Complete vehicle dynamic fatigue test equipment

Abstract

The utility model discloses a whole vehicle dynamic fatigue test device, which belongs to the technical field of vehicle frame detection and comprises a base, a supporting frame is arranged on the upper end face of the base, a combined tool used for fixing a vehicle frame is arranged on the upper end face of the base in the supporting frame, and a movable frame is arranged in the supporting frame. A longitudinal adjusting mechanism for driving the moving frame to move in the vertical direction is arranged on the supporting frame, a transverse adjusting mechanism is arranged in the moving frame facing the frame side, an electric cylinder is arranged on the transverse adjusting mechanism through a mounting plate, and the electric cylinder can move in the horizontal direction under driving of the transverse adjusting mechanism. And a piston rod of the electric cylinder is connected with a to-be-detected position of the frame. According to the utility model, frequent switching among different devices is not needed, so that the operation difficulty and complexity are reduced, and the test efficiency and the space utilization rate of a production workshop are improved. The position of the electric cylinder is controlled through the longitudinal adjusting mechanism and the transverse adjusting mechanism, so that accurate testing of different height positions of the frame is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle frame detection, in particular to a whole vehicle dynamic fatigue test device. Background Art

[0002] Currently, fatigue testing for electric vehicles primarily involves testing the frame, handlebars, saddle, and front fork. These tests simulate the dynamic loads, stresses, vibrations, and impacts experienced by riders during riding, achieving dynamic fatigue testing of the vehicle body. However, existing fatigue testing for electric vehicle frames, handlebars, saddles, and front forks typically requires separate testing using multiple different types of testing equipment. This decentralized testing approach not only results in a wide variety of equipment types but also significantly occupies space resources within laboratories or production workshops. Each piece of testing equipment requires independent installation, commissioning, and maintenance, which undoubtedly increases operational complexity and time costs. Summary of the Invention

[0003] To address the challenges of existing technologies, this utility model provides a complete vehicle dynamic fatigue test device that eliminates the need for frequent switching between different devices, thereby reducing operational difficulty and complexity, improving testing efficiency, and improving space utilization in the production workshop. By controlling the position of the electric cylinder through longitudinal and lateral adjustment mechanisms, precise testing can be achieved at different vehicle frame heights.

[0004] The present utility model is implemented as follows: a whole vehicle dynamic fatigue test equipment comprises a base, the upper end surface of the base is provided with a support frame, the upper end surface of the base located in the support frame is provided with a combination tooling for fixing the frame, a movable frame is provided in the support frame, a longitudinal adjustment mechanism for driving the movable frame to move in the vertical direction is provided on the support frame, a transverse adjustment mechanism is provided in the movable frame facing the frame side, an electric cylinder is provided on the transverse adjustment mechanism through a mounting plate, the electric cylinder can move in the horizontal direction under the drive of the transverse adjustment mechanism, and the piston rod of the electric cylinder is connected to the position of the frame to be detected.

[0005] Furthermore, a linear guide assembly is provided on the upper end surface of the mobile frame. The guide rails of the linear guide assembly are horizontally arranged along the length of the mobile frame. A connecting plate is provided on the slider of the linear guide assembly, and the connecting plate is connected to the mounting plate via a connecting rod. The linear guide assembly enables the mounting plate and the electric cylinder thereon to maintain a stable horizontal motion, thereby ensuring precise positioning of the frame at the position to be inspected.

[0006] Furthermore, the longitudinal adjustment mechanism includes a first lead screw, the screw in the first lead screw is vertically arranged in the support frame, the side plate of the mobile frame is connected to the nut in the first lead screw, and the end of the screw in the first lead screw is provided with a longitudinal adjustment handwheel. Due to the high-precision characteristics of the lead screw, the longitudinal adjustment mechanism can achieve precise positioning of the mobile frame. This helps to ensure that the position of the frame to be tested is accurately loaded during the test process, thereby improving the accuracy and reliability of the test. By rotating the longitudinal adjustment handwheel, fine-tuning of the mobile frame in the vertical direction can be achieved. This adjustment flexibility enables the equipment to adapt to the testing requirements of different heights and positions, improving the applicability and flexibility of the equipment.

[0007] Furthermore, the lateral adjustment mechanism includes a second lead screw, the screw in the second lead screw is horizontally arranged in the mobile frame along the length direction of the mobile frame, the mounting plate is connected to the nut in the second lead screw, and one end of the screw in the second lead screw extends outward through the side plate of the mobile frame and is provided with a lateral adjustment handwheel. The lateral adjustment mechanism can achieve precise positioning of the mounting plate and the electric cylinder, which helps to ensure accurate alignment between components during assembly or testing, thereby improving the performance and reliability of the overall equipment. By rotating the lateral adjustment handwheel, the mounting plate can be fine-tuned in the horizontal direction. This adjustment flexibility enables the equipment to adapt to testing at different positions on the frame, improving the applicability and flexibility of the equipment.

[0008] Furthermore, tension and compression sensors are installed at the connecting end of the electric cylinder's piston rod. Combined with the lateral and longitudinal adjustment mechanisms, these sensors enable precise positioning of the cylinder's piston rod. By monitoring and providing feedback on tension or pressure data in real time, the system can more accurately adjust the cylinder's trajectory and position, thereby improving positioning accuracy.

[0009] Furthermore, the electric cylinder's mounting base is hinged to a mounting plate. A stopper is provided on the mounting plate on the side facing away from the frame. The stopper abuts the electric cylinder's mounting base. The end face of the stopper abutting the electric cylinder's mounting base is inclined at an angle of 5 to 10 degrees. When performing frame fatigue testing, the electric cylinder needs to be tilted, and the stopper can limit the tilt angle of the electric cylinder, facilitating testing.

[0010] Furthermore, the electric cylinder and the lateral adjustment mechanism are each provided with two groups, and the two groups of electric cylinders are respectively installed on the corresponding lateral adjustment mechanism.

[0011] Furthermore, the combined tooling includes a front fork tooling, a saddle tooling, a frame tooling and a handlebar tooling.

[0012] Furthermore, a tool base is provided on the upper end surface of the base, and a mounting groove is provided on the tool base, and the combined tool is arranged on the tool base through the mounting groove. The design of the mounting groove makes the installation and removal of the combined tool more convenient.

[0013] Furthermore, the length direction of the movable frame is perpendicular to the placement direction of the vehicle frame.

[0014] The advantages and technical effects of this utility model include: By adopting the above-mentioned technical solution, the test equipment is integrated, integrating fatigue testing of the frame, handlebars, saddle, and front fork into one unit, eliminating the need for frequent switching between different devices. This reduces operational difficulty and complexity, improves testing efficiency, and improves space utilization in the production workshop. The longitudinal and lateral adjustment mechanisms control the position of the electric cylinder, enabling precise testing at different frame heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure provided by an embodiment of the present utility model;

[0016] Figure 2 This is a schematic structural diagram of the transverse adjustment mechanism and the longitudinal adjustment mechanism provided by an embodiment of the utility model;

[0017] Figure 3 This is a three-dimensional diagram of the overall structure provided by an embodiment of the utility model;

[0018] Figure 4 It is a side view provided by an embodiment of the present utility model.

[0019] In the figure: 1. Base; 2. Support frame; 3. Assembly tooling; 3-1. Front fork tooling; 3-2. Saddle tooling; 3-3. Frame tooling; 3-4. Handlebar tooling; 4. Moving frame; 5. Longitudinal adjustment mechanism; 5-1. First lead screw; 5-2. Longitudinal adjustment handwheel; 6. Transverse adjustment mechanism; 6-1. Second lead screw; 6-2. Transverse adjustment handwheel; 7. Electric cylinder; 8. Mounting plate; 9. Linear guide rail assembly; 10. Connecting plate; 11. Connecting rod; 12. Tension and compression sensor; 13. Stop block; 14. Tooling base; 14-1. Mounting slot. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0022] like Figures 1 to 4 As shown, the present application provides a whole vehicle dynamic fatigue test equipment, including a base 1, the upper end surface of the base 1 is provided with a support frame 2, and the upper end surface of the base 1 located in the support frame 2 is provided with a combination tooling 3 for fixing the frame, specifically, the combination tooling 3 includes a front fork tooling 3-1, a saddle tooling 3-2, a frame tooling 3-3 and a handlebar tooling 3-4. A movable frame 4 is provided in the support frame 2, specifically, the length direction of the movable frame 4 is perpendicular to the placement direction of the frame. A longitudinal adjustment mechanism 5 is provided on the support frame 2 to drive the movable frame 4 to move in the vertical direction, and a transverse adjustment mechanism 6 is provided in the movable frame 4 facing the frame side, and an electric cylinder 7 is provided on the transverse adjustment mechanism 6 through a mounting plate 8. The electric cylinder 7 can move in the horizontal direction under the drive of the transverse adjustment mechanism 6, and the piston rod of the electric cylinder 7 is connected to the position of the frame to be tested.

[0023] Furthermore, a linear guide assembly 9 is provided on the upper end surface of the mobile frame 4. The guide rails of the linear guide assembly 9 are horizontally arranged on the upper end surface of the mobile frame 4 along the length direction of the mobile frame 4. A connecting plate 10 is provided on the slider of the linear guide assembly 9. The connecting plate 10 is connected to the mounting plate 8 via a connecting rod 11. The linear guide assembly 9 enables the mounting plate 8 and the electric cylinder 7 thereon to maintain a stable horizontal motion state, thereby ensuring the precise positioning of the frame to be tested.

[0024] Furthermore, the longitudinal adjustment mechanism 5 includes a first lead screw 5-1, the screw in the first lead screw 5-1 is vertically arranged in the support frame 2, the side plate of the mobile frame 4 is connected to the nut in the first lead screw 5-1, and the end of the screw in the first lead screw 5-1 is provided with a longitudinal adjustment handwheel 5-2. Due to the high-precision characteristics of the lead screw, the longitudinal adjustment mechanism 5 can achieve precise positioning of the mobile frame 4. This helps to ensure that the position to be tested on the frame is accurately loaded during the test, thereby improving the accuracy and reliability of the test. By rotating the longitudinal adjustment handwheel 5-2, fine-tuning of the mobile frame 4 in the vertical direction can be achieved. This adjustment flexibility enables the equipment to adapt to the testing requirements of different heights and positions, thereby improving the applicability and flexibility of the equipment.

[0025] Furthermore, the lateral adjustment mechanism 6 includes a second screw 6-1, the screw in the second screw 6-1 is horizontally arranged in the mobile frame 4 along the length direction of the mobile frame 4, the mounting plate 8 is connected to the nut in the second screw 6-1, and one end of the screw in the second screw 6-1 extends outward through the side plate of the mobile frame 4 and is provided with a lateral adjustment handwheel 6-2. The lateral adjustment mechanism 6 can achieve precise positioning of the mounting plate 8 and the electric cylinder 7, which helps to ensure accurate alignment between components during assembly or testing, thereby improving the performance and reliability of the overall equipment. By rotating the lateral adjustment handwheel 6-2, fine-tuning of the mounting plate 8 in the horizontal direction can be achieved. This adjustment flexibility enables the equipment to adapt to testing at different positions of the frame, improving the applicability and flexibility of the equipment.

[0026] Furthermore, a tension and compression sensor 12 is installed at the connecting end of the piston rod of the electric cylinder 7. Combined with the lateral and longitudinal adjustment mechanisms 5, this sensor 12 enables precise positioning of the piston rod of the electric cylinder 7. By monitoring and providing feedback on tension or pressure data in real time, the system can more accurately adjust the motion trajectory and position of the electric cylinder 7, thereby improving positioning accuracy.

[0027] Furthermore, the mounting base of the electric cylinder 7 is hinged to the mounting plate 8. A stopper 13 is provided on the mounting plate 8 on the side facing away from the frame. This stopper 13 abuts the mounting base of the electric cylinder 7. The end face of the stopper 13 abutting the mounting base of the electric cylinder 7 is inclined at an angle of 5 to 10 degrees. When performing frame fatigue testing, the electric cylinder 7 needs to be tilted. The stopper 13 can limit the tilt angle of the electric cylinder 7, facilitating the test.

[0028] Furthermore, the electric cylinder 7 and the lateral adjustment mechanism 6 are each provided with two groups, and the two groups of electric cylinders 7 are respectively mounted on the corresponding lateral adjustment mechanism 6. According to different test positions, the horizontal positions of the corresponding electric cylinders 7 are respectively adjusted by the two groups of lateral adjustment mechanisms 6 to test the frame.

[0029] Furthermore, a tool base 14 is provided on the upper end surface of the base 1, and a mounting groove 14 is provided on the tool base 14. The combined tool 3 is mounted on the tool base 14 through the mounting groove 14. Preferably, the mounting groove 14 is a T-shaped groove. The design of the mounting groove 14 makes the installation and removal of the combined tool 3 more convenient.

[0030] By adopting this technical solution, the test equipment is integrated, integrating fatigue testing for the frame, handlebars, saddle, and front fork. This eliminates the need for frequent switching between different devices, reducing operational difficulty and complexity, improving testing efficiency, and increasing space utilization in the production workshop. The position of the electric cylinder 7 is controlled by the longitudinal adjustment mechanism 5 and the lateral adjustment mechanism 6, enabling precise testing at different frame heights.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A vehicle dynamic fatigue test equipment, characterized in that: It includes a base, the upper end surface of the base is provided with a supporting frame, the upper end surface of the base located in the supporting frame is provided with a combined tooling for fixing the frame, a mobile frame is provided in the supporting frame, a longitudinal adjustment mechanism for driving the mobile frame to move in the vertical direction is provided on the supporting frame, a transverse adjustment mechanism is provided in the mobile frame facing the frame side, an electric cylinder is provided on the transverse adjustment mechanism through a mounting plate, the electric cylinder can move in the horizontal direction under the drive of the transverse adjustment mechanism, and the piston rod of the electric cylinder is connected to the position of the frame to be detected.

2. The vehicle dynamic fatigue test equipment according to claim 1, characterized in that: The upper end surface of the movable frame is provided with a linear guide rail assembly, the guide rails in the linear guide rail assembly are horizontally arranged on the upper end surface of the movable frame along the length direction of the movable frame, and a connecting plate is provided on the slider in the linear guide rail assembly, and the connecting plate is connected to the mounting plate through a connecting rod.

3. The vehicle dynamic fatigue test equipment according to claim 1, characterized in that: The longitudinal adjustment mechanism includes a first screw, the screw in the first screw is vertically arranged in the support frame, the side plate of the movable frame is connected to the nut in the first screw, and the end of the screw in the first screw is provided with a longitudinal adjustment handwheel.

4. The vehicle dynamic fatigue test equipment according to claim 1, characterized in that: The lateral adjustment mechanism includes a second screw, the screw in the second screw is horizontally arranged in the moving frame along the length direction of the moving frame, the mounting plate is connected to the nut in the second screw, one end of the screw in the second screw passes through the side plate of the moving frame and extends outward and is provided with a lateral adjustment handwheel.

5. The vehicle dynamic fatigue test equipment according to claim 1, characterized in that: The connecting end of the electric cylinder piston rod is provided with a tension and compression sensor.

6. The vehicle dynamic fatigue test equipment according to claim 1, characterized in that: The mounting seat of the electric cylinder is hinged on the mounting plate, and a stopper is provided on the mounting plate away from the frame side. The stopper abuts against the mounting seat of the electric cylinder. The end face of the stopper abutting against the mounting seat of the electric cylinder is an inclined end face with an inclination angle of 5 to 10 degrees.

7. The vehicle dynamic fatigue test equipment according to claim 1, characterized in that: The electric cylinder and the lateral adjustment mechanism are both provided in two groups, and the two groups of electric cylinders are respectively installed on the corresponding lateral adjustment mechanism.

8. The vehicle dynamic fatigue test equipment according to claim 1, characterized in that: The combined tooling includes a front fork tooling, a saddle tooling, a frame tooling and a handlebar tooling.

9. The vehicle dynamic fatigue test equipment according to claim 1, characterized in that: A tool base is provided on the upper end surface of the base, a mounting groove is provided on the tool base, and the combined tool is arranged on the tool base through the mounting groove.

10. The vehicle dynamic fatigue test equipment according to claim 1, characterized in that: The length direction of the movable frame is perpendicular to the placement direction of the vehicle frame.

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