• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a fan of a chipper machine used for transporting the chopped material out of the chipper (5), which chipper has a blower (1) and one or more frames (1a) therein, inside the frame (1a) or a plurality of poppet sets (2) are rotatably mounted, and the poppet set (2) comprises one or more blades (2b) for transporting the material out of the blower (1). The invention is characterized in that one or more relief elements (2bag) are arranged at the tip (2bac) of the blade (2b), wherein the rotation stop of the throwing wing set (2) decreases.
    公开号:AT516805A1
    申请号:T43/2015
    申请日:2015-02-02
    公开日:2016-08-15
    发明作者:Petri Kaksonen
    申请人:Kesla Oyj；
    IPC主号:
    专利说明:

    FAN OF A CHIPPING MACHINE
    The subject of this invention is the fan of a chipper according to the preamble of the appended patent claim 1.
    Nowadays, the chopped material, that is to say the chippings, is generally removed from the chippers by means of previously known centrifugal blowers which have a round frame which, in the other direction, has the shape of a rectangle. Within the frame, a rotatably mounted Wurfflügelsatz is arranged, which is operated by means of an electric or internal combustion engine. The WurfflUgelsatz has attached leaves, which leaves suck in the rotation of the Wurfflügelsatzes the material in the frame by an arranged in the side of the same inlet tube. The blades, due to centrifugal force, throw the material away from the interior of the frame through an exit tube extending from the periphery of the frame. The tips of the leaves are as close to the inner surface of the frame as possible and are rectified with the inner surface of the frame.
    In the current solution described above, there is a disadvantage in that the sheet is placed very precisely with as little clearance as possible within the frame in order to achieve effective suction and effective blow-off performance, such accurate blade assembly on the inner surface of the Frame, however, causes a strong warming of the sheet and the inner surface of the frame. The blade and the inner surface of the frame heat up vigorously while the blades rotate the material inside the frame against the inner surface of the frame. Between the top of the blade and the inner surface of the frame slightly chopped material accumulates, which heats up vigorously, heating up the round surface of the frame, even to dangerous levels with regard to a fire, with the chopped material in the warehouse catching fire , The blade and the inner surface of the frame are also strong and fast. The worn leaves and the inner surface of the frame have to be replaced with new ones, and this replacement is a time and cost intensive work, also the parts are very expensive. The interruption duration of the chipper increases the price for the wood chips production. After the frame and blades have been heated to a fire-dangerous level, chipping production must be stopped for the duration of the cooling, the interruption causing a reduction in the efficiency of the chips production and thus increasing the price of the chips production.
    The object of the invention is to reduce the friction between the blade and the inner surface of the frame, whereby the frame of the fan is less heated and worn. Another goal is to reduce the wear of the blades and the inner surface of the frame. In addition, another objective is to reduce the driving force of the blower vanes.
    With the blower according to the invention of a chipper, which is characterized by what is stated in the characterizing part of patent claim 1, the above-mentioned disadvantages can be eliminated and the objectives described above can be achieved. Preferred embodiments of the invention are the subject of the dependent claims.
    As one of the most important advantages of the invention may be mentioned that the now invented relief element in the blade of the chipper blower reduces the friction between the blade and the frame, whereby the wear and the heating are significantly reduced, resulting in the leaves and the frame of the chipper blower long hold. The long service life considerably reduces the costs of wood chips production.
    The invented relief element is a clearance which is incorporated in the sheet, on the entrance side of the wood chips / material of the sheet, while the other, opposite side of the sheet is left tight, whereby the Blaswirkungskraft is maintained. If a clearance were applied across the entire width of the tip of the blade, the blowing effect would decrease considerably. Thanks to the reduction in friction, the demand for the driving force of the blower's thrower set is also reduced. It is clear that with the help of the invented chipper blower considerable economic savings in the production of wood chippings can be achieved.
    In the following the invention will be explained in more detail with reference to the attached figures.
    Figure 1 shows a known chipper to which a fan according to the invention is mounted for a chopping machine, seen from obliquely above.
    Figure 2 shows an inventive fan for a chopping machine seen from the opposite side of the suction side obliquely from above, with the opposite side of the suction side of the chipper fan is removed, so that the inside of the fan of the chopping machine is visible.
    FIG. 3 shows the fan of a chipper according to FIG. 2 in front view from the side, the wall of the chipper blower lying opposite the suction side being removed, so that the inside of the blower of the chipping machine is visible.
    FIG. 4 shows the fan of a chipper according to FIGS. 2-3, in cross-section and in front view.
    FIG. 5 shows a partial cross section of the blower of a chipper according to FIGS. 2-4 in a front view
    FIG. 6 shows a blade of the blower of a chipping machine according to FIGS. 2-5 in a front view of FIG.
    FIG. 7 shows a second sheet according to the invention of the blower of a chipping machine in a front view from FIG.
    The figures show a fan 1, which has a frame la. The frame la has a coat laa, a side lab, an entrance opening lac and an outlet opening lad. The side lab has an entrance side laba (the material / wood chips come from this side of the entrance opening lac into the frame la) and a far side labb. The opposite side labb is a closed side, the opposite side labb may have previously known cleaning / maintenance openings that can be opened. Belonging to the blower
    Spreader blade set 2 comprising a frame 2a and a blade 2b having a blade frame 2ba. The sheet frame 2ba has a material entrance side 2baa, a side 2bab (side on the opposite side lbb side), a tip 2bac, a front surface 2bad, a rear surface 2bae, a width 2baf, a relief member 2bag, and a fixing member 2bah inserted into the Drawings represents ear-shaped projections for a screw fastening. In addition, a relief element 2bag is arranged, which is formed as a cavity or slope. The relief element 2bag has a length 2baga (10 - 80% of the width 2baf of the sheet 2b) and a height 2bagb (10 - 30 mm). The sheet 2b has the shape of a groove as viewed from above, and the vertical edges of the sheet 2b, the material entrance side 2baa and the side 2bab are bent backward, as a result of which the sheet 2b carries the material better than a straight one Leaf.
    A part of the figures also shows a previously known drive shaft 3, an inlet pipe 4, a chipper 5, an outlet pipe 6.
    In addition, arrows are drawn in part of the figures. The direction of rotation of the Wurfflügelsatzes 2 is indicated by arrow 7, the direction of entry of the material with arrow 8 and the direction for the exit of the material with arrow 9.
    The figures show the blower of a chipper machine used for transporting the chopped material out of the chipper 5, which chipper has a blower 1 and one or more frames 1a therein, within the frame la one or more thrower sets 2 are rotatably mounted, and the spreader blade set 2 has one or more blades 2b for transporting the material out of the fan 1 In addition, one or more relief elements 2bag is arranged at the tip 2bac of the blade 2b on the inlet side 2baa of the material, whereby the rotation stop of the spreader blade set 2 decreases. The relief member 2bag is disposed on the sheet 2b on the entrance side 2baa of the material.
    In Figure 6 it is shown that the relief element 2bag has the shape of a square or a rectangle, seen from the front surface 2bad of the sheet 2b. The corners of the relief element 2bag may be rounded.
    FIG. 7 shows a second exemplary embodiment of the invention. In Figure 7 it is shown that the relief element 2bag has the shape of a triangle, seen from the front surface 2bad of the sheet 2b.
    The length 2baga of the relief element 2bag according to the invention is 10 - 80% of the width 2baf of the sheet 2b.
    The height 2bagb of the relief element 2bag according to the invention is 10-30 mm.
    The parts of the chipper blower according to the invention can be produced by means of known methods from conventional materials. It will be obvious to one skilled in the art that the invention is not limited only to the alternatives described above, but that numerous variants are possible within the scope of the inventive concept defined in the appended claims.
    权利要求:
    Claims (5)
    [1]
    A blower of a chipping machine used for transporting the chopped material from the chipper (5), which chipper has a blower (1) and one or more frames (1a) therein, within the frame (1a) one or more throwing paw sets (2) are rotatably mounted, and the throwing wing set (2) comprises one or more blades (2b) for transporting the material out of the fan (1), characterized in that at the top (2bac) of the blade (2b) one or more a plurality of relief elements (2bag) on the sheet (2b) on the inlet side (2baa) of the material are arranged, wherein the rotation stop of the Wurfflügelsatzes (2) decreases.
    [2]
    2. Blower of a chipper according to claim 1, characterized in that the relief element (2bag) has the shape of a square or a rectangle, as seen from the front surface (2bad) of the sheet (2b).
    [3]
    3. Blower of a chipper according to claim 1, characterized in that the relief element (2bag) has the shape of a triangle, as seen from the front surface (2bad) of the sheet (2b).
    [4]
    4. Blower of a chipper according to one of the claims 1-3, characterized in that the length (2baga) of the relief element (2bag) is 10-80% of the width (2baf) of the sheet (2b).
    [5]
    5. Blower of a chipper according to one of the claims 1-4, characterized in that the height (2bagb) of the relief element (2bag) is 10 -30 mm.
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    同族专利:
    公开号 | 公开日
    AT516805B1|2016-11-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3944147A|1974-12-06|1976-03-16|Asplundh Tree Expert Co.|Brush chipper|
    DE29517867U1|1995-11-10|1996-01-04|Weis Georg Gmbh|Shredding machine|
    DE20320044U1|2003-12-24|2004-03-04|Viking Gmbh|Knife disc with fangs for a chopper|
    WO2013188863A1|2012-06-16|2013-12-19|Michael Boyd Morey|Waste and brush collection and processing system|
    DE102018122716B3|2018-09-17|2019-12-19|Technische Universität Dresden|Conveyor for wood chips and other bulk goods|
    法律状态:
    2020-10-15| MM01| Lapse because of not paying annual fees|Effective date: 20200202 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA43/2015A|AT516805B1|2015-02-02|2015-02-02|Blower of a chipper|ATA43/2015A| AT516805B1|2015-02-02|2015-02-02|Blower of a chipper|
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