CN109930495B - Bridge girder erection machine and application method thereof - Google Patents
Bridge girder erection machine and application method thereof Download PDFInfo
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- CN109930495B CN109930495B CN201910301593.8A CN201910301593A CN109930495B CN 109930495 B CN109930495 B CN 109930495B CN 201910301593 A CN201910301593 A CN 201910301593A CN 109930495 B CN109930495 B CN 109930495B
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Abstract
The invention discloses a bridge girder erection machine and a use method thereof, the bridge girder erection machine is characterized in that an erected hanging beam trolley is of a hollow structure, a reversing valve for adjusting the water level is arranged in the hanging beam trolley, the reversing valve is controlled by a signal obtained by a position sensor, and the gravity center of the hanging beam trolley is further adjusted, so that the strength of the hanging beam trolley can be enhanced, the power consumption of the moving hanging beam trolley can be saved, the risk of causing the transverse inclination or the falling of a beam body can be reduced by adjusting the reversing valve in the hanging beam trolley, and the bridge girder erection machine is simple in structure, safe and reliable. In addition, the application also relates to a use method of the bridge girder erection machine, through the construction method, the construction progress of the bridge girder erection machine can be greatly improved, and the girder erection rate of the girder hoisting trolley is greatly improved when the deviation of the horizontal liquid level and the deviation of the X axial direction and the Y axial direction are less than or equal to the safe set degree.
Description
Technical Field
The invention relates to a bridge girder erection machine, belongs to the technical field of bridge construction auxiliary equipment, and particularly relates to a bridge girder erection machine and a use method of the bridge girder erection machine.
Background
With the social and economic development of China, the traffic volume is increased in a geometric progression, and the existing bridge is built by the bridge girder erection machine under the old design specification, so that the current engineering progress requirement is difficult to meet. The bridge erecting machine belongs to the field of cranes and has the main function of lifting beam pieces, conveying the beam pieces to a designated position and putting the beam pieces down. However, the bridge girder erection machine is very different from a general crane, the construction requirement is harsh, and the bridge girder travels on a beam piece or is called longitudinal movement, and the bridge girder erection machine is divided into a plurality of bridge girders for erecting public roads, a conventional railway bridge, a passenger-dedicated railway bridge and the like. At present, the existing bridge girder erection machine has poor adaptability of construction scenes and needs a large floor area during construction in the using process, a square wood support pad is usually adopted and is sealed on two sides of a pier top by a cable rope, the gravity center of the bridge girder erection machine can easily move, the bridge girder erection machine is turned over, and therefore safety accidents occur, particularly, when wind power is increased, the bridge girder erection machine stops construction, and the engineering progress is influenced. In addition, the existing bridge girder erection machine has the problems that the lifting bridge is heavy, the moving speed is low during construction, the service life of equipment is influenced due to overheating of a hydraulic system and the like in the construction process, and the construction progress is slowed down.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the bridge girder erection machine which has a simple structure and stable gravity center, can observe and adjust the gravity center deviation in real time and prevent the overheating of a hydraulic system caused by overlong construction time.
In order to solve the technical problems, the invention adopts the following technical scheme:
a bridge girder erection machine comprises a first hanging beam trolley, a second hanging beam trolley, a third hanging beam trolley, a fourth hanging beam trolley, a horizontal frame, adjustable support legs, a first transverse moving trolley, a second transverse moving trolley, a third transverse moving trolley, a fourth transverse moving trolley and a safety protection monitoring system; the device is characterized in that the hanging beam trolley is of a hollow structure, a water inlet is formed in the upper end of the hanging beam trolley, a water outlet is formed in the lower section of the hanging beam trolley, the hanging beam trolley is further provided with eight position sensors which can be switched on in a working mode, and every two of the eight position sensors are respectively positioned at four corners of the hanging beam trolley and used for monitoring position deviation of a horizontal plane; the bottom of the inner cavity of the hanging beam trolley is provided with two partition plates, the two partition plates divide the inner cavity of the hanging beam trolley into four closed cavities, four reversing valves are arranged on the partition plates corresponding to the four cavities, and the four reversing valves are used for controlling the flow of water among the four closed cavities; the four reversing valves are connected with a controller, and the controller controls the reversing valves to be disconnected according to detection signals of the position sensors.
As a further improvement of the above technical solution: the first hanging beam trolley, the second hanging beam trolley, the third hanging beam trolley and the fourth hanging beam trolley are sequentially arranged above the horizontal frame; the adjustable supporting legs are positioned at the bottoms of the two sides of the horizontal frame; the first transverse trolley, the second transverse trolley, the third transverse trolley and the fourth transverse trolley are positioned below the horizontal frame; the first transverse trolley, the second transverse trolley, the third transverse trolley and the fourth transverse trolley are positioned above the beam body; the first hanging beam trolley, the second hanging beam trolley, the third hanging beam trolley and the fourth hanging beam trolley are used for transporting a beam body to be erected; water inlets are formed in the upper ends of four cavities in the inner space of the hanging beam trolley; the lower ends of the four cavities in the inner space of the hanging beam trolley are provided with water outlets. As a further improvement of the above technical solution: the eight position sensors are respectively distributed on the front wall, the rear wall, the left wall and the right wall in a group two by two and are used for monitoring the position deviation of the X axis and the Y axis of the horizontal plane.
As a further improvement of the above technical solution: the eight position sensors are respectively electrically connected with the controller, and the four reversing valves are respectively electrically connected with the controller.
As a further improvement of the above technical solution: the controller comprises eight resistors, two diodes, three one-way crystal valve tubes and two capacitors; one end of the first resistor, the third resistor, the fifth resistor and the sixth resistor is connected with a power supply; the first unidirectional crystal valve tube is connected with the first resistor in parallel; the seventh resistor, the third unidirectional crystal valve tube, the second unidirectional crystal valve tube, one end of the second diode and one end of the first capacitor are connected with the other end of the power supply; one end of the second diode is connected with the first capacitor in parallel.
As a further improvement of the above technical solution: the output signal of the controller is also connected with a safety protection monitoring system for controlling the running speed of the hanging beam trolley and the starting and stopping of the hanging beam trolley.
As a further improvement of the above technical solution: the safety protection monitoring system comprises a hanging beam trolley speed control system and a coordination control system; the hanging beam trolley speed control system receives signals of the controller; the controller receives signals of the eight position sensors for comparison, and the first position sensor, the third position sensor, the fifth position sensor and the seventh position sensor are used for measuring and calculating the deviation between the horizontal liquid level and the X axial direction; calculating by adopting a maximum likelihood method to obtain a horizontal error for transmitting to the first check valve and the third check valve to adjust the deviation of the system along the X axial direction; the second position sensor, the fourth position sensor, the sixth position sensor and the eighth position sensor are used for measuring and calculating the deviation between the horizontal liquid level and the Y axis; calculating by adopting a maximum likelihood method to obtain a horizontal error for transmitting to the first check valve and the third check valve to adjust the deviation of the system along the Y-axis direction; when the deviation of the horizontal liquid level from any one of the X axial direction and the Y axial direction is more than 1 degree, the controller controls and keeps the normal running speed of the hanging beam trolley; when the deviation of the horizontal liquid level with the X axial direction and the Y axial direction is less than or equal to 1 degree, the controller controls the running speed of the lifting beam trolley to be increased by 5 percent; when the deviation of the horizontal liquid level with the X axial direction and the Y axial direction is less than or equal to 0.8 degrees, the controller controls and improves the running speed of the hanging beam trolley by 10 percent.
A use method of a bridge girder erection machine comprises the following steps:
(1) arranging the construction site; cleaning a site for the security bridge girder erection machine, and ensuring that a beam hanging trolley of the whole bridge girder erection machine can run along a track parallel to a horizontal plane;
(2) sequentially installing a first hanging beam trolley, a second hanging beam trolley, a third hanging beam trolley, a fourth hanging beam trolley, a horizontal frame, adjustable supporting legs, a track, a first transverse moving trolley, a second transverse moving trolley, a third transverse moving trolley and a fourth transverse moving trolley in the bridge girder erection machine according to engineering requirements;
(3) injecting water into the hanging beam trolley with the hollow structure; injecting water from a water injection port to ensure average water inside the four separated water tanks, wherein the water injection amount accounts for 80 percent of the whole water tank;
(4) the bridge girder erection machine is tried to be hoisted, and particularly, the water quantity in the hoisting beam trolley is uniformly regulated by regulating a reversing valve through a controller, so that the uniformity of the water quantity in the hoisting beam trolley is ensured;
(5) the mounting of the beam section is controlled by the beam erecting trolley, and the advancing speed of the beam erecting trolley is controlled by the controller; the controller receives the deviation of the horizontal liquid level from the X axial direction and the Y axial direction;
(6) releasing the beam section after the beam section reaches the specified installation position;
(7) repeating the steps to ensure that all beam sections for construction are released completely;
(8) releasing water in the water tank through the water outlet;
(9) and dismantling the bridge girder erection machine and cleaning a construction site.
As a further improvement of the above technical solution: after the water in the water tank is released through the water outlet, the water tank can be connected to a heating part of the hydraulic press through a pipeline, so that the hydraulic press is cooled, and the hydraulic system is prevented from being damaged by high temperature for a long time.
As a further improvement of the above technical solution: when the deviation of the horizontal liquid level with the X axial direction and the Y axial direction is less than or equal to 0.5 degrees, the controller controls and improves the running speed of the hanging beam trolley by 20 percent.
Compared with the prior art, the invention has the advantages that:
1. the bridge girder erection machine comprises a hanging beam trolley which is of a hollow structure, the strength of the hanging beam trolley can be improved, the power consumption of the moving hanging beam trolley can be saved, the risk of transverse inclination or beam falling of a beam body can be reduced through adjustment of a reversing valve in the hanging beam trolley, and the bridge girder erection machine is simple in structure, safe and reliable.
2. The bridge girder erection machine can greatly improve the construction progress of the bridge girder erection machine. The common bridge girder erection machine needs to be shut down in medium wind power, and the bridge girder erection machine can still be constructed in similar weather. And when the deviation of the horizontal liquid level and the deviation of the X axial direction and the Y axial direction are less than or equal to the safe set degree, the beam erecting speed of the hanging beam trolley is greatly improved.
3. Before the bridge girder erection machine is dismantled, the used water can be further utilized for cooling a hydraulic system.
Drawings
FIG. 1 is an overall structural view of a bridge girder erection machine;
FIG. 2 is a side view of a bridge girder erection machine;
FIG. 3 is an overall structure view of the hanging beam trolley;
FIG. 4 is a top view of the trolley of the hanging beam;
FIG. 5 is an upper perspective view of the hanging beam trolley;
FIG. 6 is a cross-sectional view of the middle of the trolley of the hanging beam;
FIG. 7 is a side view of the hanging beam trolley;
FIG. 8 is a diagram of a security protection monitoring system;
FIG. 9 is a flow chart of a construction method;
fig. 10 is a control logic configuration diagram of the controller.
In the figure: the system comprises a first hanging beam trolley-1, a second hanging beam trolley-2, a third hanging beam trolley-3, a fourth hanging beam trolley-4, a horizontal frame-5, adjustable supporting legs-6, rails-7, a first transverse trolley-8, a second transverse trolley-9, a third transverse trolley-10, a fourth transverse trolley-11, a safety protection monitoring system-12, a water inlet-13, a water outlet-14, a position sensor-15, a partition-16, a reversing valve-17 and a controller-18.
Detailed Description
Example 1
A bridge girder erection machine comprises a first hanging beam trolley 1, a second hanging beam trolley 2, a third hanging beam trolley 3, a fourth hanging beam trolley 4, a horizontal frame 5, adjustable supporting legs 6, a first transverse trolley 8, a second transverse trolley 9, a third transverse trolley 10, a fourth transverse trolley 11 and a safety protection monitoring system 12; the hanging beam trolley is of a hollow structure, a water inlet is formed in the upper end of the hanging beam trolley, a water outlet 13 is formed in the lower section of the hanging beam trolley, the hanging beam trolley is further provided with eight position sensors 15 which can be switched on in a working mode, and every two of the eight position sensors are respectively positioned at four corners of the hanging beam trolley and used for monitoring position deviation of a horizontal plane; the bottom of the inner cavity of the hanging beam trolley is provided with two partition plates 16, the two partition plates divide the inner cavity of the hanging beam trolley into four closed cavities, four reversing valves 17 are arranged on the partition plates corresponding to the four cavities, and the four reversing valves are used for controlling the flow of water among the four closed cavities; the four reversing valves are connected with a controller 18, and the controller controls the reversing valves to be disconnected according to detection signals of the position sensors.
The first hanging beam trolley, the second hanging beam trolley, the third hanging beam trolley and the fourth hanging beam trolley are sequentially arranged above the horizontal frame; the adjustable supporting legs are positioned at the bottoms of the two sides of the horizontal frame; the first transverse trolley, the second transverse trolley, the third transverse trolley and the fourth transverse trolley are positioned below the horizontal frame; the first transverse trolley, the second transverse trolley, the third transverse trolley and the fourth transverse trolley are positioned above the beam body; the first hanging beam trolley, the second hanging beam trolley, the third hanging beam trolley and the fourth hanging beam trolley are used for transporting a beam body to be erected; water inlets are formed in the upper ends of four cavities in the inner space of the hanging beam trolley; the lower ends of the four cavities in the internal space of the hanging beam trolley are provided with water outlets 14.
As a further improvement of the above technical solution: the eight position sensors are respectively distributed on the front wall, the rear wall, the left wall and the right wall in a group two by two and are used for monitoring the position deviation of the X axis and the Y axis of the horizontal plane.
The eight position sensors are respectively electrically connected with the controller, and the four reversing valves are respectively electrically connected with the controller.
The output signal of the controller is also connected with a safety protection monitoring system for controlling the running speed of the hanging beam trolley and the starting and stopping of the hanging beam trolley.
The safety protection monitoring system comprises a hanging beam trolley speed control system and a coordination control system; the hanging beam trolley speed control system receives signals of the controller; the controller receives signals of the eight position sensors for comparison, and the first position sensor, the third position sensor, the fifth position sensor and the seventh position sensor are used for measuring and calculating the deviation between the horizontal liquid level and the X axial direction; calculating by adopting a maximum likelihood method to obtain a horizontal error for transmitting to the first check valve and the third check valve to adjust the deviation of the system along the X axial direction; the second position sensor, the fourth position sensor, the sixth position sensor and the eighth position sensor are used for measuring and calculating the deviation between the horizontal liquid level and the Y axis; calculating by adopting a maximum likelihood method to obtain a horizontal error for transmitting to the first check valve and the third check valve to adjust the deviation of the system along the Y-axis direction; when the deviation of the horizontal liquid level from any one of the X axial direction and the Y axial direction is more than 1 degree, the controller controls and keeps the normal running speed of the hanging beam trolley; when the deviation of the horizontal liquid level with the X axial direction and the Y axial direction is less than or equal to 1 degree, the controller controls and improves the running speed of the hanging beam trolley by 5 percent.
Example 2
On the basis of the embodiment 1, the controller internally comprises eight resistors, two diodes, three one-way crystal valve tubes and two capacitors; one end of the first resistor, the third resistor, the fifth resistor and the sixth resistor is connected with a power supply; the first unidirectional crystal valve tube is connected with the first resistor in parallel; the seventh resistor, the third unidirectional crystal valve tube, the second unidirectional crystal valve tube, one end of the second diode and one end of the first capacitor are connected with the other end of the power supply; one end of the second diode is connected with the first capacitor in parallel.
Example 3
On the basis of the embodiment 1, when the deviations of the horizontal liquid level and the X-axis direction and the Y-axis direction are less than or equal to 0.8 degrees, the controller controls and improves the running speed of the lifting beam trolley by 10 percent.
Further, the moving speed of the hanging beam trolley in the conventional mode can be set to be 0.01-0.1 m/s according to the specific requirements of a use site.
In addition, different movement rates of the hanging beam trolley and specific thresholds for improving the movement rate of the hanging beam trolley can be set according to specific use scenes of the bridge girder erection machine, such as different use scenes of erecting a highway bridge, a conventional railway bridge, a passenger-dedicated railway bridge and the like.
Example 4
On the basis of the embodiment 1, four or four groups of 16 position sensors are further arranged and respectively positioned at four corners of the hanging beam trolley for monitoring the position deviation of the horizontal plane.
And pressure sensors are arranged on two sides of each partition plate to sense the pressure difference between the two sides and transmit the pressure difference signal to the controller so as to control the opening and closing of the reversing valve. Wherein
Bore diameter phi D of X-axis reversing valve1And Y-axis reversing valve aperture PhiD2，PYRepresenting the pressure difference between the Y axes, PXIs the pressure difference between the X-axes,so that P isrSatisfies the following formula:
finally, a specific method for using the bridge girder erection machine comprises the following steps:
(1) arranging the construction site; cleaning a site for the security bridge girder erection machine, and ensuring that a beam hanging trolley of the whole bridge girder erection machine can run along a track parallel to a horizontal plane;
(2) sequentially installing a first hanging beam trolley, a second hanging beam trolley, a third hanging beam trolley, a fourth hanging beam trolley, a horizontal frame, adjustable supporting legs, a track, a first transverse moving trolley, a second transverse moving trolley, a third transverse moving trolley and a fourth transverse moving trolley in the bridge girder erection machine according to engineering requirements;
(3) injecting water into the hanging beam trolley with the hollow structure; injecting water from a water injection port to ensure average water inside the four separated water tanks, wherein the water injection amount accounts for 80 percent of the whole water tank;
(4) the bridge girder erection machine is tried to be hoisted, and particularly, the water quantity in the hoisting beam trolley is uniformly regulated by regulating a reversing valve through a controller, so that the uniformity of the water quantity in the hoisting beam trolley is ensured;
(5) the mounting of the beam section is controlled by the beam erecting trolley, and the advancing speed of the beam erecting trolley is controlled by the controller;
(6) releasing the beam section after the beam section reaches the specified installation position;
(7) repeating the steps to ensure that all beam sections for construction are released completely;
(8) releasing water in the water tank through the water outlet;
(9) and dismantling the bridge girder erection machine and cleaning a construction site.
As a further improvement of the above technical solution: after the water in the water tank is released through the water outlet, the water tank can be connected to a heating part of the hydraulic press through a pipeline, so that the hydraulic press is cooled, and the hydraulic system is prevented from being damaged by high temperature for a long time.
As a further improvement of the above technical solution: when the deviation of the horizontal liquid level with the X axial direction and the Y axial direction is less than or equal to 0.5 degrees, the controller controls and improves the running speed of the hanging beam trolley by 20 percent.
As a further improvement of the above technical solution: the sequence of the step (3) and the step (2) can be adjusted, namely, the beam erecting trolley is injected with water after the arrangement on a construction site is finished, and then the installation of the bridge erecting machine equipment is finished.
Finally, the bridge girder erection machine can increase the strength of the hanging beam trolley, save the power consumption of the moving hanging beam trolley, reduce the risk of causing the transverse inclination or the falling of the beam body through the adjustment of the internal reversing valve, and has simple structure, safety and reliability. The construction progress of the bridge girder erection machine can be greatly improved. The common bridge girder erection machine needs to be shut down in medium wind power, and the bridge girder erection machine can still be constructed in similar weather. And when the deviation of the horizontal liquid level and the deviation of the X axial direction and the Y axial direction are less than or equal to the safe set degree, the beam erecting speed of the hanging beam trolley is greatly improved, and used water can be further utilized for cooling a hydraulic system.
The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, but not to limit the scope of the present invention by only the embodiments, i.e. all equivalent changes or modifications made in the spirit of the present invention are still within the scope of the present invention.
Claims (4)
1. A bridge girder erection machine comprises a first hanging beam trolley, a second hanging beam trolley, a third hanging beam trolley, a fourth hanging beam trolley, a horizontal frame, adjustable support legs, a first transverse moving trolley, a second transverse moving trolley, a third transverse moving trolley, a fourth transverse moving trolley and a safety protection monitoring system; the method is characterized in that: the hanging beam trolley is of a hollow structure, a water inlet is formed in the upper end of the hanging beam trolley, a water outlet is formed in the lower section of the hanging beam trolley, the hanging beam trolley is further provided with eight position sensors which can be switched on in a working mode, and every two of the eight position sensors are in a group and are respectively positioned at four corners of the hanging beam trolley to monitor the position deviation of a horizontal plane; the bottom of the inner cavity of the hanging beam trolley is provided with two partition plates, the two partition plates divide the inner cavity of the hanging beam trolley into four closed cavities, four reversing valves are arranged on the partition plates corresponding to the four cavities, and the four reversing valves are used for controlling the flow of water among the four closed cavities; the four reversing valves are connected with a controller, and the controller controls the reversing valves to be disconnected according to detection signals of the position sensors; the first hanging beam trolley, the second hanging beam trolley, the third hanging beam trolley and the fourth hanging beam trolley are sequentially arranged above the horizontal frame; the adjustable supporting legs are positioned at the bottoms of the two sides of the horizontal frame; the first transverse trolley, the second transverse trolley, the third transverse trolley and the fourth transverse trolley are positioned below the horizontal frame; the first transverse trolley, the second transverse trolley, the third transverse trolley and the fourth transverse trolley are positioned above the beam body; the first hanging beam trolley, the second hanging beam trolley, the third hanging beam trolley and the fourth hanging beam trolley are used for transporting the beam body to be erected; water inlets are formed in the upper ends of four cavities in the inner space of the hanging beam trolley; the lower ends of four cavities in the internal space of the hanging beam trolley are provided with water outlets; the eight position sensors are respectively distributed on the front wall, the rear wall, the left wall and the right wall in a group two by two and are used for monitoring the position deviation of the X axis and the Y axis of the horizontal plane; the eight position sensors are respectively and electrically connected with the controller, and the four reversing valves are respectively and electrically connected with the controller; the controller comprises eight resistors, two diodes, three one-way crystal valve tubes and two capacitors; one end of the first resistor, the third resistor, the fifth resistor and the sixth resistor is connected with a power supply; the first unidirectional crystal valve tube is connected with the first resistor in parallel; the seventh resistor, the third unidirectional crystal valve tube, the second unidirectional crystal valve tube, one end of the second diode and one end of the first capacitor are connected with the other end of the power supply; one end of the second diode is connected with the first capacitor in parallel; the output signal of the controller is also connected with a safety protection monitoring system and used for controlling the running speed of the hanging beam trolley and the starting and stopping of the hanging beam trolley; the safety protection monitoring system comprises a hanging beam trolley speed control system and a coordination control system; the hanging beam trolley speed control system receives signals of the controller; the controller receives signals of the eight position sensors for comparison, and the first position sensor, the third position sensor, the fifth position sensor and the seventh position sensor are used for measuring and calculating the deviation between the horizontal liquid level and the X axial direction; calculating by adopting a maximum likelihood method to obtain a horizontal error for transmitting to the first check valve and the third check valve to adjust the deviation of the system along the X axial direction; the second position sensor, the fourth position sensor, the sixth position sensor and the eighth position sensor are used for measuring and calculating the deviation between the horizontal liquid level and the Y axis; calculating by adopting a maximum likelihood method to obtain a horizontal error for transmitting to the first check valve and the third check valve to adjust the deviation of the system along the Y-axis direction; when the deviation of the horizontal liquid level from any one of the X axial direction and the Y axial direction is more than 1 degree, the controller controls and keeps the normal running speed of the hanging beam trolley; when the deviation of the horizontal liquid level with the X axial direction and the Y axial direction is less than or equal to 1 degree, the controller controls the running speed of the lifting beam trolley to be increased by 5 percent; when the deviation of the horizontal liquid level with the X axial direction and the Y axial direction is less than or equal to 0.8 degrees, the controller controls and improves the running speed of the hanging beam trolley by 10 percent.
2. The use method of the bridge girder erection machine is characterized in that: using a bridge girder erection machine according to claim 1; the method comprises the following steps:
(1) arranging the construction site; cleaning a place for placing the bridge girder erection machine, and ensuring that a hanging beam trolley of the whole bridge girder erection machine can run along a track parallel to a horizontal plane;
(2) sequentially installing a first hanging beam trolley, a second hanging beam trolley, a third hanging beam trolley, a fourth hanging beam trolley, a horizontal frame, adjustable supporting legs, a track, a first transverse moving trolley, a second transverse moving trolley, a third transverse moving trolley and a fourth transverse moving trolley in the bridge girder erection machine according to engineering requirements;
(3) injecting water into the hanging beam trolley with the hollow structure; injecting water from a water injection port to ensure average water inside the four separated water tanks, wherein the water injection amount accounts for 80 percent of the whole water tank;
(4) the trial hoisting is carried out on the bridge girder erection machine, the water quantity in the hanging beam trolley is uniformly regulated by regulating a reversing valve through a controller, and the uniformity of the water quantity in the hanging beam trolley is ensured;
(5) the mounting of the beam section is controlled by the hanging beam trolley, and the advancing speed of the hanging beam trolley is controlled by the controller; the controller receives the deviation of the horizontal liquid level from the X axial direction and the Y axial direction;
(6) releasing the beam section after the beam section reaches the specified installation position;
(7) repeating the steps to ensure that all beam sections for construction are released completely;
(8) releasing water in the water tank through the water outlet;
(9) and dismantling the bridge girder erection machine and cleaning a construction site.
3. A method of using a bridge girder erection machine according to claim 2, wherein: after the water in the water tank is released through the water outlet, the water tank can be connected to a heating part of the hydraulic press through a pipeline, so that the hydraulic press is cooled, and the hydraulic system is prevented from being damaged by high temperature for a long time.
4. A method of using a bridge girder erection machine according to claim 3, wherein: when the deviation of the horizontal liquid level with the X axial direction and the Y axial direction is less than or equal to 0.5 degrees, the controller controls and improves the running speed of the hanging beam trolley by 20 percent.
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Address after: No.91, Longhai Middle Road, Erqi District, Zhengzhou City, Henan Province, 450000 Patentee after: Zhengzhou Transportation planning Survey, Design and Research Institute Co.,Ltd. Address before: No. 91, Longhai Road, Erqi District, Zhengzhou City, Henan Province 450000 Patentee before: ZHENGZHOU COMMUNICATIONS PLANNING SURVEY & DESIGN INSTITUTE |