Passenger car stabilizer bar durability testing method, device, experimental system and terminal

Abstract

The invention discloses a durability testing method, device, experimental system and terminal for a passenger car stabilizer bar, and relates to the technical field of strength durability testing of chassis components of a passenger car. A high-strength square steel transmission rod is used as a medium for mechanical force transmission, and a high-strength rotating mechanism is installed at the middle position of the bottom to make the Y-axis adjustable by 360 degrees; different slide rails on both sides of the high-strength square steel transmission rod are used to connect the stabilizer bars on both sides of the passenger car and the experimental equipment; the X-axis force of the high-strength square steel transmission rod is transmitted to the stabilizer bars on both sides of the passenger car through the experimental equipment to perform the durability test of the stabilizer bar. The base at the bottom of the rotating mechanism of the invention is fixed on a fixed plate to ensure that the fixture does not move during the experiment. The invention conducts a large number of durability tests on the high-strength square steel transmission rod. After that, valid data is obtained. The operation is simple and easy to use, and the cost of making raw materials is low. It also saves a lot of man-hours, saving time and effort.

Description

Technical Field

[0001] The present invention belongs to the technical field of strength and durability testing of chassis components of passenger vehicles, and in particular relates to a durability testing method, device, testing system and terminal for a passenger vehicle stabilizer bar. Background Art

[0002] Currently, 2T vibration durability testing machines are unable to simultaneously perform durability tests on both sides of a passenger car's stabilizer bars. Furthermore, 2T vibration durability testing machines are not practical for durability testing stabilizer bar components on both load-bearing and non-load-bearing vehicles. Furthermore, existing technology is time-consuming and labor-intensive to operate.

[0003] Through the above analysis, the problems and defects of the existing technology are as follows:

[0004] (1) The existing technology cannot perform durability test actuation on both sides of the stabilizer bars at the same time.

[0005] (2) The test data of the stabilizer bars on both sides in the existing technology is inaccurate. The operation is cumbersome and the efficiency is low.

[0006] The difficulty in solving the above problems and defects lies in: how to evenly distribute the force of the experimental equipment to the bilateral stabilizer bars of the passenger car, so as to realize the actuation of the bilateral stabilizer bars.

[0007] The significance of solving the above problems and defects is: realizing the simultaneous actuation of the stabilizer bars on both sides of the passenger car can improve work efficiency. Summary of the Invention

[0008] To overcome the problems existing in the related art, the embodiments disclosed in the present invention provide a method, device, experimental system and terminal for testing the durability of a passenger car stabilizer bar. The technical solution is as follows:

[0009] According to a first aspect of the disclosed embodiments of the present invention, a method for testing the durability of a stabilizer bar of a passenger vehicle is provided, comprising:

[0010] A high-strength square steel transmission rod is used as the medium for mechanical force transmission, and a high-strength rotating mechanism is installed at the middle position of the bottom of the high-strength square steel transmission rod to achieve 360-degree horizontal adjustment;

[0011] The high-strength square steel transmission rod is connected to the stabilizer bars on both sides of the passenger car and the experimental equipment through different sliding rails on both sides; the X-axis force of the high-strength square steel transmission rod is transmitted to the stabilizer bars on both sides of the passenger car through the experimental equipment to perform the durability test of the stabilizer bar.

[0012] In one embodiment of the present invention, the rotating mechanism prevents the high-strength square steel transmission rod from being displaced during the durability test of the stabilizer bar by means of a transversely adjustable base mounted on a fixed plate or a cast iron fixture.

[0013] In one embodiment of the present invention, the conditions for performing the stabilizer bar durability test are:

[0014] Load: Steering wheel axial force ±2.2KN;

[0015] Load direction: up and down direction of vehicle;

[0016] Load location: center of hub axle.

[0017] Number of experiments: 47,500; frequency: 0.5HZ.

[0018] In one embodiment of the present invention, the experimental equipment includes a vibration machine to simulate the vibration external conditions in the actual environment during the durability test of the stabilizer bar.

[0019] According to a second aspect of the disclosed embodiments of the present invention, a passenger vehicle stabilizer bar durability detection device is provided, comprising:

[0020] High-strength square steel transmission rods, used as a medium for mechanical force transmission, transmitting X-axis forces to passenger vehicle components; such components include stabilizer bars on both sides and experimental equipment;

[0021] A high-strength rotating mechanism is installed at the bottom middle position of the high-strength square steel transmission rod and is used for 360-degree adjustment of the Y axis;

[0022] A laterally adjustable base is connected to the lower end of the high-strength rotating mechanism and is used to adjust the X-axis position of the high-strength rotating mechanism;

[0023] Component connection end slide rails are installed on different ends of the same side of the high-strength square steel transmission rod and are used to connect with passenger car components;

[0024] The equipment connection end slide rail is installed on the side of the high-strength square steel transmission rod that is different from the component connection end slide rail and is used to connect to the experimental equipment.

[0025] According to a third aspect of the disclosed embodiment of the present invention, a durability testing system for stabilizer bar components of load-bearing vehicles and non-load-bearing vehicles is provided, wherein the durability testing system for stabilizer bar components of load-bearing vehicles and non-load-bearing vehicles is equipped with the passenger car stabilizer bar durability testing device.

[0026] According to a fourth aspect of the disclosed embodiment of the present invention, a data processing terminal is provided, which includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the control instructions in the passenger car stabilizer bar durability detection method.

[0027] The technical solutions provided by the embodiments disclosed in the present invention may have the following beneficial effects:

[0028] This device utilizes a high-strength steel structure, transmitting the exciter's force to the passenger vehicle stabilizer bar via a square steel transmission rod to achieve durability testing. (Data not available) This ensures accurate and valid test results. It is suitable for durability testing of stabilizer bar components on both load-bearing and non-load-bearing vehicles.

[0029] Compared to existing technologies, the present invention offers further advantages: the base of the rotating mechanism is fixed to a fixed plate, ensuring that the fixture does not move during testing. Different slide rails on either side of a high-strength square steel transmission rod connect the stabilizer bars on both sides of the passenger vehicle to the test equipment. The present invention has been extensively tested for the durability of the high-strength square steel transmission rod. It is simple and easy to operate, manufactured with low-cost raw materials, and saves significant labor and time.

[0030] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0032] Figure 1 It is a top view of a passenger vehicle stabilizer bar durability testing device provided by an embodiment of the present invention.

[0033] Figure 2 It is a bottom view of a passenger vehicle stabilizer bar durability testing device provided by an embodiment of the present invention.

[0034] Figure 3 It is a right side view of a passenger vehicle stabilizer bar durability testing device provided by an embodiment of the present invention.

[0035] Figure 4 It is an axonometric view of a passenger vehicle stabilizer bar durability testing device provided by an embodiment of the present invention.

[0036] Figure 5 It is a front view of a passenger vehicle stabilizer bar durability testing device provided by an embodiment of the present invention.

[0037] Figure 6 It is a left view of a passenger vehicle stabilizer bar durability testing device provided by an embodiment of the present invention.

[0038] In the figure: 1. High-strength square steel transmission rod; 2. High-strength rotating mechanism; 3. Laterally adjustable base; 4. Component connection end slide rail; 5. Equipment connection end slide rail. DETAILED DESCRIPTION

[0039] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0040] This invention uses a high-strength square steel transmission rod as the medium for mechanical force transmission. A high-strength rotating mechanism is installed in the middle of the bottom of the square steel transmission rod, enabling 360-degree adjustment of the Y-axis. Different slide rails on either side of the transmission rod are used to connect the stabilizer bars on both sides of the passenger car to the experimental equipment. The rotating mechanism is equipped with a laterally adjustable base that can be fixed to a fixed plate or cast iron fixture. During the experiment, the equipment transmits the X-axis force to the stabilizer bars on both sides of the passenger car through the square steel transmission rod to achieve the purpose of durability testing, thus ensuring experimental accuracy and data that is closer to the actual vehicle usage experience.

[0041] Specifically, the present invention provides a method for testing the durability of a passenger vehicle stabilizer bar, comprising:

[0042] A high-strength square steel transmission rod is used as the medium for mechanical force transmission, and a high-strength rotating mechanism is installed at the middle position of the bottom of the high-strength square steel transmission rod to achieve 360-degree adjustment of the Y axis;

[0043] Connecting to the stabilizer bars and test equipment on both sides of the passenger car through different slide rails on both sides of the high-strength square steel transmission rod;

[0044] The X-axis force of the high-strength square steel transmission rod is transmitted to the stabilizer bars on both sides of the passenger car through the experimental equipment to perform the durability test of the stabilizer bars.

[0045] In a preferred embodiment of the present invention, the rotating mechanism is mounted on a fixed plate (such as Figure 4 ), or a laterally adjustable base on a cast iron fixture to prevent displacement of the high-strength square steel drive rod during stabilizer bar durability testing.

[0046] In a preferred embodiment of the present invention, the experimental equipment includes a vibration machine to simulate the vibration external conditions in the actual environment during the durability test of the stabilizer bar.

[0047] like Figures 1-6 As shown, the present invention provides a passenger vehicle stabilizer bar durability detection device, comprising:

[0048] High-strength square steel transmission rod 1, used as a medium for mechanical force transmission, transmitting X-axis force to passenger car components; the components include two side stabilizer bars and experimental equipment;

[0049] High-strength rotating mechanism 2, installed at the bottom middle position of the high-strength square steel transmission rod, used for 360-degree adjustment of the Y axis;

[0050] A laterally adjustable base 3 is connected to the lower end of the high-strength rotating mechanism 2 and is used to adjust the position of the high-strength rotating mechanism in the X-axis direction;

[0051] The component connection end slide rails 4 are installed on different ends of the same side of the high-strength square steel transmission rod 1 and are used to connect with passenger car components;

[0052] The equipment connection end slide rail 5 is installed on the side of the high-strength square steel transmission rod 1 that is different from the component connection end slide rail 4 and is used to connect with the experimental equipment.

[0053] The positive effects of the present invention will be further described below in conjunction with experimental data.

[0054] In the prior art, a 2T vibration durability testing machine cannot simultaneously perform durability testing on the stabilizer bars on both sides of a passenger car. To solve the above problem, the present invention provides a fixture (a durability testing device for stabilizer bars of passenger cars).

[0055] The fixture meets the durability test conditions:

[0056] Load: Steering wheel axial force ±2.2KN;

[0057] Load direction: up and down direction of vehicle;

[0058] Load location: center of hub axle.

[0059] Number of experiments: 47,500; frequency: 0.5HZ.

[0060] In the experiment, the passenger car stabilizer bar durability testing device provided by the present invention was connected to the vehicle body, the experimental equipment, and the stabilizer bar, and the experimental results were good.

[0061] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

[0062] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure should be limited by the appended claims.

Claims

1. A method for testing the durability of a passenger car stabilizer bar, characterized in that: The passenger car stabilizer bar durability testing method comprises: A high-strength square steel transmission rod is used as the medium for mechanical force transmission, and a high-strength rotating mechanism is installed at the middle position of the bottom of the high-strength square steel transmission rod to achieve 360-degree adjustment of the Y axis; Connect the high-strength square steel transmission rod with the stabilizer bars on both sides of the passenger car and the test equipment through different slide rails on both sides; transmit the X-axis force of the high-strength square steel transmission rod to the stabilizer bars on both sides of the passenger car through the test equipment to perform the durability test of the stabilizer bars; The rotating mechanism prevents the high-strength square steel transmission rod from being displaced during the durability test of the stabilizer rod by means of a transversely adjustable base mounted on a fixed plate or a cast iron fixture; The stabilizer bar durability test conditions are: Load: Steering wheel axial force ±2.2KN; Load direction: up and down direction of the vehicle; Load location: hub axle disc center; Number of experiments: 47,500; Frequency: 0.5HZ; The experimental equipment includes a vibration machine, which simulates the vibration external conditions in the actual environment during the durability test of the stabilizer bar.

2. A passenger car stabilizer bar durability testing device for implementing the passenger car stabilizer bar durability testing method of claim 1, characterized in that: The passenger vehicle stabilizer bar durability detection device comprises: High-strength square steel transmission rod, used as a medium for mechanical force transmission, transmitting X-axis force to passenger car parts; the parts include two side stabilizer bars and experimental equipment; A high-strength rotating mechanism is installed at the bottom middle position of the high-strength square steel transmission rod and is used for 360-degree adjustment of the Y axis; Component connection end slide rail, used to connect with passenger car components; Equipment connection end slide rail, used to connect with experimental equipment.

3. The passenger vehicle stabilizer bar durability testing device according to claim 2, characterized in that: The passenger vehicle stabilizer bar durability detection device further comprises: The laterally adjustable base is connected to the lower end of the high-strength rotating mechanism and is used to adjust the position of the high-strength rotating mechanism in the X-axis direction.

4. The passenger vehicle stabilizer bar durability testing device according to claim 2, characterized in that: The component connection end slide rails are installed at different ends of the same side of the high-strength square steel transmission rod.

5. The passenger vehicle stabilizer bar durability testing device according to claim 2, characterized in that: The equipment connection end slide rail is installed on a side of the high-strength square steel transmission rod that is different from the component connection end slide rail.

6. A durability test system for stabilizer bar components of load-bearing vehicles and non-load-bearing vehicles, characterized in that: The durability test system for stabilizer bar components of load-bearing vehicles and non-load-bearing vehicles is equipped with the passenger vehicle stabilizer bar durability detection device according to any one of claims 2 to 5.

Images