CN1235233A - Method for continuously upward constructioning and machinery system therefor - Google Patents
Method for continuously upward constructioning and machinery system therefor Download PDFInfo
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- CN1235233A CN1235233A CN 98108615 CN98108615A CN1235233A CN 1235233 A CN1235233 A CN 1235233A CN 98108615 CN98108615 CN 98108615 CN 98108615 A CN98108615 A CN 98108615A CN 1235233 A CN1235233 A CN 1235233A
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Abstract
A continuously lifting-up construction method includes such technological steps as cutting steel cables, no-load test, installing connector, connecting lifting tool with structural member and automatic, continuous and synchronous lifting while automatic lowering down of system with load. Its construction machine system is composed of master consol, pump station control case, continuous lifting pump station and hydraulic jack for continuous lifting, which are sequentially connected according to control sequence. Its advantages include high lifting speed, high power of lifting heavy load and automatic, continuous and synchronous lifting-up and lowering-down. It is used for lifting prefabricated beam of bridge or large structural member quickly.
Description
The present invention relates to a kind of construction techniques and equipment thereof, particularly be applicable to the continuous lifting job practices and the construction equipment thereof of suspension bridge, the beam prefabricated fine strain of millet of cable stayed bridge and large-scale component fast hoisting engineering.
At present, the hoisting way of nearly all hydraulic pressure lift engineering all is a discontinuous, causes that hoisting velocity is slow, long in time limit, cost is high.
The object of the present invention is to provide that a kind of hoisting velocity is fast, the lifting tonnage is big, and realized that automatic control promotes synchronously continuously and band carries a continuous lifting job practices and a construction equipment system thereof that descends.
For reaching above-mentioned purpose, the activities of continuous lifting job practices of the present invention is:
(1) steel strand blanking: during the steel strand blanking, accomplishing of must trying one's best is isometric,
(2) unloaded debugging:
(3) lashing: the steel strand correct position that should guarantee to pass ground tackle hole on each anchor clamp and the jack is errorless, and the phenomenon that must not produce intersection, disturbs guarantees that steel strand are isometric to penetrate;
(4) mounted connector: when the pressing plate screw of the reverse anchor slab on the connector is installed, must tighten, prevent that intermediate plate from getting loose;
(5) suspender is connected with member;
(6) automatic, continuous synchronization promotes, and the steel strand in the traction are closed automatically;
(7) system's band carries automatic decline.
The construction equipment system by master station, pumping plant control cabinet, continuously promote pumping plant, promote hydraulic jack continuously and constitute, they connect successively by control sequence, 4 continuous lift pumps, each promotes 2 of pumping plant controls continuously and promotes hydraulic jack continuously in described master station control 1---4 pumping plant control cabinet and 1---.
It realizes that the principle that automatic continuous synchronization promotes is: (referring to Fig. 1)
The common control mode of this worker method construction equipment system is that two of pumping plant controls promote jack continuously, one cover control system is controlled automatically to one or more pumping plant, system carries out continuously, promotes synchronously is to come the synchronization action in the stroke is controlled by the stroke sensing element on the continuous lifting jack, (descending) is when piston all reaches lift stroke on all jack, contact travel switch, promptly finish one and promote action synchronously; Simultaneously, with signal feedback to master station, by the control of master station control pumping plant down (on) the piston band carries rising, goes up the backhaul of delaying time of (descend) piston; When all following (on) when piston all reaches lift stroke, finish once automatically, continuously, the process that promotes synchronously, need not manual intervention in the whole lifting process.
The present invention's promote continuously job practices and construction equipment system have the following advantages:
1, hoisting velocity is fast, can reach 30m/h;
2, the lifting tonnage is heavy, and system's maximum lifting tonnage is 1600t;
3, system can promote jack continuously to 2,4 or 8 and carries out continuous synchronization and promote automatically
Control promotes to realize continuous synchronization;
4, the steel strand in the traction are closed automatically, and are reusable;
5, system itself can be with to carry synchronously and descend automatically, and decrease speed is 9.44m/h;
6, lifting steadily, take that construction space is few, easy and simple to handle, safety.
Thereby this worker method is widely used in a large amount of fast hoisting engineerings that comprises bridge precast beam beam sections such as suspension bridge, cable stayed bridge and the fast hoisting engineering of large-scale component.
Below in conjunction with drawings and Examples the present invention's the continuous Hoisting System job practices and the feature of construction equipment thereof are described further.
Fig. 1: promote construction equipment system architecture schematic diagram continuously;
Fig. 2: promote the job practices process chart continuously;
Fig. 3: promote the hydraulic jack structural representation continuously;
Fig. 4: spike structural representation;
Fig. 4-I rod-type spike Fig. 4-II drum type brake spike
Embodiment:
A kind of continuous lifting job practices and construction equipment system.
As shown in Figure 1, the construction equipment system of this system by master station A, pumping plant control cabinet B, continuously promote pumping plant C, promote hydraulic jack D continuously and constitute, they connect successively by control sequence, 4 pumping plant control cabinet B of described master station A control, 1 continuous lift pump C of each pumping plant control cabinet control, each promotes 2 of pumping plant controls continuously and promotes hydraulic jack D continuously.
Described continuous lifting hydraulic jack D structure as shown in Figure 3, should promote hydraulic jack D continuously and include main jack, little jack, clamper, described main jack has the main jack (8) of going up and following main jack (2), little jack has the little jack (10) of going up and following little jack (5), clamper has last clamper (9) and lower gripper (3), on, following main jack (8), (2) fuse by spike (6), hydraulic lock (7) is arranged respectively on it, (1), on, following little jack (10), (5) by connecting rod (13), (16) respectively with last, following main jack (8), (2) piston (14), (19) link to each other, on, lower gripper (9), (3) be positioned on respectively, following main jack (8), (2) piston (14), (19) on, by top tube connecting rod (12), (15) with last, following little jack (10), (5) be fixedly linked, four exits of Synchronization Control calutron (18) are respectively with last, following main jack (8), (2) sensing element on (11), (17) continuous formation.
Its job practices activities is:
(1) steel strand blanking: be guaranteed for making this worker method speed of application, during the steel strand blanking, accomplishing of must trying one's best is isometric, and does some signs thereon according to the practice of construction situation;
(2) unloaded debugging: system's facility should carry out on-line debugging before use, guarantee that the action of system's facility adheres to specification; The response of jack continuous action comes from the adjusting of its upper stroke switch position;
(3) lashing: the steel strand correct position that should guarantee to pass ground tackle hole on each anchor clamp and the jack is errorless, the phenomenon that must not produce intersection, disturbs;
(4) mounted connector: when the pressing plate screw of the reverse anchor slab on the connector is installed, must tighten, prevent that intermediate plate from getting loose;
(5) suspender is connected with member;
(6) automatically, continuous synchronization promotes, steel strand in the traction are closed automatically: this continuous Hoisting System is carried out continuously, is promoted synchronously and realize by continuous lifting jack D, promote jack continuously and carry out in the weight lifting process, upper and lower clamper (9), (3) are in the stressed state of nature.When last main jack (8) when exerting oneself, last clamper (9) wedging, main jack (2) backhaul down, after finishing a lifting process, main jack (2) is exerted oneself down, and main jack (8) backhaul is gone up in lower gripper (3) wedging, finish another lifting process, moving in circles like this puts member or continuous lifting of weight in place.For the control of continuous synchronization (being the action of upper and lower main jack and upper and lower clamper), be to finish by stroke sensing element (11), (7) on the continuous lifting jack.Control procedure is as follows: (descending) when piston all reaches lift stroke, contacts travel switch on all jack, promptly finishes one and promotes action synchronously; Simultaneously, with signal feedback to master station A, by master station A control pumping plant C control down (on) main jack promote down (on) the piston band carries rising, goes up the backhaul of delaying time of (descend) piston; When all following (on) when piston all reaches lift stroke, finish once automatically, continuously, lifting process synchronously, move in circles like this, member promoted continuously put in place.Simultaneously, in lifting process, the steel strand that utilize the closing quotation device to draw are closed automatically.
(7) system's band carries automatic decline: this process also realizes by continuous lifting jack D, after the member lifting puts in place, little jack (10) in the operation, to go up clamper (9) and open, and go up main jack (8) piston sky and walk a stroke, little jack (10) makes clamper (9) wedging in the operation, operation is little jack (5) down, lower gripper (3) is unclamped, go up main jack (8) backward stroke of the piston, finishing once, band carries the decline process; Main jack (2) piston sky is walked a stroke down, operate little jack (5) down again, with lower gripper (3) wedging, little jack (10) in the operation, clamper (9) is unclamped, following main jack (2) backward stroke of the piston, finishing once again, band carries the decline process, so move in circles, finish continuous band and carry decline.Upper and lower main jack in the whole decline process, the control of upper and lower little jack action also is to finish by the stroke sensing element on the continuous lifting jack, and the control procedure step is with promoting continuously, and only direction changes decline into.
Claims (7)
1, a kind of continuous lifting job practices, it is characterized in that: its job practices activities is:
(1) steel strand blanking: during the steel strand blanking, accomplishing of must trying one's best is isometric;
(2) unloaded debugging;
(3) lashing: the steel strand correct position that should guarantee to pass ground tackle hole on each anchor clamp and the jack is errorless, and the phenomenon that must not produce intersection, disturbs guarantees that steel strand are isometric to penetrate;
(4) mounted connector: when the pressing plate screw of the reverse anchor slab on the connector is installed, must tighten, prevent that intermediate plate from getting loose;
(5) suspender is connected with member;
(6) automatic, continuous synchronization promotes, and the steel strand in the traction are closed automatically;
(7) system's band carries automatic decline.
2, the used construction equipment system of continuous lifting job practices as claimed in claim 1, it is characterized in that: this system by master station A, pumping plant control cabinet B, continuously promote pumping plant C, promote hydraulic jack D continuously and constitute, they connect successively by control sequence, 4 continuous lift pump C, each promotes 2 of pumping plant controls continuously and promotes hydraulic jack D continuously in described master station A control 1---4 pumping plant control cabinet B and 1---.
3, the used construction equipment of continuous Hoisting System job practices as claimed in claim 2 system, it is characterized in that: described continuous lifting hydraulic jack D includes main jack, little jack, clamper, described main jack has the main jack (8) of going up and following thousand main jin tops (2), little jack has the little jack (10) of going up and following little jack (5), clamper has last clamper (9) and lower gripper (3), on, following main jack (8), (2) fuse by spike (6), hydraulic lock (7) is arranged respectively on it, (1), on, following little jack (10), (5) by connecting rod (13), (16) respectively with last, following main jack (8), (2) piston (14), (19) link to each other, on, lower gripper (9), (3) be positioned on respectively, following main jack (8), (2) piston (14), (19) on, by top tube connecting rod (12), (15) with last, following little jack (10), (5) be fixedly linked, four exits of Synchronization Control calutron (18) are respectively with last, following main jack (8), (2) sensing element on (11), (17) link to each other.
4, the used construction equipment of continuous Hoisting System job practices as claimed in claim 3 system, it is characterized in that: the spike (6) of described continuous lifting hydraulic jack D is a kind of bar type structure spike, the upper and lower end cap (20) of the ring shape that this spike fuses by support column (21) with support column, (22) constitute, the cross section of described support column (21) is circular oval or square or polygon, and its number is the 3-8 bar.
5, the used construction equipment of continuous Hoisting System job practices as claimed in claim 3 system, it is characterized in that: the spike (6) of described continuous lifting hydraulic jack D is the hollow circle tube that a kind of side has window (23), and the window on the side (23) can have 1-3.
6, continuous Hoisting System job practices as claimed in claim 1, it is characterized in that: described continuous synchronization promotes and realizes by continuous lifting jack D, promote jack D continuously and carry out in the weight lifting process, upper and lower clamper (9), (3) are in the stressed state of nature.When last main jack (8) when exerting oneself, last clamper (9) wedging, main jack (2) backhaul down, after finishing a lifting process, main jack (2) is exerted oneself down, and main jack (8) backhaul is gone up in lower gripper (3) wedging, finish another lifting process, moving in circles like this puts member or continuous lifting of weight in place.For the control of continuous synchronization (being the action of upper and lower main jack and upper and lower clamper), be to finish by stroke sensing element (11), (7) on the continuous lifting jack.Control procedure is as follows: (descending) when piston all reaches lift stroke, contacts travel switch on all jack, promptly finishes one and promotes action synchronously; Simultaneously, with signal feedback to master station A, by master station A control pumping plant C control down (on) main jack promote down (on) the piston band carries rising, goes up the backhaul of delaying time of (descend) piston; When all following (on) when piston all reaches lift stroke, finish once automatically, continuously, lifting process synchronously, move in circles like this, member promoted continuously put in place.
7, continuous Hoisting System job practices as claimed in claim 1, it is characterized in that: described system band carries automatic decline process to be realized by continuous lifting jack D, after the member lifting puts in place, little jack (10) in the operation, to go up clamper (9) opens, go up main jack (8) piston sky and walk a stroke, little jack (10) makes clamper (9) wedging in the operation, operation is little jack (5) down, lower gripper (3) is unclamped, go up main jack (8) backward stroke of the piston, finishing once, band carries the decline process; Main jack (2) piston sky is walked a stroke down, operate little jack (5) down again, with lower gripper (3) wedging, little jack (10) in the operation, clamper (9) is unclamped, following main jack (2) backward stroke of the piston, finishing once again, band carries the decline process, so move in circles, finish continuous band and carry decline.Upper and lower main jack in the whole decline process, the control of upper and lower little jack action also is to finish by the stroke sensing element on the continuous lifting jack, and the control procedure step is with promoting continuously, and only direction changes decline into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98108615 CN1235233A (en) | 1998-05-08 | 1998-05-08 | Method for continuously upward constructioning and machinery system therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98108615 CN1235233A (en) | 1998-05-08 | 1998-05-08 | Method for continuously upward constructioning and machinery system therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1235233A true CN1235233A (en) | 1999-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98108615 Pending CN1235233A (en) | 1998-05-08 | 1998-05-08 | Method for continuously upward constructioning and machinery system therefor |
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| CN (1) | CN1235233A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453253A (en) * | 2014-12-03 | 2015-03-25 | 浙江精工钢结构集团有限公司 | Construction device and construction method for restricting horizontal displacement of lifted structure |
| CN104495682A (en) * | 2014-12-01 | 2015-04-08 | 柳州市桥厦工程管材有限公司 | Automatic load descending protection equipment of lifting jack |
-
1998
- 1998-05-08 CN CN 98108615 patent/CN1235233A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495682A (en) * | 2014-12-01 | 2015-04-08 | 柳州市桥厦工程管材有限公司 | Automatic load descending protection equipment of lifting jack |
| CN104453253A (en) * | 2014-12-03 | 2015-03-25 | 浙江精工钢结构集团有限公司 | Construction device and construction method for restricting horizontal displacement of lifted structure |
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