CN207888896U - Pretensioning prestressed concrete track board assembly line tensioning system - Google Patents
Pretensioning prestressed concrete track board assembly line tensioning system Download PDFInfo
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- CN207888896U CN207888896U CN201820015383.3U CN201820015383U CN207888896U CN 207888896 U CN207888896 U CN 207888896U CN 201820015383 U CN201820015383 U CN 201820015383U CN 207888896 U CN207888896 U CN 207888896U
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Abstract
The utility model belongs to tensioning equipment, particularly relates to pretensioning prestressed concrete track board assembly line tensioning system.The force value signal that force snesor is transmitted in tensioning system is transferred to central control unit and is controlled by it synchronous tension in tensioning system, holds lotus and locking；Braced frame including railway plate die can be accommodated, upper part is equipped with positioning framework that is in parallel and being vertically moved by power source drive, positioning framework is equipped with the positioning device being adapted to railway plate die, stretch-drawing beam on the outside of positioning framework and positioning framework be in towards or away from reciprocating motion, stretch-drawing beam is equipped with the tensioning equipment of end nut adaptation outside the tension rod being connect with presstressed reinforcing steel one end, and tensioning equipment realizes longitudinal straight reciprocating motion with stretch-drawing beam.The utility model efficiently solves the technology of the existing technology for being not easy to meet existing standard and the technical barriers such as requires, and has many advantages, such as preferably to meet current standard requirement, topology layout is compact, easy to realization automation control.
Description
Technical field
The utility model belongs to tensioning equipment, particularly relates to pretensioning prestressed concrete track board assembly line tensioning system
System.
Background technology
With the fast development of China Railway High-speed construction, the manufacture of track plates is produced after I, II, III types of CRTS- etc.
Diversified forms use III type pre-tensioning system track plates of plate-type ballastless track CRTS at present in industry.The track plates of any specification
It is both needed to by multiple working procedure in production, wherein including rail plate tension process.Track plates production be based on mold, by
The dies cavity of preset steel reinforcement cage and presstressed reinforcing steel cast concrete forms track plates after shaping, conserving, after maintenance molding
Track plates the production process for completing track plates is removed from railway plate die by stripping process.
Connecting rod is passed through using 8 molds using matrix arrangement fixed station A seating production, stretching mode in actual production at present
(manually connecting tension rod) presstressed reinforcing steel is connected, whole is carried out after forming whole transverse and longitudinal two dimension prestressing reticular structure
The pattern of drawing, stretching force is larger, and mold itself can not bear its reaction force, it is necessary to build a large amount of ground concrete foundation
Structure bears reaction force, simultaneously because using integral tension pattern it is difficult to ensure that the stretching force precision of every presstressed reinforcing steel.
It can be seen that there are following defects for the production of pre-tensioning system track plates production pedestal method：First, infrastructure provides expensive, the construction period
It is long；Second is that cumbersome production technology mode determines that the degree of automation is low in its production process；Third, user's number amount is more, labor
Fatigue resistance is big；Fourth, mold matrix arrangement and need to form counterforce structure to lead to occupy when civil engineering site area big at a certain distance,
Need construction production pedestal expensive, soil is not easy second ploughing after production；Fifth, production infrastructure utilization rate is low, wave is caused
Take.Sixth, tensioning precision can integrally ensure, but the stretching force precision of single presstressed reinforcing steel can not ensure consistency.
To make Chinese high ferro fast development go abroad, meet the Belt and Road and《Made in China 2025》Composite strategies are wanted
It asks, the keen competition for adapting to current international high speed railway construction needs, and it is succinct to research and develop more advanced, automation technolo, process
The III type pre-tensioned rail plate production lines of CRTS of science are imperative.Pre-stress construction skill in being produced due to pre-tensioning system track plates
Art is the core of track plates quality, the safety for being critically depend on tensioning mechanism of pre-stress construction quality and accurate.Tension process
And auxiliary facility is not only one of the technological difficulties in design and production process as critical process therein and corollary equipment, together
When be also this field important R＆D direction.
The company standard that Chinese Railway parent company prints and distributes《High-speed railway CRTSIII plate-type non-fragment orbit pre-tensioning systems are answered in advance
Power concrete railway board》(Q/CR567-2017) requirements of the middle 3.3.4 to tension of prestressed tendon is that " should be set using automatic Tensioning in
Standby, transverse and longitudinal presstressed reinforcing steel should use single-ended single synchronous tension mode, and be controlled with single tendon stretch force value；Tensioning should be equal
Even, loading speed should not exceed 4KN/S, until lotus 1min should be held when design stretching force, single tendon stretch power and design stretching force deviation
± 3.0% is should not exceed, and is locked ".Deng proposing strict demand to tensioning mechanism and technique.If control accuracy is low, up to not
To the quality requirement of track pre-stress construction, intelligence degree is low, and the pipeline system that cannot achieve track slab prestress construction is made
Industry.Its key problem is to need to develop to adapt to intelligent production line operation and can complete prestressing force integrally single synchronization
The automation tensioning mechanism of tensioning.
Utility model content
The purpose of this utility model is to provide a kind of pretensioning prestressed concrete track board assembly line tensioning systems, adopt
The tension operation that track plates are completed with the tensioning system in the utility model disclosure satisfy that existing standard applies rail plate tension
Work requirement.
The overall technology of the utility model is conceived：
Pretensioning prestressed concrete track board assembly line tensioning system, central control unit receive power in tensioning system and pass
Force value signal that sensor is transmitted simultaneously controls the synchronous tension of tensioning system, holds lotus and locking；Track plates can be accommodated including middle part
The braced frame of mold, the braced frame top above railway plate die are equipped in parallel and are vertically moved by power source drive
Positioning framework, positioning framework is equipped with the positioning device that be adapted to railway plate die, positioned at horizontal guide rail on the outside of positioning framework
On stretch-drawing beam driven by stretch-drawing beam driving mechanism and with positioning framework be in towards or away from reciprocating motion, stretch-drawing beam
It is equipped with tensioning equipment, tensioning equipment is adapted to the outer end nut of the tension rod that presstressed reinforcing steel one end is connect in railway plate die,
Drawing device is realized from tensioning equipment power source drive and with stretch-drawing beam with longitudinal linear reciprocation.
The particular technique design of the utility model also has：
The main function of braced frame is to provide stable support for positioning framework, to ensure the stabilization of system, is being met
Under the premise of carrying and structural strength, multiple material may be used and frame mode realizes that preferred technical solution is, described
Braced frame includes the front standing pillar and back prop being set at left and right sides of railway plate die direction of travel, is fixed on front standing pillar and rear branch
Column top and in horizontal distribution ceiling hold.To ensure the stability of its structure while being convenient for industrialization manufacture, more preferably
Technical solution is that the front standing pillar and each two of back prop, ceiling hold is rectangle.
To further increase the structural strength of braced frame, more preferably technical solution is that the front standing pillar is with after
It is connected with brace between pillar, between front standing pillar and back prop and ceiling hold.
To meet the receiving of central control system or other control systems, preferred technical solution is, between ceiling hold lower section
Every equipped with paralell, paralell outside is fixedly connected with ceiling hold lower surface by connecting rod.
For ease of ensureing the accuracy of positioning framework vertically moved, to carry out accurate tensioning operation and track template die
The transport of tool, while it being easy to implement real-time automation control, preferred technical implementation way is that power source selects both ends to connect respectively
It is connected to the lifting cylinder at the top of braced frame and on positioning framework, lifting cylinder is equipped with lifting displacement sensor, and lifting displacement passes
Sensor is connect with central control unit.
The main function of positioning device is to meet its accuracy positioned with railway plate die, is further ensured that tensioning operation
Quick, accurate progress, preferred technical implementation way is, positioning device be set to positioning framework bottom and with track template die
The positioning pin of the location hole adaptation opened up on tool.
The main function of stretch-drawing beam is to ensure that the tensioning equipment assembled thereon is convenient for and the tension rod on railway plate die
Locking is realized in outer end nut cooperation, because tension rod is located at railway plate die side form and end mould outer surface, preferred technical solution
That horizontal guide rail selects linear slide rail, stretch-drawing beam include be set on the outside of positioning framework and respectively with the side of railway plate die
Mould and the corresponding transverse stretching crossbeam of end mould and longitudinal stretch-drawing beam, stretch-drawing beam driving mechanism selects cross cylinder, horizontal
The both ends of oil cylinder are connect with stretch-drawing beam and positioning framework respectively.
For ease of being adapted to the track slab prestress muscle of existing standard, the construction process requirement in complying with standard, while just
In the layout of tensioning equipment, preferred technology realization rate is that longitudinal stretch-drawing beam includes being symmetrically disposed on posting
The first longitudinal direction stretch-drawing beam and second longitudinal direction stretch-drawing beam of frame both sides.
Under the premise of meeting current standard to stretching construction requirement, to realize tensioning equipment and tensioning in railway plate die
The automation of bar quickly connects, and the preferred technology realization rate of tensioning equipment is that tensioning equipment includes stretch-draw jack, connector
Crossbeam, locking motor, connector and connector crossbeam oil cylinder, connector crossbeam are set on stretch-drawing beam and by connector cross
It along stretch-drawing beam does longitudinal straight reciprocating motion to beam hydraulic oil cylinder driving, locks motor and stretch-draw jack is respectively arranged on stretch-drawing beam
Inside and outside, locking motor is adapted to the outer end nut clamping of tension rod, and connector is set on connector crossbeam and its both ends point
It is not adapted to end nut clamping outside the tension rod of the power output end of stretch-draw jack and railway plate die.
More preferably technical implementation way is that the stretch-draw jack power output end is the outer tensioning of end bulging
Bar.
Under the premise of meeting the stretching force accurately application to stretch-draw jack, for ease of carrying out automation control in real time
System, preferred technical implementation way are that the stretch-draw jack is equipped with tensioning force snesor, tensioning force snesor and center
Control device connects.
Lifting cylinder, cross cylinder, connector crossbeam oil cylinder displacement stroke can pass through be arranged displacement sensor side
Formula carries out real-time control, can also be met by setting oil cylinder range, all without departing from the technical essence of the utility model.
Open application of the method prestressed concrete railway board production line tensioning system in rail plate tension, including following technique
Step：
A, railway plate die positions
Positioning framework declines, and positioning pin is inserted into the location hole on railway plate die, realizes the positioning of railway plate die；
B, stretch-drawing beam closes up in place
Stretch-drawing beam closes up under cross cylinder pulling and is bonded positioning with railway plate die；
C, locking motor rotation entangles tensioning stem nut
End nut outside the tension rod of railway plate die is entangled in rotation to locking motor at a slow speed clockwise；
D, connector connection tension rod and outer tension rod
Connector moves down under the drive of connector crossbeam oil cylinder and connector crossbeam, completes the tensioning with railway plate die
The connection of the outer end nut of bar and outer tensioning boom end；
E, stretch-draw jack synchronous tension to setting force value and holds lotus
Stretch-draw jack to setting force value and holds lotus to the tension rod synchronous tension in railway plate die；
F, tensioning stem nut is locked
Motor is locked to being locked after end nut high speed rotation clockwise outside the tension rod of railway plate die；
G, stretch-draw jack unloads
Stretch-draw jack unloads oil-removing pocket load by oil circuit solenoid valve；
H, connector is opened
Connector uplink under the drive of connector crossbeam oil cylinder and connector crossbeam completes the tensioning with railway plate die
The outer end nut of bar and outer tensioning boom end loosen；
I, stretch-drawing beam is opened
Stretch-drawing beam is opened under cross cylinder promotion；
J, stretch-draw jack returns back to top in place
Stretch-draw jack is returned back to top by oil circuit solenoid valve oil supply；
K, positioning framework rising is detached with railway plate die
Positioning framework rises, and positioning pin is detached with the location hole on railway plate die.
In the description of the present invention, term " top ", " top ", " outer end ", "left", "right", "front", "rear", " under
The orientation or positional relationship of the instructions such as side ", " vertical " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of letter
Change description the utility model, does not indicate or imply the indicated device or element must have a particular orientation, with specific
Azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply.
Technological progress acquired by the utility model is：
1, using that can accommodate base support of the braced frame of working track and railway plate die as system, structure is steady
It is fixed reliable, auxiliary installation thereon and the positioning framework driven by lifting cylinder, be effectively ensured tensioning equipment synchronization lifting and
Opening and closing movement, under the premise of synchronous tension requirement in meeting existing stretching construction, mechanism reasonable design, stable and reliable operation.
2, tensioning equipment is connected in such a way that locking motor is combined with jack, while using connector hydraulic oil cylinder driving
Device, in meeting standard to applying prestressing force, the Specific constructions requirement such as hold lotus, locking under the premise of, swift to operate, action completion
Accuracy is high.
3, using the structure design of force snesor, effectively the prestressing force applied can be monitored in real time, avoid surpassing
And deficient Zhang Xianxiang generation.
4, the structure of cross cylinder and connector crossbeam oil cylinder can meet displacement stroke standard by setting oil cylinder range
True requirement, is effectively simplified structure.
5, the accurate of positioning has been effectively ensured in locating pin structure corresponding with railway plate die location hole on positioning framework
Property, it orderly carries out providing structure guarantee for stretching construction.
6, longitudinal stretch-drawing beam is symmetrically disposed on positioning framework both sides, and list should be used to presstressed reinforcing steel meeting existing standard
While holding single synchronous tension requirement, the needs of stretch-draw jack topology layout are disclosure satisfy that.
Description of the drawings
Fig. 1 is the front view of tensioning system in the utility model.
Fig. 2 is the vertical view of tensioning system in the utility model.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the A-A direction views that Fig. 2 is attached to after railway plate die.
Fig. 5 is the B-B direction view that Fig. 1 is attached to after railway plate die.
Reference numeral in attached drawing is as follows：
1, front standing pillar；2, ceiling hold；3, paralell；4, back prop；5, positioning pin；6, positioning framework；7, brace；8, horizontal
To stretch-drawing beam；9, railway plate die；10, cross cylinder；11, horizontal guide rail；12, second longitudinal direction stretch-drawing beam；13, it connects
Device；14, connector crossbeam；15, connector crossbeam oil cylinder；16, tensioning force snesor；17, stretch-draw jack；18, outer tension rod；
19, motor is locked；20, first longitudinal direction stretch-drawing beam；21, lifting cylinder；22, displacement sensor is lifted；23, transverse stretching bar；
24, longitudinal tension rod.
Specific implementation mode
The utility model is described further with reference to embodiments, but should not be construed as the limit to the utility model
Fixed, the scope of protection of the utility model is subject to the content of claim record, any equivalent skill made according to specification
Art means are replaced, all without departing from the scope of protection of the utility model.
The general idea of the present embodiment is as shown, wherein pretensioning prestressed concrete track board assembly line tensioning system,
Central control unit receives the force value signal that force snesor is transmitted in tensioning system and controls the synchronous tension of tensioning system, holds
Lotus and locking；The braced frame of railway plate die 9 can be accommodated including middle part, the braced frame top of 9 top of railway plate die is set
There are positioning framework 6 that is in parallel and being vertically moved by power source drive, positioning framework 6 to be equipped with and be adapted to railway plate die 9
Positioning device, the stretch-drawing beam on 6 outside horizontal guide rail 11 of positioning framework driven by stretch-drawing beam driving mechanism and with
Positioning framework 6 be in towards or away from reciprocating motion, stretch-drawing beam be equipped with connects with presstressed reinforcing steel one end in railway plate die 9
The tensioning equipment of the outer end nut adaptation of tension rod connect, tension rod include transverse stretching bar 23 and longitudinal tension rod 24, tensioning dress
It sets from tensioning equipment power source drive and is realized with longitudinal linear reciprocation with stretch-drawing beam.Power source selects both ends to be separately connected
Lifting cylinder 21 at the top of braced frame and on positioning framework 6, lifting cylinder 21 are equipped with lifting displacement sensor 22, lift position
Displacement sensor 22 is connect with central control unit.Braced frame includes before being set at left and right sides of 9 direction of travel of railway plate die
Pillar 1 and back prop 4 are fixed on front standing pillar 1 and 4 top of back prop and the ceiling hold 2 in horizontal distribution, the front standing pillar 1
And back prop 4 each two, ceiling hold 2 are rectangle.
It is connected with brace between the front standing pillar 1 and back prop 4, between front standing pillar 1 and back prop 4 and ceiling hold 2
7。
2 lower section of ceiling hold is equipped at intervals with paralell 3, and 3 outside of paralell, which is fixed with 2 lower surface of ceiling hold by connecting rod, to be connected
It connects.
Positioning device is the positioning for being set to 6 bottom of positioning framework and being adapted to the location hole opened up on railway plate die 9
Pin 5.Positioning pin 5 totally four is distributed in four vertex of positioning framework.
Horizontal guide rail 11 selects linear slide rail, stretch-drawing beam include be set to the outside of positioning framework 6 and respectively with track plates
The side form and the corresponding transverse stretching crossbeam 8 of end mould and longitudinal stretch-drawing beam, stretch-drawing beam driving mechanism of mold 9 are selected horizontal
The both ends of oil cylinder 10, cross cylinder 10 are connect with stretch-drawing beam and positioning framework 6 respectively.
Longitudinal stretch-drawing beam includes the first longitudinal direction stretch-drawing beam 20 and for being symmetrically disposed on 6 both sides of positioning framework
Two longitudinal stretch-drawing beams 12.
Tensioning equipment includes stretch-draw jack 17, connector crossbeam 14, locking motor 19, connector 13 and connector
Crossbeam oil cylinder 15, connector crossbeam 14 are set on stretch-drawing beam and drive it to be done along stretch-drawing beam by connector crossbeam oil cylinder 15
Longitudinal straight reciprocating motion, locks motor 19 and stretch-draw jack 17 is respectively arranged on inside and outside stretch-drawing beam, locks motor
19 be adapted tos with tension rod outer end nut clamping, connector 13 on connector crossbeam 14 and its both ends respectively with stretch-draw jack
17 power output end and the outer end nut of the tension rod of railway plate die 9 clamp adaptation.
17 power output end of stretch-draw jack is the outer tension rod 18 of end bulging.It is set on the stretch-draw jack 17
There are tensioning force snesor 16, tensioning force snesor 16 to be connect with central control unit.
Cross cylinder 10, connector crossbeam oil cylinder 15 displacement stroke can by set oil cylinder range meet,
Real-time control can be carried out in such a way that displacement sensor is set.
Claims (11)
1. pretensioning prestressed concrete track board assembly line tensioning system, central control unit receives power in tensioning system and senses
Force value signal that device is transmitted simultaneously controls the synchronous tension of tensioning system, holds lotus and locking；It is characterized by comprising middle parts to hold
Receive the braced frames of railway plate die (9), the braced frame top above railway plate die (9) is equipped in parallel and by power
Source drives the positioning framework (6) vertically moved, positioning framework (6) to be equipped with the positioning device being adapted to railway plate die (9), position
In the stretch-drawing beam on positioning framework (6) outside horizontal guide rail (11) by the driving of stretch-drawing beam driving mechanism and and positioning framework
(6) be in towards or away from reciprocating motion, stretch-drawing beam is equipped with tensioning equipment, pre- in tensioning equipment and railway plate die (9)
The outer end nut adaptation of tension rod of stress rib one end connection, tensioning equipment are by tensioning equipment power source drive and real with stretch-drawing beam
Now longitudinal linear reciprocation cooperation.
2. pretensioning prestressed concrete track board assembly line tensioning system according to claim 1, it is characterised in that institute
The braced frame stated includes the front standing pillar (1) and back prop (4) being set at left and right sides of railway plate die (9) direction of travel, fixed
At the top of front standing pillar (1) and back prop (4) and in the ceiling hold (2) of horizontal distribution.
3. pretensioning prestressed concrete track board assembly line tensioning system according to claim 2, it is characterised in that institute
It is connected with brace between the front standing pillar (1) stated and back prop (4), between front standing pillar (1) and back prop (4) and ceiling hold (2)
(7)。
4. the pretensioning prestressed concrete track board assembly line tensioning system according to any one of Claims 2 or 3,
It is characterized in that being equipped at intervals with paralell (3) below ceiling hold (2), passes through connecting rod with ceiling hold (2) lower surface on the outside of paralell (3)
It is fixedly connected.
5. pretensioning prestressed concrete track board assembly line tensioning system according to claim 1, it is characterised in that dynamic
Power source selects both ends to be connected to the lifting cylinder (21) at the top of braced frame and on positioning framework (6), lifting cylinder (21)
Equipped with lifting displacement sensor (22), lifting displacement sensor (22) is connect with central control unit.
6. the pretensioning prestressed concrete track board assembly line tensioning system according to any one of claim 1 or 5,
It is characterized in that positioning device is to be set to positioning framework (6) bottom and be adapted to the location hole opened up on railway plate die (9)
Positioning pin (5).
7. pretensioning prestressed concrete track board assembly line tensioning system according to claim 1, it is characterised in that institute
The horizontal guide rail (11) stated selects linear slide rail, stretch-drawing beam include be set on the outside of positioning framework (6) and respectively with track plates
The side form of mold (9) and the corresponding transverse stretching crossbeam (8) of end mould and longitudinal stretch-drawing beam, stretch-drawing beam driving mechanism are selected
The both ends of cross cylinder (10), cross cylinder (10) are connect with stretch-drawing beam and positioning framework (6) respectively.
8. pretensioning prestressed concrete track board assembly line tensioning system according to claim 7, it is characterised in that institute
The longitudinal stretch-drawing beam stated includes the first longitudinal direction stretch-drawing beam (20) and second longitudinal direction for being symmetrically disposed on positioning framework (6) both sides
Stretch-drawing beam (12).
9. the pretensioning prestressed concrete track board assembly line tensioning system according to any one of claim 1,7 or 8,
It is characterized in that the tensioning equipment includes stretch-draw jack (17), connector crossbeam (14), locking motor (19), connector
(13) and connector crossbeam oil cylinder (15), connector crossbeam (14) are set on stretch-drawing beam and by connector crossbeam oil cylinders
(15) it is driven to do longitudinal straight reciprocating motion along stretch-drawing beam, locking motor (19) and stretch-draw jack (17), which are respectively arranged on, to be opened
It draws inside and outside crossbeam, locking motor (19) is adapted to the outer end nut clamping of tension rod, and it is horizontal that connector (13) is set to connector
On beam (14) and its both ends respectively with the power output end of stretch-draw jack (17) and the tension rod outer end spiral shell of railway plate die (9)
Master card dress adaptation.
10. pretensioning prestressed concrete track board assembly line tensioning system according to claim 9, it is characterised in that institute
The power output end for the stretch-draw jack (17) stated is the outer tension rod (18) of end bulging.
11. pretensioning prestressed concrete track board assembly line tensioning system according to claim 10, it is characterised in that
The stretch-draw jack (17) is equipped with tensioning force snesor (16), which connects with central control unit
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820015383.3U CN207888896U (en) | 2018-01-05 | 2018-01-05 | Pretensioning prestressed concrete track board assembly line tensioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820015383.3U CN207888896U (en) | 2018-01-05 | 2018-01-05 | Pretensioning prestressed concrete track board assembly line tensioning system |
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| Publication Number | Publication Date |
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| CN207888896U true CN207888896U (en) | 2018-09-21 |
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ID=63551612
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| CN201820015383.3U Active CN207888896U (en) | 2018-01-05 | 2018-01-05 | Pretensioning prestressed concrete track board assembly line tensioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044789A (en) * | 2018-01-05 | 2018-05-18 | 河北益铁机电科技有限公司 | Pretensioning prestressed concrete track board assembly line tensioning system and its application |
-
2018
- 2018-01-05 CN CN201820015383.3U patent/CN207888896U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044789A (en) * | 2018-01-05 | 2018-05-18 | 河北益铁机电科技有限公司 | Pretensioning prestressed concrete track board assembly line tensioning system and its application |
| CN108044789B (en) * | 2018-01-05 | 2023-10-13 | 河北益铁机电科技有限公司 | Pretensioned prestressed concrete track slab production line tensioning system and application thereof |
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