CN208847441U - A kind of low pressure, vibration environment analog machine - Google Patents
A kind of low pressure, vibration environment analog machine Download PDFInfo
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- CN208847441U CN208847441U CN201821893199.5U CN201821893199U CN208847441U CN 208847441 U CN208847441 U CN 208847441U CN 201821893199 U CN201821893199 U CN 201821893199U CN 208847441 U CN208847441 U CN 208847441U
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Abstract
The utility model embodiment discloses a kind of low pressure, vibration environment analog machine, chamber including shake table and setting on a vibration table, outer edge on the bottom surface of the chamber positioned at through-hole is connected with the first connector of annular, the second connector passed through for vibration head is provided on the shake table stage body table top, the rolling seal part for isolation experiment case air pressure inside and ambient pressure is fitted in the gap of first connector and the second connector, make the first connector for coupling rolling seal part and chamber bottom plate, and make the second connector for coupling rolling seal part and shake table stage body.The utility model utilizes rolling seal part, air pressure inside chamber is isolated with ambient pressure, avoid occurring the phenomenon that air pressure is by just pressing to low pressure extruder in experimentation, the moving-coil table top of shake table is set to be in stable working condition, it is ensured that realize the airtight sealing requirement under simulation low pressure, vibration experiment environment.
Description
Technical field
The utility model embodiment is related to environmental simulation experimental technique field, and in particular to a kind of low pressure, vibration environment mould
It proposes standby.
Background technique
Environmental simulation test is to keep functional reliability under the expected all environment for using, transporting or storing
And the activity carried out, it is that product is exposed to under natural or artificial environmental condition its effect that is subjected to, to evaluate product in reality
Border uses, the performance under the environmental condition of transport and storage, and the influence degree and its mechanism of action of research environment factor,
All kinds of amblent air temperatures are wherein simulated by environmental-test facility, transport, carry, vibration, etc. conditions, be enterprise or mechanism pair
Raw material, semi-finished product, final product quality are verified.
The environmental simulation equipment for wherein carrying out vibration verifying to product generallys use shake table, and product to be verified is put into examination
In tryoff, shake table chamber is set to provide vibration simulation environment by shake table and being coupled for chamber, thus to
Whether identification product endures the ability of ambient vibration, and would generally provide low pressure into chamber for demand to simulate
Low pressure, vibration combinational environment, reduce process, save cost.
But due to vibration verifying during, the vibration head of shake table be protrude into the inside of chamber, and in order to ensure
Shake table can work normally, and be usually clearance fit between vibration head and chamber, when providing low pressure into chamber, experiment
It is easy to be pressed against in environment under low pressure because of extraneous positive pressure by gap in the process, the moving-coil table top of shake table is made to be inhaled into examination
Trend in tryoff causes the moving-coil of shake table unstable, to influence the work of shake table.
Utility model content
For this purpose, the utility model embodiment provides a kind of low pressure, vibration environment analog machine, with solve in the prior art by
Extraneous positive pressure is easy the low pressure extruder into chamber and causes in experimentation extraneous positive pressure into chamber in experimentation
The problem of low pressure extruder.
To achieve the goals above, the embodiments of the present invention provides the following technical solutions:
In the embodiments of the present invention, a kind of low pressure, vibration environment analog machine are provided, comprising: shake table
With setting chamber on a vibration table, the shake table includes shake table stage body and the vibration that is arranged on shake table stage body table top
Dynamic head, the bottom of the chamber offers and protrudes into through-hole inside chamber for vibration head, and is between through-hole and vibration head
Clearance fit, it is characterised in that: the outer edge on the bottom surface of the chamber positioned at through-hole is connected with the first connector of annular,
The second connector passed through for vibration head, first connector and the second connector are provided on the shake table stage body table top
Gap in be fitted with rolling seal part for isolation experiment case air pressure inside and ambient pressure.
By using above-mentioned technical proposal, the aperture on the bottom surface of chamber, it is ensured that the vibration head of shake table enters
To inside chamber, cooperate vibration head and the via clearance of chamber bottom surface, wherein shake table selects straight-line oscillation platform, vibration
Platform stage body is the equipment of vibration source to be provided for vibration test, and vibration head is the vibration output par, c of shake table, including be used to shake
The Extension Head that dynamic head extends can be conveniently adjusted vibration head and enter distance inside chamber, carry out low pressure, vibration environment mould
When draft experiment, product to be verified is placed in chamber, and provides a normal atmosphere into chamber and is depressed into 100Pa range
Pressure, since air pressure is easy to pressing to the external world just in chamber by the gap of vibration head and chamber cooperation in experimentation
Low pressure is squeezed, therefore the outer edge on the bottom surface of chamber positioned at through-hole is connected with the first connector of annular, is shaking
It is provided with the second connector passed through for vibration head on dynamic platform stage body table top, and in the gap of the first connector and the second connector
It is inside fitted with rolling seal part, makes the first connector for coupling rolling seal part and chamber bottom plate, wherein first connects
Fitting and chamber bottom plate are to take the rigid attachment for guaranteeing air-tightness processing, and make the second connector for coupling rolling seal
Part and shake table stage body, wherein the second connector and shake table stage body are also the rigid attachment for taking guaranteed air-tightness processing,
So that the air pressure inside chamber to be isolated with ambient pressure, avoid occurring air pressure in experimentation being squeezed by just pressing to low pressure
The phenomenon that pressure, makes the moving-coil table top of shake table be in stable working condition, and since the air pressure inside and outside chamber may phase
Difference is larger, and high-low temperature resistant can be used in rolling seal part, the material of resistance to positive pressure is made, it is ensured that realizes simulation low pressure, vibration experiment ring
Airtight sealing requirement under border.
Further, offered on the outer wall of first connector for the one end fits of rolling seal part it is affixed first
Fitting groove, the other end offered on the outer wall of second connector for rolling seal part cooperate the second affixed fitting groove,
First fitting groove and the second fitting groove are annular groove.
Further, the rolling seal part sealing diaphragm U-shaped for cross section, and the opening direction of rolling seal part
The table top of shake table stage body.
Rolling seal part is set to since air pressure is usually to press to low pressure by positive pressure by using above-mentioned technical proposal
The U-shaped sealing diaphragm in cross section, and make the opening of rolling seal part towards the table top of shake table stage body, utilize rolling seal part
Recess portion contact ambient pressure, can reduce rolling seal part shake table work when stress condition, so that it is guaranteed that roll it is close
The structural strength of sealing,
Further, the table top of the shake table stage body is equipped with one layer of stage body reinforcer, the thickness of the stage body reinforcer
Degree is 13-17mm.
By using above-mentioned technical proposal, one layer of stage body reinforcer is equipped on the table top of shake table stage body, it can be according to reality
The thickness of stage body reinforcer is set 13-17mm by border technical requirements, thickeies table top using stage body reinforcer, guarantees shake table platform
The intensity of body reaches technical requirements, convenient for subsequent parts are fixedly mounted.
Further, the connector for adjusting engagement height is equipped between the stage body reinforcer and the second connector,
The upper wall of the connector is bolted with the second connector, and the lower wall of connector is bolted with stage body reinforcer.
By using above-mentioned technical proposal, it is in order to which more accurately adjustment shake table and chamber bottom surface are logical that connector, which is arranged,
The engagement height in hole can adjust the size of connector according to the actual situation during installation and debugging.
Further, the connector respectively with stage body reinforcer, the second connector binding face in be embedded with silicon rubber
Sealing ring.
By using above-mentioned technical proposal, since connector is connected with stage body reinforcer, the second connector by bolt respectively
Luggage is tapped into match, connector and stage body reinforcer, the second connector binding face between may generate the air gap, therefore
Connector and stage body reinforcer, the second connector binding face in be embedded with silicone rubber O-ring respectively, make ambient pressure not
It can be squeezed into chamber by the air gap between assembly parts, thus more effectively ensure the air-tightness between assembly parts,
Improve the overall performance of equipment.
Further, the floor-side reinforcement of annular is embedded on the bottom surface of the chamber positioned at the outer edge of through-hole.
By using above-mentioned technical proposal, floor-side reinforcement is embedded on the bottom plate of chamber, it is possible to reduce experimental box
The deformation of bottom plate during the experiment, convenient for the fixing assembling of subsequent parts.
According to the present utility model embodiment there is provided a kind of low pressure, vibration environment analog machine, have following excellent
Point: the outer edge on the bottom surface of chamber positioned at through-hole is connected with the first connector of annular, on shake table stage body table top
It is provided with the second connector passed through for vibration head, and is fitted with rolling in the gap of the first connector and the second connector
Dynamic seal makes the first connector for coupling rolling seal part and chamber bottom plate, and make the second connector for couple rolling
Dynamic seal and shake table stage body avoid in experimentation so that the air pressure inside chamber is isolated with ambient pressure
There is the phenomenon that air pressure is by just pressing to low pressure extruder, the moving-coil table top of shake table is made to be in stable working condition, it is ensured that realizes
Simulate the airtight sealing requirement under low pressure, vibration experiment environment.
Detailed description of the invention
It, below will be to reality in order to illustrate more clearly of the embodiments of the present invention or technical solution in the prior art
It applies mode or attached drawing needed to be used in the description of the prior art is briefly described.It should be evident that attached in being described below
Figure is only exemplary, for those of ordinary skill in the art, without creative efforts, can be with
It is extended according to the attached drawing of offer and obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the utility model enforceable qualifications, therefore does not have technology
On essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the utility model institute energy
Under the effect of generation and the purpose that can reach, it should all still fall in the revealed technology contents of the utility model and obtain the model that can cover
In enclosing.
Fig. 1 is a kind of low pressure provided by the embodiment of the utility model, vibration environment analog machine volume overall structure diagram；
Fig. 2 is the enlarged diagram of A structure in Fig. 1.
In figure: 1, shake table；11, shake table stage body；12, vibration head；13, the second connector；131, the second fitting groove；2,
Chamber；21, through-hole；22, the first connector；221, the first fitting groove；3, rolling seal part；4, stage body reinforcer；5, couple
Part；51, silicone rubber O-ring；6, floor-side reinforcement.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily, it is clear that described embodiment is
The utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the utility model protection
Range.
The term on cited such as "upper", "lower", " left side ", the right side in this specification ", " centre ", is merely convenient to describe
Be illustrated, rather than to limit the enforceable range of the utility model, relativeness is altered or modified, without substantive change
Under technology contents, when being also considered as the enforceable scope of the utility model.
Embodiment 1
As depicted in figs. 1 and 2, the utility model embodiment provides a kind of low pressure, vibration environment analog machine, including vibration
The dynamic chamber 2 platform 1 and be arranged on shake table 1.Shake table 1 includes shake table stage body 11 and is arranged at shake table stage body 11
Vibration head 12 on face, wherein shake table 1 selects straight-line oscillation platform, and shake table stage body 11 is to provide vibration source for vibration test
Equipment, and vibration head 12 is the vibration output par, c of shake table 1 can be in order to including the Extension Head extended for vibration head 12
Vibration head 12 is adjusted into the distance inside chamber 2, when carrying out low pressure, vibration environment simulated experiment, by product to be verified
It is placed in chamber 2, and one normal atmosphere of offer is depressed into the pressure of 100Pa range into chamber 2.At the bottom of chamber 2
Portion, which is offered, protrudes into through-hole 21 inside chamber 2 for vibration head 12, and is in clearance fit between through-hole 21 and vibration head 12,
Outer edge on the bottom surface of chamber 2 positioned at through-hole 21 is connected with the first connector 22 of annular, in 11 table top of shake table stage body
On be provided with the second connector 13 passed through for vibration head 12, and match in the gap of the first connector 22 and the second connector 13
The rolling seal part 3 being equipped with for 2 air pressure inside of isolation experiment case and ambient pressure is closed, wherein the outer wall of the first connector 22
On offer first fitting groove 221 affixed for the one end fits of rolling seal part 3, offered on the outer wall of the second connector 13
Cooperate the second affixed fitting groove 131 for the other end of rolling seal part 3, and the first fitting groove 221 and the second fitting groove 131 are
For annular groove, make the first connection 22 for coupling rolling seal part 3 and 2 bottom plate of chamber, wherein the first connector 22 and examination
2 bottom plate of tryoff be take guarantee air-tightness processing rigid attachment, and make the second connection 13 for couple rolling seal part 3 with
Shake table stage body 11, wherein the second connector 13 is also that the rigidity of guaranteed air-tightness processing is taken to join with shake table stage body 11
It connects, so that the air pressure inside chamber 2 is isolated with ambient pressure, avoids occurring air pressure in experimentation low by just pressing to
The phenomenon that extrusion pressure, the moving-coil table top of shake table 1 is made to be in stable working condition.
As noted previously, as the air pressure inside and outside chamber 2 may differ by it is larger, rolling seal part 3 can be used high-low temperature resistant,
The material of resistance to positive pressure is made, it is ensured that realizes the airtight sealing requirement under simulation low pressure, vibration experiment environment, and rolling seal
Part 3 is the U-shaped sealing diaphragm in cross section, and the opening of rolling seal part 3 utilizes rolling towards the table top of shake table stage body 11
The recess portion of sealing element 3 contacts ambient pressure, can reduce stress condition of the rolling seal part 3 when shake table 1 works, thus really
Protect the structural strength of rolling seal part 3.
The embodiments of the present invention, the outer edge by being located at through-hole 21 on the bottom surface of chamber 2 are connected with ring
First connector 22 of shape, is provided with the second connector 13 passed through for vibration head 12 on 11 table top of shake table stage body, and
It is fitted with rolling seal part 3 in the gap of first connector 22 and the second connector 13, makes the first connector 22 for joining
Rolling seal part 3 and 2 bottom plate of chamber are connect, and makes the second connection 13 to be used to couple rolling seal part 3 and shake table stage body 11,
To which the air pressure inside chamber 2 to be isolated with ambient pressure, avoid occurring air pressure in experimentation by just pressing to low pressure
The phenomenon that extruding, makes the moving-coil table top of shake table 1 be in stable working condition, it is ensured that realizes simulation low pressure, vibration experiment ring
Airtight sealing requirement under border.
Embodiment 2
Difference from Example 1 is, one layer of stage body reinforcer 4 is equipped on the table top of shake table stage body 11, makes the
Two connectors 13 are arranged on stage body reinforcer 4, can be required to set 13- for the thickness of stage body reinforcer 4 according to actual techniques
17mm thickeies table top using stage body reinforcer 4, guarantees that the intensity of shake table stage body 11 reaches technical requirements, convenient for being fixedly mounted
Subsequent parts.The connector 5 for adjusting engagement height, connector 5 are equipped between stage body reinforcer 4 and the second connector 13
Upper wall be bolted with the second connector 13, and the lower wall of connector 5 is bolted with stage body reinforcer 4, passes through connector 5
The engagement height of shake table 1 Yu 2 bottom surface through-hole 11 of chamber can be more accurately adjusted, and can root during installation and debugging
According to the size of actual conditions adjustment connector.
As noted previously, as connector 5 is bolted and is filled with stage body reinforcer 4, the second connector 13 respectively
Match, connector 4 and stage body reinforcer 4, the second connector 13 binding face between may generate the air gap, therefore joining
Fitting 5 respectively with stage body reinforcer 4, the second connector 13 binding face in also be embedded with silicone rubber O-ring 51, make extraneous gas
Pressure will not be squeezed into chamber by the air gap between assembly parts, to more effectively ensure airtight between assembly parts
Property, improve the overall performance of equipment.
Embodiment 3
Difference from Example 1 is, positioned at the outer edge of through-hole 21 embedded with annular on the bottom surface of chamber 2
Floor-side reinforcement 6 can prevent the bottom plate of experimental box 2 being deformed during the experiment, convenient for the fixed dress of subsequent parts
Match.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (7)
1. a kind of low pressure, vibration environment analog machine, the chamber (2) including shake table (1) and setting on shake table (1),
The shake table (1) includes the vibration head (12) of shake table stage body (11) and setting on shake table stage body (11) table top, described
The bottom of chamber (2), which is offered, protrudes into the internal through-hole (21) of chamber (2), and through-hole (21) and vibration for vibration head (12)
It is in clearance fit between head (12), it is characterised in that: the outer edge on the bottom surface of the chamber (2) positioned at through-hole (21) is affixed
There is the first connector (22) of annular, second passed through for vibration head (12) is provided on shake table stage body (11) table top and is connected
It is fitted in the gap of fitting (13), first connector (22) and the second connector (13) for isolation experiment case
(2) the rolling seal part (3) of air pressure inside and ambient pressure.
2. a kind of low pressure according to claim 1, vibration environment analog machine, it is characterised in that: first connector
(22) first fitting groove (221) affixed for the one end fits of rolling seal part (3), second connection are offered on outer wall
The other end for rolling seal part (3) is offered on the outer wall of part (13) cooperates affixed the second fitting groove (131), described first
Fitting groove (221) and the second fitting groove (131) are annular groove.
3. a kind of low pressure according to claim 2, vibration environment analog machine, it is characterised in that: the rolling seal part
It (3) is the U-shaped sealing diaphragm in cross section, and the opening of rolling seal part (3) is towards the table top of shake table stage body (11).
4. a kind of low pressure according to claim 1, vibration environment analog machine, it is characterised in that: the shake table stage body
(11) table top be equipped with one layer of stage body reinforcer (4), the stage body reinforcer (4) with a thickness of 13-17mm.
5. a kind of low pressure according to claim 4, vibration environment analog machine, it is characterised in that: the stage body reinforcer
(4) be equipped with connector (5) for adjusting engagement height between the second connector (13), the upper wall of the connector (5) with
Second connector (13) is bolted, and the lower wall of connector (5) is bolted with stage body reinforcer (4).
6. a kind of low pressure according to claim 5, vibration environment analog machine, it is characterised in that: the connector (5) point
It is not interior embedded with silicone rubber O-ring (51) with the binding face of stage body reinforcer (4), the second connector (13).
7. a kind of low pressure according to claim 1, vibration environment analog machine, it is characterised in that: the chamber (2)
Outer edge on bottom surface positioned at through-hole (21) is embedded with annular floor-side reinforcement (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821893199.5U CN208847441U (en) | 2018-11-16 | 2018-11-16 | A kind of low pressure, vibration environment analog machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821893199.5U CN208847441U (en) | 2018-11-16 | 2018-11-16 | A kind of low pressure, vibration environment analog machine |
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| Publication Number | Publication Date |
|---|---|
| CN208847441U true CN208847441U (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821893199.5U Active CN208847441U (en) | 2018-11-16 | 2018-11-16 | A kind of low pressure, vibration environment analog machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382889A (en) * | 2021-12-16 | 2022-04-22 | 北京航天希尔测试技术有限公司 | Quick mounting structure of four integrated environment sealing systems |
| CN114383797A (en) * | 2021-12-16 | 2022-04-22 | 北京航天希尔测试技术有限公司 | Temperature, humidity, height and vibration integrated environment sealing system |
| 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 |
-
2018
- 2018-11-16 CN CN201821893199.5U patent/CN208847441U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382889A (en) * | 2021-12-16 | 2022-04-22 | 北京航天希尔测试技术有限公司 | Quick mounting structure of four integrated environment sealing systems |
| CN114383797A (en) * | 2021-12-16 | 2022-04-22 | 北京航天希尔测试技术有限公司 | Temperature, humidity, height and vibration integrated environment sealing system |
| CN114383797B (en) * | 2021-12-16 | 2024-04-09 | 北京航天希尔测试技术有限公司 | Four comprehensive environment sealing systems of warm, wet, high and vibration |
| CN114382889B (en) * | 2021-12-16 | 2024-05-17 | 北京航天希尔测试技术有限公司 | Quick mounting structure of four comprehensive environment sealing systems |
| 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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