CN203658794U - Numerical control system for automatic tube pile tensioning machine - Google Patents
Numerical control system for automatic tube pile tensioning machine Download PDFInfo
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- CN203658794U CN203658794U CN201320864824.4U CN201320864824U CN203658794U CN 203658794 U CN203658794 U CN 203658794U CN 201320864824 U CN201320864824 U CN 201320864824U CN 203658794 U CN203658794 U CN 203658794U
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 32
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000001276 controlling effect Effects 0.000 abstract description 6
- 239000010720 hydraulic oil Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010729 system oil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model relates to a numerical control system for an automatic tube pile tensioning machine, which comprises a jack, a hydraulic system and a circuit control system, wherein a tensioning piston capable of storing hydraulic oil is arranged inside the jack; the circuit control system comprises a central controller, a pressure sensor for detecting the tensioning force of the tensing piston on the jack, and a pressure transmitter for detecting oil pressure of an oil transmission pipeline on the hydraulic system; detection signals of the pressure sensor are inputted to the central controller via a first analog to digital converter; detection signals of the pressure transmitter are inputted to the central controller via a second analog to digital converter; the oil path of the hydraulic system is provided with a proportional speed regulating valve for controlling the oil path flow; the output end of the central controller is connected with a digital to analog converter; the digital to analog converter is amplified via a proportional amplifier and drives the proportional speed regulating valve for realizing regulation of oil path oil pressure of the hydraulic system. The utility model aims at providing a numerical control system for an automatic tube pile tensioning machine which is simple in structure, convenient in operation and high-precision and intelligent in prestress tensioning control.
Description
Technical field
The utility model relates to a kind of pile tube numerical control automatic Tensioning machine, particularly a kind of digital control system of pile tube automatic Tensioning machine.
Background technology
Along with the development of concrete technology, the technology of concrete tubular pile also reaches its maturity, and except being applied to industry, covil construction, is also widely used in the every field such as bridge, harbour, railway or hydraulic engineering.
Concrete tubular pile is produced to be needed through tension process, and this is a requisite ring in pile for prestressed pipe production line.In traditional tension process, labor strength is large, and the probability of placing oneself in the midst of dangerous matter sources is large, and inefficiency, cannot meet the need of market.
Find that through retrieval prior art is as follows:
File one, notification number are the intelligent controlling device that CN201489369U discloses a kind of concrete pipe pile reinforcement tensioning machine, comprise pressure transducer, central processing unit and Combined hydraulic valve activator; Pressure transducer detects the pressure signal of hydraulic system in stretching process and sends into central processing unit analysis, processing, and the output terminal of central processing unit is provided with in order to control the signal wire with Combined hydraulic valve valve driving machine structure.Combination valve driving mechanism is the mechanism by Electric Machine Control, and its motor transmission shaft output terminal is provided with the shaft coupling being connected with the transmission shaft of the rotary drive mechanism of valve.
File two, China Patent No. are 200810044271.1, and Granted publication number is that the utility model patent of CN100580590C discloses a kind of anchor cable stretching automatic monitoring system and method for supervising.Passed lifting jack center by the steel strand wires of stretch-draw, and at the exterior rod-pulling type displacement transducer of cylinder body, on scavenge pipe, fill pressure transducer simultaneously, the displacement of measurement and oil pressure are converted to electric signal, arrive hardware platform through long Distance Transmission, establish in turn data acquisition module, containing monitor main frame, motor drive module and the data autostore output system of central processing unit, data-carrier store and serial communication interface.By programming Control, send fuel tap aperture to realize automatic Tensioning by Electric Machine Control, then by tensioning speed and fuel injection pressure signal control direction of motor rotation and speed, reach control oil pressure.Realize anchorage cable stretching automatic real-time monitoring, feedback, record and printing reports chart automatically, not only greatly reduced labour intensity and raise the efficiency, and effective guarantee anchor cable construction quality.Replace existing milscale and tensimeter with advanced high-precision sensor, realize the leap of measurement means.Be used for needing the Geotechnical Engineering of prestress application-anchorage cable stretching.
Prior art content from above-mentioned retrieval:
1, to be badly in need of realizing Based Intelligent Control large to overcome in traditional tension process labor strength for existing tubular piles stretching machine, the probability of placing oneself in the midst of dangerous matter sources is large, and ineffective technical disadvantages, can by Based Intelligent Control ensured prestressed stretch-draw accurately and record true, not enough and record false quality problems to overcome artificial prestressed stretch-draw.
2, existing supervisory system or intelligent controlling device can detect by the oil pressure on hydraulic circuit, or oil pressure detects, and the two detects simultaneously with pressure transducer, or oil pressure detection, pressure transducer and displacement transducer three detect simultaneously, detection signal is also final by controlling direction of motor rotation and speed after central processing unit is processed, reach control oil pressure, thereby realize the high precision control of stretching force.
The applicant is through studying discovery for a long period of time, and in prior art, in file one, file two, technology exists following technical disadvantages:
1, oil pressure control adopts the transmission shaft of motor transmission shaft band movable valve rotary drive mechanism to realize valve opening adjusting, and it requires high to motor performance.
2, because detection signal variation is fast, central processing unit need to be adjusted repeatedly to motor, motor at short notice fast, mechanical action makes its bearing bear very large working strength repeatedly, and electrode use and maintenance expense is high.
3, central processing unit processing signals is carried out drive motor through motor drive module, and motor is realized oil circuit by driving-belt movable valve again and regulated, and regulating step is many, and motor is low by the reaction sensitivity of driving-belt movable valve again.
4, file one technology control accuracy can not show a candle to file two technology control accuracies, and the multiple sensors such as displacement transducer, pressure transducer, pressure unit in file two, are adopted, although improved control accuracy, but in file two, technology for detection opertaing device is too much, too much detecting sensor is used has not only increased device fabrication cost, also make cost of equipment maintenance high, be unfavorable for reducing pile tube cost.
Utility model content
The purpose of this utility model is the weak point in order to overcome existing tension technology, and the digital control system of a kind of pile tube automatic Tensioning machine of simple in structure, easy and simple to handle, high-precision intelligent control prestressed stretch-draw is provided.
In order to achieve the above object, the utility model adopts following scheme:
A digital control system for pile tube automatic Tensioning machine, comprises lifting jack, hydraulic system and circuit control system, and lifting jack inner sleeve has stretch-draw piston that can storage solution force feed; Circuit control system comprises the pressure transducer of stretch-draw piston stretching force on central controller, detection lifting jack and detects the pressure unit of pipeline road oil pressure in hydraulic system; The detection signal of pressure transducer is through the first A/D converter input central controller, and the detection signal of pressure unit is through the second A/D converter input central controller; The proportional velocity regulating valve of oil circuit control flow is housed on the oil circuit of hydraulic system, and central controller output terminal is connected with D/A, and D/A is put device through ratio and amplified rear drive proportional velocity regulating valve to realize the regulation and control of Hydraulic System Oil road binders pressure.
Pressure transducer is made up of the LOAD CELLS of 3 wiring parallel connections that are evenly distributed, and pressure transducer is fixed on stretch-draw piston by pressure transducer fixture.
The first A/D converter is the weighing instrument that the electric signal of pressure transducer can be converted to digital signal and measured value is shown.Central controller and the first A/D converter, the second A/D converter and D/A parallel communications.
Central controller is connected with the operation interface of serial communication.Central controller is connected with monitoring host computer by communication bus.
Hydraulic system includes the unidirectional fixed displacement pump in whole oil circuit pressure feed source and drives the drive motor of unidirectional fixed displacement pump.The oil-out of unidirectional fixed displacement pump is connected with and can and realizes the solenoid directional control valve that oil circuit commutates by the surplus valve of oil mass bypass, proportional velocity regulating valve.Solenoid directional control valve oil-out is connected with can be by the hydraulic lock of oil circuit locking, the outlet of hydraulic lock is connected with electromagnetism reset unloader, electromagnetism stretch-draw unloader, tensimeter and the pressure unit that can be electric signal by hydraulic lock pressure size conversion, and solenoid directional control valve, electromagnetism reset unloader and electromagnetism stretch-draw unloader are directly connected with described central controller.
Drive motor is provided with holding circuit; in the time that central controller detects that the force value of tensimeter, pressure unit exceedes the technological parameter of permission; pressure unit sends stop instruction and reports to the police, central controller trigger protection circuitry cuts drive motor, system fuel cut-off.
In sum, the utility model with respect to its beneficial effect of prior art is:
One, oil path control system in the utility model is made up of various valve modules, save manual operation, the proportional velocity regulating valve of oil circuit control flow is housed on the oil circuit of hydraulic system, central controller output terminal is connected with D/A, D/A is put device through ratio and is amplified rear drive proportional velocity regulating valve to realize the regulation and control of Hydraulic System Oil road binders pressure, when central controller receive pressure transducer and or when pressure unit Fluctuation of analytical signal, central controller is converted to pressure signal the switching signal of proportional velocity regulating valve stepless speed regulation, and control solenoid directional control valve simultaneously, electromagnetism reset unloader and electromagnetism stretch-draw unloader regulate, keep pressure precision in a rational process parameters range.
Two, the circuit control system in the utility model is done command centre's control by central controller completely, central controller receives outside various electric signals, greatly improved pressure controling precision, do not rely on completely artificial, simple in structure, easy and simple to handle, realize numerical control object.
Three, in the utility model, adopt central controller controls solenoid directional control valve, electromagnetism reset unloader and electromagnetism stretch-draw unloader and proportional velocity regulating valve, in control procedure, be quick on the draw, there is high accuracy of detection, avoid controlling motor-driven valve door in prior art and realize the structural disadvantages of adjusting hole, due to completely by automatically controlling stretch-draw link, save the stretch-draw time, tubular piles stretching technique has been ensured to qualitative leap.
Four, in the utility model, there are 2 groups of pressure detection links of pressure unit and pressure transducer, in the time that wherein a road detection breaks down, needing only You Yi road link normally works, do not affect the normal operation of whole system, greatly improved the reliability of whole system.
Five, in the utility model when exceeding the pressure detection of scope of control accuracy, as long as exceed the not permissible value of technological parameter, just system stopping alarm has ensured the security of whole system.
Seven, in the utility model, there are tensimeter demonstration, weighing instrument to show and monitor host computer storage, demonstration and output, showing more directly perceived.
Eight, proportional velocity regulating valve is a kind of energy type valve of saving, it can provide necessary minimum pressure and flow for the work of executive component, have that volume is little, moving component inertia is little, required driving force is little, the advantages such as sensitivity height, are applied to proportional velocity regulating valve in the hydraulic system in the utility model, receive outside various electric signal by central controller, greatly improve pressure controling precision, realized high-precision intelligent control.
Brief description of the drawings
Fig. 1 is the utility model automatic Tensioning digital control system schematic diagram.
Embodiment
Below in conjunction with embodiment, the utility model is further described:
As shown in Figure 1,
A digital control system for pile tube automatic Tensioning machine, comprises lifting jack 25, hydraulic system 27 and circuit control system 24.
The detection signal of pressure transducer 13 is through the first A/D converter input central controller 18, and the detection signal of pressure unit 8 is inputted central controller 18 through the second A/D converter 20; Central controller 18 output terminals are connected with D/A 21, and D/A 21 amplifies rear drive proportional velocity regulating valve 4 to realize hydraulic system 27 oil circuit oil pressure regulation and control through proportional amplifier 22.
The first A/D converter is the weighing instrument 23 that the electric signal of pressure transducer 13 can be converted to digital signal and measured value is shown.
In the utility model, tensioning nut 15 rotates on tensioning screw rod 16, and lifting screw 10 is in the same center line with tensioning screw rod 16, and lifting jack 25 contacts completely with pipe die 26, and rotating nut 11 rotates to pressure transducer fixture 12 and contacts completely.
In the utility model, set various pile tube specifications parameters by operation interface 19, be kept in central controller 18.
In the utility model, on operation interface 19, selected good pile tube specification, presses start button, and central controller 18 is started working, and drive motor 2 starts to rotarily actuate unidirectional fixed displacement pump 1, and system starts to set up working pressure.
In the utility model, central controller 18 sends given signal, drive solenoid directional control valve 5 left side actions, reset unloader 7 obtains the electric left position that works in, hydraulic lock 6 conductings, and stretch-draw unloader 9 dead electricity work in left position, stretch-draw piston 14 starts to move to the left, pressure unit 8 converts pressure signal to the electric signal being directly proportional to pressure simultaneously, and pressure transducer 13 is started working equally, pressure signal is converted to the electric signal being directly proportional to pressure.
In the utility model, the pressure of stretch-draw piston 14 acts on pressure transducer 13 by pressure transducer fixture 12, converts faint electric signal to and inputs to weighing instrument.
In the utility model, central controller 18 is given D/A 21 digital quantity signals, and this digital quantity signal converts analog signals to through D/A 21, puts the coil that device 22 amplifies rear drive proportional velocity regulating valve 4 implement regulation and control through ratio.
In the utility model, in the time that central controller 18 detects that the actual pressure value of weighing instrument, pressure unit 8 reaches within the process parameters range of permission, the adjusting aperture of proportional amplifier 22 control ratio flow speed control valves 4, control the oil inlet quantity of stretch-draw piston 14, within pressure being controlled to the technological parameter of permission.Now, workman's rotary fixing screw mother 17 is close to pipe die 26 outer faces.
In the utility model, in the time that the pressure of weighing instrument, pressure unit 8 raises, central controller 18 strengthens the given aperture of proportional velocity regulating valve 4; In the time that the pressure of weighing instrument, pressure unit 8 reduces, central controller 18 reduces the given aperture of proportional velocity regulating valve 4, pressure is remained on and allow in process parameters range.
In the utility model, in the time that the pressure of unidirectional fixed displacement pump 1 exceedes the set-pressure of surplus valve 3, surplus valve 3 conductings, ensure security of system.
In the utility model; drive motor 2 is provided with holding circuit; in the time that central controller 18 detects that the force value of tensimeter 28, pressure unit 8 exceedes the technological parameter of permission; pressure unit 8 sends stop instruction and reports to the police; central controller 18 trigger protection circuitry cuts drive motor 2; cut off drive motor 2, system fuel cut-off.
In the utility model, owing to there being double check protection, when weighing instrument, pressure unit 8 are when wherein any link breaks down, what do not affect whole system normally uses work.
This in bright, after stretch-draw completes, central controller 18 sends off-load instruction automatically, now solenoid directional control valve 5 obtains the electric right position that works in, reset reversal valve 7 dead electricity work in right position, stretch-draw reversal valve 9 obtains right position, electric place of working, and stretch-draw piston 14 moves right, and the time of setting quits work to rear whole system.
In the utility model, monitoring host computer 29 does not stop poll central controller 18, and central controller is uploaded tension data in real time, for setting up pile tube technological data bank needs.
Claims (8)
1. a digital control system for pile tube automatic Tensioning machine, comprises lifting jack (25), hydraulic system (27) and circuit control system (24), and described lifting jack (25) inner sleeve has stretch-draw piston (14) that can storage solution force feed; Described circuit control system (24) comprises central controller (18), detects the pressure transducer (13) of upper stretch-draw piston (14) stretching force of lifting jack (25) and detects the above pressure unit (8) of pipeline road oil pressure of hydraulic system (27); The detection signal of pressure transducer (13) is through the first A/D converter input central controller (18), and the detection signal of pressure unit (8) is through the second A/D converter (20) input central controller (18); It is characterized in that: the proportional velocity regulating valve (4) that oil circuit control flow is housed on the oil circuit of described hydraulic system (27), described central controller (18) output terminal is connected with D/A (21), and D/A (21) amplifies rear drive proportional velocity regulating valve (4) to realize the regulation and control of hydraulic system (27) oil circuit oil pressure through proportional amplifier (22).
2. a kind of digital control system of pile tube automatic Tensioning machine according to claim 1, is characterized in that: the weighing instrument (23) of described the first A/D converter for the electric signal of pressure transducer (13) being converted to digital signal and measured value is shown.
3. according to the digital control system of a kind of pile tube automatic Tensioning machine described in claim 1 or 2, it is characterized in that: described central controller (18) and the first A/D converter, the second A/D converter (20) and D/A (21) parallel communications.
4. a kind of digital control system of pile tube automatic Tensioning machine according to claim 1, it is characterized in that: described hydraulic system (27) includes the unidirectional fixed displacement pump (1) in whole oil circuit pressure feed source and drives the drive motor (2) of unidirectional fixed displacement pump (1), the oil-out of described unidirectional fixed displacement pump (1) is connected with can be by the surplus valve of oil mass bypass (3), described proportional velocity regulating valve (4) and realize the solenoid directional control valve (5) of oil circuit commutation, described solenoid directional control valve (5) oil-out is connected with can be by the hydraulic lock of oil circuit locking (6), the outlet of described hydraulic lock (6) is connected with electromagnetism reset unloader (7), electromagnetism stretch-draw unloader (9), tensimeter (28) and the described pressure unit (8) that can be electric signal by hydraulic lock (6) pressure size conversion, solenoid directional control valve (5), electromagnetism reset unloader (7) is directly connected with described central controller (18) with electromagnetism stretch-draw unloader (9).
5. a kind of digital control system of pile tube automatic Tensioning machine according to claim 1, is characterized in that: described central controller (18) is connected with the operation interface (19) of serial communication.
6. a kind of digital control system of pile tube automatic Tensioning machine according to claim 1, is characterized in that: described central controller (18) is connected with monitoring host computer (29) by communication bus (30).
7. a kind of digital control system of pile tube automatic Tensioning machine according to claim 1, it is characterized in that: it is upper that described pressure transducer (13) is fixed on stretch-draw piston (14) by pressure transducer fixture (12), and pressure transducer (13) is made up of the LOAD CELLS of 3 wiring parallel connections that are evenly distributed.
8. a kind of digital control system of pile tube automatic Tensioning machine according to claim 1; it is characterized in that: described drive motor (2) is provided with holding circuit; in the time that central controller (18) detects that the force value of tensimeter (28), pressure unit (8) exceedes the technological parameter of permission; pressure unit (8) sends stop instruction and reports to the police; central controller (18) trigger protection circuitry cuts drive motor (2), system fuel cut-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320864824.4U CN203658794U (en) | 2013-12-25 | 2013-12-25 | Numerical control system for automatic tube pile tensioning machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320864824.4U CN203658794U (en) | 2013-12-25 | 2013-12-25 | Numerical control system for automatic tube pile tensioning machine |
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| CN203658794U true CN203658794U (en) | 2014-06-18 |
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| CN201320864824.4U Expired - Lifetime CN203658794U (en) | 2013-12-25 | 2013-12-25 | Numerical control system for automatic tube pile tensioning machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329309A (en) * | 2014-10-18 | 2015-02-04 | 柳州东迎预应力技术有限公司 | Prestressed tensioning system |
| CN111101445A (en) * | 2019-12-25 | 2020-05-05 | 河南永智科技有限公司 | Hydraulic system for intelligent prestress tensioning equipment and synchronous tensioning method thereof |
| CN114321035A (en) * | 2021-12-29 | 2022-04-12 | 筑友智造智能科技有限公司 | Intelligent tensioning equipment for prestressed reinforcement |
-
2013
- 2013-12-25 CN CN201320864824.4U patent/CN203658794U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329309A (en) * | 2014-10-18 | 2015-02-04 | 柳州东迎预应力技术有限公司 | Prestressed tensioning system |
| CN111101445A (en) * | 2019-12-25 | 2020-05-05 | 河南永智科技有限公司 | Hydraulic system for intelligent prestress tensioning equipment and synchronous tensioning method thereof |
| CN114321035A (en) * | 2021-12-29 | 2022-04-12 | 筑友智造智能科技有限公司 | Intelligent tensioning equipment for prestressed reinforcement |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tongxing road 528414 Guangdong city of Zhongshan Province Dongsheng Town, No. 28 Patentee after: GUANGDONG SANHE PILES Co.,Ltd. Address before: Tongxing road 528414 Guangdong city of Zhongshan Province Dongsheng Town, No. 28 Patentee before: GUANGDONG SANHE TUBULAR PILE Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |