CN215811666U - Test apparatus - Google Patents

Abstract

The embodiment of the application provides a test device. The test equipment comprises a bracket, a loading device and an impact device. The loading device is arranged on the support and used for being connected with the suspension, wheels are mounted on the suspension, and the loading device is used for applying load to the suspension. The impact device is arranged on the support and comprises a base and an impact piece, the base is installed on the support, one end of the impact piece is rotatably installed on the base, the other end of the impact piece impacts the wheel when the impact piece swings, so that load is applied to the suspension through the wheel, and the swinging direction of the impact piece is the same as the radial direction of the wheel. The loading device is used for loading the suspension, and the impact piece swings to carry out durable impact on the wheel, so that the scene of the vehicle when the vehicle is impacted in the running process can be effectively simulated. Through the operating mode that detects the suspension, verify the intensity of each spare part of suspension in advance, prevent when the vehicle receives great external impact, the suspension breaks down and produces the accident.

Description

Test apparatus

Technical Field

The application relates to the field of automobiles, in particular to a test device.

Background

In the driving process of an automobile, the suspension is deformed due to large external impact, and the suspension is broken under severe conditions, so that the risk of accidents is increased. Therefore, in the early stage of research and development, how to perform relevant tests on the suspension to prevent the suspension from breaking and other defects caused by large external impact during the driving process of a vehicle becomes an urgent technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a test device and a test method.

The test equipment of the embodiment of the application comprises a support, a loading device and an impact device. The loading device is arranged on the bracket and is used for connecting the suspension, wheels are arranged on the suspension, and the loading device is used for applying load to the suspension. The impact device is arranged on the support and comprises a base and an impact piece, the base is arranged on the support, one end of the impact piece is rotatably arranged on the base, the other end of the impact piece impacts the wheel when the impact piece swings, so that a load is applied to the suspension through the wheel, and the swinging direction of the impact piece is the same as the radial direction of the wheel.

In this way, the loading device is used for loading the suspension, and the impact piece swings to impact the wheel with high strength and durability, so that the scene of the vehicle when being impacted in the running process can be effectively simulated. And subsequently, the strength of each part of the suspension is verified in advance by detecting the working condition of the suspension, so that the suspension is prevented from being broken down to generate accidents when a vehicle is subjected to large external impact.

In some embodiments, the brace includes a first upright, a second upright, and a cross-member. The crossbeam is installed on the first stand, the second stand with first stand interval sets up, loading device installs on the second stand, impact device's quantity is a plurality of, the pedestal mounting first stand with on at least one in the crossbeam.

In some embodiments, the first upright is formed with a first adjustment structure that is capable of adjusting the height of the base on the first upright when the base is mounted on the first upright.

In some embodiments, the cross beam is formed with a second adjustment structure that is capable of adjusting the horizontal position of the base on the cross beam when the base is mounted on the cross beam.

In some embodiments, the loading device includes an actuator mounted on the bracket and a mount coupled to the actuator, the mount coupled to a shock absorber of the suspension, the actuator configured to apply the load to the wheel through the mount and the shock absorber.

In some embodiments, the actuator and the mounting are connected by a movable articulation member, the mounting being movable relative to the actuator.

In some embodiments, the number of the striking elements is plural, and an angle between a swinging direction of each striking element and a traveling direction of the wheel is different.

In some embodiments, a steering tie bar and a control arm are disposed on the suspension, the testing apparatus includes a first support member and a second support member spaced apart from the first support member, the first support member is connected to the steering tie bar, the second support member is connected to the control arm, and both the first support member and the second support member are spaced apart from the bracket.

In some embodiments, the first support includes a first connecting member, a first moving member, and a first support seat, the first connecting member is connected to the steering link, the first moving member is movably connected to the first connecting member by a joint structure, the first moving member is inserted into the first support seat, and the first moving member is capable of moving up and down relative to the first support seat; and/or the presence of a gas in the gas,

the second support piece comprises a second connecting piece, a second moving piece and a second supporting seat, the second connecting piece is connected with the control arm, the second moving piece is movably connected with the second connecting piece through a joint structure, the second moving piece is inserted in the second supporting seat, and the second moving piece can move up and down relative to the second supporting seat.

The embodiment of the application provides a test method, which comprises the following steps:

providing a test device;

providing a suspension with a wheel;

mounting the suspension on the bracket, and enabling the wheel to be consistent with the height of one end of the impact piece;

controlling the loading device to apply a load to the wheel;

and controlling the impact piece to swing towards the wheel to impact the wheel.

In some embodiments, when the number of the striking elements is plural, an angle between a swinging direction of each striking element and a traveling direction of the wheel is different, and the controlling of the striking elements to swing toward the wheel to strike the wheel includes:

and controlling each impact piece to swing towards the wheel to impact the wheel.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a test apparatus according to an embodiment of the present application;

FIG. 2 is a schematic plan view of the structure of a test apparatus according to an embodiment of the present application;

FIG. 3 is a schematic plan view of another angle of the structure of the test apparatus of the embodiment of the present application;

FIG. 4 is a schematic structural diagram of a loading device according to an embodiment of the present application;

FIG. 5 is a schematic plan view of another angle of construction of the test apparatus of an embodiment of the present application;

FIG. 6 is a schematic structural view of a suspension according to an embodiment of the present application;

FIG. 7 is a further schematic view of the test apparatus of an embodiment of the present application;

FIG. 8 is a schematic structural view of a first support member according to an embodiment of the present application;

FIG. 9 is a schematic structural view of a second support member according to an embodiment of the present application;

fig. 10 is a schematic flow chart of an assay method according to an embodiment of the present application.

Description of the main element symbols:

the test device 10, the bracket 11, the first upright 111, the first adjustment structure 1111, the second upright 112, the cross beam 113, the second adjustment structure 1131, the loading device 12, the actuator 121, the mounting seat 122, the movable joint part 123, the striking device 13, the base 131, the shaft 1311, the striking piece 132, the rotating disk 1321, the connecting rod 1322, the striking block 1323, the first striking piece 1324, the second striking piece 1325, the third striking piece 1326, the first support 14, the first connecting piece 141, the first movable piece 142, the first support seat 143, the second support 15, the second connecting piece 151, the second movable piece 152, the second support seat 153, the suspension 20, the wheel 21, the shock absorber 22, the steering rod 23, the control arm 24, the wheel cover 25, the brake 26, and the knuckle 27.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to 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; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1, a test apparatus 10 according to an embodiment of the present application is used to test a suspension 20 of a vehicle. The test apparatus 10 includes a bracket 11, a loading device 12, and an impact device 13. The loading device 12 is arranged on the bracket 11, the loading device 12 is used for connecting a suspension 20, a wheel 21 is arranged on the suspension 20, and the loading device 12 is used for applying load to the wheel 21 through the suspension 20.

The impact device 13 is arranged on the bracket 11, the impact device 13 comprises a base 131 and an impact member 132, the base 131 is arranged on the bracket 11, one end of the impact member 132 is rotatably arranged on the base 131, the other end of the impact member 132 impacts the wheel 21 when the impact member 132 swings, so as to apply load to the suspension 20 through the wheel 21, and the swinging direction of the impact member 132 is the same as the radial direction of the wheel 21.

The test apparatus 10 according to the embodiment of the present application can effectively simulate a situation in which the vehicle receives an impact during traveling by applying a load to the suspension 20 by the loading device 12 and swinging the impact member 132 to apply a strong and durable impact to the wheel 21. The shock piece 132 applies strong and durable load excitation to the wheel 21 at the time of swing shock, and transmits the excitation to each part of the suspension 20. By detecting the working condition of the suspension 20, the strength and reliability of each part of the suspension 20 are verified in advance, and accidents caused by faults of the suspension 20 when a vehicle is subjected to large external impact are prevented. Specifically, the suspension 20 is a generic term of a connection device between a vehicle body and a wheel 21 of a vehicle, and the suspension 20 is mainly used for transmitting force and torque acting between the wheel 21 and a vehicle frame, and buffering impact force transmitted to the vehicle body from an uneven road surface, and reducing vibration caused by the impact force, so as to ensure that the vehicle can run smoothly and meet the driving stability of the vehicle.

The suspension 20 may be a wishbone suspension, a multi-link suspension, or a torsion beam dependent suspension, and is not limited herein. Proper matching of the suspension 20 is critical to the performance criteria of the vehicle, and if the suspension 20 is too soft, it is detrimental to the steering system stability, and if the suspension 20 is too hard, it is likely to cause fatigue to the driver. The loading device 12 may apply a load to the wheel 21 through the suspension 20. Further, in the present embodiment, in order to make the test process easier to operate, one quarter of the suspension 20 may be selected for the test. The verification of equivalent replacement of the whole vehicle can be realized by loading the suspension 20, so that the cost of the vehicle and the test cost are saved.

The loading device 12 is arranged on the bracket 11 of the test device 10, and the state of the vehicle in the actual running process can be simulated by changing the load applied to the suspension 20 by the loading device 12. For example, a full-load state of the vehicle, a half-load state of the vehicle, and an unloaded state of the vehicle, that is, a no-load state, may be simulated. Thus, the subsequent impact on the wheel 21 can verify the strength of the suspension 20 after receiving the external impact when the vehicle is under different loads.

The base 131 of the impact device 13 is mounted on the bracket 11, so that the impact device 13 is ensured not to fall off during the impact process, which causes danger. A shaft 1311 (as shown in fig. 2) is disposed on the base 131, and one end of the impact member 132 is rotatably mounted on the shaft 1311 of the base 131, so that the impact member 132 can rotate around the shaft 1311 of the base 131 by a certain angle, and the impact member 132 has a swinging property. The other end of the striking element 132 strikes the wheel 21 during the oscillation, it being noted that the oscillation direction of the striking element 132 coincides with the radial direction of the wheel 21. In some embodiments, the impact member 132 may be made of a metal material or an alloy material.

Referring to fig. 2 and 3, in some embodiments, the impact member 132 may include a rotating disc 1321, a connecting rod 1322 and an impact block 1323. The rotating disc 1321 and the impact block 1323 may be connected by a connecting rod 1322. The rotating disk 1321 is formed with a through hole to be rotatably mounted with the shaft 1311 of the base 131. Specifically, the shape of the impact block 1323 may be a circular disk, a square, a rectangular parallelepiped, or the like, which is not limited herein. When the rotating disc 1321 rotates around the shaft 1311 of the base 131 for a certain angle, the connecting rod 1322 can drive the impact block 1323 to swing.

Thus, the potential energy of the impact member 132 can impact the wheel 21 when the impact member 132 swings and falls. During the test, the swinging impact member 132 impacts the wheel 21 to simulate a scene in which the vehicle is subjected to an external impact during running.

Referring to fig. 1, in some embodiments, the support 11 includes a first upright 111, a second upright 112, and a cross beam 113. The cross beam 113 is installed on the first upright column 111, the second upright column 112 is arranged at an interval with the first upright column 111, the loading device 12 is installed on the second upright column 112, the number of the impact devices 13 is multiple, and the base 131 is installed on at least one of the first upright column 111 and the cross beam 113.

The number of the first upright posts 111 may be two, and the two first upright posts 111 are arranged in parallel and spaced apart. One end of the cross beam 113 is disposed at the top end of one of the first upright columns 111, and the other end is disposed at the top end of the other first upright column 111. There is an impact device 13 in which a base 131 may be provided on the first upright 111. There are impact devices 13 in which the base 131 may be provided on the beam 113.

In some embodiments, the second upright 112 has a chute structure in which the loading device 12 is mounted such that the height of the loading device 12 can be adjusted up and down in the chute structure.

Referring to fig. 2, in some embodiments, the first upright 111 is formed with a first adjustment structure 1111, and the first adjustment structure 1111 can adjust the height of the base 131 on the first upright 111 when the base 131 is mounted on the first upright 111.

Illustratively, the first adjustment structure 1111 may be a sliding groove structure. The base 131 may be mounted in a chute structure. Thus, when the base 131 is mounted on the first column 111, the striking element 132 mounted on the base 131 can move up and down together with the base 131. During testing, the height of the impact block 1323 of the impact member 132 is adjusted to be level with the wheel 21.

Referring again to FIG. 1, in some embodiments, the beam 113 is formed with a second adjustment structure 1131, and the second adjustment structure 1131 can adjust the horizontal position of the base 131 on the beam 113 when the base 131 is mounted on the beam 113.

Illustratively, the second adjustment structure 1131 may be a sliding slot structure. The base 131 may be mounted in a chute structure of the second adjustment structure 1131. In this way, when the base 131 is attached to the cross member 113, the impact member 132 attached to the base 131 can also move in the horizontal direction together with the base 131.

Referring to fig. 3 and 4, in some embodiments, the loading device 12 includes an actuator 121 and a mounting seat 122. The mounting seat 122 is connected with the actuator 121, the actuator 121 is mounted on the bracket 11, and the mounting seat 122 is connected with the shock absorber 22 of the suspension 20. The actuator 121 is used to apply a load to the suspension 20 through the mount 122 and the shock absorber 22.

Specifically, the actuator 121 may be a liquid actuator or a gas actuator. The actuator 121 is a mechanical device having a working stroke during operation, and the magnitude of the working stroke determines the magnitude of the biasing force that can be applied by the actuator 121. The actuator 121 is mounted on the cross beam 113 of the bracket 11, and the actuator 121 can apply a loading force in the vertical direction.

Further, the actuator 121 and the mounting seat 122 may be connected together by a movable joint member 123, and the mounting seat 122 may be movable relative to the actuator 121.

The actuator 121 is connected with the upper end of the mounting seat 122 through the hinge joint of the movable joint part 123. The movable joint part 123 may be a ball head rod, and the main material may be zinc alloy, nylon, or stainless steel.

Because the movable joint part 123 is partially spherical, the movable joint part 123 can also rotate angularly when connecting the actuator 121 and the mounting seat 122, so as to adjust the loading angle of the shock absorber 22. The movable joint part 123 improves the flexibility of the mounting position of the actuator 121, so that the first actuator 121 can arrange the mounting position according to the limit stroke of the first actuator, thereby improving the size range of the loading applied by the actuator 121, and further improving the test range of the test equipment 10.

The shock absorber 22 is used to suppress the shock of the spring absorbing the shock and the impact from the road surface, and is commonly used in the automobile field to improve the ride comfort of the automobile. Shock absorber 22 is primarily intended to be both hydraulic and pneumatic in terms of the damping material to be produced, as well as a variable damping shock absorber. Mount 122 has a cavity configuration to facilitate connection with shock absorber 22 of suspension 20. In this manner, the shock absorber 22 of the suspension 20 can be mounted and fixed through the cavity structure of the mounting seat 122.

The upper end of the mounting seat 122 is connected with the actuator 121 through the hinge joint of the movable joint part 123, and the shock absorber 22 of the suspension 20 is mounted and fixed in the cavity of the mounting seat 122. In this way, the actuator 121 can apply the loading force to the suspension 20, and the angle of the movable joint part 123 can be rotated, so that not only the loading angle of the shock absorber 22 can be adjusted, but also the magnitude of the loading force applied by the actuator 121 can be changed.

Referring to fig. 1 and 5, in some embodiments, the number of the striking members 132 is multiple, and an angle between the swinging direction of each striking member 132 and the traveling direction of the wheel 21 is different.

Specifically, in order to simulate the impact applied to the vehicle during actual driving more vividly, the impact may be applied to the wheel 21 in multiple directions during the test. Illustratively, the number of the shock pieces is 3, and when the shock pieces swing against and impact the wheel 21, the angle between the swinging direction of each shock piece and the traveling direction of the wheel 21 may be 45 °, 90 °, and 135 °.

In some embodiments, the impact member 132 having an angle of 45 ° between the swinging direction and the driving direction of the wheel 21 is a first impact member 1324, and the base 131 connected with the first impact member 1324 is mounted on the first upright 111; the impact piece 132 with an included angle of 90 degrees between the swinging direction and the driving direction of the wheel 21 is a second impact piece 1325, and the base 131 connected with the second impact piece 1325 is arranged on the cross beam 113; the striking element 132, which has an angle of 135 ° between the swing direction and the traveling direction of the wheel 21, is a third striking element 1326, and the base 131 connected to the third striking element 1326 is mounted on the other first column 111.

In the process of mounting the impact member 132, according to the state that the automobile suspension 20 is mounted on the vehicle, a ground line where the wheel 21 contacts the ground is marked, then angle lines forming 45 °, 90 ° and 135 ° with the traveling direction of the wheel 21 are marked, and the impact member 132 is mounted at the positions of the angle lines of 45 °, 90 ° and 135 °. Since the first and third striking members 1324 and 1326 are disposed on both sides of the second striking member 1325, in order to ensure that the striking member 132 can be smoothly installed, the second striking member 1325 may be installed first, and then the first and third striking members 1324 and 1326 may be installed.

It should be noted that in some embodiments, the number of impingement members 132 may also be 2, 4, 5, or 7, etc.; the angle between the swinging direction of each impact member 132 and the traveling direction of the wheel 21 may also be 0 °, 15 °, 25 °, 75 °, 165 °, or the like, and the number of impact members 132 and the size of the angle between the swinging direction of each impact member 132 and the traveling direction of the wheel 21 are not limited.

Since the swinging impact members 132 impact the wheel 21 during the test to simulate the impact of the vehicle during the driving process, the number of the impact members 132 can better simulate the complex conditions encountered by the vehicle during the actual conditions. After the wheel 21 receives the impact from the impact member 132, the suspension 20 is inspected to prevent the suspension 20 from deforming or breaking due to the large external impact during the running of the vehicle in real environment.

Referring to fig. 6 and 7, in some embodiments, the suspension 20 is provided with a steering rod 23 and a control arm 24, the testing apparatus 10 further includes a second support 15 disposed between the first support 14 and the second support 14 at an interval, the first support 14 is connected to the steering rod 23, the second support 15 is connected to the control arm 24, and both the first support 14 and the second support 15 are disposed at an interval to the bracket 11.

The tie rod 23 is an important part in the steering structure of the automobile, and the tie rod 23 affects the steering stability, the running safety and the service life of the tire of the automobile. The steering tie rod 23 is mainly divided into a steering drag rod and a tie rod. The control arm 24 acts as a guiding and force-transmitting element in the suspension 20 and transmits the force acting on the wheel 21 to the body while ensuring that the wheel 21 moves in a certain trajectory. In this way, the load applied to the wheel 21 by the actuator 121 can be transmitted to the suspension 20 via the control arm 24. The control arm 24 of the suspension 20 and the steering rod 23 can be fixed by connecting the first support member 14 to the steering rod 23 and connecting the second support member 15 to the control arm 24.

Therefore, the control arm 24 and the steering rod 23 of the suspension 20 are fixedly installed by the first supporting piece 14 and the second supporting piece 15, the platform of the rack tool for installing the suspension 20 can be realized, and the tool cost is saved.

Referring to fig. 2 and 8, in some embodiments, the first support 14 includes a first connecting member 141, a first movable member 142, and a first support base 143. The first link 141 is connected to the tie rod 23. The first movable member 142 is movably connected to the first connecting member 141 by a joint structure. First movable member 142 is inserted in first support base 143, and first movable member 142 is movable up and down with respect to first support base 143.

Referring to fig. 2 and 9, in some embodiments, the second supporting member 15 includes a second connecting member 151, a second movable member 152, and a second supporting seat 153. The second link 151 is connected to the control arm 24. The number of the second supporting pieces is 2. The second movable member 152 is movably connected to the second connecting member 151 through an articulated structure. The second movable member 152 is inserted into the second support base 153, and the second movable member 152 can move up and down relative to the second support base 153.

The first movable member 142 and the second movable member 152 may be ball joint rods, and the first connecting member 141 may be connected to a ball joint of the first movable member 142. Second link 151 may be hingedly connected to the ball of second movable member 152. So that the first and second connection members 141 and 151 can be rotated. In this way, the first support 14 and the second support 15 can be adjusted in position according to the mounting points of the steering tie rod 23 and the control arm 24, respectively.

The lower end of the first movable member 142 may be a screw structure, the first supporting seat 143 is formed with threads, and the first movable member 142 may be threadedly coupled to the first supporting seat 143. The lower end of the second movable member 152 may be a screw structure, the second support seat 153 is formed with a screw thread, and the second movable member 152 may be connected with the second support seat 153 by the screw thread. Thus, the length of the base 131, the first movable member 142 and the second movable member 152 can be adjusted, so that the length of the first support 14 and the second support 15 can be adjusted.

Referring again to fig. 6, in some embodiments, the suspension 20 further includes a wheel cover 25, a brake 26, and a knuckle 27. The wheel cover 25 is a cast member, and is mounted on the outer side of the wheel 21 concentrically with the wheel 21. The wheel cover 25 is an important part of vehicle parts, and not only can play a role in decorating the wheel 21, but also can prevent stones and soil from splashing to pollute the vehicle body, and also can play a role in absorbing sound and reducing noise.

The brake 26 is a component of a braking system of a vehicle that generates braking forces that resist movement or tendencies of movement of the vehicle. The brake 26 generates a braking torque by friction of a fixed member with a working surface of a rotating member, and the brake 26 may be classified into a drum type and a disc type according to the rotating member. The rotary element in the drum brake friction pair is a brake drum, and the cylindrical surface is used as a working surface; the rotating element in the friction pair of the disc brake is a disc-shaped brake disc, and the end face is used as a working surface.

The knuckle 27 is a component that enables the vehicle to stably travel and sensitively transmit the traveling direction. The knuckle 27 is connected to the vehicle body through a bushing and a bolt, and is connected to the brake system through a mounting hole of the brake 26. The knuckle 27 receives the load applied to the front of the vehicle and supports and rotates the front wheel 21 about the kingpin to steer the vehicle.

Referring to fig. 10, an embodiment of the present application provides a testing method, including:

s10: providing a test apparatus 10;

s20: providing a suspension 20 with wheels 21;

s30: mounting the suspension 20 on the bracket 11 with the wheel 21 at the same height as one end of the shock 132;

s40: controlling the loading device 12 to apply a load to the wheel 21;

s50: the impact member 132 is controlled to swing toward the wheel 21 to impact the wheel 21.

Specifically, in step S10, the tester needs to provide the test apparatus 10 described above, and the test apparatus 10 is mainly used for testing the suspension 20 of the vehicle. In some embodiments, the entire test apparatus 10 may be disposed on a relatively stable platform or may be disposed on the ground. The stable platform or floor provides a stable testing environment for the test apparatus 10.

In step S20, the test operator needs to provide the suspension 20 with the wheels 21, so that the test process can be easier to operate, the entire suspension 20 of the vehicle may not be used, and for example, one-fourth of the suspensions 20 may be used for the test.

In step S30, the ground line on which the wheel 21 is in contact with the ground is marked according to the state in which the vehicle suspension 20 is mounted on the vehicle, a line at a predetermined angle with respect to the traveling direction of the wheel 21 is marked, and the impact member 132 is mounted at a predetermined angular line position. The suspension 20 is fixedly mounted on the second upright 112, the steering rod 23 of the suspension 20 is connected with the first support 14, and the control arm 24 of the suspension 20 is connected with the second support 15. After fixing the position of the suspension 20, the height of the impact device 13 is adjusted so that the impact block 1323 of the impact member 132 coincides with the height of the wheel 21.

In step S40, the loading device 12 is controlled to apply a load to the wheels 21, simulating the state of the vehicle during actual running. Different loading states of the vehicle are simulated according to the magnitude of the load applied by the loading device 12. The vehicle can be in a full-load state, a half-load state or an unloaded state.

Specifically, in step S50, the impact member 132 is controlled to swing toward the wheel 21 to collide with the wheel 21. The angle between the swinging direction of the impact member 132 and the traveling direction of the wheel 21 is controlled, so that the impact member 132 impacts the wheel 21 in different directions. In this way, the external impact scenario encountered by the vehicle during actual travel can be simulated.

In the embodiment of the present application, the test apparatus 10 applies force to the wheel 21 through the loading device 12, and performs impact on the wheel 21 in different directions through the impact piece 132, so as to effectively simulate external impact on the vehicle during running. The load due to the excitation of the wheel 21 is transmitted to the suspension 20. By detecting the condition of the suspension 20, the deformation of the suspension 20 when the vehicle is subjected to a large external impact can be avoided, and the suspension 20 can be further weakened when the vehicle is continuously used, so that the risk of accidents is increased.

In some embodiments, when the number of the striking members 132 is plural, and the angle between the swinging direction of each striking member 132 and the traveling direction of the wheel 21 is different, the swinging of the striking members 132 toward the wheel 21 to strike the wheel 21 is controlled, including:

s51: each of the striking members 132 is controlled to swing toward the wheel 21 to strike the wheel 21.

Specifically, in step S50, each of the impact members 132 is controlled to swing toward the wheel 21 to impact the wheel 21 during the test. Illustratively, the first impact member 1324, which has an angle of 45 ° between the swing direction and the traveling direction of the wheel 21, performs a plurality of impact tests on the wheel 21 at a certain speed; the second impact member 1325, which has an included angle of 90 degrees between the swing direction and the driving direction of the wheel 21, performs multiple impact tests on the wheel 21 at a certain speed; the third striking member 1326 having an angle of 135 ° between the swing direction and the traveling direction of the wheel 21 performs a plurality of times of the impact test on the wheel 21 at a certain speed.

In some embodiments, multiple impingement members 132 may be combined in pairs to simultaneously impinge on wheel 21. For example, the first and second impact members 1324 and 1325 impact the wheel 21 at the same time; the first impact member 1324 and the third impact member 1326 impact the wheel 21 at the same time; the third impact member 1326 impacts the wheel 21 simultaneously with the second impact member 1325. The number of impacts and the speed of the impacts during the impact test are not limited herein, and the specific values may be changed according to parameters such as the flatness ratio of the wheel 21.

Finally, the state of the suspension 20 is checked, and whether the suspension 20 passes the test can be judged according to the following assessment criteria: the sheet metal structure of the wheel 21, the low wind resistance wheel cover 25, the brake disc, the knuckle 27, the shock absorber 22, the steering rod 23 and the control arm 24 does not allow failure conditions such as deformation, fracture and falling. If the above criteria are simultaneously satisfied by the components of the suspension 20, it can be determined that the suspension 20 passes the test, that is, when a failure condition such as deformation, fracture, or drop occurs in the state of any component of the suspension 20, it is determined that the suspension 20 and the wheel 21 do not pass the test.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (9)

1. A test rig for testing a suspension of a vehicle, the test rig comprising:

a support;

the loading device is arranged on the bracket and is used for connecting the suspension, wheels are mounted on the suspension, and the loading device is used for applying load to the suspension;

the impact device is arranged on the support and comprises a base and an impact piece, the base is installed on the support, one end of the impact piece is rotatably installed on the base, the other end of the impact piece impacts the wheel when the impact piece swings, so that a load is applied to the suspension through the wheel, and the swinging direction of the impact piece is the same as the radial direction of the wheel.

2. The testing apparatus of claim 1, wherein the support includes a first column, a second column, and a beam, the beam is mounted on the first column, the second column is spaced apart from the first column, the loading device is mounted on the second column, the number of the impact devices is plural, and the base is mounted on at least one of the first column and the beam.

3. The testing apparatus of claim 2, wherein the first upright is formed with a first adjustment structure that is capable of adjusting the height of the base on the first upright when the base is mounted on the first upright.

4. The testing apparatus of claim 2, wherein the cross-beam is formed with a second adjustment structure that is capable of adjusting the horizontal position of the base on the cross-beam when the base is mounted on the cross-beam.

5. The test rig of claim 1, wherein the loading device includes an actuator mounted on the bracket and a mount coupled to the actuator, the mount coupled to a shock absorber of the suspension, the actuator configured to apply the load to the wheel through the mount and the shock absorber.

6. Test rig according to claim 5, wherein the actuator and the mounting are connected by a movable joint part, the mounting being movable relative to the actuator.

7. The test apparatus according to claim 1, wherein the number of the striking members is plural, and an angle between a swing direction of each of the striking members and a traveling direction of the wheel is different.

8. The test equipment as claimed in claim 1, wherein a steering tie bar and a control arm are arranged on the suspension, the test equipment comprises a first support and a second support arranged at an interval with the first support, the first support is connected with the steering tie bar, the second support is connected with the control arm, and the first support and the second support are both arranged at an interval with the bracket.

9. The test equipment as claimed in claim 8, wherein the first support member comprises a first connecting member, a first movable member and a first support base, the first connecting member is connected with the steering tie rod, the first movable member is movably connected with the first connecting member through a joint structure, the first movable member is inserted into the first support base, and the first movable member can move up and down relative to the first support base; and/or the presence of a gas in the gas,

the second support piece comprises a second connecting piece, a second moving piece and a second supporting seat, the second connecting piece is connected with the control arm, the second moving piece is movably connected with the second connecting piece through a joint structure, the second moving piece is inserted in the second supporting seat, and the second moving piece can move up and down relative to the second supporting seat.

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