Environmentally friendly dredging device with hobbing cutters

An environmentally friendly dredging and hob technology, which is used in mechanically driven excavators/dredgers, earthmoving machines/shovels, construction, etc. Diffusion and other problems to achieve the effect of reducing disturbance

Pending Publication Date: 2018-02-27
NAT ENG RES CENT OF DREDGING TECH & EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the traditional river channel dredging and dredging device works underwater, there are the following problems: (1) when the dredging operation is carried out, the disturbance to the water body will easily cause the re-diffusion

Method used

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  • Environmentally friendly dredging device with hobbing cutters
  • Environmentally friendly dredging device with hobbing cutters
  • Environmentally friendly dredging device with hobbing cutters

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Experimental program
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Embodiment

[0033] like Figure 1 to Figure 5b As shown, the environmental protection dredging device with hob provided by the embodiment of the present invention mainly includes: movable knife box 1, hob shafting 2, driving device 3, transmission gear, suction pipe 5, pin shaft 6, hydraulic cylinder 7 .

[0034] like figure 1 As shown, the movable cutter box 1 is connected with the suction dredge pipe 5 through the pin shaft 6, and the inside of the movable cutter box 1 communicates with the inside of the suction dredge pipe 1; Mud pipe 5 on.

[0035] When digging deep, the relative angle between the dredge pipe 5 and the movable cutter box 1 can be adjusted by controlling the expansion and contraction of the hydraulic cylinder 7; further, the angle range between the center line of the dredge pipe 5 and the horizontal direction can be preferably 30° -50°, such as Figure 2a and Figure 2b shown.

[0036] like image 3 As shown, the lower part of the movable cutter box 1 is open, a...

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Abstract

The invention discloses an environment-friendly dredging device with a hob, which belongs to the technical field of dredging engineering. It includes movable cutter box, hob shafting, driving device, transmission gear, suction pipe, pin shaft and hydraulic cylinder; movable cutter box and suction pipe are connected by pin; both ends of hydraulic cylinder are respectively fixed on movable cutter box and on the mud suction pipe; the hob shaft system includes several rows of hobs that are arranged side by side in the movable knife box and are sequentially connected by transmission gears; the driving device is connected with the hob shaft system. Each row of hobs includes a rotating shaft and cutter teeth arranged helically on the rotating shaft. The tooth profile of the cutter tooth on the axial section is a straight line, the tooth profile on the normal section is a convex curve, and the tooth profile on the end face is an Archimedes spiral. It has very little disturbance to the water flow, and can prevent the stirred up mud from spreading around; at the same time, the cutting depth is controlled by the cutter teeth, and the thickness of the dredging mud layer is controlled. While removing the harmful mud layer, it protects the bottom mud from being destroy.

Description

technical field [0001] The invention relates to the technical field of dredging engineering, in particular to an environment-friendly dredging device with a hob for a self-propelled dredger used for river channel dredging. Background technique [0002] Urban rivers flow slowly and are in a relatively closed environment, and there are common problems such as silt clogging and serious pollution. Silt is the gathering place and storage warehouse of nutrients and pollutants in the river water body, and continuously releases nutrients and pollutants to the water body. The secondary pollution of the water body by the silt has become one of the main reasons for the eutrophication of the river and the outbreak of algae. With the continuous improvement of people's living standards, silt cleaning and ecological management of river courses are an important part of urban construction. [0003] When the traditional river channel dredging and dredging device works underwater, there are t...

Claims

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Application Information

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IPC IPC(8): E02F5/28E02F3/88E02F3/92
CPCE02F3/8866E02F3/92E02F3/9281E02F5/282
Inventor 伍立说张晴波郑琳珠林挺胡京招杨晨吴腾伟兰剑郭涛庄海飞王文魁刘明明
Owner NAT ENG RES CENT OF DREDGING TECH & EQUIP
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