Cutter-suction device based on ultrasonic-assisted rock breaking, and rock breaking method

Abstract

The invention discloses a cutter-suction device based on ultrasonic-assisted rock breaking, and a rock breaking method. The device comprises a cutter-suction dredger cutter-suction device, a connecting device and an ultrasonic-assisted device. The cutter-suction dredger cutter-suction device comprises a bridge frame, a tail shaft, an underwater pump, a suction pipe, a bridge frame pulley, a transverse movement pulley, an underwater motor, a reamer and a reamer shaft. The connecting device comprises an upper cover, a plunger cylinder and a support. The ultrasonic-assisted device comprises an ultrasonic generator, an ultrasonic switch and an ultrasonic device. According to the cutter-suction device based on ultrasonic-assisted rock breaking, and the rock breaking method provided by the invention, through the ultrasonic-assisted device, an ultrasonic cutter bit and a rock achieve resonance, so that the rock forms cracks and fissures, the completeness of the rock is broken, the strength ofthe rock is reduced, and the digging resistance of the reamer is correspondingly reduced; and in addition, from officinal cutting on, the reamer and the ultrasonic device start to work at the same time, so that the excavation ability and the efficiency are improved, the dredging energy consumption is reduced, and the aim on optimizing the cutter-suction dredger cutter-suction device and an application method thereof is finally achieved.

Description

technical field [0001] The invention relates to an ultrasonic-assisted rock breaking device and a rock breaking method, belonging to the technical field of dredging equipment. Background technique [0002] With the rapid development of my country's shipping industry and the vigorous development of infrastructure projects such as ports and waterways, the domestic demand for dredging ships is increasing. Cutter suction dredger is one of the most commonly used dredging ships in dredging engineering. It has the characteristics of continuous operation, high production efficiency and low construction cost, but this feature is limited in rocky conditions. Due to the high strength of the rock and the increased resistance to excavation, the cutter suction device of the cutter suction dredger in the prior art has insufficient rock breaking ability, easy damage, high energy consumption, poor cutting effect on uneven rock and The existing method has problems such as low cutting efficie...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantages of the cutter suction dredger cutter suction device in the prior art, such as insufficient rock-breaking ability, easy damage, high energy consumption, poor cutting effect of uneven rock and existing use methods when dealing with hard rocks. To solve the problem of low cutting efficiency, provide a rock-breaking device and rock-breaking method based on ultrasonic-assisted rock breaking

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