Rotary di saggregator for excavators and operating machines in general

Abstract

A rotary disaggregator for an operating machine, such as an excavator, comprising a support structure, a single rotating drum comprising a plurality of teeth and a drive unit for the rotating drum. The support structure includes a connection plate which defines a connection plane with respect to the operating machine and comprises a lateral arm, on which the rotating drum is rotatably supported. The rotation axis (X) of the conical drum is inclined with respect to the connection plane in such a manner that a generatrix of the rotating drum is essentially parallel with the connection plane.

1 . A rotary disaggregator for an operating machine, such as an excavator, comprising a support structure which can be connected to a movable arm of the operating machine, a rotating drum comprising a plurality of teeth and a drive unit which is configured to rotate the rotating drum about a rotation axis (X), wherein the rotating drum has a frustoconical shape, the support structure comprising a connection plate which defines a connection plane (a) with respect to the operating machine, the connection plate being configured to fix the rotary disaggregator to the arm of the operating machine in such a manner that the connection plane (a) is substantially perpendicular to the arm of the operating machine, and comprising a support arm, on which the rotating drum is rotatably supported, the rotation axis (X) being inclined with respect to the connection plane (a) in such a manner that a generatrix (Y) of the frustoconical shape defined by the rotating drum is essentially parallel with the connection plane (a), the generatrix (Y) being arranged at an end of the rotary disaggregator opposite the connection plate. 
     
     
         2 . The rotary disaggregator according to  claim 1 , wherein the rotating drum defines a base surface which is opposite along the rotation axis (X) with respect to the end, and comprises a plurality of additional teeth. 
     
     
         3 . The rotary disaggregator according to  claim 1 , wherein the frustoconical shape defined by the rotating drum has a conicity with an angle (β) which is substantially equal to double an angle of inclination (α) which is formed between the rotation axis (X) and the connection plane (a). 
     
     
         4 . The rotary disaggregator according to  claim 3 , wherein the angle of inclination (α) is between 10° and 30°. 
     
     
         5 . The rotary disaggregator according to  claim 3 , wherein the angle of inclination (α) is between 15° and 25°. 
     
     
         6 . The rotary disaggregator according to  claim 1 , wherein the support structure comprises a pair of tapered connection plates which form a pair of walls of the support structure and which extend from the support plate towards the support arm, tapering in a direction away from the support plate. 
     
     
         7 . The rotary disaggregator according to  claim 1 , wherein the teeth define a rotation trajectory with a diameter (D) equal to or greater than an extent of the support plate in a direction perpendicular to the generatrix (Y). 
     
     
         8 . The rotary disaggregator according to  claim 1 , wherein the rotating drum defines a greater diameter (D) and a smaller diameter (d). 
     
     
         9 . The rotary disaggregator according to  claim 8 , wherein the teeth which are arranged in the region of the smaller diameter define such a rotation trajectory that the teeth which are arranged in the region of the smaller diameter (d) project with respect to the connection plate along a direction parallel with the generatrix (Y). 
     
     
         10 . The rotary disaggregator according to  claim 8 , wherein the teeth which are arranged in the region of the greater diameter (D) of the rotating drum do not project with respect to the connection plate along the direction parallel with the generatrix (Y). 
     
     
         11 . The rotary disaggregator according to  claim 1 , wherein the drive unit comprises a hydraulic motor and a reduction gear, preferably of the epicyclic type, wherein the hydraulic motor has a rotation axis (R) which is inclined with respect to the rotation axis (X) of the rotating drum, the reduction gear having a rotation axis which coincides with the rotation axis (X) of the rotating drum. 
     
     
         12 . The rotary disaggregator according to  claim 11 , wherein the rotating drum is hollow, the reduction gear being received inside a cavity which is defined by the rotating drum. 
     
     
         13 . The rotary disaggregator according to  claim 1 , wherein the teeth comprise a coupling element which is connected to an external mantle of the rotating drum and a cutting element which is supported by the coupling element and which is intended to come into contact with a surface which is intended to be processed, the coupling element being configured so as to support the cutting element in such a manner that it extends in an inclined direction with respect to a direction which is normal to the external mantle. 
     
     
         14 . A rotary disaggregator according to  claim 13 , wherein the cutting element has an inclination (γ) with respect to a tangential direction of the mantle in the region of the coupling element between 20° and 70°. 
     
     
         15 . The rotary disaggregator according to  claim 1  when dependent on  claim 8 , wherein the teeth project outwardly from the rotating drum in the region of the smaller diameter (d). 
     
     
         16 . The rotary disaggregator according to  claim 2 , wherein the additional teeth comprise a respective coupling element which is connected to the base surface of the rotating drum and a respective cutting element which is supported by the respective coupling element and which is intended to come into contact with the surface which is intended to be processed, the respective coupling element being configured so as to support the cutting element in such a manner that it extends in an inclined direction with respect to a plane (b) which is defined by the base surface. 
     
     
         17 . The rotary disaggregator according to  claim 1 , comprising a single rotating drum. 
     
     
         18 . The rotary disaggregator according to  claim 17 , wherein the arm comprises a side which is arranged in the axially opposite direction to the rotating drum and which defines an external surface of the arm. 
     
     
         19 . The rotary disaggregator according to  claim 18 , wherein the external surface of the lateral arm extends substantially perpendicularly to the connection plane (a). 
     
     
         20 . The rotary disaggregator according to  claim 18 , wherein an end of the rotating drum is aligned with the side along a direction parallel with the generatrix (Y) or projects with respect to the side along a direction parallel with the generatrix (Y). 
     
     
         21 . The rotary disaggregator according to  claim 18 , wherein the side comprises a lateral wall and a removable covering plate, the lateral wall having an opening which is configured so as to allow access to the drive unit and to be able to be closed by means of the removable covering plate.