CN215952912U - Vibration test system - Google Patents
Vibration test system Download PDFInfo
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- CN215952912U CN215952912U CN202122167767.1U CN202122167767U CN215952912U CN 215952912 U CN215952912 U CN 215952912U CN 202122167767 U CN202122167767 U CN 202122167767U CN 215952912 U CN215952912 U CN 215952912U
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Abstract
The utility model discloses a vibration test system, comprising: the vibration test device comprises a vibration table and a test box positioned above the vibration table, wherein the vibration table comprises a table body and a moving coil which can extend out of the upper end face of the table body, and a closed accommodating space is arranged in the test box; the annular sealing element is vertically arranged and is positioned between the upper end surface of the table body and the test box; the movable coil can extend into the inner space of the annular sealing element, and the lower end face of the test box is provided with a through hole for communicating the inner space with the accommodating space; the upper end face of the annular sealing element is connected with the lower end face of the test box in a sealing mode, and the lower end face of the annular sealing element is connected with the upper end face of the table body in a sealing mode. The vibration test system can enable the equipment to be tested to carry out preset vibration test under the preset environmental condition.
Description
Technical Field
The utility model relates to the technical field of vibration, in particular to a vibration test system.
Background
In practice, some devices are not usually operated under normal temperature and pressure (for example, aerospace devices are usually operated under low pressure or vacuum environment), and when they are operated, they generate vibration, which affects the reliability and service life of the devices, so that during the design and production process, the devices and their related components need to be subjected to vibration test under the corresponding working environment. Therefore, it is an urgent problem to design a device capable of performing a vibration test on the devices.
SUMMERY OF THE UTILITY MODEL
In view of the above, the main objective of the present invention is to provide a vibration testing system.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows: a vibration testing system comprising: the vibration test device comprises a vibration table and a test box positioned above the vibration table, wherein the vibration table comprises a table body and a moving coil which can extend out of the upper end face of the table body, and a closed accommodating space is arranged in the test box; the annular sealing element is vertically arranged and is positioned between the upper end face of the table body and the test box; the movable coil can extend into the inner space of the annular sealing element, and the lower end face of the test box is provided with a through hole for communicating the inner space with the accommodating space; the upper end face of the annular sealing element is connected with the lower end face of the test box in a sealing mode, and the lower end face of the annular sealing element is connected with the upper end face of the table body in a sealing mode.
As an improvement of the embodiment of the present invention, a first annular groove surrounding the moving coil and a first sealing ring located in the first annular groove are arranged on the upper end surface of the table body, the bottom surface and the side surface of the first annular groove are respectively in sealing connection with the first sealing ring, and the upper end surface of the first sealing ring is in sealing connection with the lower end surface of the annular sealing member.
As an improvement of the embodiment of the present invention, a lower end portion of the annular seal member is provided with a through hole that communicates an inner wall and an outer side surface of the annular seal member.
As an improvement of the embodiment of the utility model, the annular sealing element is connected with the table body through bolts.
As an improvement of the embodiment of the utility model, a first annular element is sleeved at the upper end part of the annular sealing element, and a rolling sealing element for isolating the accommodating space from the external environment is installed in a clearance between the first annular element and the annular sealing element in a matching way; the upper end face of the first annular piece is connected with the lower end face of the test box in a sealing mode.
As an improvement of the embodiment of the present invention, a first assembly groove for fixedly connecting a first end of the rolling seal member in a matching manner is formed in a lower end surface of the first ring-shaped member, a second assembly groove for fixedly connecting a second end of the rolling seal member in a matching manner is formed in an outer side surface of the annular seal member, and both the first assembly groove and the second assembly groove are annular grooves.
As an improvement of the embodiment of the present invention, the rolling seal is a sealing membrane with a U-shaped cross section, and an opening of the rolling seal faces downward.
As an improvement of the embodiment of the present invention, the upper end portion of the annular sealing element is sleeved with a second annular element, the second annular element is located below the first annular element, the upper end surface of the second annular element is attached to the lower end surface of the first annular element, and the portion of the rolling sealing element close to the first end is sandwiched between the first and second annular elements.
As an improvement of the embodiment of the utility model, a second annular groove surrounding the annular sealing element and a second sealing ring located in the second annular groove are arranged on the upper end surface of the first annular element, the bottom surface and the side surface of the second annular groove are respectively in sealing connection with the second sealing ring, and the upper end surface of the second sealing ring is in sealing connection with the lower end surface of the test box.
As an improvement of the embodiment of the present invention, a groove with an upward opening is disposed on an upper end surface of the rolling seal member, and two ends of the groove are respectively communicated with an outer side surface and an inner wall of the rolling seal member.
The vibration test system provided by the embodiment of the utility model has the following advantages: the embodiment of the utility model discloses a vibration test system, which comprises: the vibration test device comprises a vibration table and a test box positioned above the vibration table, wherein the vibration table comprises a table body and a moving coil which can extend out of the upper end face of the table body, and a closed accommodating space is arranged in the test box; the annular sealing element is vertically arranged and is positioned between the upper end surface of the table body and the test box; the movable coil can extend into the inner space of the annular sealing element, and the lower end face of the test box is provided with a through hole for communicating the inner space with the accommodating space; the upper end face of the annular sealing element is connected with the lower end face of the test box in a sealing mode, and the lower end face of the annular sealing element is connected with the upper end face of the table body in a sealing mode. The vibration test system can enable the equipment to be tested to carry out preset vibration test under the preset environmental condition.
Drawings
FIG. 1 is a cross-sectional view of a vibration testing system in an embodiment of the present invention;
FIG. 2 is an enlarged view of area A of FIG. 1;
fig. 3, 4, 5 and 6 are perspective views of a central subassembly of the vibration testing system.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. The present invention is not limited to the embodiment, and structural, methodological, or functional changes made by one of ordinary skill in the art according to the embodiment are included in the scope of the present invention.
The following description and the drawings sufficiently illustrate specific embodiments herein to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the embodiments herein includes the full ambit of the claims, as well as all available equivalents of the claims. The terms "first," "second," and the like, herein are used solely to distinguish one element from another without requiring or implying any actual such relationship or order between such elements. In practice, a first element can also be referred to as a second element, and vice versa. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure, apparatus, or device. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a structure, device or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like herein, as used herein, are defined as orientations or positional relationships based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, and indirect connections via intermediary media, where the specific meaning of the terms is understood by those skilled in the art as appropriate.
An embodiment of the present invention provides a vibration testing system, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, including:
the vibration test device comprises a vibration table 1 and a test box 2 positioned above the vibration table 1, wherein the vibration table 1 comprises a table body 11 and a moving coil 12 which can extend out of the upper end face of the table body 11, and a closed accommodating space is arranged in the test box 2; the annular sealing element 3 is vertically arranged, and the annular sealing element 3 is positioned between the upper end face of the table body 11 and the test box 2; the movable coil 12 can extend into the inner space of the annular sealing element 3, and the lower end surface of the test box 2 is provided with a through hole for communicating the inner space with the accommodating space; here, the through hole may be a vertically extending through hole, and a lateral dimension of the through hole may be identical to the inner space;
the upper end face of the annular sealing element 3 is connected with the lower end face of the test box 2 in a sealing mode, and the lower end face of the annular sealing element 3 is connected with the upper end face of the table body 11 in a sealing mode.
Here, the upper and lower end surfaces of the ring seal 3 are hermetically connected to the test chamber 2 and the table body 11, respectively, so that the accommodating space between the ring seal 3 and the vibration table 1 is isolated from the external environment, and thus, the environmental characteristics (e.g., air pressure, moisture concentration, temperature, etc.) of the closed space can be set as desired. When in use, a device to be tested can be placed in the accommodating space, and then the device is fixedly connected to the moving coil 12, so that the device can bear vibration meeting the preset requirement by controlling the vibration table 1; during the vibration test, the moving coil 12 drives the device to be tested into vibration, but the annular seal 3 and the test chamber 2 are almost non-vibrating.
Optionally, a plurality of screw holes and screws may be disposed on the upper end surface of the moving coil 12, and the device to be tested may be fixed based on the screw holes and the screws; or a fixing device is arranged on the upper end face of the moving coil 12, and the fixing device can extend into the accommodating space and can fix the equipment to be tested.
In this embodiment, the upper end surface of the table 11 is provided with a first annular groove 111 surrounding the moving coil 12 and a first sealing ring 112 located in the first annular groove 111, the bottom surface and the side surface of the first annular groove 111 are respectively connected with the first sealing ring 112 in a sealing manner, and the upper end surface of the first sealing ring 112 is connected with the lower end surface of the annular sealing member 3 in a sealing manner. Here, as shown in fig. 2 and 5, the lower end portion of the ring seal 3 is provided with a flange extending inward and a flange extending outward, which can greatly increase the contact area with the upper end surface of the table body 11, and the flange extending outward is provided with a plurality of through holes uniformly, and similarly, the upper end surface of the table body 11 is provided with a plurality of screw holes corresponding one to one, and then bolts are passed through the through holes from top to bottom and then screwed into the screw holes, thereby fixing the ring seal 3 and the table body 11.
In this embodiment, the lower end of the annular sealing member 3 is provided with a through hole 31, and the through hole 31 communicates the inner wall and the outer side surface of the annular sealing member 3. Here, the through hole 31 can exhaust air, water, etc. in the inner space of the ring seal 3, and in actual use, an air pump, etc. may be installed at the through hole 31 for adjusting environmental characteristics in the accommodating space, and the through hole 31 needs to be blocked to separate the accommodating space from the external environment when a test is performed.
In this embodiment, the annular sealing member 3 is bolted to the table body 11.
In this embodiment, the upper end of the annular sealing element 3 is sleeved with a first annular element 32, and a rolling sealing element 33 for isolating the accommodating space from the external environment is installed in a clearance fit between the first annular element 32 and the annular sealing element 3; the upper end face of first ring member 32 is sealingly connected to the lower end face of test chamber 2.
In this embodiment, a first assembling groove 322 for fixedly connecting a first end of the rolling seal element 33 in a matching manner is formed in a lower end surface of the first annular component 32, a second assembling groove 34 for fixedly connecting a second end of the rolling seal element 33 in a matching manner is formed in an outer side surface of the annular seal element 3, and both the first assembling groove and the second assembling groove are annular grooves.
In this embodiment, the rolling seal 33 is a sealing membrane with a U-shaped cross section, and an opening of the rolling seal 33 faces downward. Here, in actual use, since the movable coil 12 vibrates in the vertical direction, the table body 11 also vibrates accordingly, and it is understood that the test chamber 2 does not vibrate substantially because the rolling seal 33 is a seal membrane having a U-shaped cross section.
In this embodiment, the upper end portion of the annular sealing member 3 is sleeved with a second annular member 35, the second annular member 35 is located below the first annular member 32, the upper end surface of the second annular member 35 is attached to the lower end surface of the first annular member 32, and the portion of the rolling sealing member 33 close to the first end is sandwiched between the first and second annular members. Here, the first and second ring members may be connected to each other by bolts.
In this embodiment, the upper end surface of the first annular member 32 is provided with a second annular groove 323 surrounding the annular sealing member 3 and a second sealing ring 324 located in the second annular groove 323, the bottom surface and the side surface of the second annular groove 323 are respectively connected with the second sealing ring 324 in a sealing manner, and the upper end surface of the second sealing ring 324 is connected with the lower end surface of the test chamber 2 in a sealing manner.
In this embodiment, a groove 341 with an upward opening is disposed on an upper end surface of the rolling seal 33, and two ends of the groove 341 are respectively communicated with an outer side surface and an inner wall of the rolling seal 33. Here, in use, there is a possibility that water accumulates on the rolling seal 33 and the like, and then the accumulated water is removed through the groove 341.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. A vibration testing system, comprising:
the vibration test device comprises a vibration table (1) and a test box (2) positioned above the vibration table (1), wherein the vibration table (1) comprises a table body (11) and a moving coil (12) which can extend out of the upper end face of the table body (11), and a closed accommodating space is arranged in the test box (2);
the annular sealing element (3) is vertically arranged, and the annular sealing element (3) is positioned between the upper end face of the table body (11) and the test box (2);
the movable coil (12) can extend into the inner space of the annular sealing element (3), and a through hole for communicating the inner space with the accommodating space is formed in the lower end face of the test box (2);
the upper end face of the annular sealing element (3) is in sealing connection with the lower end face of the test box (2), and the lower end face of the annular sealing element (3) is in sealing connection with the upper end face of the table body (11).
2. The vibration testing system of claim 1, wherein:
the up end of stage body (11) is provided with and encircles first annular groove (111) of movable coil (12) and be located first sealing washer (112) in first annular groove (111), the bottom surface and the side of first annular groove (111) equally divide respectively with first sealing washer (112) sealing connection, the up end of first sealing washer (112) with the lower terminal surface sealing connection of annular seal spare (3).
3. The vibration testing system of claim 2, wherein:
the lower end part of the annular sealing element (3) is provided with a through hole (31), and the through hole (31) is communicated with the inner wall and the outer side surface of the annular sealing element (3).
4. The vibration testing system of claim 2, wherein:
the annular sealing element (3) is connected with the table body (11) through bolts.
5. The vibration testing system of claim 1, wherein:
a first annular piece (32) is sleeved at the upper end part of the annular sealing piece (3), and a rolling sealing piece (33) used for isolating the accommodating space from the external environment is installed in a clearance fit manner between the first annular piece (32) and the annular sealing piece (3);
the upper end face of the first annular piece (32) is connected with the lower end face of the test box (2) in a sealing mode.
6. The vibration testing system of claim 5, wherein:
the lower end face of the first annular piece (32) is provided with a first assembling groove (322) for matching and fixedly connecting the first end of the rolling sealing element (33), the outer side face of the annular sealing element (3) is provided with a second assembling groove (34) for matching and fixedly connecting the second end of the rolling sealing element (33), and the first assembling groove and the second assembling groove are annular grooves.
7. The vibration testing system of claim 6, wherein:
the rolling sealing element (33) is a sealing membrane with a U-shaped cross section, and an opening of the rolling sealing element (33) faces downwards.
8. The vibration testing system of claim 6, wherein:
the upper end of the annular sealing element (3) is sleeved with a second annular element (35), the second annular element (35) is located below the first annular element (32), the upper end face of the second annular element (35) is attached to the lower end face of the first annular element (32), and the part, close to the first end, of the rolling sealing element (33) is clamped between the first annular element and the second annular element.
9. The vibration testing system of claim 5, wherein:
the upper end face of the first annular part (32) is provided with a second annular groove (323) surrounding the annular sealing element (3) and a second sealing ring (324) located in the second annular groove (323), the bottom face and the side face of the second annular groove (323) are respectively in sealing connection with the second sealing ring (324), and the upper end face of the second sealing ring (324) is in sealing connection with the lower end face of the test box (2).
10. The vibration testing system of claim 5, wherein:
the upper end face of the rolling sealing element (33) is provided with a groove (341) with an upward opening, and two ends of the groove (341) are respectively communicated with the outer side face and the inner wall of the rolling sealing element (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122167767.1U CN215952912U (en) | 2021-09-08 | 2021-09-08 | Vibration test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122167767.1U CN215952912U (en) | 2021-09-08 | 2021-09-08 | Vibration test system |
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| Publication Number | Publication Date |
|---|---|
| CN215952912U true CN215952912U (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122167767.1U Active CN215952912U (en) | 2021-09-08 | 2021-09-08 | Vibration test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024087951A1 (en) * | 2022-10-28 | 2024-05-02 | 苏州苏试试验集团股份有限公司 | Inverse vibration composite environmental testing system |
-
2021
- 2021-09-08 CN CN202122167767.1U patent/CN215952912U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024087951A1 (en) * | 2022-10-28 | 2024-05-02 | 苏州苏试试验集团股份有限公司 | Inverse vibration composite environmental testing system |
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