CN105700455B - A kind of flatness means for correcting and method - Google Patents
A kind of flatness means for correcting and method Download PDFInfo
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- CN105700455B CN105700455B CN201610064932.1A CN201610064932A CN105700455B CN 105700455 B CN105700455 B CN 105700455B CN 201610064932 A CN201610064932 A CN 201610064932A CN 105700455 B CN105700455 B CN 105700455B
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- electric signal
- auxiliary check
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- pressure value
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of flatness means for correcting and method, belong to ship machinery field.Described device includes：Control unit, four testing agencies being separately positioned on the benchmaring point and three auxiliary check points of hoistable platform, benchmaring point is arranged on the auxiliary spud leg of hoistable platform, and three auxiliary check points are separately positioned on three lifting spud legs of hoistable platform；Testing agency includes liquid level gauge and for liquid level gauge to be measured into piezoelectricity converting unit of the pressure value output for electric signal；Control unit, for obtaining the electric signal of four testing agency's output, and the size of the pressure value according to represented by the electric signal that the testing agency of three auxiliary check points exports and the pressure value represented by the electric signal of testing agency's output of benchmaring point, the lifting spud leg where three auxiliary check points is controlled successively, benchmark is used as by the 4th test point for introducing unrelated with the flat surface of 3 points of compositions, avoided with reference to error.
Description
Technical field
The present invention relates to ship machinery field, more particularly to a kind of flatness means for correcting and method.
Background technology
At present, domestic and international platform plane degree correcting mode, 3 points of detection bearing calibrations of generally use are realized.Specifically, it is sharp
The principle of a plane is determined with three test points, selectes three detections respectively on three lifting spud legs of hoistable platform first
Point, the position of one of test point is detected as initial position, the position of other two test points is then detected, passes through detection
The position of other two test points arrived and the relation of initial position, adjusted to lifting spud leg corresponding to other two test points
It is whole, so as to realize that the flatness of hoistable platform corrects.
During the present invention is realized, inventor has found that prior art at least has problems with：
Determining lifting spud leg corresponding to the test point of initial position can not stably ensure that initial position is in course of adjustment can
It can change, cause with reference to error so that entirely the flatness adjustment cycle of platform is long, precision is low.
The content of the invention
In order to solve problem of the prior art, the embodiments of the invention provide a kind of flatness means for correcting and method.Institute
It is as follows to state technical scheme：
On the one hand, the embodiments of the invention provide a kind of flatness means for correcting, described device to include：
Control unit, four be separately positioned on the benchmaring point and three auxiliary check points of hoistable platform inspection
Mechanism is surveyed, the benchmaring point is arranged on the auxiliary spud leg of the hoistable platform, and three auxiliary check points are set respectively
Put on three lifting spud legs of the hoistable platform；
The testing agency includes liquid level gauge and the output of the pressure value for the liquid level gauge to be measured is electric signal
Piezoelectricity converting unit；
Described control unit, for obtaining the electric signal of four testing agencies output, and according to described three auxiliary
The electricity that the testing agency of pressure value and the benchmaring point represented by the electric signal of testing agency's output of test point exports
The size of pressure value represented by signal, the lifting spud leg where three auxiliary check points is controlled successively.
In a kind of implementation of the embodiment of the present invention, the liquid level is calculated as mercury liquid level gauge.
In another implementation of the embodiment of the present invention, the piezoelectricity converting unit includes：
Pressure charging valve, the pressure value for the liquid level gauge to be detected are amplified；
Signal amplifier, electric signal is converted to for the pressure value after the pressure charging valve is amplified, and to the electric signal
It is amplified.
In another implementation of the embodiment of the present invention, described control unit, for periodically to described three
Lifting spud leg where auxiliary check point carries out elevating control：
Within each cycle, the pressure value P 1 represented by the electric signal for the testing agency's output for calculating the auxiliary check point
The difference DELTA P of the pressure value P 0 represented by electric signal exported with the testing agency of the benchmaring point；
When Δ P >=setting value, the power set for lifting spud leg where controlling the auxiliary check point are standby；
When Δ P ＜ setting values, the power set for lifting spud leg where controlling the auxiliary check point are performed to rise and moved
Make, until the Δ P >=setting value.
In another implementation of the embodiment of the present invention, described control unit is defeated for when Δ P >=setting value
Go out a continuous constant solenoid valve control to instruct to the power set.
In another implementation of the embodiment of the present invention, the power set include solenoid-operated proportional reversal valve and system
Actuating unit, described control unit electrically connect with the solenoid-operated proportional reversal valve.
In another implementation of the embodiment of the present invention, described control unit is programmable logic controller (PLC) PLC.
On the other hand, the embodiment of the present invention additionally provides a kind of flatness bearing calibration, and methods described is based on previous aspect
The device of offer realizes that methods described includes：
Obtain the electric signal of four testing agencies output；
Pressure value and the benchmark according to represented by the electric signal of the testing agency of three auxiliary check points output
The size of pressure value represented by the electric signal of testing agency's output of test point, successively to where three auxiliary check points
Lifting spud leg be controlled.
In a kind of implementation of the embodiment of the present invention, the testing agency according to three auxiliary check points is defeated
Pressure value of the pressure value represented by with the electric signal of testing agency's output of the benchmaring point represented by electric signal gone out
Size, the lifting spud leg where three auxiliary check points is controlled successively, including：
Elevating control periodically is carried out to the lifting spud leg where three auxiliary check points：
Within each cycle, the pressure value P 1 represented by the electric signal for the testing agency's output for calculating the auxiliary check point
The difference DELTA P of the pressure value P 0 represented by electric signal exported with the testing agency of the benchmaring point；
When Δ P >=setting value, the power set for lifting spud leg where controlling the auxiliary check point are standby；
When Δ P ＜ setting values, the power set for lifting spud leg where controlling the auxiliary check point are performed to rise and moved
Make, until the Δ P >=setting value.
In another implementation of the embodiment of the present invention, the lifting spud leg where the control auxiliary check point
Power set perform vertical motion, including：
When Δ P >=setting value, export a continuous constant solenoid valve control and instruct to the power set.
In the present embodiment, it is used as benchmark by introducing four test point unrelated with the flat surface of 3 points of compositions, can
To ensure that detection of platform is carried out based on standard sea level all the time, so as to ensure that the abswolute level of platform, avoid with reference to error,
So that the flatness adjustment cycle time of whole platform, precision improve.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of structural representation of flatness means for correcting provided in an embodiment of the present invention；
Fig. 2 is a kind of hoistable platform top cross-sectional view provided in an embodiment of the present invention；
Fig. 3 is a kind of structural representation of testing agency provided in an embodiment of the present invention；
Fig. 4 is a kind of flow chart of flatness bearing calibration provided in an embodiment of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 is the embodiments of the invention provide a kind of structural representation of flatness means for correcting, referring to Fig. 1, the device
Including：
Control unit 11, a benchmaring point 10A for being separately positioned on hoistable platform 10 (referring to Fig. 2) and three auxiliary
Four testing agencies 12 on test point 10B, benchmaring point 10A are arranged on the auxiliary spud leg of hoistable platform 10, and three auxiliary
Test point 10B is helped to be separately positioned on three lifting spud legs of hoistable platform 10.
Referring to Fig. 3, testing agency 12 can include liquid level gauge 121 and the pressure value for liquid level gauge 121 to be measured is defeated
Go out the piezoelectricity converting unit 122 for electric signal.
Control unit 11, the electric signal exported for obtaining four testing agencies 12, and according to three auxiliary check point 10B
The electric signal that exports of testing agency 12 represented by pressure value and benchmaring point 10A the electric signal that exports of testing agency 12
The size of represented pressure value, the lifting spud leg where three auxiliary check point 10B is controlled successively.
In the present embodiment, it is used as benchmark by introducing four test point unrelated with the flat surface of 3 points of compositions, can
To ensure that detection of platform is carried out based on standard sea level all the time, so as to ensure that the abswolute level of platform, avoid with reference to error,
So that the flatness adjustment cycle time of whole platform, precision improve.Further, since benchmaring point is arranged on auxiliary spud leg
On, it can avoid due to error caused by lifting spud leg original position disunity；Meanwhile correct dress compared to current flatness
Put, security and operability are stronger.
In a kind of possible implementation, liquid level gauge 121 can be mercury liquid level gauge 121.Liquid level gauge 121 is used to detect
The position of residing point, and pressure value correspondingly is provided.Because liquid level gauge 121 provides pure liquid-level pressure value, thus not by
Remaining test point influences so that control unit 11 can obtain constant signal source, ensure that the continuous work of equipment, lifting
The ability that face degree means for correcting continuously works.
In a kind of possible implementation, piezoelectricity converting unit 122 includes：
Pressure charging valve 1221, the pressure value for liquid level gauge 121 to be detected are amplified；
Signal amplifier 1222, electric signal is converted to for the pressure value after pressure charging valve 1221 is amplified, and to electric signal
It is amplified.
In embodiments of the present invention, control unit 11, by the signal amplifier in auxiliary check point 10B testing agency 12
The signal of 1222 outputs is carried out with a reference value (being provided by the signal amplifier 1222 in benchmaring point 10A testing agency 12)
Contrast, so as to provide the control instruction of lifting spud leg.The control instruction includes direction, size (being usually a step value) and control
Time, for example, control unit 11 provides a positive control instruction, the solenoid-operated proportional reversal valve of spud leg is lifted in control instruction
Control time in opened with setting aperture (direction of corresponding control instruction and size).When control in place or control time reaches
Then, control unit 11 sends backhaul instruction, and solenoid-operated proportional reversal valve returns middle position.This small precision step motion control mechanism is drawn
With, while elevating control is realized using solenoid-operated proportional reversal valve, improve the control accuracy of stage correction.
In a kind of possible implementation, control unit 11, for periodically to where three auxiliary check point 10B
Lifting spud leg carry out elevating control：
Within each cycle, the pressure value represented by the electric signal for the output of testing agency 12 for calculating auxiliary check point 10B
The difference DELTA P for the pressure value P 0 represented by electric signal that P1 and benchmaring point 10A testing agency 12 exports；
When Δ P >=setting value, the power set for lifting spud leg where controlling auxiliary check point 10B are standby；
When Δ P ＜ setting values, the power set for lifting spud leg where controlling auxiliary check point 10B are performed to rise and moved
Make, until Δ P >=setting value.
In each cycle, three lifting spud legs are controlled successively successively, by some periodic Controls, until Δ P >=
Setting value, complete flatness correction.
Specifically, control unit 11, for when Δ P >=setting value, exporting a continuous constant solenoid valve control
Instruct to power set.
Wherein, the size of constant solenoid valve control instruction can determine according to Δ P absolute value, for example, Δ P's is absolute
Value is bigger, and solenoid valve control instruction is bigger.But within each cycle, solenoid valve control instruction size is constant.
Wherein, setting value can be chosen according to being actually needed, and preferably 0, i.e., as P1 >=P0, control auxiliary check point
The power set of lifting spud leg where 10B are standby；As P1 ＜ P0, vertical motion is performed.
In embodiments of the present invention, climbing very slowly due to lifting spud leg, for example climb within 1 minute 100 millimeters, so
The flatness that can accurately realize hoistable platform using aforesaid way corrects.
In above-mentioned trimming process, power set only carry out vertical motion, without down maneuver, avoid electric in power set
Magnetic proportional reversing valve needs the reverse caused system perturbations in down maneuver.
Further, since when being controlled again to power set in the present invention, a reference value, Bu Huishou are used as using benchmaring point
To external environmental interference, control is realized simple.
In above-mentioned implementation, when performing standby, it can be realized by setting error amount between P0 and P1, such as
" as P1 >=P0, the power set for lifting spud leg where controlling auxiliary check point 10B are standby ", can be further defined to,
When P1 >=P0 and P1 and P0 absolute value differences are less than setting value, the dynamic of spud leg is lifted where control auxiliary check point 10B
Power apparatus is standby.
In embodiments of the present invention, power set 100 can include solenoid-operated proportional reversal valve 1001 and system dynamic mechanism
1002, control unit 11 electrically connects with solenoid-operated proportional reversal valve 1001.Wherein, solenoid-operated proportional reversal valve 1001, risen for controlling
The rising and decline of spud leg are dropped；System dynamic mechanism 1002, for providing operation power.
In embodiments of the present invention, control unit 11 can be programmable logic controller (PLC) PLC.
Fig. 4 is a kind of flow chart of flatness bearing calibration provided in an embodiment of the present invention, and this method is provided based on Fig. 1-3
Device realize, referring to Fig. 4, this method includes：
Step 201：Obtain the electric signal of four testing agency's output.
Step 202：The pressure value and benchmark represented by electric signal exported according to the testing agency of three auxiliary check points
The size of pressure value represented by the electric signal of testing agency's output of test point, successively to the liter where three auxiliary check points
Drop spud leg is controlled.
In a kind of possible implementation, step 202 includes：
Elevating control periodically is carried out to the lifting spud leg where three auxiliary check point 10B：
Within each cycle, the pressure value represented by the electric signal for the output of testing agency 12 for calculating auxiliary check point 10B
The difference DELTA P for the pressure value P 0 represented by electric signal that P1 and benchmaring point 10A testing agency 12 exports；
When Δ P >=setting value, the power set for lifting spud leg where controlling auxiliary check point 10B are standby；
When Δ P ＜ setting values, the power set for lifting spud leg where controlling auxiliary check point 10B are performed to rise and moved
Make, until Δ P >=setting value.
Wherein, the power set for lifting spud leg where controlling auxiliary check point perform vertical motion, including：
When Δ P >=setting value, export a continuous constant solenoid valve control and instruct to power set.
Wherein, setting value is preferably 0, i.e., as P1 >=P0, controls the power for the lifting spud leg dress where auxiliary check point
Put standby；As P1 ＜ P0, vertical motion is performed.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
1. a kind of flatness means for correcting, it is characterised in that described device includes：
Control unit, four detection machines being separately positioned on the benchmaring point and three auxiliary check points of hoistable platform
Structure, the benchmaring point are arranged on the auxiliary spud leg of the hoistable platform, and three auxiliary check points are separately positioned on
On three lifting spud legs of the hoistable platform；
The testing agency includes the piezoelectricity of liquid level gauge and the output of the pressure value for the liquid level gauge to be measured for electric signal
Converting unit；
Described control unit, detected for obtaining the electric signal of four testing agencies output, and according to described three auxiliary
The electric signal that the testing agency of pressure value and the benchmaring point represented by the electric signal of testing agency's output of point exports
The size of represented pressure value, the lifting spud leg where three auxiliary check points is controlled successively.
2. device according to claim 1, it is characterised in that the liquid level is calculated as mercury liquid level gauge.
3. device according to claim 1, it is characterised in that the piezoelectricity converting unit includes：
Pressure charging valve, the pressure value for the liquid level gauge to be detected are amplified；
Signal amplifier, electric signal is converted to for the pressure value after the pressure charging valve is amplified, and the electric signal is carried out
Amplification.
4. device according to claim 1, it is characterised in that described control unit, for periodically to described three
Lifting spud leg where auxiliary check point carries out elevating control：
Within each cycle, pressure value P 1 and institute represented by the electric signal for the testing agency's output for calculating the auxiliary check point
State the difference DELTA P of the pressure value P 0 represented by the electric signal of testing agency's output of benchmaring point；
When Δ P >=setting value, the power set for lifting spud leg where controlling the auxiliary check point are standby；
When Δ P ＜ setting values, the power set for lifting spud leg where controlling the auxiliary check point perform vertical motion, directly
To the Δ P >=setting value.
5. device according to claim 4, it is characterised in that described control unit, it is defeated for when Δ P >=setting value
Go out a continuous constant solenoid valve control to instruct to the power set.
6. the device according to claim 4 or 5, it is characterised in that the power set include solenoid-operated proportional reversal valve and
System dynamic mechanism, described control unit electrically connect with the solenoid-operated proportional reversal valve.
7. the device according to claim 4 or 5, it is characterised in that described control unit is programmable logic controller (PLC)
PLC。
8. a kind of flatness bearing calibration, methods described is realized based on the device that claim 1 provides, it is characterised in that described
Method includes：
Obtain the electric signal of four testing agencies output；
Pressure value and the benchmaring according to represented by the electric signal of the testing agency of three auxiliary check points output
The size of pressure value represented by the electric signal of testing agency's output of point, successively to the liter where three auxiliary check points
Drop spud leg is controlled.
9. according to the method for claim 8, it is characterised in that the testing agency according to three auxiliary check points
The pressure represented by electric signal that the testing agency of pressure value and the benchmaring point represented by the electric signal of output exports
The size of value, the lifting spud leg where three auxiliary check points is controlled successively, including：
Elevating control periodically is carried out to the lifting spud leg where three auxiliary check points：
Within each cycle, pressure value P 1 and institute represented by the electric signal for the testing agency's output for calculating the auxiliary check point
State the difference DELTA P of the pressure value P 0 represented by the electric signal of testing agency's output of benchmaring point；
When Δ P >=setting value, the power set for lifting spud leg where controlling the auxiliary check point are standby；
When Δ P ＜ setting values, the power set for lifting spud leg where controlling the auxiliary check point perform vertical motion, directly
To the Δ P >=setting value.
10. according to the method for claim 9, it is characterised in that the lifting pole where the control auxiliary check point
The power set of leg perform vertical motion, including：
When Δ P >=setting value, export a continuous constant solenoid valve control and instruct to the power set.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610064932.1A CN105700455B (en) | 2016-01-29 | 2016-01-29 | A kind of flatness means for correcting and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610064932.1A CN105700455B (en) | 2016-01-29 | 2016-01-29 | A kind of flatness means for correcting and method |
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| CN105700455A CN105700455A (en) | 2016-06-22 |
| CN105700455B true CN105700455B (en) | 2018-03-30 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201645657U (en) * | 2010-03-24 | 2010-11-24 | 福建南方路面机械有限公司 | Four-point automatic control hydraulic leveling system for asphalt mortar mixer truck |
| CN102174794A (en) * | 2011-03-07 | 2011-09-07 | 江苏科技大学 | Automatic leveling system and method for six-point support bridging platform |
| CN102303590A (en) * | 2011-06-28 | 2012-01-04 | 陈海波 | Three-point supporting judgment and adjustment system for launch vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6848693B2 (en) * | 2001-11-20 | 2005-02-01 | Actuant Corporation | Pseudo four-leg vehicle leveling system with independent leg lock-out |
-
2016
- 2016-01-29 CN CN201610064932.1A patent/CN105700455B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201645657U (en) * | 2010-03-24 | 2010-11-24 | 福建南方路面机械有限公司 | Four-point automatic control hydraulic leveling system for asphalt mortar mixer truck |
| CN102174794A (en) * | 2011-03-07 | 2011-09-07 | 江苏科技大学 | Automatic leveling system and method for six-point support bridging platform |
| CN102303590A (en) * | 2011-06-28 | 2012-01-04 | 陈海波 | Three-point supporting judgment and adjustment system for launch vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 重型平板车液压自动精确调平控制策略研究;阳方义;《中国优秀硕士学位论文全文数据库（电子期刊）工程科技II辑》;20131215(第S2期);全文 * |
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