Bridge jacking controls the lossless jacking control system of subsystem and bridge local
Technical field
The present invention relates to bridge pad maintenance and change construction equipment technical field, espespecially a kind of bridge jacking controls subsystem
With the lossless jacking control system in bridge local.
Background technology
Highroad is a large amount of bridges using multi-disc contignation in building, and under every beam slab, the most flexible bearing props up
The dead load of support top beam slab and dynamic loading, after using a period of time, bearing can the most aging or disease damage, and needs to change dimension
Repair, at this moment need beam slab jack-up, take out old bearing, more renew bearing.But a piece of beam slab of jack-up can damage beam slab and beam slab it
Between architecture connect (or hinge seam connect), cause the damage of road pavement layer, affect road traffic.Existing bridge jacking
System is that whole beam slabs on bridge pier top are synchronized jack-up, then changes all bearings.But, generally, moved by road surface
The local bridge beam support that load is bigger damages very fast, and the probability that all bearings damage simultaneously is less.Once change whole bearings,
Not only waste time and energy, also can affect road traffic.
Therefore, the applicant is devoted to provide a kind of bridge jacking to control subsystem and the bridge lossless jacking in local controls system
System.
Summary of the invention
It is an object of the invention to provide a kind of bridge jacking and control the lossless jacking control system of subsystem and bridge local, bridge
Back rises control subsystem can effectively control the top lifting height of bridge, and the lossless jacking control system in bridge local can be to bridge
The bearing of regional area is replaced, thus effectively promotes maintenance efficiency, and reduces maintenance cost, it is also possible to reduces road pavement and hands over
Logical impact.
For solving above-mentioned technical problem, the invention provides a kind of bridge jacking and control subsystem, including: instruction controls
Device, is used for sending jacking instruction;Servo amplifier, is connected with described instruction control unit, is used for receiving described instruction control unit and sends out
The jacking instruction sent;Jacking apparatus, is connected with described servo amplifier, is used under the control of described servo amplifier bridge
Plate carries out jacking.
Preferably, described bridge jacking controls subsystem and also includes: displacement transducer, is connected with described servo amplifier,
For sending the displacement information of bridge plate to described servo amplifier.
Preferably, described servo amplifier includes that electronic amplifier and the electrichydraulic control being connected with described electronic amplifier are watched
Taking pump, described electronic amplifier is connected with described instruction control unit, and described electrichydraulic control servopump is connected with described jacking apparatus.
Preferably, described jacking apparatus is oil cylinder or cylinder.
The invention also discloses the lossless jacking control system in a kind of bridge local, including: at least one pair of above-mentioned bridge jacking
Controlling subsystem, every pair of described bridge jacking controls a described bridge jacking in subsystem and controls subsystem for one
At hinge seam, the bridge plate of side carries out jacking, and another described bridge jacking controls subsystem for opposite side at same hinge seam
Bridge plate carry out jacking.
Preferably, the lossless jacking control system in described bridge local also includes: at least one hinge seam sensor, with described bridge
Back rises the instruction control unit controlled in subsystem and connects, for sending hinge seam information to described instruction control unit.
Preferably, the instruction control unit during all described bridge jackings control subsystem is integrated into same instruction control unit.
The bridge jacking of the present invention control the lossless jacking control system of subsystem and bridge local can realize following at least
A kind of beneficial effect.
1, the bridge jacking of the present invention controls subsystem by instruction control unit to servo amplifier transmission jacking instruction, watches
Taking amplifier, further according to jacking instruction control jacking apparatus, bridge plate is carried out jacking, this subsystem can realize bridge plate top
The accurate control of rise.
2, the bridge jacking of the present invention controls subsystem by arranging the displacement height of displacement transducer monitoring bridge plate jacking
Displacement information is also sent to servo amplifier by degree, and servo amplifier combines displacement information and the instruction control that displacement sensor sends
The jacking instruction that device sends controls jacking apparatus and carries out next step jacking.
3, the lossless jacking control system in bridge local of the present invention is respectively provided with one by the both sides at a hinge seam
Bridge jacking controls subsystem, and a sub-system carries out jacking to the bridge plate of hinge seam both sides respectively, and so arranging can be effective
Control the top lifting height of the bridge plate of hinge seam both sides, thus be prevented effectively from the top lifting height difference between the bridge plate of hinge seam both sides
Cause more greatly hinge seam impaired.
4, in actual applications, the lower section of every piece of bridge plate is the most symmetrical for the lossless jacking control system in bridge local of the present invention
Being provided with a pair jacking apparatus, bridge plate one end of both sides is supported by jacking apparatus, and other end top lifting height is zero, by bridge pier (or
Ground) it is supported, therefore, even if there being heavy-duty vehicle process, not resulting in bridge plate yet, therefore, using this jack-up system
When changing the bearing of local bridge, bridge still can maintain normal traffic.
5, the lossless jacking control system in bridge local of the present invention monitors hinge seam information and by hinge by hinge seam sensor
Seam information sends and controls the instruction control unit in subsystem to bridge jacking, and instruction control unit combines hinge seam information and adjusts jacking
Instruction, namely adjusts next step top lifting height of each bridge plate, so arranges that can be prevented effectively from hinge seam impaired.
6, the multiple bridge jackings control subsystem in the lossless jacking control system in bridge local of the present invention can share
One instruction control unit, so arranging can effective simplied system structure.
Accompanying drawing explanation
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of a kind of specific embodiment of the bridge jacking control subsystem of the present invention;
Fig. 2 is the structural representation of a kind of specific embodiment of the lossless jacking control system in bridge local of the present invention;
Fig. 3 is the bridge local lossless jacking control system structural representation when completing jacking shown in Fig. 2
Figure.
Drawing reference numeral illustrates:
Instruction control unit 10, servo amplifier 20, electronic amplifier 21, electrichydraulic control servopump 22, jacking apparatus 30, position
Displacement sensor 40, hinge seam sensor 50, bridge plate A1、A2、A3、A4、A5。
Detailed description of the invention
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Embodiment one
As it is shown in figure 1, embodiment one discloses a kind of bridge jacking controls subsystem, including: instruction control unit 10, it is used for
Transmission jacking instructs;Servo amplifier 20, is connected with instruction control unit 10, and the jacking sent for receiving instruction control unit 10 refers to
Order;Jacking apparatus 30, is connected with servo amplifier 20, for bridge plate being carried out jacking under the control of servo amplifier 20,
In the present embodiment, jacking apparatus 30 is oil cylinder.
In the present embodiment, servo amplifier 20 includes electronic amplifier 21 and the electro-hydraulic control being connected with electronic amplifier 21
Servopump 22 processed, electronic amplifier 21 is connected with instruction control unit 10, and electrichydraulic control servopump 22 is connected with jacking apparatus 30.
Bridge jacking in the present embodiment controls subsystem and also includes: displacement transducer 40, is connected with servo amplifier 20,
Concrete, displacement transducer 40 is connected with the electronic amplifier 21 in servo amplifier 20.Displacement transducer 40 is for servo
Amplifier 20 sends the displacement information of bridge plate, displacement information that servo amplifier 20 bound site displacement sensor 40 sends and referring to
The jacking instruction that controller 10 sends is made to determine next step top lifting height of oil cylinder.
Exemplary, as it is shown in figure 1, the bridge jacking of the present invention controls the concrete applicable cases of the embodiment one of subsystem
As follows:
1, instruction control unit 10 generates jacking and instructs and send to electronic amplifier 21;
2, jacking instruction is sent to electrichydraulic control servopump 22 by electronic amplifier 21 further;
3, electrichydraulic control servopump 22 controls the top lifting height of oil cylinder according to jacking instruction;
4, displacement transducer 40 obtains the jacking displacement information of bridge plate, and sends displacement information to electronic amplifier
21;
5, displacement information is sent to electrichydraulic control servopump 22 by electronic amplifier 21 further;
6, electrichydraulic control servopump 22 combines displacement information and jacking instruction controls next step top lifting height of oil cylinder
Until bridge plate reaches default top lifting height.
Embodiment two
Shown in Fig. 1, Fig. 2 and Fig. 3, embodiment two discloses the lossless jacking control system in a kind of bridge local, including
Bridge jacking disclosed in four pairs of embodiments one controls subsystem, and every pair of described bridge jacking controls a bridge in subsystem
Jacking controls subsystem and carries out jacking for cutting with scissors the bridge plate of side at seam to one, and another bridge jacking controls subsystem and uses
In the bridge plate of opposite side at same hinge seam is carried out jacking.
The lossless jacking control system in bridge local in the present embodiment also includes four hinge seam sensors 50, with instruction control
Device 10 connects, for sending hinge seam information to instruction control unit 10.Hinge seam information herein is the phase of the bridge plate of hinge seam both sides
To displacement, if relative displacement is less, then hinge seam safety, if relative displacement is relatively big, then hinge seam receives damage.
Owing to a pair bridge jacking controls subsystem the bridge plate of one hinge seam left and right sides is carried out jacking, therefore,
In the present embodiment, a pair bridge jacking controls subsystem and all configures a hinge seam sensor 50.Instruction control unit 10 can basis
Hinge seam information adjust corresponding bridge jacking control the jacking instruction of subsystem, so setting can be with instruction control unit 10
Hinge seam adjusts jacking instruction in time before being damaged, thus is prevented effectively from hinge seam and damages, and makes bridge pavement can keep smooth, protects
Demonstrate,prove the total quality of bridge.
Concrete, the instruction control unit 10 in eight bridge jackings control subsystems in the present embodiment is integrated into same finger
Make controller.
Exemplary, in conjunction with Fig. 1, Fig. 2 and Fig. 3, the embodiment of the lossless jacking control system in bridge local of the present invention
Concrete applicable cases is as follows:
1, at each hinge seam, it is symmetrical arranged a pair bridge jacking controls subsystem, and be respectively mounted one at each hinge seam
Hinge seam sensor 50;
2, instruction control unit 10 generates eight different jackings instructions, and the corresponding bridge jacking of each jacking instruction controls
Subsystem, the top lifting height of eight jacking instruction specially eight oil cylinders first increases successively, then is sequentially reduced;
3, bridge jacking control subsystem instructs bridge plate A according to different jackings respectively1、A2、A3、A4、A5Carry out different
Step jacking;
4, the hinge seam information monitored is sent to instruction sensor 10 by hinge seam sensor 50, and instruction sensor 10 is according to hinge
Seam information adjusts corresponding bridge jacking and controls the jacking instruction of subsystem;
5, when bridge entirety reaches state as shown in Figure 3, bridge plate A is changed3The bearing at place.
As it is shown on figure 3, the bridge after the bridge lossless jacking control system jacking in local of the present invention is two-way horizontal wall inscription
Shape, is so conveniently replaceable bridge plate A3Place bearing, and in bridge hinge seam be difficult to impaired.
Of course, in other specific embodiments, the bridge jacking of the present invention control the displacement transducer in subsystem and
Hinge seam sensor in the lossless jacking control system in bridge local all can be arranged with selectivity;Bridge jacking controls in subsystem
Jacking apparatus can also arrange cylinder or other kinds of jacking apparatus;Additionally, in the lossless jacking control system in bridge local
The number of number and hinge seam sensor that bridge jacking controls subsystem all can be adjusted, the most according to actual needs
Repeat again.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.