Double Truss Type Bridge Erection Machine High Security With Hydraulic System

Product Specification

Truss Type Bridge Erection Machine Girder Launcher Crane With Hydraulic System

Product Description

Truss Type Bridge Erection Machine Girder Launcher Crane With Hydraulic System is used in the erection of precast beam bridges for span by span method of construction for precast beam girders like T beam, U beam, etc. This self-beam launcher is suitable for bridge construction over river, valley or highway and so on.
Truss Type Bridge Erection Machine Girder Launcher Crane With Hydraulic System is suitable for the construction of bridge for roads, railways and other bridge erection construction site. Its main function is to lift the prefabricated beams, then transported onto the prefabricated pier. It has big difference from the general cranes. It requests high security.

On-site Installation

Steps for Bridge Machine Via Hole Operation

• The No. 1 crane (the trolley in the forward direction of the bridge erecting machine) runs above the middle support to increase the friction of the middle support wheel to prevent slipping.
• Carry the beam to the back branch.
• The No. 2 crane (the car behind the bridge in the forward direction) is parked at the back support, lifting the 3t counterweight at the end of the beam, and pre-tightening.
• At the same time, start the No. 1 crane, the center support and the beam-carriage at the same time, so that the No. 1 crane retreats, the center support and the beam-carriage move forward; in order to ensure the distance is relatively consistent, you can stop moving forward and adjust each other; Stop, advance the No. 1 crane back to the rear branch, at this time the degree of contraction of the rear cylinder should be 300mm higher than the end of the main beam, and then start the middle support and beam transport flat car at the same time, continue to go through the hole; When moving forward, the crane # 2 of the lifting beam can be slightly forced to tighten the wire rope; when moving forward, the crane # 2 of the lifting beam can lift the weight with force and continue to pass through the hole until the opposite side Stop at the pier; at this time, the commander can bring a skilled worker along the platform on the main beam to the opposite pier, while observing the command adjustment on one side, let the two front legs slowly fall to the width of the pier, and Parallel; then you can send an electric welder to carry the tool to the pier and measure the height of the middle boss of the two pier. Based on this height, first move the 1.2-meter-long front support bundled under the two front support wheel boxes to Panasonic , The commander blows the whistle, the second crane can lift the counterweight End, cut the pre-made steel support according to the actual height, weld two under the 1.2-meter-long front support traverse beam, measure the distance between the two after welding is 4300mm, and ensure the distance between the two main beams is 5500mm. The crane slowly drops, let the two front outrigger wheels fall vertically on the track rail and clamp the rail clamp.

Cleaning And Maintenance

Crane wire ropes must be regularly lubricated according to the specifications, and dirt must be removed before lubrication; bridge crane bearings must always be lubricated, and oiled regularly before winter and summer, and cleaned before oiling. If the temperature is too high, The noise is loud, and it should be carefully inspected and found to be replaced in time; check whether the sound from the motor, electromagnet, etc. is normal, and whether the cam controller is scorched, and if it should be replaced in time; check the brake of the lifting mechanism once a day, and run The brake of the mechanism is inspected every 2 to 3 days; often keep electrical equipment clean, such as resistors, control screens, contactors, etc., to remove internal and external dust and dirt, to prevent the occurrence of leakage, breakdown, short circuit and other undesirable phenomena; Regularly check the connection welds of the main beam and other components. If cracks are found, stop using them immediately, re-weld and repair them, and continue to use them after passing the inspection. Avoid sudden start-up and braking during the use of the bridge crane. Use reverse braking.
Truss Type Bridge Erection Machine Girder Launcher Crane brake should be checked once every shift. The brake should be accurate and the pin should not be jammed. The brake shoe should fit the brake wheel correctly, and the brake shoe clearance should be equal when the brake is released. The wheel regularly checks the rim and tread. When the wear or crack of the rim part reaches 10% thickness, it should be replaced with a new wheel. Check the wear of the rope groove, whether the rim is cracked and whether the pulley is stuck on the shaft; the spreader must be checked regularly; the working performance and life of the various mechanisms of the lubricating bridge machine depend largely on lubrication. For lubrication, maintenance and lubrication of electromechanical products, please refer to the user's manual. Lubricating trolleys, cranes, etc. should be filled with grease once a week. Attention should be paid to broken wire rope. If the broken wire, broken strands or abrasion amount reaches the scrap standard, the new rope should be replaced in time.