CN203392786U - Intelligent jack - Google Patents
Intelligent jack Download PDFInfo
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- CN203392786U CN203392786U CN201320383860.9U CN201320383860U CN203392786U CN 203392786 U CN203392786 U CN 203392786U CN 201320383860 U CN201320383860 U CN 201320383860U CN 203392786 U CN203392786 U CN 203392786U
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- oil cylinder
- piston
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- intelligent jack
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Abstract
The utility model discloses an intelligent jack and relates to prestressed concrete engineering construction equipment. The intelligent jack comprises an oil cylinder and a piston extending out of the oil cylinder; a displacement sensor is fixedly arranged at the outer side of the oil cylinder; the extending outer end face of the piston is fixedly provided with an end face baffle ring; a movable measurement head of the displacement sensor is connected with the end face baffle ring by a shifting fork; the displacement sensor is connected to the input end of a data acquisition instrument controlled by a controller; the controller is connected with a display. Compared with the prior art, the intelligent jack has the advantages that the tension load and the extension value of a prestressing tendon in the prestress tension construction process can be automatically acquired, data measurement accuracy and construction efficiency can be effectively improved and labor intensity of constructors is reduced; meanwhile, the tension stroke can be conveniently controlled and observed, so that in the construction, the pressure value and the extension length of the prestressing tendon are accurately controlled as required and the tensioning force is ensured.
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 intermediate plate 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, prestressing tendon is extended, while arriving each measurement stress level, manually with the displacement producing between steel ruler measurement and recording and analyses end and pressing plate, thus the elongation of calculated prestressing force bundle.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.The problems referred to above are not all effectively solved all the time.
Utility model content
The purpose of this utility model is to provide a kind of intelligent jack, and the efficiency of measuring prestressing tendon elongation when this intelligent jack can solve existing tensioning construction is low, precision is low and the problem that has potential safety hazard.
In order to address the above problem, the technical solution adopted in the utility model is: this intelligent jack, include oil cylinder and stretch out the piston outside described oil cylinder, 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.
In above-mentioned intelligent jack technical scheme, 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 oil cylinder, 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, 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:
Intelligent jack shown in Fig. 1 mainly comprises oil cylinder 4, punching cover 5, piston 3, displacement pickup 7 and pressure sensor 12, 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 oil return nozzle B that is connected oil pump, and the oil-feed of controlling inlet nozzle A and oil return 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 12, the accommodation space of the probe of pressure sensor 12 is connected with the epitrochoidal chamber that oil cylinder 4 inwalls, plug 2 and piston 3 enclose formation, the input end of pressure sensor 12 access data Acquisition Instruments, controller is connected with telltale, controller carries out data acquisition by corresponding module and data collecting instrument to pressure sensor 12 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.
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 moving, piston 3 drive the moveable anchor be arranged on piston 3 and end face baffle ring 10 and shift fork 11 to 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 12 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 fuel feeding, 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. an intelligent jack, include oil cylinder and stretch out the piston outside described oil cylinder, 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.
2. intelligent jack 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. intelligent jack 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 |
|---|---|---|---|
| CN201320383860.9U CN203392786U (en) | 2013-07-01 | 2013-07-01 | Intelligent jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320383860.9U CN203392786U (en) | 2013-07-01 | 2013-07-01 | Intelligent jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203392786U true CN203392786U (en) | 2014-01-15 |
Family
ID=49904333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320383860.9U Expired - Lifetime CN203392786U (en) | 2013-07-01 | 2013-07-01 | Intelligent jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203392786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106113251A (en) * | 2016-06-30 | 2016-11-16 | 河南鼎力杆塔股份有限公司 | Frock checked by a kind of jack |
-
2013
- 2013-07-01 CN CN201320383860.9U patent/CN203392786U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106113251A (en) * | 2016-06-30 | 2016-11-16 | 河南鼎力杆塔股份有限公司 | Frock checked by a kind of jack |
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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 |