Abstract:
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.

Description:
RELATED APPLICATIONS 
       [0001]    This application claims the benefit of Indian Application Ser. No. 201621020276, filed on Jun. 14, 2016, the disclosure of which is hereby expressly incorporated by reference in its entirety. 
       FIELD OF THE DISCLOSURE 
       [0002]    The present disclosure relates to the field eliminating dust and dirt accumulation between metallic surfaces. 
       BACKGROUND 
       [0003]    Accumulation of debris, such as, dust and dirt in spaces defined between metal parts poses several problems. Problems are especially accentuated in case wherein operation is required to be halted in order to clean the accumulated debris. Such problems are particularly faced in case off-road vehicles, such as, harvesters. For example, in case of sugarcane harvester, debris tends to get accumulated in the spaces provided between the radially spaced apart plates in feed rollers. This accumulated debris is required to be scraped out regularly to enable the feed rollers to run smoothly, thereby avoiding increased load on motors and reducing bearing life. However, the harvester is required to be halted in order to clean out the debris which results in unproductive time of harvester. The feed rollers are made of metal, and accumulated debris causes metal corrosion. 
         [0004]    Hence, there is a need to avoid accumulation of debris. 
       SUMMARY 
       [0005]    In one embodiment of the present disclosure, a dust restrictor includes at least one profiled dust restricting element and an attachment means. The at least one profiled 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 attachment means is an adhesive or a fastener. 
         [0006]    In one example, the dust restricting element is made of a polymeric material selected from the group consisting of a thermoset material, a thermoplastic material and a natural polymer. In a second example, the dust restricting element is in the form of a profiled sheet complementing the shape of the dust accumulating area. In a third example, the dust restricting element is of a required thickness. Alternatively, the dust restricting element is in the form of a solid block, profiled to complement the shape of the dust accumulating area. In a further example, the dust restricting element is a single piece member. A plurality of the dust restricting elements is arranged on the dust accumulating area, depending on requirement. In yet a further example, the dust restricting element is provided in space between feed plates of feed rollers in a harvester. The dust restricting element has a cross-section corresponding to the cross-section of the dust accumulating area. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0007]    The above-mentioned aspects of the present disclosure and the manner of obtaining them will become more apparent and the disclosure itself will be better understood by reference to the following description of the embodiments of the disclosure, taken in conjunction with the accompanying drawings, wherein: 
           [0008]      FIG. 1  is a side view of a sugarcane harvester; 
           [0009]      FIG. 2  is a perspective view of a feed roller of a sugarcane harvester; 
           [0010]      FIG. 3  is a perspective view of a dust restricting element provided on the feed roller of  FIG. 2 ; 
           [0011]      FIG. 4  is a perspective view of an alternate embodiment of a dust restricting element; 
           [0012]      FIG. 5  is a schematic of the dust restricting element of  FIG. 3 ; and 
           [0013]      FIG. 6  is a schematic of the dust restricting element of  FIG. 4 . 
       
    
    
     DETAILED DESCRIPTION 
       [0014]      FIG. 1  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. 
         [0015]      FIG. 2  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. 
         [0016]      FIG. 3  illustrates the dust restricting element  10  in accordance with one embodiment mounted in the feed roller  6  while  FIG. 4  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  FIG. 5  and  FIG. 6 , 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. 
         [0017]    The dust restricting element  10 , in accordance with an embodiment, particularly illustrated in  FIG. 3  and  FIG. 5 , 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 . 
         [0018]    In accordance with another embodiment of the dust restricting element  10 , the dust restricting element  20 , illustrated in  FIG. 4  and  FIG. 6 , 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 . 
         [0019]    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  FIG. 5 , 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. 
         [0020]    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 . 
         [0021]    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. 
         [0022]    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. 
         [0023]    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.