Testing device

Abstract

The utility model relates to a testing device. The testing device comprises a rack, a loading device and a locking piece, the rack comprises a first support and a second support which are arranged at intervals, the first support is provided with a supporting face facing the second support, and the second support is used for being connected with a to-be-tested piece; the loading device is arranged between the first support and the second support and comprises a length-adjustable telescopic part, the telescopic part is obliquely arranged relative to the supporting surface, a first included angle is formed between the telescopic direction of the telescopic part and the supporting surface, the angle value of the first included angle is adjustable, and one end, deviating from the rack in the telescopic direction, of the telescopic part is used for being connected with a to-be-tested part; the locking piece is detachably connected to at least one of the rack and the loading device so as to lock or unlock the relative position of the loading device and the first support. The testing device can test the to-be-tested piece at various angles such as 0 degree, 30 degrees and 45 degrees by changing the first angle value, multi-angle testing can be achieved, the testing precision is high, and the accuracy of performance evaluation of the to-be-tested piece is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of vehicle testing, and in particular, relates to a testing device. Background Art

[0002] A trailer rack is a towing device. When a vehicle is trapped in a dangerous environment, the trailer rack can be used to help the vehicle get out of the predicament with the help of external force. In addition, the trailer rack can also be used to tow RVs. At present, the trailer rack has become a necessary component for vehicles.

[0003] When a vehicle is towed by a trailer frame, the trailer frame needs to have sufficient strength and durability to avoid the trailer frame from breaking or being damaged. Therefore, it is necessary to test the strength and durability of the trailer frame.

[0004] When testing the strength and durability of a trailer frame, in the related art, the testing device can only perform single-angle testing, resulting in low test accuracy, which is not conducive to accurate evaluation of the trailer frame performance. Utility Model Content

[0005] The embodiment of the present application provides a testing device, which can realize multi-angle testing when testing a trailer frame at multiple angles, has high testing accuracy, and improves the accuracy of performance evaluation of the trailer frame waiting to be tested.

[0006] The embodiment of the present application provides a device, comprising: a frame, comprising a first bracket and a second bracket arranged at an interval, the first bracket having a support surface arranged toward the second bracket, and the second bracket being used to connect to a test piece; a loading device, arranged between the first bracket and the second bracket, the loading device comprising a telescopic member with adjustable length, the telescopic member being inclined relative to the support surface, the telescopic direction of the telescopic member being arranged at a first angle to the support surface and the angle value of the first angle being adjustable, and an end of the telescopic member away from the frame along the telescopic direction being used to connect to the test piece; a locking member, detachably connected to at least one of the frame and the loading device, to lock or unlock the relative position of the loading device and the first bracket.

[0007] In some embodiments, the testing device further comprises a connecting assembly, one end of which is detachably connected to an end of the telescopic member away from the first bracket along the telescopic direction, and the other end of the connecting assembly is detachably connected to the test piece.

[0008] In some embodiments, the telescopic member has a first connecting surface at one end facing away from the frame along the telescopic direction, the connecting assembly includes a first connecting member and a second connecting member, the first connecting member includes a first fixed surface and a second connecting surface, the first connecting member is detachably connected to the telescopic member, and the first connecting surface abuts the second connecting surface, the first connecting surface and the second connecting surface are arranged at a second angle and the angle value of the second angle matches the angle value of the first angle, the first fixed surface is parallel to the supporting surface, the second connecting member extends in a direction perpendicular to the supporting surface, and the first fixed surface and the second connecting member are detachably connected.

[0009] In some embodiments, the loading device also includes an adjusting member, which is detachably connected to the telescopic member. The adjusting member has a second fixed surface and a third connecting surface. The second fixed surface is connected to the telescopic member, and the second fixed surface is perpendicular to the telescopic direction of the telescopic member. The third connecting surface abuts the supporting surface.

[0010] In some embodiments, the loading device is rotatably connected to the first bracket.

[0011] In some embodiments, the testing device further includes a driving cylinder connected between the frame and the loading device to drive the loading device to rotate relative to the first bracket.

[0012] In some embodiments, the rack further includes a base, the first bracket and the second bracket are both detachably connected to the base, the first bracket, the second bracket and the base enclose a test space, and the loading device and the test piece are both placed in the test space.

[0013] In some embodiments, the second bracket includes support units arranged in pairs, the center of the first bracket is located on the median of the connecting line of the centers of the support units arranged in pairs, and the testing device also includes a simulation frame, each support unit is respectively connected to a simulation frame, and the simulation frame is configured to be detachably connected to the test piece.

[0014] In some embodiments, the testing device further includes a sensor, which is disposed on the connecting assembly and configured to measure the magnitude of a load applied by the loading device to the test piece.

[0015] In some embodiments, the testing device further includes a controller, which is disposed on the frame and electrically connected to the loading device and the sensor.

[0016] According to the test device provided in the present application, the frame includes a first bracket and a second bracket arranged at intervals, the first bracket is used to connect the loading device, the second bracket is used to connect the test piece, the first bracket has a support surface arranged toward the second bracket, the loading device includes a telescopic member with adjustable length, the telescopic member is inclined relative to the support surface, the telescopic direction of the telescopic member is arranged at a first angle with the support surface and the angle value of the first angle is adjustable, when the trailer frame is required to wait for the test piece to be inspected, a load can be applied to the test piece through the loading device, since the angle value of the first angle between the telescopic direction of the telescopic member and the support surface is adjustable, the test piece can be tested at various angles such as 0°, 30° and 45° by changing the first angle value, and multi-angle testing can be achieved with high test accuracy, thereby improving the accuracy of performance evaluation of the trailer frame waiting for the test piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for use in the embodiment of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the testing device provided in some embodiments of the utility model;

[0019] Figure 2 is a front view of a testing device provided by some embodiments of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the test piece provided by some embodiments of the utility model.

[0021] Marking Description:

[0022] 1. rack; 11. first bracket; 111. support surface; 12. second bracket; 121. support unit; 13. base; 131. base body; 132. support leg;

[0023] 2. Items to be tested;

[0024] 3. Loading device; 31. Telescopic member; 32. Adjusting member; 321. Second fixing surface; 322. Third connecting surface;

[0025] 4. Connecting assembly; 41. First connecting member; 411. First fixing surface; 412. Second connecting surface; 42. Second connecting member;

[0026] 5. Simulate the frame;

[0027] 6. Controller;

[0028] X-extension direction; θ-first angle; φ-second angle.

[0029] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0030] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0032] See also Figures 1 to 3 , an embodiment of the present application provides a test device, which includes a frame 1, a loading device 3 and a locking member. The frame 1 includes a first bracket 11 and a second bracket 12 arranged at intervals, the first bracket 11 has a support surface 111 arranged toward the second bracket 12, and the second bracket 12 is used to connect the test piece 2. The loading device 3 is arranged between the first bracket 11 and the second bracket 12, and the loading device 3 includes a telescopic member 31 with adjustable length, the telescopic member 31 is inclined relative to the support surface 111, the telescopic direction X of the telescopic member 31 is set at a first angle θ with the support surface 111, and the angle value of the first angle θ is adjustable, and the end of the telescopic member 31 away from the frame 1 along the telescopic direction X is used to connect with the test piece 2. The locking member is detachably connected to at least one of the frame 1 and the loading device 3 to lock or unlock the relative position of the loading device 3 and the first bracket 11.

[0033] See also Figure 1 and Figure 2The first bracket 11 includes but is not limited to a cylinder or a prism. When it is a cylinder, a portion of the area along the axial direction of the cylinder can be cut off to form a support surface 111. When it is a prism, the support surface 111 can be one of the side surfaces of the prism. The support surface 111 can be a vertical surface extending in the vertical direction, or an inclined surface with a certain inclination angle to the vertical direction. Exemplarily, the first bracket 11 can be a square column, and the support surface 111 can be a surface of the first bracket 11 arranged on the side facing the second bracket 12.

[0034] See also Figures 1 to 3 The test piece 2 is connected to the second bracket 12, and the connection can be a detachable connection. The detachable connection can be detachably connected by fastening with fasteners such as bolts, or by partially extending one into the other for snap-fitting.

[0035] The telescopic member 31 includes but is not limited to a telescopic cylinder, a sleeve and a rope pulley matching structure, etc. The telescopic cylinder can be selected and can be one of a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

[0036] The test piece 2 is connected to the end of the telescopic piece 31 away from the frame 1 along the telescopic direction X. The connection can be a detachable connection. The detachable connection can be detachably connected by fastening with fasteners such as bolts, or by partially extending one into the other for snap-fitting.

[0037] The object to be tested 2 may be a trailer frame.

[0038] The locking member includes but is not limited to a locking bolt, a locking pin, etc. The locking member is detachably connected to at least one of the frame 1 and the loading device 3 by means of threaded connection, plug-in connection, etc.

[0039] In summary, according to a test device provided in an embodiment of the present application, the frame 1 includes a first bracket 11 and a second bracket 12 arranged at intervals, the first bracket 11 is used to connect the loading device 3, and the second bracket 12 is used to connect the test piece 2, the first bracket 11 has a support surface 111 arranged toward the second bracket 12, the loading device 3 includes a telescopic member 31 with adjustable length, the telescopic member 31 is inclined relative to the support surface 111, the telescopic direction X of the telescopic member 31 is set at a first angle θ with the support surface 111, and the angle value of the first angle θ is adjustable. When the trailer frame is required to wait for the test piece 2 for inspection, a load can be applied to the test piece 2 through the loading device 3. Since the angle value of the first angle θ between the telescopic direction X of the telescopic member 31 and the support surface 111 is adjustable, the test piece 2 can be tested at multiple angles such as 0°, 30° and 45° by changing the first angle value, and multi-angle testing can be achieved with high test accuracy, thereby improving the accuracy of the performance evaluation of the trailer frame waiting test piece, so as to test the strength and durability of the test piece 2. Furthermore, the locking member is detachably connected to at least one of the frame 1 and the loading device 3 to lock or unlock the relative position of the loading device 3 and the first bracket 11, thereby ensuring the first angle adjustment requirement and the locking requirement after the first angle is adjusted to a predetermined angle.

[0040] See also Figures 1 to 3 In some embodiments, the testing device further includes a connecting component 4, one end of which is detachably connected to an end of the telescopic member 31 away from the first bracket 11 along the telescopic direction X, and the other end of the connecting component 4 is detachably connected to the test piece 2.

[0041] One end of the connecting component 4 is detachably connected to the end of the telescopic member 31 away from the first bracket 11 along the telescopic direction X, and the other end of the connecting component 4 is detachably connected to the test piece 2. The detachable connection can be detachably connected by fastening with fasteners such as bolts, or by partially extending one into the other for snap-fitting.

[0042] The frame assembly provided in one embodiment of the present application facilitates the connection between the telescopic member 31 and the test piece by setting a connecting component 4. In addition, the connecting component 4, the telescopic member 31 and the test piece 2 are all detachably connected. If the connecting component is damaged during the test, the connecting component 4 can be conveniently replaced to avoid affecting the test progress.

[0043] In some embodiments, the loading device 3 also includes an adjusting member 32, which is detachably connected to the telescopic member 31. The adjusting member 32 has a second fixed surface 321 and a third connecting surface 322. The second fixed surface 321 is connected to the telescopic member 31, and the second fixed surface 321 is perpendicular to the telescopic direction X of the telescopic member 31. The third connecting surface 322 abuts against the support surface 111.

[0044] In some embodiments, the adjusting member 32 and the telescopic member 31 are detachably connected to each other. The detachable connection can be detachably connected by fastening with fasteners such as bolts, or by partially extending one into the other for snap-fitting.

[0045] The test device provided by one embodiment of the present application can conveniently connect the telescopic member 31 to the first bracket 11 by setting an adjustment member 32. In addition, the adjustment member 32 can be detachably connected to the first bracket 11 and the telescopic member 31, and the angle value of the first angle θ can be adjusted by replacing the adjustment member 32. Exemplarily, when a 30° test is required on the test piece, the angle value of the first angle θ is set to 30° by replacing the adjustment member 32. Specifically, by replacing the adjustment member 32, the angle value of the angle between the third connecting surface 322 and the supporting surface 111 is set to 30°.

[0046] In some embodiments, the telescopic member 31 has a first connecting surface at one end away from the frame 1 along the telescopic direction X, the connecting assembly 4 includes a first connecting member 41 and a second connecting member 42, the first connecting member 41 includes a first fixing surface 411 and a second connecting surface 412, the first connecting member 41 is detachably connected to the telescopic member 31, and the first connecting surface abuts the second connecting surface 412, the first connecting surface and the second connecting surface 412 are set at a second angle φ, and the angle value of the second angle φ matches the angle value of the first angle θ, the first fixing surface 411 is parallel to the supporting surface 111, the second connecting member 42 extends in a direction perpendicular to the supporting surface 111, and the first fixing surface 411 and the second connecting member 42 are detachably connected.

[0047] Furthermore, a mounting hole is provided at one end of the test piece 2 close to the connecting assembly 4, and a portion of the second connecting piece 42 is placed in the mounting hole.

[0048] The test device provided in one embodiment of the present application can conveniently adjust the direction of the load applied to the test piece 2 by setting the angle value of the second angle φ to match the angle value of the first angle θ. For example, when a 30° test is required on the test piece, a suitable adjustment member 32 is selected to make the angle value of the first angle θ 30°, and then a suitable connection component 4 is selected to make the angle value of the second angle φ also 30°.

[0049] In some embodiments, the rack 1 also includes a base 13, and the first bracket 11 and the second bracket 12 are both detachably connected to the base 13. The first bracket 11, the second bracket 12 and the base 13 enclose a test space, and the loading device 3 and the test piece 2 are both placed in the test space.

[0050] Specifically, the first bracket 11 and the second bracket 12 are both detachably connected to the base 13 via fasteners.

[0051] In some embodiments, the base 13 includes a base body 131 and a support leg 132, the first bracket 11 and the second bracket 12 are both connected to the base body 131, and the support leg 132 is disposed at one end of the base body 131 away from the first bracket 11 and the second bracket 12, and is connected to the support body. The support leg 132 is connected to the external connection surface.

[0052] A testing device provided in an embodiment of the present application is capable of adjusting the distance between the first bracket 11 and the second bracket 12, thereby enabling the testing device to adapt to test pieces 2 of more sizes, thereby improving the applicability of the testing device.

[0053] In some embodiments, the second bracket 12 includes support units 121 arranged in pairs, the center of the first bracket 11 is located on the midline of the center line of the support units 121 arranged in pairs, and the testing device also includes a simulation frame 5, each support unit 121 is respectively connected to a simulation frame 5, and the simulation frame 5 is configured to be detachably connected to the test piece 2.

[0054] The testing device provided in one embodiment of the present application can more accurately simulate the actual towing process by providing a simulated frame 5.

[0055] In some embodiments, the testing device further comprises a sensor, which is disposed on the connecting assembly 4 and is configured to measure the magnitude of the load applied by the loading device 3 to the test piece 2. Exemplarily, the sensor may be a force sensor.

[0056] A testing device provided in an embodiment of the present application is provided with a sensor to facilitate measurement of the magnitude of the load applied by the loading device 3 to the test piece 2 during the test process.

[0057] In some embodiments, the testing device further includes a controller 6 , which is disposed on the frame 1 , and is electrically connected to the loading device 3 and the sensor.

[0058] Furthermore, the controller 6 is arranged on the first bracket 11 , which facilitates the electrical connection between the controller 6 and the loading device 3 , making the structure of the testing device more compact.

[0059] A testing device provided in an embodiment of the present application can realize automatic control of the loading device 3 to apply a load to the test piece 2 by setting the controller 6 to be electrically connected with the loading device 3, and the controller 6 is electrically connected with the sensor to realize automatic data collection and analysis.

[0060] It can be understood that in the above embodiments of the present application, the loading device 3 also includes an adjusting member 32, and the first angle adjustment is achieved by replacing the adjusting member 32. This is an optional embodiment, but is not limited to the above embodiment. In some embodiments, the loading device 3 can also be rotatably connected to the first bracket 11, and the telescopic member 31 can be directly or indirectly rotatably connected to the first bracket 11.

[0061] The test device provided in one embodiment of the present application adjusts the angle value of the first angle θ by setting the loading device 3 to be rotatably connected to the first bracket 11. For example, when a 30° test is required on the test piece, the loading device 3 is rotated to make the angle value of the first angle θ 30°, and after adjusting to the predetermined angle, the adjusted position is locked by the locking member.

[0062] In some embodiments, the testing device further includes a driving cylinder connected between the frame 1 and the loading device 3 to drive the loading device 3 to rotate relative to the first bracket 11 .

[0063] Specifically, one end of the driving cylinder is connected to the frame 1, and the output end of the driving rod is connected to the loading device 3. The output of the output end of the driving rod is adjusted to thereby adjust the angle value of the first angle θ.

[0064] Furthermore, the driving cylinder is electrically connected to an external control device, and the control device controls the extension and retraction of the telescopic rod of the driving cylinder, so that the angle value of the first angle θ can be automatically adjusted, saving time and effort.

[0065] Further, the drive cylinder may be an electric drive cylinder or a hydraulic drive cylinder.

[0066] A testing device provided in an embodiment of the present application adjusts the angle value of the first angle θ by setting a driving cylinder, and has a simple structure and is easy to operate.

[0067] In some embodiments, the loading device 3 can apply different loads to the test piece 2. Exemplarily, the loading device 3 can apply a tensile force of F=0.6D±3% (D is the longitudinal force between the loading device 3 and the test piece 2), the tensile force frequency does not exceed 35Hz, and the load is applied according to a sine curve, so the test device can perform durability tests and strength tests on the test piece 2.

[0068] Working principle:

[0069] See also Figures 1 to 3According to the size of the test piece 2, the first bracket 11 and the second bracket 12 are fixed on the base 13, and the appropriate adjustment member 32 and the connecting assembly 4 are selected. The telescopic member 31 is connected to the first bracket 11 by the adjustment member 32, and the test piece 2 is connected to the second bracket 12 by the simulated frame 5. The telescopic member 31 is connected to the test piece 2 by the connecting assembly 4, and the telescopic member 31 is controlled by the controller 6 to apply a load to the test piece 2, thereby completing the durability or strength test. By replacing the adjustment member 32 and the connecting assembly 4, the test angle can be changed.

[0070] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A testing device, characterized in that: include: The frame comprises a first bracket and a second bracket arranged at an interval, wherein the first bracket has a supporting surface arranged toward the second bracket, and the second bracket is used for connecting a to-be-tested piece; A loading device is arranged between the first bracket and the second bracket, the loading device comprises a telescopic member with adjustable length, the telescopic member is arranged obliquely relative to the supporting surface, the telescopic direction of the telescopic member is arranged at a first angle with the supporting surface, and the angle value of the first angle is adjustable, and an end of the telescopic member away from the frame along the telescopic direction is used to connect with the test piece; The locking member is detachably connected to at least one of the frame and the loading device to lock or unlock the relative position of the loading device and the first bracket.

2. The testing device according to claim 1, characterized in that: The testing device further comprises a connecting assembly, one end of which is detachably connected to an end of the telescopic member away from the first bracket along the telescopic direction, and the other end of which is detachably connected to the test piece.

3. The testing device according to claim 2, characterized in that: The telescopic member has a first connecting surface at one end away from the frame along the telescopic direction, and the connecting assembly includes a first connecting member and a second connecting member, the first connecting member includes a first fixing surface and a second connecting surface, the first connecting member is detachably connected to the telescopic member, and the first connecting surface abuts against the second connecting surface, the first connecting surface and the second connecting surface are arranged at a second angle, and the angle value of the second angle matches the angle value of the first angle, the first fixing surface is parallel to the supporting surface, the second connecting member extends in a direction perpendicular to the supporting surface, and the first fixing surface and the second connecting member are detachably connected.

4. The testing device according to claim 1, characterized in that: The loading device also includes an adjusting member, which is detachably connected to the telescopic member. The adjusting member has a second fixed surface and a third connecting surface. The second fixed surface is connected to the telescopic member, and the second fixed surface is perpendicular to the telescopic direction of the telescopic member. The third connecting surface abuts the supporting surface.

5. The testing device according to claim 1, characterized in that: The loading device is rotatably connected to the first bracket.

6. The testing device according to claim 5, characterized in that: The testing device further comprises a driving cylinder connected between the frame and the loading device to drive the loading device to rotate relative to the first bracket.

7. The testing device according to any one of claims 1 to 6, characterized in that: The frame also includes a base, the first bracket and the second bracket are both detachably connected to the base, the first bracket, the second bracket and the base surround a test space, and the loading device and the test piece are both placed in the test space.

8. The testing device according to any one of claims 1 to 6, characterized in that: The second bracket includes supporting units arranged in pairs, the center of the first bracket is located on the perpendicular bisector of the center line of the supporting units arranged in pairs, and the testing device also includes a simulation frame, each of the supporting units is respectively connected to the simulation frame, and the simulation frame is configured to be detachably connected to the test piece.

9. The testing device according to claim 2 or 3, characterized in that: The testing device further comprises a sensor, which is disposed on the connecting assembly and is configured to measure the magnitude of a load applied by a loading device to the test piece.

10. The testing device according to claim 9, characterized in that: The testing device further includes a controller, which is disposed on the frame and is electrically connected to the loading device and the sensor.

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