FR2565611A1 - Rotary grinder sucking device for cleaning underwater beds - Google Patents

Abstract

The device consists of a combination of a rotor 1 formed by articulated blades 3 rotating at a very high speed and of a suction casing 4 in the form of a pump body supported by rolling bearing members 6 which are adjustable and which are equipped with an opening flat 8 at the front forming a deflector for turning down high vegetation. It is intended for cleaning canals and pools from a water surface, with a minimum of turbidity in order to maintain the initial depth by extraction of the algae, reeds, sand, silt and other fouling material.

Description

 Device rcto-broveuse for cleaning seabed.

 It is intended for cleaning canals and basins from a body of water. with one, minimun. turbidity in order to maintain the initial depth by extracting algae, reeds, sand, mud and other dirt.

 Up to this day, dredging by buckets, skips, percentage, shoveling or the like which caused water pollution and irregular work has been used for these operations.

 the object of the invention eliminates these drawbacks and makes it possible to cut, prune and vacuum all the dirt or pollution of the bottoms including the vases, sand, gravel, algae, grasses and reeds in a single operation without anarchic turbulences which can disturb the 'water.

 It consists of the combination of a rotor formed by articulated blades rotating at very high speed and a suction casing in the shape of a pump body supported by adjustable rolling members and provided with a flap opening to the 'front forming deflector folding tall grass.

 In the accompanying drawing, given by way of nonlimiting example, of one of the embodiments of the object of the invention, the rotary-hoe suction machine is shown seen in elevation and in section.

 The rotor of the rotary macerator sucker is similar to that of the rotary grinders and brush cutters, it rotates in a casing, pump body type, connected to a pumping system with rejection piping.

 The device according to the invention consists of a rotor 1 formed by blades articulated 2 by axes 3 around which they rotate.

 This rotor rotating at high speed allows these blades having a radial position to operate their removal by centrifugal force and their tilting in the event of a hard obstacle. This avoids their rupture or tearing.

 The staggered arrangement of the blades 3 on six generators and the curved shape of their ends makes it possible to cover the entire length of the rotor 1.

 This rotor 1 is driven by any known means.

 The suction casing 4 serves as a support for the rotor 1 and its lateral faces form the bearings of the drive shaft 5.

 This casing 4 has the shape of a pump body in which the mass of entrained water and the crushed materials are propelled by the moving blades forming a turbine. This pump body is associated with a pumping system connected to a discharge pipe.

 Rolling members such as wheels 6 keep the rotor at a determined distance from the bottom 7. These wheels are adjustable in height depending on the nature of the bottom and the work to be done so as not to damage the bearing coating.

 A flap 8 controlled by two jacks 9 allows the tall grass to be folded down near the rotor.

 This grinding head is mounted at the end of a sling which is tiltable in the vertical plane as a function of the depth.

 In the horizontal plane an orientation can be given by simple pressure on the ground, or by manual control.

This underwater roto-shredder suction machine for the rapid cleaning of a canal or basin can be mounted on a floating support of reduced size transportable by road
Depending on the dimensions of the suction unit, it can be mounted on pontoons or barges. With this apparatus it is possible to clean the bottoms by successive passes and without limitation of length, which avoids returning to the treated surfaces.

 However, the shape dimensions and arrangements of the various elements may vary within the limit of equivalents as also the materials used for their manufacture, without changing for this, the general design of one invention which has just been described.

Claims (2)

RLVzNDICA, IQ5IS i Rotary-shredder suction device for cleaning the seabed and more particularly channels and basins with a minimum of turbidity while allowing to cut, grind and vacuum all the dirt polluting the bottom such as algae, grasses, reeds, mud, mud, gravel and sand, in a single operation and without projections or uncontrolled turbulence which can cloud the water, characterized by the combination of a rotor (1) carrying radial blades (2) articulated on a axis (3) with an enveloping pump body (4) forming a suction casing, provided with an opening flap (8) on its front face. 20 Device according to claim 1 characterized in that the suction casing (4) laterally enveloping the rotor forms the bearings supporting the motor shaft (5) and positions the rolling members (6) at adjustable height.  30 Device according to Claim 1, characterized in that the blades (3) with curved sectional ends have an offset position on six generators making it possible to cover the entire length of the rotor, the front face of which is provided with an opening flap (8) forming deflector controlled by cylinders (9).  40 Device according to claim 1, characterized in that the blades (3) with curved ends are mounted, articulated by means of a shaft (5) allowing their functional lifting under the action of the centrifugal force generated by the speed of rotation.  50 Device according to claim 1, characterized in that the pump body is connected to a pumping system and to a discharge pipe.