Counter weight stroke adjusting system of grab bucket type energy-saving dredge boat

Abstract

The invention discloses a counter weight stroke adjusting system of a counter weight energy-saving grab bucket type energy-saving dredge boat. The system comprises a counter weight steel wire rope connected between a counter weight device and a grab bucket stroke controlling coiling block and further comprises a fixed winch, a fixed pulley set, a plurality of sets of guide pulleys and a displacement tackle. A movable pulley set and a displacement pulley are arranged on the tackle, the counter weight steel wire rope is sequentially wound on the guide pulleys and the displacement pulley, the winch extends out of the tackle to drive the steel wire rope, and the tackle drives the steel wire rope to be wound between the fixed pulley set and the movable pulley set. After the system is adopted in the dredge boat, the stroke of a counter weight device is adjustable, and when the dredge boat works in a water way with the shallow river bed, matching adjustment is carried out in a mode of adjusting the counter weight device to rise. When the boat works in the water way with the deep river bed, matching adjustment can be carried out in a mode of adjusting the counter weight device to descend, and it is ensured that a boat body works in the different water depth environments.

Description

Technical field [0001] The invention relates to energy-saving technology for dredging engineering equipment, in particular to a grab-type energy-saving dredger counterweight stroke adjustment system. Background technique [0002] The work of the grab-type energy-saving dredger is mainly realized by the grab and the grab control reel used to control the action of the grab. [0003] In traditional grab-type energy-saving dredgers, a group of steel wire ropes are wound on the grab control drum, and the grab is fixed on the movable end of the group of steel wire ropes. When the grab needs to be lowered, the clutch on the grab control reel is opened, the grab control reel does not need to be driven by power, and the grab descends under the action of its own gravity, but in order to control the descending speed of the grab, the grab control The speed reel needs to be braked to limit the speed. Since the braking force needs to basically offset the gravity of the grab, the requirements f...

AI Technical Summary

Problems solved by technology

When the grab needs to be lowered, the clutch on the grab-controlled reel is opened, the grab-controlled reel does not need to be driven by power, and the grab falls under the action of its own gravity, but in order to control the falling speed of the grab, the grab control The speed reel needs to be limited by the method of braking

Since the braking force needs to basically offset the gravity of the grab bucket, the requirements for the braking device are high, the production cost is high, the wear of the brake pads in the braking device is fast, and the work cost is high.

When the grab needs to rise, the clutch on the reel is closed, and the power source provides power to the reel to make the reel rotate. The energy required for the rotation of the reel is relatively large to drive the grab to rise. This has extremely high requirements on the power source and can The power consumption is very high, and the effect of energy saving cannot be achieved

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