CN207211772U - A kind of prestress wire intelligent tensioning device - Google Patents
A kind of prestress wire intelligent tensioning device Download PDFInfo
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- CN207211772U CN207211772U CN201721193827.4U CN201721193827U CN207211772U CN 207211772 U CN207211772 U CN 207211772U CN 201721193827 U CN201721193827 U CN 201721193827U CN 207211772 U CN207211772 U CN 207211772U
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Abstract
A kind of prestress wire intelligent tensioning device, including the tensioning equipment of concrete component both sides is arranged on, tensioning equipment is connected with intelligent tensioning instrument, and intelligent tensioning instrument is connected by being wirelessly transferred with computer master control system；The tensioning equipment includes anchor structure, jack, the anchor structure includes the cup-shaped anchor plate being arranged in concrete component, cup-shaped anchor plate is externally provided with centering plate, backing plate, backing plate is externally provided with mount structure supporting plate, lockset is provided between mount structure supporting plate and backing plate, it is correspondingly provided with the cup-shaped anchor plate, centering plate, backing plate and lockset and steel strand wires quantity and position identical hole, steel strand wires are fixed after passing through cup-shaped anchor plate, centering plate, backing plate and lockset, and lockset opposite side is fixed with jack.A kind of prestress wire intelligent tensioning device provided by the utility model, by two sets of intelligent tensioning systems, ensure that tensioning construction quality meets specification and design requirement.
Description
Technical field
Tensioning equipment is the utility model is related to, especially a kind of prestress wire intelligent tensioning device.
Background technology
At present, prestress tensioning equipment is substantially made up of electric oil pump, stretch-draw jack and its mating accessory.Tensioning
During construction, by electric oil pump to stretch-draw jack fuel feeding, jack piston driving instrument anchor drives steel strand wires elongation to beam body
Apply prestressing force, by the pressure gauge indicating value on oil pump come the load for the steel strand wires that convert, jack piston is measured using Steel Ruler
Stroke calculates the elongation of steel strand wires, when needing both ends either more point symmetries, synchronous tension using propaganda directed to communicate, sign language or right
Say that the modes such as machine realize cooperating, so cause in prestress engineering construction in the prevalence of " control accuracy is poor, efficiency of construction
Low and quality management is difficult " the problems such as.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of prestress wire intelligent tensioning device, realizes
Prestressed stretch-draw overall process is intelligent, ensures that bridge prestress stretching construction quality meets specification and design requirement.Also drop in addition
It is low that external part steel strand wires length is required.
In order to solve the above technical problems, technical scheme is used by the utility model：
A kind of prestress wire intelligent tensioning device, including it is arranged on the tensioning equipment of concrete component both sides, tensioning
Equipment is connected with intelligent tensioning instrument, and intelligent tensioning instrument is connected by being wirelessly transferred with computer master control system；
The tensioning equipment includes anchor structure, jack, and the anchor structure includes being arranged in concrete component
Cup-shaped anchor plate, cup-shaped anchor plate are externally provided with centering plate, backing plate, and backing plate is externally provided with mount structure supporting plate, mount structure supporting plate with
Lockset is provided between backing plate, is correspondingly provided with the cup-shaped anchor plate, centering plate, backing plate and lockset and steel strand wires quantity and position
Identical hole is put, steel strand wires are fixed after passing through cup-shaped anchor plate, centering plate, backing plate and lockset, and lockset opposite side is consolidated with jack
It is fixed.
The jack is connected by oil pipe with the oil pump in intelligent tensioning instrument, and the output shaft of oil pump and variable-frequency motor connects
Connect；The jack upper end is provided with the pressure sensor for being used for gathering jack cylinder pressure value and extended for gathering steel strand wires
The displacement transducer of amount or retraction value, variable-frequency motor, pressure sensor, displacement transducer pass through signal wire and intelligent tensioning instrument
In slave computer connection, slave computer wirelessly conveys with computer master control system and is connected.
The lockset includes being fixed on body on backing plate, in body positioning slip have a card case, in card case on have limit
Face position is provided with taper mounting groove in the same direction on position block, tension rod, wherein limited block, body, is provided with taper mounting groove multiple
Cone-shaped clip, cone-shaped clip upper end are detachably connected by spring and the latch plate on taper mounting groove.
The latch plate is circumferentially with three projections, and corresponding taper mounting groove upper end is provided with adaptable neck.
The intermediate plate inner side mounting thread, the thread form section of screw thread are triangle, and the two sides at crest angle are towards taper
Intermediate plate miner diameter end is wedge surface, is pawl face towards cone-shaped clip bigger diameter end.
A kind of prestress wire intelligent tensioning device of the utility model, there is following technique effect：
1）, by setting two independent force measurement systems respectively in concrete component both sides, system sensor is real-time
Steel strand wires data are gathered, computer is fed back to, calculates elongation automatically, check elongation error in time whether within ± 6%,
Realize stress and elongation " dual control ".The cable tensios control equipment so mutually corrected, allow application prestressing force force value error model
Enclose and narrow down to ± 1% by ± the 10% of traditional tensioning process.
2）, by setting process, two or more jack of a computer controlled automatic simultaneously, synchronous symmetrical prestressing force
Tensioning, ensure rate of loading, dead time, hold lotus time etc. and meet code requirement, and can be held automatically during lotus is held
Continuous ftercompction, the common quality defect of effective prestress deficiency is avoided, ensure that bridge prestress stretching construction quality meets specification and set
Meter requires.
3）, traditional Traditional Man tensioning need 4 bit manipulation personnel operation simultaneously, annual labour cost be 150*4*365=
219000 yuan, and the operating personnel of intelligent tensioning, directly by intelligent tensioning instrument operation, labour cost is 135 yuan/day, and can only
Tensioning only needs 2 bit manipulation personnel operation simultaneously, and annual labour cost is 135*2*365=98550 yuan, annual to save labour cost about
120000 yuan.
4）, by setting U-shaped body and card case, on body and card case installation can automatically reset cone-shaped clip, this
Sample had both facilitated the observation in later stage stretching process to adjust, while was also beneficial to change.And the part-structure is preposition, it is fixed not only to facilitate
Position, Fast Installation, steel strand difficulty is reduced, for steel strand wires are sequentially passed through into punching jack, anchor structure originally relatively,
The prestressing steel wire bunch greatlyd save, it is very convenient for the shorter steel tendon of overhang.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples：
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the schematic diagram of tensioning equipment in the utility model.
Fig. 3 is the partial schematic diagram at A in Fig. 2.
Fig. 4 is the top view after latch plate installation.
In figure：Tensioning equipment 1, intelligent tensioning instrument 2, computer master control system 3, anchor structure 4, jack 5, cup-shaped anchor
Backing plate 6, centering plate 7, backing plate 8, mount structure supporting plate 9, lockset 10, body 11, card case 12, limited block 13, tension rod 14, taper
Mounting groove 15, cone-shaped clip 16, spring 17, latch plate 18, projection 19.
Embodiment
As shown in Figure 1-2, a kind of prestress wire intelligent tensioning device, including it is arranged on of concrete component both sides
Equipment 1 is drawn, tensioning equipment 1 is connected with intelligent tensioning instrument 2, and intelligent tensioning instrument 2 is by being wirelessly transferred and computer master control system
3 connections.
The tensioning equipment 1 includes anchor structure 4, jack 5.
The anchor structure 4 includes cup-shaped anchor plate 6, and cup-shaped anchor plate 6 is arranged in concrete component by spiral bar.
The small top end opening of the bottom opening of cup-shaped anchor plate 6 is big.Be provided with cup-shaped anchor plate 6 with steel strand wires quantity and position identical hole,
More steel wire bundle frictions, winding can be avoided for relatively conventional hollow anchor plate, while ensures the intensity of the structure.In cup
The top end face of shape anchor plate 6 is provided with locating slot, and centering plate 7 is arranged in locating slot.It is taper that the front end of centering plate 7, which is worn at threaded hole of steel,
Structure, it is interior to be provided with the hole relative with cup-shaped anchor plate 6.The aperture of centering plate 7 so twists less times greater than steel strand wires diameter with respect to steel
Resistance is smaller when line moves.When needing to install backing plate 8, lockset 10, centering plate 7 can be slided to steel strand wires termination, due to centering
Steel strand wires so can quickly and accurately imported into the hole of corresponding plate to the positioning action of steel strand wires, solve steel by plate 7
The problem of twisted wire contraposition difficulty needs to align one by one, improves operating efficiency.The side of centering plate 7 is backing plate 8, and the peripheral hardware of backing plate 8 is framed
Structural support plate 9（Mount structure supporting plate 9 is hinged the locking of other end bolt by left and right two parts, collectively form inner hollow and only
Only one end open structure）, lockset 10, the cup-shaped anchor plate 6, centering plate 7, pad are provided between mount structure supporting plate 9 and backing plate 8
Be correspondingly provided with plate 8 and lockset 10 with steel strand wires quantity and position identical hole, so both avoided each wire and intersected
Abrasion, winding, while cause each steel strand wires keep level state, accurate positioning, uniform force, avoid producing mistake because of inclination
Difference.Steel strand wires are fixed after passing through cup-shaped anchor plate 6, centering plate 7, backing plate 8 and lockset 10, and the opposite side of lockset 10 is solid with jack 5
It is fixed.Locked by lockset 10, tensioning is carried out using jack 5.
The jack 5 is connected by oil pipe with the oil pump in intelligent tensioning instrument 2, and the output shaft of oil pump and variable-frequency motor connects
Connect；The upper end of jack 5 is provided with the pressure sensor for being used for gathering jack cylinder pressure value and stretched for gathering steel strand wires
The displacement transducer of long amount or retraction value, variable-frequency motor, pressure sensor, displacement transducer pass through signal wire and intelligent tensioning
Slave computer connection in instrument 2, wirelessly conveying connects slave computer with computer master control system 3.
The lockset 10 includes the body 11 being fixed on backing plate 8, has card case 12 in body 11, the both sides of card case 12 are provided with waist
Hole, corresponding body 11 are provided with bayonet lock, and bayonet lock passes through waist hole so that card case 12 along the side wall of body 11 position slide and it is spacing
（It is not drawn at this in figure）.Body 11, card case 12 are U-shaped board, front and rear insertion.It is so convenient to observe when mounted.In card case 12
It is spacing by the spacing ring of the bottom of card case 12 provided with stepped cylindrical limited block 13, tension rod 14, the lower end of limited block 13.In limited block
13rd, face position is provided with taper mounting groove 15 in the same direction on body 11, and multiple independent cone-shaped clips are provided with taper mounting groove 15
16, cone-shaped clip 16 is close at the axis of taper formation through hole, through hole be available for steel wire by and lock.On cone-shaped clip 16
End is detachably connected by spring 17 with the latch plate 18 on taper mounting groove 15.It can so be automatically reset after not stressing, side
Just wear steel wire next time and lock again.And latch plate 18 is circumferentially with three projections 19, the corresponding upper end of taper mounting groove 15 with
External world's connection, taper mounting groove 15 is interior to be provided with annular groove, and convenient to place latch plate 18, the annular groove upper end is provided with three flutings, slotted
It is in communication with the outside.Because the diameter of taper mounting groove 15 is more than the internal diameter of latch plate 18, while it is less than latch plate external diameter.Work as torsional spring
Plate 18, makes three projections 19 with latch plate 18 being taken out during three fluting faces.Spring or cone-shaped clip can so be facilitated
Replacing or checked when a problem occurs.
The inner side mounting thread of intermediate plate 16, the thread form section of screw thread is triangle, and the two sides direction at crest angle is bored
Clevis piece miner diameter end is wedge surface, is pawl face towards cone-shaped clip bigger diameter end.Thus steel wire can be both engaged.
Installation process：
1）, preparation：Arrange cable tensios control station.Control station is selected it is determined that beam slab side to be tensioned, it is desirable to is not influenceed
Site operation, control station energy trouble free service, without sunlight direct projection, it just can conveniently see the two of beam slab without movement in stretching process
End, can connect to 220V power supplys to ensure not power down in computer stretching process, cancels the screen protection of computer, close hard disk automatically
Etc. function, control software is installed.Tensioning instrument main frame and Special jack are arranged in stretching end, and make it to protect with control station
Hold direct line of sight state.
2）, electric wire connection：Three phase mains is connected by professional electrician（Connect three live wires）, and connect ground wire.Connection electricity
It is whether normal with general-purpose table look-up power supply after line（Normal voltage operation scope is 380 positive and negative 15%, and go beyond the scope to protect automatically
Shield, instrument automatic pause）.Forbid to make electric wire connection operation under electriferous state.
3）, oil pipe connection：Go through whether oil nozzle and joint have impurity, it is necessary to by its wiped clean, it is ensured that oil inlet pipe
It is not confused with oil return pipe.Oil return pipe one section away from beam slab of jack when the installation site of jack is tensioning, i.e., it is very heavy
Top is mounted with one end of black safety valve；Oil pipe junction must use copper backing to prevent leak-stopping oil.The protection spring of oil pipe should
Extend oil pipe service life when being sentenced close to oil nozzle.
4）, Special jack, antenna, data wire installation：After installing the anchoring pieces such as limiting plate, lifting is special very heavy
Top, jack is connected with tension rod.Jack must use steel wire rope lifting to ensure safety.Then tensioning instrument and thousand is connected
The data wire on jin top, the hole of tensioning one finishes, must not pull the data wire and be used for jack for moving.In order that steel strand wires stress is equal
It is even, comb should be used to compile lashing technique, next install instrument antenna.
Operation principle：In tensioning, the nut on jack jacking tension rod 14 top, by tension rod 14, card case 12 and
Column limited block 13 acts on to the right so that prestressing steel wire bunch is deposited relative to left movement.Because the madial wall of cone-shaped clip 16 is present
Screw thread, the thread form section of screw thread are triangle, the two sides at crest angle towards cone-shaped clip miner diameter end be wedge surface, towards tapered clamp
Piece bigger diameter end is pawl face, therefore steel wire can be engaged.Steel wire pulls cone-shaped clip 16 to the left, and cone-shaped clip is formed logical
Hole is less and less, so as to which more wedge is tighter, completes locking, due to being equipped with intermediate plate in body 11 and column limited block 13, therefore can
Realize that twice are locked, avoid stripped thread.Load is applied at left and right sides of beam body by punching jack after locking, prestressing force is intelligently opened
Pull system is using stress as Con trolling index, and elongation error is as check and correction index.Computer master control system 3 passes through pressure sensing
Device, displacement transducer gather the operating pressure of every jack 5 and the elongation of steel strand wires（Containing amount of recovery）Etc. data, and in real time
Transfer data to computer master control system 3 and carry out analysis judgement, while pumping plant reception system instructs, and adjusts variable-frequency electric in real time
Machine running parameter, so as to realize the rotating speed of high-precision real-time monitoring Oil pump electrical machinery, realize the real-time essence of stretching force and loading velocity
Really control.Computer master control system 3 sends instruction always according to default program, by main frame, every equipment of Synchronization Control it is every
One mechanical action, is automatically performed whole stretching process.
Pressure sensor is responsible for the pressure value of collection jack cylinder in stretching process, and control master is transmitted to by slave computer
Machine, main frame are converted into value of thrust according to calibrating parameters.
Displacement transducer is responsible for collection steel strand wires elongation in stretching process（Amount of recovery）Value, control is transmitted to by slave computer
Main frame processed.
After the completion of tensioning, the load of jack can be progressively laid down, ensures Subsequent secure.Further, since the cone of body 11
Clevis piece acts on, and can be also clamped after the release load suddenly that breaks down, ensure safety.
Claims (5)
- A kind of 1. prestress wire intelligent tensioning device, it is characterised in that：Tensioning including being arranged on concrete component both sides Equipment（1）, tensioning equipment（1）With intelligent tensioning instrument（2）Connection, intelligent tensioning instrument（2）By being wirelessly transferred and computer master control System processed（3）Connection；The tensioning equipment（1）Including anchor structure（4）, jack（5）, the anchor structure（4）Including being arranged on concrete Cup-shaped anchor plate in component（6）, cup-shaped anchor plate（6）It is externally provided with centering plate（7）, backing plate（8）, backing plate（8）The framed knot of peripheral hardware Structure supporting plate（9）, mount structure supporting plate（9）With backing plate（8）Between be provided with lockset（10）, the cup-shaped anchor plate（6）, centering plate （7）, backing plate（8）And lockset（10）On be correspondingly provided with and pass through cup-shaped anchor with steel strand wires quantity and position identical hole, steel strand wires Backing plate（6）, centering plate（7）, backing plate（8）And lockset（10）After fix, lockset（10）Opposite side and jack（5）It is fixed.
- A kind of 2. prestress wire intelligent tensioning device according to claim 1, it is characterised in that：The jack （5）Pass through oil pipe and intelligent tensioning instrument（2）In oil pump connection, the output axis connection of oil pump and variable-frequency motor；The jack （5）Upper end, which is provided with, to be used to gather the pressure sensor of jack cylinder pressure value and for gathering steel strand wires elongation or amount of recovery The displacement transducer of value, variable-frequency motor, pressure sensor, displacement transducer pass through signal wire and intelligent tensioning instrument（2）In under Position machine connection, slave computer and computer master control system（3）Wireless conveying connection.
- A kind of 3. prestress wire intelligent tensioning device according to claim 1, it is characterised in that：The lockset（10） Including being fixed on backing plate（8）On body（11）, body（11）Interior positioning slip has card case（12）, card case（12）Had on interior Limited block（13）, tension rod（14）, wherein limited block（13）, body（11）Upper face position is provided with taper mounting groove in the same direction （15）, taper mounting groove（15）It is interior to be provided with multiple cone-shaped clips（16）, cone-shaped clip（16）Upper end passes through spring（17）With taper Mounting groove（15）On latch plate（18）It is detachably connected.
- A kind of 4. prestress wire intelligent tensioning device according to claim 3, it is characterised in that：The latch plate （18）It is circumferentially with three projections（19）, corresponding taper mounting groove（15）Upper end is provided with adaptable neck.
- A kind of 5. prestress wire intelligent tensioning device according to claim 3, it is characterised in that：The cone-shaped clip （16）Inner side mounting thread, the thread form section of screw thread is triangle, and the two sides at crest angle are towards cone-shaped clip miner diameter end Wedge surface, it is pawl face towards cone-shaped clip bigger diameter end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721193827.4U CN207211772U (en) | 2017-09-18 | 2017-09-18 | A kind of prestress wire intelligent tensioning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721193827.4U CN207211772U (en) | 2017-09-18 | 2017-09-18 | A kind of prestress wire intelligent tensioning device |
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| CN207211772U true CN207211772U (en) | 2018-04-10 |
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| CN201721193827.4U Active CN207211772U (en) | 2017-09-18 | 2017-09-18 | A kind of prestress wire intelligent tensioning device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109343591A (en) * | 2018-09-15 | 2019-02-15 | 北京市建筑工程研究院有限责任公司 | Post-tensioned prestressing tensioning Precise control device and method based on intelligent steel strand |
| 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 |
| CN112127636A (en) * | 2020-09-22 | 2020-12-25 | 柳州市广路预应力智能设备制造有限公司 | Intelligent tensioning Internet of things remote system |
| CN114775627A (en) * | 2022-03-25 | 2022-07-22 | 山东旭瑞环境岩土工程勘察设计有限公司 | Recoverable anchor cable |
| CN115450435A (en) * | 2022-08-10 | 2022-12-09 | 中交一公局集团有限公司 | Single equal-prestress tensioning device |
-
2017
- 2017-09-18 CN CN201721193827.4U patent/CN207211772U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109343591A (en) * | 2018-09-15 | 2019-02-15 | 北京市建筑工程研究院有限责任公司 | Post-tensioned prestressing tensioning Precise control device and method based on intelligent steel strand |
| 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 |
| CN112127636A (en) * | 2020-09-22 | 2020-12-25 | 柳州市广路预应力智能设备制造有限公司 | Intelligent tensioning Internet of things remote system |
| CN114775627A (en) * | 2022-03-25 | 2022-07-22 | 山东旭瑞环境岩土工程勘察设计有限公司 | Recoverable anchor cable |
| CN114775627B (en) * | 2022-03-25 | 2024-02-02 | 山东旭瑞环境岩土工程勘察设计有限公司 | Recoverable anchor cable |
| CN115450435A (en) * | 2022-08-10 | 2022-12-09 | 中交一公局集团有限公司 | Single equal-prestress tensioning device |
| CN115450435B (en) * | 2022-08-10 | 2023-10-03 | 中交一公局集团有限公司 | Single equal prestress tensioning equipment |
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