JP2011092030A - 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 dustproof net. <P>SOLUTION: The dustproof device is constituted as follows. A dust proof cover (5) obtained by tightly stretching the dustproof net (4) on a frame body (3) is installed in the outside part of an engine room (2) in which the engine (1) is installed. A suction fan (6) and a radiator (7) are arranged between the dustproof cover (5) and the engine (1). At least two rotary wheels (9, 9) are axially supported at the upper and lower sides by a supporting member (8) installed in the inside of the frame body (3) so as to be rotated synchronously. Wind-shielding plates (10, 10) rotating while keeping the state adjoining to or adhering to the inside surface of the dustproof net (4) are attached to each of the rotary wheels (9, 9). Each of the wind-shielding plates (10, 10) is formed so as to be longer than the diameters of the rotary wheels (9, 9), and the two wind-shielding plates (10, 10) are arranged so that a part (A) at which the mutual rotating loci overlap may be formed. <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.

  First, 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, and dust collection duct 74 and dust collection duct 75 are communicated to the outside for dust removal. The structure which pumps to the engine 21 is described. 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, “a shielding device 12 that rotationally drives an adhering matter attached to a dust-proof net 11 stretched on an inlet 10 for sucking outside air of an engine cover 9 provided outside a radiator 6 of the engine 7. In addition to the removal, the shielding device 12 is driven to rotate by a windmill 29, and the rotational speed is regulated by a rotation regulating device, and is described as “the engine cover 9 provided outside the radiator 6 of the engine 7”. It is possible to automatically remove deposits adhering to the dust net 11 stretched at the suction port for sucking outside air.

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

  A conventional device of this type, for example, the shielding device 12 of the invention disclosed in the above-mentioned Patent Document 2, is composed of a rotating body having a clogging portion 27b attached to the inside of the center position of the dustproof net 11. The shielding device 12 takes the power from the windmill 29 and rotates along the inner surface of the dustproof net 11 while adhering to the outside of the net such as dust and the like. Therefore, it is configured to rotate while gathering to the front side in the rotation direction. However, the above-described conventional type has a single structure, and the attached matter (sawdust, grass dust, dust, etc.) collected while the upper shielding device 12 is carried around is passed on to the next shielding device 12 on the lower side. Since it can not be sent to the bottom and then discharged to the ground, it can continue to be carried around while being deposited on the surface of the dustproof net 11 as long as the suction wind pressure continues, and the dust removal effect is reduced by half. As a result, the temperature rise in the engine room and the infiltration of dust continued, and there was a problem that the soundproofing, dustproofing and cooling efficiency of the engine 7 were lowered.

  On the other hand, in the present invention, the wind shielding plate (10, 10) moves while maintaining a state in which the at least two rotating wheels (9, 9) are close to or in close contact with the inner surface of the dust net (4). Since it is configured by attaching two or more wind shields (10, 10) so as to occupy most of the dust net (4), dust can be discharged to the ground while inheriting It is supposed to be.

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 supported so as to rotate in conjunction with each other, and the respective rotating wheels (9, 9) are close to the inner surface of the dust-proof net (4). Or it is set as the dustproof apparatus of the combine characterized by attaching the wind-shielding board (10, 10) which maintains a close_contact | adherence state and rotates.

  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 taken over by the rotation of the lower wind shielding plate (10), moves further downward on the outer surface of the dust screen (4), and enters the corner of the dust screen (4) having a low suction flow rate. Accumulated and falls to the farm scene.

  According to a second aspect of the present invention, each of the wind shielding plates (10, 10) is formed longer than the diameter of the rotating wheel (9, 9), and the two wind shielding plates (10, 10) are mutually rotated. The dust-proof device for a combine according to claim 1, wherein the dust-proof device is arranged so as to form a portion (A) for polymerizing.

  With this configuration, the dust that has moved on the outer surface of the dust screen (4) with the rotation of the upper wind shield (10) overlaps the rotation trajectory of the two wind shields (10, 10). In (A), it is handed over to the lower wind shield (10).

  The invention according to claim 3 is the frame (3) for attaching and supporting the dust screen (4) from above and below the portion (A) where the mutual rotation trajectories of the wind shield plates (10, 10) overlap. The combine dustproof device according to claim 2, wherein the combine dustproof device is arranged.

  With this configuration, while being adsorbed on the surface of the dust screen (4), it is attracted to the edge of the upper wind shield (10) and the mutual rotation trajectories of the upper and lower wind shields (10, 10) overlap. When the dust that has moved to the part (A) that comes to the zone (3) comes to a zone where no intake air acts (the range of no wind), the adsorbing action is lost, and the dust is separated from the outer surface of the dust-proof net (4). Fall in a floating state. And a lower windshield (10) inherits the dust remaining without falling and rotates downward.

  According to a fourth aspect of the present invention, the rotation locus of the wind shield plate (10, 10) exceeds the stretched range of the dust screen (4), and the portion of the outer frame (3) of the dust screen (4). The combine dustproof device according to claim 2 or 3, characterized in that:

  With this configuration, as described in the third aspect, the windshield plate (10) reaches the zone where the suction wind does not act (the portion of the outer frame body (3)) where the dust that is collected while being collected on the front side of the rotation reaches. As a result, the suction force is lost and the screen is separated from the mesh surface, and the dust adsorbed on the dust-proof mesh (4) surface can be reduced.

  According to a fifth aspect of the present invention, the two rotating wheels (9, 9) are engaged with each other by forming the outer peripheral edges of the two rotating wheels (9, 9) to the gears (11, 11). The combine dust-proof device according to claim 1, wherein position restriction rollers (12, 12) for preventing disengagement are provided on both sides of the portion.

  With this configuration, the transmission configuration of the two wind shielding plates (10, 10) is a simple configuration in which gears (11, 11) are formed and meshed with the outer peripheral surface of the rotating wheels (9, 9). The meshing portion is pressed and held from both sides by the position restricting rollers (12, 12), and stable transmission is performed while the position is reliably held.

  The invention according to claim 6 is characterized in that a receding portion (13) which is inclined so as to be retracted inward from the surface of the dustproof net (4) is provided at the lower end of the dustproof cover (5). The combine dust-proof device according to 1.

  With this configuration, it is possible to eliminate the portion where the dust falling from the upper dust-proof net (4) is caught and collected, and the discharge of dust such as sawdust can be facilitated.

  According to the first aspect of the present invention, the dust screen (4) can be cleaned over a wide range by the rotating upper and lower wind shielding plates (10, 10), and clogging is prevented to cool the radiator (7) and the engine (1). It is possible to increase the efficiency and prevent the engine (1) from being overheated to increase the work efficiency.

  According to the invention described in claim 2, in addition to the effects of the invention described in claim 1, the dust that has moved on the outer surface of the dust-proof net (4) as the upper wind shield (10) rotates. Can be reliably transferred to the lower wind shield (10), improving the cleaning efficiency of the dust screen (4), preventing clogging, and improving the cooling efficiency of the radiator (7) and engine (1). It is possible to increase the working efficiency by preventing overheating of the engine (1).

  According to the invention of claim 3, in addition to the effect of the invention of claim 2, the upper and lower wind shielding plates (10, 10) are attracted to the edge of the upper wind shielding plate (10). The dust that has moved on the outer surface of the dust net (4) to the part (A) where the rotation trajectory of the slab is superposed can be dropped with the suction force lost by the frame (3) being blocked. It is possible to reduce the amount of dust carried over to the lower wind shielding plate (10) and prevent clogging of the lower part of the dust net (4).

  According to the invention described in claim 4, in addition to the effects of the invention described in claim 2 or claim 3, the wind shield plate (10) extends beyond the range of the dust net (4) to the outer frame ( When reaching the back side of 3), the suction air disappears and the dust that has lost the adsorption force is separated from the net surface, and the dust removing action is naturally promoted.

  According to the fifth aspect of the invention, in addition to the effect of the first aspect of the invention, the transmission structure of the windshield plate (10, 10) is arranged on the outer peripheral surface of the rotating wheel (9, 9) with the gear (11, 11). 11) is formed and meshed, and the meshing portion is position-regulated by the position-regulating rollers (12, 12) from both sides to securely hold the meshing state, thus simplifying the configuration. At the same time, the meshing position can be interlocked while maintaining a stable state, and the durability can be improved.

  According to the invention described in claim 6, in addition to the effect of the invention described in claim 1, the lower end of the dust-proof cover (5) prevents the dust falling away from the upper dust-proof net (4) from being caught. Since the receding part (13) which is inclined so as to be retracted inward from the surface of the dust net (4) is provided, there is no part where dust such as saw dust falls along the surface of the dust cover (5) and is discharged. It is possible to prevent the clogging of the lower part of the dust net (4) and to secure the amount of outside air sucked for cooling the radiator (7) and the engine (1).

Side view with dust shield cover and wind shield and related mechanisms Top view of the dust cover Side view of dust cover Side view of dust cover Inside view showing the dust cover from the inside Top view of engine room Side view of rotating wheel and position regulating roller Front view of gears and position control rollers Combine side view Plan sectional view of another embodiment of windshield Plan sectional view of another embodiment of windshield

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, as shown in FIG. 9, the combine is provided with a cutting and conveying device 17 at the front of the vehicle body 16 equipped with the crawlers 15, 15. It is mounted on the right side of the threshing device in the order of the driver's seat 18 and the Glen tank 19 from the front.

  As shown in FIG. 9, the driver's seat 18 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 to the left side, and further a cutting and clutch release operation lever. The operation levers such as the above are arranged in a concentrated manner so that the combine can be operated by getting on and off the right side of the floor.

  Next, as shown in FIG. 9, the engine room 2 is formed using the lower space of the driver's seat 18, and the engine 1 is mounted in the center as shown in FIG. . 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, the engine room 2 includes an air intake fan 6 and a radiator 7 between the dust cover 5 and the engine 1, and a cooler such as an HST, a mission, and an air conditioner outside the radiator 7. It is arranged and air-cooled by intake air.

  And although illustration is abbreviate | omitted for the dust-proof cover 5, in order to perform the maintenance in the engine room 2, the vertical fulcrum is provided on the rear side, and the front side is configured to be freely open to the outside. The driver's seat 18 on the upper side is also tilted forward and the ceiling portion of the engine room 2 can be opened. Reference numeral 23 denotes a lock lever.

  As shown in FIGS. 1 and 5, the two rotating wheels 9, 9 are bridged between the upper machine casing 3 and the lower machine casing 3 inside the dust cover 5. The upper and lower positions of the support member 8 provided on the upper and lower sides are provided so as to be freely pivoted and rotated. As shown in the drawing, the two rotating wheels 9 and 9 are configured such that their outer peripheral edges are formed on the gears 11 and 11 over the entire circumference and meshed with each other so that they can be transmitted. The two gears 11 and 11 are configured to press and hold the meshing portions with the position regulating rollers 12 and 12 from both the left and right sides, as shown in FIGS. 1, 7, and 8. The rotating wheels 9 and 9 are configured such that both the upper and lower rotating portions are respectively held and positioned by the position regulating roller 12 to prevent vibration and displacement, as shown in the drawing.

  As shown in the drawing, the electric motor 20 is attached to the upper portion of the support member 8 by a mounting bracket 21 and drives the transmission gear 22 via a reduction mechanism (not shown). As shown in FIG. 1, the transmission gear 22 is configured to be engaged with the gear 11 of the rotating wheel 9 pivoted on the upper side to transmit.

  In this way, the two rotating wheels 9 and 9 are configured to be transmitted from the transmission gear 22 driven by the electric motor 20 and to rotate together with the rotational force transmitted from the upper side. In this case, the rotating wheels 9 and 9 of the embodiment are configured to be greatly decelerated by the electric motor 20 described above and the speed reduction mechanism connected thereto and 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. The structure is fixed so as to be rotatable together. 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.

  The windshields 10 and 10 are coated with a non-slip material such as a fluororesin material on the surface, in particular, the surface that rotates in close contact with the mesh surface of the dust-proof net 4, or the If a thin plate (thin film) of the material is bonded to make it slippery, smooth rotation can be expected.

  Further, as shown in FIG. 10, the windshield plates 10 and 10 are formed in a mountain-height shape by attaching a slippery film 25 to the surface and filling a sponge material 26 over the entire periphery of the side edge as shown in FIG. The inside is hollow, pressed against the dust net 4 and brought into close contact, and rotated.

Next, the wind shielding plate 10 of the embodiment shown in FIG. 11 has a structure in which a spring 27 is interposed at an attachment site with the rotating wheel 9 and is always pressed and adhered to the dust net 4 side with spring pressure. Yes.
Both of these two embodiments are means for bringing the wind shielding plates 10 and 10 into close contact with the inner surface of the dust net 4 and reducing the intake pressure of the intake fan 6 to zero. This is a means for effectively collecting dust and the like by increasing the suction force of dust by increasing the difference from the intake pressure before rotation of the plate 10.

  As shown in FIG. 1, the wind shielding plates 10, 10 are attached to two rotating wheels 9, 9 that are rotatably supported at the upper position and the lower position of the support member 8, respectively. The structure is such that it is longer than the diameter and reverses up and down integrally with the rotating wheels 9 and 9 meshed with each other, but as can be seen from the drawing, a part (A) where the mutual rotation trajectories overlap can be formed. The configuration is arranged close to each other. As described above, the wind shielding plates 10 and 10 are formed so as to be longer than the diameter of the rotating wheels 9 and 9 so that a portion (A) where the mutual rotation trajectories overlap can be formed. The dust that is carried around while the wind plate 10 is gathered as it is rotated is inherited and carried around at the portion (A) where the lower wind shield plate 10 that rotates from the opposite direction overlaps. Can be sent to and discharged. Note that the flow rate of the outside air that is sucked around the edges of the wind shielding plates 10 and 10 is higher than the flow rate of the outside air that passes through other parts of the dust screen 4, and the edges of the wind shielding plates 10 and 10 are increased. Dust such as sawdust is adsorbed on the outer surface of the dust-proof net 4 facing the part. The dust moves on the outer surface of the dust screen 4 together with the wind shielding plates 10 and 10 by the rotation of the wind shielding plates 10 and 10.

  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. The machine frame 3 in the horizontal intermediate portion that is attached and supported from the side is arranged to constitute a windless range.

  The embodiment configured as described above is carried around to the portion (A) where the rotation trajectory of the upper rotating windshield 10 is gathered on the surface of the dust screen 4 and overlapped with each other. Then, the collected dust enters the non-wind zone formed by the machine casing 3 and suddenly loses the action of the suction wind, so that it loses the suction force and falls away from the net surface. And in the case of an Example, the dust which remains on the surface of the dust-proof net | network 4 of the part (A) to superpose | stack is inherited by the lower wind-shielding board 10, and also rotates toward the downward direction, and a dust-proof net | network ( 4) The dust reaches the lower part and is discharged. By repeating such an action, the upper wind shielding plate 10 is in a state in which the dust accumulated in the mesh of the dust mesh 4 on the front side has been removed, so that the mesh is hardly blocked and a ventilation area is secured. Therefore, the cooling efficiency of each device in the engine room 2, the radiator 7, and the engine 1 is not impaired.

  Next, even when the wind shields 10 and 10 are configured such that the rotation trajectory thereof extends beyond the stretched range of the dust screen 4 and reaches the portion of the outer machine frame 3, the above-described action is also achieved. By repeating the same operation, the dust accumulated on the front side in the rotation direction can be dropped.

  And if the said dust-proof cover 5 is bent inward (engine room 2 side) from the surface of the dust-proof net | network 4 along the lower end edge and comprises the receding part 13, it will fall along the surface of the dust-proof cover 5 The part where dust such as sawdust is caught is eliminated, and the discharge can be performed smoothly.

  In the case of this embodiment, as shown in FIGS. 1 and 3, the retreating portion 13 is configured to have a dustproof net 4 attached thereto and configured as an outside air intake port, whereby an outside air suction port with less dust can be formed.

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 Gear 12 Position control roller 13 Retraction part A Rotation part overlap part

Claims (6)

  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 pivotally supported so as to rotate in conjunction with each other, and each of the rotating wheels (9, 9) is shielded from rotating while maintaining a state of being close to or in close contact with the inner surface of the dust-proof net (4). A dustproof device for a combine, wherein a wind plate (10, 10) is attached.   Each of the wind shields (10, 10) is formed longer than the diameter of the rotating wheel (9, 9), and the two wind shields (10, 10) have a portion (A) where the mutual rotation trajectories overlap. The combine dustproof device according to claim 1, wherein the dustproof device is arranged so as to be able to.   The frame body (3) for attaching and supporting the dustproof net (4) from above and below is disposed in a portion (A) where the mutual rotation trajectories of the windshield plates (10, 10) overlap. Item 3. A dustproof device for a combine according to Item 2.   The rotation path of the wind shields (10, 10) extends beyond the stretched range of the dust screen (4) and reaches the frame (3) on the outer periphery of the dust screen (4). The combine dustproof device according to claim 2 or 3, characterized in that   The two rotating wheels (9, 9) have their outer peripheral edges formed on the gears (11, 11) and meshed with each other to prevent meshing on both sides of the meshing part of the gears (11, 11). 2. The dust-proof device for a combine according to claim 1, wherein a position regulating roller (12, 12) is provided.   The dust-proof device for a combine according to claim 1, wherein a receding portion (13) is provided at a lower end portion of the dust-proof cover (5) so as to be retracted inward from the surface of the dust-proof net (4).

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