CN202099794U - Compacting settlement volume detecting system for dynamic compaction machine - Google Patents
Compacting settlement volume detecting system for dynamic compaction machine Download PDFInfo
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- CN202099794U CN202099794U CN2011201354560U CN201120135456U CN202099794U CN 202099794 U CN202099794 U CN 202099794U CN 2011201354560 U CN2011201354560 U CN 2011201354560U CN 201120135456 U CN201120135456 U CN 201120135456U CN 202099794 U CN202099794 U CN 202099794U
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Abstract
The utility model provides a compacting settlement volume detecting system for a dynamic compaction machine, which is based on the dynamic compaction machine. The compacting settlement volume detecting system comprises a PLC (programmable logic controller), an oil pressure sensor, an encoder and a display, wherein, an input end of the PLC is connected with the oil pressure sensor and the encoder, and an output end of the PLC is connected with the display; the input end of the oil pressure sensor is connected with a hoisting motor, and the output end of the oil pressure sensor is connected with the PLC; the oil pressure sensor transmits a detected pressure value to the PLC; the input end of the encoder is connected with the hoisting motor, and the output end of the encoder is connected with the PLC; the encoder transmits the detected rope reeling length of a wire rope to the PLC; the input end of the display is connected with the PLC; and the dynamic compaction machine displays the compacting settlement volume of single operation through the display. The compacting settlement volume detecting system adopts the PLC, achieves high detection precision and small error, and can be used in various dynamic compaction facilities; in addition, the compacting settlement volume detecting system also has the advantages of high reliability and low price, is convenient to install, and is simple to debug.
Description
Technical field
The present invention relates to technical field of engineering machinery, is a kind of dynamic compaction machinery ramming volume detection system specifically, is used for detecting automatically the ramming volume of dynamic compaction machinery.
Background technology
Dynamic compaction machinery is one of indispensable main equipment in modern construction plant, cut into a mountain fill out the sea, reclaim land from the sea, backfill ground in mountain area obtained using widely in handling.The dynamic compaction machinery course of work is repeatedly the hammer of 80～400KN (the heaviest reach 2000KN) to be lifted by crane 8～25m eminence (the highest reach 40m); Then utilize automatically-unhooked release load or band hammer freely to fall; Form powerful shock wave and heavily stressed on the way, thereby the intensity, reduction compressibilty, the improvement that improve ground are resisted the vibrating liquefaction ability, are eliminated settlement by soaking etc.
It is the key factor that detects the dynamic compaction machinery construction effect that the dynamic compaction machinery ramming volume detects, and GB also has concrete requirement to the compacting degree.But because the numerous domestic dynamic compaction machinery all is to be converted by crawler crane, mostly control mode is hydraulic control, and the dynamic compaction machinery construction quality mainly leans on the constructor to detect, and accuracy of detection is not high and labour intensity is high.The ramming volume detection means is backward relatively, mainly contains following dual mode:
One, manual detection
Manual detection has two kinds of methods:
1, the testing staff gets into tamping pit and detects, and this detection mode wastes time and energy, and detects inaccurate and has certain hazards for the testing staff, and for example the testing staff gets into the tamping pit detection and tamping pit has the danger of landslide;
2, the testing staff moves to checkout equipment by the tamping pit; Detect with equipment such as laser range finder, sound-ranging equipments; Though this detection method precision is higher, the more expensive and each detection of equipment all will move to equipment by the tamping pit, removes again after having surveyed; Detect trouble, labour intensity is big.
Two, Online Transaction Processing
This system through in ramming process, the deflection of strong rammer principal arm jib detected in real time and step signal to programmable logic controller of corresponding output and by programmable logic controller according to this step signal corresponding control ram the depth test unit and carry out depth test.
But this on-line detecting system is too complicated, and principal arm testing agency needs pressure sensor, signal to amplify and shaping circuit, and the depth test unit needs laser depth transducer and signal conditioning circuit; Cost is higher, and the laser depth transducer is installed in the principal arm front end, the installation trouble; Hammer ram falls and impacts bigger to car body; Laser depth transducer application life is shortened in the influence of uncertain factors such as principal arm rocks, wind-force greatly, has increased the error that detects ramming volume.
Summary of the invention
The purpose of this invention is to provide a kind of conveniently, can detect automatically ramming volume, the accuracy of detection that improves ramming volume and the dynamic compaction machinery ramming volume automatic checkout system that uses manpower and material resources sparingly.
The present invention for realizing the technical scheme that above-mentioned purpose adopted is: a kind of dynamic compaction machinery ramming volume detection system is the basis with the dynamic compaction machinery; Native system comprises: programmable controller PLC, oil pressure sensor, encoder and display; Said programmable controller PLC input is connected with encoder with oil pressure sensor, and output is connected with display; Said oil pressure sensor input is connected with hoist motor, and output is connected with programmable controller PLC; Said oil pressure sensor transfers to programmable controller PLC with detected force value; Said encoder input is connected with hoist motor, and output is connected with programmable controller PLC; The receipts rope length that said encoder will detect wire rope transfers to programmable controller PLC; Said display input is connected with programmable controller PLC, and dynamic compaction machinery shows the ramming volume of single operation through display.
This system also comprises buzzer siren, and said buzzer siren is connected with the programmable controller plc communication.
This system also comprises power supply unit, and said power supply unit is this system's power supply.
Advantage of the present invention:
1, the present invention adopts programmable controller PLC and buzzer siren, not only can detect the ramming volume of the each compacting of dynamic compaction machinery automatically, can also when the compacting degree reaches requirement, remind operating personnel, avoids the waste of material resources in man-hour etc.
2, the present invention adopts programmable controller PLC, and its accuracy of detection is high, and error is little, can be used for various strong rammer equipment.
3, the present invention is easy for installation, and debugging is simple, and reliability is high, low price.
Description of drawings
Fig. 1 is a structured flowchart of the present invention;
Fig. 2 is an overall structure sketch map of the present invention;
Fig. 3 is a single ramming volume instrumentation plan of the present invention;
Fig. 4 is the flow chart in the programmable controller PLC of the present invention.
The specific embodiment
Of accompanying drawing Fig. 1-4, a kind of dynamic compaction machinery ramming volume detection system is the basis with the dynamic compaction machinery; Native system comprises: programmable controller PLC1, oil pressure sensor 2, encoder 3 and display 5; Said programmable controller PLC1 input is connected with encoder 3 with oil pressure sensor 2, and output is connected with display 5; Said oil pressure sensor 2 inputs are connected with hoist motor, and output is connected with programmable controller PLC1; Said oil pressure sensor 2 transfers to programmable controller PLC1 with detected force value; Said encoder 3 inputs are connected with hoist motor, and output is connected with programmable controller PLC1; The receipts rope length that said encoder 3 will detect wire rope transfers to programmable controller PLC1; Said display 5 inputs are connected with programmable controller PLC1, and dynamic compaction machinery shows the ramming volume of single operation through display 5.This system also comprises buzzer siren 7, and said buzzer siren 7 is connected with the programmable controller plc communication.This system also comprises power supply unit 4, and said power supply unit 4 is this system's power supply.This system also comprises indicator lamp 6.
Said oil pressure sensor 2 is used for detecting in real time the pressure of hoist motor, and the oil pressure that is installed in hoist motor detects mouth, and real-time detected force value is inputed to programmable logic controller PLC1.
Said encoder 3 is used to detect wire rope and receives rope length, is installed in elevator one end, through CAN bus and programmable logic controller PLC1 communication.Programmable logic controller PLC1 realizes the collection and the processing of data, and accomplishes the calculating of ramming volume, and result of calculation is exported through display 5.Display 5 is used to show the ramming volume of the each operation of dynamic compaction machinery, is connected with programmable logic controller PLC1 communication through the CAN bus.Buzzer siren 7 is used for the ram requirement that reach regulation of alert to setting.
Store the program computing unit in the said programmable controller PLC1;
Its step is following:
The first step is set initial pressure value P
0, said pressure value P
0It is with wire rope tension but the force value of hammer ram required hoist motor oil pressure when also not breaking away from ground;
In second step, set initial ramming volume S
0, initial ramming volume S
0For the compacting degree meets the requirements of ramming volume;
In the 3rd step, said programmable controller PLC1 gathers the pressure value P of hoist motor oil pressure in real time;
The 4th step will be when hammer ram will break away from ground, with pressure value P and setup pressure value P
0Compare, like force value P ≧ P
0The time, the receipts rope length of correspondence when beginning through encoder 3 record hammer rams to the limit, it is following to receive rope length computation formula:
Wherein, it is length that L receives rope length, and N is that n layer wire rope received fake number, D
bBe footpath at the bottom of the reel, n is a n layer wire rope, and k is the wire rope array factor, and d is a wirerope diameter;
Can calculate receipts rope length L for the first time by formula 1
1, repeat said process and can know receipts rope length L for the second time
2,
The 5th goes on foot, and calculates the difference S=L of twice receipts rope length
n-L
N-1Draw ramming volume S one time, and this ramming volume value transmission display 5 is shown in real time;
In the 6th step, repeating step four, five draws ramming volume S next time;
As ramming volume S ≦ S
0The time, buzzer siren 7 sends and reaches ramming volume requirement prompting.
Claims (3)
1. a dynamic compaction machinery ramming volume detection system is the basis with the dynamic compaction machinery, it is characterized in that:
Native system comprises: programmable controller PLC, oil pressure sensor, encoder and display;
Said programmable controller PLC input is connected with encoder with oil pressure sensor, and output is connected with display;
Said oil pressure sensor input is connected with hoist motor, and output is connected with programmable controller PLC; Said oil pressure sensor transfers to programmable controller PLC with detected force value;
Said encoder input is connected with hoist motor, and output is connected with programmable controller PLC; The receipts rope length that said encoder will detect wire rope transfers to programmable controller PLC;
Said display input is connected with programmable controller PLC, and dynamic compaction machinery shows the ramming volume of single operation through display.
2. dynamic compaction machinery ramming volume detection system according to claim 1 is characterized in that:
This system also comprises buzzer siren, and said buzzer siren is connected with the programmable controller plc communication.
3. dynamic compaction machinery ramming volume detection system according to claim 1 is characterized in that:
This system also comprises power supply unit, and said power supply unit is this system's power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201354560U CN202099794U (en) | 2011-05-03 | 2011-05-03 | Compacting settlement volume detecting system for dynamic compaction machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201354560U CN202099794U (en) | 2011-05-03 | 2011-05-03 | Compacting settlement volume detecting system for dynamic compaction machine |
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| Publication Number | Publication Date |
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| CN202099794U true CN202099794U (en) | 2012-01-04 |
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| CN2011201354560U Expired - Fee Related CN202099794U (en) | 2011-05-03 | 2011-05-03 | Compacting settlement volume detecting system for dynamic compaction machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251510A (en) * | 2011-05-03 | 2011-11-23 | 大连理工大学 | Detection system for tamping settlement of heavy tamping machine |
| CN102980548A (en) * | 2012-11-22 | 2013-03-20 | 三一重工股份有限公司 | Dynamic compaction machine, ramming depth measuring method and device of dynamic compaction machine |
| CN103510503A (en) * | 2013-09-30 | 2014-01-15 | 中国地质大学（北京） | Method for monitoring rammed point soil stabilization state vibration in real time |
-
2011
- 2011-05-03 CN CN2011201354560U patent/CN202099794U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251510A (en) * | 2011-05-03 | 2011-11-23 | 大连理工大学 | Detection system for tamping settlement of heavy tamping machine |
| CN102980548A (en) * | 2012-11-22 | 2013-03-20 | 三一重工股份有限公司 | Dynamic compaction machine, ramming depth measuring method and device of dynamic compaction machine |
| CN103510503A (en) * | 2013-09-30 | 2014-01-15 | 中国地质大学（北京） | Method for monitoring rammed point soil stabilization state vibration in real time |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20130503 |