CN203392788U - Intelligent jack with automatic tool anchor - Google Patents
Intelligent jack with automatic tool anchor Download PDFInfo
- Publication number
- CN203392788U CN203392788U CN201320383859.6U CN201320383859U CN203392788U CN 203392788 U CN203392788 U CN 203392788U CN 201320383859 U CN201320383859 U CN 201320383859U CN 203392788 U CN203392788 U CN 203392788U
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- oil cylinder
- tool anchor
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- jack
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Abstract
The utility model discloses an intelligent jack with an automatic tool anchor and relates to prestressed concrete engineering construction equipment. The intelligent jack with the automatic tool anchor comprises an oil cylinder and a piston. A displacement sensor is fixedly arranged on the outer side of the oil cylinder. An end surface retaining ring is fixedly arranged on the outer end surface of the piston. A movable probe of the displacement sensor is connected with the end surface retaining ring through a shifting fork. The displacement sensor is connected to an input end of a data acquisition instrument controlled by a controller. The controller is connected with a display. A tool anchor plate is fixedly arranged at the outer end of the piston. Guide rods are fixedly arranged on the tool anchor plate. Movable ejector plates and return springs are sheathed on the guide rods. The intelligent jack with the automatic tool anchor has the advantages that a tensile load and a prestressing tendon elongation value in a prestress tensioning construction process can be automatically acquired, the data measuring accuracy and the construction efficiency can be effectively improved, the tool anchor can be automatically restored, and the labor intensity of construction personnel is relieved; tension stroke can be conveniently controlled and observed, and accordingly the pressure value and the prestressing tendon elongation can be accurately controlled according to requirements during construction, and tensioning force is guaranteed.
Description
Technical field
The utility model relates to prestressed concrete engineering preparation of construction technical field, especially a kind of construction equipment of prestressed stretch-draw operation.
Background technology
Along with China's expanding economy, prestressing technique has also obtained development and widespread use in bridge, road construction and Hydraulic and Hydro-Power Engineering at home, but prestressed construction technology and preparation of construction thereof are also continued to use traditional technique and equipment always.The quality control of prestressed reinforced concrete construction is to be undertaken by traditional tensioning construction equipment and technique substantially, but this form of construction work is because the factor of man's activity is a lot, is difficult to the quality of prestressed structure to carry out actv. control.Prestress jack is the crucial construction equipment of tensioning construction equipment, it is for prestressing tendons such as stretch-draw strands, existing prestress jack includes oil cylinder, one end of this oil cylinder is sealedly connected with punching sleeve, between oil cylinder and punching sleeve, be equipped with one hollow, the piston of oil cylinder is stretched out in outer end, and be equipped with for clamping the instrument anchor slab and the tool clamping piece that is contained in this instrument anchor slab taper hole of prestressing tendon the outer end of this piston; On oil cylinder, offer inlet nozzle A, when prestressing tendon stretching construction, when oil pump is from inlet nozzle A fuel feeding, piston is subject to the pressure-acting of fluid and produces relative motion with oil cylinder, the tool clamping piece that moveable anchor strip clamping steel strand outwards moves together, and prestressing tendon is extended, while arriving each measurement stress level, the artificial displacement with producing between steel ruler measurement and recording and analyses end and pressing plate, thereby the elongation of calculated prestressing force bundle; During the long bundle of stretch-draw prestressing force, jack need to fall two or more strokes ability stretch-draw conventionally to the proof stress designing, each stretch-draw is extended to after the end stroke of jack piston, oil pump is from oil return nozzle fuel feeding, jack piston backhaul, at this moment instrument anchor slab and tool clamping piece can be stayed as you were because there being gripping power, need to be by manually again jack, instrument anchor slab and tool clamping piece being in place after return piston stroke puts in place, to carry out the stretch-draw of next stroke, until prestressing tendon stretch-draw is to the proof stress of design.The weak point of this technology is: when 1, workmen measures prestressing tendon elongation with steel ruler, prestressing tendon stressed very large, survey crew from moveable anchor very close to, as ground tackle produces stripped thread or bursts situation, the safety of entail dangers to survey crew; While 2, constructing, every jack need to be measured and each people of record, and cost of labor is high, and constructing operation is inconvenient, and efficiency is low; 3, the data precision of manual measurement is low, even can misunderstand or misremember the situation of data.4, in the time need to falling the long bundle of the prestress stretching construction of two or more strokes, need to manually reinstall jack, instrument anchor slab and tool clamping piece, its labour intensity is large, and operating efficiency is low, has potential safety hazard.Up to the present, the problems referred to above are not all facilitated and are effectively solved.
Utility model content
The purpose of this utility model is to provide a kind of intelligent jack with automated tool anchor, this intelligent jack with automated tool anchor can solve existing stretching construction facility to be needed manual measurement piston elongation and reinstalls jack, moveable anchor, and the operating efficiency of existence is low, survey precision is low and security hidden trouble.
In order to address the above problem, the technical solution adopted in the utility model is: this intelligent jack with automated tool anchor includes oil cylinder and stretches out the piston outside described oil cylinder, be equipped with for clamping the instrument anchor slab and the tool clamping piece that is contained in this instrument anchor slab taper hole of prestressing tendon the outer end of described piston, described oil cylinder outside is fixed with displacement pickup, the outer face that described piston stretches out is fixed with end face baffle ring, and the movable gauge head of described displacement pickup is connected with described end face baffle ring by shift fork; Described displacement pickup is connected on the input end of a data collecting instrument of being controlled by controller, and described controller is connected with telltale; Described instrument anchor slab is fixedly installed in piston outer end, on described instrument anchor slab, be installed with along the pilot bar of the axial setting of described piston, on described pilot bar, be arranged with movable panel and retracing spring, described movable panel is placed between described tool clamping piece and described retracing spring.
In the technical scheme of the above-mentioned intelligent jack with automated tool anchor, technical scheme can also be more specifically: the pressure sensor of measuring inner chamber of cylinder block pressure is installed on described oil cylinder, and described pressure sensor accesses the input end of described data collecting instrument.
Further, described displacement pickup is connected and fixed on described oil cylinder by magnet base.
Owing to having adopted technique scheme, the utility model compared with prior art has following beneficial effect:
1, the pressure sensor that is provided for measuring the displacement pickup of piston displacement and measures cylinder cavity pressure on the oil cylinder of jack, can automatically measure and control elongation and the tensile load of the prestressing tendon of each stretch-draw, each sensor shows the respective data transfer of collection in controller after calculating on read-out, can effectively improve DATA REASONING precision and operating efficiency, the labour intensity that alleviates workmen, reduces costs.
2, do not need close-in measurement and observation, improved the safety of construction, and constructing operation is convenient.
3, can control easily and observe tentioning stroke, thus in construction the development length of control presssure value and prestressing tendon exactly as requested, guaranteed stretching force.
4,, when long prestressing tendon stretching construction, jack and moveable anchor can put in place by automated backhaul under the elastic force effect of retracing spring, and without manually reinstalling, have improved efficiency, have eliminated workmen's potential safety hazard.
5, displacement sensor is fixed on the outside of jack cylinder by the magnetic action of magnet base, can be convenient to dismounting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail:
The intelligent jack with automated tool anchor shown in Fig. 1 comprises jack and moveable anchor, jack mainly comprises oil cylinder 4, punching cover 5, piston 3, displacement pickup 7 and pressure sensor 17, punching cover 5 and piston 3 are coaxially arranged in oil cylinder 4, piston 3 is arranged between punching cover 5 and oil cylinder 4, the two ends of oil cylinder 4 be threaded respectively hold-down nut 1 and hold-down ring 9, between the inner end surface of hold-down nut 1 and piston 3, be provided with and hold-down nut 1, oil cylinder 4 inwalls and punching are overlapped the plug 2 of 5 outer wall close contacts, between punching cover 5 and oil cylinder 4 inwalls, be provided with the closing plate 8 with hold-down ring 9 phase clampings, piston 3 can stretch out outside oil cylinder 4 from the through hole of closing plate 8 and hold-down ring 9, position near plug 2 and closing plate 8 on oil cylinder 4 is respectively arranged with inlet nozzle A and the inlet nozzle B that is connected oil pump, and the oil-feed of controlling inlet nozzle A and inlet nozzle B by controller stretching out of control plunger 3 and resets, in oil cylinder 4 outsides, by magnet base 6, be fixed with displacement pickup 7, displacement pickup 7 is connected on the input end of the data collecting instrument of being controlled by controller, the outer face that piston 3 stretches out is fixed with end face baffle ring 10, and the movable gauge head of displacement pickup 7 is connected with end face baffle ring 10 by shift fork 11, on oil cylinder 4, be also provided with pressure sensor 17, the accommodation space of the probe of pressure sensor 17 is connected with the epitrochoidal chamber that oil cylinder 4 inwalls, plug 2 and piston 3 enclose formation, the input end of pressure sensor 17 access data Acquisition Instruments, controller is connected with telltale, controller carries out data acquisition by corresponding module and data collecting instrument to pressure sensor 17 and displacement pickup 7, the computation center of controller is is automatically analysed and compared and calculates this item number certificate, thereby obtain required relevant control load and the prestressing tendon stretch value of tensioning construction, and on telltale, intuitively demonstrate correlation values.Be equipped with for clamping the instrument anchor slab 12 and the tool clamping piece 13 that is contained in these instrument anchor slab 12 taper holes of prestressing tendon the outer end of piston 3, the periphery of instrument anchor slab 12 is provided with positioning step, instrument anchor slab 12 compresses this positioning step by end face baffle ring 10 and is fixed on piston 3 outer ends, uniform being fixed with along a plurality of pilot bars 16 of the axial setting of piston 3 on instrument anchor slab 12, on each pilot bar 16, be all arranged with retracing spring 15, pilot bar 16 outer end is provided with for limiting the limiting stopper of retracing spring 15, one movable panel 14 is sheathed on a plurality of pilot bars 16, movable panel 14 is placed between tool clamping piece 13 and retracing spring 15, on movable panel 14, offer the through hole that installs prestressing tendon.
When prestressing tendon stretching construction, oil pump is from inlet nozzle A to jack fuel feeding, the oil pressure that fluid enters epitrochoidal chamber formation produces axial thrusts to piston 3, it is stretched out outside oil cylinder 4, when piston 3 moves, drive and be arranged on the instrument anchor slab 12 on piston 3, tool clamping piece 13 and end face baffle ring 10 and shift fork 11 move thereupon, shift fork 11 pulls the movable gauge head of displacement pickup 7 to make the displacement readings of its generation produce corresponding variation, and the increase along with displacement, force value in epitrochoidal chamber also will increase, controller carries out data acquisition by data collecting instrument to pressure sensor 17 and displacement pickup 7, after meeting the requirements of elongation and tensile load, stretch-draw work completes, unloaded operation oil pressure, fluid makes piston 3 reset from oil return nozzle B to oil cylinder 4 fuel feeding, under the effect of retracing spring 15, tool clamping piece 13 puts in place with instrument anchor slab 12 and piston 3 backhauls, for stretch-draw work is next time prepared.In the process of above-mentioned stretching construction, the change conditions of related data can be observed from telltale in real time.
Claims (3)
1. the intelligent jack with automated tool anchor, include oil cylinder and stretch out the piston outside described oil cylinder, be equipped with for clamping the instrument anchor slab and the tool clamping piece that is contained in this instrument anchor slab taper hole of prestressing tendon the outer end of described piston, it is characterized in that: described oil cylinder outside is fixed with displacement pickup, the outer face that described piston stretches out is fixed with end face baffle ring, and the movable gauge head of described displacement pickup is connected with described end face baffle ring by shift fork; Described displacement pickup is connected on the input end of a data collecting instrument of being controlled by controller, and described controller is connected with telltale; Described instrument anchor slab is fixedly installed in piston outer end, on described instrument anchor slab, be installed with along the pilot bar of the axial setting of described piston, on described pilot bar, be arranged with movable panel and retracing spring, described movable panel is placed between described tool clamping piece and described retracing spring.
2. the intelligent jack with automated tool anchor according to claim 1, is characterized in that: the pressure sensor of measuring inner chamber of cylinder block pressure is installed on described oil cylinder, and described pressure sensor accesses the input end of described data collecting instrument.
3. the intelligent jack with automated tool anchor according to claim 1 and 2, is characterized in that: described displacement pickup is connected and fixed on described oil cylinder by magnet base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320383859.6U CN203392788U (en) | 2013-07-01 | 2013-07-01 | Intelligent jack with automatic tool anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320383859.6U CN203392788U (en) | 2013-07-01 | 2013-07-01 | Intelligent jack with automatic tool anchor |
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| Publication Number | Publication Date |
|---|---|
| CN203392788U true CN203392788U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320383859.6U Expired - Lifetime CN203392788U (en) | 2013-07-01 | 2013-07-01 | Intelligent jack with automatic tool anchor |
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| Country | Link |
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| CN (1) | CN203392788U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499653A (en) * | 2014-12-01 | 2015-04-08 | 柳州市桥厦工程管材有限公司 | Automatic tool anchor plate |
| CN105384103A (en) * | 2015-12-28 | 2016-03-09 | 湖南联智桥隧技术有限公司 | Displacement sensor used for tensioning jack |
| CN106049882A (en) * | 2016-08-10 | 2016-10-26 | 中冶建工集团有限公司 | Tool anchor clamp piece limit method capable of achieving intelligent prestress tensioning |
| CN106760609A (en) * | 2016-12-29 | 2017-05-31 | 华北水利水电大学 | Combination assembling correction formula pre-stress fibre sheet material tensioning equipment and its construction method |
| CN106986280A (en) * | 2017-01-25 | 2017-07-28 | 柳州泰姆预应力机械有限公司 | Card jack before the intelligence of direct dynamometry |
| CN109269884A (en) * | 2018-08-17 | 2019-01-25 | 武汉希萌科技有限公司 | A kind of prestressed stretch-draw preceding clip type jack and tool anchor arrangement |
| CN109267570A (en) * | 2018-10-09 | 2019-01-25 | 襄阳中铁宏吉工程技术有限公司 | A kind of moveable anchor of the direct exposed amount of measuring tool intermediate plate |
| CN110374335A (en) * | 2019-06-06 | 2019-10-25 | 中交第四航务工程局有限公司 | A kind of steel strand prestress method for stretching |
| CN110926939A (en) * | 2019-12-21 | 2020-03-27 | 郑州航空工业管理学院 | Steel bar strain force measuring device for machine-made sand prestressed concrete member |
| CN113512950A (en) * | 2021-05-13 | 2021-10-19 | 开封强力集团锚固技术股份有限公司 | Hydraulic clamping device for adjusting tension degree of steel strand and using method thereof |
-
2013
- 2013-07-01 CN CN201320383859.6U patent/CN203392788U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499653A (en) * | 2014-12-01 | 2015-04-08 | 柳州市桥厦工程管材有限公司 | Automatic tool anchor plate |
| CN105384103A (en) * | 2015-12-28 | 2016-03-09 | 湖南联智桥隧技术有限公司 | Displacement sensor used for tensioning jack |
| CN106049882A (en) * | 2016-08-10 | 2016-10-26 | 中冶建工集团有限公司 | Tool anchor clamp piece limit method capable of achieving intelligent prestress tensioning |
| CN106760609A (en) * | 2016-12-29 | 2017-05-31 | 华北水利水电大学 | Combination assembling correction formula pre-stress fibre sheet material tensioning equipment and its construction method |
| CN106760609B (en) * | 2016-12-29 | 2022-08-02 | 华北水利水电大学 | Combined assembly deviation-rectifying type prestressed fiber sheet tensioning device and construction method thereof |
| CN106986280A (en) * | 2017-01-25 | 2017-07-28 | 柳州泰姆预应力机械有限公司 | Card jack before the intelligence of direct dynamometry |
| CN109269884B (en) * | 2018-08-17 | 2021-08-06 | 武汉希萌科技有限公司 | Pre-clamping jack and tool anchor equipment for prestress tensioning |
| CN109269884A (en) * | 2018-08-17 | 2019-01-25 | 武汉希萌科技有限公司 | A kind of prestressed stretch-draw preceding clip type jack and tool anchor arrangement |
| CN109267570A (en) * | 2018-10-09 | 2019-01-25 | 襄阳中铁宏吉工程技术有限公司 | A kind of moveable anchor of the direct exposed amount of measuring tool intermediate plate |
| CN109267570B (en) * | 2018-10-09 | 2024-06-07 | 株洲时代新材料科技股份有限公司 | Tool anchor for directly measuring exposure of tool clamping piece |
| CN110374335A (en) * | 2019-06-06 | 2019-10-25 | 中交第四航务工程局有限公司 | A kind of steel strand prestress method for stretching |
| CN110374335B (en) * | 2019-06-06 | 2021-11-26 | 中交第四航务工程局有限公司 | Steel strand prestress tensioning method |
| CN110926939A (en) * | 2019-12-21 | 2020-03-27 | 郑州航空工业管理学院 | Steel bar strain force measuring device for machine-made sand prestressed concrete member |
| CN113512950A (en) * | 2021-05-13 | 2021-10-19 | 开封强力集团锚固技术股份有限公司 | Hydraulic clamping device for adjusting tension degree of steel strand and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 545112 Sifang Industrial Zone, Xinxing Industrial Park, Liujiang County, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee after: Liuzhou Qianqiao Technology Co.,Ltd. Address before: 545112 Sifang Industrial Zone, Xinxing Industrial Park, Liujiang County, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee before: LIUZHOU QIAN BRIDGE ENGINEERING MATERIALS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term |