Damping test environment box

Abstract

The utility model discloses a damping test environment box. The damping test environment box comprises a test box body, a clamping mechanism, a vibration exciter, a microphone and a computer system, the test box body is provided with a convex and communicated T-shaped sleeve for bearing a steel plate to be tested; the clamping mechanism comprises a plurality of clamping jaws and a sliding traction self-locking piece. The multiple clamping jaws are annularly arranged at the edge of the end of the T-shaped sleeve at equal intervals and rotationally connected with the T-shaped sleeve. The sliding traction self-locking piece is arranged on the outer wall of the T-shaped sleeve and connected with the multiple clamping jaws. The vibration exciter is arranged on the outer wall of the test box body; and the microphone is arranged in the test box body and is in signal connection with the computer system. Through the arrangement, the steel plate can be conveniently assembled and disassembled while a damping test is carried out on the steel plate, so that the time required for testing a single steel plate is shortened, and the test speed is improved.

Description

Technical Field

[0001] The utility model relates to the field of damping test, in particular to a damping test environment box. Background Art

[0002] The shell of a vehicle is generally made of steel plates. During the driving process of the vehicle, the steel plates will generate vibration and noise. Excessive vibration and noise will seriously affect the comfort of the driver and passengers, and will also cause noise pollution to the outside world.

[0003] The existing Chinese patent publication number CN210626397U proposes a damping test device, which is provided with a test box body with an opening on one side, a mounting frame, an exciter, a microphone and a computer system. The mounting frame is used to position the steel plate to be tested, and then the steel plate is vibrated by the exciter so that the microphone can receive the sound generated by the steel plate. Finally, the computer system is used to obtain the damping parameters of the steel plate according to the vibration frequency and the sound size, so as to facilitate the selection of steel plates with better damping performance.

[0004] However, the above device has certain defects: for example, when testing a steel plate with a constrained simulated boundary, a threaded connection is used to complete the connection between the mounting frame and the steel plate. This connection method is not conducive to the rapid disassembly and installation of the steel plate, affecting the test rate.

[0005] Therefore, a damping test environment box is needed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a damping test environment box, so as to facilitate the installation and disassembly of the steel plate while performing damping tests on the steel plate, shorten the time required for testing a single steel plate, and improve the test rate.

[0007] In order to solve the above technical problems, the utility model provides a damping test environment box, including a test box body, a clamping mechanism, an exciter, a microphone and a computer system;

[0008] The test box body has a protruding and connected T-shaped sleeve to carry the steel plate to be tested;

[0009] The clamping mechanism includes a plurality of clamping claws and a sliding traction self-locking member;

[0010] The plurality of claws are arranged in an annular shape and equidistantly at the end edge of the T-shaped sleeve, and are rotatably connected to the T-shaped sleeve, and can be turned over to fit the steel plate to be tested;

[0011] The sliding traction self-locking member is arranged on the outer wall of the T-shaped sleeve and is connected to the plurality of the claws, and is used to control the deflection of the claws and keep them fixed;

[0012] The exciter is arranged on the outer wall of the test box body and can be moved to contact with the steel plate to be tested;

[0013] The microphone is arranged inside the test box body and is connected to the computer system signal.

[0014] Furthermore, the sliding traction self-locking member includes a sliding ring and a hinged rod;

[0015] The slip ring is slidably mounted on the outer wall of the T-shaped sleeve;

[0016] One end of the hinged rod is hinged to the upper surface of the slip ring, and the other end is hinged to the claw.

[0017] Furthermore, an angle is always formed between the hinge rod and the inner wall of the T-shaped sleeve.

[0018] Furthermore, the sliding traction self-locking member also includes a threaded ring;

[0019] The threaded ring is threadably mounted on the outer wall of the T-shaped sleeve and is rotationally connected to a side of the sliding ring away from the hinge rod.

[0020] Furthermore, a sealing member is provided on the side of the clamping claw that is in contact with the steel plate to be tested and on the side of the T-shaped sleeve that is in contact with the steel plate to be tested.

[0021] Furthermore, the sealing member is configured as a sealing gasket.

[0022] Furthermore, the vibration exciter is installed on the test box body through a rotating lifting support, so that the vibration exciter can be rotated and lifted to contact or separate from the steel plate to be tested.

[0023] Furthermore, the microphone is suspended inside the test box body through a support.

[0024] Furthermore, the support member is configured as a plurality of elastic traction ropes.

[0025] Furthermore, the receiving end of the microphone is arranged facing the T-shaped sleeve.

[0026] Compared with the prior art, the utility model has at least the following beneficial effects:

[0027] By setting up a clamping mechanism including a clamping claw and a sliding traction self-locking part, and using a T-sleeve protruding from the test box body, when the steel plate to be tested needs to be installed, it is only necessary to place the steel plate to be tested on the end face of the T-sleeve, and then control the operation of the sliding traction self-locking part to make multiple clamping claws flip over to fit with the steel plate to be tested, thereby fixing the steel plate to be tested. When driven in reverse, the steel plate to be tested can be disassembled, thereby effectively shortening the time required for testing a single steel plate to be tested, thereby improving the test rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the damping test environment box of the utility model.

[0029] Figure numbers: 1. Test box body; 11. T-type sleeve; 2. Clamping mechanism; 21. Clamping claw; 22. Slip ring; 23. Articulated rod; 24. Threaded ring; 3. Microphone; 4. Vibrator; 5. Sealing element; 6. Rotating lifting support; 7. Support element. DETAILED DESCRIPTION

[0030] The damping test environment box of the utility model will be described in more detail below in conjunction with the schematic diagram, wherein the preferred embodiment of the utility model is shown. It should be understood that those skilled in the art can modify the utility model described herein and still achieve the beneficial effects of the utility model. Therefore, the following description should be understood as being widely known to those skilled in the art and not as a limitation to the utility model.

[0031] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0032] like Figure 1 As shown, an embodiment of the utility model provides a damping test environment box, including a test box body 1, a clamping mechanism 2, an exciter 4, a microphone 3 and a computer system.

[0033] The test box body 1 has a protruding and connected T-shaped sleeve 11 to carry the steel plate to be tested.

[0034] The clamping mechanism 2 includes a plurality of clamping claws 21 and a sliding traction self-locking member.

[0035] The plurality of claws 21 are arranged in an annular shape and equidistantly at the end edge of the T-shaped sleeve 11, and are rotatably connected to the T-shaped sleeve 11, and can be turned over to fit the steel plate to be tested;

[0036] The sliding traction self-locking member is arranged on the outer wall of the T-shaped sleeve 11 and is connected to the multiple claws 21, and is used to control the deflection of the claws 21 and keep them fixed, that is, the sliding traction self-locking member can control the multiple claws 21 to flip to fit with the steel plate to be tested. After completing the limiting of the steel plate to be tested, it can also control the claws 21 to self-lock and fix, so as to ensure stability during subsequent tests.

[0037] The vibration exciter 4 is disposed on the outer wall of the test box body 1 and can be moved to contact the steel plate to be tested to vibrate the steel plate to be tested.

[0038] The microphone 3 is arranged inside the test box body 1 and is connected to the computer system signal. The microphone 3 receives the sound generated when the steel plate to be tested vibrates, and the computer system integrates the vibration frequency and the sound volume to complete the data analysis of the damping of the steel plate to be tested. This is the existing technology and will not be elaborated here.

[0039] Therefore, the present device is provided with a clamping mechanism 2 including a clamping claw 21 and a sliding traction self-locking member, and with the help of a T-shaped sleeve 11 protruding from the test box body 1, so that when the steel plate to be tested needs to be installed, it is only necessary to place the steel plate to be tested on the end face of the T-shaped sleeve 11, and then control the operation of the sliding traction self-locking member to make the multiple clamping claws 21 flip over to fit with the steel plate to be tested, thereby fixing the steel plate to be tested. When driven in reverse, the steel plate to be tested can be disassembled, thereby effectively shortening the time required for testing a single steel plate to be tested, thereby improving the test rate.

[0040] In other embodiments, the sliding traction self-locking member is further limited to better control the flipping of the claw 21 to fit or separate from the steel plate to be tested.

[0041] Specifically, the sliding traction self-locking member includes a sliding ring 22 and a hinge rod 23 .

[0042] The slip ring 22 is slidably mounted on the outer wall of the T-shaped sleeve 11, one end of the hinged rod 23 is hinged to the upper surface of the slip ring 22, and the other end is hinged to the claw 21, so that when the slip ring 22 moves, the hinged rod 23 can deflect, and correspondingly can pull the claw 21 to flip, so as to achieve its adhesion or separation with the steel plate to be tested.

[0043] It should be noted that an angle is always formed between the hinge rod 23 and the inner wall of the T-shaped sleeve 11 to prevent jamming.

[0044] In addition, in order to lock the adjusted claw 21 , the sliding traction self-locking member further includes a threaded ring 24 .

[0045] The threaded ring 24 is threadedly mounted on the outer wall of the T-sleeve 11, and is rotatably connected to the side of the slip ring 22 away from the hinged rod 23. The self-locking property of the threaded ring 24 allows the height of the slip ring 22 to remain unchanged, and accordingly, the hinged rod 23 and the claw 21 can also be fixed accordingly, so that during testing, the failure of the claw 21 to flip over will not result in a poor limiting effect on the tested steel plate.

[0046] In other embodiments, a seal 5 is provided on the side where the claw 21 fits against the steel plate to be tested and on the side where the T-sleeve 11 fits against the steel plate to be tested to reduce noise interference caused by the fitting positions of the steel plate to be tested, the claw 21 and the T-sleeve 11.

[0047] Wherein, the sealing member 5 is configured as a sealing gasket.

[0048] In a further embodiment, the exciter 4 is installed on the test box body 1 by a rotating lifting support 6, so that the exciter 4 can be rotated and lifted to contact or separate from the steel plate to be tested, ensuring that the setting of the exciter 4 will not interfere with the picking up and placement of the steel plate to be tested.

[0049] In addition, the microphone 3 is suspended inside the test box body 1 through a support 7 .

[0050] Wherein, the support member 7 is configured as a plurality of elastic traction ropes.

[0051] In another embodiment, in order to improve the sound receiving effect of the microphone 3 , the receiving end of the microphone 3 is arranged to face the T-shaped sleeve 11 .

[0052] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A damping test environment chamber, characterized in that: It includes a test box body, a clamping mechanism, a vibrator, a microphone and a computer system; The test box body has a protruding and connected T-shaped sleeve to carry the steel plate to be tested; The clamping mechanism includes a plurality of clamping claws and a sliding traction self-locking member; The plurality of claws are arranged in an annular shape and equidistantly at the end edge of the T-shaped sleeve, and are rotatably connected to the T-shaped sleeve, and can be turned over to fit the steel plate to be tested; The sliding traction self-locking member is arranged on the outer wall of the T-shaped sleeve and is connected to the plurality of the claws, and is used to control the deflection of the claws and keep them fixed; The exciter is arranged on the outer wall of the test box body and can be moved to contact with the steel plate to be tested; The microphone is arranged inside the test box body and is connected to the computer system signal.

2. The damping test environment chamber according to claim 1, characterized in that: The sliding traction self-locking member comprises a sliding ring and a hinged rod; The slip ring is slidably mounted on the outer wall of the T-shaped sleeve; One end of the hinged rod is hinged to the upper surface of the slip ring, and the other end is hinged to the claw.

3. The damping test environment box according to claim 2, characterized in that: An angle is always formed between the hinge rod and the inner wall of the T-shaped sleeve.

4. The damping test environment box according to claim 2, characterized in that: The sliding traction self-locking member also includes a threaded ring; The threaded ring is threadably mounted on the outer wall of the T-shaped sleeve and is rotationally connected to a side of the sliding ring away from the hinge rod.

5. The damping test environment box according to claim 1, characterized in that: The side of the clamping claw that is in contact with the steel plate to be tested and the side of the T-shaped sleeve that is in contact with the steel plate to be tested are both provided with sealing members.

6. The damping test environment box according to claim 5, characterized in that: The sealing element is configured as a sealing gasket.

7. The damping test environment box according to claim 1, characterized in that: The exciter is installed on the test box body through a rotating lifting support, so that the exciter can be rotated and lifted to contact or separate from the steel plate to be tested.

8. The damping test environment box according to claim 1, characterized in that: The microphone is suspended inside the test box body through a support.

9. The damping test environment box according to claim 8, characterized in that: The support member is configured as a plurality of elastic traction ropes.

10. The damping test environment box according to claim 1, characterized in that: The receiving end of the microphone is arranged opposite to the T-shaped sleeve.

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