JP4687701B2 - Working part structure of work vehicle - Google Patents

Description

  The present invention relates to a driving part structure of a work vehicle.

  2. Description of the Related Art Conventionally, for example, a device that cleans dust adhering to a dust screen attached to a radiator cover arranged on the intake side of an engine room of a combine to prevent clogging and enhances an engine cooling effect has been disclosed. .

For example, the publicly known technology described in Patent Document 1 below is a configuration in which a brush provided on a dustproof mesh surface is rotated in conjunction with a clutch operation of a discharge auger to clean dust attached to the mesh surface. It is shown. Japanese Patent Application Laid-Open No. 2004-228561 discloses a configuration in which a dust removing net is provided with a cleaning mechanism and operated based on a temperature change in the vicinity of the engine. This known technique discloses a technique for eliminating clogging of a dust removal net by a cleaning operation and preventing overheating when the engine temperature becomes high.
Japanese Utility Model Publication No. 62-160737 Japanese Patent Laid-Open No. 60-159328

  Conventionally, the dust-proof net of the radiator cover has a possibility that the dust is attached to the mesh surface due to the intake action of the cooling air and the suction action of the outside air is hindered, leading to overheating of the engine. A cleaning means is provided, and means for removing the adhering dust and preventing the engine from overheating while keeping the air intake action of the outside air always good and effectively cooling the radiator is provided.

  And this kind of conventional apparatus is such that the cleaning mechanism (brush) is rotated on the mesh surface or reciprocally oscillated as shown in the two patent documents 1 and 2 presented by the applicant in the previous section. The configuration is to let Therefore, in the two known techniques, only the part where the cleaning range of the brush on the mesh surface is limited to the circular rotation range or the fan-shaped reciprocating swing range is cleaned, and the entire surface of the dustproof net or almost the entire surface is cleaned. There was a problem that could not be cleaned.

In order to solve the above problems, the present invention takes the following technical means.
That is, according to the present invention, the outside air sucked by the cooling fan (1) passes through the dustproof net (3) and is supplied to the radiator (5) in the engine room (4), and the dustproof net (3 ) Is disposed close to the mesh surface (3a), and the dustproof net (3) is provided. The radiator cover (2) is provided with a pair of upper and lower guide devices (7a, 7b) that slidably support the upper and lower portions of the wind shield plate (6), and the wind shield plate (6) is a dustproof net (3). of the reciprocating it is configured laterally along the network surface (3a), shielding wind plates (6), divided into two and the upper plate (6a) and lower plate (6b), the upper plate ( 6a) and the middle part of the lower plate (6b) Telescopic and folded freely linked, with the movement of the shielding wind plate (6), the working vehicle upper plate (6a) is characterized by being configured to position change relative to the lower plate (6b) The driving part structure is used.

This movement, net surface wind shielding gave a width enough to block the passage outside air closes the (3a) plate (6), sideways direction along the mesh surface of the dust-proof net (3) (3a) By doing so, the passing outside air can be blocked and the dust adsorbed on the mesh surface can be dropped and removed. In this case, the air shield plate (6), to the dustproof net substantially square shape (3), because it moves over the most entire network surface (3a) by moving laterally, the network surface (3a) The outside air can be temporarily blocked to remove dust.

In addition , since the wind shield plate ( 6 ) is supported by the guide device ( 7 a, 7 b ) at the top and bottom, the movement in the lateral direction is stably performed and temporarily passes over substantially the entire surface of the dust-proof net ( 3 ). It can effectively remove dust by blocking outside air.

The wind-shielding plate ( 6 ) divided into the upper and lower parts can be moved while being inclined on a mesh surface ( 3b ) other than a rectangle, for example, a triangular shape, so that substantially the entire dust-proof net ( 3 ) is cleaned. It was possible to do.

According to the invention the mobile, the network surface wind shielding plate to have a width enough to close the (3a) (6), the network surface of the dust-proof net (3) (3a, 3b, 3c) sideways direction along the Therefore, it is possible to effectively remove the dust adsorbed on the mesh surfaces ( 3a, 3b, 3c ) by temporarily blocking the passing outside air. Then, the air shield plate (6) is, with respect to dust protective net (3), because most while along the horizontal direction toward the net surface (3a, 3b, 3c) can be moved over the entire surface, dustproof nets cleaning dust ( 3 ) is performed over almost the entire surface, and the range of cleaning is not limited as in the case of rotation with a conventional brush, and the cooling effect of the radiator ( 5 ) and the engine is reduced and smooth work is performed. be able to.

Then, the upper and lower wind plates (6) shielding, since was slidably supported by the guide device (7a, 7b), lateral movement is performed stably, over substantially the entire surface of the dust-proof net (3) The passing outside air can be temporarily blocked to effectively remove dust, and the reduction of the cooling effect of the radiator ( 5 ) and the engine can be reduced to perform a smooth operation.

Then, the air shielding plate (6) divided under two upper, telescopic and folded freely linked, with the movement of the air shield plate (6), the upper plate (6a) is lower plate (6b) since posture changes to, other than a rectangle, also be moved while inclined, for example, on triangular mesh surface (3b), it is assumed that it is cleaned of substantially the entire surface of the dustproof net (3), the radiator (5) and Smooth operation can be performed with less decrease in the cooling effect of the engine.

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, as shown in FIG. 6, the combine is shown on the vehicle body 11 equipped with the crawlers 10, 10, although not shown, a threshing device (as is well known, adjacent to the back side of the grain tank 12 in FIG. 6. Is provided, and a cutting and conveying device 13 is provided on the front side thereof. As shown in the drawing, the Glen tank 12 is configured to be mounted on the right side of the threshing device behind the driver's seat 14 disposed behind the harvesting and conveying device 13. And the Glen tank 12 is set as the structure which stores the 1st grain which the threshing apparatus threw and selected with the cutting threshing work. Reference numeral 15 denotes a grain discharge auger.

  As shown in FIGS. 1 and 6, the engine room 4 is disposed below the driver's seat 14, and has an engine 16 mounted on the inner side, and the cooling fan 1 is pivoted adjacent to the outer side. In addition, a radiator 5 is provided on the outside thereof. As shown in the drawing, the radiator cover 2 is provided so as to freely open and close along the outer frame of the engine room 4, and a dust-proof net 3 is stretched so as to face the radiator 5 immediately inside. The engine cooling device is configured so that cold air can be supplied to the engine room 4 by passing outside air while removing dust by the suction action of the cooling fan 1.

  As shown in the drawing, the wind-shielding plate 6 is formed to be long in the vertical direction so as to close the mesh surfaces 3a, 3b, 3c of the dust-proof net 3 and to have a width that can temporarily block the passage of outside air. However, it is configured to be arranged close to the mesh surfaces 3a, 3b, 3c.

  Next, as shown in FIGS. 2 to 5, the guide devices 7 a and 7 b are arranged in parallel with the upper and lower portions of the radiator cover 2, and are provided on the upper and lower portions of the wind shielding plate 6. The slide holders 18 and 18 are slidably supported. As shown in FIGS. 2 to 4, the guide devices 7a and 7b are configured such that the upper side with a deformed mesh surface 3b, which will be described later, is shorter than the lower side where the square mesh surface 3c is formed. Yes.

  In this way, the wind shield plate 6 has the pair of upper and lower guide devices 7a and 7b slidably supporting the slide holders 18 and 18 along the mesh surfaces 3a, 3b and 3c of the dustproof net 3. It is configured to be able to slide sideways (in the front-rear direction with respect to the vehicle body 11). In addition, as for a guide apparatus, it is free to provide an intermediate guide apparatus as an auxiliary to the cross rail in the upper and lower intermediate positions of the radiator cover 2.

  Next, as shown in FIGS. 2 and 3, the wind-shielding plate 6 is divided into an upper plate 6a and a lower plate 6b, which are divided into upper and lower parts, and a long hole 19 is opened in the upper plate 6a. The plate 6b is provided with a slide pin 20 that is slidably fitted into the long hole 19 and is connected to the portion (intermediate portion) so as to be freely expandable and foldable. Therefore, as shown by the phantom line in FIG. 2, when the wind shielding plate 6 reaches the end point position of the upper short guide device 7a, only one lower plate 6b is laterally moved by the lower long guide device 7b. The upper plate 6a is interlocked so as to close the mesh surface 3b which has been deformed by being inclined and can block the outside air passing therethrough. At this time, the wind shield plate 6 extends vertically and is foldable due to the relationship between the long hole 19 and the sliding pin 20 in the upper plate 6a and the lower plate 6b.

  Then, as shown by a solid line in FIG. 2, the wind shielding plate 6 passes on a plate surface that is not the mesh surface of the lower dustproof net 3 and passes over the mesh surface 3a at the corner (one corner of the triangle) as shown in the drawing. The length is such that it can be moved. Therefore, even if the wind-shielding plate 6 is the dust-proof net 3 provided in a diagonally cut shape, the dust is moved by moving the portion and temporarily blocking the outside air passing therethrough. It can clean dust such as dust.

  As shown in FIG. 3, the wind-shielding plate 6 always has a spring 8 interposed between the plates 6a and 6b at the connecting portion between the upper plate 6a and the lower plate 6b. It is set as the structure to which a tensile tension works. Accordingly, in FIG. 3, the wind shield plate 6 moves from the position of the one-dot chain line to the position of the two-dot chain line against the tension of the spring 8, and can be automatically restored by the tension of the spring 8 in the reverse return stroke. .

Next, a lateral movement mechanism of the wind shielding plate 6 will be described.
First, as shown in FIGS. 4 and 5, the lead cam shaft 25 spans the left and right side frames 26, 26 of the radiator cover 2 inside the dust-proof net 3 and screws the lead metal 27. The bearing is supported so that it can rotate freely. The electric motor 28 is configured to transmit the lead cam shaft 25 forward and backward by engaging the speed reducer and the transmission gears 29 and 30 with the upper device. Note that the electric motor 28 is configured so that it can be appropriately switched ON and OFF by a switch operation (not shown).

  As shown in FIG. 4, the left and right limit switches 31 and 32 are provided close to both end portions of the lead cam shaft 25, provided at positions where the lead metal 27 can be detected, and the wind shield plate 6 is located on the left or right side. When it reaches the end and detects, the rotation direction of the electric motor 28 is switched.

  The outside of the engine room 4 when the harvesting / threshing operation is performed in a field with much dust or the combine operation is continued for a long time by the combine equipped with the dust removing device of the dustproof net configured as described above. In many cases, dust and dirt adhere to the dust-proof net 3 of the radiator cover 4 provided on the radiator cover 4 to hinder the outside air suction action. Therefore, when the operator turns on a switch (not shown), the electric motor 28 is started, the lead cam shaft 25 is driven via the transmission gears 29 and 30, and the lead metal 27 is driven in the forward rotation direction. Then, as shown in FIG. 2, the wind shield plate 6 starts to move laterally together with the lead metal 27, and the upper and lower slide holders 18 and 18 are guided and supported by the guide devices 7a and 7b, respectively. It moves on the net surface 3 a of the net 3. At that time, in the step of continuously moving, the wind shield plate 6 is temporarily blocked by the suction action of the cooling fan 1 to stop the outside air from passing, and adheres to the mesh surface 3a. Dust that has lost its adsorption power falls and is cleaned to eliminate clogging of the mesh surface.

  In the embodiment, as already described, the windshield plate 6 having a width enough to block the mesh surface 3a is moved in the lateral direction along the mesh surfaces 3a, 3b, 3c of the dustproof net 3. Therefore, it is possible to effectively remove the dust adhering to the mesh surface by temporarily blocking the passing outside air. In the embodiment, since the wind shielding plate 6 can move over the entire surface along the mesh surfaces 3a, 3b, and 3c with respect to the dustproof net 3, the dust can be removed from the substantially entire surface and clogged. Can be prevented.

  In the case of the embodiment, since the wind shielding plate 6 is slidably supported by the upper and lower guide devices 7 a and 7 b, the movement in the lateral direction is stably performed, and the dust-proof net 3 is in turn in order. It is possible to block the outside air passing through temporarily and effectively remove dust.

  In the embodiment, the wind-shielding plate 6 divided into the upper and lower parts is connected to be freely stretchable and bendable, and is laterally moved while being guided by the above-described upper and lower guide devices 7a and 7b. It is possible to move on the mesh surface 3b while inclining, and the deformed mesh surface 3b on the dustproof net 3 can be cleaned.

  In the embodiment, while moving on the deformed mesh surface 3b while being inclined, the suction outside air is temporarily blocked to remove the dust on the mesh surface 3b. The upper plate 6a in an inclined state can automatically return to a straight line with the lower plate 6b by the tension of the spring 8 that is always pulled between them.

Next, another embodiment shown in FIG. 7 will be described.
In the embodiment, as shown in the drawing, the cleaning tool 35 for removing the attached dust is rotated and moved with respect to the deformed dust-proof net 3 while drawing a deformed locus corresponding to the outer shape of the net. Device 36.

  First, the rotating wheel 37 is supported by a support arm 38 that is stretched up and down on the radiator cover 2, and is rotationally driven by power transmitted from the electric motor 39 via the drive gear 40. The guide cam 41 is fixed in a stationary state near the axis of the rotating wheel 37, and the cam shape is configured to match the net shape of the dust-proof net 3. The rotating arm 43 is configured such that a base portion is pivotally attached to the central shaft portion of the rotating wheel 37, and the distal end portion extends in the radial direction to the vicinity of the outer ring of the rotating wheel 37 to rotate integrally. The rotary arm 43 is provided with a long hole (radially oriented) 44 along the longitudinal direction on the plate surface, and the sliding pin 45 of the cleaning tool 35 is slidable in the long hole 44. The configuration is inserted. The guide roller 46 is configured to be tensioned by the compression spring 47 so as to be pivotally supported by the cleaning tool 35 and always guided in a pressure contact state with the outer peripheral guide surface of the guide cam 41. Instead of the compression spring 47, the guide roller 46 may be guided to the outer peripheral guide surface of the guide cam 41 by a tension spring.

  In the embodiment configured as described above, when the electric motor 39 is started by operating a switch to clean the mesh surface of the dustproof net 3, the rotating wheel 37 is transmitted via the drive gear 40. Together with the rotating arm 43, the rotation starts in the direction of the arrow. Then, the cleaning tool 35 rotates while pressing the guide roller 46 toward the guide cam 41 by the compression spring 47, and the sliding pin 45 moves while being guided in the elongated hole 44. In this way, the cleaning tool 35 can perform a cleaning operation in a range almost close to the entire surface while drawing a locus close to the outer shape of the dustproof net 3 in the process of rotational movement.

Top view of engine room Front view of the radiator cover showing the action of the wind shield plate Front view of the radiator cover showing the action of the wind shield plate Rear view of radiator cover Side cross-sectional view of previous figure 5 Combine side view Front view of another embodiment

1 Cooling Fan 2 Radiator Cover 3 Dust-proof Net 3a Net Surface (Overall)
4 Engine room 5 Radiator 6 Wind shield plate 6a Upper plate 6b Lower plate 7a Guide device (upper)
7b Guide device (bottom)

Claims (1)

The outside air sucked by the cooling fan (1) passes through the dustproof net (3) and is supplied to the radiator (5) in the engine room (4), and the mesh surface (3a) of the dustproof net (3) ) And a radiator cover (2) provided with the dust-proof net (3), the wind-shielding plate (6) having a width sufficient to block the outside air passing therethrough is disposed close to the mesh surface (3a ). Are provided with a pair of upper and lower guide devices (7a, 7b) for slidably supporting the upper and lower portions of the wind shield plate (6) , and the wind shield plate (6) is the mesh surface (3a) of the dustproof net (3 ). a structure that can reciprocate laterally along the shielding wind plate (6), divided into two and the upper plate (6a) and lower plate (6b), the upper plate (6a) and lower plate ( 6b) can be extended and folded in the middle Linked to standing, with the movement of the shielding wind plate (6), the driving part structure of a working vehicle in which the upper plate (6a) is characterized by being configured to position change relative to the lower plate (6b).

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