Beam feeding method suitable for variable-angle short-distance beam moving

Abstract

The invention discloses a beam feeding method suitable for variable-angle short-distance beam moving, the included angle between the longitudinal central axis of a movable beam storage pedestal and the longitudinal central axis of a beam lifting pedestal is 18 degrees, and a walking road of a beam lifting transporter is arranged between the movable beam storage pedestal and the beam lifting pedestal; a walking area of a walking road of the girder lifting transporter is divided into a normal girder moving area, a splayed differential girder moving area and a girder feeding area, when the girder lifting transporter is located in the normal girder moving area for girder moving walking, the ratio of the front wheel running speed to the rear wheel running speed of the girder lifting transporter is 1: 1, and when the girder lifting transporter moves to the splayed differential girder moving area, the ratio of the front wheel running speed to the rear wheel running speed of the girder lifting transporter is 8: 6. When moving to a beam feeding area, the ratio of the running rates of the front and rear wheels is 1: 1. According to the invention, differential control is carried out on the girder lifting transporter, so that the girder lifting transporter can meet the construction requirements of large-angle and short-distance girder moving and feeding during construction.

Description

Technical Field

[0001] The invention relates to the technical field of high-speed railway prefabricated box girder construction, in particular to a beam feeding method suitable for beam shifting with a variable angle and a short distance. Background Art

[0002] Compared with traditional reinforced concrete cast-in-place buildings, prefabricated buildings have obvious advantages because their prefabricated components are produced in factories and assembled on site. They can achieve standardized factory production, controllable quality, high efficiency and speed, save materials without waste, and have no environmental pollution at the production and construction sites. With the acceleration of my country's urbanization construction, in order to save land resources, there are more and more elevated bridges on urban roads, urban light rail and subway lines, and the proportion of prefabricated box girders is also increasing.

[0003] At present, as there are many irregular areas in the prefabricated box beam yard, there is an angle between the beam erection route and the beam storage pedestal, and the angle reaches 18 degrees. The maximum turning angle of the on-site beam handling machine is 0±5° and 90±5°, and in order to protect the hydraulic system, the actual operation on site can only run up to 4.5°. If the existing mode of the on-site beam handling machine is used for beam handling, a running channel of more than 500 meters is required to realize beam feeding. Because the maximum distance of the on-site running channel is only 28m and the minimum distance is only 16.5m, it is far from meeting the needs. Therefore, the existing model cannot meet the on-site variable angle short-distance handling conditions. In order to realize the difference in running distance between the outer and inner sides of the handling machine, realize the large-angle steering of the beam handling machine and start the operation without danger, the only way is to increase the steering angle to meet the on-site working conditions, which requires the transformation of the steering mechanism of the beam handling machine, which is costly and time-consuming. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a beam feeding method suitable for variable angle and short distance beam moving, and to perform differential speed control on the beam lifting and transporting machine so that the construction requirements of large angle and short distance beam moving and feeding can be met during the construction of the beam lifting and transporting machine.

[0005] The technical solution of the present invention is:

[0006] A beam feeding method suitable for shifting beams at variable angles and short distances specifically comprises the following steps:

[0007] (1) First, move the movable beam storage pedestal to the side of the beam lifting pedestal. The beam lifting pedestal is parallel to the beam erection route and is located on the right side of the route. After the movable beam storage pedestal is moved and positioned, the angle between the longitudinal center axis of the movable beam storage pedestal and the longitudinal center axis of the beam lifting pedestal is 18 degrees. Then, a walking path for the beam lifting transporter is arranged between the movable beam storage pedestal and the beam lifting pedestal, so that the beam lifting transporter transports the box beam on the movable beam storage pedestal to the beam lifting pedestal along the walking path;

[0008] (2) The walking area of ​​the walking road of the beam-lifting transporter is divided into a normal beam-moving area, an eight-shaped differential beam-moving area and a feeding beam area. The normal beam-moving area is a walking area where the box beam of the movable beam-storing pedestal is moved along the walking route of the movable beam-storing pedestal to the walking road. The eight-shaped differential beam-moving area is a differential walking area 5-10m after driving out of the normal beam-moving area. The feeding beam area is a walking area set directly above the beam-lifting pedestal. The walking center axis of the walking road in the feeding beam area is parallel to the transverse center axis of the beam-lifting pedestal.

[0009] (3) When the beam-lifting transport machine is in the normal beam-shifting area for beam-shifting, the ratio of the front wheel speed to the rear wheel speed of the beam-lifting transport machine is 1:1; when the beam-lifting transport machine moves to the eight-shaped differential beam-shifting area for beam-shifting, the ratio of the front wheel speed to the rear wheel speed of the beam-lifting transport machine is 8:6; when the beam-lifting transport machine moves to the beam-feeding area for beam-shifting, the ratio of the front wheel speed to the rear wheel speed of the beam-lifting transport machine is 1:1; when the head end of the beam-lifting transport machine moves to the end of the beam-feeding area, the beam-lifting transport machine moves to the beam-erection route, and then the beam-lifting transport machine moves along the beam-erection route toward the beam-feeding direction to feed the beam.

[0010] The running road in the eight-shaped differential beam shifting area is a curved road.

[0011] In the walking road in the described figure-eight differential beam shifting area, the outer beam shifting road is 30-40m long, and the inner beam shifting road is 20-30m long. The tail of the walking road in the figure-eight differential beam shifting area is located on both sides of the beam lifting pedestal.

[0012] In the walking road in the feeding beam area, the outer beam moving road is 9-11m long, the inner beam moving road is 8-9m long, and the end of the feeding beam area is 9-11m away from the longitudinal center axis of the beam lifting pedestal.

[0013] When the beam-lifting transport machine starts to move beams, first select the normal beam-moving mode button and press it. When the head end of the beam-lifting transport machine moves to the end of the normal beam-moving area and the head end of the figure-eight differential beam-moving area, press the pause button of the beam-lifting transport machine, switch the curve beam-moving mode button, and the beam-lifting transport machine walks in a curve walking mode. At this time, the ratio of the front wheel driving speed and the rear wheel driving speed of the beam-lifting transport machine is changed to 8:6. When the head end of the beam-lifting transport machine moves to the end of the figure-eight differential beam-moving area and the head end of the beam-feeding area, press the pause button of the beam-lifting transport machine, switch the normal beam-moving mode button, and the ratio of the front wheel driving speed and the rear wheel driving speed of the beam-lifting transport machine is changed to 1:1 again to perform the beam-moving operation until the head end of the beam-lifting transport machine moves to the end of the beam-feeding area.

[0014] The distance between the two tracks of the walking road in the normal beam shifting area and the feeding beam area is 7.5-8.5 meters, and the distance between the two tracks of the walking road in the figure-eight differential beam shifting area is 8.5-9.5 meters.

[0015] The beam-lifting transporter is provided with four Beidou GPS positioning modules, a memory and a processor. The four Beidou GPS positioning modules and the memory are all connected to the processor. Computer instructions are stored in the memory. The four Beidou GPS positioning modules collect the position of the beam-lifting transporter on the walking road in real time. The area where the four Beidou GPS positioning modules are connected in sequence is the top view of the beam-lifting transporter. The processor extracts the corresponding computer instructions stored in the memory according to the positioning information of the beam-lifting transporter, and then sends them to the central control display screen of the beam-lifting transporter to remind the operator to perform corresponding operations.

[0016] Advantages of the present invention:

[0017] The present invention divides the walking road of the beam-lifting transporter into precise areas, accurately locates the position of the beam-lifting transporter, allows the beam-lifting transporter to run to different area positions, and performs differential control of the wheel driving speed and the rear wheel driving speed, so that the beam-lifting transporter can meet the construction requirements of large-angle and short-distance beam shifting and feeding, and the engine speed of the beam-lifting transporter is normal throughout the whole process without pressure holding, slipping, and idling, so as to achieve the effect of completing beam feeding in one action. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a plan view of a movable beam storage pedestal, a beam lifting pedestal and a walking road of the present invention.

[0019] Figure 2 It is a plan view of the beam lifting and transporting machine of the present invention located in a normal beam shifting area.

[0020] Figure 3 It is a plan view of the beam-lifting transporter of the present invention being completely moved to the eight-shaped differential beam shifting area.

[0021] Figure 4 It is a plan view showing that the head end of the beam lifting transporter of the present invention is moved to the end of the beam feeding area.

[0022] Figure markings: 01- movable beam storage pedestal, 02- beam lifting pedestal, 03- walking road, 31- figure eight differential beam shifting area. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] A beam feeding method suitable for shifting beams at variable angles and short distances specifically comprises the following steps:

[0025] (1) First, move the movable beam storage pedestal 01 to the south side of the beam lifting pedestal 02. The beam lifting pedestal 02 is parallel to the beam erection route and is located on the right side of the route. After the movable beam storage pedestal 01 is moved and positioned, the angle between the longitudinal center axis of the movable beam storage pedestal 01 and the longitudinal center axis of the beam lifting pedestal 02 is 18 degrees. Then, a walking road 03 for the beam lifting transporter is arranged between the movable beam storage pedestal 01 and the beam lifting pedestal 02, so that the beam lifting transporter transports the box beam on the movable beam storage pedestal 01 to the beam lifting pedestal 02 on the north side along the walking road 03;

[0026] (2) The walking area of ​​the walking road 03 of the beam handling machine is divided into a normal beam shifting area, an eight-shaped differential beam shifting area 31 and a beam feeding area. The distance between the two tracks of the walking road 03 in the normal beam shifting area and the beam feeding area is expanded from the existing 6 meters to 8 meters, and the distance between the two tracks of the walking road 03 in the eight-shaped differential beam shifting area 31 is 9 meters, so as to ensure that the deviation of the theoretical analysis can be adjusted on site;

[0027] The normal beam moving area is to move the box beam of the movable beam storage pedestal 01 along the walking route of the movable beam storage pedestal 01 to a walking area on the walking road 03;

[0028] The walking road at the figure-eight differential beam shifting area 31 is a curved road 5m after driving out of the normal beam shifting area. In the walking road at the figure-eight differential beam shifting area 31, the outer beam shifting road length is 35m, and the inner beam shifting road length is 5m. The tail of the walking road 03 at the figure-eight differential beam shifting area 31 is located on both sides of the beam lifting pedestal 02;

[0029] The beam feeding area is a walking area set directly above the beam lifting platform 02. The walking center axis of the walking road 03 in the beam feeding area is parallel to the horizontal center axis of the beam lifting platform 02. In the walking road in the beam feeding area, the outer beam moving road length is 10m, and the inner beam moving road length is 8.5m. The end of the beam feeding area is located 10m north of the longitudinal center axis of the beam lifting platform 02;

[0030] (3) The beam handling machine is provided with four Beidou GPS positioning modules, a memory and a processor. The four Beidou GPS positioning modules and the memory are all connected to the processor. Computer instructions are stored in the memory. The four Beidou GPS positioning modules A0, B0, A1 and B1 collect the position of the beam handling machine on the walking road 03 in real time. The area where the four Beidou GPS positioning modules are connected in sequence is the top view profile of the beam handling machine. Among them, the connection line between the Beidou GPS positioning module A0 and the Beidou GPS positioning module B0 is the end of the beam handling machine, and the connection line between the Beidou GPS positioning module A1 and the Beidou GPS positioning module B1 is the head end of the beam handling machine. The processor extracts the corresponding computer instructions stored in the memory according to the positioning information of the beam handling machine, and then sends them to the central control display screen of the beam handling machine to remind the operator to perform corresponding operations;

[0031] (4) Beam moving and feeding process of beam handling machine:

[0032] S41. When the beam-lifting transporter starts to move the beam, first select the normal beam-moving mode button and press it. The beam-lifting transporter is in the normal beam-moving area and moves the beam. At this time, the ratio of the front wheel speed to the rear wheel speed of the beam-lifting transporter is 1:1 (see Figure 2 );

[0033] S42, when the head end of the beam handling machine moves to the end of the normal beam shifting area and the head end of the figure eight differential beam shifting area 31, the processor extracts the curved beam shifting switching instruction from the memory, and then sends it to the central control display screen of the beam handling machine to remind the operator. The operator presses the pause button of the beam handling machine and switches the curved beam shifting mode button. The beam handling machine moves in the curved walking mode. At this time, the ratio of the front wheel driving speed to the rear wheel driving speed of the beam handling machine is changed to 8:6 (see Figure 3 );

[0034] S43, when the head end of the beam-lifting conveyor moves to the end of the eight-shaped differential beam-moving area 31 and the head end of the beam-feeding area, the processor extracts the normal beam-moving switching instruction from the memory, and then sends it to the central control display screen of the beam-lifting conveyor to remind the operator. The operator presses the pause button of the beam-lifting conveyor and switches to the normal beam-moving mode button. The ratio of the front wheel driving speed to the rear wheel driving speed of the beam-lifting conveyor is re-converted to 1:1 to perform the beam-moving operation until the head end of the beam-lifting conveyor moves to the end of the beam-feeding area (see Figure 4 );

[0035] S44. When the head end of the beam-lifting transporter moves to the end of the beam-feeding area, the beam-lifting transporter moves to the beam-erecting route, and the processor extracts the beam-feeding instruction from the memory, and then sends it to the central control display screen of the beam-lifting transporter to remind the operator. The operator controls the beam-lifting transporter to move along the beam-erecting route in the direction of beam-feeding to achieve beam feeding.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A beam feeding method suitable for beam shifting at variable angles and short distances, characterized in that: The specific steps include: (1) First, move the movable beam storage pedestal to the side of the beam lifting pedestal. The beam lifting pedestal is parallel to the beam erection route and is located on the right side of the route. After the movable beam storage pedestal is moved and positioned, the angle between the longitudinal center axis of the movable beam storage pedestal and the longitudinal center axis of the beam lifting pedestal is 18 degrees. Then, a walking path for the beam lifting transporter is arranged between the movable beam storage pedestal and the beam lifting pedestal, so that the beam lifting transporter transports the box beam on the movable beam storage pedestal to the beam lifting pedestal along the walking path; (2) The walking area of ​​the walking road of the beam-lifting transporter is divided into a normal beam-moving area, an eight-shaped differential beam-moving area and a feeding beam area. The normal beam-moving area is a walking area where the box beam of the movable beam-storing pedestal is moved along the walking route of the movable beam-storing pedestal to the walking road. The eight-shaped differential beam-moving area is a differential walking area 5-10m after driving out of the normal beam-moving area. The feeding beam area is a walking area set directly above the beam-lifting pedestal. The walking center axis of the walking road in the feeding beam area is parallel to the transverse center axis of the beam-lifting pedestal. (3) When the beam-lifting transport machine is in the normal beam-shifting area for beam-shifting, the ratio of the front wheel speed to the rear wheel speed of the beam-lifting transport machine is 1:1; when the beam-lifting transport machine moves to the eight-shaped differential beam-shifting area for beam-shifting, the ratio of the front wheel speed to the rear wheel speed of the beam-lifting transport machine is 8:6; when the beam-lifting transport machine moves to the beam-feeding area for beam-shifting, the ratio of the front wheel speed to the rear wheel speed of the beam-lifting transport machine is 1:1; when the head end of the beam-lifting transport machine moves to the end of the beam-feeding area, the beam-lifting transport machine moves to the beam-erection route, and then the beam-lifting transport machine moves along the beam-erection route toward the beam-feeding direction to feed the beam.

2. A beam feeding method suitable for beam shifting at a variable angle and short distance according to claim 1, characterized in that: The walking road in the described figure eight differential beam shifting area is a curved road.

3. A beam feeding method suitable for beam shifting at a variable angle and short distance according to claim 2, characterized in that: In the walking road in the described figure-eight differential beam shifting area, the outer beam shifting road is 30-40m long, the inner beam shifting road is 20-30m long, and the tail of the walking road in the figure-eight differential beam shifting area is located on both sides of the beam lifting pedestal.

4. A beam feeding method suitable for beam shifting at a variable angle and short distance according to claim 1, characterized in that: In the walking road in the feeding beam area, the outer beam moving road is 9-11m long, the inner beam moving road is 8-9m long, and the end of the feeding beam area is 9-11m away from the longitudinal center axis of the beam lifting pedestal.

5. The beam feeding method applicable to beam shifting at a variable angle and short distance according to claim 2, characterized in that: When the beam-lifting transport machine starts to move beams, first select the normal beam-moving mode button and press it. When the head end of the beam-lifting transport machine moves to the end of the normal beam-moving area and the head end of the figure-eight differential beam-moving area, press the pause button of the beam-lifting transport machine, switch the curve beam-moving mode button, and the beam-lifting transport machine walks in a curve walking mode. At this time, the ratio of the front wheel driving speed and the rear wheel driving speed of the beam-lifting transport machine is changed to 8:

6. When the head end of the beam-lifting transport machine moves to the end of the figure-eight differential beam-moving area and the head end of the beam-feeding area, press the pause button of the beam-lifting transport machine, switch the normal beam-moving mode button, and the ratio of the front wheel driving speed and the rear wheel driving speed of the beam-lifting transport machine is changed to 1:1 again to perform the beam-moving operation until the head end of the beam-lifting transport machine moves to the end of the beam-feeding area.

6. A beam feeding method suitable for beam shifting at a variable angle and short distance according to claim 2, characterized in that: The distance between the two tracks of the walking road in the normal beam shifting area and the feeding beam area is 7.5-8.5 meters, and the distance between the two tracks of the walking road in the figure-eight differential beam shifting area is 8.5-9.5 meters.

7. A beam feeding method suitable for beam shifting at a variable angle and short distance according to claim 5, characterized in that: The beam-lifting transporter is provided with four Beidou GPS positioning modules, a memory and a processor. The four Beidou GPS positioning modules and the memory are all connected to the processor. Computer instructions are stored in the memory. The four Beidou GPS positioning modules collect the position of the beam-lifting transporter on the walking road in real time. The area where the four Beidou GPS positioning modules are connected in sequence is the top view of the beam-lifting transporter. The processor extracts the corresponding computer instructions stored in the memory according to the positioning information of the beam-lifting transporter, and then sends them to the central control display screen of the beam-lifting transporter to remind the operator to perform corresponding operations.

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