CN101676572B - Directly-connected minitype hydraulic-pump combined control system and control device thereof - Google Patents
Directly-connected minitype hydraulic-pump combined control system and control device thereof Download PDFInfo
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- CN101676572B CN101676572B CN 200810211581 CN200810211581A CN101676572B CN 101676572 B CN101676572 B CN 101676572B CN 200810211581 CN200810211581 CN 200810211581 CN 200810211581 A CN200810211581 A CN 200810211581A CN 101676572 B CN101676572 B CN 101676572B
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Abstract
The invention relates to a directly-connected minitype hydraulic-pump combined control system for bridge synchronous lifting and a control device thereof. The directly-connected minitype hydraulic-pump combined control system comprises a plurality of directly-connected minitype hydraulic control devices, wherein each directly-connected minitype hydraulic control device comprises a high-voltage motor pump, an electric-control reversing valve, an oil tank and a jack; the output of the high-voltage motor pump is connected with the electric-control reversing valve; the output end pipeline of the electric-control reversing valve is connected with the jack; a displacement sensor is installed near the jack; and the electric-control reversing valve, the high-voltage motor pump and the displacement sensor of each directly-connected minitype hydraulic control device are respectively connected with a programmable automatic controller through cables and connected with a control computer through the programmable automatic controller. The directly-connected minitype hydraulic-pump combined control system has the advantages of small size and light weight, and the whole system can be conveniently fixed on a scaffold platform or bridge pier; the distance to the jack is short; and the system can be combined freely so as to carry out the intelligent control on the synchronous lifting of the single-section surface, multi-end-surface and variable-end-surface bridges.
Description
Technical field
The present invention relates to a kind of direct connection micro hydraulic pump combined control system and control gear thereof that other construction such as bridge realize synchronous liftings that be used for.
Background technique
Bridge pad is the knob chalaza that connects bridge top and the bottom structure, construct precise and tinyly, because communications and transportation heavy duty and wild environment influence, disease takes place easily.In case damage,, must carry out synchronous lifting to beam body fulcrums all in the section, so that the bearing that more renews satisfies the normal use of bridge with bearing capacity that has a strong impact on bridge and working life.
Aspect the maintenance and transformation reinforcing of highway bridge bearing, the replacing form of construction work of bearing has two kinds at present, and a kind of is traditional hand-hydraulic jack operating type, and another kind is an electric hydraulic station synchronization job mode.
Traditional operating type is the up-down of leaning on a plurality of hydraulic jack of many group personnel operation, and accomplishes the simple synchronous lifting of bridge at the other displacement measuring instrument (as: dial gauge) of installing of each jack.There is following shortcoming in this operating type: 1. under bridge, set up and can bear the auxiliary pier that lifts bridge weight, site operation operation intensity is big, especially runs into the situation that soft basis under water or the bridge is arranged, and the workload of setting up is very big; 2. rely on manual operation, efficient is low; 3. synchronous lifting leans on the reading of artificial observation displacement detecting table to control, and the synchronization accuracy error is big, causes bridge inclination and traversing easily, even structural failure; 4. operation number is many, and in the lifting process, orchestration is difficulty very.
The hydraulic pump source that electric hydraulic station synchronization job mode is made up of oil pump, control valve, fuel tank, motor, instrument etc.; Be connected by long pipe runs with a plurality of jack by a hydraulic pump source; Adopt manual tune control or synchronous electronic controller controls bridge synchronous lifting; Export pipeline is connected to hand-operated direction valve and electronic selector valve; Be connected (can connect 16 at most) with each jack through single or a plurality of oil circuit distributors, installation displacement measuring instrument or displacement transducer are realized the synchronous lifting function that bridge is basic on four angles of bridge, wherein have jack and displacement transducer to be the unification dual mode.Its shortcoming is: 1. the quantity of every hydraulic pump source jacking simultaneously jack is restricted, and can not expand the more jack of jacking; 2. be placed on the bridge floor or bridge under the hydraulic pipe line of hydraulic pump source to each jack long, joint is too much, especially runs into high pier, the situation of water is arranged, pipeline is laid with to be connected workload very big; 3. hydraulic pipe line length and joint are many, because of joint seepage and pipelines from bursting, are prone to cause destruction or other security incident, the particularly synchronization control of the many fulcrums of continuous beam body of bridge structure during lifting, and problem is more outstanding; 4. hydraulic pump source need be through the oil circuit distributor of the many interfaces in several roads, the jack of jacking simultaneously more than 2 or 2, and the synchronization control on separate unit top is restricted, can not adapt to multibreak, become the intelligent control requirement of section and long continuous beam realization lift height.5. jack piston rod and displacement transducer unification mode, because of different bridge structure needs different jack, and the immerge that supports jack influence synchronous lifting, and make this unification mode not only use and be restricted, and the engineering cost height.
Summary of the invention
The present invention has overcome above-mentioned shortcoming, a kind of precise control, volume direct connection micro hydraulic control gear little, in light weight, easy to use is provided and has been used for the direct connection micro hydraulic pump combined control system of bridge synchronous lifting.
The present invention solves the technological scheme that its technical problem takes: a kind of direct connection micro hydraulic pump combined control system that is used for the bridge synchronous lifting; Comprise direct connection micro hydraulic control gear; Said direct connection micro hydraulic control gear comprises high-voltage electric pump, electric control reversing valve, fuel tank and jack; The output of said high-voltage electric pump connects said electric control reversing valve; Said electric control reversing valve contains one-way valve, and the output terminal pipeline of said electric control reversing valve is connected to said jack, near said jack place displacement transducer is being installed; Electric control reversing valve, high-voltage electric pump and displacement transducer in said each direct connection micro hydraulic control gear link to each other with programmable automatic controller through cable respectively, and are connected to control computer through said programmable automatic controller.
Also be provided with switchboard between said programmable automatic controller and the control computer, organize direct connection micro hydraulic control gear more and be connected to said control computer through the switchboard that links to each other.
The cable of the output of said electric control reversing valve, displacement transducer is linked in the terminal box, each signal is focused on a cable link to each other with programmable automatic controller.
Also be in series with manual throttle valve in the pipeline between the output terminal of said electric control reversing valve and the said jack.
Said high-voltage electric delivery side of pump also is connected with relief valve.
Said electric control reversing valve comprise a two position two-way valve and with the corresponding 3-position-3-way valve of said jack number, said each valve is connected in said high-voltage electric delivery side of pump in parallel, the output terminal of said 3-position-3-way valve links to each other with each jack through pipeline.
Also be in series with shunting device in the pipeline between the output terminal of said electric control reversing valve and the said jack, be connected with pressure gauge or/and pressure transducer on the said shunting device.
Said shunting device adopts oil circuit distributing valve or polylinker diverter valve.
The present invention also discloses a kind of direct connection micro hydraulic control gear; Comprise by high-voltage electric pump, electric control reversing valve, fuel tank and jack; The output of said high-voltage electric pump connects said electric control reversing valve; Said electric control reversing valve contains one-way valve, and the output terminal pipeline of said electric control reversing valve is connected to said jack.
Separate unit direct connection micro hydraulic control gear among the present invention, because of volume is little, in light weight, complete machine can be fixed on the hand bracket platform of setting up or on the bridge pier easily; And it is shorter with the distance of jack 13; Pipeline 16 generally in 2～4 meters scopes, has been cancelled the connection of general hydraulic lifting long pipe runs, adopts multichannel modular combination system; Can be on the 8---256 road system's combination in any, carry out single section, multiterminal face and become the intellectuality control of end face bridge synchronous lifting.And ultrahigh pressure of the present invention, zero leakage, thereby guaranteeing effectively and for a long time to keep in the bridge lifting supports.Use a computer precise synchronization control carried out in the displacement of jack and pressure, show in real time each parameter variation and can time update and setting, simple to operate, automaticity is high.Use jack 13 and displacement transducer 14 separated type modes, the measurement of sensor 14 does not receive the influence of jack structure restriction and immerge, and synchronization control is accurate, and engineering cost is low.
Use the present invention can be not interrupting under the highway communication situation, according to bridge structure, number of support points and requirement, can be on the 8---256 road system's combination in any, accomplishes multibreak, become quick, the secure synchronization lifting of section and long continuous bridge.
Description of drawings
Fig. 1 is a separate unit direct connection micro hydraulic control gear structural representation of the present invention;
Fig. 2 is of the present invention 16 channel modularized group shot schematic representation;
Fig. 3 is of the present invention 256 channel modularized group shot schematic representation.
Embodiment
As shown in Figure 1; The structural representation of separate unit direct connection micro hydraulic control gear among the present invention; Comprise micro hydraulic pump group by high-voltage electric pump 5, relief valve 17, electric control reversing valve 6,7,8 and fuel tank 18 constituting bodies, and oil circuit distributing valve 15, jack 13 and displacement transducer 14 etc.The output of the said high-voltage electric pump 5 said electric control reversing valve 6,7,8 that is connected in parallel successively; Wherein said electric control reversing valve 6 is a two position two-way valve; 7,8 then is the 3-position-3-way valve; The various flows that has guaranteed fluid is to (being rising or the decline or the pressurize of jack), and selector valve contains one-way valve and can prevent any type of leakage and guarantee the reliable pressurize of security of system, is connected in parallel on the outlet port of said high-voltage electric pump 5 for avoiding the too high relief valve that is provided with 17 of oil pressure.
(being the output terminal pipeline of said 3-position-3-way valve 7,8) is connected to oil circuit distributing valve 15 on the export pipeline of said micro hydraulic pump group; Be connected to pressure gauge 9, pressure transducer 10 and manual throttle valve 11 on the said oil circuit distributing valve 15 respectively; Manual throttle valve 11 directly is connected with jack 13, and 1 jack cylinder 13 can be independently controlled in each oil circuit outlet.Because it is the shortest that pipeline 17 connects, the safety that has also guaranteed system's operation is with reliable, installation position displacement sensor 14 near the bridge of jack 13.Said oil circuit distributing valve 15 also can adopt the diverter valve of polylinker to realize, makes to form multiple branches from the outgoing management of said micro hydraulic pump group, and fuel feeding is pressed the usefulness of detection, oil circuit control etc.
As shown in Figure 2; Structural representation for the present invention's 16 channel modularized group shots; The elastic cable paper of the electromagnetic valve group 6,7,8 on the separate unit direct connection micro hydraulic control gear, pressure transducer 10 and the elastic cable paper tandem of displacement transducer 14 are arrived in the terminal box 12, focus on a cable and link to each other with computer PAC controller (programmable automatic controller) 2.Said PAC controller 2 is native system core control pieces, and it links to each other with motor power supply control box 1 with computer 4 respectively through cable, and motor power supply control box 1 links to each other with high-voltage electric pump 5.In the course of the work, control the flow direction of fluid through bi-bit bi-pass on the separate unit direct connection micro hydraulic pump 6 and 3-position-3-way solenoid directional control valve 7,8.Be arranged on the data upload that data that the displacement transducer 14 at bridge fulcrum place gathers and hydraulic system pressure sensor 10 gather and arrive PAC controller 2; By these data of controller 2 analysing and processing; And send control signal on high-voltage electric pump 5 and each electric control reversing valve 6,7,8; Make high-voltage electric pump 5 start, stop; Solenoid directional control valve 6,7,8 opens or closes or the fuel feeding oil mass and the delay time (being jack cylinder rising or decline or pressurize) of each jack are controlled in off-load, and the synchronization error (being the poor of displacement maximum value and minimum value) of each fulcrum of bridge is remained in the scope of setting, exceeds setting value in case the synchronization error precision occurs; System's hard stop and prompting are reported to the police, and can guarantee that like this bridge structure is in synchronization lifting process safe property and reliability.The display screen of said computer 4 is the display monitoring parameter in real time, as: shift value and synchronization error value, force value and pressure mean values make operator can intuitively understand bridge up-down situation.
As shown in Figure 3; The structural representation of the present invention's 256 channel modularized group shots: with bridge synchronous lifting 16 channel modularized group shots is a modular unit; Through cable current network switchboard 3 is linked to each other with the network switch 3 of next modular unit; And the like, can a plurality of modular units be combined into together like this, promptly formed the LAN system; In the combination in any system of 8---256 road, can and become at single section, multiterminal face and reach the synchronous lifting bridge on the end face bridge and carry out to change control.
The present invention is because said separate unit direct connection micro hydraulic control gear structure; Guaranteed micro hydraulic pump group can with jack 13 direct connections; Can control rising or the decline or the pressurize of jack 13 through computer; And on the 8---256 road system's combination in any, realize bridge synchronous lifting multichannel modular combination system.
Because the present invention controls the synchronization of jacking up of each jack accurately through said electric control reversing valve; Said high-voltage electric pump 5 needn't carry too much jack; Can adopt the micropump of advantages of small volume; Make that the volume of separate unit direct connection micro hydraulic control gear is little, in light weight, said jack also can adopt ultrathin jack.Complete machine can be fixed on the hand bracket platform of setting up or on the bridge pier easily, and shorter with the distance of jack 13, and pipeline 16 is generally in 2～4 meters scopes.Selector valve contains one-way valve can prevent any type of leakage, therefore can realize ultrahigh pressure, zero leakage, thereby guaranteeing effectively and for a long time to keep in the bridge lifting supports.Use a computer precise synchronization control carried out in the displacement of jack and pressure, utilize control computer show in real time each parameter variation and can time update and setting, simple to operate, automaticity is high.And use jack 13 and displacement transducer 14 separated type modes, the measurement of sensor 14 not to receive the influence of jack structure restriction and immerge, and synchronization control is accurate, and engineering cost is low.Therefore use the present invention can be not interrupting under the highway communication situation, according to bridge structure, number of support points and requirement, can be on the 8---256 road system's combination in any, accomplishes multibreak, become quick, the secure synchronization lifting of section and long continuous bridge.
More than direct connection micro hydraulic pump combined control system provided by the present invention and control gear thereof have been carried out detailed introduction; Having used concrete example among this paper sets forth principle of the present invention and mode of execution; Above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof; The present invention program also can be applied to realize in other the realm of building construction the occasion of synchronous lifting, moves like building translation lifting, horizontal load etc.; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and application area, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. direct connection micro hydraulic pump combined control system; Comprise direct connection micro hydraulic control gear; Said direct connection micro hydraulic control gear comprises high-voltage electric pump, electric control reversing valve, fuel tank and jack; The output of said high-voltage electric pump connects said electric control reversing valve; Said electric control reversing valve contains one-way valve, and the output terminal pipeline of said electric control reversing valve is connected to said jack, near said jack place displacement transducer is being installed; Electric control reversing valve, high-voltage electric pump and displacement transducer in each direct connection micro hydraulic control gear link to each other with programmable automatic controller through cable respectively, and are connected to control computer through said programmable automatic controller.
2. direct connection micro hydraulic pump combined control system according to claim 1; It is characterized in that: also be provided with switchboard between said programmable automatic controller and the control computer, organize direct connection micro hydraulic control gear more and be connected to said control computer through the switchboard that links to each other.
3. direct connection micro hydraulic pump combined control system according to claim 1; It is characterized in that: the output cable of said electric control reversing valve, displacement transducer is linked in the terminal box, links to each other with said programmable automatic controller after each signal is focused on a cable.
4. according to claim 1 or 2 or 3 described direct connection micro hydraulic pump combined control systems; It is characterized in that: also be in series with shunting device in the pipeline between the output terminal of said electric control reversing valve and the said jack, be connected with pressure transducer on the said shunting device.
5. direct connection micro hydraulic pump combined control system according to claim 4 is characterized in that: said shunting device adopts the polylinker diverter valve.
6. according to claim 1 or 2 or 3 described direct connection micro hydraulic pump combined control systems, it is characterized in that: also be in series with manual throttle valve in the pipeline between the output terminal of said electric control reversing valve and the said jack; Said high-voltage electric delivery side of pump also is connected with relief valve.
7. according to claim 1 or 2 or 3 described direct connection micro hydraulic pump combined control systems; It is characterized in that: said electric control reversing valve comprise a two position two-way valve and with the corresponding 3-position-3-way valve of said jack number; Said each valve is connected in said high-voltage electric delivery side of pump in parallel, and the output terminal of said 3-position-3-way valve links to each other with each jack through pipeline.
8. direct connection micro hydraulic control gear; It is characterized in that: comprise high-voltage electric pump, electric control reversing valve and jack; The output of said high-voltage electric pump connects said electric control reversing valve; Said electric control reversing valve contains one-way valve; The output terminal pipeline of said electric control reversing valve is connected to said jack, and the electric control reversing valve in the direct connection micro hydraulic control gear, high-voltage electric pump and displacement transducer link to each other with programmable automatic controller through cable respectively, and are connected to control computer through said programmable automatic controller.
9. direct connection micro hydraulic control gear according to claim 8; It is characterized in that: also be in series with shunting device and manual throttle valve in the pipeline between the output terminal of said electric control reversing valve and the said jack, be connected with pressure transducer on the said shunting device; Said high-voltage electric delivery side of pump also is connected with relief valve.
10. direct connection micro hydraulic control gear according to claim 8; It is characterized in that: said electric control reversing valve comprise a two position two-way valve and with the corresponding 3-position-3-way valve of said jack number; Said each valve is connected in said high-voltage electric delivery side of pump in parallel, and the output terminal of said 3-position-3-way valve links to each other with each jack through pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810211581 CN101676572B (en) | 2008-09-19 | 2008-09-19 | Directly-connected minitype hydraulic-pump combined control system and control device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810211581 CN101676572B (en) | 2008-09-19 | 2008-09-19 | Directly-connected minitype hydraulic-pump combined control system and control device thereof |
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| CN101676572A CN101676572A (en) | 2010-03-24 |
| CN101676572B true CN101676572B (en) | 2012-12-26 |
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| CN102192206A (en) * | 2011-05-24 | 2011-09-21 | 中国重型机械研究院有限公司 | Hydraulic dynamic synchronization control and position compensation system |
| CN102278301A (en) * | 2011-09-14 | 2011-12-14 | 天津泰瑞救援装备有限公司 | Electrical control hydraulic pump |
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| CN103135512B (en) * | 2011-12-02 | 2015-10-21 | 中铁隧道集团有限公司 | Shield structure electro-hydraulic control system comprehensive test platform |
| CN102642790B (en) * | 2012-04-19 | 2015-10-14 | 赵皓 | A kind of computer-controlled hydraulic jacking system |
| CN102915049B (en) * | 2012-10-30 | 2015-09-09 | 青岛同辉汽车技术有限公司 | Compression type garbage truck pressure control device |
| CN108408637B (en) * | 2018-04-11 | 2024-04-19 | 凌云(宜昌)航空装备工程有限公司 | Multi-station synchronous lifting control system for lifting of airplane and operation method |
| CN108726420A (en) * | 2018-07-12 | 2018-11-02 | 西安飞豹科技有限公司 | A kind of aircraft jack high-precise synchronization lift control system and control method |
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Patent Citations (6)
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|---|---|---|---|---|
| SU876996A1 (en) * | 1980-09-27 | 1981-10-30 | Всесоюзный научно-исследовательский институт транспортного строительства | Device for automatic control of operating duty of feed drive of working member of entry-driving shield |
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