CN102357929A - Rail slab stress tensioning system - Google Patents
Rail slab stress tensioning system Download PDFInfo
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- CN102357929A CN102357929A CN201110322307XA CN201110322307A CN102357929A CN 102357929 A CN102357929 A CN 102357929A CN 201110322307X A CN201110322307X A CN 201110322307XA CN 201110322307 A CN201110322307 A CN 201110322307A CN 102357929 A CN102357929 A CN 102357929A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 12
- 230000001360 synchronised effect Effects 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 22
- 238000012937 correction Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The invention provides a rail slab stress tensioning system and solves the problems that the existing rail slab tensioning system is not synchronous, has poor safety and requires high cost. The tensioning device comprises two pairs of tensioning cross beams, a die is arranged between each pair of tensioning cross beams, steel ribs at the front end and the rear end of a rail slab are connected with the tensioning cross beams, and hydraulic actuators are fixed at the left ends and the right ends of the inner sides of each pair of tensioning cross beams. A control system comprises a shift sensor, an oil pressure sensor, a control cabinet, a hydraulic source, a monitoring unit, a signal processing unit and a hydraulic control valve, the shift sensor and the oil pressure sensor are connected with the signal processing unit, the signal processing unit is connected with the monitoring unit and the hydraulic control valve, the hydraulic control valve is connected with the hydraulic actuators, the hydraulic source is connected with the monitoring unit and the hydraulic control valve, and the control cabinet is connected with the hydraulic source. If the system is not synchronous in the tensioning process, the system will automatically adjust oil pressure and tensions after synchronously adjusted. The cost is greatly reduced, and hidden safety danger is reduced.
Description
Technical field
The present invention relates to tensioning system, be specially a kind of track slab prestress tensioning system.
Background technology
Prestressing stretching technique in the track plate batch production process is the core of track plate quality control, the key of pre-stress integral stretch-draw and stretch-draw quality to depend on the safety of tensioning system with accurately.
Existing track plate field all is the tensioning system that has adopted former German Bo Ge company, stretch-draw again after this tensioning system needs the manual adjustment oil pressure to make it synchronously when asynchronous, and poor safety performance simultaneously, cost is higher.
Summary of the invention
The present invention is asynchronous for the tensioning system that solves existing track plate exists, poor safety performance and cost problem of higher, and a kind of track slab prestress tensioning system is provided.
The present invention adopts following technical scheme to realize: the track slab prestress tensioning system; Comprise tensioning equipment and control system; Tensioning equipment comprises the stretch-drawing beam that distributes before and after two couple who places on the pedestal; Be provided with some moulds that are placed with the track plate between every pair of stretch-drawing beam, the reinforcing bar of track plate rear and front end connects with corresponding stretch-drawing beam, and every pair of inboard right ends of stretch-drawing beam all is fixed with the other end and the fixing hydraulic actuator of body of wall; The control system comprises displacement transducer and oil pressure sensor, switch board, hydraulic power source, monitoring unit, signal processing unit and the hydraulic control valve that is installed on the hydraulic actuator; The output of displacement transducer and oil pressure sensor links to each other with the input of signal processing unit; Signal processing unit links to each other with monitoring unit; And the output of signal processing unit links to each other with the input of hydraulic control valve, and the output of hydraulic control valve links to each other with the input of hydraulic actuator, and hydraulic power source links to each other with monitoring unit; And the output of hydraulic power source links to each other with hydraulic control valve, and the output of switch board links to each other with the input of hydraulic power source.During operation,, and make system pressure be increased to operating pressure, judge through monitoring unit whether state such as pressure and temperature meets the requirements at first through switch board primer fluid potential source; Under the normal situation of system, the operator imports relevant parameter and motor pattern, sends the instruction of beginning stretch-draw then, and monitoring system is sent command signal, through signal processing unit, drives each hydraulic control valve events; Hydraulic oil drives the hydraulic actuator action, and will be installed on the displacement transducer on the hydraulic actuator, the signal feedback of oil pressure sensor is given signal processing unit, constitutes closed-loop control system, the control oil cylinder enables accurately to move; Adopt integral tension, and carry out synchronously at two pairs of stretch-drawing beam places of pedestal, in stretching process, each hydraulic actuator shows various kinematic parameters and state parameter at monitoring unit through signal processing unit in real time, the storage of the line data of going forward side by side; Monitoring unit detects the oil pressure of hydraulic jack in real time, and calculates exerting oneself of current system, when arriving the setting tension force of system; Monitoring system will be sent the signal of stop motion automatically, make system out of service, accomplish stretching process; Stretch-draw and put the speed of opening and all can set in advance through monitoring unit; And guarantee the synchronization accuracy of each oil cylinder through the Synchronization Control algorithm, when unusual (such as overproof, superpressure etc., asynchronous etc.) takes place hydraulic jack, monitoring unit will send the protection instruction automatically; System promptly stops; Each oil cylinder is with release immediately, and stop command also can directly be sent by the operator, and that the tensioning system that has overcome existing track plate exists is asynchronous, poor safety performance and cost problem of higher.
Reasonable in design of the present invention is reliable; In the stretching process as the stretch-draw again after the adjustment oil pressure makes it synchronously automatically of asynchronous system; Two production lines of cover system control simultaneously, cost significantly reduces, as the situation of tension reinforcing steel bar fracture of wire occurs; System can bounce back synchronously, reduces disturbance, reduction potential safety hazard to template.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the operation principle sketch map of control system among Fig. 1.
Among the figure: 1-stretch-drawing beam, 2-mould, 3-reinforcing bar, 4-hydraulic actuator.
The specific embodiment
The track slab prestress tensioning system; Comprise tensioning equipment and control system; Tensioning equipment comprises the stretch-drawing beam 1 that distributes before and after two couple who places on the pedestal; Be provided with some moulds 2 that are placed with the track plate between every pair of stretch-drawing beam 1, the reinforcing bar 3 of track plate rear and front end connects with corresponding stretch-drawing beam 1, and every pair of stretch-drawing beam 1 inboard right ends all is fixed with the other end and the fixing hydraulic actuator 4 of body of wall; The control system comprises displacement transducer and oil pressure sensor, switch board, hydraulic power source, monitoring unit, signal processing unit and the hydraulic control valve that is installed on the hydraulic actuator 4; The output of displacement transducer and oil pressure sensor links to each other with the input of signal processing unit; Signal processing unit links to each other with monitoring unit; And the output of signal processing unit links to each other with the input of hydraulic control valve, and the output of hydraulic control valve links to each other with the input of hydraulic actuator 4, and hydraulic power source links to each other with monitoring unit; And the output of hydraulic power source links to each other with hydraulic control valve, and the output of switch board links to each other with the input of hydraulic power source.In the practical implementation process, hydraulic actuator 4 is hydraulic jack, and inspection oil pipe, joint, servo valve, hydraulic control one-way valve, pressure sensor and each device place of Hydraulic Station do not have the leakage of oil point, and all power switches close a floodgate in the switch board, and built-in computer is opened automatically; Start each hydraulic actuator displacement of inspection and system pressure reading, whether warning message is normal; Hydraulic actuator starts on demand; Select the tensioning system button, overflow valve is devoted oneself to work, the pipeline pressurising, system's automatic setting benchmark oil cylinder displacement data is as threshold value, and memory, in stretching process, whenever selects to back to square one and all can get back to the threshold value of memory this time; System carries out oil cylinder displacement data Synchronous Processing, and this process time is fixing, may be about 2-10 minute, and can select unloading after synchronously or suspend and handle, treating that reinforcing bar all installs and check to press after errorless continues the stretch-draw button, gets into the initial tensioning program; In case the entering initial tensioning, system ejects on the basis of currency by predefined 20% displacement and synchronously, if ground tackle and reinforcing bar are all no problem, presses the continuation button, gets into whole stressing sequence; Oil cylinder advances to preset maximum stretching force and shift value synchronously, anxious do not stop or unloads if press in this step, and it will halt synchronously near terminal point and unload overflow valve; In a single day tensioning system is parked in terminal point, and ring washer must be loaded onto with prestissimo and fix with cylinder nut in the very first time, in case oil cylinder causes the oil cylinder retraction because of leakage conductance in the hydraulic control one-way valve; After above process finishes,, can use the manual fine-tuning function to adjust if find the improper or oil cylinder withdrawal of stretching force value; When needing the back sheet operation, by the button of backing to square one, the automatic crawl fine setting of system continues to keep behind the stretch-draw 3-4mm, and this moment, the work area operator need remove ring washer, and nut unclamps; Press the continuation button, system's synchronous automatically back rollback to threshold value stops and unloading automatically.Stretching process leaves it at that.
Each subsystem of oil cylinder synchronous error is all different, in case error surpass the minimax scope (± 0.2-0.5mm), synchronously good indication disappears.Synchronous good working order accounts for about 80% of total tentioning stroke during operate as normal.The maximum correction scope of system is arranged on 80mm, is mainly used in to prevent to surpass 0.125mm (wipe and hang the template demarcation strip) because of the undue deflection of stretch-draw platform causes the reinforcing bar horizontal displacement.Oil cylinder is unexpected of maximum correction scope, and system can unload once automatically.If find out the deflection reason, can reload and adjust.
If long time loading in the stretching process and oil cylinder displacement and force value do not have significant change, system stop to load automatically, the stretching process medium velocity can be adjusted at any time, and the system of whenever pressing is anxious to stop, and can cause unloading immediately.
Claims (1)
1. track slab prestress tensioning system; Comprise tensioning equipment and control system; It is characterized in that: tensioning equipment comprises the stretch-drawing beam (1) that distributes before and after two couple who places on the pedestal; Be provided with some moulds (2) that are placed with the track plate between every pair of stretch-drawing beam (1), the reinforcing bar (3) of track plate rear and front end connects with corresponding stretch-drawing beam (1), and the inboard right ends of every pair of stretch-drawing beam (1) all is fixed with the other end and the fixing hydraulic actuator (4) of body of wall; The control system comprises displacement transducer and oil pressure sensor, switch board, hydraulic power source, monitoring unit, signal processing unit and the hydraulic control valve that is installed on the hydraulic actuator (4); The output of displacement transducer and oil pressure sensor links to each other with the input of signal processing unit; Signal processing unit links to each other with monitoring unit; And the output of signal processing unit links to each other with the input of hydraulic control valve, and the output of hydraulic control valve links to each other with the input of hydraulic actuator (4), and hydraulic power source links to each other with monitoring unit; And the output of hydraulic power source links to each other with hydraulic control valve, and the output of switch board links to each other with the input of hydraulic power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110322307XA CN102357929A (en) | 2011-10-21 | 2011-10-21 | Rail slab stress tensioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110322307XA CN102357929A (en) | 2011-10-21 | 2011-10-21 | Rail slab stress tensioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102357929A true CN102357929A (en) | 2012-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110322307XA Pending CN102357929A (en) | 2011-10-21 | 2011-10-21 | Rail slab stress tensioning system |
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| Country | Link |
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| CN (1) | CN102357929A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369267A (en) * | 2014-10-30 | 2015-02-25 | 中铁三局集团有限公司 | Device and method for detecting deformation of tensioned cross beams of CRTS III two-way pretensioned prestressed track slab |
| CN106042168A (en) * | 2016-08-09 | 2016-10-26 | 中铁二十二局集团有限公司 | Parallel double-station manufacturing shop for CRTS III type pre-tensioning method track boards |
| CN108515611A (en) * | 2018-04-27 | 2018-09-11 | 天津银龙预应力材料股份有限公司 | A device is put and a device is put in sleeper tensioning in a kind of sleeper Fang Zhang mechanisms |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002065022A1 (en) * | 2001-02-14 | 2002-08-22 | Max Bögl Bauunternehmung GmbH & Co. KG | Method and pallet for the production of a precise pre-cast concrete piece |
| CN1865593A (en) * | 2006-05-05 | 2006-11-22 | 欧阳炎 | Bidirectional pretensioning method prestressed concrete railway board and assembly machine sets method production process |
| CN101380777A (en) * | 2007-08-09 | 2009-03-11 | 欧阳炎 | Bidirectional pre-tensioned rail plate long-surface pedestal production chain |
| CN101758557A (en) * | 2009-12-30 | 2010-06-30 | 中铁二十三局集团有限公司 | Rapid circulation producing method of track slabs |
| CN202241589U (en) * | 2011-10-21 | 2012-05-30 | 中铁十二局集团有限公司 | Track slab prestress tensioning system |
-
2011
- 2011-10-21 CN CN201110322307XA patent/CN102357929A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002065022A1 (en) * | 2001-02-14 | 2002-08-22 | Max Bögl Bauunternehmung GmbH & Co. KG | Method and pallet for the production of a precise pre-cast concrete piece |
| CN1865593A (en) * | 2006-05-05 | 2006-11-22 | 欧阳炎 | Bidirectional pretensioning method prestressed concrete railway board and assembly machine sets method production process |
| CN101380777A (en) * | 2007-08-09 | 2009-03-11 | 欧阳炎 | Bidirectional pre-tensioned rail plate long-surface pedestal production chain |
| CN101758557A (en) * | 2009-12-30 | 2010-06-30 | 中铁二十三局集团有限公司 | Rapid circulation producing method of track slabs |
| CN202241589U (en) * | 2011-10-21 | 2012-05-30 | 中铁十二局集团有限公司 | Track slab prestress tensioning system |
Non-Patent Citations (1)
| Title |
|---|
| 卢建中: "博格式轨道板预制关键技术探讨", 《铁道建筑技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369267A (en) * | 2014-10-30 | 2015-02-25 | 中铁三局集团有限公司 | Device and method for detecting deformation of tensioned cross beams of CRTS III two-way pretensioned prestressed track slab |
| CN106042168A (en) * | 2016-08-09 | 2016-10-26 | 中铁二十二局集团有限公司 | Parallel double-station manufacturing shop for CRTS III type pre-tensioning method track boards |
| CN108515611A (en) * | 2018-04-27 | 2018-09-11 | 天津银龙预应力材料股份有限公司 | A device is put and a device is put in sleeper tensioning in a kind of sleeper Fang Zhang mechanisms |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120222 |