Composite underwater power dredging drag harrow

Abstract

The invention discloses a composite underwater power dredging drag harrow. The invention relates to the field of water conservancy environmental protection, in particular to a mechanical disturbance type dredging harrow tool which can be used in muddy coast coastal tidal estuaries, silt-laden rivers and channels. The invention provides a composite underwater power dredging drag harrow which is simple in structure, reliable in layout and capable of improving efficiency. The composite underwater power dredging drag harrow comprises a harrow frame and further comprises a fixed harrow, a power harrow and a gas water tank which are sequentially arranged from front to back, wherein the harrow frame comprises a pair of side plates arranged in parallel, the fixed harrow is fixedly connected between the pair of side plates, the power harrow is movably connected between the pair of side plates, and the gas water tank is fixedly connected between the pair of side plates. The power rake comprises a motor mounting plate, vertical plates are symmetrically arranged at the two ends of the motor mounting plate, limiting shafts are arranged on the upper portions of the vertical plates, rotating shafts are arranged on the lower portions of the vertical plates, arc-shaped holes and rotating holes are formed in the side plates, the limiting shafts are located in the arc-shaped holes, and the rotating shafts are located in the rotating holes. The composite underwater power dredging drag harrow is convenient to install and reliable in desilting.

Description

Technical field [0001] The present invention relates to the field of water conservancy and environmental protection, and more particularly to mechanical disturbance dredging dredging of mechanical disturbances used in the coastal edge of silthed coast, multi-mud river and channel. Background technique [0002] At present, the tidal estuary located in the Silk Sluté, due to the rising seawater, it is rumped up and has been stacked in the riverbed, and the retreat water flows will not be able to reflect the sediment of the drop. Start with its return to the sea, so that the sediment in the river is deposited. There are two prior dredging methods: one is to use a stranded dredging device to perform a method of suction dredging dredging; the second is to use high pressure spray jet 具, implement disturbance dredging dredging methods. Due to the first method of tidal, the construction progress is slow, the engineering cost is high; the second method is difficult to restart in a plate s...

AI Technical Summary

Problems solved by technology

Due to the effect of tides, the first method has slow construction progress and high project cost; the second method is difficult to restart the compacted soil with relatively long silting time, so the work efficiency is low

[0003] The applicant's application number on 2009.11.17 is: 200920255492.3, titled "A Composite Water-spraying Air Seepage Drag Rake", which provides a simple and effective drag rake, however, the structure is complex and the layout is unreasonable

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