CN113865890B - Suspension K & C characteristic test structure and test method based on suspension module - Google Patents

Suspension K & C characteristic test structure and test method based on suspension module Download PDF

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Publication number
CN113865890B
CN113865890B CN202111192094.3A CN202111192094A CN113865890B CN 113865890 B CN113865890 B CN 113865890B CN 202111192094 A CN202111192094 A CN 202111192094A CN 113865890 B CN113865890 B CN 113865890B
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actuator
tire
suspension
loading
test
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CN113865890A (en
Inventor
杨钧浩
郝锌
孙伟元
李自平
杨雷
高为
张宇江
陈海
曹敏
陈志洋
王乐酉
谭英杰
陈正康
陈忠敏
原磊
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Sichuan Jian'an Industrial Ltd
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Sichuan Jian'an Industrial Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/04—Suspension or damping
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tires In General (AREA)

Abstract

The invention discloses a suspension K & C characteristic test structure and a suspension K & C characteristic test method based on a suspension module, belongs to the technical field of automobile tests, and provides a suspension K & C characteristic test structure and a suspension K & C characteristic test method based on a suspension module, which are low in cost. The test structure comprises a test bed, a suspension module, a tire simulation structure, a corner disc and an actuator, and the connection structures required by various tests can be formed through different connection coordination among the tire simulation structure, the corner disc and the actuator. The invention is based on the test of the suspension module part, but not the whole vehicle, and meanwhile, the connecting structure in each test can be realized only by different connection coordination among the tire simulation structure, the corner disc and the actuator, so that the whole structure and complexity of the test equipment can be greatly simplified, and the cost of the whole test equipment can be obviously reduced finally.

Description

Suspension K & C characteristic test structure and test method based on suspension module
Technical Field
The invention relates to the technical field of automobile tests, in particular to a suspension K & C characteristic test structure based on a suspension module and a test method.
Background
The suspension K & C characteristics are a generic term for the geometric kinematic (kinetic) characteristics of the suspension and the elasto-kinematic (company) characteristics of the suspension, and directly determine the stability performance of the whole vehicle. At present, all devices for measuring K & C characteristics of a suspension are almost all based on the whole vehicle, the cost of the devices for testing is high, the cost of the domestic lowest-cost K & C testing device is about 500 ten thousand, and the cost of the imported testing device is as high as 1000 ten thousand, so that the cost of the testing device is huge.
Disclosure of Invention
The invention solves the technical problem of providing a suspension K & C characteristic test structure based on a suspension module with low cost.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a suspension K & C characteristic test structure based on suspension module, including test bench, suspension module, tire analog structure, corner dish and actuator, install a tire analog structure on the tire installation terminal surface of suspension module both sides respectively, suspension module installs on test bench, and the unsettled setting of tire analog structure of suspension module both sides, be provided with a corner dish under every tire analog structure, the corner dish is including the rotating part that is located upper portion and the base portion that is located the lower part, the surface of the rotating part of corner dish and the bottom contact cooperation of tire analog structure, be equipped with an actuator for every tire analog structure corresponds, the actuator is the mechanism that can concertina movement, the actuator includes flexible end and base end, wherein can form the required connection structure of following several kinds of different experiments through the different connection cooperation between tire analog structure, corner dish and the actuator:
first, three test connection structures for performing a homozygosity wheel jump motion test, a reverse wheel jump motion test and a steering motion test: the telescopic end of the actuator is connected with the middle part of the lower surface of the base part of the corner disc, the base end of the actuator is downwards supported on the ground or the test bench along the Z-axis direction, and the telescopic direction of the actuator is parallel to the Z-axis direction;
second, a ground point longitudinal force test connection structure for performing a tire ground point longitudinal force elastic motion test: the base part of the corner disc is fixedly installed, the telescopic end of the actuator is hinged with the side part of the grounding point of the tire simulation structure, the base end of the actuator is installed on the sliding rail and can slide along the sliding rail in the Y-axis direction, and the telescopic direction of the actuator is parallel to the X-axis direction;
third, a ground point lateral force test connection structure for performing a tire ground point lateral force elastic motion test: the base part of the corner disc is fixedly installed, the telescopic end of the actuator is hinged with the side part of the grounding point of the tire simulation structure, the base end of the actuator is installed on the sliding rail and can slide along the sliding rail in the X axial direction, and the telescopic direction of the actuator is parallel to the Y axial direction;
fourth, a center longitudinal force test connection structure for performing a tire center longitudinal force elastic motion test: the base part of the corner disc is fixedly installed, the telescopic end of the actuator is hinged with the side part of the tire center of the tire simulation structure, the base end of the actuator is installed on the sliding rail and can slide along the sliding rail in the Y-axis direction, and the telescopic direction of the actuator is parallel to the X-axis direction;
fifth, a center lateral force test connection structure for performing a tire center lateral force elastic motion test: the base part of the corner disc is fixedly installed, the telescopic end of the actuator is hinged with the side part of the tire center of the tire simulation structure, the base end of the actuator is installed on the sliding rail and can slide along the sliding rail in the X axial direction, and the telescopic direction of the actuator is parallel to the Y axial direction;
wherein the X-axis, the Y-axis and the Z-axis respectively correspond to the directions corresponding to the X-axis, the Y-axis and the Z-axis in the Cartesian coordinate system; the X-axis is the front-back direction corresponding to the suspension module and the front-back direction corresponding to the travelling crane; the Y-axis is perpendicular to the X-axis and parallel to the rolling axis of the tire simulation structure; the Z-axis is the vertical direction.
Further is: the telescopic end of the actuator is detachably connected with the middle part of the lower surface of the base part of the corner disc through a threaded connection structure.
Further is: in the second connecting structure and the third connecting structure, the telescopic end of the actuator is connected with the side part of the grounding point of the tire simulation structure through a spherical hinge, and the actuator and the sliding rail are rotated 90 degrees around the Z axis of the spherical hinge connection part, so that the actuator can be switched between the second connecting structure and the third connecting structure.
Further is: in the fourth connecting structure and the fifth connecting structure, the telescopic end of the actuator is connected with the side part of the tire center of the tire simulation structure through a spherical hinge, and the actuator and the sliding rail are rotated 90 degrees around the Z axis of the spherical hinge connection part, so that the fourth connecting structure and the fifth connecting structure can be switched.
Further is: the actuator is a telescopic cylinder, a telescopic hydraulic cylinder or a telescopic electric cylinder.
The suspension K & C characteristic test structure based on the suspension module is a test based on the suspension module part, not the whole vehicle, and meanwhile, each connecting structure used in the test can be realized only through different connection coordination among the tire simulation structure, the corner disc and the actuator, so that the overall structure and complexity of the test equipment can be greatly simplified, and the cost of the whole test equipment can be obviously reduced finally.
In addition, the invention also provides a suspension K & C characteristic test method based on the suspension module, and by adopting the suspension K & C characteristic test structure based on the suspension module, the invention can perform the following tests:
the same-direction wheel jump motion test adopts a first connecting structure, adjusts the posture of a suspension to a design position and preloads the contact load between a tire simulation structure and a corner disc to achieve an initial load state; then, two actuators on two sides of the suspension module synchronously carry out the loading of the same-direction extension or shortening, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the reverse wheel jump motion test adopts a first connecting structure, adjusts the posture of a suspension to a design position and preloads the contact load between a tire simulation structure and a corner disc to achieve an initial load state; then, two actuators on two sides of the suspension module synchronously carry out reverse extension or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the steering wheel jump motion test adopts a first connecting structure, adjusts the posture of a suspension to a design position and preloads the contact load between a tire simulation structure and a corner disc to achieve an initial load state; then simulating steering wheel angle input through a suspension module, recording steering wheel angles after each rotation, and simultaneously measuring and recording the tire center and the tire center plane by using a three-coordinate measuring instrument;
the ground point longitudinal force elastic motion test adopts a second connecting structure, adjusts the posture of a suspension to a design position and preloads the contact load between a tire simulation structure and a corner disc to achieve an initial load state; then, the actuator carries out elongating or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the grounding point lateral force elastic motion test adopts a third connecting structure, adjusts the posture of a suspension to a design position and preloads the contact load between a tire simulation structure and a corner disc to achieve an initial load state; then, the actuator carries out elongating or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the tire center longitudinal force elastic motion test adopts a second connecting structure, adjusts the posture of a suspension to a design position and preloads the contact load between a tire simulation structure and a corner disc to achieve an initial load state; then, the actuator carries out elongating or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the tire center lateral force elastic motion test adopts a third connecting structure, adjusts the posture of a suspension to a design position and preloads the contact load between a tire simulation structure and a corner disc to achieve an initial load state; and then the actuator carries out the extension or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by using a three-coordinate measuring instrument.
Further is: in all test processes, the actuator is subjected to extension or shortening loading in a step-by-step loading mode.
According to the suspension K & C characteristic test method based on the suspension module, based on the test structure disclosed by the invention, the same-direction wheel jump motion test, the reverse wheel jump motion test, the steering motion test, the grounding point longitudinal/lateral force elastic motion test, the tire center longitudinal/lateral force elastic motion test and the like can be realized according to actual needs, and particularly, the traditional K & C characteristic test bed can not be measured at all for the tire center longitudinal/lateral force elastic motion test. Meanwhile, the test method is very simple, convenient and easy to operate.
Drawings
FIG. 1 is a front view of a three-item trial connection;
FIG. 2 is a schematic perspective view of FIG. 1;
FIG. 3 is a front view of a ground point longitudinal force test connection;
FIG. 4 is a schematic perspective view of FIG. 3;
FIG. 5 is a front view of a ground point side force test connection;
FIG. 6 is a perspective view of FIG. 5;
FIG. 7 is a front view of a center longitudinal force test connection;
FIG. 8 is a schematic perspective view of FIG. 7;
FIG. 9 is a front view of a center side force test connection;
FIG. 10 is a perspective view of FIG. 9;
marked in the figure as: the device comprises a test bench 1, a suspension module 2, a tire simulation structure 3, a corner disc 4, an actuator 5, a sliding rail 6 and an actuator fixing frame 7.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
In the present invention, directional terms such as up, down, left, right, front, rear, and azimuth are used to facilitate the description of the relative positional relationship between the members, and are not meant to refer specifically to the absolute position of the relative member or the inter-member relationship, but are used only to explain the relative positional relationship, movement, and the like between the members in a specific posture, and if the specific posture is changed, the directional terms are changed accordingly. In the present invention, the terms "plurality", "a plurality" and the like refer to two or more.
As shown in fig. 1 to 10, the suspension K & C characteristic test structure based on the suspension module according to the present invention comprises a test bench 1, a suspension module 2, a tire simulation structure 3, a corner plate 4 and an actuator 5, wherein one tire simulation structure 3 is respectively mounted on tire mounting end surfaces on both sides of the suspension module 2, the suspension module 2 is mounted on the test bench 1, the tire simulation structures 3 on both sides of the suspension module 2 are suspended, one corner plate 4 is arranged right below each tire simulation structure 3, the corner plate 4 comprises a rotating part positioned at the upper part and a base part positioned at the lower part, the surface of the rotating part of the corner plate 4 is in contact fit with the bottom of the tire simulation structure 3, one actuator 5 is correspondingly provided for each tire simulation structure 3, the actuator 5 is a mechanism capable of telescopic movement, and the actuator 5 comprises a telescopic end and a base end.
The invention can form the following connection structures required by different tests through different connection coordination among the tire simulation structure 3, the corner disc 4 and the actuator 5:
first, referring to fig. 1 and 2, there are shown three test connection structures for performing a homozygosity wheel jump test, a reverse wheel jump test and a steering movement test: the telescopic end of the actuator 5 is connected with the middle part of the lower surface of the pedestal part of the corner disc 4, the pedestal end of the actuator 5 is supported on the ground or the test bed 1 downwards along the Z-axis direction, and the telescopic direction of the actuator 5 is parallel to the Z-axis direction. In such a structure, in order to improve the fixing effect after the actuator 5 is mounted, an actuator fixing frame 7 may be further provided to assist the mounting of the actuator 5. In this way, the driving of the corner disc 4 can be realized by the extension or shortening of the actuator 5, so that the loading control between the corner disc 4 and the tire simulation structure 3 is realized, and in the loading process, the tire simulation structure 3 is pressed on the rotating part of the corner disc 4, and F is generated in the loading process X 、F Y 、T Z Can be automatically decoupled by the movement and rotation of the corner disk 4, and can achieve the following effect with the traditional K&The C characteristic test stand has the same effect. And the tire simulation structure 3 is driven to turn by controlling the same-direction or reverse loading of the two actuators 5 or by simulating the steering angle input of the control steering wheel, so that the same-direction, reverse and steering wheel jump motion test can be correspondingly and respectively realized.
Second, referring to fig. 3 and 4, there is shown a ground contact point longitudinal force test connection structure for performing a tire ground contact point longitudinal force elastic motion test: the base part of the corner disc 4 is fixedly installed, the telescopic end of the actuator 5 is hinged with the side part of the grounding point of the tire simulation structure 3, the base end of the actuator 5 is installed on the sliding rail 6 and can slide along the sliding rail 6 in the Y-axis direction, and the telescopic direction of the actuator 5 is parallel to the X-axis direction. In this way, the longitudinal force elastic motion test of the tire grounding point can be loaded and realized through the extension or the shortening of the actuator 5; and in the test loading process, the corner disc 4 can be automatically decoupled, and meanwhile, the actuator 5 can automatically and slightly slide along the slide rail 6 in the Y-axis direction, so that the actuator 5 is ensured to be loaded along the X-direction all the time.
Third, referring to fig. 5 and 6, there is shown a ground point side force test connection structure for performing a tire ground point side force elastic motion test: the base part of the corner disc 4 is fixedly installed, the telescopic end of the actuator 5 is hinged with the side part of the grounding point of the tire simulation structure 3, the base end of the actuator 5 is installed on the sliding rail 6 and can slide along the sliding rail 6 in the X-axis direction, and the telescopic direction of the actuator 5 is parallel to the Y-axis direction. In this way, the lateral force elastic motion test of the tire grounding point can be loaded and realized through the extension or the shortening of the actuator 5; and in the test loading process, the corner disc 4 can be automatically decoupled, and meanwhile, the actuator 5 can automatically and slightly slide along the sliding rail 6 in the X axial direction, so that the actuator 5 is ensured to be loaded along the Y direction all the time.
Fourth, referring to fig. 7 and 8, there is shown a center longitudinal force test connection structure for performing a tire center longitudinal force elastic motion test: the base part of the corner disc 4 is fixedly installed, the telescopic end of the actuator 5 is hinged with the side part of the tire center of the tire simulation structure 3, the base end of the actuator 5 is installed on the sliding rail 6 and can slide along the sliding rail 6 in the Y-axis direction, and the telescopic direction of the actuator 5 is parallel to the X-axis direction. In this way, the elastic motion test of the lateral force of the center of the tire can be loaded and realized through the extension or the shortening of the actuator 5; and in the test loading process, the corner disc 4 can be automatically decoupled, and meanwhile, the actuator 5 can automatically and slightly slide along the slide rail 6 in the Y-axis direction, so that the actuator 5 is ensured to be loaded along the X-direction all the time.
Fifth, referring to fig. 9 and 10, a center side force test connection structure for performing a tire center side force elastic motion test is shown: the base part of the corner disc 4 is fixedly installed, the telescopic end of the actuator 5 is hinged with the side part of the tire center of the tire simulation structure 3, the base end of the actuator 5 is installed on the sliding rail 6 and can slide along the sliding rail 6 in the X-axial direction, and the telescopic direction of the actuator 5 is parallel to the Y-axial direction. In this way, the elastic motion test of the lateral force of the center of the tire can be loaded and realized through the extension or the shortening of the actuator 5; and in the test loading process, the corner disc 4 can be automatically decoupled, and meanwhile, the actuator 5 can automatically and slightly slide along the sliding rail 6 in the X axial direction, so that the actuator 5 is ensured to be loaded along the Y direction all the time.
In addition, the X-axis direction, the Y-axis direction, and the Z-axis direction mentioned in the present invention correspond to directions corresponding to the X-axis direction, the Y-axis direction, and the Z-axis direction in the cartesian coordinate system, respectively; the X-axis is the front-back direction corresponding to the suspension module 2 and the front-back direction corresponding to the travelling crane; the Y-axis direction is perpendicular to the X-axis direction and is parallel to the rolling axis direction of the tire simulation structure 3; the Z-axis is the vertical direction. Reference is also made in particular to the X Y Z coordinate system given in the drawings of the description of the invention.
More specifically, for easy disassembly, the telescopic end of the actuator 5 in the invention is detachably connected with the middle part of the lower surface of the base part of the corner disc 4 through a threaded connection structure, and a nut can be correspondingly arranged on the lower surface of the base part of the corner disc 4, and meanwhile, a connector structure with a section of thread section is arranged at the telescopic end of the actuator 5.
In addition, the actuator 5 of the present invention is a device for loading, and may be a conventional telescopic cylinder, a telescopic hydraulic cylinder, or a telescopic electric cylinder.
In addition, the telescopic end of the actuator 5 can be provided with a corresponding matched detachable joint structure, so that the telescopic end of the actuator 5 can be reused in the connecting structure corresponding to various different tests only by replacing the joint of the telescopic end of the actuator 5. As mentioned above, in the present invention, the connector with a section of thread may be provided at the telescopic end of the actuator 5, and the connector with a section of thread may be detachably connected to the telescopic end of the actuator 5, and after the connector is detached and replaced with another connector with a hinge structure, the connector with a hinge structure may be hinged to the grounding point of the tire simulation structure 3 or the side portion of the center of the tire, so as to realize multiple purposes of the actuator 5.
In addition, without loss of generality, the telescopic end of the actuator 5 in the present invention is hinged to the ground point of the tire simulation structure 3 or the side portion of the tire center, and accordingly, it is necessary to provide a connection structure necessary for the hinged connection, for example, a hinge hole structure or the like, on the side portion of the ground point of the tire simulation structure 3 and on the side portion of the tire center. More specifically, for the above hinged connection, the present invention may be preferably set to be a spherical hinge connection, so as to allow the tire simulation structure 3 and the actuator 5 to have a better movable relationship after the spherical hinge connection; in the second connecting structure and the third connecting structure, the actuator 5 and the sliding rail 6 are rotated 90 degrees around the Z axis of the spherical hinge joint, so that the second connecting structure and the third connecting structure can be switched; and in the fourth connecting structure and the fifth connecting structure, the actuator 5 and the sliding rail 6 are rotated 90 degrees around the Z axis of the spherical hinge joint, so that the fourth connecting structure and the fifth connecting structure can be switched; the switching of the connection structure required by the corresponding test can be simpler and more convenient.
In addition, the invention also provides a suspension K & C characteristic test method based on the suspension module, and by adopting the suspension K & C characteristic test structure based on the suspension module, the invention can perform the following tests according to the requirement:
the same-direction wheel jump motion test adopts the first connecting structure in the invention, then adjusts the suspension gesture to the design position and preloads the contact load between the tire simulation structure 3 and the corner disc 4 to achieve the initial load state; then, two actuators 5 on two sides of the suspension module 2 synchronously carry out the loading of the same-direction extension or shortening, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the reverse wheel jump motion test adopts a first connecting structure, adjusts the suspension posture to a design position and preloads the contact load between the tire simulation structure 3 and the corner disc 4 to achieve an initial load state; then, two actuators 5 on two sides of the suspension module 2 synchronously carry out reverse extension or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the steering wheel jump motion test adopts a first connecting structure, adjusts the suspension posture to a design position and preloads the contact load between the tire simulation structure 3 and the corner disc 4 to achieve an initial load state; then simulating steering wheel angle input through a suspension module 2, recording steering wheel angles after each rotation, and simultaneously measuring and recording the tire center and the tire center plane by using a three-coordinate measuring instrument;
the ground point longitudinal force elastic motion test adopts a second connecting structure, adjusts the posture of a suspension to a design position and preloads the contact load between the tire simulation structure 3 and the corner disc 4 to achieve an initial load state; then the actuator 5 carries out the extension or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the grounding point lateral force elastic motion test adopts a third connecting structure, adjusts the posture of a suspension to a design position and preloads the contact load between the tire simulation structure 3 and the corner disc 4 to achieve an initial load state; then the actuator 5 carries out the extension or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the tire center longitudinal force elastic motion test adopts a second connecting structure, adjusts the suspension posture to a design position and preloads the contact load between the tire simulation structure 3 and the corner disc 4 to achieve an initial load state; then the actuator 5 carries out the extension or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the tire center lateral force elastic motion test adopts a third connecting structure, adjusts the suspension posture to a design position and preloads the contact load between the tire simulation structure 3 and the corner disc 4 to achieve an initial load state; the actuator 5 then carries out an extended or shortened load, after each load the load displacement and load are recorded, and simultaneously the tire centre and the tire centre plane are measured and recorded with a three-coordinate measuring machine.
The contact load between the preloaded tire simulation structure 3 and the corner disc 4 can reach an initial load state, and the contact load can be realized by adjusting the height of the test bed 1, weighting the suspension module 2 and lifting the position of the corner disc 4. Of course, if the first connecting structure of the present invention is assembled, the pre-load can be directly achieved by controlling the expansion and contraction of the actuator 5. In the case of several other connection structures, this can be achieved by adjusting the height of the test bench 1 or weighting the suspension module 2 or adjusting the position of the corner plate 4 in a lifting manner, and when this is achieved by adjusting the position of the corner plate 4 in a lifting manner, the base portion of the corner plate 4 should be fixedly mounted to a mechanism capable of lifting adjustment; of course, if the preloading is not required by lifting the corner plate 4, the corner plate 4 may be directly fixedly mounted, such as by providing a mounting support structure for the fixed mounting of the corner plate 4.
In addition, in all test processes, a step-by-step loading mode can be preferably adopted for the extension or shortening of the actuator 5, and corresponding data recording can be carried out during each stage of loading; thus, the test results can be obtained more accurately and continuously by step-by-step loading and recording.

Claims (7)

1. Suspension K & C characteristic test structure based on suspension module, its characterized in that: including test bench (1), suspension module (2), tire analog structure (3), corner dish (4) and actuator (5), install a tire analog structure (3) on the tire installation terminal surface of suspension module (2) both sides respectively, suspension module (2) are installed on test bench (1), and tire analog structure (3) unsettled setting of suspension module (2) both sides is provided with a corner dish (4) under every tire analog structure (3), corner dish (4) are including the rotating part that is located upper portion and the basal portion that is located the lower part, the surface of the rotating part of corner dish (4) and the bottom contact cooperation of tire analog structure (3), correspond for every tire analog structure (3) and be equipped with an actuator (5), actuator (5) are the mechanism that can concertina movement, actuator (5) are including flexible end and basal end, wherein through the cooperation of different connections between tire analog structure (3), corner dish (4) and actuator (5) three can form several kinds of different required connection structures as follows:
first, three test connection structures for performing a homozygosity wheel jump motion test, a reverse wheel jump motion test and a steering motion test: the telescopic end of the actuator (5) is connected with the middle part of the lower surface of the base part of the corner disc (4), the base end of the actuator (5) is supported on the ground or the test bench (1) downwards along the Z-axis direction, and the telescopic direction of the actuator (5) is parallel to the Z-axis direction;
second, a ground point longitudinal force test connection structure for performing a tire ground point longitudinal force elastic motion test: the base part of the corner disc (4) is fixedly installed, the telescopic end of the actuator (5) is hinged with the side part of the grounding point of the tire simulation structure (3), the base end of the actuator (5) is installed on the sliding rail (6) and can slide along the sliding rail (6) in the Y-axis direction, and the telescopic direction of the actuator (5) is parallel to the X-axis direction;
third, a ground point lateral force test connection structure for performing a tire ground point lateral force elastic motion test: the base part of the corner disc (4) is fixedly installed, the telescopic end of the actuator (5) is hinged with the side part of the grounding point of the tire simulation structure (3), the base end of the actuator (5) is installed on the sliding rail (6) and can slide along the sliding rail (6) in the X axial direction, and the telescopic direction of the actuator (5) is parallel to the Y axial direction;
fourth, a center longitudinal force test connection structure for performing a tire center longitudinal force elastic motion test: the base part of the corner disc (4) is fixedly installed, the telescopic end of the actuator (5) is hinged with the side part of the tire center of the tire simulation structure (3), the base end of the actuator (5) is installed on the sliding rail (6) and can slide along the sliding rail (6) in the Y-axis direction, and the telescopic direction of the actuator (5) is parallel to the X-axis direction;
fifth, a center lateral force test connection structure for performing a tire center lateral force elastic motion test: the base part of the corner disc (4) is fixedly installed, the telescopic end of the actuator (5) is hinged with the side part of the tire center of the tire simulation structure (3), the base end of the actuator (5) is installed on the sliding rail (6) and can slide along the sliding rail (6) in the X axial direction, and the telescopic direction of the actuator (5) is parallel to the Y axial direction;
wherein the X-axis, the Y-axis and the Z-axis respectively correspond to the directions corresponding to the X-axis, the Y-axis and the Z-axis in the Cartesian coordinate system; the X-axis is the front-back direction corresponding to the suspension module (2) and the front-back direction corresponding to the travelling crane; the Y-axis is perpendicular to the X-axis and parallel to the rolling axis of the tire simulation structure (3); the Z-axis is the vertical direction.
2. The suspension K & C characteristic test structure based on the suspension module according to claim 1, wherein: the telescopic end of the actuator (5) is detachably connected with the middle part of the lower surface of the base part of the corner disc (4) through a threaded connection structure.
3. The suspension K & C characteristic test structure based on the suspension module according to claim 1, wherein: in the second connecting structure and the third connecting structure, the telescopic end of the actuator (5) is connected with the side part of the grounding point of the tire simulation structure (3) through a spherical hinge, and the actuator (5) and the sliding rail (6) are rotated 90 degrees around the Z axis of the spherical hinge connection part, so that the second connecting structure and the third connecting structure can be switched.
4. The suspension K & C characteristic test structure based on the suspension module according to claim 1, wherein: in the fourth connecting structure and the fifth connecting structure, the telescopic end of the actuator (5) is connected with the side part of the tire center of the tire simulation structure (3) through a spherical hinge, and the actuator (5) and the sliding rail (6) are rotated 90 degrees around the Z axis of the spherical hinge connection part, so that the fourth connecting structure and the fifth connecting structure can be switched.
5. The suspension K & C characteristic test structure based on the suspension module according to claim 1, wherein: the actuator (5) is a telescopic cylinder, a telescopic hydraulic cylinder or a telescopic electric cylinder.
6. Suspension K & C characteristic test method based on suspension module, adopt the suspension K & C characteristic test structure based on suspension module of any one of the preceding claims 1 to 5, characterized by: the following tests are included:
the same-direction wheel jump motion test adopts a first connecting structure, adjusts the posture of a suspension to a design position and preloads the contact load between a tire simulation structure (3) and a corner disc (4) to achieve an initial load state; then, two actuators (5) on two sides of the suspension module (2) synchronously carry out the loading of the same-direction extension or shortening, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the reverse wheel jump motion test adopts a first connecting structure, adjusts the posture of a suspension to a design position and preloads the contact load between a tire simulation structure (3) and a corner disc (4) to achieve an initial load state; then, two actuators (5) on two sides of the suspension module (2) synchronously carry out reverse extension or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the steering wheel jump motion test adopts a first connecting structure, adjusts the suspension posture to a design position and preloads the contact load between the tire simulation structure (3) and the corner disc (4) to achieve an initial load state; then simulating steering wheel angle input through a suspension module (2), recording steering wheel angles after each rotation, and simultaneously measuring and recording the tire center and the tire center plane by using a three-coordinate measuring instrument;
the ground point longitudinal force elastic motion test adopts a second connecting structure, adjusts the posture of a suspension to a design position and preloads the contact load between a tire simulation structure (3) and a corner disc (4) to achieve an initial load state; then, the actuator (5) carries out the extension or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the grounding point lateral force elastic motion test adopts a third connecting structure, adjusts the posture of a suspension to a design position and preloads the contact load between a tire simulation structure (3) and a corner disc (4) to achieve an initial load state; then, the actuator (5) carries out the extension or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the tire center longitudinal force elastic motion test adopts a second connecting structure, adjusts the suspension posture to a design position and preloads the contact load between the tire simulation structure (3) and the corner disc (4) to achieve an initial load state; then, the actuator (5) carries out the extension or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument;
the tire center lateral force elastic motion test adopts a third connecting structure, adjusts the suspension posture to a design position and preloads the contact load between the tire simulation structure (3) and the corner disc (4) to achieve an initial load state; and then the actuator (5) carries out the extension or shortening loading, the loading displacement and the loading are recorded after each loading, and simultaneously, the tire center and the tire center plane are measured and recorded by a three-coordinate measuring instrument.
7. The suspension K & C characteristic test method based on the suspension module according to claim 6, wherein: in all test processes, the actuator (5) is subjected to extension or shortening loading in a step-by-step loading mode.
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