fig1 illustrates a sugarcane harvester and is generally designated as 1 , includes a top chopper 2 pivotally mounted by parallel arms 3 . a pair of crop dividers 5 is arranged at the front end of the operator cab 4 and below the arms 3 . a base cutter ( not shown in figure ) enables cutting of the stalked crop from the base . the whole stalked sugarcane is fed by feed roller unit 6 , in accordance with the present disclosure , into a chopper mechanism 7 . the whole stalked sugarcanes are cut into billets by the chopper mechanism 7 . thereby sugarcane billets are conveyed from the chopper mechanism 7 via an elevator 9 to be loaded into a carrier vehicle ( not shown in figure ) for transporting the billets for end usage . the feed rollers 6 operate to feed cane into chopper mechanism 7 to chop the canes into billets . while feeding cane most of the debris , such as , dirt and mud , sticks to the feed rollers 6 . the debris need to be scraped off from the feed rollers 6 for smooth operation of the feed rollers 6 and increasing bearing life . the accumulated debris if not removed , corrodes the base material of the feed rollers 6 which reduces the life of the feed rollers 6 . this problem is particularly common with the lower feed rollers compared to the top feed rollers . hence , the present disclosure provides for a dust restrictor to prevent accumulation of debris in feed rollers 6 , particularly the lower feed rollers . although the dust restrictor , in accordance with the present disclosure will hence forth be explained with regards to feed rollers , however , a person skilled in the art will appreciate that the dust restricting element can be used to prevent accumulation of debris in any space defined between parts . fig2 illustrates a presently available feed roller 6 having a plurality of radially spaced apart adjacent feed plates 6 a . the feed plates 6 a are mounted between on hubs 8 . the accumulation of debris take place in the space defined between the feed plates 6 a , particularly on the surface of the feed plates 6 a . the debris is prevented from being accumulated in the space , by means of a dust restrictor comprising of a dust restricting element and an attachment means . fig3 illustrates the dust restricting element 10 in accordance with one embodiment mounted in the feed roller 6 while fig4 illustrates the dust restricting element 20 in accordance with another embodiment mounted in the feed roller 6 . the dust restricting element 10 and the dust restricting element 20 are specifically illustrated in fig5 and fig6 , respectively . the dust restricting element 10 and the dust restricting element 20 are made of polymeric material , such as , a natural polymer , a thermoset material or a thermoplastic material . the dust restricting element 10 , in accordance with an embodiment , particularly illustrated in fig3 and fig5 , is a solid block profiled to complement the space defined between adjacent feed plates 6 a of the feed roller 6 . this prevents debris from contacting and accumulating in the dust accumulating areas of the feed roller 6 . in accordance with another embodiment of the dust restricting element 10 , the dust restricting element 20 , illustrated in fig4 and fig6 , is in the form of a profiled sheet complementing the shape of the dust accumulating area . the profiled sheet is of a required thickness t . the dust restricting element 20 are provided with surfaces 24 , 22 , 26 , 28 and 30 for lining the surface of the dust accumulating area of the feed roller 6 , such as , the feed plates 6 a and the hubs 8 . this prevents debris from contacting , accumulating and adhering to the dust accumulating areas of the feed rollers 6 . the dust restricting element 10 and the dust restricting element 20 are mounted in the space between the adjacent feed plates 6 a of the feed roller 6 by means of the attachment means , such as , adhesive or fastener . as illustrated in fig5 , the dust restricting element 10 is provided with a plurality of mounting openings 12 . the fasteners 11 are inserted through the mounting openings 12 so as to fasten the dust restricting element 10 to the surfaces of the feed roller 6 defining the space between the feed plates 6 a of the feed roller 6 . alternatively , the dust restricting element 10 and the dust restricting element 20 are adhesively mounted to the surfaces of the feed roller 6 defining the space between the feed plates 6 a of the feed roller 6 . due to the property of polymeric material to prevent adherence of particles thereon , the dust restricting element 10 and the dust restricting element 20 prevent the debris from accumulating and adhering thereon . also , the dust restricting element 10 and the dust restricting element 20 seals substantial portion of the space defined between adjacent feed plates 6 a , thereby preventing accumulation of debris within the space . the dust restricting element 10 and the dust restricting element 20 has a cross - section corresponding to the cross - section of the dust accumulating area . the dust restricting element 10 or the dust restricting element 20 are provided as a single piece member spanning between the hubs 8 . alternatively , depending on requirement , a plurality of dust restricting element 10 or the dust restricting element 20 are arranged on said dust accumulating area spanning between the hubs 8 . thus , the dust restrictor , in accordance with the present disclosure , prevents debris from being accumulated and adhered to in dust accumulating areas of the feed roller 6 . this helps in increasing the life and efficiency of the feed roller and also improving life of associated bearings and motors . in this disclosure , the embodiments shown and described herein may minimize an accumulation of debris , reduce downtime of a machine due to debris accumulation , and increase a life of bearing and motors operating the machine . while embodiments incorporating the principles of the present disclosure have been described hereinabove , the present disclosure is not limited to the described embodiments . instead , this application is intended to cover any variations , uses , or adaptations of the disclosure using its general principles . further , this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this disclosure pertains and which fall within the limits of the appended claims .
a dust restrictor is provided for eliminating dust and dirt accumulation between surfaces . the dust restrictor includes at least one dust restricting element and an attachment means . the dust restricting element is disposed in a dust accumulating area of an arrangement . the attachment means is provided for fixing each of the dust restricting elements to the dust accumulating area . the dust restrictor can minimize an accumulation of debris , reduce the down time of a machine due to debris accumulation , and also increase life of bearing and motors operating a machine .