CN110594350B - Height and levelness adjusting method for floating platform - Google Patents
Height and levelness adjusting method for floating platform Download PDFInfo
- Publication number
- CN110594350B CN110594350B CN201910847862.0A CN201910847862A CN110594350B CN 110594350 B CN110594350 B CN 110594350B CN 201910847862 A CN201910847862 A CN 201910847862A CN 110594350 B CN110594350 B CN 110594350B
- Authority
- CN
- China
- Prior art keywords
- floating platform
- height
- valve
- connecting port
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/027—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means comprising control arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
A method for adjusting the height and levelness of a floating platform comprises the steps of arranging corresponding displacement sensors, connecting the displacement sensors with a control system, setting the height of the floating platform in the control system, controlling the compression amount of an air spring through a horizontal adjusting valve, and controlling the height of the air spring through a height control valve. According to the invention, the air spring is used as the support of the floating platform, so that the vibration isolation effect is effectively improved; the air springs are ensured to be at the same horizontal position by controlling the air inlet and the air outlet of the air springs, so that the height of the floating platform is ensured; according to the principle of determining the plane by three points, the height of the air spring is adjusted, and the horizontal precision of the floating platform is guaranteed, so that the test work on the floating platform is guaranteed to be smoothly carried out.
Description
Technical Field
The invention belongs to the field of floating platforms, and particularly relates to a height and levelness adjusting method for a floating platform.
Background
At present, most of high-dynamic low-frequency floating platforms have the problems of poor vibration isolation effect and inaccurate test result in the test process, and the main reason for causing the large error of the test result is the poor stability of the floating platform, so that the traditional floating platform is difficult to ensure the horizontal precision of the test plane and cannot perform stable floating adjustment on the height.
Therefore, a method for adjusting the height and levelness of a floating platform has been invented to solve the above problems.
Disclosure of Invention
To overcome the above-mentioned deficiencies in the prior art, the present invention provides a method for adjusting the height and levelness of a floating platform.
In order to achieve the above objects and other related objects, the present invention provides the following technical solutions: a method for adjusting the height and levelness of a floating platform comprises a control system, wherein a plurality of supporting pieces are arranged below the floating platform, air springs are arranged on the supporting pieces, and horizontal adjusting valves are arranged on the air springs;
the horizontal regulating valve comprises a valve body, a first cavity is arranged in the middle of the valve body, a main valve core is arranged in the first cavity, a valve cover is arranged at the lower end of the valve body, a second cavity is arranged in the middle of the valve cover, a control valve core is arranged in the second cavity, the first cavity is communicated with the second cavity, the interior of the control valve core is communicated with the first cavity and the second cavity, the lower end of the control valve core protrudes out of the lower end of the valve cover in a static state, and the upper end of the control valve core is arranged in the first cavity;
a first connecting port is arranged at one end of the valve body, a second connecting port is arranged at the other end of the valve body, the first connecting port and the second connecting port are both communicated with the first cavity, and the first connecting port is higher than the second connecting port; a third connecting port is formed in one end of the valve cover and communicated with the second cavity;
when the valve body rises, the main valve core, the control valve core and the valve body generate relative displacement, the main valve core props against the first connecting port, and the second connecting port is communicated with the third connecting port;
when the valve body descends, the main valve core, the control valve core and the valve body generate relative displacement, the control valve core props against the second connecting port, and the first connecting port is communicated with the third connecting port;
the height control method of the floating platform comprises the following steps:
the method comprises the following steps: firstly, arranging corresponding displacement sensors around a floating platform, connecting the displacement sensors with a control system, and setting the height of the floating platform in the control system;
step two: the air spring is connected with the third connecting port of the horizontal regulating valve, the first connecting port of the horizontal regulating valve is connected with an air pump, the upper and lower positions of a valve body and a valve cover of the horizontal regulating valve are controlled by the compression amount of the air spring when the horizontal regulating valve is installed, and the air pump is connected with a control system;
step three: arranging a height adjusting valve for the air spring, and connecting the height adjusting valve with a control system;
step four: when the floating platform descends to a height lower than the set height, the control system controls the air pump to inflate, the inflation is stopped when the height of the floating platform is higher than the set height, the air spring exhausts air through the second connecting port of the horizontal adjusting valve, and when the floating platform descends to a height lower than the set height again, the air pump continues to inflate the air spring to keep dynamic balance, so that the compression amount of the air spring is controlled, all the air springs are ensured to be at the same horizontal position, and the floating platform is ensured to be maintained at the set height all the time;
step five: the air springs below the floating platform are divided into three groups, and the height of the air springs is adjusted through a height adjusting valve, so that the levelness of the floating platform is guaranteed.
The preferable technical scheme is as follows: the floating platform is characterized in that the vertical section of the floating platform is T-shaped, and the supporting pieces are uniformly distributed into two rows and are respectively supported on two sides of the floating platform.
The preferable technical scheme is as follows: the number of the height adjusting valves is at least three, and each height control valve controls one or more air springs.
The preferable technical scheme is as follows: a separation blade is arranged between the valve body and the valve cover, the upper end of the control valve core penetrates through the separation blade, and a first spring is arranged between the control valve core and the separation blade.
Due to the application of the technical scheme, compared with the prior art, the invention has the advantages that:
according to the invention, the air spring is used as the support of the floating platform, so that the vibration isolation effect is effectively improved; the air springs are ensured to be at the same horizontal position by controlling the air inlet and the air outlet of the air springs, so that the height of the floating platform is ensured; according to the principle of determining the plane by three points, the height of the air spring is adjusted, and the horizontal precision of the floating platform is guaranteed, so that the test work on the floating platform is guaranteed to be smoothly carried out.
Drawings
FIG. 1 is a schematic flow chart of the conditioning method of the present invention.
FIG. 2 is a schematic sectional view (exhaust state) of the present invention.
Fig. 3 is a schematic sectional view (in an inflated state) of the present invention.
In the above figures, the valve body 1, the main valve element 2, the valve cover 3, the control valve element 4, the first connecting port 5, the second connecting port 6, the third connecting port 7, the baffle 8 and the first spring 9.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 3. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Example (b): as shown in fig. 2 and 3, a method for adjusting the height and levelness of a floating platform comprises a control system, wherein a plurality of supporting pieces are arranged below the floating platform, air springs are arranged on the supporting pieces, and horizontal adjusting valves are arranged on the air springs; the horizontal regulating valve comprises a valve body 1, a first cavity is arranged in the middle of the valve body 1, a main valve element 2 is arranged in the first cavity, a valve cover 3 is arranged at the lower end of the valve body 1, a second cavity is arranged in the middle of the valve cover 3, a control valve element 4 is arranged in the second cavity, the first cavity is communicated with the second cavity, the inner part of the control valve element 4 is communicated with the first cavity and the second cavity, the lower end of the control valve element 4 protrudes out of the lower end of the valve cover 3 in a static state, and the upper end of the control valve element 4 is arranged in the first cavity; one end of the valve body 1 is provided with a first connecting port 5, the other end of the valve body 1 is provided with a second connecting port 6, the first connecting port 5 and the second connecting port 6 are both communicated with the first cavity, and the first connecting port 5 is higher than the second connecting port 6; one end of the valve cover 3 is provided with a third connecting port 7, and the third connecting port 7 is communicated with the second cavity; when the valve body 1 rises, the main valve core 2, the control valve core 4 and the valve body 1 generate relative displacement, the main valve core 2 props against the first connecting port 5, and the second connecting port 6 is communicated with the third connecting port 7; when the valve body 1 descends, the main valve core 2, the control valve core 4 and the valve body 1 generate relative displacement, the control valve core 4 props against the second connecting port 6, and the first connecting port 5 is communicated with the third connecting port 7. A baffle sheet 8 is arranged between the valve body 1 and the valve cover 3, the upper end of the control valve core 4 penetrates through the baffle sheet 8, and a first spring 9 is arranged between the control valve core 4 and the baffle sheet 8.
The regulation principle of the horizontal regulation valve is as follows: as shown in fig. 2 and 3, the lower end of the valve core 4 is exposed out of the lower end of the horizontal regulating valve and contacts the ground; the first connecting port 5 is connected with an air pump, the third connecting port 7 is connected with an air spring, and the second connecting port 6 is used for exhausting air; a plurality of air springs are arranged below the supporting platform, when the air springs inflate, the valve body 1 moves upwards to cause the relative displacement between the valve body 1 and the valve core (the valve core comprises a main valve core 2 and a control valve core 4), and after the valve body 1 rises to a certain degree, the main valve core 2 blocks a first connecting port 5 (air inlet), so that the air springs are ensured not to continue to inflate and are maintained at a set height; at the moment, the third connecting port 7 (an inflation port) is communicated with the second connecting port 6 (an exhaust port), the air spring is subjected to the pressure of a supported platform to exhaust air through the second connecting port 6, in the exhaust process, the valve body 1 descends, the valve body 1 and the valve core generate relative displacement (equivalent to the ascending of the valve core), after the valve body 1 descends to a certain degree, the second connecting port 6 (the exhaust port) is blocked by the control valve core 4, the first connecting port 5 (an air inlet) is exposed and the air spring is inflated through the third connecting port 7 (the inflation port), so that the air spring is inflated and deflated repeatedly in a circulating mode, certain dynamic balance is kept, and all the air springs are kept at.
The height control method of the floating platform comprises the following steps:
the method comprises the following steps: firstly, arranging corresponding displacement sensors around a floating platform, connecting the displacement sensors with a control system, and setting the height of the floating platform in the control system; the displacement sensor can adopt a grating ruler and the like.
Step two: connecting the air spring with a third connecting port of the horizontal regulating valve, connecting a first connecting port of the horizontal regulating valve with an air pump, controlling the upper and lower positions of a valve body and a valve cover of the horizontal regulating valve by the compression amount of the air spring when the horizontal regulating valve is installed, and connecting the air pump with a control system;
step three: arranging a height adjusting valve for the air spring, and connecting the height adjusting valve with a control system; the number of height adjustment valves may be three, with each height control valve controlling one or more air springs.
Step four: when the floating platform is lowered to be lower than the set height, the control system controls the air pump to inflate, the inflation is stopped when the height of the floating platform is higher than the set height, the air spring exhausts air through the second connecting port of the horizontal adjusting valve, and when the floating platform is lowered to be lower than the set height again, the air pump continues to inflate the air spring to keep dynamic balance, so that the compression amount of the air spring is controlled, all the air springs are ensured to be at the same horizontal position, and the floating platform is ensured to be maintained at the set height all the time; because of the difference of the load size, the floating platform will also have different compression amount to the air spring, which will result in the rising and falling of the platform, at this time, in the height control system, because the rising and falling make the valve core and the valve body have relative displacement, which results in the inflation or deflation of the pneumatic circuit, thereby controlling the compression amount of the air spring and maintaining the platform at the set height.
Step five: the air springs below the floating platform are divided into three groups, and the height of the air springs is adjusted through a height adjusting valve, so that the levelness of the floating platform is guaranteed. The principle of determining a plane by three points is adopted to ensure the levelness of the floating platform.
The preferred embodiment is: the vertical section of the floating platform is T-shaped, and the supporting pieces are uniformly distributed into two rows and are respectively supported on two sides of the floating platform. The stress uniformity is ensured, the structure stability is ensured, and the horizontal precision is improved.
According to the invention, the air spring is used as the support of the floating platform, so that the vibration isolation effect is effectively improved; the air springs are ensured to be at the same horizontal position by controlling the air inlet and the air outlet of the air springs, so that the height of the floating platform is ensured; according to the principle of determining the plane by three points, the height of the air spring is adjusted, and the horizontal precision of the floating platform is guaranteed, so that the test work on the floating platform is guaranteed to be smoothly carried out.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (4)
1. A method for adjusting the height and levelness of a floating platform comprises a control system, and is characterized in that: a plurality of supporting pieces are arranged below the floating platform, air springs are arranged on the supporting pieces, and horizontal adjusting valves are arranged on the air springs;
the horizontal regulating valve comprises a valve body, a first cavity is arranged in the middle of the valve body, a main valve core is arranged in the first cavity, a valve cover is arranged at the lower end of the valve body, a second cavity is arranged in the middle of the valve cover, a control valve core is arranged in the second cavity, the first cavity is communicated with the second cavity, the interior of the control valve core is communicated with the first cavity and the second cavity, the lower end of the control valve core protrudes out of the lower end of the valve cover in a static state, and the upper end of the control valve core is arranged in the first cavity;
a first connecting port is arranged at one end of the valve body, a second connecting port is arranged at the other end of the valve body, the first connecting port and the second connecting port are both communicated with the first cavity, and the first connecting port is higher than the second connecting port; a third connecting port is formed in one end of the valve cover and communicated with the second cavity;
when the valve body rises, the main valve core, the control valve core and the valve body generate relative displacement, the main valve core props against the first connecting port, and the second connecting port is communicated with the third connecting port;
when the valve body descends, the main valve core, the control valve core and the valve body generate relative displacement, the control valve core props against the second connecting port, and the first connecting port is communicated with the third connecting port;
the height control method of the floating platform comprises the following steps:
the method comprises the following steps: firstly, arranging corresponding displacement sensors around a floating platform, connecting the displacement sensors with a control system, and setting the height of the floating platform in the control system;
step two: the air spring is connected with the third connecting port of the horizontal regulating valve, the first connecting port of the horizontal regulating valve is connected with an air pump, the upper and lower positions of a valve body and a valve cover of the horizontal regulating valve are controlled by the compression amount of the air spring when the horizontal regulating valve is installed, and the air pump is connected with a control system;
step three: arranging a height adjusting valve for the air spring, and connecting the height adjusting valve with a control system;
step four: when the floating platform descends to a height lower than the set height, the control system controls the air pump to inflate, the inflation is stopped when the height of the floating platform is higher than the set height, the air spring exhausts air through the second connecting port of the horizontal adjusting valve, and when the floating platform descends to a height lower than the set height again, the air pump continues to inflate the air spring to keep dynamic balance, so that the compression amount of the air spring is controlled, all the air springs are ensured to be at the same horizontal position, and the floating platform is ensured to be maintained at the set height all the time;
step five: the air springs below the floating platform are divided into three groups, and the height of the air springs is adjusted through a height adjusting valve, so that the levelness of the floating platform is guaranteed.
2. The method of claim 1, wherein the method comprises the steps of: the floating platform is characterized in that the vertical section of the floating platform is T-shaped, and the supporting pieces are uniformly distributed into two rows and are respectively supported on two sides of the floating platform.
3. The method of claim 1, wherein the method comprises the steps of: the number of the height adjusting valves is at least three, and each height control valve controls one or more air springs.
4. The method of claim 1, wherein the method comprises the steps of: a separation blade is arranged between the valve body and the valve cover, the upper end of the control valve core penetrates through the separation blade, and a first spring is arranged between the control valve core and the separation blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910847862.0A CN110594350B (en) | 2019-09-09 | 2019-09-09 | Height and levelness adjusting method for floating platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910847862.0A CN110594350B (en) | 2019-09-09 | 2019-09-09 | Height and levelness adjusting method for floating platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110594350A CN110594350A (en) | 2019-12-20 |
| CN110594350B true CN110594350B (en) | 2021-02-02 |
Family
ID=68858079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910847862.0A Active CN110594350B (en) | 2019-09-09 | 2019-09-09 | Height and levelness adjusting method for floating platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110594350B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007247785A (en) * | 2006-03-16 | 2007-09-27 | Nippon Thermostat Co Ltd | Hot water flow preventing valve |
| CN102518734A (en) * | 2012-01-09 | 2012-06-27 | 中国铁道科学研究院机车车辆研究所 | Air spring pressure control device applied to rail transit vehicle and control method for air spring pressure control device |
| CN207145706U (en) * | 2017-06-13 | 2018-03-27 | 北京艾迪西暖通科技有限公司 | Adjustable dynamic balance valve |
| CN108105540B (en) * | 2017-11-13 | 2020-06-12 | 惠州市鸿业电力信息科技有限公司 | Movable electric power construction infrared monitoring device |
| CN108036019B (en) * | 2017-11-27 | 2020-02-14 | 中国电子工程设计院 | Height leveling control system and method for air spring vibration isolation platform |
| JP3216607U (en) * | 2018-03-30 | 2018-06-07 | 浩 倉林 | Air floating vibration control system |
| CN208169625U (en) * | 2018-05-02 | 2018-11-30 | 缙云县盛达缝制设备有限公司 | A kind of once through steam generator pressure-control valve |
| CN109015756B (en) * | 2018-08-27 | 2019-06-04 | 东北大学 | A kind of series connection mechanical arm repetitive positioning accuracy reliability test and method |
| CN209112163U (en) * | 2018-10-07 | 2019-07-16 | 李彦波 | Novel variable pressure valve and its power-assisted relay valve constituted with relay valve |
-
2019
- 2019-09-09 CN CN201910847862.0A patent/CN110594350B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110594350A (en) | 2019-12-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3281101A (en) | Levelable load mount | |
| US4172506A (en) | Fluid bearing | |
| CN108036019B (en) | Height leveling control system and method for air spring vibration isolation platform | |
| CN110594350B (en) | Height and levelness adjusting method for floating platform | |
| WO2000003627A3 (en) | Electronic control system for a variable support mechanism | |
| CN101609263A (en) | Photo-etching machine silicon chip platform mobile device and adopt the litho machine of this mobile device | |
| CN104763820B (en) | Two-position three-way valve and vibration isolation system with same | |
| CN102150092B (en) | Pressure controller component and pressure pad system | |
| CN104948641A (en) | Automatic height adjustment valve of optical vibration isolation platform | |
| CN207548165U (en) | A kind of numerical control machining center damping base | |
| CN210975910U (en) | Floating vibration isolation foundation for high dynamic fatigue test | |
| CN203176652U (en) | Self-leveling type air spring vibration isolation table | |
| CN105257758B (en) | A kind of control method of variable auxiliary chamber air spring constructions | |
| CN113585470A (en) | Jacking device positioning method for complex curved surface modeling space construction | |
| JP7055390B2 (en) | An air seismic isolation leveling valve device and a seismic isolation device provided with the air seismic isolation leveling valve device. | |
| CN211009999U (en) | High-precision air spring horizontal regulating valve | |
| CN114658705B (en) | Rocket supporting platform and rocket pose adjusting method | |
| CN205350182U (en) | Variable appended gas chamber air spring structure | |
| CN109732959B (en) | Method and system for forming tire under constant pressure control of middle drum of forming machine | |
| CN108868119A (en) | A kind of flexible building template | |
| CN113879475A (en) | Dynamic ballast adjusting device and method for offshore wind power generation platform | |
| CN204514338U (en) | A kind of optical detection plummer of levelling | |
| CN210128017U (en) | Multistage air supporting plate device | |
| CN208654747U (en) | Three air bag VR pneumatic tables | |
| CN219008330U (en) | Mask flattening device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |