A device for simulating the working state of an automobile chassis

Abstract

This invention proposes a vehicle chassis working state force simulation device, including a base station. The base station includes an annular frame base and a central lifting platform, the central lifting platform being slidably mounted in the middle of the annular frame base. A tire lifting device is slidably mounted in a groove on the annular frame base. A suspension mounting seat is fixedly mounted on the annular frame base. The suspension mounting seat is used to fixally connect the chassis suspension assembly parts. The suspension mounting seat is located above the central lifting platform. The tire lifting device is located outside the suspension mounting seat. The tire lifting device includes a second hydraulic mechanism, one end of which is fixedly connected to the annular frame base, and the other end is fixedly mounted with a brake assembly. A turntable is provided on the brake assembly. The brake assembly is used to brake the tire parts, realizing the simulation of vehicle driving and braking, reducing the scrap rate of parts, and lowering the overall vehicle development cost.

Description

Technical Field

[0001] This invention pertains to automotive chassis testing devices, and specifically relates to a device for simulating the stress on an automotive chassis during operation. Background Technology

[0002] Traditional chassis measurement only uses fixtures to inspect the static dimensions of individual parts, failing to assess the overall state of the assembled chassis. This leads to problems like chassis noise and misalignment after vehicle installation, requiring reverse analysis of part dimensions, resulting in lengthy chassis calibration times, high part scrap rates, and significantly increased vehicle development costs. To overcome this limitation, a device simulating the stress state of an automotive chassis during operation is provided. This device allows for pre-assembly measurement, analysis, and verification of parts, shortening chassis calibration time, significantly reducing part scrap rates, and lowering overall vehicle development costs. This invention also provides a novel chassis assembly installation structure that enables pre-assembly stress simulation and verification, greatly reducing part scrap rates. Summary of the Invention

[0003] To address the above problems, this invention proposes a vehicle chassis working state stress simulation device, including a base station, wherein the base station includes an annular frame base and an intermediate lifting platform, and the intermediate lifting platform is slidably installed in the middle of the annular frame base;

[0004] A tire lifting device is slidably installed in a groove on the annular frame base; there is at least one tire lifting device.

[0005] A suspension mounting base is fixedly installed on the annular frame base; the suspension mounting base is used to fix and connect the suspension assembly parts of the chassis; the suspension mounting base is located above the intermediate lifting platform;

[0006] The tire lifting device is located on the outside of the suspension mounting base.

[0007] The tire lifting device includes a second hydraulic mechanism, one end of which is fixedly connected to the annular frame base, and the other end is fixedly installed with a brake assembly to simulate the driving and braking of a vehicle.

[0008] It also includes a steering reference plate, which is fixedly mounted on the mounting base of the brake assembly, and the steering reference plate is used to detect the force on the vehicle.

[0009] Preferably, a sliding column mounting seat is fixedly installed on the annular frame base, and there is at least one sliding column mounting seat. The sliding column mounting seat is used to fix and connect the sliding column parts; the sliding column mounting seat is located on the outer side of the suspension mounting seat.

[0010] Preferably, it further includes a steering column mounting base, which is fixedly installed on the upper side of one of the slide column mounting bases; the steering column mounting base is used to fix and install steering column parts.

[0011] Preferably, the steering reference plate comprises a flat plate on which at least three measuring reference balls are provided.

[0012] Preferably, the base station further includes a first hydraulic mechanism, wherein the piston rod end of the hydraulic cylinder of the first hydraulic mechanism is mounted on the intermediate lifting platform, and the bottom end of the cylinder of the first hydraulic mechanism is fixedly mounted on the platform or on the annular frame base.

[0013] Preferably, the base station further includes a slide rail mechanism, which is divided into two parts: a slide rail and a slider. The slide rail is fixedly connected to the inner side of the annular frame base or the outer side of the intermediate lifting platform; the slider is fixedly connected to the outer side of the intermediate lifting platform or the inner side of the annular frame base; and the slider is slidably installed in the slide rail.

[0014] Preferably, a suspension auxiliary support is fixedly installed on the intermediate lifting platform; there is at least one suspension auxiliary support for placing the suspension assembly parts of the vehicle chassis.

[0015] Preferably, the first hydraulic mechanism is a hydraulic cylinder.

[0016] Preferably, it also includes a step platform, which is fixedly installed on the outside of the annular frame base; by placing the step platform, workers can easily and conveniently go up and down the base station.

[0017] The tire lifting device of the present invention includes a second hydraulic mechanism. One end of the second hydraulic mechanism is fixedly connected to an annular frame base, and the other end is fixedly mounted with a brake assembly. A turntable is provided on the brake assembly. The brake assembly is used to brake tire parts, realizing the simulation of vehicle driving and braking, reducing the scrap rate of parts, and lowering the overall vehicle development cost.

[0018] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the chassis force simulation device in an embodiment of the present invention is shown;

[0021] Figure 2 A schematic diagram of the annular frame base and the intermediate lifting platform in an embodiment of the present invention is shown;

[0022] Figure 3 A schematic diagram of the annular frame base and slide rail mechanism in an embodiment of the present invention is shown;

[0023] Figure 4 This diagram illustrates the installation of chassis suspension assembly components on suspension auxiliary support seats in an embodiment of the present invention.

[0024] Figure 5 A schematic diagram of the tire lifting device in an embodiment of the present invention is shown;

[0025] Figure 6 A schematic diagram of a suspension mounting bracket in an embodiment of the present invention is shown;

[0026] Figure 7 A schematic diagram of the sliding column mounting base in an embodiment of the present invention is shown;

[0027] Figure 8 A schematic diagram of the steering column mounting base in an embodiment of the present invention is shown;

[0028] Figure 9 A schematic diagram of a steering reference plate in an embodiment of the present invention is shown;

[0029] Figure 10 This diagram illustrates the positions of the chassis suspension assembly parts, tire parts, slide column parts, and steering column parts after installation in an embodiment of the present invention.

[0030] In the diagram, 1-base station, 11-ring frame base, 12-lifting platform, 13-first hydraulic mechanism, 14-slide rail mechanism, 15-chassis suspension assembly parts, 2-tire lifting device, 21-second hydraulic mechanism, 22-turntable, 23-brake assembly, 24-tire parts, 3-suspension auxiliary support seat, 4-suspension mounting seat, 5-sliding column mounting seat, 51-sliding column parts, 6-steering column mounting seat, 61-steering column parts, 7-steering reference plate, 71-flat plate, 72-measuring reference ball, 8-step. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figure 1-10 As shown, a vehicle chassis working state force simulation device is characterized by comprising a base station 1.

[0033] The base station 1 includes a ring frame base 11 and a middle lifting platform 12. The middle lifting platform 12 is slidably installed in the middle of the ring frame base 11. The base station 1 is placed horizontally, and the ring frame base 11 is fixed to a designated platform around its perimeter by screws.

[0034] The base station 1 is placed horizontally, and the annular frame base 11 is fixed to the ground by screws and / or welding or other means.

[0035] The tooling fixing point connection method between suspension assembly part 15 and suspension mounting bracket 4 is as follows:

[0036] Method 1: The middle lifting platform of the base station slowly rises, aligning the suspension assembly part 15 with the tooling fixing point of the suspension mounting seat 4. Then, the worker can fix the suspension assembly part 15 with the tooling fixing point of the suspension mounting seat 4 using screws.

[0037] Method 2: The intermediate lifting platform of the base station slowly rises to align the suspension assembly part 15 with the tooling fixing point of the suspension mounting seat 4. Then, the mechanical arm clamps screws or a welding gun to fix the suspension assembly part 15 with the tooling fixing point of the suspension mounting seat 4.

[0038] Similarly, the tooling fixing point connection method between the sliding column part 51 and the sliding column mounting base 5 is as follows:

[0039] Method 1: The middle lifting platform of the base station slowly rises, aligning the sliding column part 51 with the tooling fixing point of the sliding column mounting base 5. Then, the worker can fix the sliding column part 51 with the tooling fixing point of the sliding column mounting base 5 using screws.

[0040] Method 2: The middle lifting platform of the base station slowly rises, aligning the sliding column part 51 with the tooling fixing point of the sliding column mounting base 5. Then, the sliding column part 51 is fixed with the tooling fixing point of the sliding column mounting base 5 by a mechanical arm holding screws or a welding gun.

[0041] A suspension auxiliary support seat 3 is fixedly installed on the intermediate lifting platform 12. There is at least one suspension auxiliary support seat 3. In use, the suspension auxiliary support seat 3 is placed on one or more suspension auxiliary support seats manually or by a robotic arm, and then fixed (to prevent the suspension auxiliary support seat 3 from sliding sideways when the intermediate lifting platform 12 rises and falls, thereby injuring workers). Then, the intermediate lifting platform 12 drives the suspension assembly component 15 of the car chassis to rise, thereby aligning the suspension assembly component 15 with the tooling fixing point of the suspension mounting seat 4, and aligning the sliding column component 51 with the tooling fixing point of the sliding column mounting seat 5. Then, it is convenient for workers or robotic arms to fix the suspension assembly component 15 to the tooling fixing point of the suspension mounting seat 4 and fix the sliding column component 51 to the tooling fixing point of the sliding column mounting seat 5. The suspension assembly component 15 is transported by using the intermediate lifting platform 12 to push the suspension auxiliary support seat 3 to rise, which achieves relatively stable transportation. At the same time, since the suspension auxiliary support seat 3 is inside the suspension mounting seat 4, it is convenient for installation.

[0042] A tire lifting device 2 is slidably installed in the groove on the annular frame base 11; there is at least one tire lifting device 2; the tire lifting device 2 is used to place tire parts 24; the tire lifting device 2 is used to install and test tire parts 24, and the position of the tire lifting device 2 corresponds to the tire position of the test vehicle.

[0043] A suspension mounting seat 4 is fixedly installed on the annular frame base 11; the suspension mounting seat 4 is used to fix and connect the suspension assembly parts 15 of the chassis; the suspension mounting seat 4 is located above the intermediate lifting platform 12; the suspension mounting seat 4 is I-shaped, which facilitates the fixation and connection of the suspension assembly parts 15 of the chassis, and at the same time improves the stability of the installation.

[0044] A sliding column mounting seat 5 is fixedly installed on the annular frame base 11. There is at least one sliding column mounting seat 5, which is used to fix and connect the sliding column part 51. The sliding column mounting seat 5 is located on the outer side of the suspension mounting seat 4. There are two sliding column mounting seats 5, which are used to install the connecting sliding column part 51 of the car.

[0045] Both the tire lifting device 2 and the sliding column mounting seat 5 are located outside the suspension mounting seat 4, with the tire lifting device 2 located outside the sliding column mounting seat 5. Furthermore, the sliding column mounting seat 5 is higher than the tire lifting device 2.

[0046] In this embodiment, the steering column mounting base 6 is fixedly installed on the upper side of one of the sliding column mounting bases 5; the steering column mounting base 6 is used to fix the steering column component 61; a steering wheel is installed on the steering column component 61 to fix the position of the steering wheel. By manually or mechanically rotating the steering wheel, the steering wheel drives the steering column component 61 to drive the tire component 24 to turn, thereby simulating the steering of a car and obtaining experimental simulation data, which is convenient for the later design of the car.

[0047] like Figure 5 As shown, the tire lifting device 2 in this embodiment includes a second hydraulic mechanism 21. One end of the second hydraulic mechanism 21 is fixedly connected to the annular frame base 11, and the other end is fixedly mounted with a brake assembly 23. A turntable 22 is provided on the brake assembly 23. The brake assembly 23 is used to brake the tire component 24 by mounting the tire component 24 onto the turntable 22.

[0048] It also includes a steering reference plate 7, which is fixedly mounted on the mounting base of the brake assembly 23. The steering reference plate 7 is used to detect the force on the vehicle.

[0049] The steering reference plate 7 includes a flat plate 71, on which at least one measuring reference ball 72 is provided. The steering reference plate 7 is mounted on a physical tire. The principle is that three points determine a plane. There are five measuring reference balls on the steering reference plate. By selecting three reference balls that are not on a straight line, a plane can be constructed. By comparing the angle of the steering wheel rotation, the difference in angle between the plane constructed by the reference balls of the steering reference plate is analyzed.

[0050] In this embodiment, the base station 1 further includes a first hydraulic mechanism 13, which is installed on the intermediate lifting platform 12 and is used to drive the intermediate lifting platform 12 to move up and down.

[0051] When the first hydraulic mechanism 13 is a hydraulic cylinder, the end of the hydraulic cylinder piston rod is installed on the intermediate lifting platform 12, and the bottom end of the hydraulic cylinder body is fixedly installed on the platform or the annular frame base 11. The intermediate lifting platform 12 is driven to move up and down by the extension and retraction of the hydraulic cylinder, which facilitates the fixing and disassembly of the chassis suspension assembly parts 15.

[0052] When the first hydraulic mechanism 13 is an electric cylinder, the end of the electric cylinder piston rod is installed on the intermediate lifting platform 12, and the bottom end of the electric cylinder body is fixedly installed on the platform or the annular frame base 11. The electric cylinder extends and retracts, thereby driving the intermediate lifting platform 12 to move up and down, which facilitates the fixing and disassembly of the chassis suspension assembly parts 15.

[0053] like Figure 3As shown, the base station 1 also includes a slide rail mechanism 14, which is installed between the annular frame base 11 and the intermediate lifting platform 12. The slide rail mechanism 14 is divided into two parts: a slide rail and a slider. The slider is slidably installed in the slide rail. When the slide rail is fixedly connected to the annular frame base 11, the slider is fixedly connected to the intermediate lifting platform 12. When the slider is fixedly connected to the annular frame base 11, the slide rail is fixedly connected to the intermediate lifting platform 12. The slide rail and the slider cooperate to allow the intermediate lifting platform 12 to slide up and down along a fixed route in the annular frame base 11, thereby realizing the vertical directional movement between the intermediate lifting platform 12 and the annular frame base 11.

[0054] In this embodiment, the first hydraulic mechanism 13 and the second hydraulic mechanism 21 can be hydraulic cylinders or electric cylinders.

[0055] The embodiment also includes a step platform 8, which is fixedly installed on the outside of the annular frame base 11. The step platform 8 is placed horizontally, and by placing the step platform 8, workers can easily and conveniently go up and down the base station 1.

[0056] Working principle:

[0057] Base station 1 is placed on the platform. First, the chassis suspension assembly 15 is placed on the suspension auxiliary support seat 3. The intermediate lifting platform 12 of base station 1 slowly rises under the action of the first hydraulic mechanism 13, aligning the chassis suspension assembly 15 with the tooling fixing point of the suspension mounting seat 4. Then, the two are fixedly connected manually or by machine. The sliding column part 51 is aligned with the tooling fixing point of the sliding column mounting seat 5. Then, the two are fixedly connected manually or by machine. Then, the intermediate lifting platform 11 of base station 1 descends, so that the chassis suspension assembly 15 is in a free state. The tire part 24 is installed, the steering column part 61 is installed on the steering column mounting seat 6, and the steering wheel part is installed. The steering reference plate 7 is fixed on the mounting seat of the brake assembly 23. The steering wheel is leveled. The tire lifting device 2 moves from bottom to top, applying compression force to the tire when it is unloaded / half-loaded / fully loaded. The steering wheel is rotated, and the reference on the steering reference plate 7 is measured to obtain the relevant measurement data.

[0058] Specifically, when it is necessary to measure data under no-load conditions, the chassis suspension assembly 15, sliding column 51, tire 24, steering column 61, and steering wheel are installed through the above steps. The position of the tire lifting device 2 is lowered so that the compressive force generated by the brake assembly 23 and tire 24 on it is the compressive force when the vehicle is unloaded. Then, by rotating the steering wheel at different angles, the reference on the steering reference plate 7 changes successively. The data is obtained by measuring the reference on the steering reference plate 7 and comparing it with the angle of the rotating steering wheel. The above method is used to measure multiple times, and the average value is calculated to obtain accurate data.

[0059] Specifically, when it is necessary to measure data under half load, the chassis suspension assembly 15, sliding column 51, tire 24, steering column 61, and steering wheel are installed through the above steps. The position of the tire lifting device 2 is lowered so that the compressive force generated by the brake assembly 23 and tire 24 on it is the compressive force when the vehicle is under half load. Then, by rotating the steering wheel at different angles, the reference on the steering reference plate 7 changes successively. The data is obtained by measuring the reference on the steering reference plate 7 and comparing it with the angle of the rotating steering wheel. The above method is used to measure multiple times and the average value is calculated to obtain accurate data.

[0060] Specifically, when it is necessary to measure data under full load, the chassis suspension assembly 15, sliding column 51, tire 24, steering column 61, and steering wheel are installed through the above steps. The position of the tire lifting device 2 is lowered so that the compressive force generated by the brake assembly 23 and tire 24 on it is the compressive force when the vehicle is fully loaded. Then, by rotating the steering wheel at different angles, the reference on the steering reference plate 7 changes successively. The data is obtained by measuring the reference on the steering reference plate 7 and comparing it with the angle of the rotating steering wheel. The above method is used to measure multiple times, and the average value is calculated to obtain accurate data.

[0061] This structure enables the simulation of the stress on the car chassis, allowing for early measurement, analysis, and verification of chassis components, identification of component size issues, reduction of component scrap rate, and lower overall vehicle development costs.

[0062] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for simulating the working state of an automobile chassis, characterized in that, Including base station (1), The base station (1) includes a ring frame base (11) and a middle lifting platform (12), the middle lifting platform (12) being slidably installed in the middle of the ring frame base (11); A tire lifting device (2) is slidably installed in a groove on the annular frame base (11); there is at least one tire lifting device (2); A suspension mounting seat (4) is fixedly installed on the annular frame base (11); the suspension mounting seat (4) is used to fix and connect the suspension assembly parts (15) of the chassis; the suspension mounting seat (4) is located above the intermediate lifting platform (12); The tire lifting device (2) is located on the outside of the suspension mounting base (4); The tire lifting device (2) includes a second hydraulic mechanism (21), one end of which is fixedly connected to the annular frame base (11), and the other end is fixedly installed with a brake assembly (23) to realize the driving and braking of the simulated vehicle; It also includes a steering reference plate (7), which is fixedly mounted on the mounting base of the brake assembly (23) and the force on the vehicle is detected by the steering reference plate (7); A sliding column mounting seat (5) is fixedly installed on the annular frame base (11). There is at least one sliding column mounting seat (5), which is used to fix and connect the sliding column part (51). The sliding column mounting seat (5) is located on the outer side of the suspension mounting seat (4). It also includes a steering column mounting base (6), which is fixedly installed on the upper side of one of the sliding column mounting bases (5); the steering column mounting base (6) is used to fix and install the steering column parts (61). The base station (1) also includes a first hydraulic mechanism (13). The piston rod end of the hydraulic cylinder of the first hydraulic mechanism (13) is installed on the intermediate lifting platform (12). The bottom end of the cylinder of the first hydraulic mechanism (13) is fixedly installed on the platform or on the annular frame base (11).

2. The vehicle chassis working state force simulation device according to claim 1, characterized in that, The steering reference plate (7) includes a flat plate (71) on which at least three measuring reference balls (72) are provided.

3. The vehicle chassis working state force simulation device according to claim 1, characterized in that, The base station (1) also includes a slide rail mechanism (14), which is divided into two parts: a slide rail and a slider. The slide rail is fixedly connected to the inner side of the annular frame base (11) or the outer side of the intermediate lifting platform (12); the slider is fixedly connected to the outer side of the intermediate lifting platform (12) or the inner side of the annular frame base (11); and the slider is slidably installed in the slide rail.

4. The vehicle chassis working state force simulation device according to claim 1, characterized in that, A suspension auxiliary support seat (3) is fixedly installed on the intermediate lifting platform (12); there is at least one suspension auxiliary support seat (3) for placing the suspension assembly parts (15) of the automobile chassis.

5. The vehicle chassis working state force simulation device according to claim 1, characterized in that, The first hydraulic mechanism (13) is a hydraulic cylinder.

6. The vehicle chassis working state force simulation device according to claim 1, characterized in that, It also includes a step (8), which is fixedly installed on the outside of the annular frame base (11); by placing the step (8), workers can easily and conveniently go up and down the base station (1).

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