CN202658523U - Secure intelligent steel-strand secondary tensioning system - Google Patents
Secure intelligent steel-strand secondary tensioning system Download PDFInfo
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- CN202658523U CN202658523U CN 201120569335 CN201120569335U CN202658523U CN 202658523 U CN202658523 U CN 202658523U CN 201120569335 CN201120569335 CN 201120569335 CN 201120569335 U CN201120569335 U CN 201120569335U CN 202658523 U CN202658523 U CN 202658523U
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Abstract
The utility model discloses a secure intelligent steel-strand secondary tensioning system. Mainly aiming at the special requirements of secondary tensioning construction of bridge prestressed tendons, the utility model develops a bran-new intelligent tensioning system. The key point of the technical scheme of the utility model is as follows: through carrying out remote online real-time detection on tensioning force and tensioning elongation value data, and automatically calling corresponding digital first tensioning force and tensioning elongation value data in the process of secondary tensioning, primary tensioning and secondary tensioning are organically connected so as to realize the whole-process secure intelligent tensioning construction of prestressed tendons. A lower computer receives an instruction of an upper computer and controls an intelligent multi-station reversing valve, an intelligent hydraulic power supply and an operating jack to complete scheduled actions, so that the online detection of tensioning force and tensioning elongation value data is realized, and the data is transmitted to the upper computer in a wireless mode. One upper computer can simultaneously control two lower computers and operating systems thereof so as to achieve safe, effective and synchronous tensioning construction. The system disclosed by the utility model can be applied to bridge prestressed construction, and especially applied to operations of carrying out secondary tensioning construction on a same bunch of prestress under various complicated construction conditions.
Description
Technical field
The utility model relates to a kind of intelligent prestress two times tensioning system, particularly a kind of safe type intelligent prestress wire two times tensioning system.
Background technology
At present, gradually adopt intelligent tensioning equipment in highway, the railroad bridge pre-stress construction, the intelligent tensioning construction equipment of having used is to improving the tensioning construction synchronism, reduce site operation randomness, lifting supervision and raising construction level and quality and played preferably effect, but also there are the following problems:
1, computer-controlled full-automatic is finished stretching construction during intelligent tensioning, the tensioning equipment spare and accessory parts, it is inevitable problem that detecting element breaks down, to cause the prestressing force that applies and surpass (or not reaching) design load when error (or fault) appears in detecting element or equipment, the degree of prestressing of construct too high (or deficiency) and underproof situation occurs.
2, the construction of tendon of steel strand two times tensioning has complete inconsistent construction requirement and method with traditional tensioning construction, there is no at present satisfied " steel strand two times tensioning presstressed reinforcing steel " intelligent tensioning system.。
Summary of the invention
The purpose of this utility model provides a kind of safe-type intelligent secondary steel strand tensioning system that can satisfy " steel strand two times tensioning construction technology " requirement of guaranteeing tension of prestressed tendon safety.
The technical scheme that its technical problem that solves the utility model adopts is: it partly is comprised of Based Intelligent Control assembly 1, multiple spot pressure detecting assembly 2, the online detection components 3 of stretch value, intelligent hydraulic power source 4, work jack 6 etc., presets special-purpose softwares such as embedding steel strand power muscle single tension program, steel strand power muscle two times tensioning program, theoretical elongation value of stretching design formulas, action command, data storage, wireless receiving, emission, interface display and data input and output in Based Intelligent Control assembly 1; Remote slave computer 9 and intelligent hydraulic power source 4,6 work of work jack, online in real time detection stretching force, elongation value of stretching numerical value also transfers to host computer 10; Automatically finish for the first time stretch-draw of presstressed reinforcing steel and the stretching construction second time by the relevant executive component of Based Intelligent Control assembly 1 control system and observing and controlling element; And the stretching force that will when stretch-draw, survey and stretching extension Value Data, by being wirelessly transmitted to host computer 10; The default program of host computer 10 operations, synchronous theory of computation elongation value of stretching, and with the online actual measurement of time point to elongation value of stretching compare, judge that theoretic elongation and actual measurement stretch value error are whether in prescribed limit, when exceeding prescribed limit, to send warning, show failure code and suspend the stretch-draw operation, after manually fixing a breakdown, again send instructions and to continue the stretch-draw operation, realize dynamic monitoring stretching force and stretch value, guarantee that the Zhi Liang Shi event not in place of super stretch-draw or stretching force can not occur stretching construction.
Based Intelligent Control assembly 1 described in the utility model is comprised of double-direction radio transmitter module 8, slave computer 9 and host computer 10, and described host computer 10 comprises single tension program, two times tensioning program and theoretical elongation value of stretching design formulas thereof, action command, data storage, the special-purpose executive software of computer, embedding.Be provided with wireless telecommunications system in the host computer computer, corresponding program is preset in good time operation of computer and wireless remote control slave computer 9 sends the action commands such as " stretch-draw ", " time-out is held lotus ", " accelerating/reduce tensioning speed ", " adjusting stretch-draw oil pressure rise/fall speed ", " backhaul of work jack ", " unloaded standby " to executive component, receive online actual measurement " stretching force ", " elongation value of stretching " data, record the stretch-draw time, and the internet specified database is stored and be sent to its data with the form that can not edit; Instant playback " meta-stretching force curve during stretch-draw ", " stretching force-elongation value of stretching curve " and " in real time stretching force numerical value ", " in real time stretch value numerical value ".
Multiple spot pressure detecting assembly 2 described in the utility model is by two above pressure sensors 5, holding wire 5A, form with slave computer 9.Pressure sensor is arranged between stretch-draw jack working chamber and the inlet valve on the pipeline and between inlet valve and the intelligent multi-station changing-over valve on the pipeline; When the oil-feed of jack working chamber, the real-time pressure value that a plurality of test points detect is input to respectively slave computer 9 by the holding wire that is complementary, the numerical value of multimetering should be within its sensor accuracy error, exceed the specification error value and then judge have the sensor of a point to break down, Based Intelligent Control assembly 1 will immediately send and suspend the stretching construction instruction at this moment, after artificial investigation was removed fault, again sending stretch-draw work order system can work on again.Can effectively prevent from causing actual stretching force and setting value the great Zhi Liang Shi event that is not inconsistent because detecting element breaks down.
The online detection components 3 of stretch value described in the utility model comprises stay-supported light coral chi 11, sensor shield 12, data connecting line 13 and slave computer 9, and stay-supported light coral chi 11 housings are fixed on the stretch-draw jack excircle, and backguy is fixed on the jack piston rod; Jack piston is overhanging, and the backguy of stay-supported light coral chi 11 is thereupon overhanging, thereby measures the jack stretch value; Sensor shield 12 is fixed on the safety of stay-supported light coral chi 11 peripheries protection light coral chi.
The online detection components 3 of stretch value described in the utility model also can be designed to comprise stay-supported type displacement sensor, sensor shield 12, data connecting line 13 and slave computer 9, the stay-supported type displacement sensor housing is fixed on the stretch-draw jack excircle, and backguy is fixed on the jack piston rod; Jack piston is overhanging, and the backguy of stay-supported type displacement sensor is thereupon overhanging, thereby measures the jack stretch value; Sensor shield 12 is fixed on the safety of stay-supported type displacement sensor periphery guard bit displacement sensor.
The real-time stretching force parameter that the online detection components 3 of stretch value described in the utility model will record is transferred to host computer 10 and calculates the elongation value of stretching that real-time theoretic elongation and same time point record and compare, when exceed+6%～+ 15% or suspend stretching construction during-6%～-15% error, send fault alarm.
The utility model is in described host computer 10, embed special " with for the first time stretch-draw of a branch of presstressed reinforcing steel actual measurement stretch value and for the second time stretch-draw actual measurement stretch value is comprehensive measure in real time " software, the total actual elongation of presstressed reinforcing steel carries out kinetic measurement when carrying out for the second time stretch-draw with a branch of tendon of steel strand.Its measuring method is; For the first time stretch-draw is finished and is put, when oil pressure during at 1MP, reads elongation value of stretching numerical value and deposits database in, and this numerical value will be as the stretch value of stretch-draw second time initial stress.When this bundle presstressed reinforcing steel is implemented stretch-draw for the second time, the stretch-draw first time of transferring corresponding bundle from database is put an elongation value of stretching that reads when finishing and is made radix, the real-time stretch value of for the second time stretch-draw of stack, the actual measurement stretch value that obtains then is the real-time general extension value of this bundle presstressed reinforcing steel.
The utility model is in described Based Intelligent Control assembly 1, the security control software that comprises " this bundle maximum pressure value ", " intelligent hydraulic power source system maximum pressure limit value ", " the highest voltage limiting value of jack work backhaul " parameter can be manually set in embedding, when surpassing setting value, intelligent hydraulic power source 4 automatic fuel cutoffs, the automatic out-of-work program of system.
Intelligent hydraulic power source 4 described in the utility model comprises plunger displacement pump 20, motor 21, frequency converter 22, fuel tank 23, three station automatic valves 14, pressurize one way valve 15, electromagnetism one-way load releasing valve 16 and slave computer 9.Plunger displacement pump 20 links to each other with motor 21, slave computer 9 control frequency converters 22 are adjusted motor speed, its plunger displacement pump 20 rotating speeds are regulated arbitrarily at 0～1400 rev/min, the output oil mass is step-less adjustment between 0～12 liter/min thereupon, slave computer 9 stretches out speed according to the power muscle to the resistance of stretch-draw jack work and the stretch-draw of requirement, adjust plunger displacement pump 20 rotating speeds, output is stretched out the pressure oil of speed equivalent discharge in working chamber with the work jack, the moment of exporting because of frequency control is constant, hydraulic system is closed system, the load of stretch-draw work jack determines the pressure of power source output, positive correlation changes with fitting like a glove with stretching out the requirement of velocity variations along with the variation of work jack load for the pressure of system output and flow, when stretch-draw work jack did not move, hydraulic power supply quit work, unpowered energy consumption.
The beneficial effects of the utility model are: intelligent steel strand two times tensioning system can be by initialize program full-automatic complete first time of stretching construction, stretching construction for the second time, simultaneously, online detect real-time stretching force in the stretching process and elongation value of stretching and with corresponding theory of correspondences stretch value relatively, guarantee setting the allowable error scope, otherwise system is with break-off and therefore alarm processes parapet.System also can transfer to specified database by wireless Internet finally in real time with measured data, for the owner, manages, and the unit management persons such as construction enterprises inquire about and preserve as original record, promotes workmanship supervision level.
The utility model is because adopting unique intelligent hydraulic power source, realized that hydraulic power supply only just turns round in jack impulse stroke and backhaul, and pressed the required pressure of jack and flow transmitting power fully, without any other reactive loss, significantly improved the energy loss-rate, actual consumption significantly reduces.
Description of drawings
Fig. 1 is that critical piece of the present utility model forms the layout schematic diagram.
Fig. 2 is Based Intelligent Control arrangement of components schematic diagram of the present utility model.
Fig. 3 is that the online detection components of stretch value of the present utility model is arranged schematic diagram.
Fig. 4 is intelligent multi-station changing-over valve structural representation of the present utility model.
Fig. 5 is Fig. 4 plan structure schematic diagram.
Fig. 6 is intelligent hydraulic power source structural representation of the present utility model.
Among the figure: 1-Based Intelligent Control assembly; 2-multiple spot pressure detecting assembly; The online detection components of 3-stretch value; 4-intelligent hydraulic power source; 5-intelligence multi-station changing-over valve; The 6-jack of working; The 7-inlet valve; 8-double-direction radio transmitter module; The 9-Special Programmable Logic Controller (is called for short: slave computer); 10-portable dedicated microcomputer (is called for short: host computer); 11-stay-supported light coral chi; The 12-sensor shield; The 13-data connecting line; 14-three station valves; The 15-transmission mechanism; The 16-direct current is dynamo-electric; The left position of 17-sensor; The right position of 18-meta sensor: 19-sensor: 20-plunger displacement pump; The 21-motor; The 22-frequency converter; The 23-fuel tank.
The specific embodiment
Below in conjunction with embodiment the utility model is further described;
Based Intelligent Control assembly 1, be comprised of double-direction radio transmitter module 8, slave computer 9, host computer 10, its slave computer (9) is accepted host computer 10 instructions, implement to detect stretching force and elongation value of stretching numerical value online, and by being wirelessly transmitted to host computer 10.The default stressing sequence of host computer 10 operations, after recording real-time stretching force, synchronous theory of computation elongation value of stretching, and with the online actual measurement of time point to elongation value of stretching compare, judge that theoretic elongation and actual measurement stretch value error are whether in allowed band, exceed setting range, to send warning, show failure code and suspend the stretch-draw operation, after manually fixing a breakdown, again send instructions and to continue the stretch-draw operation, guarantee pre-stress rib stretching force whole process in slave mode, construction quality and safety are all in ideal state.
Embed the single tension program in the high-performance notebook computer of host computer 10, two times tensioning program and theoretical elongation value of stretching design formulas thereof, action command, the data storage, wireless receiving, emission, interface display, the data input, special-purpose software and the 3G WLAN card softwares such as report output, corresponding program is preset in good time operation of host computer 10 and wireless remote control slave computer 9 sends " stretch-draw " to executive component, " time-out is held lotus ", " accelerate/reduce tensioning speed ", " adjust stretch-draw oil pressure rise/fall speed ", " backhaul of work jack ", action commands such as " unloaded standbies ", receive online actual measurement " stretching force ", " elongation value of stretching " data, record the stretch-draw time, and the internet specified database is stored and be sent to its data with the form that can not edit; Instant playback " meta-stretching force curve during stretch-draw ", " stretching force-elongation value of stretching curve " and " in real time stretching force numerical value ", " in real time stretch value numerical value "; The real-time stretching force parameter that records is input to " theoretic elongation calculation procedure " to be calculated the elongation value of stretching that real-time theoretic elongation and same time point record and compares, when exceeding the setting allowable error, suspend stretching construction, after manually investigating thoroughly reason and getting rid of fault, manually again send instruction, can continue stretch-draw work.
The detection data communication device that host computer 10 can not be edited is crossed 3G wireless Internet real-time Transmission to specified database, for technician's supervision of related management department.
Breaking down in system debug or the automatic work progress needs to adjust, debug; Enter the homepage interface, by [manually stretch-draw] button, enter " manual operation interface ", this interface is provided with [stretch-draw], [time-out], [backhaul], [idle running], [acceleration], [deceleration] button, the various functions that can manually finish respectively the required adjustment of single device or finish.
Consult Fig. 1 to Fig. 6, the unaccounted function of the present embodiment is with embodiment 1.
Based Intelligent Control assembly 1, be comprised of double-direction radio transmitter module 8, slave computer 9, host computer 10, its slave computer (9) is accepted host computer 10 instructions, implement to detect stretching force and elongation value of stretching numerical value online, and by being wirelessly transmitted to host computer 10.The default stressing sequence of host computer 10 operations, after recording real-time stretching force, synchronous theory of computation elongation value of stretching, and with the online actual measurement of time point to elongation value of stretching compare, judge that theoretic elongation and actual measurement stretch value error are whether in allowed band, exceed setting range, to send warning, show failure code and suspend the stretch-draw operation, after manually fixing a breakdown, again send instructions and to continue the stretch-draw operation, guarantee pre-stress rib stretching force whole process in slave mode, construction quality and safety are all in ideal state.
For the first time stretch-draw; Host computer 10 is provided with intelligent human-computer dialogue prompting interface, after various parts and erection of equipment debugging put in place, opens host computer 10, the homepage interface display; [automatic Tensioning], [manually stretch-draw], [setting parameter], [data query] four buttons are selected for the operator; Normal construction can be selected [setting parameter], enter parameter the interface is set, numbering, the prestressing tendon of input plan stretching construction prestressed girder are numbered respectively, and for the first time stretch-draw of presstressed reinforcing steel and for the second time stretch-draw relevant parameter, prestressed pore passage parameter should in time be preserved behind the setting parameter.After the parameter setting was finished, [automatic Tensioning] button was selected at back to homepage interface, enter parameter and confirm the interface, prompting confirms to be about to beam numbering, the prestressing tendon numbering of stretching construction, presstressed reinforcing steel parameter, for the first time stretch-draw or for the second time stretch-draw, and by corresponding [for the first time stretch-draw is confirmed] button.Simultaneously, also need confirm prompting in the red frame; Jack and moveable anchor, limiting plate are installed, and whether suspender is stressed loosens, again by this redness [affirmation] button.System namely begins for the first time stretch-draw operation automatically by predetermined stressing sequence.Enter simultaneously automatic Tensioning job monitoring interface, interface display instant " meta-stretching force curve during stretch-draw ", " stretching force-elongation value of stretching curve " and " in real time stretching force numerical value ", " in real time stretch value numerical value "; The below, interface is provided with [time-out], [continuation stretch-draw], [returning], [emergency shutdown] button; unusual circumstance can be by [time-out] button in the automatic Tensioning operation process for the operator; the system halt machine stops operation; after checking that affirmation can be proceeded the stretch-draw operation; by [continuation stretch-draw] button, system continues original program automatic Tensioning construction operation at the time-out place.Such as emergency, can directly press [emergency shutdown] button, system's emergency shutdown of cutting off the electricity supply determines it is to continue stretch-draw or return again and start anew according to different situations after the pending corresponding failure again.System automatically finishes stretch-draw, holds lotus, puts an off-load, actual stretch value and be stored into database after system oil pressure is automatically measured when 0.5MPa and put for the first time.The interface enters " backstroke " prompting; " whether jack and instrument are ready to ", " the highest voltage limiting value MPa of backhaul ", by [affirmation] button, system begins automated backhaul, this bundle is after the stretching construction task is finished for the first time, and system enters this bundle " inquiry of stretch-draw measured data " interface, can inquire about the relevant measured data of having finished the stretching force muscle, by [inquiry] button, enter relevant measured data interface; By [end] button, return the homepage interface.
For the second time stretch-draw; Host computer 10 is provided with intelligent human-computer dialogue prompting interface, after various parts and erection of equipment debugging put in place, opens host computer 10, the homepage interface display; [automatic Tensioning], [manually stretch-draw], [setting parameter], [data query] four buttons are selected for the operator; Select [automatic Tensioning] button, enter parameter and confirm the interface, prompting confirms to be about to beam numbering, the prestressing tendon numbering of stretching construction, presstressed reinforcing steel parameter, for the first time stretch-draw or for the second time stretch-draw, and by [for the second time stretch-draw is confirmed] button.Simultaneously, also need confirm prompting in the red frame; Jack and stretch-draw fastening means, whether suspender is stressed loosens, again by this redness [affirmation] button.System namely begins for the second time stretch-draw operation automatically by predetermined stressing sequence, enter simultaneously automatic Tensioning job monitoring interface, interface display instant " meta-stretching force curve during stretch-draw ", " stretching force-elongation value of stretching curve " and " in real time stretching force numerical value ", " in real time stretch value numerical value "; The real surplus elongation value of stretching that system transfers for the first time stretch-draw after putting, with this as the starting point, the above real-time stretch value of for the second time stretch-draw of stack initial stress, the real-time stretch value of the actual measurement of interface display is this Shu Shiji elongation.The below, interface is provided with [time-out], [continuation stretch-draw], [returning], [emergency shutdown] button; unusual circumstance can be by [time-out] button in the automatic Tensioning operation process for the operator; the system halt machine stops operation; after checking that affirmation can be proceeded the stretch-draw operation; by [continuation stretch-draw] button, system continues original program automatic Tensioning construction operation at the time-out place.Such as emergency, can directly press [emergency shutdown] button, system's emergency shutdown of cutting off the electricity supply determines it is to continue stretch-draw or return again and start anew according to different situations after the pending corresponding failure again.System automatically finishes stretch-draw, holds lotus, puts an off-load, and the interface enters " backstroke " prompting; " whether jack and instrument are ready to ", " the highest voltage limiting value MPa of backhaul ", by [affirmation] button, system begins automated backhaul, this bundle is after the stretching construction task is finished for the second time, and system enters this bundle " inquiry of stretch-draw measured data " interface, can inquire about the relevant measured data of having finished the stretching force muscle, by [inquiry] button, enter relevant measured data interface; By [end] button, return the homepage interface.
Consult Fig. 1 to Fig. 6, the unaccounted function of the present embodiment is with embodiment 1 and embodiment 2.
Plunger-type fuel pump adopts six groups directly through 10 millimeters plunger coupling spare super-pressure pumps, 12 liter/mins of flows; High output pressure 60Mp.a; Motor adopts 3kw level Four common electric machine; Frequency converter employing type frequency converter, it is left that three station automatic valves 14 adopt three-position four-way valve to increase, in, the structure of right position inductosyn and reduction gearing mechanism, plunger-type fuel pump 20 links to each other with motor 21, slave computer 9 control frequency converters 22 are adjusted motor speed, its plunger displacement pump 20 rotating speeds are regulated arbitrarily at 0～1400 rev/min, the output oil mass is step-less adjustment between 0～12 liter/min thereupon, slave computer 9 stretches out speed according to the power muscle to the resistance of stretch-draw jack work and the stretch-draw of requirement, adjust plunger displacement pump 20 rotating speeds, output is stretched out the pressure oil of speed equivalent discharge in working chamber with the work jack, the moment of exporting because of frequency control is constant, hydraulic system is closed system, the load of stretch-draw work jack determines the pressure of power source output, positive correlation changes with fitting like a glove with stretching out the requirement of velocity variations along with the variation of work jack load for the pressure of system output and flow, when stretch-draw work jack did not move, hydraulic power supply quit work, unpowered energy consumption.
Claims (10)
1. safe-type intelligent secondary steel strand tensioning system, it is characterized in that: it comprises Based Intelligent Control assembly (1), multiple spot pressure detecting assembly (2), the online detection components of stretch value (3), intelligent hydraulic power source (4) and work jack (6), and Remote slave computer (9) and intelligent hydraulic power source (4), work jack (6) connect host computer (10); Based Intelligent Control assembly (1) connects executive component and observing and controlling element; Parallel connection connects host computer (10).
2. safe-type intelligent secondary steel strand tensioning system according to claim 1, it is characterized in that: Based Intelligent Control assembly (1) comprises double-direction radio transmitter module (8), slave computer (9) and host computer (10), described host computer is provided with wireless telecommunications system in (10), and wireless connections slave computer (9).
3. according to right 1 described safe-type intelligent secondary steel strand tensioning system, it is characterized in that: described multiple spot pressure detecting assembly (2) comprises pressure sensor (5), holding wire (5A) and the slave computer (9) more than two; Pressure sensor is arranged between stretch-draw jack working chamber and the inlet valve on the pipeline and between inlet valve and the intelligent multi-station changing-over valve on the pipeline.
4. safe-type intelligent secondary steel strand tensioning system according to claim 1, it is characterized in that: the online detection components of described stretch value (3) comprises stay-supported light coral chi (11), sensor shield (12), data connecting line (13) and slave computer (9), stay-supported light coral chi (11) housing is fixed on the stretch-draw jack excircle, and backguy is fixed on the jack piston rod; Jack piston is overhanging, and the backguy of stay-supported light coral chi (11) is thereupon overhanging, thereby measures the jack stretch value; Sensor shield (12) is fixed on the safety of stay-supported light coral chi (11) periphery protection light coral chi.
5. safe-type intelligent secondary steel strand tensioning system according to claim 1, it is characterized in that: the online detection components of described stretch value (3) comprises stay-supported type displacement sensor, sensor shield (12), data connecting line (13) and slave computer (9), the stay-supported type displacement sensor housing is fixed on the stretch-draw jack excircle, and backguy is fixed on the jack piston rod; Jack piston is overhanging, and the backguy of stay-supported type displacement sensor is thereupon overhanging, thereby measures the jack stretch value; Sensor shield (12) is fixed on the safety of stay-supported type displacement sensor periphery guard bit displacement sensor.
6. safe-type intelligent secondary steel strand tensioning system according to claim 1 is characterized in that: the online detection components of described stretch value (3) connection host computer (10).
7. safe-type intelligent secondary steel strand tensioning system according to claim 1 is characterized in that; In described host computer (10), embed the comprehensive in real time Survey Software of two times tensioning actual measurement stretch value.
8. want 1 described safe-type intelligent secondary steel strand tensioning system according to right, it is characterized in that: the artificial security control software of setup parameter of embedding in described Based Intelligent Control assembly (1).
9. safe-type intelligent secondary steel strand tensioning system according to claim 1 is characterized in that; Intelligent hydraulic power source (4) comprises plunger displacement pump (20), motor (21), frequency converter (22), fuel tank (23), three station automatic valves (14), pressurize one way valve (15), electromagnetism one-way load releasing valve (16) and slave computer (9); Plunger displacement pump (20) links to each other with motor (21), and slave computer (9) connects frequency converter (22) and motor.
10. safe-type intelligent secondary steel strand tensioning system according to claim 1 is characterized in that; Described slave computer (9) comprises programmable logic controller (17), and connects intelligent hydraulic power source (4), work jack (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120569335 CN202658523U (en) | 2011-12-30 | 2011-12-30 | Secure intelligent steel-strand secondary tensioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120569335 CN202658523U (en) | 2011-12-30 | 2011-12-30 | Secure intelligent steel-strand secondary tensioning system |
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| CN202658523U true CN202658523U (en) | 2013-01-09 |
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| CN 201120569335 Expired - Lifetime CN202658523U (en) | 2011-12-30 | 2011-12-30 | Secure intelligent steel-strand secondary tensioning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526948A (en) * | 2013-10-24 | 2014-01-22 | 柳州黔桥工程材料有限公司 | Control method of intelligent tension system and intelligent tension system |
| CN106049880A (en) * | 2016-05-26 | 2016-10-26 | 中铁二十三局集团轨道交通工程有限公司 | Automatic control system and method of pre-tensioning prestress construction |
| CN112962977A (en) * | 2021-03-17 | 2021-06-15 | 安徽工业大学 | Intelligent adjusting device and method for tension consistency of steel wire rope |
-
2011
- 2011-12-30 CN CN 201120569335 patent/CN202658523U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526948A (en) * | 2013-10-24 | 2014-01-22 | 柳州黔桥工程材料有限公司 | Control method of intelligent tension system and intelligent tension system |
| CN103526948B (en) * | 2013-10-24 | 2015-12-02 | 柳州黔桥工程材料有限公司 | The control method of intelligent tensioning system and intelligent tensioning system |
| CN106049880A (en) * | 2016-05-26 | 2016-10-26 | 中铁二十三局集团轨道交通工程有限公司 | Automatic control system and method of pre-tensioning prestress construction |
| CN106049880B (en) * | 2016-05-26 | 2019-09-20 | 中铁二十三局集团轨道交通工程有限公司 | A kind of pretensioned prestressing construction automatic control system and method |
| CN112962977A (en) * | 2021-03-17 | 2021-06-15 | 安徽工业大学 | Intelligent adjusting device and method for tension consistency of steel wire rope |
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Granted publication date: 20130109 Effective date of abandoning: 20160504 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |