CN201885697U - Automatic tension monitoring system for prestressed reinforcements - Google Patents
Automatic tension monitoring system for prestressed reinforcements Download PDFInfo
- Publication number
- CN201885697U CN201885697U CN2010205857687U CN201020585768U CN201885697U CN 201885697 U CN201885697 U CN 201885697U CN 2010205857687 U CN2010205857687 U CN 2010205857687U CN 201020585768 U CN201020585768 U CN 201020585768U CN 201885697 U CN201885697 U CN 201885697U
- Authority
- CN
- China
- Prior art keywords
- reinforcing steel
- presstressed reinforcing
- cylinder
- hydraulic jack
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses an automatic tension monitoring system for prestressed reinforcements, which comprises a hydraulic jack and an oil pump, the end of a cylinder of the hydraulic jack is provided with a working anchor unit for fixing prestressed reinforcements, the end of a piston of the hydraulic cylinder is provided with a tool anchor unit for applying tensioning force on the prestressed reinforcements, a pressure sensor is arranged between the tool anchor unit and the end of the piston of the hydraulic jack, and the end surface of the cylinder of the hydraulic jack, which is positioned at one side of the piston, is provided with a displacement sensor for monitoring the extension length of the piston. Since the system adopts the pressure sensor and the displacement sensor to replace the manual monitoring of the prior art, on one hand, the system avoids the problem of large errors caused by anthropic factors, on the other hand, the monitoring precision and monitoring speed of the system are greatly increased, and thereby the tensioning construction of the prestressed reinforcements can be quick, accurate and safe.
Description
Technical field
The utility model relates to the automated watch-keeping facility that the tension of prestressed tendon construction is used in a kind of civil engineering work.
Background technology
In the stretching construction of presstressed reinforcing steel, need the stress and strain of presstressed reinforcing steel all to adhere to specification.The main hydraulic jack that adopts of existing tension of prestressed tendon construction, during construction, the stretching force that the workmen applies by the oil pressure gauge control hydraulic jack of observing on the oil pump, the length that presstressed reinforcing steel is elongated need obtain with the ruler actual measurement by artificial, and the transmission work of information also is by manual record.The defective that this manually operated tension of prestressed tendon construction exists is:
1. control accuracy is low, and measurement result exists than mistake;
2. human factor influences the tension of prestressed tendon construction quality, and both personal error was big;
3. operating efficiency is lower:
4. real-time, the accuracy that information is transmitted in the work progress is relatively poor;
5. the quality monitoring difficulty is bigger when component inside or more hidden scope of operation stretching construction;
6. to supervise needed human resources bigger for construction quality, and quality-control cost is higher.
The utility model content
The purpose of this utility model is: provide a kind of presstressed reinforcing steel automatic stretch-draw monitoring device, to solve the problem that personal monitoring's precision is low, error is big in the prior art.
The technical scheme of the automatic stretch-draw monitoring device of presstressed reinforcing steel of the present utility model is: the automatic stretch-draw monitoring device of a kind of presstressed reinforcing steel, comprise hydraulic jack and oil pump, hydraulic jack is provided with the work anchor device that is used for fixing presstressed reinforcing steel towards an end of member, the other end of hydraulic cylinder is provided with the moveable anchor device that is used for presstressed reinforcing steel is applied stretching force, described hydraulic jack comprises cylinder body, one end sealing and fixing of cylinder body has cylinder cap, axially be equipped with inner cylinder tube in the central through hole of cylinder cap, sealing is equipped with annular piston in the ring cavity between inner cylinder tube and inboard wall of cylinder block, one end of piston extends axially the end face that passes the cylinder body other end, the two ends of corresponding ring cavity are installed with stretch-draw hydraulic fluid port and the backhaul hydraulic fluid port that is connected with described oil pump respectively on cylinder body, corresponding described presstressed reinforcing steel is provided with pressure transducer on described cylinder cap, the end face that described hydraulic jack cylinder body is positioned at piston one side is provided with the displacement transducer that is used to monitor the piston extension elongation, and described pressure transducer and displacement transducer are connected with computer control system by signal pickup assembly.
Be connected with the monitoring camera-shooting device on the described computer control system.
On described computer control system, be connected with wireless telemetry.
The utility model adopts pressure sensor and displacement transducer replace the personal monitoring of prior art, avoided on the one hand the big problem of error that causes because of human factor, its monitoring accuracy and monitoring velocity greatly improve on the other hand, make presstressed reinforcing steel stretching construction fast, accurately, in the construction, each sensor signal can be controlled the duty of hydraulic jack, the tension of prestressed tendon that can effectively avoid human factor the to cause accident that causes out of control automatically by computer information processing system.
Description of drawings
Fig. 1 is the structural representation of the automatic stretch-draw monitoring device of the utility model presstressed reinforcing steel specific embodiment.
Embodiment
The specific embodiment of the automatic stretch-draw monitoring device of presstressed reinforcing steel of the present utility model as shown in Figure 1, be fixed with reinforcement 3 in the member 17 and offer presstressed reinforcing steel duct 1, be equipped with presstressed reinforcing steel 15 in the duct 1, be provided with the work anchor device in the port in presstressed reinforcing steel duct 1, this work anchor device comprises and installs the anchor plate 2 that is fixed in the presstressed reinforcing steel duct 1, roof pressure is provided with anchor 4 on the outer face of anchor plate 2, each presstressed reinforcing steel 15 passes the corresponding anchor hole that offers on this anchor 4, the corresponding mooring anchor 5 that is used for the anchoring presstressed reinforcing steel that is provided with in the anchor hole, the outer face of anchor 4 is provided with the piggy-back anchor fixing apparatus 6 that is used for each mooring anchor 5 of roof pressure, roof pressure is provided with hydraulic jack on the outer face of piggy-back anchor fixing apparatus 6, this hydraulic jack comprises cylinder body 9, one end of cylinder body 9 has cylinder cap 8 by card key 7 sealing and fixing, the central shaft of cylinder cap 8 is to offering through hole, axially fixedly be equipped with inner cylinder tube 10 in the central through hole of cylinder cap 8, between the inwall of inner cylinder tube 10 and cylinder body 9, form the ring cavity ring, sealing is equipped with annular piston 12 in the chamber, one end of piston 12 extends axially the other end end face that passes cylinder body 9, the two ends of corresponding ring cavity are installed with stretch-draw hydraulic fluid port and the backhaul hydraulic fluid port that is connected with oil pump 16 respectively on the sidewall of cylinder body 9, roof pressure is provided with the moveable anchor device 13 that is used for tensioned prestressing bar 15 on the outer face of piston 12, and this moveable anchor device 13 is provided with provisional mooring anchor 14.On cylinder cap 8, be wholely set pressure transducer, cylinder body 9 is provided with the displacement transducer 11 that is used to detect the piston extension elongation away from the end face of the other end of cylinder cap 8, pressure transducer and displacement transducer 11 all are connected with the computer control system 19 that is used to control oil pump 16 work by signal pickup assembly 18, are connected with monitoring camera-shooting device 20, wireless telemetry 21 and internet 22 on the computer control system 19 respectively.
During construction, oil pump 16 drives hydraulic jack presstressed reinforcing steel 15 is applied stretching force, the strain data of presstressed reinforcing steel 15 is detected by displacement transducer 11 and obtains, its stress data is detected by pressure transducer and obtains, the data that pressure transducer and displacement transducer 11 monitorings obtain are input in the computing machine 19 by information collecting device 18, stress and strain that is obtained by 19 pairs of monitorings of computing machine and the preset value in the computing machine are compared, when stress reaches required value, when strain value does not reach, or strain value reaches required value, when stress value does not reach, computer control system 19 is reported to the police and is controlled oil pump 16 simultaneously by the surpassed distance warning system and quits work, and prevents that presstressed reinforcing steel is destroyed.In the time of construction, computer control system 19 connects monitoring camera-shooting device 20, wireless telemetry 21 and internet 22 respectively, tensioning equipment to presstressed reinforcing steel detects in real time, gather the duty of presstressed reinforcing steel and tensioning equipment in real time by shooting pick-up unit 20, in time note abnormalities, video information and data message carry out remote transmission by internet 22, and the staff can realize digital management and Long-distance Control by wireless telemetry 21 in Control Room.
Claims (3)
1. automatic stretch-draw monitoring device of presstressed reinforcing steel, comprise hydraulic jack and oil pump, hydraulic jack is provided with the work anchor device that is used for fixing presstressed reinforcing steel towards an end of member, the other end of hydraulic cylinder is provided with the moveable anchor device that is used for presstressed reinforcing steel is applied stretching force, it is characterized in that, described hydraulic jack comprises cylinder body, one end sealing and fixing of cylinder body has cylinder cap, axially be equipped with inner cylinder tube in the central through hole of cylinder cap, sealing is equipped with annular piston in the ring cavity between inner cylinder tube and inboard wall of cylinder block, one end of piston extends axially the end face that passes the cylinder body other end, the two ends of corresponding ring cavity are installed with stretch-draw hydraulic fluid port and the backhaul hydraulic fluid port that is connected with described oil pump respectively on cylinder body, corresponding described presstressed reinforcing steel is provided with pressure transducer on described cylinder cap, the end face that described hydraulic jack cylinder body is positioned at piston one side is provided with the displacement transducer that is used to monitor the piston extension elongation, and described pressure transducer and displacement transducer are connected with computer control system by signal pickup assembly.
2. the automatic stretch-draw monitoring device of presstressed reinforcing steel according to claim 1 is characterized in that, is connected with the monitoring camera-shooting device on the described computer control system.
3. the automatic stretch-draw monitoring device of presstressed reinforcing steel according to claim 1 is characterized in that, is connected with wireless telemetry on described computer control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205857687U CN201885697U (en) | 2010-11-01 | 2010-11-01 | Automatic tension monitoring system for prestressed reinforcements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205857687U CN201885697U (en) | 2010-11-01 | 2010-11-01 | Automatic tension monitoring system for prestressed reinforcements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201885697U true CN201885697U (en) | 2011-06-29 |
Family
ID=44183243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205857687U Expired - Lifetime CN201885697U (en) | 2010-11-01 | 2010-11-01 | Automatic tension monitoring system for prestressed reinforcements |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201885697U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304979A (en) * | 2011-08-03 | 2012-01-04 | 宁夏路桥工程股份有限公司 | Automatic control device for prestressing force tensioning device |
| CN102912988A (en) * | 2012-11-15 | 2013-02-06 | 湖南联智桥隧技术有限公司 | Tension system |
| CN103063174A (en) * | 2011-10-20 | 2013-04-24 | 上海力远计算机科技有限公司 | Wireless prestress tensile elongation measuring device |
| CN105675198A (en) * | 2016-04-05 | 2016-06-15 | 中国京冶工程技术有限公司 | Unbounded prestressing tendon tendon-cut rear end prestressing force detection device and detection method |
| CN106321563A (en) * | 2016-10-27 | 2017-01-11 | 哈尔滨理工大学 | Annular hydraulic cylinder provided with mechanical self-locking devices |
| CN108350698A (en) * | 2015-07-29 | 2018-07-31 | 首尔大学校产学协力团 | Post-stressed control system |
| CN112461408A (en) * | 2020-09-29 | 2021-03-09 | 河南牛帕力学工程研究院 | Prestressed tendon stress detection method |
| CN113008432A (en) * | 2021-02-05 | 2021-06-22 | 郑州东辰科技有限公司 | Effective stress detection method and effective stress detection device |
| CN115262981A (en) * | 2022-08-16 | 2022-11-01 | 中铁十五局集团有限公司 | Intelligent prestress tensioning construction device for house construction project |
-
2010
- 2010-11-01 CN CN2010205857687U patent/CN201885697U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304979A (en) * | 2011-08-03 | 2012-01-04 | 宁夏路桥工程股份有限公司 | Automatic control device for prestressing force tensioning device |
| CN103063174A (en) * | 2011-10-20 | 2013-04-24 | 上海力远计算机科技有限公司 | Wireless prestress tensile elongation measuring device |
| CN102912988A (en) * | 2012-11-15 | 2013-02-06 | 湖南联智桥隧技术有限公司 | Tension system |
| CN102912988B (en) * | 2012-11-15 | 2015-06-10 | 湖南联智桥隧技术有限公司 | Tension system |
| US10844619B2 (en) | 2015-07-29 | 2020-11-24 | Seoul National University R&Db Foundation | System for monitoring tension force of tendon in post-tensioning |
| CN108350698A (en) * | 2015-07-29 | 2018-07-31 | 首尔大学校产学协力团 | Post-stressed control system |
| CN105675198B (en) * | 2016-04-05 | 2018-06-22 | 中国京冶工程技术有限公司 | A kind of unbonded prestressing tendon rib cutting rear end prestress detection device and detection method |
| CN105675198A (en) * | 2016-04-05 | 2016-06-15 | 中国京冶工程技术有限公司 | Unbounded prestressing tendon tendon-cut rear end prestressing force detection device and detection method |
| CN106321563A (en) * | 2016-10-27 | 2017-01-11 | 哈尔滨理工大学 | Annular hydraulic cylinder provided with mechanical self-locking devices |
| CN112461408A (en) * | 2020-09-29 | 2021-03-09 | 河南牛帕力学工程研究院 | Prestressed tendon stress detection method |
| CN113008432A (en) * | 2021-02-05 | 2021-06-22 | 郑州东辰科技有限公司 | Effective stress detection method and effective stress detection device |
| CN113008432B (en) * | 2021-02-05 | 2022-07-29 | 郑州东辰科技有限公司 | Effective stress detection method and device |
| CN115262981A (en) * | 2022-08-16 | 2022-11-01 | 中铁十五局集团有限公司 | Intelligent prestress tensioning construction device for house construction project |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201885697U (en) | Automatic tension monitoring system for prestressed reinforcements | |
| CN201882850U (en) | Tensioning hydraulic jack with prestressed tendon | |
| CN104122201B (en) | A kind of armored concrete bond stress and sliding measurement apparatus | |
| CN107297703A (en) | A kind of system and method installed for bolt | |
| CN101603900B (en) | Self-balancing test device and method for directly testing axial tensile strength of early-age concrete | |
| CN205394821U (en) | Automatic straining means of prestressing force | |
| CN101943576A (en) | Detection device of engineering machinery steering angle | |
| CN104777096A (en) | Improved testing device and method for testing FRP-concrete interface property | |
| CN201269807Y (en) | Rolling bearing monitoring device | |
| US8863859B2 (en) | Method for determining the wear of a force-loaded linkage of an earth-working device | |
| CN203812076U (en) | Rotary drilling rig lifted rod monitoring system suitable for winch compression | |
| CN105181588A (en) | Device for determining adhesive property of steel bars and concrete in extruding manner and testing method of device | |
| CN201223881Y (en) | Apparatus for measuring tensioning force of fine rolling screw-thread steel | |
| CN207850806U (en) | A kind of universal testing machine of measurable elasticity modulus | |
| CN113899616A (en) | Oil and gas pipeline performance testing device and method | |
| CN101692014A (en) | Method for reverse pull detection of prestressing force under anchor of anchor cable | |
| CN103233472B (en) | The ram machine construction monitoring method of ram machine construction monitoring device | |
| CN105221172B (en) | A kind of real-time axle power Non-Destructive Testing calibration system of end-fixed bolter free segment and method | |
| CN205278001U (en) | Simple and easy pneumatic cylinder load efficiency detection device | |
| CN101614639B (en) | Creeper tread quality test device and test method thereof | |
| WO2023078334A1 (en) | Intelligent core drilling monitoring system having early-warning function and monitoring method | |
| CN201199213Y (en) | Microcomputer-controlled still-loading anchoring tester | |
| CN104990657A (en) | A rotary drilling rig power head torque measuring device | |
| CN215952834U (en) | Anchor rod anchoring force detection calibration device and detection device | |
| CN105651640A (en) | Full-automatic detection device of Shore durometer and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |