue experiment device and method for longitudinally-arranged plate spring | |
| CN105510047A (en) | Car swing arm road simulation test device | |
| CN210269198U (en) | Multi-channel bench test device of suspension system | |
| CN110296820A (en) | A kind of longitudinal composite material plate spring performance testing device and test method | |
| CN201145641Y (en) | System for detecting four-pillar type rail vehicle steering frame rigidity | |
| CN111076953B (en) | Cable wiring test device between bogie and vehicle body | |
| CN214373379U (en) | Frame bench endurance test device of non-bearing type vehicle body | |
| CN112268821B (en) | Device and method for testing temperature resistance and fatigue performance of longitudinally-arranged composite plate spring | |
| CN112067274B (en) | Device and method for testing salt spray fatigue resistance of longitudinally-arranged composite plate spring | |
| CN219495636U (en) | Torsion beam rear axle bench test device | |
| CN107091752B (en) | Cargo vehicle V-shaped reaction rod bench test system | |
| CN113008575A (en) | Test bench and method for simulating bending working condition of engineering vehicle frame | |
| CN109297694B (en) | Anti-side-rolling torsion bar fatigue test device and method | |
| CN203405341U (en) | Apparatus for measuring rail vehicle end relation | |
| CN111947947B (en) | Automobile suspension front plate spring test bench | |
| CN103926085A (en) | Method and device for testing bending torsion mechanics performance of H-shaped girder framework | |
| CN109668743B (en) | V-shaped thrust rod test bed | |
| KR101180398B1 (en) | Apparatus for testing wheel and rail of rail vheicle having contact angle adjuster |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |