JP2011092031A - Dustproof device for combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To heighten operation efficiency by preventing overheat of an engine by preventing clogging of a dustproof net. <P>SOLUTION: The dustproof device is constituted as follows. Upper and lower two wind-shielding plates (10, 10) rotating while keeping the state adhering to the inside are attached to the dustproof net (4) of a dustproof cover (5) installed in the sucking side of an engine room (2), and the wind-shielding plates (10, 10) are constituted so that a part (A) at which mutual rotating loci are overlapped may be formed. A first dust-sucking opening (11) and a second dust-sucking opening (12), for sucking dust are opened at two positions of the lower part at the outside and the part (A) at which the rotating loci are overlapped in the dustproof cover (5). The first dust-sucking opening (11) and the second dust-sucking opening (12) are communicated by a dust-guide cover (13) installed in the outer face side of the dustproof net (4). The dust-guide cover (13) is communicated with a dust-sucking air passage (14) communicating with shroud (15) of a suction fan (6). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a dustproof device provided on an outside air intake side in an engine room of a combine.

  The present application relates to a combine work that is considered to generate a lot of dust even in agricultural work, and is an invention related to a dust-proof device installed in a dust-proof cover of an engine room. A specific technical configuration of this type of dustproof device is disclosed in, for example, Japanese Patent Application Laid-Open No. 10-286018 (see Patent Document 1) and Japanese Patent Application Laid-Open No. 2002-59748 (see Patent Document 2). Has been.

  That is, in the former publication, the dust screen of the engine room 61 is configured as a rotary screen 66 having a dust removal ventilation structure, the dust collection duct 74 is connected to the outside, and the dust collection duct 75 is connected to the dust collection duct 74. A configuration is described in which dust is discharged and the dust-removed air is pumped to the engine 21. The publication states that “the temperature inside the box 60 and the intrusion of dust are prevented, and the engine 21 is improved in soundproofing, dustproofing and cooling efficiency”.

  In the latter publication, the adhering matter adhering to the dust net 11 stretched on the suction port 10 for sucking the outside air of the engine cover 9 provided outside the radiator 6 of the engine 7 is removed by the shielding device 12 that rotates. In addition, the shield device 12 is driven to rotate by the windmill 29, and the rotational speed is regulated by the rotation regulating device. “The outside air of the engine cover 9 provided outside the radiator 6 of the engine 7 is described. It is possible to automatically remove the deposits adhering to the dust net 11 stretched at the suction port. "

Japanese Patent Laid-Open No. 10-286018 Japanese Patent Laid-Open No. 2002-59748

  This type of conventional device, for example, as in the invention disclosed in Patent Document 1 presented by the patent applicant in the previous section, a dust collection duct provided on the surface of the rotary screen is connected to the dust suction duct to form a dustproof net. A configuration for preventing dust while collecting dust on the (rotary screen) is known as a known technique.

  This conventional device is a device that collects dust on a rotating rotary screen with a dust collecting duct and absorbs it, so that dust scattered around on the dust-proof net is in a rotary configuration and every rotation. There is a problem that the dust collection efficiency is very poor and dust collection cannot be performed accurately because the dust collection duct rotates once and collects dust.

  On the other hand, the invention of the present application is dust-proof by the joint action of the wind shields (10) and (10) that move while keeping in close contact with the inner surface of the dust-proof net and the suction wind force by the intake fan (6). It is configured to collect dust on the surface of the net (4) and collect the dust together to solve the above-described conventional problems.

In order to solve the above-described problems, the invention of this application takes the following technical means.
That is, the invention according to claim 1 is provided with a dust cover (5) in which a dust net (4) is stretched on the frame (3) on the outer side of the engine room (2) in which the engine (1) is installed, An intake fan (6) and a radiator (7) are arranged between the dust cover (5) and the engine (1), and are attached to a support member (8) provided inside the frame (3). The at least two rotating wheels (9, 9) are vertically pivoted so as to rotate in conjunction with each other, and each rotating wheel (9, 9) is close to the inner surface of the dust-proof net (4). Alternatively, a windshield plate (10, 10) that rotates while maintaining a close contact state is attached, and the two windshield plates (10, 10) are formed longer than the diameter of the rotating wheel (9, 9), and are mutually connected. It arrange | positions so that the part (A) where a rotation locus | trajectory may overlap may be made, and the 1st dust inlet (11 And a second dust suction port (12) for sucking up dust in the portion (A) where the rotation trajectory overlaps is opened at the middle in the vertical direction outside the dustproof cover (5). This is a dustproof device.

  With this configuration, the flow rate of the outside air sucked through the edge of the wind shield plate (10, 10) is increased while bypassing the wind shield plate (10, 10), and the outer surface of the dust net (4) is increased. The dust is attracted to the edge of the wind shield plate (10) and moves on the outer surface of the dust net (4) as the wind shield plate (10) rotates. Then, the dust is sucked from the second dust suction port (12) at the overlapping portion of the rotation locus of the upper and lower wind shielding plates (10, 10). Moreover, the dust inherited by the rotation of the lower wind shielding plate (10) from the overlapping portion of the rotation locus of the upper and lower wind shielding plates (10, 10) further down on the outer surface of the dust net (4). It moves and is sucked from the first dust inlet (11).

  According to a second aspect of the present invention, the first dust suction port (11) and the second dust suction port (12) are communicated with each other by a dust guide cover (13) provided on the outer surface side of the dust-proof net (4). The combine cover according to claim 1, wherein the guide cover (13) communicates with a dust suction air passage (14) that bypasses the radiator (7) and is connected to the shroud (15) of the intake fan (6). It is a dustproof device.

  That is, the two first dust inlets (11) and the second dust inlet (12) opened on the dust cover (5) are communicated with each other by the dust guide cover (13), and the outer surface of the dust screen (4) It is in a state of covering the upper dust collecting portion, and an efficient dust collecting action is performed.

  According to the first aspect of the present invention, the dust screen (4) can be cleaned over a wide area by the rotating wind shields (10, 10), the clogging is prevented and the engine (1) is hardly overheated. Efficiency can be improved.

  According to the second aspect of the present invention, dust on the outer surface of the dust cover (5) can be collected more efficiently and discharged together, and overheating of the engine (1) can be prevented. .

Combine side view Side view of dust cover with wind shield plate Side view of dust cover Top view of engine room Sectional view of a device that supports a rotating wheel The side view of the dustproof cover which provided the dust inlet and the dust guide cover.

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, as shown in FIG. 1, the combine is provided with a cutting and conveying device 19 at the front part of the vehicle body 18 equipped with the crawlers 17, 17, and a threshing device is provided on the left side in the traveling direction on the vehicle body 18 behind the combiner. It is mounted on the right side of the threshing device in the order of the driver's seat 20 and the Glen tank 21 from the front.

  As shown in FIG. 1, the driver's seat 20 has a meter panel or the like on the front side, a main transmission lever and a throttle lever on an operation frame provided from the front side to the left side, and further, cutting and detaching operations. The control levers and other control levers are arranged in a concentrated manner to form a combine that gets on and off the right side of the floor.

  Next, as shown in FIG. 4, the engine room 2 is formed using the lower space of the driver's seat 20 and the engine 1 is mounted in the center. As shown in the drawing, the engine room 2 is configured such that the right side in the traveling direction is the outside air intake side, and a dust-proof cover 5 in which a dust-proof net 4 is stretched on the machine frame 3 is provided at that portion, so that outside air can be sucked. . In the case of the embodiment, in the engine room 2, an intake fan 6 and a radiator 7 are disposed between the dust cover 5 and the engine 1, and further, a cooler such as an HST, a mission, an air conditioner, etc. is disposed outside the radiator 7. Thus, the air cooling is performed by the intake air.

  Although not shown, the dust cover 5 is configured to freely open to the outside in order to perform maintenance in the engine room 2, and the driver seat 20 on the upper side is also tilted forward to move the engine room 2. The ceiling can be opened.

  As shown in FIG. 2, the two rotating wheels 9, 9 are provided between the upper machine casing 3 and the lower machine casing 3 so as to be vertically installed inside the dust cover 5. The support member 8 is pivotally provided at an upper position and a lower position so as to be freely rotatable. As shown in the drawing, the two rotating wheels 9 and 9 are configured such that gears 25 and 25 are formed on the entire circumference of the outer peripheral edge thereof and meshed with each other to be transmitted. Then, as shown in FIG. 2, the two gears 25, 25 are configured to press and hold the meshing portion with the rollers 26, 26 from the left and right sides. The rotating wheels 9, 9 are also positioned by holding the rollers 26, 26 against both ends of the upper side and the lower side, as shown in the drawing.

  As shown in the drawing, the electric motor 27 is attached to the upper portion of the support member 8 by a mounting bracket 28 and drives the transmission gear 29 via a reduction mechanism (not shown). As shown in FIG. 2, the transmission gear 29 is configured to be engaged with the gear 25 of the rotating wheel 9 pivoted on the upper side to transmit.

  In this way, the two rotating wheels 9 and 9 are transmitted from the transmission gear 29 driven by the electric motor 27 to transmit the rotational force in order from the upper side, and are configured to rotate upside down. In this case, the rotating wheels 9 of the embodiment are configured to be greatly decelerated by the reduction mechanism connected to the electric motor 27 described above and to rotate at a low speed.

  Next, as shown in the drawing, the wind shielding plates 10 and 10 are formed in a strip shape, and are longer than the diameter of the rotating wheels 9 and 9 so that the center portion is aligned with the rotation center of the rotating wheels 9 and 9. It is configured to be fixed to be rotatable. And in the case of an Example, the wind-shielding plates 10 and 10 are attached and comprised so that it can rotate while maintaining the state closely_contact | adhered to the mesh surface inside the said dustproof mesh 4. FIG.

  In this case, as in the embodiment shown in FIG. 5, if the rotating wheels 9 and 9 are supported by the support member 8 on the rear side and the dust-proof net 4 on the front side and supported on both sides, the relative positions of the two are always out of order. Therefore, since it stabilizes, it can rotate, maintaining the close_contact | adherence state of the windshields 10 and 10 with respect to the mesh surface of the dustproof net 4. FIG.

  The wind shields 10 and 10 are coated with a slippery material such as a fluororesin material or the like on the surface, in particular, the surface that rotates in close contact with the side surface of the dust screen 4 or the material. Smooth rotation can be expected when the thin plate (thin film) is adhered and made slippery.

  In this way, the wind shielding plates 10 and 10 are attached to the two rotating wheels 9 and 9 that are pivotally mounted at the upper position and the lower position of the support member 8, respectively, and are longer than the diameter of the rotating wheel 9, Although it is the structure which reverse | reverses integrally with the mutually engaged rotating wheels 9 and 9, as FIG. 2 shows, it has the structure arrange | positioned so that the part (A) where a mutual rotation locus | trajectory may overlap | superpose. And since the said wind-shielding plates 10 and 10 are longer than the diameter of the said rotating wheels 9 and 9, and are arrange | positioned so that the part (A) where a mutual rotation locus | trajectory may overlap | superpose, an upper windshield The dust carried around while the plate 10 is gathered as it is rotated can be sequentially discharged to the lower ground side while being carried around by the portion (A) where the lower wind shielding plate 10 is superposed.

  In the embodiment, as shown in FIG. 1 and FIG. 2, the dust screen 4 is moved up and down at a portion (A) where the upper and lower wind shielding plates 10 and 10 rotate reversely to each other and the locus overlaps. It is set as the structure which has arrange | positioned the machine frame 3 attached and supported from.

  When the apparatus described above is assembled in an assembly factory, as is normally done, after sub-assembly in advance, the electric motor 27 is finally attached and assembled, so that the assembly can be performed with high accuracy and efficiency. That is, the wind shielding plates 10 and 10, the rotating wheels 9 and 9 for rotating the wind shielding plates 10 and 10, and the support member 8 that supports them are attached to the dustproof cover 5 and pre-assembled in advance. After that, if the electric motor 27 is assembled in the procedure, the assembling work can be performed efficiently and the degree of adhesion between the dust screen 4 and the wind shielding plate 10 can be easily confirmed.

  Next, as shown in FIGS. 1, 2, and 6, the dust cover 5 is penetrated from the outside of the machine frame 3 to open the dust suction port 11 at the lower portion and overlap the rotation trajectory. In order to absorb the dust of (A), the dust inlet 12 is configured to open to the middle rear side. Then, as shown in FIG. 6, the dust guide cover 13 is formed in a semicircular arc shaped cross section and is faced down to the front side of the dustproof cover 5 so that the two dust suction ports 11 and 12 are communicated with each other. It has a configuration. In this case, the saddle-shaped dust guide cover 13 having a semicircular arc in cross section is constructed by attaching the open side to the dust net 4 as described above. As shown in FIG. 3, the two dust inlets 11 and 12 communicate with the dust suction air passage 14 on the back side, and extend the dust suction air passage 14 to the rear side by bypassing the lower side of the radiator 7. The intake fan 6 is connected to the shroud 15 and opened. In this case, in the embodiment shown in FIG. 3, the dust suction air passage 14 bypasses the lower side of the radiator 7, but it can be freely provided by bypassing the lateral side.

  In the embodiment configured as described above, during the combine operation while the engine is running and the dust is floating, the suction fan 6 wakes up and sucks the surface of the dust-proof net 4. The wind shielding plates 10 and 10 that slowly rotate dust mainly collected in the state rotate and move while attracting to the edge in the rotation direction with the suction air on the net set to zero. In this way, while the dust is attracted to the edge of the rotating upper wind shield 10 while being adsorbed on the surface of the dust-proof net 4, it is carried around to the portion (A) where the mutual rotation trajectories overlap. It is done. When the collected dust reaches the machine frame 3 on the dust cover 5 and suddenly enters the range where the suction air does not act, the suction force is lost and the screen is separated from the net surface. In this way, the dust that has lost its adsorption power is sucked while floating in the dust guide cover 13 due to the suction air from the dust inlet 12 that is open to the side of the dust cover 5. It is sent to the dust suction air passage 14.

  The dust remaining on the surface of the dust-proof net 4 without being sucked by the middle part of the dust-proof cover 5 is inherited by the rotating lower wind shield 10 and moves the mesh surface in the rotational direction. It moves downward and downward on the surface of the dust screen 4 to reach the bottom of the dust screen 4, and is sucked into the lower dust inlet 11 and sent to the dust suction passage 14.

  In this way, the dustproof cover 5 has the windshield plates 10 and 10 that slowly rotate dust mainly consisting of sawdust collected on the surface of the dustproof net 4 by the suction air generated by the intake fan 6. Then, the suction air is set to 0, and it moves while being attracted to the edge in the rotation direction. Therefore, the upper wind shielding plate 10 is in a state in which the dust accumulated in the mesh of the dustproof mesh 4 on the front side is removed, and is hardly blocked, and the ventilation area is secured, so that the cooling efficiency is improved. There is no loss.

DESCRIPTION OF SYMBOLS 1 Engine 2 Engine room 3 Machine frame 4 Dust-proof net | network 5 Dust-proof cover 6 Intake fan 7 Radiator 8 Support member 9 Rotating wheel 10 Windshield 11 Dust inlet 12 Dust inlet 13 Dust guide cover 14 Dust intake path 15 Shroud A Rotating locus Polymerization part of

Claims (2)

  A dust-proof cover (5) in which a dust-proof net (4) is stretched on a frame (3) is provided on the outer side of an engine room (2) in which the engine (1) is installed, and the dust-proof cover (5) and the engine ( 1), an intake fan (6) and a radiator (7) are arranged, and a support member (8) provided inside the frame (3) is provided with at least two rotating wheels (9, 9). ) Are pivoted up and down so that they rotate in conjunction with each other, and each of the rotating wheels (9, 9) is shielded to rotate while maintaining a state of being close to or in close contact with the inner surface of the dust-proof net (4). A wind plate (10, 10) is attached, and the two wind shield plates (10, 10) are formed longer than the diameter of the rotating wheel (9, 9), and a portion (A) where the mutual rotation trajectories overlap is formed. The first dust suction port (11) is opened at the lower part of the outer side of the dust cover (5) and the rotation Combine dustproof device characterized by an opening in the vertically intermediate portion of the outer portion of traces is polymerized second dust suction port for dust suction dust (A) (12) dust cover (5).   The first dust suction port (11) and the second dust suction port (12) are communicated with each other by a dust guide cover (13) provided on the outer surface side of the dustproof net (4), and the dust guide cover (13) is connected to the radiator. The dustproof device for a combine according to claim 1, wherein the dustproof air passage (14) bypasses (7) and is connected to the shroud (15) of the intake fan (6).

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