CN104229672A - Automatic correction control system and automatic correction control method of mobile car lifting jack - Google Patents
Automatic correction control system and automatic correction control method of mobile car lifting jack Download PDFInfo
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- CN104229672A CN104229672A CN201410472130.5A CN201410472130A CN104229672A CN 104229672 A CN104229672 A CN 104229672A CN 201410472130 A CN201410472130 A CN 201410472130A CN 104229672 A CN104229672 A CN 104229672A
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Abstract
The invention relates to an automatic correction control system and an automatic correction control method of a mobile car lifting jack. The method comprises the steps of using a master station PLC (programmable logic controller) to receive the height values of lifting mechanisms sent by substation PLCs in real time; working out the maximum value and the minimum value in the real-time height values; when the lifting mechanisms make ascending motion, using the master station PLC to suspend the motion of the lifting mechanisms, having the height differences with the minimum value being greater than or equal to a first preset difference value, by the substation PLCs; when the lifting mechanisms make descending motion, using the master station PLC to suspend the motion of the lifting mechanisms having the height differences with the maximum value being greater than or equal to a second preset difference value by the substation PLCs; when the height difference is reduced to a third preset difference value, using the master station PLC to recover the working states of the suspended lifting mechanisms by the substation PLCs. In the running process, the system and the method are used for comparing the height values of the lifting mechanisms in real time, and the synchronization accuracy of the height differences of all the lifting mechanisms can be enabled to be within the set height difference by controlling the lifting mechanisms with rapid speed, so that the efficiency of lifting and dropping a car can be improved, and a railway vehicle frame is safe and reliable in the car lifting and dropping movement process.
Description
Technical field
The present invention relates to car lifting J-Horner control technology field, particularly relate to a kind of mobile car lifter automatic deviation correction control method and system.
Background technology
Car lifting J-Horner as guideway vehicle face repair, a kind of accessory equipment of overhaul, if occur when it uses safety misadventure, particularly guideway vehicle frame, fall the operation of car efficiency time overturning, the damage of guideway vehicle and the injures and deaths of personnel must be caused.Therefore, the design of car lifting J-Horner should meet the lifting requirement of guideway vehicle when keeping in repair, and possesses lifting synchro control again, transfinite the function of safety protection such as auto-stop warning, emergency engine kill.Wherein, realize lifting synchro control to consider as the most important thing.
Current most car lifting J-Horner in synchronization lifting process when diff-H reaches 12mm, system auto-stop.Now operating personal manually need adjust the height of each lifting mechanism according to the height value of operator's station display, raises or reduced by high lifting mechanism by low lifting mechanism.After diff-H adjustment is eliminated, then carry out synchronous lifting operation.
Summary of the invention
The object of the invention is to propose a kind of mobile car lifter automatic deviation correction control method and system, do not need to carry out loaded down with trivial details artificial adjustment, in operational process, automatic height adjustment is poor, ensure each lifting mechanism rising or decline process in diff-H synchronization accuracy within setting height difference, not only increase frame, fall car efficiency, the safety and stability that ensure that guideway vehicle frame simultaneously, fall in car motion process.
For reaching this object, the present invention by the following technical solutions:
A kind of mobile car lifter automatic deviation correction control method, comprising:
The height value of the lifting mechanism that main website PLC real-time reception substation PLC sends;
Obtain the maxima and minima in real-time height value;
When lifting mechanism does upward movement, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the first preset difference value by substation PLC with minimum value diff-H;
When lifting mechanism does descending motion, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the second preset difference value by substation PLC with maxim diff-H;
When diff-H is contracted to the 3rd preset difference value, main website PLC recovers the mode of operation of the lifting mechanism be suspended by substation PLC.
Wherein, before the height value of the lifting mechanism that described main website PLC real-time reception substation PLC sends, also comprise:
Substation PLC obtains the elevation information of lifting mechanism by height detecting device;
Substation PLC processes the elevation information obtained, and draws the actual height value of lifting mechanism, and passes to main website PLC by fieldbus.
Wherein, described when lifting mechanism does upward movement, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the first preset difference value by substation PLC with minimum value diff-H, comprising:
When lifting mechanism does upward movement, the height value of each lifting mechanism is compared with minimum value;
If when the diff-H of the height value of lifting mechanism and minimum value is more than or equal to the first preset difference value, main website PLC then sends pause command and is more than or equal to the substation PLC of the lifting mechanism of the first preset difference value to minimum value diff-H;
Described substation PLC, according to the order received, controls the drive system stop motion being more than or equal to the lifting mechanism of the first preset difference value with minimum value diff-H;
Described when lifting mechanism does descending motion, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the second preset difference value by substation PLC with maxim diff-H, comprising:
When lifting mechanism does descending motion, the height value of each lifting mechanism is compared with maxim;
If when the diff-H of the height value of lifting mechanism and maxim is more than or equal to the second preset difference value, main website PLC then sends pause command and is more than or equal to the substation PLC of the lifting mechanism of the second preset difference value to maxim diff-H;
Described substation PLC, according to the order received, controls the drive system stop motion being more than or equal to the lifting mechanism of the second preset difference value with maxim diff-H.
Wherein, described first preset difference value is 4mm, and described second preset difference value is 4mm, and described 3rd preset difference value is 1mm.
Wherein, the number of described substation PLC is 6, and each described substation PLC comprises 4 lifting mechanisms.
A kind of mobile car lifter automatic error correction control system, comprising: substation PLC and main website PLC;
Described substation PLC, the height value for the lifting mechanism reality by acquisition passes to main website PLC, and controls lifting mechanism according to the control command of main website PLC;
Described main website PLC, for the height value of the lifting mechanism that real-time reception substation PLC sends, obtains the maxima and minima in real-time height value; And for sending the control command of lifting mechanism to substation PLC;
Wherein, when lifting mechanism does upward movement, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the first preset difference value by substation PLC with minimum value diff-H;
When lifting mechanism does descending motion, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the second preset difference value by substation PLC with maxim diff-H;
When diff-H is contracted to the 3rd preset difference value, main website PLC recovers the mode of operation of the lifting mechanism be suspended by substation PLC.
Wherein, height detecting device and drive system is also comprised;
Described height detecting device, for obtaining the elevation information of lifting mechanism to substation PLC; Substation PLC processes the elevation information obtained, and draws the height value of lifting mechanism reality, and passes to main website PLC by fieldbus;
Described drive system, for performing the control command of the lifting mechanism that main website PLC sends to substation PLC.
Wherein, described height detecting device adopts proximity switch and code-disc, and described drive system adopts the control form of contactless switch.
Wherein, described first preset difference value is 4mm, and described second preset difference value is 4mm, and described 3rd preset difference value is 1mm.
Wherein, the number of described substation PLC is 6, and each described substation PLC comprises 4 lifting mechanisms.
Beneficial effect:
A kind of mobile car lifter automatic deviation correction control method of the present invention, main website PLC is sent to obtained the height value of the lifting mechanism that it controls by each substation PLC after, main website PLC carries out analyzing and processing to the height value of multiple lifting mechanism, when doing upward movement, main website PLC is by comparing the height value of each lifting mechanism with height minima, if the height value of lifting mechanism and the difference of minimum value are more than or equal to the first preset difference value arbitrarily, then suspend by substation PLC the lifting mechanism that its lifting mechanism height value and minimum difference be more than or equal to the first preset difference value to move, same, when doing descending motion, main website PLC is by comparing the height value of each lifting mechanism with height maxima, if arbitrarily the height value of lifting mechanism and the difference of maxim are more than or equal to the second preset difference value, then suspend by substation PLC the lifting mechanism that its lifting mechanism height value and maxim difference be more than or equal to the second preset difference value and move, when diff-H until between lifting mechanism is contracted to the 3rd preset difference value, then the mode of operation being recovered the lifting mechanism be suspended by substation PLC restarts operation by it.Visible, technical solutions according to the invention do not need to carry out loaded down with trivial details artificial adjustment, in operational process, automatic height adjustment is poor, ensure each lifting mechanism rising or decline process in diff-H synchronization accuracy within setting height difference, not only increase frame, fall car efficiency, the safety and stability that ensure that guideway vehicle frame simultaneously, fall in car motion process.
Accompanying drawing explanation
Fig. 1 is the diagram of circuit of a kind of mobile car lifter automatic deviation correction control method that the specific embodiment of the invention provides.
Fig. 2 is the structural representation of a kind of mobile car lifter automatic error correction control system that the specific embodiment of the invention provides.
Detailed description of the invention
Technical scheme of the present invention is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
Embodiment 1: Fig. 1 is the diagram of circuit of a kind of mobile car lifter automatic deviation correction control method that the specific embodiment of the invention provides.As shown in Figure 1, a kind of mobile car lifter automatic deviation correction control method of the present invention, comprising:
The height value of the lifting mechanism that main website PLC real-time reception substation PLC sends;
Obtain the maxima and minima in real-time height value;
When lifting mechanism does upward movement, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the first preset difference value by substation PLC with minimum value diff-H;
When lifting mechanism does descending motion, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the second preset difference value by substation PLC with maxim diff-H;
When diff-H is contracted to the 3rd preset difference value, main website PLC recovers the mode of operation of the lifting mechanism be suspended by substation PLC.
First, main website PLC is sent to obtained the height value of the lifting mechanism that it controls by each substation PLC after, main website PLC carries out analyzing and processing to the height value of multiple lifting mechanism, when doing upward movement, main website PLC is by comparing the height value of each lifting mechanism with height minima, if arbitrarily the height value of lifting mechanism and the difference of minimum value are more than or equal to the first preset difference value, then suspend by substation PLC the lifting mechanism that its lifting mechanism height value and minimum difference be more than or equal to the first preset difference value and move; Same, when doing descending motion, main website PLC is by comparing the height value of each lifting mechanism with height maxima, if arbitrarily the height value of lifting mechanism and the difference of maxim are more than or equal to the second preset difference value, then suspend by substation PLC the lifting mechanism that its lifting mechanism height value and maxim difference be more than or equal to the second preset difference value and move; When diff-H until between lifting mechanism is contracted to the 3rd preset difference value, then the mode of operation being recovered the lifting mechanism be suspended by substation PLC restarts operation by it.Visible, technical solutions according to the invention do not need to carry out loaded down with trivial details artificial adjustment, the height value of lifting mechanism is compared in real time in operational process, by time-out and the startup of the drive system of the fast lifting mechanism of control rate, realize the diff-H of adjustment lifting mechanism automatically, reach correction object, guarantee each lifting mechanism rising or decline process in diff-H synchronization accuracy within setting height difference, not only increase frame, fall car efficiency, the safety and stability that ensure that guideway vehicle frame simultaneously, fall in car motion process.
Before the height value of the lifting mechanism that described main website PLC real-time reception substation PLC sends, also comprise:
Substation PLC obtains the elevation information of lifting mechanism by height detecting device;
Substation PLC processes the elevation information obtained, and draws the actual height value of lifting mechanism, and passes to main website PLC by fieldbus.The height detecting device that the present invention includes main website PLC, substation PLC and be connected with substation PLC, wherein, substation PLC is responsible for controlling multiple lifting mechanism, and each lifting mechanism is all configured with height detecting device.First, substation PLC obtains the elevation information of lifting mechanism by height detecting device; Substation PLC processes the elevation information obtained, and draws the actual height value of lifting mechanism, and passes to main website PLC by fieldbus.And build whole control system by fieldbus, improve speed of response.
Described when lifting mechanism does upward movement, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the first preset difference value by substation PLC with minimum value diff-H, comprising:
When lifting mechanism does upward movement, the height value of each lifting mechanism is compared with minimum value;
If when the diff-H of the height value of lifting mechanism and minimum value is more than or equal to the first preset difference value, main website PLC then sends pause command and is more than or equal to the substation PLC of the lifting mechanism of the first preset difference value to minimum value diff-H;
Described substation PLC, according to the order received, controls the drive system stop motion being more than or equal to the lifting mechanism of the first preset difference value with minimum value diff-H.
Described when lifting mechanism does descending motion, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the second preset difference value by substation PLC with maxim diff-H, comprising:
When lifting mechanism does descending motion, the height value of each lifting mechanism is compared with maxim;
If when the diff-H of the height value of lifting mechanism and maxim is more than or equal to the second preset difference value, main website PLC then sends pause command and is more than or equal to the substation PLC of the lifting mechanism of the second preset difference value to maxim diff-H;
Described substation PLC, according to the order received, controls the drive system stop motion being more than or equal to the lifting mechanism of the second preset difference value with maxim diff-H.
It should be noted that, no matter lifting mechanism does upward movement simultaneously, or descending motion simultaneously, in operational process, this programme is by suspending the operation of the drive system of fireballing lifting mechanism, when diff-H is contracted to default third high degree difference, make the above-mentioned lifting mechanism startup optimization being in time-out reach the object of the diff-H of adjustment lifting mechanism in real time again, equipment is operated steadily reliably.
Preferably, described first preset difference value is 4mm, and described second preset difference value is 4mm, and described 3rd preset difference value is 1mm.When the diff-H of lifting mechanism reach even be greater than 4mm time, main website PLC waits for by stopping the drive system action of fireballing lifting mechanism, reach each lifting mechanism rising or decline process in diff-H synchronization accuracy within 4mm diff-H, not only increase frame, fall car efficiency, the safety and stability that ensure that guideway vehicle frame simultaneously, fall in car motion process.When diff-H is reduced to 1mm, recover the action of the lifting mechanism drive system be suspended.
Preferably, the number of described substation PLC is 6, and each described substation PLC comprises 4 lifting mechanisms.Namely each described substation PLC gathers the elevation information of 4 lifting mechanisms controlled, and send to main website PLC after carrying out calculation process, main website PLC obtains the height value of 24 lifting mechanisms.It should be noted that, the number that the present invention is not only applicable to described substation PLC is 6, and each described substation PLC comprises the mobile car lifter system of 4 lifting mechanisms; Also the number being applicable to substation PLC is 9,12 even the mobile car lifter system of other quantity.Can according to the number of substation PLC of the joint number comformability change mobile car lifter system of guideway vehicle and the number of lifting mechanism.
Be below the system embodiment of the embodiment of the present invention, embodiment of the method for the present invention, system embodiment belong to same design, the detail content of not detailed description in system embodiment, can with reference to said method embodiment.
Embodiment 2: Fig. 2 is the structural representation of a kind of mobile car lifter automatic error correction control system that the specific embodiment of the invention provides.As shown in Figure 2, a kind of mobile car lifter automatic error correction control system of the present invention, comprising: substation PLC and main website PLC;
Described substation PLC, the height value for the lifting mechanism reality by acquisition passes to main website PLC, and controls lifting mechanism according to the control command of main website PLC;
Described main website PLC, for the height value of the lifting mechanism that real-time reception substation PLC sends, obtains the maxima and minima in real-time height value; And for sending the control command of lifting mechanism to substation PLC;
Wherein, when lifting mechanism does upward movement, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the first preset difference value by substation PLC with minimum value diff-H;
When lifting mechanism does descending motion, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the second preset difference value by substation PLC with maxim diff-H;
When diff-H is contracted to the 3rd preset difference value, main website PLC recovers the mode of operation of the lifting mechanism be suspended by substation PLC.
Visible, automatic error correction control system of the present invention does not need to carry out loaded down with trivial details artificial adjustment, the height value of lifting mechanism is compared in real time in operational process, the diff-H of adjustment lifting mechanism is automatically realized by the break-make of the drive system of the fast lifting mechanism of control rate, reach correction object, guarantee each lifting mechanism rising or decline process in diff-H synchronization accuracy within setting height difference, not only increase frame, fall car efficiency, the safety and stability that ensure that guideway vehicle frame simultaneously, fall in car motion process.
Also comprise height detecting device and drive system;
Described height detecting device, for obtaining the elevation information of lifting mechanism to substation PLC; Substation PLC processes the elevation information obtained, and draws the height value of lifting mechanism reality, and passes to main website PLC by fieldbus;
Described drive system, for performing the control command of the lifting mechanism that main website PLC sends to substation PLC.
Preferably, described height detecting device adopts proximity switch and code-disc, described substation PLC control proximity switch and code-disc gather the elevation information of each lifting mechanism, count up during rising, counting is subtracted during decline, obtain actual height value after the PLC computing of substation, then pass to main website PLC by fieldbus.
Preferably, described drive system adopts the control form of contactless switch.Main website PLC is the control algorithm center of whole system, by the data that fieldbus and PLC connection handling substation, substation gather, data processed result sends to substation PLC, the break-make that substation PLC is used for real-time control contactor according to data processed result controls asynchronous dynamo operation, thus the diff-H of adjustment lifting mechanism, reach the object of correction.
Preferably, described first preset difference value is 4mm, and described second preset difference value is 4mm, and described 3rd preset difference value is 1mm.
Preferably, the number of described substation PLC is 6, and each described substation PLC comprises 4 lifting mechanisms.
In sum, the present invention builds whole control system by fieldbus, improves speed of response.Operational process compares the height value of lifting mechanism in real time simultaneously, by the diff-H of the break-make adjustment lifting mechanism of the contactless switch of the fireballing lifting mechanism of controlling run, ensure diff-H synchronization accuracy≤4mm in lifting mechanism synchronization lifting process, equipment is operated steadily reliably.Whole scan round periodic Control is at Millisecond, and whole system is controlled by contactless switch simultaneously, and structure is simple, and cost performance is high.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. a mobile car lifter automatic deviation correction control method, is characterized in that, comprising:
The height value of the lifting mechanism that main website PLC real-time reception substation PLC sends;
Obtain the maxima and minima in real-time height value;
When lifting mechanism does upward movement, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the first preset difference value by substation PLC with minimum value diff-H;
When lifting mechanism does descending motion, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the second preset difference value by substation PLC with maxim diff-H;
When diff-H is contracted to the 3rd preset difference value, main website PLC recovers the mode of operation of the lifting mechanism be suspended by substation PLC.
2. a kind of mobile car lifter automatic deviation correction control method according to claim 1, is characterized in that, before the height value of the lifting mechanism that described main website PLC real-time reception substation PLC sends, also comprises:
Substation PLC obtains the elevation information of lifting mechanism by height detecting device;
Substation PLC processes the elevation information obtained, and draws the actual height value of lifting mechanism, and passes to main website PLC by fieldbus.
3. a kind of mobile car lifter automatic deviation correction control method according to claim 1, it is characterized in that, described when lifting mechanism does upward movement, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the first preset difference value by substation PLC with minimum value diff-H, comprising:
When lifting mechanism does upward movement, the height value of each lifting mechanism is compared with minimum value;
If when the diff-H of the height value of lifting mechanism and minimum value is more than or equal to the first preset difference value, main website PLC then sends pause command and is more than or equal to the substation PLC of the lifting mechanism of the first preset difference value to minimum value diff-H;
Described substation PLC, according to the order received, controls the drive system stop motion being more than or equal to the lifting mechanism of the first preset difference value with minimum value diff-H;
Described when lifting mechanism does descending motion, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the second preset difference value by substation PLC with maxim diff-H, comprising:
When lifting mechanism does descending motion, the height value of each lifting mechanism is compared with maxim;
If when the diff-H of the height value of lifting mechanism and maxim is more than or equal to the second preset difference value, main website PLC then sends pause command and is more than or equal to the substation PLC of the lifting mechanism of the second preset difference value to maxim diff-H;
Described substation PLC, according to the order received, controls the drive system stop motion being more than or equal to the lifting mechanism of the second preset difference value with maxim diff-H.
4. a kind of mobile car lifter automatic deviation correction control method according to claim 1, it is characterized in that, described first preset difference value is 4mm, and described second preset difference value is 4mm, and described 3rd preset difference value is 1mm.
5. a kind of mobile car lifter automatic deviation correction control method according to claim 1, is characterized in that, the number of described substation PLC is 6, and each described substation PLC comprises 4 lifting mechanisms.
6. a mobile car lifter automatic error correction control system, is characterized in that, comprising: substation PLC and main website PLC;
Described substation PLC, the height value for the lifting mechanism reality by acquisition passes to main website PLC, and controls lifting mechanism according to the control command of main website PLC;
Described main website PLC, for the height value of the lifting mechanism that real-time reception substation PLC sends, obtains the maxima and minima in real-time height value; And for sending the control command of lifting mechanism to substation PLC;
Wherein, when lifting mechanism does upward movement, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the first preset difference value by substation PLC with minimum value diff-H;
When lifting mechanism does descending motion, main website PLC will be more than or equal to the moving pause of the lifting mechanism of the second preset difference value by substation PLC with maxim diff-H;
When diff-H is contracted to the 3rd preset difference value, main website PLC recovers the mode of operation of the lifting mechanism be suspended by substation PLC.
7. a kind of mobile car lifter automatic error correction control system according to claim 6, is characterized in that, also comprise height detecting device and drive system;
Described height detecting device, for obtaining the elevation information of lifting mechanism to substation PLC; Substation PLC processes the elevation information obtained, and draws the height value of lifting mechanism reality, and passes to main website PLC by fieldbus;
Described drive system, for performing the control command of the lifting mechanism that main website PLC sends to substation PLC.
8. a kind of mobile car lifter automatic error correction control system according to claim 7, is characterized in that, described height detecting device adopts proximity switch and code-disc, and described drive system adopts the control form of contactless switch.
9. a kind of mobile car lifter automatic error correction control system according to claim 6, is characterized in that, described first preset difference value is 4mm, and described second preset difference value is 4mm, and described 3rd preset difference value is 1mm.
10. a kind of mobile car lifter automatic error correction control system according to claim 6, is characterized in that, the number of described substation PLC is 6, and each described substation PLC comprises 4 lifting mechanisms.
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| CN201410472130.5A CN104229672A (en) | 2014-09-16 | 2014-09-16 | Automatic correction control system and automatic correction control method of mobile car lifting jack |
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| CN201410472130.5A CN104229672A (en) | 2014-09-16 | 2014-09-16 | Automatic correction control system and automatic correction control method of mobile car lifting jack |
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| CN105417431A (en) * | 2015-11-24 | 2016-03-23 | 重庆红亿机械有限公司 | Car lifting jack unit synchronous lifting method |
| CN111099525A (en) * | 2019-12-25 | 2020-05-05 | 苏州罗伯特木牛流马物流技术有限公司 | Double portal AGV |
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Application publication date: 20141224 |