CN103063175A - Hanging-type electric displacement measuring device - Google Patents
Hanging-type electric displacement measuring device Download PDFInfo
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- CN103063175A CN103063175A CN2012105550460A CN201210555046A CN103063175A CN 103063175 A CN103063175 A CN 103063175A CN 2012105550460 A CN2012105550460 A CN 2012105550460A CN 201210555046 A CN201210555046 A CN 201210555046A CN 103063175 A CN103063175 A CN 103063175A
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 84
- 238000005259 measurement Methods 0.000 claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- 238000004804 winding Methods 0.000 abstract description 3
- 239000000725 suspension Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- 230000005484 gravity Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 241001123248 Arma Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
本发明公开了一种悬吊式电动位移量测装置，包括电源转换器、位移电缆线盘、基准梁、配重块、钢绞线、滑动仪、位移传感器、量测仪、第一安全扣、定滑轮、电缆线和第二安全扣；电缆线一端缠绕在位移电缆线盘上，电缆线另一端穿过第二安全扣与量测仪的尾部连接，定滑轮固定连接在基准梁上，钢绞线绕在定滑轮上，钢绞线两端分别连接第一安全扣和第二安全扣，第一安全扣和配重块固定连接，第二安全扣和电缆线固定连接，滑动仪连接在基准梁上，滑动仪包含滑动块，滑动块的表面与位移传感器接触，位移传感器连接在基准梁；钢绞线穿过滑动块，并与滑动块固定连接。该位移量测装置可提高桩身位移量测精度，并且可以避免钢丝缠绕，应用安全可靠。
The invention discloses a suspension type electric displacement measuring device, which comprises a power converter, a displacement cable reel, a reference beam, a weight block, a steel strand, a sliding instrument, a displacement sensor, a measuring instrument, and a first safety buckle , fixed pulley, cable and second safety buckle; one end of the cable is wound on the displacement cable reel, the other end of the cable is connected to the tail of the measuring instrument through the second safety buckle, and the fixed pulley is fixedly connected to the reference beam. The steel strand is wound on the fixed pulley, the two ends of the steel strand are respectively connected to the first safety buckle and the second safety buckle, the first safety buckle is fixedly connected to the counterweight, the second safety buckle is fixedly connected to the cable, and the sliding instrument is connected On the reference beam, the sliding instrument includes a sliding block, the surface of the sliding block is in contact with the displacement sensor, and the displacement sensor is connected to the reference beam; the steel strand passes through the sliding block and is fixedly connected with the sliding block. The displacement measurement device can improve the displacement measurement accuracy of the pile body, can avoid steel wire winding, and is safe and reliable in application.
Description
Technical field
The invention belongs to displacement measuring means technical field in the pile foundation detection, specifically, relate to a kind of suspended type electric displacement measuring means.
Background technology
Stake inner displacement measures general rigid rod and two kinds of method for measurement of wire of adopting both at home and abroad at present.The former has been widely used since using always, and it need to extend the place, ground with rigid rod at pile body measured displacement place ornaments rigid rod, lays displacement transducer in masthead section and carries out the displacement measurement.But more and more longer even surpass 100m along with drilled pile, the inherent shortcoming of this method begins to manifest, and rigid rod causes displacement to have obvious distortion phenomenon in transmittance process because buckling phenomenon will appear in gravity and other a variety of causes.At present external improving one's methods is to adopt the rigid rod method of delivering in relays.Think that abroad the rigid rod transmission should control length about 20m, namely about every section long 20m of rigid rod, measure this section with sensor and move and be passed to ground, be total displacement with multistage is displacement superposed.Obviously, because the method is intrinsic, every section displacement counts the impact of sensor error in measurement, and the transmission of multistage overlay error is larger; Other its technique relative complex, Master Cost is higher, therefore, improves to some extent though the more traditional stake inner displacement of this method of testing measures, and uses at home lessly, still adopts one section traditional rigid rod method of testing.
The wire suspended measuring then needs to suspend a fixer in midair to test position with a steel wire, need simultaneously an other steel wire to control the fixing of part realization and piecing devices of stretching one's legs of fixer, because the Action of Gravity Field of fixer and transfer darker, two steel wires that separate easily twine, in case wrapping phenomena occurs, fixer will be stuck in the pillar, not only can't measure stake inner displacement, make troubles to test, and fixer also can't reclaim, cause certain economic loss.
Summary of the invention
Technical matters: technical matters to be solved by this invention is: a kind of suspended type electric displacement measuring means is provided, this displacement measuring means can improve the displacement measurement accuracy of pile body inside, especially for the ultra-long pile of length greater than 30 meters, and this displacement measuring means can be avoided steel wire winding, and application safety is reliable.
Technical scheme: for solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of suspended type electric displacement measuring means, it is characterized in that, this displacement measuring means comprises power supply changeover device, displacement cable disk, datum line beam, balancing weight, steel strand wires, slip instrument, displacement transducer, measurement instrument, the first safety buckle, fixed pulley, cable and the second safety buckle;
Power supply changeover device is positioned at by the displacement cable disk, one end of cable is wrapped on the displacement cable disk, the other end of cable passes the second safety buckle and is connected with the afterbody of measurement instrument, fixed pulley is fixedly connected on the datum line beam, steel strand wires are on fixed pulley, the steel strand wires two ends connect respectively the first safety buckle and the second safety buckle, the first safety buckle is fixedly connected with balancing weight, the second safety buckle is fixedly connected with cable, the slip instrument is fixedly connected on the datum line beam, the slip instrument comprises movably sliding shoe, and the surface of sliding shoe contacts with displacement transducer, and displacement transducer is connected to datum line beam by Magnetic gauge stand; Steel strand wires pass sliding shoe, and are fixedly connected with sliding shoe.
Beneficial effect: compared with prior art, technical scheme of the present invention has following beneficial effect:
1. reliability is strong.With respect to conventional rigid bar and wire measurement technology, suspended type electric displacement measuring means of the present invention adopts flexible collimation method test, the pre-buried pillar that contains the displacement location joint in formation of pile, during test, with sus-pension measurement instrument is put test position to appointment, displacement transducer is connected with the slip instrument, realizes the measurement of this place's upper and lower displacement.After test finishes, by a pawl electric retractable of switch control measurement instrument, be used for reclaiming.Measuring equipment of the present invention adopts electromagnetic potential shift cable line, can utilize the displacement pillar to detect, difficulty and workload when having reduced the load box installation that is caused by classic method guarantee into quality of pile, are particularly suitable for the measurement of overlength stake inner displacement.
2. measure precisely long service life.Suspended type electric displacement measuring means of the present invention does not need directly to connect load box or other precalculated positions, and measurement instrument and cable are fixed, and cable is single cable, has reduced the impact of equipment self on accuracy of measurement, makes measurement result more accurate.Simultaneously, the problems such as winding can not appear in single cable, have greatly improved the measurement corollary apparatus and have reused the life-span.
3 economy are strong.Suspended type electric displacement measuring means of the present invention is from the angle of electronic control, so that displacement measurement work is more easy, when guaranteeing measurement accuracy, saves time and laborsaving.Simultaneously, because the advantage of electronic control, so that it is reliable to measure process safety, the Correlated Case with ARMA Measurement device can be reused, and has saved the pile foundation testing cost.
Description of drawings
Fig. 1 is structural representation of the present invention.
Have among the figure: power supply changeover device 1, displacement cable disk 2, datum line beam 3, balancing weight 4, steel strand wires 5, slip instrument 6, displacement transducer 7, measurement instrument 8, the first safety buckle 9, fixed pulley 10, cable 11, sliding shoe 601, tailstock 801, a pawl 802, heavy cone 803, displacement location joint 12, pile body 13, the second safety buckle 14.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail.
As shown in Figure 1, a kind of suspended type electric displacement measuring means of the present invention comprises power supply changeover device 1, displacement cable disk 2, datum line beam 3, balancing weight 4, steel strand wires 5, slip instrument 6, displacement transducer 7, measurement instrument 8, the first safety buckle 9, fixed pulley 10, cable 11 and the second safety buckle 14.It is other that power supply changeover device 1 is positioned at displacement cable disk 2.Cable 11 comprises two wires and a steel twisted wire.One end of cable 11 is wrapped on the displacement cable disk 2, and the other end of cable 11 passes the second safety buckle 14 and is connected with the afterbody of measurement instrument 8.Fixed pulley 10 is fixedly connected on the datum line beam 3.Steel strand wires 5 are on fixed pulley 10.Steel strand wires 5 two ends connect respectively the first safety buckle 9 and the second safety buckle 14, the first safety buckles 9 are fixedly connected with balancing weight 4, and the second safety buckle 14 is fixedly connected with cable 11.Slip instrument 6 is fixedly connected on the datum line beam 3.Slip instrument 6 comprises movably sliding shoe 601.The surface of sliding shoe 601 contacts with displacement transducer 7.Displacement transducer 7 is connected on the datum line beam 3 by Magnetic gauge stand.Steel strand wires 5 pass sliding shoe 601, and are fixedly connected with sliding shoe 601.
Further, described measurement instrument 8 comprises tailstock 801, a pawl 802, heavy cone 803, pawl connecting rod and electromagnet, tailstock 801 is provided with bolt hole, the bolt hole of tailstock 801 is connected with cable 11 by lifting bolt, tailstock 801 is connected to the end of heavy cone 803, and a pawl 802 is hinged on the sidewall of heavy cone 803, and electromagnet is arranged in the inner chamber of heavy cone 803, prop up pawl 802 and connect an electromagnet by a pawl connecting rod, electromagnet is connected with cable 11.As preferred version, described pawl 802 is two, and is symmetrically distributed on the sidewall of heavy cone 803.When electromagnet was not switched on, a pawl 802 opened naturally because of gravity and spring action.When electromagnet was switched on, a pawl connecting rod moved upward, and regained thereby drive a pawl 802.
The principle of work of the suspended type electric displacement measuring means of said structure is: flexible cable 11 is by fixed pulley 10 and balancing weight 4, because Action of Gravity Field keeps tensile state.Flexible cable 11 1 ends are fixed on the measurement instrument 8, and measurement instrument 8 is positioned at pile body inside.It opens and closure a pawl 802 of measurement instrument 8 by power supply changeover device 1 control, is being embedded on the displacement location joint 12 of pile body 13 so that a pawl 802 is embedded to.Like this, the mobile flexible cable 11 that drives of pile body 13 is synchronized with the movement, thereby reaches the purpose of transmitting displacement.
The installation process of the suspended type electric displacement measuring means of said structure is: at first, the lifting bolt of one end of cable 11 is connected in the bolt hole of measurement instrument 8, cable 11 is connected with electromagnet in the measurement instrument 8, and the other end of cable 11 walked around the second safety buckle 14, cable 11 is wrapped on the displacement cable disk 2; Because of Action of Gravity Field, cable between the second safety buckle 14 and measurement instrument 8 11 keeps tensioning states, thus below the second safety buckle 14 with capel with cable 11 fastenings, avoid cable 11 to fall down always; Then, fixed pulley 10 and slip instrument 6 are separately fixed on the datum line beam 3, one end of steel strand wires 5 passes slip instrument 6, steel strand wires 5 are fixedly connected with sliding shoe 601, the other end of steel strand wires 5 is walked around fixed pulley 10, with the first safety buckle 9 and the second safety buckle 14 respectively with the two ends bind of steel strand wires 5, balancing weight 4 is hung on this first safety buckle 9 again; Then, the output port of power source of power supply changeover device 1 is connected with the power input mouth of displacement cable disk 2, plugged, a pawl 802 is contraction state, utilizes displacement cable disk 2 to discharge cable 11, measurement instrument 8 is placed in the pile body 13, at last, when measurement instrument 8 arrives displacement location joint 12, powered-down, prop up pawl 802 and naturally open, and the end of a pawl 802 is embedded to the bottom surface at displacement locator sub 12.
The course of work of the suspended type electric displacement measuring means of above-mentioned structure is: before the test, behind pile body 13 pore-formings, to sink together with pillar and the steel reinforcement cage of displacement location joint 12, displacement location joint 12 is arranged on requirement peg body 13 internal displacement places, again casting concrete pile.During test, pile body 13 is applied external force, when pile body 13 moved downward, by being embedded to the pawl 802 on displacement locator sub 12, measurement instrument 8 also moved downward thereupon; When pile body 13 moved upward, because the dynamic balance effect between balancing weight 4 and the safety buckle 9, balancing weight 4 moved down, and measurement instrument 8 moves up.That is to say, measurement instrument 8 is along with pile body 13 is mobile in the same way.The movement of measurement instrument 8 also can drive the synchronizing moving of steel strand wires 5.Because steel strand wires 5 are fixedly connected with sliding shoe 601 on the slip instrument 6, so sliding shoe 601 is also mobile in the same way with measurement instrument 8.Like this, the displacement transducer 7 that contacts with sliding shoe 601 is also thereupon mobile.Displacement transducer 7 is delivered to the displacement information of its measurement in the relevant device, can show the displacement of pile body 13.Measure and finish, when needing to reclaim measurement instrument 8, output port of power source with power supply changeover device 1 is connected with the power input mouth of displacement cable disk 2 first, the control power supply of output electromagnet, after the electromagnet energising, prop up the pawl connecting rod and drive in a pawl 802 withdrawal grooves, then utilize displacement cable disk 2 to reclaim cables 11, measurement instrument 8 is enhanced from the stake hole.
Claims (4)
1. suspended type electric displacement measuring means, it is characterized in that, this displacement measuring means comprises power supply changeover device (1), displacement cable disk (2), datum line beam (3), balancing weight (4), steel strand wires (5), slip instrument (6), displacement transducer (7), measurement instrument (8), the first safety buckle (9), fixed pulley (10), cable (11) and the second safety buckle (14);
It is other that power supply changeover device (1) is positioned at displacement cable disk (2), one end of cable (11) is wrapped on the displacement cable disk (2), the other end of cable (11) passes the second safety buckle (14) and is connected with the afterbody of measurement instrument (8), fixed pulley (10) is fixedly connected on the datum line beam (3), steel strand wires (5) are on fixed pulley (10), steel strand wires (5) two ends connect respectively the first safety buckle (9) and the second safety buckle (14), the first safety buckle (9) is fixedly connected with balancing weight (4), the second safety buckle (14) is fixedly connected with cable (11), slip instrument (6) is fixedly connected on the datum line beam (3), slip instrument (6) comprises movably sliding shoe (601), the surface of sliding shoe (601) contacts with displacement transducer (7), and displacement transducer (7) is connected to datum line beam (3) by Magnetic gauge stand; Steel strand wires (5) pass sliding shoe (601), and are fixedly connected with sliding shoe (601).
2. according to suspended type electric displacement measuring means claimed in claim 1, it is characterized in that, described measurement instrument (8) comprises tailstock (801), prop up pawl (802), heavy cone (803), prop up pawl connecting rod and electromagnet, tailstock (801) is provided with bolt hole, the bolt hole of tailstock (801) is connected with cable (11) by lifting bolt, tailstock (801) is connected to the end of heavy cone (803), propping up pawl (802) is hinged on the sidewall that weighs cone (803), electromagnet is arranged in the inner chamber of heavy cone (803), prop up pawl (802) and connect an electromagnet by a pawl connecting rod, electromagnet is connected with cable (11).
3. according to suspended type electric displacement measuring means claimed in claim 2, it is characterized in that, described pawl (802) is two, and is symmetrically distributed on the sidewall of heavy cone (803).
4. according to suspended type electric displacement measuring means claimed in claim 1, it is characterized in that, described cable (11) comprises two wires and a steel twisted wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555046.0A CN103063175B (en) | 2012-12-19 | 2012-12-19 | Hanging-type electric displacement measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555046.0A CN103063175B (en) | 2012-12-19 | 2012-12-19 | Hanging-type electric displacement measuring device |
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| CN103063175A true CN103063175A (en) | 2013-04-24 |
| CN103063175B CN103063175B (en) | 2014-03-12 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471543A (en) * | 2013-09-17 | 2013-12-25 | 鞍山易兴自动化工程有限公司 | Spiral gas holder height indicator and using method thereof |
| CN105509683A (en) * | 2014-09-22 | 2016-04-20 | 贵州中建建筑科研设计院有限公司 | Displacement measuring device used for self-balance pile testing method |
| CN110260754A (en) * | 2019-07-12 | 2019-09-20 | 浙江欧感机械制造有限公司 | Electronic drag-line displacement detector |
| CN111811690A (en) * | 2020-06-07 | 2020-10-23 | 广东韶钢松山股份有限公司 | Automatic temperature measurement sampling device of robot and control system thereof |
| CN112233530A (en) * | 2020-11-10 | 2021-01-15 | 永祺科技检测股份有限公司 | Single-column suspension device for foundation pile self-balancing static load test mechanism demonstration |
| CN113804719A (en) * | 2020-06-16 | 2021-12-17 | 维斯克凡科技（苏州）有限公司 | Device and test method for measuring thermal shrinkage of collagen packaging material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471543A (en) * | 2013-09-17 | 2013-12-25 | 鞍山易兴自动化工程有限公司 | Spiral gas holder height indicator and using method thereof |
| CN105509683A (en) * | 2014-09-22 | 2016-04-20 | 贵州中建建筑科研设计院有限公司 | Displacement measuring device used for self-balance pile testing method |
| CN105509683B (en) * | 2014-09-22 | 2020-04-24 | 贵州中建建筑科研设计院有限公司 | Displacement measuring device for self-balancing pile testing method |
| CN110260754A (en) * | 2019-07-12 | 2019-09-20 | 浙江欧感机械制造有限公司 | Electronic drag-line displacement detector |
| CN111811690A (en) * | 2020-06-07 | 2020-10-23 | 广东韶钢松山股份有限公司 | Automatic temperature measurement sampling device of robot and control system thereof |
| CN113804719A (en) * | 2020-06-16 | 2021-12-17 | 维斯克凡科技（苏州）有限公司 | Device and test method for measuring thermal shrinkage of collagen packaging material |
| CN112233530A (en) * | 2020-11-10 | 2021-01-15 | 永祺科技检测股份有限公司 | Single-column suspension device for foundation pile self-balancing static load test mechanism demonstration |
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| CN103063175B (en) | 2014-03-12 |
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