Testing device and fuel tank noise testing system

Abstract

The utility model discloses a testing device and a fuel tank noise testing system. The testing device comprises a walking assembly, a first adjusting assembly and a second adjusting assembly. The walking assembly is movable. The first adjusting assembly is connected between the walking assembly and the second adjusting assembly, the second adjusting assembly is provided with a mounting part, and the mounting part is used for being connected with a to-be-tested piece; one of the first adjusting assembly and the second adjusting assembly is an inclined posture adjusting assembly, the other one is a rotating posture adjusting assembly, the inclined posture adjusting assembly is used for adjusting the to-be-tested piece to obliquely swing relative to the walking assembly, and the rotating posture adjusting assembly is used for adjusting the to-be-tested piece to rotate relative to the walking assembly. The testing device of the utility model can simulate different postures of the fuel tank under the real vehicle operation condition, and is helpful for improving the testing effect of the shaking noise of the fuel tank.

Description

Technical Field

[0001] The utility model belongs to the technical field of performance testing, and particularly relates to a testing device and a fuel tank noise testing system. Background Art

[0002] The oil sloshing noise of the automotive fuel tank is one of the noise sources during vehicle driving. In ordinary fuel vehicles, due to the masking of engine noise, the oil sloshing noise of the fuel tank is not easily perceived. However, when a hybrid vehicle is driving in pure electric mode, the overall vehicle background noise is relatively low. When the vehicle accelerates, brakes or steers, the oil in the fuel tank moves relative to the fuel tank due to inertia, impacts the inner wall of the fuel tank to generate vibration, and forms noise transmitted into the vehicle, which is easily perceived by the occupants. Therefore, the fuel tank sloshing noise of hybrid vehicles has attracted widespread attention.

[0003] In the related art, after the fuel tank is connected to the testing equipment for sloshing noise, the fuel tank and the testing equipment are connected as a whole, and decoupling cannot be achieved during the movement process, and the sloshing condition of the fuel tank cannot be simulated and tested in combination with the actual vehicle operating conditions. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems in the related art to some extent.

[0005] To this end, an embodiment of the utility model provides a testing device, which can simulate different postures of the fuel tank under actual vehicle operating conditions, and helps to improve the testing effect of fuel tank sloshing noise.

[0006] An embodiment of the utility model further provides a fuel tank noise testing system.

[0007] According to the testing device of the embodiment of the utility model, it includes:

[0008] A walking component, which is movable;

[0009] A first adjusting component and a second adjusting component, the first adjusting component is connected between the walking component and the second adjusting component, and the second adjusting component has a mounting part for connecting with a test piece;

[0010] One of the first adjusting component and the second adjusting component is an inclined posture adjusting component, and the other is a rotating posture adjusting component. The inclined posture adjusting component is used to adjust the test piece to swing obliquely relative to the walking component, and the rotating posture adjusting component is used to adjust the test piece to rotate relative to the walking component.

[0011] In the test device according to the embodiments of the present utility model, the tilt attitude adjustment assembly can simulate working conditions such as forward tilt, rear tilt, and side tilt during actual vehicle operation by adjusting the tilt and swing attitude of the component under test relative to the traveling assembly. The rotation attitude adjustment assembly can simulate the working conditions during turning and direction change during actual vehicle operation by adjusting the rotation angle of the component under test relative to the traveling assembly. Furthermore, it can realize the simulation test of different attitudes of the fuel tank under actual vehicle operating conditions, improve the coincidence degree between the simulation test environment and the actual vehicle conditions, fully verify the fuel tank sloshing noise solution, greatly reduce the risks of insufficient design and verification, and contribute to improving the test effect of fuel tank sloshing noise.

[0012] In some embodiments, the tilt attitude adjustment assembly includes:

[0013] A plurality of telescopic components, which are connected between the traveling assembly and the rotation attitude adjustment assembly, or the telescopic components are connected between the rotation attitude adjustment assembly and the component under test. At least some of the telescopic components are arranged at intervals along a first direction, and at least some of the telescopic components are arranged at intervals along a second direction, and the first direction intersects the second direction.

[0014] In some embodiments, one end of the telescopic component has a first fixing portion, and the other end of the telescopic component has a first hinged portion, and the first hinged portion is a universal ball hinge.

[0015] In some embodiments, the tilt attitude adjustment assembly further includes a first support member, and the first support member is connected to the first hinged portions of the plurality of telescopic components.

[0016] In some embodiments, the plurality of telescopic components are arranged in a rectangular array.

[0017] In some embodiments, the rotation attitude adjustment assembly includes:

[0018] A second support member, which is rotatably connected to the tilt attitude adjustment assembly or the traveling assembly;

[0019] A first driving portion. When the second support member is rotatably connected to the tilt attitude adjustment assembly, the first driving portion is arranged between the second support member and the tilt attitude adjustment assembly. When the second support member is rotatably connected to the traveling assembly, the first driving portion is arranged between the second support member and the traveling assembly, and the first driving portion is used to drive the second support member to rotate.

[0020] In some embodiments, the traveling assembly includes a traveling frame and a plurality of traveling wheels, and the plurality of traveling wheels are arranged at the bottom of the traveling frame.

[0021] In some embodiments, the walking assembly further includes a second driving part, which is arranged on the walking frame and is in transmission connection with at least part of the walking wheels.

[0022] In some embodiments, a control system is further included, and the control system is connected to the walking assembly, the first adjusting assembly and the second adjusting assembly; or

[0023] The first adjusting assembly is the tilt attitude adjusting assembly, and the second adjusting assembly is the rotation attitude adjusting assembly. The tilt attitude adjusting assembly is used to drive the rotation attitude adjusting assembly and the test piece to swing synchronously and tilt relative to the walking assembly, and the mounting part is arranged on the rotation attitude adjusting assembly; or

[0024] The first adjusting assembly is the rotation attitude adjusting assembly, and the second adjusting assembly is the tilt attitude adjusting assembly. The rotation attitude adjusting assembly is used to drive the tilt attitude adjusting assembly and the test piece to rotate synchronously relative to the walking assembly, and the mounting part is arranged on the tilt attitude adjusting assembly.

[0025] The fuel tank noise test system according to the embodiment of the present invention includes:

[0026] A test device, which is the test device described in any one of the above embodiments, and the fuel tank is connected to the test device;

[0027] A noise detection component, which is connected to the test device or the fuel tank, and the noise detection component is used to acquire the noise generated during the shaking process of the fuel tank. Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of the test device according to the embodiment of the present invention.

[0029] Figure 2 is a schematic structural diagram of the test device from another perspective according to the embodiment of the present invention.

[0030] Figure 3 is a schematic structural diagram of the test device in the rear-tilt state according to the embodiment of the present invention.

[0031] Figure 4 is a schematic structural diagram of the test device in the front-tilt state according to the embodiment of the present invention.

[0032] Figure 5 is a schematic structural diagram of the test device in the right-tilt state according to the embodiment of the present invention.

[0033] Figure 6It is a schematic structural diagram of the test device in the left-tilt state according to an embodiment of the present utility model.

[0034] Figure 7 It is a schematic structural diagram of the tilt attitude adjustment assembly in an embodiment of the present utility model.

[0035] Reference numerals:

[0036] 100, test device;

[0037] 1, tilt attitude adjustment assembly; 11, telescopic member; 111, first hinge portion; 12, first support member;

[0038] 2, rotation attitude adjustment assembly; 21, second support member; 22, rotating shaft; 23, first driving portion;

[0039] 3, traveling assembly; 31, traveling wheels; 32, second driving portion;

[0040] 4, control system;

[0041] 5, fuel tank. Detailed implementation manners

[0042] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0043] See Figures 1-7 , according to the test device 100 of the embodiment of the present utility model, it includes a traveling assembly 3, a first adjustment assembly and a second adjustment assembly. The traveling assembly 3 is movable. The traveling assembly 3 moves along a track, or the traveling assembly 3 directly moves on the ground.

[0044] The first adjustment assembly is connected between the traveling assembly 3 and the second adjustment assembly. The second adjustment assembly has a mounting portion for connecting with a test piece. It should be understood that when the first adjustment assembly acts, it can adjust the second adjustment assembly and the test piece to act synchronously relative to the traveling assembly 3. When the second adjustment assembly acts, it can adjust the test piece to act relative to the traveling assembly 3. For the noise test of the fuel tank under the actual vehicle conditions, the test piece is a fuel tank, and the fuel tank is connected to the second adjustment assembly.

[0045] One of the first adjustment assembly and the second adjustment assembly is a tilt attitude adjustment assembly 1, and the other is a rotation attitude adjustment assembly 2. The tilt attitude adjustment assembly 1 is used to adjust the test piece to tilt and swing relative to the traveling assembly 3, and the rotation attitude adjustment assembly 2 is used to adjust the test piece to rotate relative to the traveling assembly 3.

[0046] When the component under test is the fuel tank 5, since the fuel tank 5 tilts, swings and turns synchronously with the vehicle body, the motion state of the oil fluid in the fuel tank 5 changes due to inertia with the change of the different postures of the vehicle body, and the generated noise also has different intensities. Therefore, the tilt attitude adjustment component 1 can adjust the tilt and swing attitude of the component under test relative to the traveling component 3 to simulate the motion state of the oil fluid under working conditions such as forward tilt, backward tilt and side tilt during actual vehicle operation. The rotation attitude adjustment component 2 can adjust the rotation angle of the component under test relative to the traveling component 3 to simulate the motion state of the oil fluid under the working condition of turning during actual vehicle operation, thereby realizing the simulation test of different postures of the fuel tank 5 under actual vehicle operation conditions, improving the coincidence degree between the simulation test environment and the actual vehicle conditions, so that the fuel tank 5 sloshing noise solution can be fully verified, reducing the risk of insufficient design and verification, and helping to improve the test effect of the fuel tank 5 sloshing noise.

[0047] For example, the first adjustment component is the tilt attitude adjustment component 1, and the second adjustment component is the rotation attitude adjustment component 2. At this time, the tilt attitude adjustment component 1 is located between the traveling component 3 and the rotation attitude adjustment component 2. The tilt attitude adjustment component 1 is used to drive the rotation attitude adjustment component 2 and the component under test to tilt and swing synchronously relative to the traveling component 3, and the installation part is arranged on the rotation attitude adjustment component 2.

[0048] When the tilt attitude adjustment component 1 acts, it can simulate working conditions such as forward tilt, backward tilt and side tilt during actual vehicle operation. At this time, the rotation attitude adjustment component 2 and the component under test (fuel tank 5) tilt and swing synchronously, and the component under test (fuel tank 5) is fixed on the installation part located on the rotation attitude adjustment component 2. When the rotation attitude adjustment component 2 acts, it can adjust the rotation angle of the component under test relative to the traveling component 3 to simulate the working condition of turning during actual vehicle operation.

[0049] Another example is that the first adjustment component is the rotation attitude adjustment component 2, and the second adjustment component is the tilt attitude adjustment component 1. At this time, the rotation attitude adjustment component 2 is located between the traveling component 3 and the tilt attitude adjustment component 1. The rotation attitude adjustment component 2 is used to drive the tilt attitude adjustment component 1 and the component under test to rotate synchronously relative to the traveling component 3, and the installation part is arranged on the tilt attitude adjustment component 1.

[0050] When the rotation attitude adjustment component 2 acts, it can adjust the rotation angles of the tilt attitude adjustment component 1 and the component under test (fuel tank 5) relative to the traveling component 3 to simulate the working condition of turning during actual vehicle operation. The component under test (fuel tank 5) is fixed on the installation part located on the tilt state adjustment component. When the tilt attitude adjustment component 1 acts, it can simulate working conditions such as forward tilt, backward tilt and side tilt during actual vehicle operation. At this time, the component under test (fuel tank 5) tilts and swings relative to the traveling component 3.

[0051] The traveling assembly 3 in the embodiment of the present utility model can provide power for the overall movement of the test device 100. When simulating the actual vehicle working conditions, it can realize the simulation of working conditions such as starting, accelerating, decelerating, and braking. Cooperating with the rotation attitude adjustment assembly 2 and the tilt attitude adjustment assembly 1, it can improve the coincidence degree between the simulated test environment and the actual vehicle working conditions.

[0052] The traveling assembly 3, the first adjustment assembly, and the second adjustment assembly are arranged in the up-down direction shown in the figure. The traveling assembly 3 is located at the bottom. The first adjustment assembly and the second adjustment assembly can be interchanged in their traveling positions, that is, the rotation attitude adjustment assembly 2 is arranged above the tilt attitude adjustment assembly 1, or the tilt attitude adjustment assembly 1 is arranged above the rotation attitude adjustment assembly 2.

[0053] The installation part is arranged on the mounting seat or mounting hole on the second adjustment assembly. The fuel tank can be connected to the installation part through connecting parts such as bolts and buckles.

[0054] In some embodiments, the tilt attitude adjustment assembly 1 includes a plurality of telescopic members 11. The telescopic members 11 are connected between the traveling assembly 3 and the rotation attitude adjustment assembly 2, or the telescopic members 11 are connected between the rotation attitude adjustment assembly 2 and the component to be tested. At least part of the telescopic members 11 are arranged at intervals along the first direction, and at least part of the telescopic members 11 are arranged at intervals along the second direction, and the first direction and the second direction intersect.

[0055] It should be understood that when a plurality of telescopic members 11 are connected between the traveling assembly 3 and the rotation attitude adjustment assembly 2, it is equivalent to the tilt attitude adjustment assembly 1 being arranged between the rotation attitude adjustment assembly 2 and the traveling assembly 3. At this time, the component to be tested (fuel tank 5) is connected to the rotation attitude adjustment assembly 2; when a plurality of telescopic members 11 are connected between the rotation attitude adjustment assembly 2 and the component to be tested, it is equivalent to the rotation attitude adjustment assembly 2 being arranged between the tilt attitude adjustment assembly 1 and the traveling assembly 3. At this time, the component to be tested (fuel tank 5) is connected to the tilt attitude adjustment assembly 1.

[0056] Optionally, the telescopic member 11 can be a cylinder, a hydraulic cylinder, an electric push rod, a lead screw and nut structure, a rack and pinion structure, or a link mechanism, etc.

[0057] The bottoms of the plurality of telescopic members 11 are used to support the structural members below them, and the tops of the telescopic members 11 are used to support the structural members above them. With the movement of at least part of the telescopic members 11, the tilt angle and tilt direction of the structural members above them relative to the horizontal plane can be adjusted, so as to realize the adjustment of the tilt attitude of the component to be tested (fuel tank 5).

[0058] Such as Figure 6 and Figure 7As shown, in some embodiments, one end of the telescopic member 11 has a first fixing portion, and the other end of the telescopic member 11 has a first hinge portion 111, and the first hinge portion 111 is a universal ball hinge. It should be understood that when the telescopic member 11 is located between the traveling assembly 3 and the rotation attitude adjustment assembly 2, the first fixing portion is used for fixedly connecting with the traveling assembly 3 located below it, and the first hinge portion 111 is used for connecting with the rotation attitude adjustment assembly 2 located above it.

[0059] When the telescopic member 11 is located between the rotation attitude adjustment assembly 2 and the component to be measured, the first fixing portion is used for fixedly connecting with the rotation attitude adjustment assembly 2 located below it, and the first hinge portion 111 is used for connecting with the component to be measured (fuel tank 5) located above it.

[0060] The first hinge portion 111 can be directly or indirectly connected to the rotation attitude adjustment assembly 2 or the component to be measured (fuel tank 5) in the above embodiments.

[0061] When using direct connection, connection ears can be provided on the rotation attitude adjustment assembly 2 or the component to be measured, and the first hinge portion 111 is connected to the corresponding connection ears.

[0062] When using indirect connection, in some embodiments, the tilt attitude adjustment assembly 1 further includes a first support member 12, and the first support member 12 is connected to the first hinge portions 111 of a plurality of telescopic members 11.

[0063] That is to say, by connecting the first support member 12 with a plurality of first hinge portions 111, the telescopic member 11 drives the first support member 12 to tilt and swing, and further enables the structural components arranged on the first support member 12 to tilt and swing synchronously. The first support member 12 can provide a support surface, which is more convenient for the installation and connection of the upper structural components, and can improve the overall structural stability.

[0064] Optionally, the first support member 12 can be used as a vehicle frame, and the first support member 12 can be made of any one or several of profiles, pipes or plates. For example, the first support member 12 is a plate, or for another example, the first support member 12 is formed by welding multiple pipes.

[0065] In some embodiments, a plurality of telescopic members are arranged in a rectangular array. It should be understood that a plurality of telescopic members are neatly arranged according to the specified number of rows and columns.

[0066] For example, the first direction is generally the traveling direction of the traveling component 3, which is equivalent to the length direction of the vehicle, that is, the front-rear direction shown in the figure. The second direction is generally the width direction of the traveling component 3, which is equivalent to the width direction of the vehicle, that is, the left-right direction shown in the figure. The telescopic components arranged along the first direction are in one row, and the telescopic components arranged along the second direction are in one column. Each telescopic component 11 can act independently. By controlling the telescopic actions of different telescopic components 11, the tilt angle and tilt direction of the component to be measured located above the tilt attitude adjustment component 1 can be changed.

[0067] For example, there are 4 telescopic components 11, and the 4 telescopic components 11 are distributed in a rectangular array of two rows and two columns.

[0068] For another example, there are 6 telescopic components 11, and the 6 telescopic components 11 are distributed in a rectangular array of two rows and three columns.

[0069] In some embodiments, the rotation attitude adjustment component 2 includes a second support member 21 and a first driving portion 23. The second support member 21 is rotatably connected to the tilt attitude adjustment component 1 or the traveling component 3. When the second support member 21 is rotatably connected to the tilt attitude adjustment component 1, the first driving portion 23 is arranged between the second support member 21 and the tilt attitude adjustment component 1. When the second support member 21 is rotatably connected to the traveling component 3, the first driving portion 23 is arranged between the second support member 21 and the traveling component 3. The first driving portion 23 is used to drive the second support member 21 to rotate.

[0070] It should be noted that the first driving portion 23 can be a servo motor. The servo motor can directly drive the second support member 21 to rotate through the rotating shaft 22, or can drive the second support member 21 to rotate through the meshing structure of the internal gear ring and the external gear ring. When the rotation attitude adjustment component 2 is located between the traveling component 3 and the tilt attitude adjustment component 1, the second support member 21 is rotatably supported on the traveling component 3 through the rotating shaft 22. At this time, the tilt attitude adjustment component 1 is installed on the second support member 21. When the servo motor in the rotation attitude adjustment component 2 drives the second support member 21 to rotate, the tilt attitude adjustment component 1 and the fuel tank 5 rotate synchronously.

[0071] When the tilt attitude adjustment component 1 is located between the rotation attitude adjustment component 2 and the traveling component 3, the second support member 21 is connected to the tilt attitude adjustment component 1 through the rotating shaft 22. At this time, a first support member 12 is arranged above the tilt attitude adjustment component 1, so that the second support member 21 and the first support member 12 are rotatably connected through the rotating shaft 22, or a base is arranged below the rotating shaft 22. The base is connected to the tilt attitude adjustment component 1, and the second support member 21 is rotatably connected to the base through the rotating shaft 22.

[0072] The second support member 21 can also be part of the vehicle frame. The second support member 21 can be made of any one or several of profiles, pipes, plates, etc. For example, the second support member 21 is a plate. For another example, the second support member 21 is formed by welding multiple pipes.

[0073] In some embodiments, the traveling assembly 3 includes a traveling frame and a plurality of traveling wheels 31. The plurality of traveling wheels 31 are provided at the bottom of the traveling frame. It should be understood that the traveling assembly 3 can drive the test device 100 to move, so as to simulate working conditions such as acceleration, deceleration, braking, and steering. The traveling frame of the traveling assembly 3 provides a support platform for the rotational attitude adjustment assembly 2 and the tilting attitude adjustment assembly 1.

[0074] Optionally, the traveling assembly 3 can be self-driven. A second driving part 32 is arranged on the traveling assembly 3. Specifically, the second driving part 32 is provided on the traveling frame. The second driving part 32 is in transmission connection with at least part of the traveling wheels 31. The second driving part 32 is a motor. The traveling wheels 31 are in two groups, respectively arranged at the front side and the rear side of the traveling frame. One group of traveling wheels 31 is connected by a transmission shaft, and the motor is in transmission connection with the transmission shaft.

[0075] Optionally, the traveling assembly 3 can be not provided with a power system. For example, the traveling assembly 3 is arranged on a track, and a pulling device such as a winch is used to pull the traveling assembly 3.

[0076] In some embodiments, the test device 100 further includes a control system 4. The control system 4 is connected to the traveling assembly 3, the first adjustment assembly, and the second adjustment assembly. The control system 4 adjusts and controls the traveling speed of the traveling assembly 3, the slewing angle of the rotational attitude adjustment assembly 2, the tilting angle and tilting azimuth of the tilting attitude adjustment assembly 1 according to the simulated real vehicle working conditions.

[0077] The fuel tank noise test system of the embodiment of the present utility model includes a test device 100 and a noise detection component. The test device 100 is the test device 100 in any one of the above embodiments. The fuel tank 5 is connected to the test device 100. The noise detection component is connected to the test device 100 or the fuel tank 5. The noise detection component is used to acquire the noise generated during the shaking process of the fuel tank 5.

[0078] The noise detection component can adopt devices such as a sound level meter and a spectrum analyzer. The sound level meter of the noise detection component can be installed on the test device 100 or the fuel tank 5. An installation bracket can also be arranged, and the sound level meter is connected to the test device 100 or the fuel tank 5 through the installation bracket to improve the effectiveness of the noise collected by the sound level meter.

[0079] When the tilt attitude adjustment component 1 is located between the rotary attitude adjustment component 2 and the traveling component 3, the noise detection component can be arranged on the second support 21 of the rotary attitude adjustment component 2 or on the fuel tank 5.

[0080] When the rotary attitude adjustment component 2 is located between the tilt attitude adjustment component 1 and the traveling component 3, the noise detection component can be arranged on the first support 12 of the tilt attitude adjustment component 1 or on the fuel tank 5.

[0081] At least some of the beneficial effects achieved by the fuel tank noise test system according to the embodiments of the present invention are the same as those achieved by the test device 100 in the above embodiments, so they will not be elaborated here.

[0082] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0083] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0084] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0085] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0086] In the present utility model, the terms "an embodiment", "some embodiments", "an example", "a specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0087] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A testing device, characterized in that: include: A walking component, wherein the walking component is movable; a first adjusting assembly and a second adjusting assembly, wherein the first adjusting assembly is connected between the walking assembly and the second adjusting assembly, and the second adjusting assembly has a mounting portion, and the mounting portion is used to be connected to the test piece; One of the first adjustment component and the second adjustment component is a tilt posture adjustment component, and the other is a rotation posture adjustment component. The tilt posture adjustment component is used to adjust the tilt swing of the test piece relative to the walking component, and the rotation posture adjustment component is used to adjust the rotation of the test piece relative to the walking component.

2. The testing device according to claim 1, characterized in that: The tilt attitude adjustment component comprises: A plurality of telescopic components are provided, wherein the telescopic components are connected between the walking component and the rotation posture adjustment component, or the telescopic components are connected between the rotation posture adjustment component and the test piece, at least some of the telescopic components are arranged at intervals along a first direction, and at least some of the telescopic components are arranged at intervals along a second direction, and the first direction and the second direction intersect.

3. The testing device according to claim 2, characterized in that: One end of the telescopic component has a first fixing portion, and the other end of the telescopic component has a first hinge portion, and the first hinge portion is a universal ball joint.

4. The testing device according to claim 3, characterized in that: The tilt posture adjustment assembly further includes a first support member connected to the first hinged portions of the plurality of telescopic components.

5. The testing device according to claim 2, characterized in that: The plurality of telescopic components are arranged in a rectangular array.

6. The testing device according to claim 1, characterized in that: The rotation posture adjustment component comprises: a second support member, the second support member being rotatably connected to the tilt posture adjustment assembly or the walking assembly; The first driving unit, when the second support member is rotationally connected to the tilt posture adjustment component, the first driving unit is arranged between the second support member and the tilt posture adjustment component, when the second support member is rotationally connected to the walking component, the first driving unit is arranged between the second support member and the walking component, and the first driving unit is used to drive the second support member to rotate.

7. The testing device according to claim 1, characterized in that: The walking assembly comprises a walking frame and a plurality of walking wheels, and the plurality of walking wheels are arranged at the bottom of the walking frame.

8. The testing device according to claim 7, characterized in that: The traveling assembly further comprises a second driving unit, which is arranged on the traveling frame and is transmission-connected to at least a portion of the traveling wheels.

9. The testing device according to any one of claims 1 to 8, characterized in that: Also includes a control system, the control system is connected to the walking component, the first adjustment component and the second adjustment component; or The first adjustment component is the tilt posture adjustment component, the second adjustment component is the rotation posture adjustment component, the tilt posture adjustment component is used to drive the rotation posture adjustment component and the test piece to be tested to tilt and swing synchronously relative to the walking component, and the mounting portion is provided on the rotation posture adjustment component; or The first adjustment component is the rotation posture adjustment component, the second adjustment component is the tilt posture adjustment component, the rotation posture adjustment component is used to drive the tilt posture adjustment component and the test piece to rotate synchronously relative to the walking component, and the mounting portion is provided on the tilt posture adjustment component.

10. A fuel tank noise testing system, characterized in that: include: A test device, wherein the test device is the test device according to any one of claims 1 to 9, and the fuel tank is connected to the test device; A noise detection component is connected to the test device or the fuel tank, and is used to obtain the noise generated during the shaking of the fuel tank.

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