Gantry type vehicle air spring high and low temperature performance test equipment

Abstract

The utility model discloses gantry type vehicle air spring high and low temperature performance test equipment, which is characterized by comprising a gantry frame module, a servo electric cylinder module, a high and low temperature environment test cabinet and a chassis module, and is characterized in that the gantry frame module is erected on the chassis module; the high and low temperature environment test cabinet with holes in the top surface and the bottom surface is arranged between the portal frame module and the chassis module; the servo electric cylinder module is mounted on the portal frame module above the high and low temperature environment test cabinet; the portal frame module is used for moving the servo electric cylinder module to a designated position; a to-be-tested air spring for a vehicle is placed on the chassis module exposed in an opening in the bottom surface of the high and low temperature environment test cabinet 3. According to the utility model, dozens of tons of thrust generated by the servo electric cylinder can directly act on the portal frame module and the chassis module, and the frame structure of the high and low temperature environment test cabinet cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle air spring performance detection, in particular to a gantry type vehicle air spring high and low temperature performance test device. Background Art

[0002] Currently, most automotive air spring high- and low-temperature performance testing equipment utilizes a servo electric cylinder mounted directly on an environmental chamber, with the fixture holding the test piece placed entirely within the chamber. This direct mounting of the servo electric cylinder requires the entire chamber frame to withstand the thrust generated by the electric cylinder. Since this thrust often reaches tens of tons, the frame is often susceptible to deformation and even breakage. Furthermore, the placement of the fixture holding the test piece within the chamber significantly increases the chamber's load and consumes additional power. Furthermore, the fixed positions of the electric cylinder and fixture make it difficult to meet testing requirements for test pieces with unusual shapes. Utility Model Content

[0003] In order to solve the problems in the background technology, the utility model proposes a gantry-type vehicle air spring high and low temperature performance test equipment with energy saving and environmental protection, rich application scenarios, reasonable structure and durability.

[0004] To this end, the utility model adopts the following technical solutions:

[0005] A gantry-type vehicle air spring high and low temperature performance test equipment, including: a gantry module, a servo electric cylinder module, a high and low temperature environment test cabinet and a chassis module, wherein:

[0006] The gantry module is mounted on the chassis module;

[0007] The high and low temperature environment test cabinet with holes on the top and bottom is arranged between the gantry module and the chassis module;

[0008] The servo electric cylinder module is installed on the gantry module above the high and low temperature environment test cabinet;

[0009] The gantry module is used to move the servo electric cylinder module to a specified position; the vehicle air spring to be tested is placed on the chassis module exposed in the opening on the bottom surface of the high and low temperature environment test cabinet.

[0010] Preferably, the gantry module includes a frame, a transverse motor, a longitudinal motor, a transverse transmission structure and a longitudinal transmission structure, wherein: the transverse motor is used to push the servo electric cylinder module to move laterally along the top crossbeam of the frame through the transverse transmission structure, and the longitudinal motor is used to push the frame to move on the chassis module in a direction perpendicular to the top crossbeam of the frame through the longitudinal transmission structure.

[0011] Preferably, the servo electric cylinder module includes a servo electric cylinder and a cylinder rod, and the cylinder rod is connected to the output end of the servo electric cylinder; when in use, the servo electric cylinder pushes the cylinder rod through the opening on the top surface of the high and low temperature environment test cabinet and extends into the high and low temperature environment test cabinet to squeeze the vehicle air spring to be tested.

[0012] Preferably, a pressure sensor is installed at the end of the cylinder rod for measuring the pressure value applied by the servo electric cylinder in real time; and a grating ruler is installed in the cylinder body of the servo electric cylinder for monitoring the extension amount of the cylinder rod in real time.

[0013] Preferably, the chassis module includes a chassis and a fixed base supported thereon; the fixed base extends into the interior of the high and low temperature environment test cabinet to fix the vehicle air spring to be tested.

[0014] Preferably, the fixed base is provided with a T-shaped slot in both horizontal and vertical directions.

[0015] Preferably, a first silicone accordion cover is installed on the opening on the top surface of the high and low temperature environment test cabinet, and a second silicone accordion cover is installed between the hole wall of the bottom surface opening of the high and low temperature environment test cabinet and the chassis module; the first silicone accordion cover and the second silicone accordion cover are used to isolate the high and low temperature environment test cabinet from the influence of the external temperature.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The utility model can directly apply the tens of tons of thrust generated by the servo electric cylinder to the gantry module and the chassis module without causing damage to the frame structure of the high and low temperature environment test cabinet.

[0018] 2. The utility model can greatly reduce the temperature control load caused by the temperature outside the high and low temperature environment test cabinet, reduce the power loss of the equipment, and achieve the goal of energy saving and environmental protection.

[0019] 3. The utility model can adjust the spatial position of the servo electric cylinder and can test automotive springs of various shapes to be tested, thereby improving the applicability of the test equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the high and low temperature environment test cabinet of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention from another angle;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the servo electric cylinder module of the present utility model;

[0024] Figure 5 It is a schematic diagram of the internal structure of the utility model;

[0025] Figure 6 This is a structural diagram of the fixed base of the utility model;

[0026] In the figure: 1. Gantry module, 1-1. Frame, 1-2. Horizontal motor, 1-3. Longitudinal motor, 2. Servo electric cylinder module, 2-1. Servo electric cylinder, 2-2. Cylinder rod, 3. High and low temperature environment test cabinet, 4. Chassis module, 4-1. Chassis, 4-2. Fixed base. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0028] In order to clearly show the internal structure of the high and low temperature environment test cabinet, Figure 2 and Figure 5 The door of the high and low temperature environment test cabinet is hidden in it.

[0029] Example 1

[0030] The utility model is a gantry type vehicle air spring high and low temperature performance test equipment, such as Figure 1 and Figure 2 As shown, the system comprises a gantry module 1, a servo electric cylinder module 2, a high and low temperature environment test cabinet 3, and a chassis module 4. The gantry module 1 is mounted on the chassis module 4. The high and low temperature environment test cabinet 3, which has openings on both the top and bottom surfaces, is positioned between the top crossbeam of the gantry module 1 and the chassis module 4. The servo electric cylinder module 2 is mounted on the top crossbeam of the gantry module 1 above the high and low temperature environment test cabinet 3. The gantry module 1 is used to move the servo electric cylinder module 2. The chassis module 4 is exposed through the openings on the bottom surface of the high and low temperature environment test cabinet 3, and the automotive air spring to be tested is placed on it.

[0031] like Figure 3 The gantry module 1 shown includes a frame 1-1, a transverse motor 1-2, a longitudinal motor 1-3, a transverse transmission structure, and a longitudinal transmission structure. The transverse motor 1-2, via the transverse transmission structure, propels the servo electric cylinder module 2 laterally along the top crossbeam of the frame 1-1. The longitudinal motor 1-3, via the longitudinal transmission structure, propels the frame 1-1 on the chassis module 4 in a direction perpendicular to the top crossbeam. In actual use, the servo electric cylinder module 2 can be moved to a desired position by adjusting the transverse motor 1-2 and longitudinal motor 1-3, enabling testing of various automotive air spring types.

[0032] During use, the vehicle spring to be tested is fixed on the chassis module 4 exposed in the high and low temperature environment test cabinet 3. After the servo electric cylinder module 2 is moved to the top of the vehicle spring to be tested through the gantry module 1, the servo electric cylinder module 2 is used to output pressure to squeeze the vehicle spring to be tested, and then the temperature in the high and low temperature environment test cabinet 3 is changed to complete the vehicle spring performance test under various temperatures.

[0033] Example 2

[0034] On the basis of Example 1, Figure 4 As shown, the servo electric cylinder module 2 comprises a servo electric cylinder 2-1 and a cylinder rod 2-2. Cylinder rod 2-2 is connected to the output terminal of servo electric cylinder 2-1. During operation, servo electric cylinder 2-1 pushes cylinder rod 2-2 through an opening in the top surface of the high-low temperature environment test cabinet 3 and into the high-low temperature environment test cabinet 3, thereby compressing the automotive spring to be tested. A pressure sensor is mounted at the end of cylinder rod 2-2 for real-time measurement of downward force. A linear scale is installed within the cylinder body of servo electric cylinder 2-1 to monitor the extension of cylinder rod 2-2 in real time.

[0035] like Figure 5 As shown, the chassis module 4 includes a chassis 4-1 and a fixed base 4-2 supported on the base. The fixed base 4-2 extends into the high and low temperature environment test cabinet 3 and is used to fix the vehicle spring to be tested.

[0036] like Figure 6 As shown, the fixed base 4-2 is provided with a T-slot in both horizontal and vertical directions, which is used to fix the vehicle spring to be tested at any position on its top plane.

[0037] Example 3

[0038] Based on Example 2, the high and low temperature environment test cabinet can simulate ambient temperatures ranging from -60° to +100°. At the same time, since only the automotive spring to be tested, the cylinder rod 2-2, and the fixed base 4-2 are inside the test cabinet, the impact of temperature is minimal, and the power consumption of the utility model is also greatly reduced.

[0039] The top opening of the high and low temperature environment test cabinet 3 is installed with a silicone accordion cover that can pass through the cylinder rod 2-2, and a silicone accordion cover is also installed between the bottom opening of the high and low temperature environment test cabinet 3 and the fixed base 4-2; the silicone accordion cover is used to isolate the influence of the external temperature of the high and low temperature environment test cabinet 3 and will not hinder the movement of the servo electric cylinder module 2.

[0040] The following is a brief description of the steps in the operation of the present invention:

[0041] S1, use T-bolts and pressure plates to install the automotive spring to be tested on the fixed base 4-2 and make it meet the test standard requirements;

[0042] S2, using the transverse motor 1-2 and the longitudinal motor 1-3 to adjust the position of the servo electric cylinder module 2 so that the cylinder rod 2-2 on it is directly above the top of the vehicle spring to be tested; then, the cylinder rod 2-2 is extended to press the top of the vehicle spring to be tested, simulating the weight of the vehicle body;

[0043] S3, close and lock the door of the high and low temperature environment test cabinet 3, and start the temperature control system of the high and low temperature environment test cabinet 3 so that the internal temperature reaches the test standard requirement;

[0044] S4, by controlling the pressure released by the servo electric cylinder and the extension of the cylinder rod, the performance of the automotive spring to be tested in high or low temperature environments is tested. The performance test includes fatigue life test and performance test under different pressures.

Claims

1. A gantry-type vehicle air spring high and low temperature performance test equipment, characterized in that: include: Gantry module (1), servo electric cylinder module (2), high and low temperature environment test cabinet (3) and chassis module (4), wherein: The gantry module (1) is mounted on the chassis module (4); The high and low temperature environment test cabinet (3) with openings on both the top and bottom surfaces is arranged between the gantry module (1) and the chassis module (4); The servo electric cylinder module (2) is installed on a gantry module (1) above a high and low temperature environment test cabinet (3); The gantry module (1) is used to move the servo electric cylinder module (2) to a specified position; the vehicle air spring to be tested is placed on the chassis module (4) exposed in the opening on the bottom surface of the high and low temperature environment test cabinet (3).

2. The gantry-type vehicle air spring high and low temperature performance test equipment according to claim 1, characterized in that: The gantry module (1) comprises a frame (1-1), a transverse motor (1-2), a longitudinal motor (1-3), a transverse transmission structure and a longitudinal transmission structure, wherein: the transverse motor (1-2) is used to push the servo electric cylinder module (2) to move transversely along the top crossbeam of the frame (1-1) through the transverse transmission structure, and the longitudinal motor (1-3) is used to push the frame (1-1) to move on the chassis module (4) in a direction perpendicular to the top crossbeam of the frame (1-1) through the longitudinal transmission structure.

3. The gantry-type vehicle air spring high and low temperature performance test equipment according to claim 1, characterized in that: The servo electric cylinder module (2) comprises a servo electric cylinder (2-1) and a cylinder rod (2-2), wherein the cylinder rod (2-2) is connected to the output end of the servo electric cylinder (2-1); when in use, the servo electric cylinder (2-1) pushes the cylinder rod (2-2) through an opening on the top surface of the high and low temperature environment test cabinet (3) and extends into the high and low temperature environment test cabinet (3), thereby squeezing the vehicle air spring to be tested.

4. The gantry-type vehicle air spring high and low temperature performance test equipment according to claim 3, characterized in that: A pressure sensor is installed at the end of the cylinder rod (2-2) for measuring the pressure value applied by the servo electric cylinder (2-1) in real time; a grating ruler is installed in the cylinder body of the servo electric cylinder (2-1) for monitoring the extension amount of the cylinder rod (2-2) in real time.

5. The gantry-type vehicle air spring high and low temperature performance test equipment according to claim 1, characterized in that: The chassis module (4) comprises a chassis (4-1) and a fixed base (4-2) supported thereon; the fixed base (4-2) extends into the interior of a high and low temperature environment test cabinet (3) and is used to fix a vehicle air spring to be tested.

6. The gantry-type vehicle air spring high and low temperature performance test equipment according to claim 5, characterized in that: The fixed base (4-2) is provided with a T-shaped groove in both horizontal and vertical directions.

7. The gantry-type vehicle air spring high and low temperature performance test equipment according to claim 1, characterized in that: A first silicone accordion cover is installed on the opening on the top surface of the high and low temperature environment test cabinet (3), and a second silicone accordion cover is installed between the hole wall of the opening on the bottom surface of the high and low temperature environment test cabinet (3) and the chassis module (4); the first silicone accordion cover and the second silicone accordion cover are used to isolate the high and low temperature environment test cabinet (3) from the influence of the external temperature.

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