CN109540443B - Multi-axial gas circuit conversion system and method of vibration auxiliary supporting device - Google Patents
Multi-axial gas circuit conversion system and method of vibration auxiliary supporting device Download PDFInfo
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- CN109540443B CN109540443B CN201811512976.1A CN201811512976A CN109540443B CN 109540443 B CN109540443 B CN 109540443B CN 201811512976 A CN201811512976 A CN 201811512976A CN 109540443 B CN109540443 B CN 109540443B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/06—Multidirectional test stands
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Abstract
The invention relates to the field of mechanical engineering, in particular to a multi-axial air path conversion system and a method of a vibration auxiliary supporting device, wherein the air path conversion system comprises a first air path and a second air path which are connected with an air pump, and the first air path is respectively connected to a vibration table air bag and a vertical air bag group and is used for controlling the air path flow between the vibration table air bag and the vertical air bag group; the second air path is respectively connected to the horizontal air bag group and the vertical air bag group and is used for controlling the air path flow between the horizontal air bag group and the vertical air bag group; the first air path and the second air path enable the height of the table top of the vibration table to be in the center position by adjusting air pressure balance among the air bags of the vibration table, the vertical air bag group and the horizontal air bag group. The invention can conveniently and effectively realize the random switching among the air bag of the vibration table, the vertical auxiliary supporting air bag and the horizontal auxiliary supporting air bag, and meet the requirements of heavy-load and high-pressure-bearing products in various complex states on a plurality of axial vibration tests.
Description
Technical Field
The invention relates to the field of mechanical engineering, in particular to a multi-axial gas circuit conversion system and a multi-axial gas circuit conversion method for a vibration auxiliary supporting device.
Background
When multiple axial vibration tests of products with large load and high pressure bearing capacity are carried out, the tests cannot be normally carried out due to the fact that the bearing capacity and the anti-overturning moment of the vibration table and the standard horizontal sliding table are limited, and special air bag type vertical and horizontal supporting devices with large bearing capacity and strong anti-overturning moment and torsion moment need to be additionally designed.
In order to realize the self-balancing function of the designed axial self-balancing devices, the axial self-balancing airbags directly replace the airbags inside the vibration table, so that larger bearing capacity and anti-overturning moment are required to be generated, and higher requirements are provided for connection of the trend of an air supply system of the vibration table and an air path, therefore, a set of air path conversion scheme is required to be designed so as to meet the multi-axial switching requirement of the vibration auxiliary supporting device.
Disclosure of Invention
In order to solve the technical problems, the multi-axial gas circuit conversion system and the method for the vibration auxiliary supporting device provided by the invention realize the random switching of the gas bag inside the vibration table and the plurality of axial self-balancing gas bags, so that the table top height of the vibration table is always kept at the central position in the test process.
The invention provides a multi-axial air path conversion system of a vibration auxiliary supporting device, which comprises a first air path and a second air path connected with an air pump,
the first air path is respectively connected to the vibration table air bag and the vertical air bag group and is used for controlling the air path flow between the vibration table air bag and the vertical air bag group;
the second air path is respectively connected to the horizontal air bag group and the vertical air bag group and is used for controlling the air path flow between the horizontal air bag group and the vertical air bag group;
the first air path and the second air path enable the height of the table top of the vibration table to be in the center position by adjusting air pressure balance among the air bags of the vibration table, the vertical air bag group and the horizontal air bag group.
Specifically, the first air path comprises a first air source interface, an automatic centering device and a vertical control switch, and air flowing out of the air pump flows into the air bag of the vibration table or the vertical air bag group after sequentially passing through the first air source interface, the automatic centering device and the vertical control switch.
Specifically, the vertical control switch switches among ventilation for the air bag of the vibration table, ventilation for the vertical air bag group and a closed state.
Specifically, the automatic centering device is connected with a position sensor in the vibration table.
Specifically, the second air path comprises a second air source interface, a pressure reducing valve and a horizontal control switch, and air flowing out of the air pump flows into the horizontal air bag group or the vertical air bag group after sequentially passing through the second air source interface, the pressure reducing valve and the horizontal control switch.
Specifically, a one-way valve is arranged on an air path of the horizontal control switch connected to the vertical air bag group.
Specifically, the horizontal control switch switches between a state of ventilating the horizontal air bag group, a state of ventilating the vertical air bag group, and a closed state.
The invention also provides a multi-axial gas path conversion method of the vibration auxiliary supporting device, which specifically comprises the following steps:
A. the first air source interface, the automatic centering device and the vertical control switch are sequentially connected to form a first air path, so that air flowing out of the air pump controls the vertical air path of the vibration auxiliary supporting device to flow through the first air path;
B. a second air source interface, a pressure reducing valve and a horizontal control switch are sequentially connected to form a second air path, so that air flowing out of the air pump controls the horizontal air path of the vibration auxiliary supporting device to flow through the second air path;
C. the height of the table top of the vibration table is positioned at the central position by adjusting the vertical air path flow and the horizontal air path flow of the vibration auxiliary supporting device.
Specifically, the step a specifically includes the following steps:
A1. closing the second air passage to enable the air flowing out of the air pump to flow through the first air passage;
A2. the gas flows into the vertical control switch through the first gas source interface and the automatic centering device;
A3. switching a vertical control switch to make the gas flow into the air bag or the vertical air bag group of the vibrating table;
A4. the automatic centering device adjusts the pressure of gas entering the vertical air bag group or the air bag of the vibration table, so that the height position of the table top of the vibration table is maintained at the central position.
Specifically, the step B specifically includes the following steps:
B1. closing the first air path to enable the air flowing out of the air pump to flow through the second air path;
B2. the gas flows into the horizontal control switch through the second gas source interface and the pressure reducing valve;
B3. switching a horizontal control switch to enable the gas to flow into the horizontal air bag group or the vertical air bag group;
B4. and adjusting the pressure value at the pressure reducing valve to adjust the pressure of the gas entering the horizontal air bag group or the vertical air bag group, so that the height position of the table top of the vibration table is maintained at the central position.
The multi-axial gas path conversion system and the method of the vibration auxiliary supporting device can conveniently and effectively realize the random switching among the air bag of the vibration table, the vertical auxiliary supporting air bag and the horizontal auxiliary supporting air bag, and can meet the requirements of a plurality of complex-state heavy-load and high-pressure-bearing products on a plurality of axial vibration tests.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic block diagram of a gas path switching system according to the present invention;
FIG. 2 is a schematic flow chart of the gas path switching method of the present invention;
description of reference numerals:
1. the air pump 2, the first air source interface 3, the second air source interface 4, the automatic centering device 5, the pressure reducing valve 6, the vertical control switch 7, the horizontal control switch 8, the vibration table air bag 9, the horizontal air bag group 10, the vertical air bag group 11 and the one-way valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical solution of the present invention will be described in detail below with specific examples. These particular embodiments may be combined with each other below, and details of the same or similar concepts or processes may not be repeated in some embodiments.
The invention provides a multi-axial gas path conversion system and a multi-axial gas path conversion method for a vibration auxiliary supporting device.
As shown in fig. 1, which is a schematic block diagram of a multi-axial air path conversion system of a vibration auxiliary supporting device in the present invention, the air path conversion system in the present invention includes a first air path and a second air path connected to an air pump, the air path is divided into two air paths, i.e., a first air path and a second air path, which travel, and the first air path is connected to a vibration table air bag 8 and a vertical air bag group 10, respectively, and is used for controlling the air path flow between the vibration table air bag 8 and the vertical air bag group 10; the second air path is respectively connected to the horizontal air bag group 9 and the vertical air bag group 10 and is used for controlling the air path flow between the horizontal air bag group 9 and the vertical air bag group 10; the first air path and the second air path enable the height of the table surface of the vibration table to be in the center position by adjusting air pressure balance among the air bags 8 of the vibration table, the horizontal air bag groups 9 and the vertical air bag groups 10.
Specifically, the first air path comprises a first air source interface 2, an automatic centering device 4 and a vertical control switch 6, and the first air path is connected with the vibration table air bag 8 and the vertical air bag group 10 after passing through the first air source interface 2, the automatic centering device 4 and the vertical control switch 6. After the first air path is opened, the air flowing out of the air pump 1 sequentially flows into the vibration table air bag 8 or the vertical air bag group 10 through the first air source interface 2, the automatic centering device 4 and the vertical control switch 6.
The vertical control switch 6 is a manual reversing valve, the vertical control switch 6 can be switched to three positions, the position gears on the two sides respectively correspond to the vibration table air bag 8 and the vertical air bag 10, and the vertical control switch 6 is switched between the states of introducing 8 air into the vibration table air bag, introducing 8 air into the vertical air bag group 10 and closing. When the vertical direction control switch 6 is switched to the vibration table air bag 8, the gas flows into the vibration table air bag 8, when the vertical direction control switch 6 is switched to the vertical air bag group 10, the gas flows into the vertical air bag group 10, and when the vertical direction control switch 6 is switched to the middle position (the position outside the vibration table air bag 8 and the vertical air bag group 10), the gas path is in a closed state.
Wherein, the automatic centering device 4 is connected with a position sensor in the vibration table, so that the automatic centering device 4 can adjust and ensure the height of the vibration table in real time according to the position sensor, and the height of the vibration table is ensured to be maintained at the central position.
The second air path comprises a second air source interface 3, a pressure reducing valve 5 and a horizontal control switch 7, and the second air path is connected with the vertical air bag group 10 and the horizontal air bag group 9 after passing through the second air source interface 3, the pressure reducing valve 5 and the horizontal control switch 7. After the second air path is opened, the air flowing out of the air pump 1 sequentially flows into the horizontal air bag group 9 or the vertical air bag group 10 through the second air source interface 3, the pressure reducing valve 5 and the horizontal control switch 7.
Further, the pressure reducing valve 5 on the second air path can be provided with a pressure gauge, so that the pressure value of the gas flowing through the pressure reducing valve 5 can be adjusted according to the self weight or the pressure value of the test product through the pressure gauge.
In addition, a check valve 11 is installed on the air path connected with the vertical air bag group 10, preferably, the check valve 11 is installed on the air path connected to the vertical air bag group 10 by the horizontal control switch 7, and the check valve 11 can realize one-way flow of air, so that the air cannot flow in the reverse direction.
The horizontal control switch 7 is a manual reversing valve, the horizontal control switch 7 can be switched to three positions, the position gears on two sides respectively correspond to the vertical air bag group 10 and the horizontal air bag group 9, and the horizontal control switch 7 is switched between a state of ventilating the horizontal air bag group 9, a state of ventilating the vertical air bag group 10 and a closed state. When the horizontal control switch 7 is switched to the horizontal air bag group 9, the air flows into the horizontal air bag group 9, when the horizontal control switch 7 is switched to the vertical air bag group 10, the air flows into the vertical air bag group 10 after passing through the one-way valve 11, and when the horizontal control switch 7 is switched to the middle position (the position outside the horizontal air bag group 9 and the vertical air bag group 10), the air path is in a closed state.
The first air source interface 2 and the second air source interface 3 which are respectively arranged on the first air path and the second air path are used for providing stable interfaces for the air paths so that air can flow in conveniently. In addition, the air pipe in the multi-axial air path conversion system of the vibration auxiliary supporting device further comprises a plurality of three-way interfaces and a plurality of pipelines (not shown in the figure) which are arranged at the branches.
The invention also provides a multi-axial gas circuit conversion method for the vibration auxiliary supporting device, referring to fig. 2, fig. 2 is a flow schematic diagram of the multi-axial gas circuit conversion method for the vibration auxiliary supporting device, and the gas circuit conversion method specifically comprises the following steps:
A. the first air source interface 2, the automatic centering device 4 and the vertical control switch 6 are sequentially connected to form a first air path, so that air flowing out of the air pump controls the vertical air path of the vibration auxiliary supporting device to flow through the first air path;
B. a second gas source interface 3, a pressure reducing valve 5 and a horizontal control switch 7 are sequentially connected to form a second gas path, so that gas flowing out of the gas pump controls the horizontal direction gas path of the vibration auxiliary supporting device to flow through the second gas path;
C. the height of the table top of the vibration table is positioned at the central position by adjusting the vertical air path flow and the horizontal air path flow of the vibration auxiliary supporting device.
Specifically, step a is actually the air path flow regulation of the vertical vibration auxiliary supporting device through the first air path, and the step can be further subdivided into the following steps:
A1. closing the second gas path, namely switching the horizontal control switch 7 to the middle position, so that the gas flowing out of the gas pump 1 flows into the first gas path;
A2. the gas flows out of the gas pump 1, passes through the first gas source interface 2 and the automatic centering device 4, and flows into the vertical control switch 6;
A3. the vertical direction control switch 6 is switched, when the vertical direction control switch 6 is switched to the position of the vibration table air bag 8, the air flows into the vibration table air bag 8, and when the vertical direction control switch 6 is switched to the position of the vertical air bag group 10, the air flows into the vertical air bag group 10;
A4. the automatic centering device 4 adjusts the gas pressure entering the vertical air bag group 10 or the air bag 8 of the vibration table in real time according to a position sensor in the vibration table, so that the height position of the table top of the vibration table is always maintained at the central position.
Specifically, step B is actually performing air path flow regulation of the horizontal vibration auxiliary supporting device through the second air path, and this step may be further subdivided into the following steps:
B1. the first air path is closed, namely the vertical control switch 6 is switched to the middle position, so that the air flowing out of the air pump 1 flows through the second air path;
B2. the gas flows out of the gas pump 1, passes through the second gas source interface 3 and the pressure reducing valve 5, and flows into the horizontal control switch 7;
B3. the horizontal control switch 7 is switched, when the horizontal control switch 7 is switched to the horizontal airbag group 9, the gas flows into the horizontal airbag group 9, and when the horizontal control switch 7 is switched to the vertical airbag group 10, the gas flows into the vertical airbag group 10 after passing through the one-way valve 11;
B4. the pressure value at the pressure reducing valve 5 is adjusted, so that the pressure of the gas entering the horizontal air bag group 9 or the vertical air bag group 10 can be manually adjusted, and the height position of the table top of the vibration table is always maintained at the central position.
The multi-axial gas path conversion system and method of the vibration auxiliary supporting device can conveniently and effectively realize the random switching among the air bag of the vibration table, the air bag of the vertical auxiliary supporting device and the air bag of the horizontal auxiliary supporting device, and meet the vibration test requirements of a plurality of complex-state heavy-load and high-pressure-bearing products in a plurality of axial vibration tests.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications and substitutions do not depart from the spirit and scope of the present invention as defined by the appended claims.
Claims (5)
1. A multi-axial gas path conversion system of a vibration auxiliary supporting device is characterized in that the gas path conversion system comprises a first gas path and a second gas path which are connected with a gas pump,
the first air path is respectively connected to the vibration table air bag and the vertical air bag group and is used for controlling the air path flow between the vibration table air bag and the vertical air bag group;
the second air path is respectively connected to the horizontal air bag group and the vertical air bag group and is used for controlling the air path flow between the horizontal air bag group and the vertical air bag group;
the first air path and the second air path enable the table top of the vibration table to be in the center position by adjusting air pressure balance among the air bag of the vibration table, the vertical air bag group and the horizontal air bag group; the first air path comprises a first air source interface, an automatic centering device and a vertical control switch, and air flowing out of the air pump flows into the air bag of the vibration table or the vertical air bag group after sequentially passing through the first air source interface, the automatic centering device and the vertical control switch; the vertical control switch switches among ventilation to the air bag of the vibration table, ventilation to the vertical air bag group and a closed state; the automatic centering device is connected with a position sensor in the vibration table; the second air path comprises a second air source interface, a pressure reducing valve and a horizontal control switch, and air flowing out of the air pump flows into the horizontal air bag group or the vertical air bag group after sequentially passing through the second air source interface, the pressure reducing valve and the horizontal control switch.
2. The system of claim 1, wherein a one-way valve is disposed on the air path connecting the horizontal control switch to the vertical air cell set.
3. The system of claim 1, wherein the horizontal control switch switches between the closed state and the open state.
4. A multi-axial gas path switching method of a vibration-assisted supporting device, which uses the multi-axial gas path switching system of the vibration-assisted supporting device as claimed in any one of claims 1 to 3, wherein the gas path switching method specifically comprises:
A. the first air source interface, the automatic centering device and the vertical control switch are sequentially connected to form a first air path, so that air flowing out of the air pump controls the vertical air path of the vibration auxiliary supporting device to flow through the first air path;
B. a second air source interface, a pressure reducing valve and a horizontal control switch are sequentially connected to form a second air path, so that air flowing out of the air pump controls the horizontal air path of the vibration auxiliary supporting device to flow through the second air path;
C. the table top height of the vibration table is positioned at the central position by adjusting the vertical air path flow and the horizontal air path flow of the vibration auxiliary supporting device; the step A specifically comprises the following steps:
A1. closing the second air passage to enable the air flowing out of the air pump to flow through the first air passage;
A2. the gas flows into the vertical control switch through the first gas source interface and the automatic centering device;
A3. switching a vertical control switch to make the gas flow into the air bag or the vertical air bag group of the vibrating table;
A4. the automatic centering device adjusts the pressure of gas entering the vertical air bag group or the air bag of the vibration table, so that the height position of the table top of the vibration table is maintained at the central position.
5. The method for converting the multi-axial air path of the vibration-assisted supporting device according to claim 4, wherein the step B specifically comprises the following steps:
B1. closing the first air path to enable the air flowing out of the air pump to flow through the second air path;
B2. the gas flows into the horizontal control switch through the second gas source interface and the pressure reducing valve;
B3. switching a horizontal control switch to enable the gas to flow into the horizontal air bag group or the vertical air bag group;
B4. and adjusting the pressure value at the pressure reducing valve to adjust the pressure of the gas entering the horizontal air bag group or the vertical air bag group, so that the height position of the table top of the vibration table is maintained at the central position.
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| CN201811512976.1A CN109540443B (en) | 2018-12-11 | 2018-12-11 | Multi-axial gas circuit conversion system and method of vibration auxiliary supporting device |
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| CN113267306A (en) * | 2021-06-22 | 2021-08-17 | 苏州苏试试验集团股份有限公司 | Bidirectional bearing and supporting device for vibration table and vibration table |
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| CN101256109B (en) * | 2008-03-24 | 2010-08-18 | 苏州东菱振动试验仪器有限公司 | Controller for oscillation center of electric vibration table with barometrial compensation control |
| CN101408473B (en) * | 2008-11-20 | 2010-08-18 | 苏州苏试试验仪器有限公司 | Method and apparatus for keeping low pressure and vibration composite testing vibration table surface center |
| CN201594143U (en) * | 2010-01-28 | 2010-09-29 | 中国石油天然气集团公司 | Upper moving coil type electromagnetic controllable earthquake focus vibrator |
| US9638602B2 (en) * | 2015-04-09 | 2017-05-02 | Raytheon Company | Vibration test methodology using an electromagnet and related apparatus and automated testing system with material handling robot |
| CN204746853U (en) * | 2015-07-21 | 2015-11-11 | 中国石油集团渤海石油装备制造有限公司 | Shale shaker gas circuit operating means |
| CN106218846B (en) * | 2016-08-02 | 2018-08-14 | 上海海事大学 | A kind of ship air bag vibration isolation device height regulation and control system and its method |
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