Driving system for at least one auger, kit and method for the installation of same, and snow removal device provided with same

A snow removing device comprising:

• a frame;
• an auger housing supported on the frame and comprising a first opening defining a front opening, a second opening defining a rear opening, a first lateral wall and a second lateral wall;
• at least one auger comprising a shaft element having opposite ends which are respectively rotatably supported by the first lateral wall and the second lateral wall;
• and
• a driving system for driving the at least one auger;
• wherein said driving system for driving the auger comprises:
• at least one driving gear rotatably supported by the frame;
• at least one output gear mounted on the shaft element of the at least one auger, close one of the first lateral wall of the auger housing;
• a roller chain linking the at least one driving gear and the at least one output gear;
• and
• at least one means for tensioning the roller chain comprising at least one self-adjusting chain tensioner;
• wherein a first portion of the driving system for driving the at least one auger is positioned within the auger housing and a second portion of the driving system for driving the at least one auger is positioned outside the auger housing;
• wherein the roller chain is adapted to move across a third opening provided in the auger housing;
• wherein the first portion is covered by a front guard secured to the first lateral wall and forming with the first lateral wall a first casing adapted to prevent snow or debris contained in the auger housing to contact said first portion;
• wherein the front guard is provided with at least one opening adapted to surround a portion of the shaft element of the at least one auger with a play between a periphery of the at least one opening and a periphery of a corresponding portion the corresponding shaft element;
• wherein the play is filled with a filling element and/or covered with a sealing element secured to the front guard or the corresponding portion of the shaft element of the at least one auger;
• wherein the second portion is covered by at least one rear guard forming a casing secured to the frame and/or the auger housing, and adapted to prevent snow or debris present around the snow removing device to contact the said second portion;
• wherein the front guard comprises:
• a first part provided with a front edge having at least one first recess;
• a second part provided with a rear edge having at least one second recess;
• the at least one first recess and the at least one second recess forming, when the front edge and the rear edge are closed to each other, the at least one opening adapted to surround the shaft element of the at least one auger;
• wherein the front edge and the rear edge are close enough to define a play therebetween that is small enough to prevent snow and/or debris to enter the first casing, or filled and/or covered with a sealing element secured to any one of the first part or the second part to have a play therebetween that is small enough to prevent snow and/or debris to enter the first casing;
• wherein the filing element comprises a two-part member secured around the portion of the shaft element of the at least one auger that positioned in the at least one opening of the front guard;
• wherein said filling element has a central opening configured to fit an outer surface of the shaft element of the at least one auger, and has outer cylindrical periphery housed in the at least one opening of the guard cover and/or covering the at least one opening of the first guard;
• wherein a play between said outer surface and the periphery of the at least one opening of the guard cover, is small enough to prevent snow and/or debris to enter the first casing;
• wherein the snow removing device is a snow blower further provided with a blower unit comprising an impeller fan element positioned inside a blower housing, and rotatably supported by the blower housing;
• and a driving system for driving the impeller fan element;
• and
• wherein the at least one self-adjusting chain tensioner comprises at least one self-supported tensioning and damping element consisting of an elastically deformable ring provided with a toothed rim engaging the roller chain.